/* --- Reset & Global Variables --- */
:root {
  --sidebar-duration: 300ms;
  --sidebar-easing: cubic-bezier(0.4, 0, 0.2, 1);
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body {
  height: 100%;
  min-height: 100%;
  min-height: -webkit-fill-available;
  min-height: 100dvh;
  overflow: hidden;
}
body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  caret-color: var(--cursor-color, var(--accent));
}
::selection,
::-moz-selection {
  background: var(--selection-bg, rgba(59, 130, 246, 0.28));
  color: inherit;
}
a,
a:visited,
a:hover,
a:active,
a:focus {
  color: inherit;
  text-decoration: none;
  outline: none;
}
button,
a,
input,
select,
textarea,
[role="button"],
.mobile-tab-item,
.deck-item,
.study-mode-card,
.matrix-tile,
.action-btn,
.action-btn-sm,
.upload-btn,
.btn-primary,
.fc-stage-box,
.fc-card,
.fc-btn,
.folder-chip,
.chip-add-btn,
.theme-card,
.deck-info,
.home-action-card,
.editor-card-row {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}
/* --- Scrollbars --- */
.main-content::-webkit-scrollbar {
  width: 6px;
}
.main-content::-webkit-scrollbar-track {
  background: transparent;
}
.main-content::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}
.main-content::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}
/* --- Layout & View Framework --- */
#app {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  height: 100%;
  min-height: 100%;
  min-height: -webkit-fill-available;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}
/* --- Top Navigation Bar --- */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding-top: max(8px, env(safe-area-inset-top, 0px));
  padding-bottom: 8px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  min-height: calc(56px + env(safe-area-inset-top, 0px));
  box-sizing: border-box;
  gap: 16px;
  width: 100%;
}
/* --- Sidebar Toggle Button --- */
.sidebar-toggle-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  flex-shrink: 0;
  margin-right: -4px;
  padding: 0;
  transition:
    background-color 150ms ease,
    border-color 150ms ease,
    color 150ms ease,
    transform 120ms ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.sidebar-toggle-btn:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--border-color);
  color: var(--text-primary);
}
.sidebar-toggle-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.sidebar-toggle-btn:active {
  transform: scale(0.92);
}
.sidebar-toggle-icon {
  width: 20px;
  height: 20px;
  display: block;
  overflow: visible;
  transition: transform var(--sidebar-duration) var(--sidebar-easing);
}
.sidebar-line {
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  transform-origin: center;
  transition:
    transform var(--sidebar-duration) var(--sidebar-easing),
    opacity 200ms ease,
    stroke 180ms ease;
}
@media (hover: hover) and (pointer: fine) {
  .sidebar-toggle-btn:hover .sidebar-line.line-top {
    transform: translateX(1px);
  }
  .sidebar-toggle-btn:hover .sidebar-line.line-mid {
    transform: translateX(-1px);
  }
  .sidebar-toggle-btn:hover .sidebar-line.line-bot {
    transform: translateX(1px);
  }
}
html.sidebar-collapsed .sidebar-line.line-top,
body.sidebar-collapsed .sidebar-line.line-top {
  transform: translateX(0);
}
html.sidebar-collapsed .sidebar-line.line-mid,
body.sidebar-collapsed .sidebar-line.line-mid {
  transform: scaleX(0.62);
  transform-origin: 4px 12px;
}
html.sidebar-collapsed .sidebar-line.line-bot,
body.sidebar-collapsed .sidebar-line.line-bot {
  transform: scaleX(0.84);
  transform-origin: 4px 18px;
}
html.sidebar-collapsed .sidebar-toggle-icon,
body.sidebar-collapsed .sidebar-toggle-icon {
  transform: scale(0.94);
}
/* --- Brand & Nav Links --- */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}
.nav-brand svg {
  color: var(--accent);
}
.nav-brand-img {
  width: 24px;
  height: 24px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}
.nav-brand span {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  margin-left: 32px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 150ms ease;
}
.nav-link:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
}
.nav-link.active {
  background: var(--accent-dim);
  font-weight: 600;
}
/* --- Nav Controls & Create Button --- */
.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.nav-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 150ms ease;
}
.nav-icon-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
}
.nav-icon-btn.active,
.nav-icon-btn.playing {
  color: var(--accent);
}
.nav-create-btn {
  padding: 6px 16px;
  border-radius: 8px;
  background: var(--accent);
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: filter 150ms ease;
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-create-btn:hover {
  filter: brightness(1.1);
}
/* --- User Avatar & Profile Dropdown --- */
.nav-avatar,
html:not([data-ui-mode="cyberpunk"]) .nav-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50% !important;
  background: var(--bg-surface-elevated);
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid var(--border-color);
  position: relative !important;
  outline: none;
  transition: all 150ms ease;
  user-select: none;
  flex-shrink: 0;
  padding: 0 !important;
  overflow: visible !important;
}
.nav-avatar:hover {
  background: var(--bg-surface);
  border-color: var(--accent);
  color: var(--text-primary);
  transform: translateY(-1px);
}
.nav-avatar:active {
  transform: translateY(0);
}
.nav-avatar.has-user {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}
.nav-avatar-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}
.nav-avatar.has-user .nav-avatar-icon {
  display: none !important;
}
.nav-avatar:not(.has-user) .nav-avatar-initial {
  display: none !important;
}
.nav-avatar:not(.has-user) .nav-avatar-status-dot {
  display: none !important;
}
.nav-avatar-initial {
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #ffffff !important;
}
.nav-avatar-status-dot {
  position: absolute;
  bottom: 0px;
  right: 0px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid var(--bg-surface);
  background: #10b981;
  display: block;
  pointer-events: none;
}
.nav-avatar-status-dot.offline {
  background: #f59e0b;
}
.nav-avatar-status-dot.syncing {
  background: var(--accent);
  animation: pulseSync 1.2s infinite;
}
@keyframes pulseSync {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}
.nav-user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 16px;
  width: 240px;
  background: var(--bg-surface-elevated, #1c1c1f);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow:
    0 12px 32px rgba(0, 0, 0, 0.45),
    0 2px 8px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  padding: 8px;
  animation: navDropdownFade 150ms ease;
  user-select: none;
}
@keyframes navDropdownFade {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.nav-dropdown-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
}
.nav-dropdown-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent, #6366f1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
  overflow: hidden;
}
.nav-dropdown-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.nav-dropdown-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-dropdown-sub {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-dropdown-divider {
  height: 1px;
  background: var(--border-color);
  margin: 6px 4px;
}
.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none !important;
  text-align: left;
  transition: all 120ms ease;
  font-family: inherit;
}
.nav-dropdown-item:visited {
  color: var(--text-secondary);
  text-decoration: none !important;
}
.nav-dropdown-item:hover {
  background: var(--bg-surface);
  color: var(--text-primary);
  text-decoration: none !important;
}
.nav-dropdown-item svg {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color 120ms ease;
}
.nav-dropdown-item:hover svg {
  color: var(--accent);
}
.nav-dropdown-item.danger:hover,
.nav-dropdown-item.danger:hover svg {
  color: #ef4444;
}
.nav-upgrade-btn.is-pro {
  background: var(--bg-surface);
  border-color: var(--accent);
  color: var(--accent);
}
.nav-upgrade-btn.is-pro .pro-sparkle-dot {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}
/* --- Main Views & Home Dashboard --- */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 0;
  scroll-behavior: smooth;
}
.view-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 32px 24px;
  width: 100%;
  box-sizing: border-box;
}
.home-hero {
  padding: 48px 0 32px;
}
.home-title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.home-section {
  margin-top: 40px;
}
.section-title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.section-link {
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
}
.home-actions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.home-action-card,
.home-action-card:visited {
  color: var(--text-primary);
  text-decoration: none !important;
  font: inherit;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  width: 100%;
  transition: all 150ms ease;
}
.home-action-card:hover {
  border-color: var(--accent);
  background: var(--bg-surface-elevated);
  text-decoration: none !important;
  color: var(--text-primary);
}
.home-action-card:active,
.home-action-card:focus,
.home-action-card * {
  text-decoration: none !important;
}
.home-action-card .action-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.home-action-card .action-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none !important;
}
.home-action-card .action-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
  text-decoration: none !important;
}
.home-decks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.home-deck-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 18px;
  min-height: 120px;
  cursor: pointer;
  transition: all 150ms ease;
}
.home-deck-card:hover {
  border-color: var(--accent);
  background: var(--bg-surface-elevated);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.home-deck-card-top {
  margin-bottom: 12px;
}
.home-deck-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.home-deck-meta {
  font-size: 12px;
  color: var(--text-secondary);
}
.home-deck-card-bottom {
  display: flex;
  justify-content: flex-end;
}
/* --- Recent Deck Action Buttons --- */
.home-deck-study-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-dim);
  color: #000000 !important;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 150ms ease;
}
.home-deck-study-btn:hover {
  background: var(--accent);
}
.home-empty {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 14px;
}
.library-header {
  padding-bottom: 24px;
}
.page-title {
  font-family: var(--font-display, inherit);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.search-container {
  position: relative;
  margin-bottom: 16px;
}
.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}
/* --- Search Bar & Deck Grid --- */
.search-input {
  width: 100%;
  padding: 10px 16px 10px 42px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  font-family: var(--font-family);
  transition: all 150ms ease;
}
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.search-input::placeholder {
  color: var(--text-muted);
}
.folder-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  overflow-x: auto;
}
.folder-chips-scroll {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  flex: 1;
}
.folder-chip {
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  display: flex;
  align-items: center;
}
.folder-chip.active {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--accent);
}
.folder-delete-x {
  margin-left: 6px;
  font-size: 11px;
  opacity: 0.5;
  transition: opacity 150ms ease;
}
.folder-delete-x:hover {
  opacity: 1;
}
.chip-add-btn {
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px dashed var(--border-color);
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}
.empty-library {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  text-align: center;
}
.empty-library h3 {
  font-size: 18px;
  font-weight: 600;
  margin-top: 20px;
  margin-bottom: 8px;
}
.empty-library p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}
.empty-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}
.deck-grid,
.deck-list-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  position: relative;
  z-index: 10;
}
.deck-grid:has(.deck-menu-container.is-open),
.deck-list-container:has(.deck-menu-container.is-open),
.deck-grid.has-open-menu,
.deck-list-container.has-open-menu {
  position: relative !important;
  z-index: 60 !important;
}
/* --- Deck Cards & Actions --- */
.deck-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  cursor: pointer;
  transition: all 150ms ease;
  display: flex;
  flex-direction: column;
  position: relative;
}
.deck-item:has(.deck-menu-container.is-open),
.deck-item.has-open-menu {
  position: relative !important;
  z-index: 70 !important;
}
.deck-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.deck-item.is-selected-deck {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--bg-surface), var(--accent-dim));
}
.deck-info {
  flex: 1;
}
.deck-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.deck-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
}
.deck-actions-group {
  display: flex;
  gap: 6px;
  margin-top: 12px;
  align-items: center;
  position: relative;
}
.deck-actions-group:has(.deck-menu-container.is-open),
.deck-actions-group.has-open-menu {
  position: relative !important;
  z-index: 80 !important;
}
.deck-action-primary,
.study-btn {
  background: var(--accent);
  color: #000000 !important;
  border: none;
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none !important;
  line-height: 1;
  transition: all 150ms ease;
}
.study-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

/* Deck Study Action Buttons - Consistent Black Text & Icons */
.deck-action-primary,
.deck-action-primary:visited,
.deck-action-primary:hover,
.deck-action-primary:active,
.deck-action-primary:focus,
.study-btn,
.study-btn:visited,
.study-btn:hover,
.study-btn:active,
.study-btn:focus,
.home-deck-study-btn,
.home-deck-study-btn:visited,
.home-deck-study-btn:hover,
.home-deck-study-btn:active,
.home-deck-study-btn:focus,
a.deck-action-primary,
a.deck-action-primary:visited,
a.deck-action-primary:hover,
a.deck-action-primary:active,
a.deck-action-primary:focus,
a.study-btn,
a.study-btn:visited,
a.study-btn:hover,
a.study-btn:active,
a.study-btn:focus,
a.home-deck-study-btn,
a.home-deck-study-btn:visited,
a.home-deck-study-btn:hover,
a.home-deck-study-btn:active,
a.home-deck-study-btn:focus,
button.deck-action-primary,
button.deck-action-primary:visited,
button.deck-action-primary:hover,
button.deck-action-primary:active,
button.deck-action-primary:focus,
button.study-btn,
button.study-btn:visited,
button.study-btn:hover,
button.study-btn:active,
button.study-btn:focus,
button.home-deck-study-btn,
button.home-deck-study-btn:visited,
button.home-deck-study-btn:hover,
button.home-deck-study-btn:active,
button.home-deck-study-btn:focus,
html[data-ui-mode="cyberpunk"] .deck-action-primary,
html[data-ui-mode="cyberpunk"] .deck-action-primary:visited,
html[data-ui-mode="cyberpunk"] .deck-action-primary:hover,
html[data-ui-mode="cyberpunk"] .deck-action-primary:active,
html[data-ui-mode="cyberpunk"] .deck-action-primary:focus,
html[data-ui-mode="cyberpunk"] .study-btn,
html[data-ui-mode="cyberpunk"] .study-btn:visited,
html[data-ui-mode="cyberpunk"] .study-btn:hover,
html[data-ui-mode="cyberpunk"] .study-btn:active,
html[data-ui-mode="cyberpunk"] .study-btn:focus,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn:visited,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn:hover,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn:active,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn:focus {
  color: #000000 !important;
}

.deck-action-primary svg,
.deck-action-primary:visited svg,
.study-btn svg,
.study-btn:visited svg,
.home-deck-study-btn svg,
.home-deck-study-btn:visited svg,
.deck-action-primary polygon,
.study-btn polygon,
.home-deck-study-btn polygon,
.deck-action-primary span,
.study-btn span,
.home-deck-study-btn span,
html[data-ui-mode="cyberpunk"] .deck-action-primary svg,
html[data-ui-mode="cyberpunk"] .study-btn svg,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn svg,
html[data-ui-mode="cyberpunk"] .deck-action-primary polygon,
html[data-ui-mode="cyberpunk"] .study-btn polygon,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn polygon,
html[data-ui-mode="cyberpunk"] .deck-action-primary span,
html[data-ui-mode="cyberpunk"] .study-btn span,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn span {
  color: #000000 !important;
  fill: currentColor !important;
}

.deck-action-secondary,
.learn-btn {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none !important;
  line-height: 1;
  transition: all 150ms ease;
}
.learn-btn:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--accent);
  transform: translateY(-1px);
}
.deck-menu-container {
  position: relative;
  margin-left: auto;
}
.deck-menu-container.is-open {
  position: relative !important;
  z-index: 90 !important;
}
.deck-menu-trigger {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.deck-popover-card {
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 6px;
  z-index: 200 !important;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 6px;
  min-width: 190px;
  max-height: min(340px, calc(100dvh - 140px));
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: none;
}
.deck-menu-container.open-up .deck-popover-card {
  top: auto;
  bottom: 100%;
  margin-top: 0;
  margin-bottom: 6px;
}
.deck-menu-container.is-open .deck-popover-card {
  display: block;
}
.popover-list {
  list-style: none;
}
.popover-element {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
}
.popover-element a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit !important;
  text-decoration: none !important;
  width: 100%;
}
.popover-element:hover {
  background: var(--bg-surface);
}
.popover-element.is-danger {
  color: var(--danger);
}
.popover-separator {
  height: 1px;
  background: var(--border-color);
  margin: 4px 0;
}
.back-link,
.back-link:visited,
.study-back-link,
.study-back-link:visited {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary) !important;
  font-family: var(--font-family);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none !important;
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius-sm, 6px);
  margin-bottom: 20px;
  transition:
    color 150ms ease,
    background 150ms ease,
    border-color 150ms ease,
    box-shadow 150ms ease;
  line-height: 1.2;
}
.back-link svg,
.study-back-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  stroke-width: 1.75;
}
.back-link:hover,
.study-back-link:hover {
  color: var(--text-primary) !important;
  background: var(--bg-surface-elevated);
  text-decoration: none !important;
}
.deck-detail-header {
  margin-bottom: 32px;
}
.deck-detail-title {
  font-family: var(--font-display, inherit);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.deck-detail-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.deck-detail-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
}
.deck-detail-toolbar {
  display: flex;
  gap: 8px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.toolbar-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms ease;
}
.toolbar-btn:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
}
.toolbar-btn.danger {
  color: var(--danger);
}
.toolbar-btn.danger:hover {
  border-color: var(--danger);
}
/* --- Study Modes Hub --- */
.study-modes-section {
  margin-top: 40px;
}
.study-modes-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.study-mode-card {
  color: var(--text-primary);
  font: inherit;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: all 150ms ease;
}
.study-mode-card:hover {
  border-color: var(--accent);
  background: var(--bg-surface-elevated);
}
.study-mode-card:hover .mode-arrow {
  color: var(--accent);
}
.mode-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mode-info {
  flex: 1;
}
.mode-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}
.mode-desc {
  font-size: 13px;
  color: var(--text-secondary);
}
.mode-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--warning);
  margin-top: 4px;
  display: inline-block;
}
.mode-arrow {
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color 150ms;
}
/* --- Deck Terms List --- */
.deck-terms-section {
  margin-top: 40px;
}
.deck-terms-list {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}
.deck-term-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 14px 20px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
  line-height: 1.5;
}
.deck-term-row:last-child {
  border-bottom: none;
}
.term-word {
  font-weight: 500;
  color: var(--text-primary);
  word-break: break-word;
}
.term-def {
  color: var(--text-secondary);
  word-break: break-word;
}
.deck-terms-more {
  padding: 12px 16px;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
}
/* --- Study Mode: Flashcards --- */
.study-subnav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 8px;
}
.subnav-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.deck-pill {
  padding: 4px 14px;
  border-radius: 20px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}
.deck-sub-pill {
  padding: 4px 12px;
  border-radius: 20px;
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
}
.progress-bar-track {
  width: 100%;
  height: 4px;
  background: var(--bg-surface-elevated);
  border-radius: 4px;
  margin-bottom: 20px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 300ms ease;
}
.fc-stage-box {
  perspective: 1200px;
  -webkit-perspective: 1200px;
  margin: 20px auto;
  max-width: 680px;
  width: 100%;
  min-height: 360px;
  cursor: pointer;
  position: relative;
  box-sizing: border-box;
}
.fc-card {
  width: 100%;
  height: 100%;
  min-height: 360px;
  position: relative;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transform-origin: center center;
  -webkit-transform-origin: center center;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 !important;
  margin: 0 !important;
  box-sizing: border-box;
}
.fc-card.flipped {
  transform: rotateX(180deg);
  -webkit-transform: rotateX(180deg);
}
.fc-side {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  min-height: 360px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform-origin: center center;
  -webkit-transform-origin: center center;
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  box-sizing: border-box;
}
.fc-side-front {
  transform: rotateX(0deg);
  -webkit-transform: rotateX(0deg);
}
.fc-side-back {
  transform: rotateX(180deg);
  -webkit-transform: rotateX(180deg);
}
.fc-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.fc-type-tag {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.fc-center-text {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 600;
  text-align: center;
  padding: 20px;
}
.fc-footer-hint {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}
.fc-nav-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-top: 20px;
}
.fc-btn {
  padding: 8px 20px;
  border-radius: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 150ms;
}
.fc-btn:hover {
  background: var(--bg-surface-elevated);
}
.fc-counter-wrap {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}
.fc-shortcuts-note {
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 16px;
  padding: 8px 0;
}
.btn-primary,
.action-btn.primary,
.upload-btn.primary {
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
  border: none;
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: filter 150ms ease;
}
.btn-primary:hover,
.action-btn.primary:hover,
.upload-btn.primary:hover {
  filter: brightness(1.1);
}
.action-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 150ms ease;
}
.action-btn:hover {
  background: var(--bg-surface-elevated);
}
.action-btn-sm {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition:
    background 150ms ease,
    border-color 150ms ease;
}
.action-btn-sm:has(> svg) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.action-btn-sm.danger,
.action-btn.danger {
  color: var(--danger);
  border-color: var(--danger-dim);
}
.action-btn-sm.danger:hover,
.action-btn.danger:hover {
  background: var(--danger-dim);
}
.form-field {
  margin-bottom: 16px;
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-family);
  transition: all 150ms ease;
}
.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.settings-grid-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.custom-checkbox-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.custom-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
}
.custom-checkbox-input {
  appearance: none;
  -webkit-appearance: none;
  width: 0;
  height: 0;
  position: absolute;
  opacity: 0;
}
.custom-checkbox-box {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 150ms;
}
.custom-checkbox-input:checked + .custom-checkbox-box {
  background: var(--accent);
  border-color: var(--accent);
}
.custom-checkbox-input:checked + .custom-checkbox-box::after {
  content: "";
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
}
.custom-toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  cursor: pointer;
}
.custom-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-surface-elevated);
  border-radius: 24px;
  transition: 200ms;
}
.toggle-slider::before {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  left: 2px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--text-secondary);
  transition: 200ms;
}
.custom-toggle input:checked + .toggle-slider {
  background: var(--accent);
}
.custom-toggle input:checked + .toggle-slider::before {
  left: calc(100% - 20px);
  background: white;
}
/* --- Study Mode: Practice Test Setup --- */
.test-panel-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
}
.test-panel-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}
.learn-status-bar {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-secondary);
}
.learn-prompt-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}
.learn-prompt-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.learn-prompt-title {
  font-size: 20px;
  font-weight: 600;
  margin-top: 8px;
}
.mc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.mc-option {
  padding: 14px 18px;
  border-radius: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  cursor: pointer;
  font-size: 14px;
  transition: all 150ms ease;
}
.mc-option:hover {
  border-color: var(--accent);
  background: var(--bg-surface-elevated);
}
.mc-option.is-correct {
  border-color: var(--success);
  background: var(--success-dim);
}
.mc-option.is-wrong {
  border-color: var(--danger);
  background: var(--danger-dim);
}
.mc-option.is-disabled {
  pointer-events: none;
  opacity: 0.6;
}
.written-wrap {
  display: flex;
  gap: 8px;
}
.written-box {
  flex: 1;
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-family);
  transition: all 150ms ease;
}
.written-box:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.learn-feedback {
  padding: 16px;
  border-radius: 10px;
  margin-top: 16px;
}
.learn-feedback.is-correct {
  background: var(--success-dim);
  border-left: 3px solid var(--success);
}
.learn-feedback.is-wrong {
  background: var(--danger-dim);
  border-left: 3px solid var(--danger);
}

/* --- Study Mode: Learn --- */
.learn-continue-screen {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  cursor: pointer;
  user-select: none;
  outline: none;
  animation: learnFadeSlideIn 180ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes learnFadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.learn-continue-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg, 12px);
  padding: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease;
}

.learn-continue-screen.is-correct .learn-continue-card {
  border-color: rgba(34, 197, 94, 0.35);
  box-shadow: 0 4px 24px rgba(34, 197, 94, 0.08);
}

.learn-continue-screen.is-wrong .learn-continue-card {
  border-color: rgba(239, 68, 68, 0.35);
  box-shadow: 0 4px 24px rgba(239, 68, 68, 0.08);
}

.learn-continue-header {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.learn-continue-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.learn-continue-badge.is-correct {
  background: var(--success-dim);
  color: var(--success);
  border: 1px solid var(--success);
}

.learn-continue-badge.is-wrong {
  background: var(--danger-dim);
  color: var(--danger);
  border: 1px solid var(--danger);
}

.learn-continue-subtext {
  font-size: 13px;
  color: var(--text-secondary);
}

.learn-continue-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.learn-continue-block {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm, 8px);
  padding: 16px;
}

.learn-continue-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.learn-continue-text {
  font-size: 16px;
  line-height: 1.45;
  color: var(--text-primary);
  font-weight: 500;
  word-break: break-word;
}

.learn-continue-prompt {
  font-size: 18px;
  font-weight: 600;
}

.learn-continue-screen.is-correct .learn-continue-answer {
  color: var(--success);
  font-weight: 600;
}

.learn-continue-block.your-answer-block {
  background: var(--danger-dim);
  border-color: rgba(239, 68, 68, 0.35);
}

.learn-continue-your-answer {
  color: var(--danger);
  text-decoration: line-through;
}

.learn-continue-override-wrap {
  margin-top: 4px;
}

.learn-continue-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  margin-top: 4px;
  flex-wrap: wrap;
}

.learn-continue-cue {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.learn-continue-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent-glow);
  animation: learnPulse 1.8s infinite;
}

@keyframes learnPulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 var(--accent-glow);
  }
  70% {
    transform: scale(1.15);
    box-shadow: 0 0 0 8px transparent;
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 transparent;
  }
}

.learn-continue-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.learn-continue-key-hint {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.18);
  color: inherit;
  font-family: var(--font-mono, monospace);
  font-weight: 500;
}

html[data-ui-mode="cyberpunk"] .learn-continue-card {
  clip-path: polygon(
    0 0,
    calc(100% - 14px) 0,
    100% 14px,
    100% 100%,
    14px 100%,
    0 calc(100% - 14px)
  );
  border-radius: 0 !important;
  border: 2px solid var(--border-color-strong, #00f0ff) !important;
}

html[data-ui-mode="cyberpunk"] .learn-continue-block,
html[data-ui-mode="cyberpunk"] .learn-continue-badge,
html[data-ui-mode="cyberpunk"] .learn-continue-btn,
html[data-ui-mode="cyberpunk"] .learn-continue-key-hint {
  border-radius: 0 !important;
}

html[data-ui-mode="cyberpunk"] .learn-continue-badge {
  font-family: var(--font-mono, monospace) !important;
  letter-spacing: 0.08em;
}

html[data-ui-mode="cyberpunk"] .learn-continue-cue {
  font-family: var(--font-mono, monospace) !important;
  font-size: 12px;
}
.learn-summary-card {
  text-align: center;
  background: var(--bg-surface);
  border-radius: 12px;
  padding: 32px;
}
.summary-score-big {
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
}
/* --- Study Mode: Practice Test Execution --- */
.test-question-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 12px;
}
.test-results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.test-grade-num {
  font-size: 36px;
  font-weight: 700;
}
.test-letter-badge {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  background: var(--bg-surface-elevated);
}
.test-review-card {
  padding: 16px;
  border-radius: 10px;
  margin-bottom: 8px;
  border: 1px solid var(--border-color);
}
.test-review-card.is-correct {
  border-left: 3px solid var(--success);
}
.test-review-card.is-wrong {
  border-left: 3px solid var(--danger);
}
/* --- Study Mode: Match Game --- */
.match-top-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 8px;
}
.match-meta-label {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-right: 4px;
}
.match-clock {
  font-size: 24px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.match-penalty-badge {
  background: var(--danger-dim);
  color: var(--danger);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  opacity: 0;
  transition: opacity 200ms;
}
.match-penalty-badge.show {
  opacity: 1;
}
.match-tiles-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.countdown-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.85);
  align-items: center;
  justify-content: center;
  display: none;
}
.countdown-inner {
  text-align: center;
}
.countdown-label {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.countdown-number {
  font-size: 80px;
  font-weight: 700;
  color: var(--accent);
}

/* --- Match Completion & Confetti --- */
.match-completion-card {
  max-width: 480px;
  width: 92%;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px 28px;
  text-align: center;
  position: relative;
  z-index: 360;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.45);
  animation: matchCardPop 280ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes matchCardPop {
  0% {
    transform: scale(0.92) translateY(12px);
    opacity: 0;
  }
  100% {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.match-completion-header {
  margin-bottom: 20px;
}

.match-completion-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono, monospace);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 4px 12px;
  border-radius: 9999px;
  margin-bottom: 12px;
}

.match-completion-title {
  font-size: clamp(22px, 3.2vw, 28px);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin: 0 0 6px 0;
}

.match-completion-deck-name {
  font-size: 13.5px;
  color: var(--text-secondary);
  max-width: 380px;
  margin: 0 auto;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.match-completion-record-banner {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  margin-bottom: 20px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 600;
  background: var(--success-dim, rgba(16, 185, 129, 0.15));
  color: var(--success, #10b981);
  border: 1px solid var(--success, #10b981);
}

.match-completion-record-banner.show {
  display: flex;
}

.match-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.match-stat-box {
  padding: 16px 14px;
  border-radius: 12px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.match-stat-box.primary-time {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.match-stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.match-stat-val {
  font-family: var(--font-display, inherit);
  font-size: clamp(26px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.match-stat-box.primary-time .match-stat-val {
  color: var(--accent);
}

.match-stat-sub {
  font-size: 11.5px;
  color: var(--text-muted);
}

.match-completion-meta {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}

.match-meta-pill {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.match-completion-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.match-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 20px;
  font-size: 14.5px;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
  border: none;
  transition:
    opacity 150ms ease,
    transform 150ms ease;
}

.match-action-btn:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.match-action-btn-secondary {
  width: 100%;
  padding: 10px 18px;
  font-size: 13.5px;
  font-weight: 500;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 150ms ease;
}

.match-action-btn-secondary:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
  border-color: var(--border-color-strong);
}

#matchConfettiCanvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 350;
}

html[data-ui-mode="cyberpunk"] .match-completion-card {
  clip-path: polygon(
    0 0,
    calc(100% - 14px) 0,
    100% 14px,
    100% 100%,
    14px 100%,
    0 calc(100% - 14px)
  );
  border-radius: 0 !important;
  border: 2px solid var(--border-color-strong) !important;
}
html[data-ui-mode="cyberpunk"] .match-stat-box,
html[data-ui-mode="cyberpunk"] .match-action-btn,
html[data-ui-mode="cyberpunk"] .match-action-btn-secondary,
html[data-ui-mode="cyberpunk"] .match-meta-pill {
  border-radius: 0 !important;
}
/* --- Study Mode: Gravity Arcade --- */
.gravity-hud {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-surface);
  border-radius: 10px;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 600;
}
.gravity-stage {
  width: 100%;
  height: 400px;
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}
.gravity-input-wrap {
  margin-top: 12px;
}
.gravity-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 16px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-family);
}
.gravity-asteroid {
  position: absolute;
  padding: 8px 14px;
  background: var(--bg-surface-elevated);
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  max-width: 260px;
  white-space: normal;
  line-height: 1.35;
  word-break: break-word;
  transition:
    border-color 0.15s ease,
    background 0.15s ease;
}
.gravity-asteroid.prompt-term {
  border-left: 3px solid var(--accent);
}
.gravity-asteroid.prompt-definition {
  border-left: 3px solid #38bdf8;
}
.gravity-asteroid.destroyed {
  animation: explode 400ms forwards;
}
.life-pip {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  margin: 0 2px;
}
.life-pip.alive {
  background: var(--success);
}
.life-pip.lost {
  background: var(--danger-dim);
}
/* --- Settings View & Account Modal --- */
.settings-view {
  max-width: 680px;
  margin: 0 auto;
}
.settings-group {
  margin-bottom: 32px;
}
.settings-group-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}
.settings-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 4px 0;
  overflow: visible;
}
.settings-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
}
.settings-item:not(:last-child) {
  border-bottom: 1px solid var(--border-color);
}
.settings-label {
  font-size: 14px;
  font-weight: 500;
}
.settings-sublabel {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}
.settings-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}
.settings-hint {
  padding: 12px 20px;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
}
.theme-options-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.theme-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-radius: 10px;
  cursor: pointer;
  width: 100%;
  text-align: left;
}
.theme-card:hover {
  border-color: var(--border-active, var(--accent));
}
.theme-card.active {
  border-color: var(--border-active, var(--accent));
  background: var(--accent-dim);
}
.theme-card-left {
  display: flex;
  align-items: center;
  gap: 14px;
}
.theme-palette-preview {
  display: flex;
  gap: 4px;
}
.palette-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
}
.theme-card-name {
  font-size: 14px;
  font-weight: 600;
}
.theme-check {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  display: none;
}
.theme-card.active .theme-check {
  display: inline;
}
.music-player-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0;
}
.music-player-info {
  flex: 1;
}
.music-track-title {
  font-size: 14px;
  font-weight: 600;
}
.music-status-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.music-track-status {
  font-size: 12px;
}
.music-visualizer {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 14px;
}
.viz-bar {
  width: 3px;
  background: var(--accent);
  border-radius: 1px;
  animation-play-state: paused;
}
.viz-bar:nth-child(1) {
  height: 6px;
  animation: vizPulse 0.8s ease-in-out infinite;
}
.viz-bar:nth-child(2) {
  height: 10px;
  animation: vizPulse 0.6s ease-in-out infinite 0.1s;
}
.viz-bar:nth-child(3) {
  height: 8px;
  animation: vizPulse 0.7s ease-in-out infinite 0.2s;
}
.viz-bar:nth-child(4) {
  height: 4px;
  animation: vizPulse 0.9s ease-in-out infinite 0.3s;
}
.music-visualizer.is-active .viz-bar {
  animation-play-state: running;
}
.volume-slider-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.custom-range {
  -webkit-appearance: none;
  width: 130px;
  height: 6px;
  margin: 0;
  border-radius: 999px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  outline: none;
  display: block;
}
.custom-range::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
}
.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}
.volume-val-label {
  font-size: 12px;
  line-height: 1;
  color: var(--text-secondary);
  min-width: 36px;
}
.editor-form {
  max-width: 720px;
}
.editor-cards-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.editor-card-row {
  display: flex;
  gap: 8px;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
}
.term-input,
.def-input {
  flex: 1;
}
.move-up-btn,
.move-down-btn,
.remove-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
}
.move-up-btn:hover,
.move-down-btn:hover {
  color: var(--text-primary);
}
.remove-btn:hover {
  color: var(--danger);
}
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 200ms,
    visibility 200ms;
}
.modal-overlay.show {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
}
.modal-card {
  border-radius: 16px;
  padding: 28px;
  max-width: 480px;
  width: 90%;
}
.modal-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}
.modal-btn {
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  background: var(--bg-surface-elevated);
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}
.modal-btn.confirm {
  background: var(--accent);
}
.modal-btn.danger {
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
  background: transparent;
}
.modal-btn.danger:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: #ef4444;
}
.account-modal-card {
  max-width: 440px;
  width: 92%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 24px 20px;
}
.account-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.account-modal-header h3 {
  margin-bottom: 0;
  font-size: 18px;
  font-weight: 700;
}
.modal-close-x {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 150ms ease;
}
.modal-close-x:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
}
@media (max-width: 400px) {
  .account-modal-card {
    padding: 20px 14px;
    width: 95%;
  }
}
.avatar-color-picker {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 6px;
}
.color-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    transform 150ms,
    border-color 150ms;
}
.color-swatch:hover {
  transform: scale(1.15);
}
.color-swatch.active {
  border-color: #ffffff;
  box-shadow: 0 0 0 2px var(--accent);
}
/* --- Account Sync & Profile Card --- */
.account-offline-notice {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.45;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.account-offline-notice svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}
.profile-card-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}
.profile-avatar-large {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}
.profile-meta-info {
  flex: 1;
  min-width: 0;
}
.profile-display-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.profile-username {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}
.profile-sync-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  background: var(--bg-surface-elevated);
  padding: 3px 9px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}
.sync-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  display: inline-block;
}
.sync-dot.offline {
  background: #f59e0b;
}
.sync-dot.syncing {
  background: var(--accent);
  animation: pulseSync 1.2s infinite;
}
.profile-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}
.profile-stat-box {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.profile-stat-box .stat-number {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}
.profile-stat-box .stat-label {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.sync-section-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 8px;
}
.sync-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.sync-section-title {
  font-size: 14px;
  font-weight: 600;
}
.sync-section-desc {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}
.sync-code-group {
  margin-top: 10px;
}
.sync-key-display {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 6px;
}
.sync-key-display code {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 8px 10px;
  border-radius: 6px;
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}
.sync-hint {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 1.4;
}
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  padding: 10px 24px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: all 200ms ease;
  z-index: 500;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.study-empty-state {
  text-align: center;
  padding: 40px 20px;
}
.study-empty-icon {
  color: var(--text-muted);
  margin-bottom: 16px;
}
.study-empty-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.study-empty-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  max-width: 380px;
  margin-inline: auto;
}
body.fullscreen-study-mode .top-nav,
body.fullscreen-study-mode .nav-avatar {
  display: none !important;
}
body.fullscreen-study-mode .view-container {
  max-width: 100%;
  padding: 20px;
}
/* --- Print Stylesheet --- */
@media print {
  .top-nav,
  .toast,
  .modal-overlay,
  .back-link,
  .study-subnav,
  .action-btn,
  .action-btn-sm,
  .upload-btn {
    display: none !important;
  }
  body {
    background: white;
    color: black;
  }
  .view-container {
    max-width: 100%;
  }
}
.mobile-tab-bar {
  display: none !important;
}
/* --- Responsive Layout: Mobile & Tablet --- */
@media (max-width: 768px) {
  html,
  body,
  #app {
    overflow-x: hidden;
    width: 100%;
    min-height: 100%;
    min-height: -webkit-fill-available;
    min-height: 100dvh;
  }
  .view-container {
    padding-top: 16px;
    padding-bottom: 24px;
    padding-left: max(22px, calc(env(safe-area-inset-left, 0px) + 10px));
    padding-right: max(22px, calc(env(safe-area-inset-right, 0px) + 10px));
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .top-nav {
    padding-left: max(10px, env(safe-area-inset-left, 0px));
    padding-right: max(10px, env(safe-area-inset-right, 0px));
    gap: 6px;
  }
  .sidebar-toggle-btn {
    margin-right: 0px;
    width: 34px;
    height: 34px;
    min-width: 34px;
  }
  .nav-links {
    display: none;
  }
  .nav-avatar {
    display: flex;
    width: 30px;
    height: 30px;
    min-width: 30px;
    flex-shrink: 0;
  }
  .nav-brand {
    gap: 6px;
    flex-shrink: 0;
  }
  .nav-brand span {
    font-size: 16px;
  }
  .nav-right {
    margin-left: auto;
    gap: 4px;
    flex-shrink: 0;
  }
  .nav-create-btn-text {
    display: none !important;
  }
  .nav-create-btn {
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: var(--radius-sm, 8px) !important;
  }
  .nav-create-btn svg {
    width: 20px !important;
    height: 20px !important;
    stroke-width: 2.8 !important;
    margin: 0 !important;
    display: block !important;
  }
  .nav-icon-btn {
    width: 34px;
    height: 34px;
    min-width: 34px;
  }
  .nav-upgrade-btn {
    padding: 4px 8px;
    font-size: 11px;
  }
  .mobile-tab-bar {
    display: none !important;
  }
  .ad-consent-banner {
    bottom: max(10px, env(safe-area-inset-bottom, 0px)) !important;
    z-index: 210 !important;
    padding: 10px 14px max(10px, env(safe-area-inset-bottom, 0px)) !important;
    border-radius: 12px 12px 0 0 !important;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.25) !important;
  }
  .ad-consent-content {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 8px !important;
  }
  .ad-consent-text-group {
    min-width: 0 !important;
  }
  .ad-consent-title {
    font-size: 13px !important;
  }
  .ad-consent-desc {
    font-size: 11px !important;
  }
  .ad-consent-actions {
    display: flex !important;
    justify-content: flex-end !important;
    gap: 8px !important;
    width: 100% !important;
  }
  .ad-consent-actions .action-btn-sm {
    min-height: 36px;
    padding: 6px 14px;
    font-size: 12px;
  }
  .main-content {
    padding-bottom: max(
      32px,
      calc(24px + env(safe-area-inset-bottom, 0px))
    ) !important;
    -webkit-overflow-scrolling: touch;
  }
  body.fullscreen-study-mode .mobile-tab-bar,
  body.fullscreen-study-mode .ad-consent-banner {
    display: none !important;
  }
  .home-hero {
    padding: 16px 0 16px;
  }
  .home-title {
    font-size: 22px;
  }
  .home-actions-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .home-action-card {
    padding: 14px 16px;
    gap: 12px;
  }
  .deck-grid,
  .deck-list-container {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .deck-item {
    padding: 16px;
  }
  .study-subnav {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    margin-bottom: 12px;
  }
  .subnav-left {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    width: 100%;
    flex-wrap: wrap;
  }
  .subnav-left .deck-pill {
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .deck-detail-header {
    margin-bottom: 20px;
  }
  .deck-detail-title {
    font-size: 22px;
    line-height: 1.25;
  }
  .deck-detail-toolbar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-top: 14px;
  }
  .toolbar-btn {
    width: 100%;
    justify-content: center;
    padding: 9px 12px;
    font-size: 13px;
    box-sizing: border-box;
  }
  .study-mode-card {
    padding: 14px 16px;
    gap: 12px;
  }
  .mode-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
  }
  .mode-title {
    font-size: 15px;
  }
  .mode-desc {
    font-size: 12px;
  }
  .fc-stage-box {
    min-height: 250px;
    margin: 12px auto;
    width: 100%;
    box-sizing: border-box;
  }
  .fc-card {
    min-height: 250px;
    width: 100%;
    height: 100%;
    padding: 0 !important;
    margin: 0 !important;
    box-sizing: border-box;
    transform-origin: center center;
    -webkit-transform-origin: center center;
  }
  .fc-side {
    min-height: 250px;
    padding: 16px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    transform-origin: center center;
    -webkit-transform-origin: center center;
  }
  .fc-center-text {
    font-size: 18px;
    line-height: 1.4;
  }
  .fc-nav-controls {
    gap: 12px;
    margin-top: 14px;
  }
  .fc-btn {
    padding: 9px 18px;
    font-size: 13px;
  }
  .fc-shortcuts-note {
    display: none;
  }
  .editor-card-row {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 12px;
  }
  .editor-card-row .term-input,
  .editor-card-row .def-input {
    width: 100%;
    box-sizing: border-box;
  }
  .match-tiles-matrix {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .settings-grid-two {
    grid-template-columns: 1fr;
  }
  .settings-card {
    padding: 0 16px;
  }
  .settings-card .music-player-top {
    padding-left: 16px;
    padding-right: 16px;
  }
  input[type="text"],
  input[type="search"],
  input[type="email"],
  input[type="password"],
  input[type="number"],
  select,
  textarea {
    font-size: 16px !important;
  }
  .nav-icon-btn {
    min-width: 40px;
    min-height: 40px;
  }
  .top-nav .nav-icon-btn,
  .top-nav .sidebar-toggle-btn {
    min-width: 34px;
    min-height: 34px;
    width: 34px;
    height: 34px;
  }
  .nav-avatar {
    min-width: 36px;
    min-height: 36px;
  }
  .top-nav .nav-avatar {
    min-width: 30px;
    min-height: 30px;
    width: 30px;
    height: 30px;
  }
  .nav-user-dropdown {
    right: 0 !important;
    max-width: calc(100vw - 24px) !important;
  }
  .deck-menu-trigger {
    min-width: 40px;
    min-height: 40px;
  }
  .action-btn-sm,
  .folder-chip,
  .toolbar-btn {
    min-height: 38px;
  }
  .action-btn,
  .btn-primary,
  .fc-btn {
    min-height: 44px;
  }
  .modal-card {
    width: calc(100% - 24px) !important;
    max-width: 480px !important;
    max-height: calc(100dvh - 32px) !important;
    overflow-y: auto !important;
    padding: 18px !important;
    box-sizing: border-box !important;
    -webkit-overflow-scrolling: touch;
  }
  .modal-actions {
    flex-wrap: wrap;
    gap: 8px;
  }
  .modal-btn {
    min-height: 42px;
  }
  .mc-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .mc-choice-btn {
    min-height: 52px;
    padding: 12px 16px;
    font-size: 15px;
    width: 100%;
    text-align: left;
    display: flex;
    align-items: center;
  }
  .test-panel-card {
    padding: 16px;
  }
  .test-question-card {
    padding: 16px;
    margin-bottom: 14px;
  }
}
@media (max-width: 480px) {
  .top-nav #tabSettings {
    display: none !important;
  }
  .match-tiles-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 769px) and (max-width: 1024px) {
  .mobile-tab-bar {
    display: none !important;
  }
  .top-nav {
    padding-left: 20px;
    padding-right: 20px;
    gap: 12px;
  }
  .nav-links {
    display: flex !important;
    margin-left: 12px;
    gap: 4px;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    flex-shrink: 1;
  }
  .nav-links::-webkit-scrollbar {
    display: none;
  }
  .nav-link {
    padding: 6px 11px;
    font-size: 13px;
    white-space: nowrap;
    flex-shrink: 0;
    min-height: 38px;
  }
  .view-container {
    padding: 20px 24px 32px;
    max-width: 960px;
    box-sizing: border-box;
  }
  .main-content {
    padding-bottom: 96px !important;
    -webkit-overflow-scrolling: touch;
  }
  .home-actions-grid,
  .deck-grid,
  .deck-list-container,
  .study-modes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .settings-grid-two {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .match-tiles-matrix {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  .matrix-tile {
    min-height: 95px;
    font-size: 14px;
    padding: 12px;
  }
  .fc-stage-box {
    min-height: 320px;
    max-width: 700px;
    margin: 16px auto;
  }
  .fc-side {
    min-height: 320px;
    padding: 24px;
  }
  .fc-center-text {
    font-size: 22px;
  }
  .fc-btn {
    min-height: 44px;
    padding: 10px 24px;
    font-size: 14px;
  }
  .mc-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .mc-choice-btn {
    min-height: 52px;
    font-size: 14px;
  }
  .test-panel-card {
    max-width: 720px;
    margin: 0 auto;
    padding: 24px;
  }
  button,
  a,
  input,
  select,
  .folder-chip,
  .action-btn-sm {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }
  .ad-consent-banner {
    bottom: 0;
    z-index: 250;
    padding: 12px 20px;
  }
}
/* --- Animations & Touch Form Controls --- */
@keyframes tab-fade-out {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}
@keyframes tab-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.tab-fade-out {
  animation: tab-fade-out 140ms ease forwards;
}
.tab-fade-in {
  animation: tab-fade-in 220ms ease forwards;
}
@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-6px);
  }
  40% {
    transform: translateX(6px);
  }
  60% {
    transform: translateX(-4px);
  }
  80% {
    transform: translateX(4px);
  }
}
@keyframes explode {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}
@keyframes vizPulse {
  0%,
  100% {
    transform: scaleY(0.4);
  }
  50% {
    transform: scaleY(1);
  }
}
input,
button,
textarea,
select {
  font-family: inherit !important;
  touch-action: manipulation;
}
input,
textarea,
select {
  font-size: 14px;
}
input[type="checkbox"] {
  -webkit-appearance: none !important;
  appearance: none !important;
  width: 19px;
  height: 19px;
  border: 1.5px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-surface-elevated);
  cursor: pointer;
  position: relative;
  outline: none;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
  margin: 0;
}
input[type="checkbox"]:hover {
  border-color: var(--accent);
}
input[type="checkbox"]:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}
input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1.5px;
  width: 5px;
  height: 9px;
  border: solid var(--accent-contrast, #ffffff);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
input[type="checkbox"]:focus-visible {
  box-shadow: 0 0 0 2px var(--accent-dim);
}
.upload-btn {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition:
    opacity 0.15s ease,
    background-color 0.15s ease,
    transform 0.15s ease;
}
.upload-btn:hover {
  transform: translateY(-1px);
}
.upload-btn:active {
  transform: translateY(0);
  opacity: 0.7;
}
.ad-placeholder-content {
  width: 100%;
  max-width: 728px;
  min-height: 48px;
  background: var(--bg-surface);
  border: 1px dashed var(--border-color);
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2px;
  padding: 6px 12px;
}
.is-hidden-native-select {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
}
/* --- Custom Selects & Stacking Context --- */
.settings-group:has(.custom-select-wrapper.is-open),
.settings-group.has-open-select {
  position: relative !important;
  z-index: 50 !important;
}
.settings-card:has(.custom-select-wrapper.is-open),
.settings-card.has-open-select {
  position: relative !important;
  z-index: 60 !important;
}
.settings-item:has(.custom-select-wrapper.is-open),
.settings-item.has-open-select {
  position: relative !important;
  z-index: 70 !important;
}
.settings-control-cell:has(.custom-select-wrapper.is-open),
.settings-control-cell.has-open-select {
  position: relative !important;
  z-index: 80 !important;
}

.custom-select-wrapper {
  position: relative;
  width: 100%;
  user-select: none;
}
.custom-select-wrapper.is-open {
  position: relative !important;
  z-index: 100 !important;
}
.custom-select-trigger {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  outline: none;
  font-size: 13.5px;
  font-weight: 500;
  text-align: left;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}
.custom-select-trigger:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}
.custom-select-trigger:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--accent);
}
.custom-select-wrapper.is-open .custom-select-trigger {
  border-color: var(--accent);
  background: var(--bg-surface-elevated);
  box-shadow: 0 0 0 2px var(--accent-dim);
}
.custom-select-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}
.custom-select-chevron {
  color: var(--text-secondary);
  transition:
    transform 0.24s cubic-bezier(0.16, 1, 0.3, 1),
    color 0.18s ease;
  flex-shrink: 0;
}
.custom-select-wrapper.is-open .custom-select-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}
.custom-select-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow:
    0 16px 36px -4px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.04);
  z-index: 300 !important;
  max-height: 270px;
  overflow-y: auto;
  padding: 6px;
  display: none;
  opacity: 0;
  transform: translateY(-8px) scale(0.97);
  transform-origin: top center;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.custom-select-wrapper.is-open .custom-select-menu {
  display: block;
  animation: dropdownPopIn 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.custom-select-wrapper.open-upward .custom-select-menu {
  top: auto;
  bottom: calc(100% + 6px);
  transform-origin: bottom center;
}
.custom-select-wrapper[data-for-select="settingsFontSelect"] {
  width: auto;
  min-width: 220px;
}
.custom-select-wrapper[data-for-select="settingsFontSelect"]
  .custom-select-trigger {
  min-width: 220px;
  padding: 8px 12px;
  font-size: 13px;
}
.custom-select-wrapper[data-for-select="settingsFontSelect"]
  .custom-select-menu {
  right: 0;
  left: auto;
  min-width: 240px;
  width: max-content;
  max-width: min(320px, calc(100vw - 48px));
  z-index: 300 !important;
}
@keyframes dropdownPopIn {
  0% {
    opacity: 0;
    transform: translateY(-8px) scale(0.97);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
.custom-select-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  transition:
    background-color 0.14s ease,
    color 0.14s ease,
    transform 0.14s ease;
  margin-bottom: 2px;
  user-select: none;
}
.custom-select-option:last-child {
  margin-bottom: 0;
}
.custom-option-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition:
    color 0.14s ease,
    transform 0.14s ease;
}
.custom-select-option:hover,
.custom-select-option.is-highlighted {
  background: var(--accent-dim);
  color: var(--accent);
}
.custom-select-option:hover .custom-option-icon-wrap,
.custom-select-option.is-highlighted .custom-option-icon-wrap {
  color: var(--accent);
  transform: scale(1.08);
}
.custom-select-option.is-selected {
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
}
.custom-select-option.is-selected .custom-option-icon-wrap {
  color: var(--accent);
}
.custom-option-text {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.custom-option-check {
  display: none;
  color: var(--accent);
  flex-shrink: 0;
  margin-left: 8px;
}
.custom-select-option.is-selected .custom-option-check {
  display: block;
  animation: checkPopIn 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}
.custom-select-separator {
  height: 1px;
  background: var(--border-color);
  margin: 6px 4px;
}
@keyframes checkPopIn {
  0% {
    transform: scale(0.4);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}
.action-btn:active {
  transform: translateY(0);
  opacity: 0.75;
}
.action-btn-sm:hover {
  background: var(--bg-surface-elevated);
  transform: translateY(-1px);
}
.action-btn-sm.primary {
  background: var(--accent);
  border-color: var(--accent);
}
.action-btn-sm:active {
  transform: translateY(0);
}
.custom-toggle input[type="checkbox"] {
  opacity: 0 !important;
  width: 0 !important;
  height: 0 !important;
  position: absolute !important;
  pointer-events: none;
  margin: 0 !important;
  border: none !important;
}
.custom-toggle input:focus-visible + .toggle-slider {
  box-shadow: 0 0 0 2px var(--accent-dim);
}
input[type="checkbox"].custom-checkbox-input {
  position: absolute !important;
  opacity: 0 !important;
  width: 0 !important;
  height: 0 !important;
  border: 0 !important;
  margin: 0 !important;
  pointer-events: none;
}
.custom-checkbox-box::after {
  content: "";
  width: 4px;
  height: 9px;
  border: solid var(--accent-contrast, #ffffff);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  margin-top: -2px;
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}
.custom-checkbox-input:focus-visible + .custom-checkbox-box {
  box-shadow: 0 0 0 2px var(--accent-dim);
}
@media (min-width: 600px) {
  .settings-grid-two {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}
.folder-chips-scroll::-webkit-scrollbar {
  display: none;
}
.deck-action-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}
.deck-action-primary:active {
  transform: scale(0.97);
}
.deck-action-secondary:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}
.deck-action-secondary:active {
  transform: scale(0.97);
}
.deck-menu-trigger:hover,
.deck-menu-container.is-open .deck-menu-trigger {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--accent);
}
.deck-menu-trigger:active {
  transform: scale(0.96);
}
.popover-element svg {
  color: var(--text-secondary);
  flex-shrink: 0;
  transition:
    color 0.15s ease,
    transform 0.15s ease;
}
.popover-element:hover svg {
  color: var(--accent);
  transform: translateX(1px);
}
.popover-element.is-danger svg {
  color: var(--danger);
}
.popover-element.is-danger:hover {
  background: var(--danger-dim);
  color: var(--danger);
}
.fc-side:hover {
  border-color: var(--accent);
}
.fc-btn:hover:not(:disabled) {
  background: var(--bg-surface-elevated);
  transform: translateY(-1px);
}
.fc-btn:active:not(:disabled) {
  transform: translateY(0);
}
.fc-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
/* --- Fullscreen Study Mode & Pro Elements --- */
body.fullscreen-study-mode {
  overflow: hidden !important;
}
@media (min-width: 600px) {
  .mc-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.mc-choice-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  line-height: 1.4;
  transition:
    border-color 0.15s ease,
    background-color 0.15s ease;
}
.mc-choice-btn:hover {
  border-color: var(--accent);
}
.mc-number {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  width: 20px;
  height: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.mc-choice-btn.correct {
  background: var(--success-dim);
  border-color: var(--success);
}
#learnView .learn-success-glow {
  animation: learn-success-glow 650ms ease-out;
}
@keyframes learn-success-glow {
  0%,
  100% {
    box-shadow: 0 0 0 0 transparent;
  }
  25% {
    box-shadow:
      0 0 0 3px var(--success-dim),
      0 0 18px var(--success);
  }
}
@media (prefers-reduced-motion: reduce) {
  #learnView .learn-success-glow {
    animation: none;
    box-shadow:
      0 0 0 3px var(--success-dim),
      0 0 12px var(--success);
  }
}
.mc-choice-btn.wrong {
  background: var(--danger-dim);
  border-color: var(--danger);
}
.summary-missed-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-surface-elevated);
  border-radius: 6px;
  margin-bottom: 6px;
  font-size: 12px;
  text-align: left;
}
.summary-term {
  font-weight: 600;
}
.summary-def {
  color: var(--text-secondary);
}
.test-q-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.test-q-num {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}
.test-q-badge {
  font-size: 11px;
  background: var(--bg-surface-elevated);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--text-secondary);
}
.test-term-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.test-term-text {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}
.test-tf-definition-box {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 14px;
  margin-bottom: 12px;
}
.test-tf-options,
.test-mc-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.custom-radio-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  font-size: 13.5px;
  transition: all 0.15s ease;
  user-select: none;
}
.custom-radio-card:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.custom-radio-card input[type="radio"] {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  cursor: pointer;
}
.test-written-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.instant-feedback-box {
  margin-top: 10px;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  line-height: 1.4;
}
.instant-feedback-box.correct {
  background: var(--success-dim);
  border: 1px solid var(--success);
  color: var(--success);
  font-weight: 600;
}
.instant-feedback-box.wrong {
  background: var(--danger-dim);
  border: 1px solid var(--danger);
  color: var(--danger);
  font-weight: 600;
}
.mc-letter {
  font-weight: 700;
  color: var(--accent);
  width: 16px;
}
.test-letter-badge.grade-a {
  background: var(--success);
}
.test-letter-badge.grade-b {
  background: var(--accent);
}
.test-letter-badge.grade-c {
  background: var(--warning);
}
.test-letter-badge.grade-d {
  background: #f97316;
}
.test-letter-badge.grade-f {
  background: var(--danger);
}
.test-review-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}
.test-review-tag {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
}
.tag-correct {
  background: var(--success);
  color: #ffffff;
}
.tag-wrong {
  background: var(--danger);
  color: #ffffff;
}
.test-ans-label {
  font-size: 11px;
  color: var(--text-secondary);
  margin-right: 4px;
}
.correct-text {
  color: var(--success);
  font-weight: 600;
}
.wrong-text {
  color: var(--danger);
  font-weight: 600;
}
@media (min-width: 600px) {
  .match-tiles-matrix {
    grid-template-columns: repeat(4, 1fr);
  }
}
.matrix-tile {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  min-height: 90px;
  padding: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  cursor: pointer;
  user-select: none;
  font-size: 12px;
  line-height: 1.4;
  word-break: break-word;
  transition:
    transform 0.1s ease,
    border-color 0.15s ease,
    opacity 0.2s ease;
}
.matrix-tile:hover {
  border-color: var(--accent);
}
.matrix-tile.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
  transform: scale(0.97);
}
.matrix-tile.matched {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.matrix-tile.mismatch {
  border-color: var(--danger);
  background: var(--danger-dim);
}
.match-lobby-meta {
  font-size: 12.5px;
  color: var(--text-secondary);
  margin-top: 8px;
  padding: 10px 14px;
  background: var(--bg-surface-elevated);
  border-radius: 6px;
  border: 1px solid var(--border-color);
}
.countdown-overlay.show {
  display: flex;
}
.countdown-number.pulse-in {
  animation: countdownPulse 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes countdownPulse {
  0% {
    transform: scale(0.3);
    opacity: 0;
  }
  45% {
    transform: scale(1.15);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 0.85;
  }
}
.gravity-asteroid.impact {
  border-color: var(--danger);
  background: var(--danger-dim);
}
.shake {
  animation: shakeAnim 0.25s ease;
}
@keyframes shakeAnim {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-6px);
  }
  75% {
    transform: translateX(6px);
  }
}
.settings-group + .settings-group {
  margin-top: 36px;
}
.settings-item:last-child {
  border-bottom: none;
}
.music-visualizer.is-active .viz-bar:nth-child(1) {
  animation: vizBounce 0.8s ease-in-out infinite alternate;
}
.music-visualizer.is-active .viz-bar:nth-child(2) {
  animation: vizBounce 1.1s ease-in-out infinite alternate 0.2s;
}
.music-visualizer.is-active .viz-bar:nth-child(3) {
  animation: vizBounce 0.7s ease-in-out infinite alternate 0.4s;
}
.music-visualizer.is-active .viz-bar:nth-child(4) {
  animation: vizBounce 0.95s ease-in-out infinite alternate 0.1s;
}
@keyframes vizBounce {
  0% {
    height: 3px;
  }
  100% {
    height: 12px;
  }
}
.music-btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 0;
}
button:not(:disabled):active {
  transform: scale(0.98);
}
.custom-range::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid #ffffff;
}
.row-inputs-group {
  display: flex;
  gap: 8px;
  flex: 1;
}
.row-tools-group {
  display: flex;
  gap: 4px;
}
/* --- Print Stylesheet --- */
@media print {
  .test-review-card {
    border: 1px solid #ccc !important;
    background: none !important;
    page-break-inside: avoid;
  }
}
.action-text,
.mode-info,
.deck-detail-info,
.theme-card-info {
  min-width: 0;
  text-align: left;
}
.deck-detail-info {
  flex: 1;
}
.term-count {
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 6px;
}
*,
*::before,
*::after {
  -webkit-tap-highlight-color: transparent;
  font-family: var(--font-family) !important;
}
.upload-btn.primary {
  background-color: var(--accent);
  border-color: var(--accent);
}
.action-btn:hover {
  transform: translateY(-1px);
}
.action-btn.primary {
  border-color: var(--accent);
}
.form-label {
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.custom-toggle {
  flex-shrink: 0;
  user-select: none;
}
.custom-toggle input {
  position: absolute !important;
  pointer-events: none;
  margin: 0 !important;
  border: none !important;
}
.toggle-slider {
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-surface-elevated);
  border: 1.5px solid var(--border-color);
}
.toggle-slider::before {
  background-color: var(--text-secondary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
}
.custom-toggle input:checked + .toggle-slider {
  background-color: var(--accent);
  border-color: var(--accent);
}
.custom-checkbox-row {
  margin-top: 6px;
}
.custom-checkbox-label {
  color: var(--text-primary);
  user-select: none;
}
.custom-checkbox-box {
  background: var(--bg-surface-elevated);
  flex-shrink: 0;
  position: relative;
}
.custom-checkbox-input:checked + .custom-checkbox-box {
  background-color: var(--accent);
}
.form-input {
  outline: none;
}
.progress-bar-track {
  margin: 10px 0 16px 0;
}
.folder-chips-scroll {
  scrollbar-width: none;
}
.folder-chip {
  gap: 6px;
}
.folder-chip.active {
  font-weight: 600;
}
.folder-delete-x {
  color: var(--text-muted);
  cursor: pointer;
}
.folder-delete-x:hover {
  color: var(--danger);
}
.deck-info {
  min-width: 0;
  padding-right: 12px;
}
.deck-title {
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.deck-subtitle {
  margin-top: 3px;
}
.deck-actions-group {
  flex-shrink: 0;
}
.deck-menu-trigger {
  width: 32px;
  height: 32px;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}
.deck-popover-card {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.deck-menu-container.is-open .deck-popover-card {
  animation: dropdownPopIn 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.popover-list {
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.popover-element {
  font-weight: 500;
  transition: all 0.15s ease;
  user-select: none;
}
.popover-element:hover {
  color: var(--accent);
}
.deck-sub-pill {
  margin-left: 6px;
}
.fc-center-text {
  line-height: 1.45;
  overflow-y: auto;
  max-height: 200px;
  word-break: break-word;
}
.fc-footer-hint {
  letter-spacing: 0.2px;
}
.fc-nav-controls {
  margin-bottom: 12px;
}
.learn-status-bar {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  margin-bottom: 14px;
}
.learn-prompt-label {
  margin-bottom: 4px;
}
.learn-prompt-title {
  line-height: 1.4;
}
.mc-grid {
  margin-bottom: 14px;
}
.written-wrap {
  flex-direction: column;
  margin-bottom: 14px;
}
.written-box {
  outline: none;
}
.learn-feedback.is-correct {
  border: 1px solid var(--success);
}
.learn-feedback.is-wrong {
  border: 1px solid var(--danger);
}
.learn-summary-card {
  border: 1px solid var(--border-color);
}
.summary-score-big {
  margin: 10px 0;
}
.study-empty-state {
  color: var(--text-secondary);
}
.study-empty-icon {
  margin: 0 auto 12px auto;
  display: block;
}
.study-empty-title {
  color: var(--text-primary);
}
.study-empty-desc {
  margin: 0 auto 16px auto;
  line-height: 1.5;
}
.test-results-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}
.test-grade-num {
  color: var(--accent);
}
.test-letter-badge {
  color: #ffffff;
}
.test-review-card.is-correct {
  border-color: var(--success);
  background: var(--success-dim);
}
.test-review-card.is-wrong {
  border-color: var(--danger);
  background: var(--danger-dim);
}
/* --- Study Mode: Match Game --- */
.match-top-status {
  padding: 10px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}
.match-meta-label {
  display: block;
}
.match-penalty-badge {
  margin-left: 6px;
}
.countdown-overlay {
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.countdown-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.countdown-label {
  font-weight: 800;
}
.countdown-number {
  line-height: 1;
  text-shadow: 0 0 30px var(--accent-dim);
}
/* --- Study Mode: Gravity Arcade --- */
.gravity-hud {
  border: 1px solid var(--border-color);
}
.life-pip {
  margin-right: 4px;
}
.gravity-stage {
  margin-bottom: 10px;
}
.gravity-asteroid {
  color: var(--text-primary);
  box-shadow: 0 0 10px var(--accent-dim);
}
.gravity-asteroid.destroyed {
  border-color: var(--success);
  transform: scale(1.3);
  opacity: 0;
  transition: all 0.2s ease;
}
.gravity-input-wrap {
  width: 100%;
}
/* --- Settings View & Account Modal --- */
.settings-view {
  padding-top: 24px;
  padding-bottom: 40px;
  width: 100%;
  box-sizing: border-box;
}
.settings-group {
  display: flex;
  flex-direction: column;
}
.settings-group-title {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding-left: 2px;
  line-height: 1.4;
}
.theme-card {
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}
.theme-card:hover {
  transform: translateY(-1px);
}
.theme-card-name {
  color: var(--text-primary);
}
.theme-check {
  opacity: 0;
  transition: opacity 0.15s ease;
}
.theme-card.active .theme-check {
  opacity: 1;
}
.settings-card {
  display: flex;
  flex-direction: column;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.settings-item {
  border-bottom: 1px solid var(--border-color);
  font-size: 13.5px;
  gap: 16px;
}
.settings-label {
  color: var(--text-primary);
}
.settings-hint {
  line-height: 1.5;
}
.settings-item .settings-hint {
  padding: 0;
  margin-top: 2px;
  border-top: 0;
}
.music-player-top {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-color);
  gap: 16px;
}
.music-player-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.music-track-title {
  color: var(--text-primary);
}
.music-track-status {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}
.music-visualizer {
  width: 15px;
}
.viz-bar {
  height: 3px;
  background-color: var(--accent);
  transition:
    height 0.2s ease,
    opacity 0.2s ease;
  opacity: 0.35;
}
.music-visualizer.is-active .viz-bar {
  opacity: 1;
}
.volume-val-label {
  font-weight: 600;
  text-align: right;
}
.custom-range {
  appearance: none;
}
.custom-range::-webkit-slider-thumb {
  appearance: none;
  border: 2px solid #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
}
.editor-form {
  margin-top: 8px;
}
.modal-overlay {
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px;
}
.modal-btn.confirm {
  border-color: var(--accent);
}
.toast {
  border: 1px solid var(--border-color);
}
.settings-card .music-player-top {
  padding-left: 20px;
  padding-right: 20px;
}
.nav-upgrade-btn {
  padding: 6px 12px;
  border-radius: var(--radius-sm, 6px);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: var(--font-size-xs, 11px);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-base, 180ms ease);
}
.nav-upgrade-btn:hover {
  border-color: var(--warning);
  color: var(--warning);
  transform: translateY(-1px);
}
.pro-sparkle-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warning);
  display: inline-block;
  box-shadow: 0 0 6px var(--warning);
}
.home-hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-4, 16px);
}
.home-plan-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: var(--radius-full, 9999px);
  font-size: var(--font-size-xs, 11px);
  font-weight: 600;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.usage-meter-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 10px);
  padding: var(--space-4, 16px);
  margin-bottom: var(--space-5, 20px);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-2, 8px);
}
.usage-meter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.usage-meter-info {
  display: flex;
  align-items: center;
  gap: var(--space-2, 8px);
}
.usage-meter-title {
  font-size: var(--font-size-sm, 13px);
  font-weight: 600;
  color: var(--text-primary);
}
.usage-meter-count {
  font-size: var(--font-size-xs, 11px);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full, 9999px);
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
}
.usage-meter-action-btn {
  background: var(--bg-surface-elevated);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-sm, 8px);
  color: var(--accent);
  font-size: var(--font-size-xs, 11px);
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 5px 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
  text-decoration: none;
  transition: all var(--transition-fast);
}
.usage-meter-action-btn:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
}
.usage-meter-track {
  width: 100%;
  height: 6px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-full, 9999px);
  overflow: hidden;
  position: relative;
}
.usage-meter-fill {
  height: 100%;
  background: var(--accent);
  border-radius: var(--radius-full, 9999px);
  transition:
    width 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    background-color var(--transition-fast);
}
.usage-meter-fill.is-danger {
  background: var(--danger);
}
.usage-meter-hint {
  font-size: var(--font-size-xs, 11px);
  color: var(--text-muted);
}
.library-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3, 12px);
}
/* --- Entitlement Badges, Promo Cards & Usage Meters --- */
.pro-promo-card {
  background:
    linear-gradient(
      135deg,
      rgba(245, 158, 11, 0.08) 0%,
      rgba(139, 92, 246, 0.08) 100%
    ),
    var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 10px);
  padding: var(--space-5, 20px);
  margin-bottom: var(--space-5, 20px);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.pro-promo-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: var(--radius-sm, 6px);
  background: var(--pro-badge-bg);
  color: var(--pro-badge-text);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: var(--space-2, 8px);
}
.pro-promo-title {
  font-size: var(--font-size-md, 17px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1, 4px);
}
.pro-promo-desc {
  font-size: var(--font-size-sm, 13px);
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: var(--space-4, 16px);
  max-width: 580px;
}
.pro-promo-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
}
.pro-promo-btn {
  padding: 8px 18px;
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-sm, 8px);
  font-size: var(--font-size-sm, 13px);
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  box-shadow: none;
  transition:
    transform var(--transition-fast),
    filter var(--transition-fast);
}
.pro-promo-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}
.pro-promo-price {
  font-size: var(--font-size-xs, 11px);
  color: var(--text-muted);
}
.ad-slot-container {
  width: 100%;
  margin-top: var(--space-6, 24px);
  margin-bottom: var(--space-6, 24px);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md, 10px);
  background: var(--bg-surface);
  min-height: 70px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
  overflow: hidden;
}
.ad-slot-badge {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  padding: 4px 8px;
  border-bottom: 1px dashed var(--border-color);
  align-self: flex-start;
  user-select: none;
}
.ad-slot-body {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
}
.ad-slot-placeholder {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 12px;
}
.ad-slot-brand {
  font-size: var(--font-size-xs, 11px);
  font-weight: 700;
  color: var(--text-primary);
  flex-shrink: 0;
}
.ad-slot-text {
  font-size: 12px;
  color: var(--text-secondary);
  flex: 1;
  text-align: left;
}
.ad-slot-cta {
  padding: 5px 14px;
  border-radius: var(--radius-sm, 8px);
  background: var(--bg-surface-elevated);
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-size: var(--font-size-xs, 11px);
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: none;
  transition: all var(--transition-fast);
}
.ad-slot-cta:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
}
@media (max-width: 600px) {
  .ad-slot-placeholder {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .ad-slot-cta {
    align-self: flex-end;
  }
}
.pro-chip {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--pro-badge-bg);
  color: var(--pro-badge-text);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-left: 6px;
  vertical-align: middle;
}
.locked-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.plan-status-card {
  padding: var(--space-4, 16px);
  background: var(--bg-surface);
  border-radius: var(--radius-md, 10px);
}
.plan-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4, 16px);
  padding-bottom: var(--space-3, 12px);
  border-bottom: 1px solid var(--border-color);
}
.plan-card-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}
.plan-card-name {
  font-size: var(--font-size-md, 17px);
  font-weight: 700;
  color: var(--text-primary);
}
.plan-card-status-pill {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full, 9999px);
  background: var(--success-dim);
  color: var(--success);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.plan-upgrade-action-btn {
  padding: 6px 14px;
  border-radius: var(--radius-sm, 6px);
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
  border: none;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    filter var(--transition-fast);
}
.plan-upgrade-action-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}
.plan-card-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: var(--space-2, 8px);
}
.plan-stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.plan-stat-label {
  font-size: var(--font-size-xs, 11px);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.plan-stat-value {
  font-size: var(--font-size-sm, 13px);
  font-weight: 600;
  color: var(--text-primary);
}
.upgrade-modal-card {
  max-width: 480px;
  width: 100%;
  padding: 24px;
  border-radius: var(--radius-xl, 18px);
  box-sizing: border-box;
}
.upgrade-modal-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.upgrade-tag {
  padding: 4px 10px;
  border-radius: var(--radius-sm, 6px);
  background: var(--pro-badge-bg, rgba(245, 158, 11, 0.15));
  color: var(--pro-badge-text, #f59e0b);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.upgrade-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}
.upgrade-modal-subtitle,
.upgrade-subtitle {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 20px;
}
.pricing-options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
@media (max-width: 540px) {
  .pricing-options-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}
.plan-option {
  position: relative;
  background: var(--bg-surface-elevated, #1a1a1a);
  border: 1.5px solid var(--border-color, #2a2a2a);
  border-radius: var(--radius-lg, 12px);
  padding: 16px 14px 14px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  -webkit-user-select: none;
  box-sizing: border-box;
}
.plan-option:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}
.plan-option.selected {
  border-color: var(--accent);
  background: var(--accent-dim, rgba(59, 130, 246, 0.12));
  box-shadow: 0 0 0 1px var(--accent);
}
.plan-badge {
  position: absolute;
  top: -10px;
  right: 12px;
  background: var(--brand-primary, #3b82f6);
  color: #ffffff;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border-radius: 999px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
}
.plan-option-header {
  display: flex;
  align-items: center;
  gap: 8px;
}
.plan-radio-circle {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border-color-strong, #555);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}
.plan-option.selected .plan-radio-circle {
  border-color: var(--accent);
}
.plan-radio-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: transparent;
  transition: all 0.2s ease;
}
.plan-option.selected .plan-radio-dot {
  background: var(--accent);
}
.plan-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.plan-price {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
}
.plan-price small {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}
.plan-sub {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.35;
}
.upgrade-features-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--bg-surface-elevated, #161616);
  border-radius: var(--radius-lg, 12px);
  border: 1px solid var(--border-color, #262626);
}
.upgrade-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.feature-check-icon {
  color: var(--success, #10b981);
  flex-shrink: 0;
  margin-top: 2px;
}
.feature-text {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.4;
}
.upgrade-submit-btn {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-md, 10px);
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    filter var(--transition-fast);
}
.upgrade-submit-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}
.upgrade-restore-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  text-decoration: none;
  padding: 0;
}
.google-auth-btn {
  width: 100%;
  padding: 10px 16px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 10px);
  color: var(--text-primary);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all var(--transition-fast);
  margin-bottom: 12px;
}
.google-auth-btn:hover {
  border-color: var(--accent);
  background: var(--bg-surface);
  transform: translateY(-1px);
}
.editor-limit-pill {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 3px 8px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full, 9999px);
}
html.is-pro .ad-slot-container,
body.is-pro .ad-slot-container,
html.is-pro .pro-promo-card,
body.is-pro .pro-promo-card,
html.is-pro #homeProPromoCard,
body.is-pro #homeProPromoCard,
html.is-pro .home-ad-slot,
body.is-pro .home-ad-slot,
html.is-pro .ad-slot,
body.is-pro .ad-slot,
html.is-pro .ad-banner,
body.is-pro .ad-banner,
html.is-pro #adConsentBanner,
body.is-pro #adConsentBanner,
html.is-pro #homeMeterUpgradeBtn,
body.is-pro #homeMeterUpgradeBtn,
html.is-pro #navUpgradeBtn,
body.is-pro #navUpgradeBtn,
html.is-pro .locked-badge,
body.is-pro .locked-badge,
html.is-pro .pro-chip,
body.is-pro .pro-chip,
html.is-pro .usage-meter-action-btn,
body.is-pro .usage-meter-action-btn,
html.is-pro #offlineGateModal,
body.is-pro #offlineGateModal {
  display: none !important;
}
.row-image-preview-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm, 6px);
  background-color: var(--surface-bg, rgba(255, 255, 255, 0.05));
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  overflow: hidden;
  flex-shrink: 0;
}
.row-image-preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.remove-image-btn {
  position: absolute;
  top: 1px;
  right: 1px;
  width: 16px;
  height: 16px;
  background-color: rgba(0, 0, 0, 0.75);
  color: #ffffff;
  border: none;
  border-radius: 50%;
  font-size: 11px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.fc-card-image-wrap {
  margin: 12px auto;
  max-width: 220px;
  max-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md, 8px);
  overflow: hidden;
  background-color: var(--surface-bg, rgba(0, 0, 0, 0.2));
}
.fc-card-image {
  max-width: 100%;
  max-height: 140px;
  object-fit: contain;
  display: block;
}
.playlist-badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: rgba(139, 92, 246, 0.15);
  color: #a78bfa;
  border: 1px solid rgba(139, 92, 246, 0.3);
  text-transform: uppercase;
}
.custom-color-picker {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  cursor: pointer;
  padding: 2px;
}
.custom-color-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}
.custom-color-picker::-webkit-color-swatch {
  border: none;
  border-radius: var(--radius-xs);
}
.playlist-checklist-wrap {
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  padding: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.playlist-deck-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.playlist-deck-item:hover {
  background: var(--bg-surface-elevated);
}
.playlist-deck-item input[type="checkbox"] {
  accent-color: var(--accent);
  width: 18px;
  height: 18px;
  cursor: pointer;
}
.playlist-deck-item-info {
  display: flex;
  flex-direction: column;
  flex: 1;
}
.playlist-deck-item-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}
.playlist-deck-item-count {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}
.ad-consent-banner {
  position: fixed;
  bottom: 0;
  z-index: 250;
  background: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-color);
  box-shadow: var(--shadow-popover);
  animation: slideUpConsent 240ms cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes slideUpConsent {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}
.ad-consent-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.ad-consent-text-group {
  flex: 1;
  min-width: 260px;
}
.ad-consent-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: 2px;
}
.ad-consent-desc {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
}
.ad-consent-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.ad-consent-upgrade-btn {
  background: var(--pro-gradient);
  color: #ffffff !important;
  border: none;
  font-weight: var(--font-weight-semibold);
}
html.is-pro .ad-consent-banner,
body.is-pro .ad-consent-banner {
  display: none !important;
}
/* --- In-Study Floating Navigation Bar --- */
.study-modes-bar {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.study-mode-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  background: transparent;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all 140ms ease;
}
.study-mode-nav-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}
.study-mode-nav-btn.active {
  font-weight: 600;
}
.study-mode-nav-btn svg {
  stroke: currentColor;
  flex-shrink: 0;
}
.error-page-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 64px 20px;
  min-height: calc(100vh - 180px);
  max-width: 680px;
  margin: 0 auto;
}
.error-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: 999px;
  margin-bottom: 16px;
}
.error-title-huge {
  font-size: clamp(48px, 10vw, 84px);
  font-weight: 800;
  line-height: 1;
  color: var(--text-primary);
  margin: 0 0 16px;
  letter-spacing: -0.04em;
}
.error-subtitle {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 10px;
}
.error-description {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 480px;
  margin: 0 0 28px;
}
.error-actions-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}
.error-destinations-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.error-destinations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
  width: 100%;
}
.error-destination-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 14px 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  gap: 8px;
  transition: all 140ms ease;
}
.error-destination-card:hover {
  background: var(--bg-surface-elevated);
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.library-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.io-modal-card {
  max-width: 680px;
  width: 94%;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg, 14px);
  padding: 24px;
  box-shadow: var(--shadow-popover);
  box-sizing: border-box;
}
.io-modal-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.io-modal-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text-primary);
}
.io-meta-row {
  display: flex;
  gap: 12px;
  margin-bottom: 18px;
}
.io-meta-field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.io-meta-field-sm {
  max-width: 220px;
}
.io-meta-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}
.io-input {
  width: 100%;
  box-sizing: border-box;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 8px);
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition-fast, 120ms ease);
}
.io-input:focus {
  border-color: var(--accent);
}
.io-delimiters-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 18px;
  padding: 16px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 10px);
}
@media (max-width: 600px) {
  .io-delimiters-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .io-meta-row {
    flex-direction: column;
  }
  .io-meta-field-sm {
    max-width: 100%;
  }
}
.io-delimiter-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.io-col-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
}
.io-radio-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.io-radio-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}
.io-radio-label input[type="radio"] {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  cursor: pointer;
  margin: 0;
}
.io-custom-wrap {
  display: inline-flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm, 6px);
  padding: 2px 6px;
  margin-left: 4px;
  gap: 6px;
}
.io-custom-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}
.io-custom-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.io-custom-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-mono, monospace);
  font-size: 13px;
  width: 44px;
  padding: 2px;
}
.io-action-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.io-action-status {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.io-action-desc {
  font-size: 13px;
  color: var(--text-secondary);
}
.io-count-badge {
  display: inline-flex;
  align-items: center;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full, 9999px);
  border: 1px solid var(--accent);
}
.io-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: var(--radius-full, 9999px);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast, 120ms ease);
  outline: none;
  font-family: inherit;
  flex-shrink: 0;
  text-decoration: none;
}
.io-action-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast, #ffffff);
}
.io-action-btn.primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}
.io-action-btn.primary:active {
  transform: translateY(0);
  filter: brightness(0.95);
}
.io-content-container {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md, 10px);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.io-content-header {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.io-textarea {
  width: 100%;
  box-sizing: border-box;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-mono, monospace);
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
  min-height: 220px;
}
.io-textarea:focus {
  outline: none;
}
@keyframes skeletonShimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}
.skeleton-line,
.skeleton-pill,
.skeleton-deck-card,
.skeleton-term-row {
  background: linear-gradient(
    90deg,
    var(--bg-surface-elevated, #1c1c1f) 0%,
    var(--border-color, #2c2c30) 50%,
    var(--bg-surface-elevated, #1c1c1f) 100%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.6s infinite ease-in-out;
}
.skeleton-line {
  height: 14px;
  border-radius: var(--radius-sm, 6px);
  margin-bottom: 8px;
}
.skeleton-line:last-child {
  margin-bottom: 0;
}
.skeleton-line.sm {
  height: 10px;
}
.skeleton-line.lg {
  height: 20px;
}
.skeleton-line.w-33 {
  width: 33%;
}
.skeleton-line.w-60 {
  width: 60%;
}
.skeleton-pill {
  height: 28px;
  border-radius: 9999px;
  display: inline-block;
}
@keyframes skeletonFadeIn {
  from {
    opacity: 0;
    transform: translateY(2px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.skeleton-deck-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  width: 100%;
  animation: skeletonFadeIn 0.22s ease-out;
}
.skeleton-deck-card {
  padding: 18px;
  border-radius: var(--radius-lg, 12px);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 120px;
  background: var(--bg-surface);
  box-sizing: border-box;
}
.skeleton-deck-card-top {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.skeleton-deck-card-actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.fc-settings {
  position: relative;
  top: auto;
  right: auto;
  z-index: 30;
  cursor: default;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-wrap: wrap;
}
.fc-settings-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 8px;
  color: var(--text-secondary);
  transition:
    color 150ms ease,
    background 150ms ease,
    border-color 150ms ease,
    transform 150ms ease;
}
.fc-settings-trigger:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
  border-color: var(--accent);
}
.fc-star-trigger .fc-star-icon {
  transition:
    fill 150ms ease,
    stroke 150ms ease,
    transform 150ms ease;
}
.fc-star-trigger:hover {
  color: var(--warning);
  border-color: var(--warning);
}
.fc-star-trigger.starred {
  color: var(--warning);
  border-color: var(--warning);
  background: var(--warning-dim, rgba(245, 158, 11, 0.14));
}
.fc-star-trigger.starred .fc-star-icon {
  fill: currentColor;
}
.fc-star-trigger:active .fc-star-icon {
  transform: scale(0.9);
}
.fc-settings-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 224px;
  max-width: calc(100vw - 48px);
  max-height: min(420px, 60dvh);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 8px;
  display: grid;
  gap: 4px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-surface);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
  z-index: 50;
}
.fc-settings-panel[hidden] {
  display: none;
}
.fc-settings-panel button {
  min-height: 44px;
  text-align: left;
}
#fcStage .fc-top-row {
  padding-right: 0;
  min-height: 28px;
}
.fc-settings button:focus-visible,
.study-view-tools button:focus-visible,
#fcExitFullscreenBtn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.study-view-tools {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.study-view-tools > button {
  min-height: 44px;
  flex-shrink: 0;
}
/* --- Fullscreen Structural Overrides --- */
body.fullscreen-study-mode #app {
  width: 100% !important;
  height: 100dvh !important;
  min-height: 0;
}
body.fullscreen-study-mode .top-nav,
body.fullscreen-study-mode .study-mode-sidebar,
body.fullscreen-study-mode .mobile-tab-bar,
body.fullscreen-study-mode .deck-addon-bar,
body.fullscreen-study-mode .ad-slot-container,
body.fullscreen-study-mode .ad-consent-banner,
body.fullscreen-study-mode #mechaTelemetryBar {
  display: none !important;
}
body.fullscreen-study-mode .main-content {
  min-height: 0;
  height: 100%;
  padding: 0 !important;
  overscroll-behavior: contain;
  overflow-y: auto;
}
body.fullscreen-study-mode
  :is(#flashcardsView, #learnView, #testView, #matchView, #gravityView) {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 1200px !important;
  height: 100%;
  min-height: 0;
  margin-inline: auto;
  box-sizing: border-box;
  padding: max(clamp(28px, 6dvh, 64px), env(safe-area-inset-top))
    max(clamp(32px, 8vw, 120px), env(safe-area-inset-right))
    max(clamp(28px, 6dvh, 64px), env(safe-area-inset-bottom))
    max(clamp(32px, 8vw, 120px), env(safe-area-inset-left));
}
body.fullscreen-study-mode #testView {
  height: auto;
  min-height: 100%;
}
body.fullscreen-study-mode #flashcardsView > .study-back-link {
  display: none;
}
body.fullscreen-study-mode .study-view-tools {
  position: sticky;
  top: 0;
  z-index: 10;
  flex-shrink: 0;
  background: transparent;
  padding-bottom: 8px;
}
body.fullscreen-study-mode .study-view-tools .back-link {
  margin-bottom: 0 !important;
}
body.fullscreen-study-mode
  :is(
    #fcStudyStage,
    #learnSessionStage,
    #matchGameplayPanel,
    #gravityGamePanel
  ):not([style*="display: none"]) {
  display: flex !important;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  max-width: 920px;
  margin-inline: auto;
}
body.fullscreen-study-mode .gravity-hud {
  flex-shrink: 0;
  margin-bottom: 12px;
  width: 100%;
}
body.fullscreen-study-mode .gravity-stage {
  height: auto;
  flex: 1 1 auto;
  min-height: 280px;
  max-height: min(66dvh, 580px);
  width: 100%;
  margin-block: auto;
}
body.fullscreen-study-mode .gravity-input-wrap {
  flex-shrink: 0;
  margin-top: 12px;
  width: 100%;
}
body.fullscreen-study-mode :is(.study-subnav, .match-top-status) {
  flex-shrink: 0;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  width: 100%;
  max-width: 880px;
  margin-inline: auto;
}
body.fullscreen-study-mode .match-top-status {
  max-width: 920px;
}
body.fullscreen-study-mode :is(.study-subnav, .match-top-status) > div {
  flex-wrap: wrap;
  min-width: 0;
}
body.fullscreen-study-mode :is(button, .matrix-tile) {
  min-height: 44px;
}
body.fullscreen-study-mode .deck-pill {
  overflow-wrap: anywhere;
}
body.fullscreen-study-mode .progress-bar-track {
  flex-shrink: 0;
  margin: 4px auto 14px;
  width: 100%;
  max-width: 880px;
}
body.fullscreen-study-mode .fc-stage-box {
  flex: 1 1 auto;
  width: min(100%, 860px);
  max-width: min(82vw, 860px);
  min-height: 240px;
  max-height: min(60dvh, 500px);
  margin: auto;
}
body.fullscreen-study-mode :is(.fc-card, .fc-side) {
  height: 100%;
  min-height: 0;
}
body.fullscreen-study-mode .fc-side {
  padding: clamp(20px, 3vw, 38px);
}
body.fullscreen-study-mode .fc-center-text {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  max-height: none;
  overflow: auto;
  overflow-wrap: anywhere;
  font-size: clamp(20px, 2.4vw, 34px);
  padding: clamp(12px, 2vw, 24px);
}
body.fullscreen-study-mode .fc-card-image-wrap {
  flex-shrink: 1;
  min-height: 0;
  max-height: 28%;
  margin: 6px auto;
}
body.fullscreen-study-mode .fc-card-image {
  max-height: 100%;
}
body.fullscreen-study-mode .fc-nav-controls {
  flex-shrink: 0;
  margin-top: 16px;
  width: 100%;
  max-width: 860px;
  margin-inline: auto;
}
body.fullscreen-study-mode .fc-shortcuts-note {
  margin-top: 8px;
  width: 100%;
  max-width: 860px;
  margin-inline: auto;
}
body.fullscreen-study-mode .learn-status-bar {
  margin: 0 auto 12px;
  flex-shrink: 0;
  padding: 10px 16px;
  gap: 16px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 880px;
}
body.fullscreen-study-mode
  #learnQuestionContainer:not([style*="display: none"]) {
  display: flex !important;
  flex-direction: column;
  justify-content: center;
  flex: 1 1 auto;
  width: 100%;
  max-width: 880px;
  margin: auto;
}
body.fullscreen-study-mode #learnContinueScreen:not([style*="display: none"]) {
  display: flex !important;
  flex-direction: column;
  justify-content: center;
  flex: 1 1 auto;
  width: 100%;
  max-width: 880px;
  margin: auto;
}
body.fullscreen-study-mode .learn-prompt-box {
  flex: 0 1 auto;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin-bottom: 16px;
  padding: clamp(18px, 2.8vw, 34px);
}
body.fullscreen-study-mode .learn-prompt-title {
  font-size: clamp(20px, 2.3vw, 32px);
  overflow-wrap: anywhere;
}
body.fullscreen-study-mode .mc-grid {
  flex: 0 0 auto;
  gap: 12px;
  margin-bottom: 0;
}
body.fullscreen-study-mode .mc-choice-btn {
  font-size: clamp(14px, 1.35vw, 18px);
  overflow-wrap: anywhere;
  padding: 14px 18px;
}
body.fullscreen-study-mode .learn-feedback {
  margin-top: 12px;
}
body.fullscreen-study-mode .written-wrap {
  flex-wrap: wrap;
}
body.fullscreen-study-mode .written-box {
  min-width: 0;
}
body.fullscreen-study-mode #testExamPanel,
body.fullscreen-study-mode #testSetupPanel,
body.fullscreen-study-mode #testResultsPanel {
  width: 100%;
  max-width: 880px;
  margin-inline: auto;
}
body.fullscreen-study-mode #testQuestionsContainer {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
body.fullscreen-study-mode #testQuestionsContainer > * {
  min-width: 0;
  margin-bottom: 0;
  overflow-wrap: anywhere;
}
body.fullscreen-study-mode .match-tiles-matrix {
  flex: 1 1 auto;
  min-height: 0;
  max-height: min(66dvh, 580px);
  width: 100%;
  margin: auto;
  grid-auto-rows: minmax(56px, 1fr);
  gap: clamp(8px, 1.2vw, 16px);
  padding-bottom: 2px;
}
body.fullscreen-study-mode .matrix-tile {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 56px;
  padding: clamp(8px, 1.5vw, 20px);
  font-size: clamp(13px, 1.5vw, 20px);
  overflow: auto;
}
@media (max-width: 767px) {
  body.fullscreen-study-mode
    :is(#flashcardsView, #learnView, #testView, #matchView, #gravityView) {
    padding: max(18px, env(safe-area-inset-top))
      max(18px, env(safe-area-inset-right))
      max(18px, env(safe-area-inset-bottom))
      max(18px, env(safe-area-inset-left));
  }
  body.fullscreen-study-mode .fc-stage-box {
    max-width: 100%;
    max-height: min(56dvh, 420px);
    min-height: 210px;
  }
}
@media (max-height: 520px) {
  body.fullscreen-study-mode
    :is(#flashcardsView, #learnView, #testView, #matchView, #gravityView) {
    padding-top: max(12px, env(safe-area-inset-top));
    padding-bottom: max(12px, env(safe-area-inset-bottom));
  }
  body.fullscreen-study-mode .fc-shortcuts-note {
    display: none;
  }
  body.fullscreen-study-mode .fc-stage-box {
    min-height: 140px;
    max-height: 68dvh;
  }
  body.fullscreen-study-mode .fc-footer-hint {
    display: none;
  }
  body.fullscreen-study-mode .match-top-status {
    padding: 6px 10px;
  }
  body.fullscreen-study-mode .match-tiles-matrix {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  body.fullscreen-study-mode .learn-prompt-box {
    padding: 12px;
    margin-bottom: 8px;
    min-height: 90px;
  }
  body.fullscreen-study-mode .mc-choice-btn {
    padding: 8px 12px;
  }
}
.study-mode-card .mode-badge:empty {
  display: none;
}
[hidden] {
  display: none !important;
}
a:focus-visible,
button:focus-visible,
[role="button"]:focus-visible,
.deck-item .deck-info:focus-visible,
.study-mode-nav-btn:focus-visible,
.accent-swatch:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .fc-card {
    transition: none !important;
  }
}
.nav-links {
  gap: 4px;
}
.nav-link {
  position: relative;
  border-radius: var(--radius-md);
}
.nav-link.active {
  color: var(--accent);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -9px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}
/* --- In-Study Floating Navigation Bar --- */
.study-modes-bar {
  gap: 4px;
  padding: 4px;
  margin-bottom: 18px;
  scrollbar-width: none;
}
.study-modes-bar::-webkit-scrollbar {
  display: none;
}
.study-mode-nav-btn {
  flex: 1 1 0;
  justify-content: center;
  min-height: 40px;
  --mode-color: var(--accent);
}
.study-mode-nav-btn[data-mode="flashcards"] {
  --mode-color: var(--accent);
}
.study-mode-nav-btn[data-mode="learn"] {
  --mode-color: var(--success);
}
.study-mode-nav-btn[data-mode="test"] {
  --mode-color: var(--warning);
}
.study-mode-nav-btn[data-mode="match"] {
  --mode-color: var(--accent-2, var(--accent));
}
.study-mode-nav-btn[data-mode="gravity"] {
  --mode-color: var(--accent-3, var(--accent));
}
.study-mode-nav-btn svg {
  color: var(--mode-color);
}
.study-mode-nav-btn.active {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--mode-color) 16%, transparent);
  box-shadow: inset 0 0 0 1px
    color-mix(in srgb, var(--mode-color) 45%, transparent);
}
@media (max-width: 640px) {
  .study-modes-bar {
    gap: 2px;
  }
  .study-mode-nav-btn {
    flex-direction: column;
    gap: 2px;
    padding: 6px 4px;
    font-size: 11px;
    min-height: 48px;
  }
}
.mode-icon-flashcards {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
}
.mode-icon-learn {
  background: var(--success-dim);
  color: var(--success);
}
.mode-icon-test {
  background: var(--warning-dim);
  color: var(--warning);
}
.mode-icon-match {
  background: color-mix(
    in srgb,
    var(--accent-2, var(--accent)) 16%,
    transparent
  );
  color: var(--accent-2, var(--accent));
}
.mode-icon-gravity {
  background: color-mix(
    in srgb,
    var(--accent-3, var(--accent)) 16%,
    transparent
  );
  color: var(--accent-3, var(--accent));
}
.continue-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  margin-bottom: 28px;
  background:
    linear-gradient(135deg, var(--accent-dim), transparent 70%),
    var(--bg-surface);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border-color));
  border-radius: var(--radius-lg);
  transition:
    transform var(--transition-base),
    border-color var(--transition-base);
}
.continue-card:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}
.continue-card-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.continue-eyebrow {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}
.continue-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.continue-meta {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}
.continue-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
}
.home-plan-section .usage-meter-card,
.home-plan-section .pro-promo-card {
  margin-bottom: 12px;
}
.home-plan-section .pro-promo-card {
  padding: 16px 18px;
}
.home-plan-section .pro-promo-title {
  font-size: var(--font-size-md);
}
.home-plan-section .pro-promo-desc {
  font-size: var(--font-size-sm);
  margin-bottom: 12px;
}
.deck-item .deck-subtitle {
  color: var(--text-secondary);
}
.deck-item:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border-color));
}
.ad-consent-banner {
  max-width: 520px;
  left: 12px;
  right: 12px;
  margin: 0 auto;
  padding: 12px 14px;
}
.ad-consent-banner .ad-consent-desc {
  font-size: var(--font-size-sm);
}
.auth-advanced-toggle {
  display: block;
  width: 100%;
  margin: 4px 0 12px;
  padding: 8px 0;
  background: none;
  border: none;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  text-align: center;
  cursor: pointer;
}
.auth-advanced-toggle:hover {
  color: var(--text-primary);
}
.auth-advanced-toggle::after {
  content: " \25BE";
}
.auth-advanced-toggle.is-open::after {
  content: " \25B4";
}
.settings-item-stack {
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
}
.accent-swatch-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
  max-width: 360px;
}
.accent-swatch {
  aspect-ratio: 1;
  width: 100%;
  min-width: 28px;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background: var(--swatch);
  box-shadow: 0 0 0 1px var(--border-color);
  cursor: pointer;
  transition: transform var(--transition-fast);
}
.accent-swatch:hover {
  transform: scale(1.1);
}
.accent-swatch.active {
  border-color: var(--bg-surface);
  box-shadow: 0 0 0 2px var(--text-primary);
}
body:has(:is(#flashcardsView, #learnView, #testView, #matchView, #gravityView))
  .ad-consent-banner {
  display: none !important;
}
@keyframes formErrorShake {
  0%,
  100% {
    transform: translateX(0);
  }
  20%,
  60% {
    transform: translateX(-4px);
  }
  40%,
  80% {
    transform: translateX(4px);
  }
}
.form-input.is-invalid,
.form-input[aria-invalid="true"],
.form-field.has-error .form-input,
.form-input:user-invalid {
  border-color: var(--danger) !important;
  background: color-mix(in srgb, var(--danger) 6%, var(--bg-surface));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 18%, transparent);
  animation: formErrorShake 260ms ease;
}
.form-input.is-invalid:focus,
.form-input[aria-invalid="true"]:focus,
.form-field.has-error .form-input:focus {
  border-color: var(--danger) !important;
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 26%, transparent);
}
.editor-card-row.is-invalid {
  border-color: var(--danger) !important;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--danger) 18%, transparent);
}
.form-error-msg {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--danger);
}
.form-error-msg[hidden] {
  display: none !important;
}
/* --- Thank You & Legal Pages --- */
.thankyou-page-card {
  max-width: 680px;
  margin: 32px auto;
  padding: 40px 32px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.thankyou-icon-badge {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--success-dim, rgba(16, 185, 129, 0.14));
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.thankyou-title {
  font-size: clamp(24px, 3.5vw, 34px);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin: 8px 0 12px;
}
.thankyou-subtitle {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 28px;
}
.thankyou-perks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  width: 100%;
  text-align: left;
  margin-bottom: 28px;
}
.thankyou-perk-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}
.thankyou-perk-item svg {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.thankyou-perk-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.thankyou-perk-desc {
  font-size: 12px;
  line-height: 1.45;
  color: var(--text-secondary);
}
.legal-doc-container {
  max-width: 780px;
  margin: 0 auto;
  padding-bottom: 48px;
}
.legal-header {
  margin-bottom: 24px;
}
.legal-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin: 8px 0 6px;
}
.legal-updated {
  font-size: 13px;
  color: var(--text-muted);
}
.legal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: clamp(20px, 3.5vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.legal-section h2 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.legal-section p,
.legal-section li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
}
.legal-section p + p {
  margin-top: 10px;
}
.legal-section ul {
  margin-top: 8px;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.legal-inline-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 500;
}
.legal-inline-link:hover {
  filter: brightness(1.15);
}
/* --- Standard Mode Defaults (Non-Cyberpunk) --- */
html:not([data-ui-mode="cyberpunk"]) .mecha-hero-top-meta,
html:not([data-ui-mode="cyberpunk"]) .sakofian-holo-footer,
html:not([data-ui-mode="cyberpunk"]) .target-corner,
html:not([data-ui-mode="cyberpunk"]) .target-crosshair,
html:not([data-ui-mode="cyberpunk"]) .mecha-deck-serial,
html:not([data-ui-mode="cyberpunk"]) #mechaTelemetryBar,
html:not([data-ui-mode="cyberpunk"]) #mechaCockpitBackdrop {
  display: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .home-hero,
html:not([data-ui-mode="cyberpunk"]) .home-hero.mecha-hero-frame,
html:not([data-ui-mode="cyberpunk"]) .continue-card,
html:not([data-ui-mode="cyberpunk"]) .home-action-card,
html:not([data-ui-mode="cyberpunk"]) .mecha-stepper-card,
html:not([data-ui-mode="cyberpunk"]) .deck-item,
html:not([data-ui-mode="cyberpunk"]) .home-deck-card,
html:not([data-ui-mode="cyberpunk"]) .usage-meter-card,
html:not([data-ui-mode="cyberpunk"]) .settings-card,
html:not([data-ui-mode="cyberpunk"]) .theme-card,
html:not([data-ui-mode="cyberpunk"]) .primary-theme-btn,
html:not([data-ui-mode="cyberpunk"]) .plan-status-card,
html:not([data-ui-mode="cyberpunk"]) .test-panel-card,
html:not([data-ui-mode="cyberpunk"]) .fc-card,
html:not([data-ui-mode="cyberpunk"]) .test-question-card,
html:not([data-ui-mode="cyberpunk"]) .editor-card-row,
html:not([data-ui-mode="cyberpunk"]) .modal-card,
html:not([data-ui-mode="cyberpunk"]) .legal-card,
html:not([data-ui-mode="cyberpunk"]) .thankyou-page-card,
html:not([data-ui-mode="cyberpunk"]) .ad-consent-banner,
html:not([data-ui-mode="cyberpunk"]) .ad-slot-container {
  border-radius: var(--radius-lg, 14px) !important;
  box-shadow: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .home-hero:hover,
html:not([data-ui-mode="cyberpunk"]) .continue-card:hover,
html:not([data-ui-mode="cyberpunk"]) .home-action-card:hover,
html:not([data-ui-mode="cyberpunk"]) .mecha-stepper-card:hover,
html:not([data-ui-mode="cyberpunk"]) .deck-item:hover,
html:not([data-ui-mode="cyberpunk"]) .home-deck-card:hover,
html:not([data-ui-mode="cyberpunk"]) .settings-card:hover,
html:not([data-ui-mode="cyberpunk"]) .theme-card:hover,
html:not([data-ui-mode="cyberpunk"]) .primary-theme-btn:hover {
  box-shadow: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .continue-card {
  box-shadow: none !important;
  margin-bottom: 24px !important;
}
html:not([data-ui-mode="cyberpunk"]) button:not(.nav-avatar),
html:not([data-ui-mode="cyberpunk"]) .continue-cta,
html:not([data-ui-mode="cyberpunk"]) .deck-action-primary,
html:not([data-ui-mode="cyberpunk"]) .deck-action-secondary,
html:not([data-ui-mode="cyberpunk"]) .usage-meter-action-btn,
html:not([data-ui-mode="cyberpunk"]) .pro-promo-btn,
html:not([data-ui-mode="cyberpunk"]) .ad-slot-cta,
html:not([data-ui-mode="cyberpunk"]) .nav-create-btn,
html:not([data-ui-mode="cyberpunk"]) .nav-upgrade-btn,
html:not([data-ui-mode="cyberpunk"]) .section-link,
html:not([data-ui-mode="cyberpunk"]) .home-plan-badge,
html:not([data-ui-mode="cyberpunk"]) .action-btn-sm,
html:not([data-ui-mode="cyberpunk"]) .action-btn,
html:not([data-ui-mode="cyberpunk"]) .btn-primary,
html:not([data-ui-mode="cyberpunk"]) .ad-consent-upgrade-btn {
  clip-path: none !important;
  border-radius: var(--radius-sm, 8px) !important;
  box-shadow: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .nav-avatar {
  border-radius: 50% !important;
}
html:not([data-ui-mode="cyberpunk"]) button:hover,
html:not([data-ui-mode="cyberpunk"]) .continue-cta:hover,
html:not([data-ui-mode="cyberpunk"]) .deck-action-primary:hover,
html:not([data-ui-mode="cyberpunk"]) .deck-action-secondary:hover,
html:not([data-ui-mode="cyberpunk"]) .usage-meter-action-btn:hover,
html:not([data-ui-mode="cyberpunk"]) .pro-promo-btn:hover,
html:not([data-ui-mode="cyberpunk"]) .ad-slot-cta:hover,
html:not([data-ui-mode="cyberpunk"]) .action-btn:hover,
html:not([data-ui-mode="cyberpunk"]) .action-btn-sm:hover,
html:not([data-ui-mode="cyberpunk"]) .btn-primary:hover {
  box-shadow: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .continue-cta {
  border: 1px solid var(--accent) !important;
}
html:not([data-ui-mode="cyberpunk"]) .top-nav *,
html:not([data-ui-mode="cyberpunk"]) .nav-brand span,
html:not([data-ui-mode="cyberpunk"]) .nav-link,
html:not([data-ui-mode="cyberpunk"]) .nav-create-btn,
html:not([data-ui-mode="cyberpunk"]) .nav-create-btn-text,
html:not([data-ui-mode="cyberpunk"]) .nav-upgrade-btn,
html:not([data-ui-mode="cyberpunk"]) .home-title,
html:not([data-ui-mode="cyberpunk"]) .home-plan-badge,
html:not([data-ui-mode="cyberpunk"]) .section-title,
html:not([data-ui-mode="cyberpunk"]) .section-link,
html:not([data-ui-mode="cyberpunk"]) .continue-eyebrow,
html:not([data-ui-mode="cyberpunk"]) .continue-title,
html:not([data-ui-mode="cyberpunk"]) .continue-meta,
html:not([data-ui-mode="cyberpunk"]) .continue-cta,
html:not([data-ui-mode="cyberpunk"]) .home-action-card .action-desc,
html:not([data-ui-mode="cyberpunk"]) .mecha-stepper-card .action-desc,
html:not([data-ui-mode="cyberpunk"]) .deck-title,
html:not([data-ui-mode="cyberpunk"]) .home-deck-title,
html:not([data-ui-mode="cyberpunk"]) .deck-subtitle,
html:not([data-ui-mode="cyberpunk"]) .home-deck-meta,
html:not([data-ui-mode="cyberpunk"]) .deck-action-primary,
html:not([data-ui-mode="cyberpunk"]) .deck-action-secondary,
html:not([data-ui-mode="cyberpunk"]) .usage-meter-title,
html:not([data-ui-mode="cyberpunk"]) .usage-meter-count,
html:not([data-ui-mode="cyberpunk"]) .usage-meter-action-btn,
html:not([data-ui-mode="cyberpunk"]) .usage-meter-hint,
html:not([data-ui-mode="cyberpunk"]) .pro-promo-badge,
html:not([data-ui-mode="cyberpunk"]) .pro-promo-title,
html:not([data-ui-mode="cyberpunk"]) .pro-promo-desc,
html:not([data-ui-mode="cyberpunk"]) .pro-promo-price,
html:not([data-ui-mode="cyberpunk"]) .pro-promo-btn,
html:not([data-ui-mode="cyberpunk"]) .ad-slot-badge,
html:not([data-ui-mode="cyberpunk"]) .ad-slot-brand,
html:not([data-ui-mode="cyberpunk"]) .ad-slot-text,
html:not([data-ui-mode="cyberpunk"]) .ad-slot-cta,
html:not([data-ui-mode="cyberpunk"]) .plan-card-status-pill,
html:not([data-ui-mode="cyberpunk"]) .plan-stat-label,
html:not([data-ui-mode="cyberpunk"]) .plan-stat-value,
html:not([data-ui-mode="cyberpunk"]) .settings-group-title,
html:not([data-ui-mode="cyberpunk"]) .primary-theme-btn-title,
html:not([data-ui-mode="cyberpunk"]) .theme-card-name,
html:not([data-ui-mode="cyberpunk"]) .theme-check,
html:not([data-ui-mode="cyberpunk"]) .mobile-tab-item,
html:not([data-ui-mode="cyberpunk"]) .form-label,
html:not([data-ui-mode="cyberpunk"]) .action-btn,
html:not([data-ui-mode="cyberpunk"]) .action-btn-sm,
html:not([data-ui-mode="cyberpunk"]) .btn-primary,
html:not([data-ui-mode="cyberpunk"]) .upload-btn,
html:not([data-ui-mode="cyberpunk"]) .modal-btn,
html:not([data-ui-mode="cyberpunk"]) .study-mode-nav-btn,
html:not([data-ui-mode="cyberpunk"]) .folder-chip,
html:not([data-ui-mode="cyberpunk"]) .chip-add-btn,
html:not([data-ui-mode="cyberpunk"]) .test-q-num,
html:not([data-ui-mode="cyberpunk"]) .test-term-label,
html:not([data-ui-mode="cyberpunk"]) .test-review-tag,
html:not([data-ui-mode="cyberpunk"]) .learn-prompt-label,
html:not([data-ui-mode="cyberpunk"]) .match-meta-label,
html:not([data-ui-mode="cyberpunk"]) .back-link,
html:not([data-ui-mode="cyberpunk"]) .study-back-link {
  text-transform: none !important;
}
html:not([data-ui-mode="cyberpunk"]) #quickActionStudy .action-title,
html:not([data-ui-mode="cyberpunk"]) #quickActionCreate .action-title,
html:not([data-ui-mode="cyberpunk"]) .home-action-card .action-title {
  text-transform: none !important;
  font-family: var(--font-family) !important;
  font-weight: 600 !important;
  letter-spacing: normal !important;
}
/* --- Cyberpunk / Sakofian Tactical UI Mode --- */
html[data-ui-mode="cyberpunk"] *,
html[data-ui-mode="cyberpunk"] *::before,
html[data-ui-mode="cyberpunk"] *::after,
html[data-ui-mode="cyberpunk"] button,
html[data-ui-mode="cyberpunk"] input,
html[data-ui-mode="cyberpunk"] select,
html[data-ui-mode="cyberpunk"] textarea,
html[data-ui-mode="cyberpunk"] .top-nav,
html[data-ui-mode="cyberpunk"] .nav-link,
html[data-ui-mode="cyberpunk"] .nav-icon-btn,
html[data-ui-mode="cyberpunk"] .nav-create-btn,
html[data-ui-mode="cyberpunk"] .nav-upgrade-btn,
html[data-ui-mode="cyberpunk"] .nav-avatar,
html[data-ui-mode="cyberpunk"] .nav-user-dropdown,
html[data-ui-mode="cyberpunk"] .nav-dropdown-item,
html[data-ui-mode="cyberpunk"] .home-hero,
html[data-ui-mode="cyberpunk"] .home-hero.mecha-hero-frame,
html[data-ui-mode="cyberpunk"] .home-action-card,
html[data-ui-mode="cyberpunk"] .deck-item,
html[data-ui-mode="cyberpunk"] .deck-action-primary,
html[data-ui-mode="cyberpunk"] .deck-action-secondary,
html[data-ui-mode="cyberpunk"] .deck-menu-trigger,
html[data-ui-mode="cyberpunk"] .deck-popover-card,
html[data-ui-mode="cyberpunk"] .folder-chip,
html[data-ui-mode="cyberpunk"] .chip-add-btn,
html[data-ui-mode="cyberpunk"] .search-input,
html[data-ui-mode="cyberpunk"] .form-input,
html[data-ui-mode="cyberpunk"] .action-btn,
html[data-ui-mode="cyberpunk"] .action-btn-sm,
html[data-ui-mode="cyberpunk"] .btn-primary,
html[data-ui-mode="cyberpunk"] .upload-btn,
html[data-ui-mode="cyberpunk"] .modal-card,
html[data-ui-mode="cyberpunk"] .modal-btn,
html[data-ui-mode="cyberpunk"] .settings-card,
html[data-ui-mode="cyberpunk"] .theme-card,
html[data-ui-mode="cyberpunk"] .plan-status-card,
html[data-ui-mode="cyberpunk"] .usage-meter-card,
html[data-ui-mode="cyberpunk"] .usage-meter-track,
html[data-ui-mode="cyberpunk"] .usage-meter-fill,
html[data-ui-mode="cyberpunk"] .pro-promo-card,
html[data-ui-mode="cyberpunk"] .ad-slot-container,
html[data-ui-mode="cyberpunk"] .study-modes-bar,
html[data-ui-mode="cyberpunk"] .study-mode-nav-btn,
html[data-ui-mode="cyberpunk"] .test-panel-card,
html[data-ui-mode="cyberpunk"] .fc-card,
html[data-ui-mode="cyberpunk"] .fc-btn,
html[data-ui-mode="cyberpunk"] .test-question-card,
html[data-ui-mode="cyberpunk"] .editor-card-row,
html[data-ui-mode="cyberpunk"] .toast,
html[data-ui-mode="cyberpunk"] .custom-select-trigger,
html[data-ui-mode="cyberpunk"] .custom-select-option,
html[data-ui-mode="cyberpunk"] .thankyou-page-card,
html[data-ui-mode="cyberpunk"] .legal-card {
  border-radius: 0px !important;
}
html[data-ui-mode="cyberpunk"] #app {
  position: relative;
  background-color: var(--bg-primary);
  background-image:
    linear-gradient(
      to right,
      var(--mecha-grid-line, rgba(30, 53, 255, 0.07)) 1px,
      transparent 1px
    ),
    linear-gradient(
      to bottom,
      var(--mecha-grid-line, rgba(30, 53, 255, 0.07)) 1px,
      transparent 1px
    ),
    linear-gradient(
      to right,
      var(--mecha-grid-major, rgba(30, 53, 255, 0.14)) 1px,
      transparent 1px
    ),
    linear-gradient(
      to bottom,
      var(--mecha-grid-major, rgba(30, 53, 255, 0.14)) 1px,
      transparent 1px
    );
  background-size:
    32px 32px,
    32px 32px,
    160px 160px,
    160px 160px;
}
.mecha-cockpit-backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  color: var(--accent);
}
.mecha-orbital-svg {
  width: 100%;
  height: 100%;
  display: block;
}
.main-content {
  position: relative;
  z-index: 2;
}
html[data-ui-mode="cyberpunk"] .top-nav {
  background: var(--bg-surface) !important;
  border-bottom: 2px solid var(--border-color) !important;
  box-shadow: none !important;
  position: sticky;
  top: 0;
  z-index: 110;
}
html[data-ui-mode="cyberpunk"] .nav-brand span#appHeaderTitle {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 17px;
  color: var(--text-primary);
}
html[data-ui-mode="cyberpunk"] .nav-link {
  font-family: var(--font-mono) !important;
  font-size: 12px !important;
  font-weight: 700 !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1.5px solid transparent !important;
  padding: 6px 14px !important;
}
html[data-ui-mode="cyberpunk"] .nav-link.active {
  background: var(--accent) !important;
  color: var(--accent-contrast) !important;
  border-color: var(--border-color) !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .nav-create-btn {
  background: var(--accent) !important;
  color: var(--accent-contrast) !important;
  font-family: var(--font-mono) !important;
  font-size: 12px !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1.5px solid var(--border-color) !important;
  clip-path: none !important;
  border-radius: 0px !important;
  box-shadow: none !important;
  padding: 7px 16px !important;
}
html[data-ui-mode="cyberpunk"] .nav-upgrade-btn {
  font-family: var(--font-mono) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1.5px solid var(--accent) !important;
  background: var(--bg-surface) !important;
  color: var(--text-primary) !important;
  border-radius: 0px !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .nav-icon-btn,
html[data-ui-mode="cyberpunk"] .nav-avatar {
  border: 1.5px solid var(--border-color) !important;
  background: var(--bg-surface) !important;
  color: var(--text-primary) !important;
  border-radius: 0px !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .sidebar-toggle-btn:hover {
  border-color: var(--accent) !important;
  box-shadow: none !important;
  color: var(--accent) !important;
}
html[data-ui-mode="cyberpunk"] .sidebar-toggle-btn:active {
  box-shadow: none !important;
  transform: none !important;
}
.mecha-telemetry-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 18px;
  background: var(--bg-surface);
  border-bottom: 2px solid var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  position: relative;
  z-index: 105;
  overflow: hidden;
}
.mecha-telemetry-bar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--mecha-holo-pastel);
}
.mecha-telemetry-left,
.mecha-telemetry-center {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}
.mecha-telemetry-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.sakofian-tri-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  width: 28px;
}
.sakofian-tri-bars i {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--mecha-holo-pastel);
}
.sakofian-slashes {
  color: var(--text-primary);
  font-weight: 900;
  letter-spacing: -1px;
}
.telemetry-mono-tag {
  color: var(--text-primary);
  font-weight: 800;
}
.conduit-line-inline {
  color: var(--accent);
  flex-shrink: 0;
}
.telemetry-kanji-tag {
  color: var(--accent);
  font-weight: 800;
}
@media (max-width: 900px) {
  .mecha-telemetry-center {
    display: none;
  }
}
@media (max-width: 600px) {
  .mecha-telemetry-bar {
    padding: 4px 12px;
    font-size: 9px;
  }
}
.mecha-target-box,
.mecha-hero-frame {
  position: relative;
}
.target-corner {
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: var(--accent);
  border-style: solid;
  pointer-events: none;
  z-index: 3;
}
.target-corner.tl {
  top: -2px;
  left: -2px;
  border-width: 3px 0 0 3px;
}
.target-corner.tr {
  top: -2px;
  right: -2px;
  border-width: 3px 3px 0 0;
}
.target-corner.bl {
  bottom: -2px;
  left: -2px;
  border-width: 0 0 3px 3px;
}
.target-corner.br {
  bottom: -2px;
  right: -2px;
  border-width: 0 3px 3px 0;
}
.target-crosshair {
  position: absolute;
  top: 8px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 900;
  color: var(--accent);
  pointer-events: none;
  user-select: none;
  transition: transform var(--transition-fast);
}
.home-hero.mecha-hero-frame {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  box-shadow: 4px 4px 0px var(--accent);
  border-radius: var(--radius-lg, 14px);
  padding: 22px 26px 18px !important;
  margin-top: 8px;
  margin-bottom: 28px;
  display: flex !important;
  flex-direction: column !important;
  align-items: stretch !important;
  gap: 18px !important;
}
.mecha-hero-top-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1.5px solid var(--border-color);
  flex-wrap: wrap;
}
.sakofian-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.reticle-box {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 900;
  color: var(--text-primary);
  border: 2px solid var(--text-primary);
  padding: 4px 7px;
  line-height: 1;
}
.sakofian-lockup-titles {
  display: flex;
  flex-direction: column;
  line-height: 0.95;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 0.14em;
}
.ps-bold {
  font-size: 16px;
  color: var(--text-primary);
}
.ps-outline {
  font-size: 16px;
  color: transparent;
  -webkit-text-stroke: 1.25px var(--text-primary);
}
.sakofian-spec-label,
.mecha-deck-serial {
  display: none !important;
}
.home-hero-main-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
html[data-ui-mode="cyberpunk"] .home-title {
  font-family: var(--font-display) !important;
  font-size: clamp(26px, 4vw, 38px) !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em !important;
  line-height: 1.08 !important;
  color: var(--text-primary);
  position: relative;
}
html[data-ui-mode="cyberpunk"] .home-title[data-ghost]::after {
  content: attr(data-ghost);
  display: block;
  font-family: var(--font-display);
  font-size: 0.58em;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
  opacity: 0.55;
  margin-top: 2px;
  pointer-events: none;
}
.home-hero-right-panel {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
html[data-ui-mode="cyberpunk"] .home-plan-badge {
  font-family: var(--font-mono) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px !important;
  border: 1.5px solid var(--accent) !important;
  background: var(--accent-dim) !important;
  color: var(--text-primary) !important;
}
.sakofian-holo-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
.ps-holo-bars {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 96px;
  flex-shrink: 0;
}
.ps-holo-bars span {
  display: block;
  height: 3px;
  background: var(--mecha-holo-pastel);
  border: 0.5px solid rgba(10, 11, 16, 0.25);
}
.ps-holo-bars span:nth-child(2) {
  width: 82%;
}
.ps-holo-bars span:nth-child(3) {
  width: 68%;
}
.ps-holo-slashes {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: -1px;
}
.ps-holo-line {
  flex: 1;
  height: 2px;
  background: var(--text-primary);
}
.ps-holo-close {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 900;
  color: var(--text-primary);
  border: 1.5px solid var(--text-primary);
  padding: 0 5px;
  line-height: 1.2;
}
.home-hero.mecha-hero-frame.is-compact {
  border-radius: var(--radius-lg, 14px);
  padding: 16px 20px 14px !important;
  margin-top: 0 !important;
  margin-bottom: 24px !important;
  gap: 12px !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: space-between !important;
}
html[data-ui-mode="cyberpunk"] .home-hero.mecha-hero-frame.is-compact {
  box-shadow: 4px 4px 0px var(--accent) !important;
}
html:not([data-ui-mode="cyberpunk"]) .home-hero.mecha-hero-frame.is-compact {
  box-shadow: none !important;
}
.home-hero.mecha-hero-frame.is-compact .mecha-hero-top-meta {
  padding-bottom: 8px;
}
.home-hero.mecha-hero-frame.is-compact .home-title {
  font-size: clamp(20px, 2.8vw, 30px) !important;
}
.home-hero.mecha-hero-frame.is-compact .sakofian-holo-footer {
  margin-top: 4px;
}
@media (max-width: 900px) {
  .home-hero.mecha-hero-frame.is-compact {
    padding: 16px 18px 12px !important;
  }
}
@media (max-width: 640px) {
  html,
  body,
  #app,
  .main-content,
  .view-container,
  .home-hero,
  .home-hero-main-grid,
  .continue-card,
  .mecha-stepper-card,
  .deck-item,
  .usage-meter-card,
  .pro-promo-card {
    min-width: 0 !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  html,
  body,
  #app {
    width: 100vw !important;
    max-width: 100vw !important;
    overflow-x: hidden !important;
  }
  .view-container {
    padding: 16px 12px 96px !important;
  }
  .top-nav {
    gap: 6px !important;
    padding-left: 10px !important;
    padding-right: 10px !important;
    width: 100vw !important;
    max-width: 100vw !important;
  }
  .nav-brand {
    gap: 6px !important;
    min-width: 0 !important;
  }
  .nav-brand span#appHeaderTitle {
    font-size: 14px !important;
    letter-spacing: 0.05em !important;
  }
  .nav-right {
    gap: 4px !important;
  }
  .nav-icon-btn,
  .nav-avatar {
    width: 30px !important;
    height: 30px !important;
  }
  .nav-upgrade-btn {
    padding: 4px 6px !important;
    font-size: 9px !important;
    letter-spacing: 0.04em !important;
  }
  .mecha-telemetry-bar {
    padding: 4px 10px !important;
    font-size: 8.5px !important;
    width: 100vw !important;
    max-width: 100vw !important;
  }
  .home-hero.mecha-hero-frame {
    padding: 14px 12px !important;
    box-shadow: 3px 3px 0px var(--accent) !important;
    gap: 12px !important;
  }
  .sakofian-spec-label {
    font-size: 8.5px !important;
    line-height: 1.3 !important;
    word-break: break-word !important;
  }
  .home-title {
    font-size: 20px !important;
    letter-spacing: 0.03em !important;
    word-break: break-word !important;
  }
  .home-hero-right-panel {
    align-items: center;
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
  }
  .continue-card {
    flex-wrap: wrap !important;
    gap: 10px !important;
    padding: 14px !important;
  }
  .home-actions-grid.mecha-stepper-grid {
    grid-template-columns: 1fr !important;
  }
  .ad-consent-banner {
    left: 8px !important;
    right: 8px !important;
    width: auto !important;
    max-width: calc(100vw - 16px) !important;
    padding: 12px !important;
    box-sizing: border-box !important;
  }
  .ad-consent-actions {
    flex-wrap: wrap !important;
    gap: 6px !important;
  }
  .mobile-tab-bar {
    display: none !important;
  }
}
html[data-ui-mode="cyberpunk"] .page-title,
html[data-ui-mode="cyberpunk"] .deck-detail-title {
  font-family: var(--font-display) !important;
  font-size: clamp(24px, 3.5vw, 32px) !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em !important;
  line-height: 1.1 !important;
  color: var(--text-primary);
}
html[data-ui-mode="cyberpunk"] .library-header {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 20px !important;
}
html[data-ui-mode="cyberpunk"] .deck-detail-header {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 20px !important;
}
html[data-ui-mode="cyberpunk"] .mode-title {
  font-family: var(--font-display) !important;
  font-weight: 800 !important;
  letter-spacing: 0.02em;
}
html[data-ui-mode="cyberpunk"] .io-modal-title {
  font-family: var(--font-display) !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
html[data-ui-mode="cyberpunk"] .empty-library h3,
html[data-ui-mode="cyberpunk"] .study-empty-title {
  font-family: var(--font-display) !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
html[data-ui-mode="cyberpunk"] .thankyou-title,
html[data-ui-mode="cyberpunk"] .legal-title {
  font-family: var(--font-display) !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em !important;
}
html[data-ui-mode="cyberpunk"] .section-header {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 8px;
  margin-bottom: 16px !important;
}
html[data-ui-mode="cyberpunk"] .section-title {
  font-family: var(--font-display) !important;
  font-size: 16px !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 0.1em !important;
  margin-bottom: 0 !important;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
html[data-ui-mode="cyberpunk"] .section-title::before {
  content: "■";
  color: var(--accent);
  font-size: 12px;
}
html[data-ui-mode="cyberpunk"] .section-link {
  font-family: var(--font-mono) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border: 1.5px solid var(--accent) !important;
  background: var(--bg-surface) !important;
  color: var(--text-primary) !important;
}
html[data-ui-mode="cyberpunk"] .mecha-stepper-card {
  position: relative;
  border: 2px solid var(--accent) !important;
  padding: 18px 20px !important;
  overflow: hidden;
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
  gap: 14px !important;
  box-shadow: 4px 4px 0px var(--border-color) !important;
}
.mecha-stepper-card .action-text {
  flex: 1 1 auto;
  min-width: 0;
  text-align: left;
}
.mecha-stepper-card,
.mecha-stepper-card:visited,
.mecha-stepper-card.is-standby-stepper,
.mecha-stepper-card.is-standby-stepper:visited {
  background: var(--bg-surface) !important;
  color: var(--text-primary) !important;
}
.mecha-stepper-card .action-icon,
.mecha-stepper-card.is-standby-stepper .action-icon {
  background: var(--accent-dim) !important;
  color: var(--accent) !important;
  border: 1.5px solid var(--accent);
}
.mecha-stepper-card .action-title {
  color: var(--text-primary) !important;
}
.mecha-stepper-card .action-desc {
  color: var(--text-muted) !important;
}
html[data-ui-mode="cyberpunk"] .mecha-stepper-card .action-title {
  font-family: var(--font-display);
  font-size: 16px !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
html[data-ui-mode="cyberpunk"] .continue-card {
  background: var(--bg-surface) !important;
  border: 2px solid var(--accent) !important;
  box-shadow: 4px 4px 0px var(--border-color) !important;
}
html[data-ui-mode="cyberpunk"] .continue-eyebrow {
  font-family: var(--font-mono) !important;
  letter-spacing: 0.12em !important;
}
html[data-ui-mode="cyberpunk"] .continue-cta {
  clip-path: var(--chamfer-sm);
  font-family: var(--font-mono) !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1.5px solid var(--border-color);
}
html[data-ui-mode="cyberpunk"] .deck-item,
html[data-ui-mode="cyberpunk"] .home-deck-card {
  background: var(--bg-surface) !important;
  border: 2px solid var(--border-color) !important;
  box-shadow: 4px 4px 0px var(--accent) !important;
  position: relative;
  padding: 18px 20px !important;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast) !important;
}
.mecha-deck-serial {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 4px;
}
html[data-ui-mode="cyberpunk"] .deck-item .deck-title,
html[data-ui-mode="cyberpunk"] .home-deck-title {
  font-family: var(--font-display);
  font-weight: 800 !important;
  letter-spacing: 0.02em;
}
html[data-ui-mode="cyberpunk"] .deck-item .deck-subtitle,
html[data-ui-mode="cyberpunk"] .home-deck-meta {
  font-family: var(--font-mono);
  font-size: 11px !important;
}
html[data-ui-mode="cyberpunk"] .deck-action-primary,
html[data-ui-mode="cyberpunk"] .deck-action-primary.study-btn {
  background: var(--accent) !important;
  color: #000000 !important;
  border: 1.5px solid var(--border-color) !important;
  font-family: var(--font-mono) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 0px !important;
  clip-path: none !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .deck-action-secondary,
html[data-ui-mode="cyberpunk"] .deck-action-secondary.learn-btn {
  background: var(--bg-surface-elevated) !important;
  color: var(--text-primary) !important;
  border: 1.5px solid var(--border-color) !important;
  font-family: var(--font-mono) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 0px !important;
  clip-path: none !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .usage-meter-card,
html[data-ui-mode="cyberpunk"] .settings-card,
html[data-ui-mode="cyberpunk"] .test-panel-card,
html[data-ui-mode="cyberpunk"] .legal-card,
html[data-ui-mode="cyberpunk"] .thankyou-page-card {
  background: var(--bg-surface) !important;
  border: 2px solid var(--border-color) !important;
  box-shadow: 4px 4px 0px var(--accent) !important;
}
html[data-ui-mode="cyberpunk"] .usage-meter-title,
html[data-ui-mode="cyberpunk"] .usage-meter-count {
  font-family: var(--font-mono) !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
html[data-ui-mode="cyberpunk"] .mecha-dither-track,
html[data-ui-mode="cyberpunk"] .usage-meter-track {
  height: 14px !important;
  background: var(--bg-surface-elevated) !important;
  border: 1.5px solid var(--border-color) !important;
  position: relative;
}
html[data-ui-mode="cyberpunk"] .mecha-dither-fill,
html[data-ui-mode="cyberpunk"] .usage-meter-fill {
  height: 100% !important;
  background: repeating-linear-gradient(
    -45deg,
    var(--accent),
    var(--accent) 6px,
    color-mix(in srgb, var(--accent) 75%, #00e5ff) 6px,
    color-mix(in srgb, var(--accent) 75%, #00e5ff) 12px
  ) !important;
}
html[data-ui-mode="cyberpunk"] .pro-promo-card.mecha-blueprint-card {
  background: #0a2efc !important;
  color: #ffffff !important;
  border: 2px solid #0a0b10 !important;
  box-shadow: 5px 5px 0px #0a0b10 !important;
  position: relative;
  overflow: hidden;
}
html[data-ui-mode="cyberpunk"]
  .pro-promo-card.mecha-blueprint-card
  .pro-promo-title,
html[data-ui-mode="cyberpunk"]
  .pro-promo-card.mecha-blueprint-card
  .pro-promo-desc,
html[data-ui-mode="cyberpunk"]
  .pro-promo-card.mecha-blueprint-card
  .pro-promo-price {
  color: #ffffff !important;
}
html[data-ui-mode="cyberpunk"]
  .pro-promo-card.mecha-blueprint-card
  .pro-promo-badge {
  background: #0a0b10 !important;
  color: #00e5ff !important;
  font-family: var(--font-mono);
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
html[data-ui-mode="cyberpunk"]
  .pro-promo-card.mecha-blueprint-card
  .pro-promo-btn {
  background: #ffffff !important;
  color: #0a0b10 !important;
  font-family: var(--font-mono);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 2px solid #0a0b10 !important;
  clip-path: var(--chamfer-sm);
}
html:not([data-ui-mode="cyberpunk"]) .pro-promo-card {
  background: var(--bg-surface) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius-lg, 14px) !important;
  box-shadow: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .pro-promo-card .pro-promo-title {
  color: var(--text-primary) !important;
}
html:not([data-ui-mode="cyberpunk"]) .pro-promo-card .pro-promo-desc {
  color: var(--text-secondary) !important;
}
html:not([data-ui-mode="cyberpunk"]) .pro-promo-card .pro-promo-price {
  color: var(--text-muted) !important;
  font-weight: 600;
  font-size: 12px;
}
html:not([data-ui-mode="cyberpunk"]) .pro-promo-card .pro-promo-badge {
  background: var(--accent-dim) !important;
  color: var(--accent) !important;
  border: 1px solid var(--accent) !important;
  border-radius: 6px !important;
}
html:not([data-ui-mode="cyberpunk"]) .pro-promo-card .pro-promo-btn {
  background: var(--accent) !important;
  color: var(--accent-contrast, #ffffff) !important;
  border: 1.5px solid var(--accent) !important;
  border-radius: var(--radius-sm, 8px) !important;
  clip-path: none !important;
}
html[data-ui-mode="cyberpunk"] .study-modes-bar {
  background: var(--bg-surface) !important;
  border: 2px solid var(--border-color) !important;
  box-shadow: 3px 3px 0px var(--accent) !important;
  padding: 4px !important;
}
html[data-ui-mode="cyberpunk"] .study-mode-nav-btn {
  font-family: var(--font-mono) !important;
  font-size: 12px !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
html[data-ui-mode="cyberpunk"] .study-mode-nav-btn.active {
  background: var(--accent) !important;
  color: var(--accent-contrast) !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .study-mode-nav-btn.active svg {
  color: var(--accent-contrast) !important;
}
/* --- Cyberpunk Button Architecture & Clean Flat Box System (Zero Drop Shadows) --- */
html[data-ui-mode="cyberpunk"] .btn,
html[data-ui-mode="cyberpunk"] .btn-primary,
html[data-ui-mode="cyberpunk"] .btn-secondary,
html[data-ui-mode="cyberpunk"] .action-btn,
html[data-ui-mode="cyberpunk"] .action-btn-sm,
html[data-ui-mode="cyberpunk"] .deck-action-primary,
html[data-ui-mode="cyberpunk"] .deck-action-secondary,
html[data-ui-mode="cyberpunk"] .study-btn,
html[data-ui-mode="cyberpunk"] .learn-btn,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn,
html[data-ui-mode="cyberpunk"] .home-deck-learn-btn,
html[data-ui-mode="cyberpunk"] .modal-btn,
html[data-ui-mode="cyberpunk"] .upload-btn,
html[data-ui-mode="cyberpunk"] .io-action-btn,
html[data-ui-mode="cyberpunk"] .fc-btn,
html[data-ui-mode="cyberpunk"] .fc-settings-trigger,
html[data-ui-mode="cyberpunk"] .toolbar-btn,
html[data-ui-mode="cyberpunk"] .nav-create-btn,
html[data-ui-mode="cyberpunk"] .nav-upgrade-btn,
html[data-ui-mode="cyberpunk"] .nav-avatar,
html[data-ui-mode="cyberpunk"] .nav-music-cluster,
html[data-ui-mode="cyberpunk"] .nav-music-pill,
html[data-ui-mode="cyberpunk"] .nav-music-chevron-btn,
html[data-ui-mode="cyberpunk"] .learn-continue-btn,
html[data-ui-mode="cyberpunk"] .match-action-btn,
html[data-ui-mode="cyberpunk"] .match-action-btn-secondary,
html[data-ui-mode="cyberpunk"] .resource-watch-btn,
html[data-ui-mode="cyberpunk"] .resource-deck-btn,
html[data-ui-mode="cyberpunk"] #theaterCreateDeckBtn,
html[data-ui-mode="cyberpunk"] #theaterCloseBtn,
html[data-ui-mode="cyberpunk"] .resources-tabs-scroll-arrow,
html[data-ui-mode="cyberpunk"] .resources-tab-main-btn,
html[data-ui-mode="cyberpunk"] .resources-tab-arrow-btn,
html[data-ui-mode="cyberpunk"] .upgrade-restore-btn,
html[data-ui-mode="cyberpunk"] .continue-cta,
html[data-ui-mode="cyberpunk"] .ad-slot-cta,
html[data-ui-mode="cyberpunk"] .ad-consent-upgrade-btn {
  font-family: var(--font-mono) !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 0px !important;
  clip-path: none !important;
  box-shadow: none !important;
  transition:
    border-color 120ms ease,
    background-color 120ms ease,
    color 120ms ease !important;
}
html[data-ui-mode="cyberpunk"] .action-btn.primary,
html[data-ui-mode="cyberpunk"] .action-btn-sm.primary,
html[data-ui-mode="cyberpunk"] .btn-primary,
html[data-ui-mode="cyberpunk"] .modal-btn.confirm,
html[data-ui-mode="cyberpunk"] .upload-btn.primary,
html[data-ui-mode="cyberpunk"] .io-action-btn.primary,
html[data-ui-mode="cyberpunk"] .nav-create-btn,
html[data-ui-mode="cyberpunk"] .learn-continue-btn,
html[data-ui-mode="cyberpunk"] .match-action-btn,
html[data-ui-mode="cyberpunk"] .resource-watch-btn,
html[data-ui-mode="cyberpunk"] #theaterCreateDeckBtn,
html[data-ui-mode="cyberpunk"] .continue-cta,
html[data-ui-mode="cyberpunk"] .ad-consent-upgrade-btn {
  background: var(--accent) !important;
  color: var(--accent-contrast, #ffffff) !important;
  border: 1.5px solid var(--border-color) !important;
  clip-path: none !important;
  border-radius: 0px !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .search-input,
html[data-ui-mode="cyberpunk"] .form-input {
  background: var(--bg-surface) !important;
  border: 2px solid var(--border-color) !important;
  font-family: var(--font-mono) !important;
}
html[data-ui-mode="cyberpunk"] .search-input:focus,
html[data-ui-mode="cyberpunk"] .form-input:focus {
  border-color: var(--accent) !important;
  box-shadow: 3px 3px 0px var(--accent) !important;
}
html[data-ui-mode="cyberpunk"] .folder-chip,
html[data-ui-mode="cyberpunk"] .chip-add-btn {
  font-family: var(--font-mono) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border: 1.5px solid var(--border-color) !important;
  background: var(--bg-surface) !important;
}
html[data-ui-mode="cyberpunk"] .folder-chip.active {
  background: var(--accent) !important;
  color: var(--accent-contrast) !important;
  border-color: var(--border-color) !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .back-link,
html[data-ui-mode="cyberpunk"] .study-back-link {
  font-family: var(--font-mono) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.08em !important;
  padding: 6px 14px !important;
  border-radius: 0px !important;
  border: 1.5px solid var(--border-color) !important;
  background: var(--bg-surface) !important;
  color: var(--text-primary) !important;
  box-shadow: none !important;
  margin-bottom: 20px !important;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  line-height: 1.2;
}
html[data-ui-mode="cyberpunk"] .back-link svg,
html[data-ui-mode="cyberpunk"] .study-back-link svg {
  width: 14px !important;
  height: 14px !important;
  stroke-width: 2 !important;
}
html[data-ui-mode="cyberpunk"] .back-link:hover,
html[data-ui-mode="cyberpunk"] .study-back-link:hover {
  border-color: var(--accent) !important;
  box-shadow: none !important;
  color: var(--accent) !important;
  background: var(--bg-surface-elevated) !important;
}
  color: var(--accent) !important;
  background: var(--bg-surface-elevated) !important;
}
html[data-ui-mode="cyberpunk"] .settings-group-title {
  font-family: var(--font-mono) !important;
  font-size: 12px !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 0.1em !important;
  color: var(--accent) !important;
}
.primary-theme-switcher {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 0;
  margin-bottom: 16px;
}
.primary-theme-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 16px 18px;
  background: var(--bg-surface) !important;
  border: 1.5px solid var(--border-color) !important;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
  color: var(--text-primary);
  width: 100%;
  box-sizing: border-box;
}
html[data-ui-mode="cyberpunk"] .primary-theme-btn {
  border: 2px solid var(--border-color) !important;
  box-shadow: none !important;
  font-family: var(--font-mono) !important;
  border-radius: 0px !important;
}
.primary-theme-btn:hover {
  border-color: var(--accent) !important;
  background: var(--bg-surface-elevated) !important;
  transform: none;
}
html[data-ui-mode="cyberpunk"] .primary-theme-btn.active {
  border-color: var(--accent) !important;
  background: var(--accent-dim) !important;
  box-shadow: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .primary-theme-btn.active {
  border-color: var(--accent) !important;
  background: var(--accent-dim) !important;
  box-shadow: none !important;
}
.primary-theme-btn-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
}
.primary-theme-btn.active .primary-theme-btn-title {
  color: var(--accent);
}
html[data-ui-mode="cyberpunk"] .primary-theme-btn-title {
  font-family: var(--font-mono) !important;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
@media (max-width: 600px) {
  .primary-theme-switcher {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}
.theme-card {
  border: 1.5px solid var(--border-color) !important;
  background: var(--bg-surface) !important;
}
html[data-ui-mode="cyberpunk"] .theme-card {
  border: 2px solid var(--border-color) !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .theme-card.active {
  border-color: var(--accent) !important;
  box-shadow: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .theme-card.active {
  border-color: var(--accent) !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .palette-dot {
  border-radius: 0px !important;
  border: 1px solid var(--border-color) !important;
}
.modal-card {
  background: var(--bg-surface) !important;
  border: 1.5px solid var(--border-color) !important;
}
html[data-ui-mode="cyberpunk"] .modal-card {
  border: 2px solid var(--border-color) !important;
  border-top: 6px solid var(--accent) !important;
  box-shadow: 8px 8px 0px var(--accent) !important;
}
html:not([data-ui-mode="cyberpunk"]) .modal-card {
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .ad-consent-banner {
  border-radius: 0px !important;
  background: var(--bg-surface) !important;
  border: 2px solid var(--border-color) !important;
  border-top: 4px solid var(--accent) !important;
  box-shadow: 4px 4px 0px var(--accent) !important;
}
html:not([data-ui-mode="cyberpunk"]) .ad-consent-banner {
  box-shadow: none !important;
}
.mobile-tab-bar {
  display: none !important;
}
@media (hover: hover) and (pointer: fine) {
  html[data-ui-mode="cyberpunk"] .deck-item:hover,
  html[data-ui-mode="cyberpunk"] .home-deck-card:hover,
  html[data-ui-mode="cyberpunk"] .mecha-stepper-card:hover {
    transform: translate(-2px, -2px) !important;
    border-color: var(--accent) !important;
    box-shadow: 6px 6px 0px var(--accent) !important;
  }
  html[data-ui-mode="cyberpunk"] .deck-item:hover .target-crosshair {
    transform: rotate(90deg) scale(1.2);
  }
  html[data-ui-mode="cyberpunk"] .btn:hover,
  html[data-ui-mode="cyberpunk"] .btn-primary:hover,
  html[data-ui-mode="cyberpunk"] .btn-secondary:hover,
  html[data-ui-mode="cyberpunk"] .action-btn:hover,
  html[data-ui-mode="cyberpunk"] .action-btn-sm:hover,
  html[data-ui-mode="cyberpunk"] .deck-action-primary:hover,
  html[data-ui-mode="cyberpunk"] .deck-action-secondary:hover,
  html[data-ui-mode="cyberpunk"] .study-btn:hover,
  html[data-ui-mode="cyberpunk"] .learn-btn:hover,
  html[data-ui-mode="cyberpunk"] .home-deck-study-btn:hover,
  html[data-ui-mode="cyberpunk"] .home-deck-learn-btn:hover,
  html[data-ui-mode="cyberpunk"] .modal-btn:hover,
  html[data-ui-mode="cyberpunk"] .upload-btn:hover,
  html[data-ui-mode="cyberpunk"] .io-action-btn:hover,
  html[data-ui-mode="cyberpunk"] .fc-btn:hover,
  html[data-ui-mode="cyberpunk"] .fc-settings-trigger:hover,
  html[data-ui-mode="cyberpunk"] .toolbar-btn:hover,
  html[data-ui-mode="cyberpunk"] .nav-create-btn:hover,
  html[data-ui-mode="cyberpunk"] .nav-upgrade-btn:hover,
  html[data-ui-mode="cyberpunk"] .nav-avatar:hover,
  html[data-ui-mode="cyberpunk"] .nav-music-cluster:hover,
  html[data-ui-mode="cyberpunk"] .nav-music-pill:hover,
  html[data-ui-mode="cyberpunk"] .nav-music-chevron-btn:hover,
  html[data-ui-mode="cyberpunk"] .learn-continue-btn:hover,
  html[data-ui-mode="cyberpunk"] .match-action-btn:hover,
  html[data-ui-mode="cyberpunk"] .match-action-btn-secondary:hover,
  html[data-ui-mode="cyberpunk"] .resource-watch-btn:hover,
  html[data-ui-mode="cyberpunk"] .resource-deck-btn:hover,
  html[data-ui-mode="cyberpunk"] #theaterCreateDeckBtn:hover,
  html[data-ui-mode="cyberpunk"] #theaterCloseBtn:hover,
  html[data-ui-mode="cyberpunk"] .resources-tabs-scroll-arrow:hover,
  html[data-ui-mode="cyberpunk"] .resources-tab-main-btn:hover,
  html[data-ui-mode="cyberpunk"] .resources-tab-arrow-btn:hover,
  html[data-ui-mode="cyberpunk"] .upgrade-restore-btn:hover,
  html[data-ui-mode="cyberpunk"] .continue-cta:hover,
  html[data-ui-mode="cyberpunk"] .ad-slot-cta:hover,
  html[data-ui-mode="cyberpunk"] .ad-consent-upgrade-btn:hover {
    transform: none !important;
    border-color: var(--accent) !important;
    box-shadow: none !important;
  }
}
html[data-ui-mode="cyberpunk"] .btn:active,
html[data-ui-mode="cyberpunk"] .btn-primary:active,
html[data-ui-mode="cyberpunk"] .btn-secondary:active,
html[data-ui-mode="cyberpunk"] .action-btn:active,
html[data-ui-mode="cyberpunk"] .action-btn-sm:active,
html[data-ui-mode="cyberpunk"] .deck-action-primary:active,
html[data-ui-mode="cyberpunk"] .deck-action-secondary:active,
html[data-ui-mode="cyberpunk"] .study-btn:active,
html[data-ui-mode="cyberpunk"] .learn-btn:active,
html[data-ui-mode="cyberpunk"] .home-deck-study-btn:active,
html[data-ui-mode="cyberpunk"] .home-deck-learn-btn:active,
html[data-ui-mode="cyberpunk"] .modal-btn:active,
html[data-ui-mode="cyberpunk"] .upload-btn:active,
html[data-ui-mode="cyberpunk"] .io-action-btn:active,
html[data-ui-mode="cyberpunk"] .fc-btn:active,
html[data-ui-mode="cyberpunk"] .fc-settings-trigger:active,
html[data-ui-mode="cyberpunk"] .toolbar-btn:active,
html[data-ui-mode="cyberpunk"] .nav-create-btn:active,
html[data-ui-mode="cyberpunk"] .nav-upgrade-btn:active,
html[data-ui-mode="cyberpunk"] .nav-avatar:active,
html[data-ui-mode="cyberpunk"] .nav-music-cluster:active,
html[data-ui-mode="cyberpunk"] .nav-music-pill:active,
html[data-ui-mode="cyberpunk"] .nav-music-chevron-btn:active,
html[data-ui-mode="cyberpunk"] .learn-continue-btn:active,
html[data-ui-mode="cyberpunk"] .match-action-btn:active,
html[data-ui-mode="cyberpunk"] .match-action-btn-secondary:active,
html[data-ui-mode="cyberpunk"] .resource-watch-btn:active,
html[data-ui-mode="cyberpunk"] .resource-deck-btn:active,
html[data-ui-mode="cyberpunk"] #theaterCreateDeckBtn:active,
html[data-ui-mode="cyberpunk"] #theaterCloseBtn:active,
html[data-ui-mode="cyberpunk"] .resources-tabs-scroll-arrow:active,
html[data-ui-mode="cyberpunk"] .resources-tab-main-btn:active,
html[data-ui-mode="cyberpunk"] .resources-tab-arrow-btn:active,
html[data-ui-mode="cyberpunk"] .upgrade-restore-btn:active,
html[data-ui-mode="cyberpunk"] .continue-cta:active,
html[data-ui-mode="cyberpunk"] .ad-slot-cta:active,
html[data-ui-mode="cyberpunk"] .ad-consent-upgrade-btn:active {
  transform: none !important;
  box-shadow: none !important;
}
.action-btn-sm.primary,
.modal-btn.confirm,
.nav-create-btn {
  color: var(--accent-contrast, #ffffff) !important;
}
.custom-checkbox-input:checked + .custom-checkbox-box::after {
  border-color: var(--accent-contrast, #ffffff) !important;
}
.custom-toggle input:checked + .toggle-slider::before {
  background-color: var(--accent-contrast, #ffffff) !important;
}
html[data-theme="blueprint-cobalt"] .mecha-cockpit-backdrop {
  color: rgba(255, 255, 255, 0.85) !important;
}
html[data-theme="blueprint-cobalt"] .section-title,
html[data-theme="blueprint-cobalt"] .settings-group-title {
  display: inline-flex;
  align-items: center;
  background: #ffffff !important;
  color: #0a0b10 !important;
  border: 1.5px solid #0a0b10 !important;
  padding: 4px 12px !important;
  box-shadow: none !important;
}
/* --- Cyberpunk Blueprint Cobalt Theme Overrides --- */
html[data-theme="blueprint-cobalt"] .back-link,
html[data-theme="blueprint-cobalt"] .study-back-link {
  background: #ffffff !important;
  color: #0a0b10 !important;
  border: 1.5px solid #0a0b10 !important;
  box-shadow: none !important;
}
html[data-theme="blueprint-cobalt"] .back-link svg,
html[data-theme="blueprint-cobalt"] .study-back-link svg {
  color: #0a0b10 !important;
}
html[data-theme="blueprint-cobalt"] .back-link:hover,
html[data-theme="blueprint-cobalt"] .study-back-link:hover {
  background: #f0f4fa !important;
  color: #0a0b10 !important;
  border-color: var(--accent, #0a0b10) !important;
  box-shadow: none !important;
}
html[data-theme="blueprint-cobalt"] .fc-counter-wrap,
html[data-theme="blueprint-cobalt"] .fc-shortcuts-note,
html[data-theme="blueprint-cobalt"] .deck-pill,
html[data-theme="blueprint-cobalt"] .deck-sub-pill,
html[data-theme="blueprint-cobalt"] .fc-settings-trigger,
html[data-theme="blueprint-cobalt"] .primary-theme-btn {
  background: #ffffff !important;
  color: #0a0b10 !important;
  border: 1.5px solid #0a0b10 !important;
}
html[data-theme="blueprint-cobalt"] .fc-star-trigger.starred {
  background: #ffffff !important;
  color: #d97706 !important;
  border-color: #0a0b10 !important;
}
html[data-theme="blueprint-cobalt"] .primary-theme-btn.active {
  background: #ffffff !important;
  color: #0a0b10 !important;
  border: 2px solid var(--accent, #0a0b10) !important;
  box-shadow: none !important;
}
html[data-theme="blueprint-cobalt"]
  .primary-theme-btn
  .primary-theme-btn-title {
  color: #0a0b10 !important;
}
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .btn-primary,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .btn-secondary,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .action-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .action-btn-sm,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .deck-action-primary,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .deck-action-secondary,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .study-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .learn-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .home-deck-study-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .home-deck-learn-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .modal-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .upload-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .io-action-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .fc-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .fc-settings-trigger,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .toolbar-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .nav-create-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .nav-upgrade-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .nav-avatar,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .nav-music-cluster,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .nav-music-pill,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .nav-music-chevron-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .learn-continue-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .match-action-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .match-action-btn-secondary,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resource-watch-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resource-deck-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  #theaterCreateDeckBtn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] #theaterCloseBtn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resources-tabs-scroll-arrow,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resources-tab-main-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resources-tab-arrow-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .upgrade-restore-btn,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .continue-cta,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .ad-slot-cta,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .ad-consent-upgrade-btn {
  box-shadow: none !important;
  clip-path: none !important;
  border-radius: 0px !important;
}
@media (hover: hover) and (pointer: fine) {
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .action-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .action-btn-sm:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .btn-primary:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .btn-secondary:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .deck-action-primary:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .deck-action-secondary:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .study-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .learn-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .home-deck-study-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .home-deck-learn-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .modal-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .upload-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .io-action-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .fc-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .fc-settings-trigger:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .toolbar-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .nav-create-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .nav-upgrade-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .nav-avatar:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .nav-music-cluster:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .nav-music-pill:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .nav-music-chevron-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .learn-continue-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .match-action-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .match-action-btn-secondary:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .resource-watch-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .resource-deck-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    #theaterCreateDeckBtn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    #theaterCloseBtn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .resources-tabs-scroll-arrow:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .resources-tab-main-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .resources-tab-arrow-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .upgrade-restore-btn:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .continue-cta:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .ad-slot-cta:hover,
  html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
    .ad-consent-upgrade-btn:hover {
    transform: none !important;
    border-color: #0a0b10 !important;
    box-shadow: none !important;
  }
}
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .action-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .action-btn-sm:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .btn-primary:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .btn-secondary:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .deck-action-primary:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .deck-action-secondary:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .study-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .learn-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .home-deck-study-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .home-deck-learn-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .modal-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .upload-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .io-action-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"] .fc-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .fc-settings-trigger:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .toolbar-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .nav-create-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .nav-upgrade-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .nav-avatar:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .nav-music-cluster:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .nav-music-pill:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .nav-music-chevron-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .learn-continue-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .match-action-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .match-action-btn-secondary:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resource-watch-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resource-deck-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  #theaterCreateDeckBtn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  #theaterCloseBtn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resources-tabs-scroll-arrow:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resources-tab-main-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .resources-tab-arrow-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .upgrade-restore-btn:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .continue-cta:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .ad-slot-cta:active,
html[data-theme="blueprint-cobalt"][data-ui-mode="cyberpunk"]
  .ad-consent-upgrade-btn:active {
  transform: none !important;
  box-shadow: none !important;
}

/* Locked labels share outer button surface */
#settingsFontLockBtn,
#settingsFontUploadLockBtn,
#settingsAccentLockBtn {
  justify-content: center;
}
#settingsFontLockBtn > .locked-badge,
#settingsFontUploadLockBtn > .locked-badge,
#settingsAccentLockBtn > .locked-badge {
  justify-content: center;
  padding: 3px 9px;
  border: 0;
  background: transparent;
  box-shadow: none;
}

html[data-ui-mode="cyberpunk"] .minimal-ambient-backdrop,
html[data-ui-mode="cyberpunk"] .minimal-hero-art,
html[data-ui-mode="cyberpunk"] .minimal-footer {
  display: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .app-container {
  position: relative;
  z-index: 1;
  background: transparent !important;
}
html:not([data-ui-mode="cyberpunk"]) .main-content {
  position: relative;
  z-index: 2;
  background: transparent !important;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-ambient-backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  background: var(--bg-primary);
}
html:not([data-ui-mode="cyberpunk"]) .minimal-dot-matrix {
  display: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-ambient-orb {
  display: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-contour-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 0.9;
}
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"])
  .minimal-contour-layer {
  opacity: 0.75;
}
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"])
  .minimal-contour-layer {
  opacity: 0.92;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-contour-glow {
  position: absolute;
  top: 10%;
  right: 12%;
  width: 500px;
  height: 500px;
  border-radius: 9999px;
  background: radial-gradient(
    circle,
    var(--galaxy-core-1, rgba(255, 255, 255, 0.08)) 0%,
    transparent 65%
  );
  pointer-events: none;
  opacity: 0.6;
}
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .minimal-contour-glow {
  background: radial-gradient(
    circle,
    var(--galaxy-core-1, rgba(180, 190, 254, 0.12)) 0%,
    transparent 65%
  ) !important;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-contour-svg {
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 1440px;
  max-width: none;
  height: 1120px;
}
html:not([data-ui-mode="cyberpunk"]) .top-nav {
  background: rgba(11, 11, 14, 0.8) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(34, 34, 45, 0.85) !important;
}
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .top-nav {
  background: rgba(248, 250, 252, 0.82) !important;
  border-bottom: 1px solid rgba(226, 232, 240, 0.9) !important;
}
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .top-nav {
  background: rgba(30, 30, 46, 0.82) !important;
  border-bottom: 1px solid rgba(69, 71, 90, 0.85) !important;
}
html:not([data-ui-mode="cyberpunk"]) .nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid transparent;
  color: var(--text-secondary);
}
html:not([data-ui-mode="cyberpunk"]) .nav-link.active {
  background: var(--bg-surface-elevated) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color-strong) !important;
}
html:not([data-ui-mode="cyberpunk"]) .nav-link.active::after {
  display: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .nav-upgrade-btn {
  border: 1px solid rgba(245, 158, 11, 0.3) !important;
  background: rgba(245, 158, 11, 0.1) !important;
  color: #fbbf24 !important;
  border-radius: 8px !important;
  font-size: 0.75rem !important;
  font-weight: 600 !important;
  letter-spacing: 0.04em !important;
  padding: 6px 12px !important;
}
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .nav-upgrade-btn {
  color: #b45309 !important;
  background: rgba(245, 158, 11, 0.14) !important;
}
html:not([data-ui-mode="cyberpunk"]) .nav-create-btn {
  background: var(--accent) !important;
  color: var(--accent-contrast, #ffffff) !important;
  border-radius: 8px !important;
  font-size: 0.875rem !important;
  font-weight: 500 !important;
  padding: 6px 14px !important;
  border: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .home-hero {
  position: relative;
  overflow: hidden;
  background: rgba(20, 20, 26, 0.78) !important;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  border: 1px solid var(--border-color) !important;
  border-radius: 14px !important;
  padding: 22px 28px !important;
  min-height: auto !important;
  display: flex;
  align-items: center;
}
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .home-hero {
  background: rgba(255, 255, 255, 0.82) !important;
}
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .home-hero {
  background: rgba(49, 50, 68, 0.78) !important;
}
html:not([data-ui-mode="cyberpunk"]) .home-hero-main-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  position: relative;
  z-index: 2;
}
html:not([data-ui-mode="cyberpunk"]) .home-hero-content {
  position: relative;
  z-index: 2;
  max-width: 580px;
}
html:not([data-ui-mode="cyberpunk"]) .home-hero-title,
html:not([data-ui-mode="cyberpunk"]) .home-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.2vw, 1.85rem) !important;
  font-weight: 700 !important;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.25;
}
html:not([data-ui-mode="cyberpunk"]) .home-plan-badge {
  position: relative;
  z-index: 3;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-hero-art {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 64%;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.95;
  z-index: 1;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-hero-fade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to right,
    rgba(20, 20, 26, 0.96) 0%,
    rgba(20, 20, 26, 0.4) 38%,
    transparent 100%
  );
}
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .minimal-hero-fade {
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0.96) 0%,
    rgba(255, 255, 255, 0.4) 38%,
    transparent 100%
  );
}
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .minimal-hero-fade {
  background: linear-gradient(
    to right,
    rgba(49, 50, 68, 0.96) 0%,
    rgba(49, 50, 68, 0.4) 38%,
    transparent 100%
  );
}
html:not([data-ui-mode="cyberpunk"]) .minimal-hero-glow {
  position: absolute;
  right: -32px;
  top: 50%;
  transform: translateY(-50%);
  width: 256px;
  height: 256px;
  border-radius: 9999px;
  background: radial-gradient(
    circle,
    var(--galaxy-core-1, rgba(255, 255, 255, 0.08)) 0%,
    transparent 70%
  );
}
html:not([data-ui-mode="cyberpunk"]) .minimal-hero-svg {
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 460px;
  height: 280px;
}
html:not([data-ui-mode="cyberpunk"]) .home-action-card,
html:not([data-ui-mode="cyberpunk"]) .home-deck-card,
html:not([data-ui-mode="cyberpunk"]) .deck-item,
html:not([data-ui-mode="cyberpunk"]) .home-continue-card,
html:not([data-ui-mode="cyberpunk"]) .usage-meter-card,
html:not([data-ui-mode="cyberpunk"]) .settings-card {
  background: rgba(20, 20, 26, 0.76) !important;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  border: 1px solid var(--border-color) !important;
  border-radius: 12px !important;
}
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .home-action-card,
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .home-deck-card,
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .deck-item,
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .home-continue-card,
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .usage-meter-card,
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .settings-card {
  background: rgba(255, 255, 255, 0.8) !important;
}
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .home-action-card,
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .home-deck-card,
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .deck-item,
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .home-continue-card,
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .usage-meter-card,
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .settings-card {
  background: rgba(49, 50, 68, 0.78) !important;
}
html:not([data-ui-mode="cyberpunk"]) .home-action-card:hover,
html:not([data-ui-mode="cyberpunk"]) .home-deck-card:hover,
html:not([data-ui-mode="cyberpunk"]) .deck-item:hover {
  border-color: var(--accent-border, var(--border-color-strong)) !important;
  transform: none !important;
}
html:not([data-ui-mode="cyberpunk"]) .home-action-card .action-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px !important;
  background: var(--bg-surface-elevated) !important;
  border: 1px solid var(--border-color-strong) !important;
  color: var(--text-primary) !important;
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}
html:not([data-ui-mode="cyberpunk"]) .home-action-card:hover .action-icon {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: var(--accent-contrast, #ffffff) !important;
}
html:not([data-ui-mode="cyberpunk"]) .pro-promo-card {
  background: linear-gradient(
    90deg,
    rgba(20, 20, 26, 0.84) 0%,
    rgba(26, 26, 38, 0.84) 55%,
    var(--galaxy-core-1, rgba(255, 255, 255, 0.06)) 100%
  ) !important;
  border: 1px solid var(--border-color-strong) !important;
  border-radius: 12px !important;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .pro-promo-card {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.88) 0%,
    rgba(241, 245, 249, 0.88) 55%,
    rgba(79, 107, 255, 0.1) 100%
  ) !important;
}
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .pro-promo-card {
  background: linear-gradient(
    90deg,
    rgba(49, 50, 68, 0.88) 0%,
    rgba(69, 71, 90, 0.88) 55%,
    rgba(180, 190, 254, 0.15) 100%
  ) !important;
}
html:not([data-ui-mode="cyberpunk"]) .ad-slot-container {
  background: rgba(18, 18, 23, 0.72) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 12px !important;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  position: relative;
  z-index: 1;
}
html[data-theme="latte"]:not([data-ui-mode="cyberpunk"]) .ad-slot-container {
  background: rgba(241, 245, 249, 0.76) !important;
}
html[data-theme="mocha"]:not([data-ui-mode="cyberpunk"]) .ad-slot-container {
  background: rgba(30, 30, 46, 0.76) !important;
}
html[data-ui-mode="cyberpunk"] .ad-slot-container {
  background: var(--bg-surface) !important;
  border: 2px solid var(--border-color) !important;
  box-shadow: 4px 4px 0px var(--accent) !important;
  border-radius: 0px !important;
  position: relative;
  overflow: visible;
}
html[data-ui-mode="cyberpunk"] .ad-slot-badge {
  font-family: var(--font-mono) !important;
  font-size: 10px !important;
  font-weight: 800 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.1em !important;
  padding: 4px 10px !important;
  background: var(--bg-surface-elevated) !important;
  border-bottom: 2px solid var(--border-color) !important;
  border-right: 2px solid var(--border-color) !important;
  color: var(--accent) !important;
  border-radius: 0px !important;
}
html[data-ui-mode="cyberpunk"] .ad-slot-brand {
  font-family: var(--font-mono) !important;
  font-size: 12px !important;
  font-weight: 800 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.08em !important;
  color: var(--text-primary) !important;
}
html[data-ui-mode="cyberpunk"] .ad-slot-text {
  font-family: var(--font-body) !important;
  font-size: 13px !important;
  color: var(--text-secondary) !important;
}
html[data-ui-mode="cyberpunk"] .ad-slot-cta {
  font-family: var(--font-mono) !important;
  font-size: 11px !important;
  font-weight: 800 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.08em !important;
  padding: 6px 14px !important;
  background: var(--accent) !important;
  color: var(--accent-contrast) !important;
  border: 1.5px solid var(--border-color) !important;
  border-radius: 0px !important;
  box-shadow: none !important;
  cursor: pointer;
  clip-path: none !important;
}
html[data-ui-mode="cyberpunk"] .ad-slot-cta:hover {
  transform: none !important;
  box-shadow: none !important;
  filter: brightness(1.08);
}
html:not([data-ui-mode="cyberpunk"]) .minimal-footer {
  max-width: 1000px;
  margin: 36px auto 0;
  padding: 24px 20px 12px;
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}
html:not([data-ui-mode="cyberpunk"]) .minimal-footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-footer-left {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-secondary);
}
html:not([data-ui-mode="cyberpunk"]) .minimal-footer-links {
  display: inline-flex;
  align-items: center;
  gap: 20px;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}
html:not([data-ui-mode="cyberpunk"]) .minimal-footer-links a:hover {
  color: var(--text-secondary);
}

/* --- Collapsible Study Sidebar Navigation --- */
.study-layout {
  position: relative;
  z-index: 2;
  display: flex;
  flex: 1;
  min-height: 0;
  min-width: 0;
}
.study-layout > .main-content {
  min-width: 0;
}
.study-mode-sidebar {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 0 0 152px;
  width: 152px;
  min-width: 0;
  visibility: visible;
  box-sizing: border-box;
  padding: 24px 10px;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  border-right: 1px solid var(--border-color);
  background: var(--bg-primary);
  transition:
    width var(--sidebar-duration) var(--sidebar-easing),
    flex-basis var(--sidebar-duration) var(--sidebar-easing),
    padding var(--sidebar-duration) var(--sidebar-easing),
    opacity var(--sidebar-duration) var(--sidebar-easing),
    border-width var(--sidebar-duration) var(--sidebar-easing),
    visibility 0s linear var(--sidebar-visibility-delay, 0s);
}
.study-mode-link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  min-width: 131px;
  transition:
    opacity var(--sidebar-duration) var(--sidebar-easing),
    transform var(--sidebar-duration) var(--sidebar-easing),
    background 150ms ease,
    color 150ms ease;
}
html.sidebar-collapsed .study-mode-sidebar,
body.sidebar-collapsed .study-mode-sidebar {
  flex: 0 0 0px !important;
  width: 0 !important;
  min-width: 0 !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
  border-right-width: 0;
  opacity: 0 !important;
  pointer-events: none !important;
  visibility: hidden;
  --sidebar-visibility-delay: var(--sidebar-duration);
}
html.sidebar-collapsed .study-mode-link,
body.sidebar-collapsed .study-mode-link {
  opacity: 0 !important;
  transform: translateX(-14px) !important;
  pointer-events: none !important;
}
a.study-mode-link {
  color: var(--text-secondary);
}
.study-mode-link svg {
  flex-shrink: 0;
}
a.study-mode-link[aria-current="page"] {
  color: var(--text-primary);
  background: var(--accent-dim);
  border-color: var(--border-active, var(--accent));
  font-weight: 700;
}
a.study-mode-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
@media (hover: hover) and (pointer: fine) {
  a.study-mode-link:hover {
    background: var(--bg-surface);
    color: var(--text-primary);
  }
}
@media (max-width: 767px) {
  .study-layout {
    flex-direction: column;
  }
  .study-mode-sidebar {
    flex: 0 0 auto;
    width: 100%;
    flex-direction: row;
    gap: 2px;
    padding: 6px max(6px, env(safe-area-inset-right)) 6px
      max(6px, env(safe-area-inset-left));
    border-right: 0;
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    height: 57px;
    flex-shrink: 0;
    transition:
      height var(--sidebar-duration) var(--sidebar-easing),
      padding var(--sidebar-duration) var(--sidebar-easing),
      opacity var(--sidebar-duration) var(--sidebar-easing),
      border-width var(--sidebar-duration) var(--sidebar-easing),
      visibility 0s linear var(--sidebar-visibility-delay, 0s);
  }
  .study-mode-sidebar::-webkit-scrollbar {
    display: none;
  }
  .study-mode-link {
    min-width: 0;
    flex: 1;
    justify-content: center;
    padding: 8px 6px;
    font-size: 12px;
    gap: 6px;
  }
  .study-mode-link svg {
    display: block;
    width: 15px;
    height: 15px;
    flex-shrink: 0;
  }
  html.sidebar-collapsed .study-mode-sidebar,
  body.sidebar-collapsed .study-mode-sidebar {
    flex: 0 0 auto !important;
    width: 100% !important;
    height: 0;
    padding-left: max(6px, env(safe-area-inset-left)) !important;
    padding-right: max(6px, env(safe-area-inset-right)) !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    border-bottom-width: 0;
    opacity: 0 !important;
    pointer-events: none !important;
    visibility: hidden;
    --sidebar-visibility-delay: var(--sidebar-duration);
  }
  html.sidebar-collapsed .study-mode-link,
  body.sidebar-collapsed .study-mode-link {
    transform: translateY(-8px) !important;
  }
}
body.fullscreen-study-mode .study-mode-sidebar {
  display: none;
}

/* --- View Reveal & Transition Ready --- */
html.dashboard-loading #mainContent {
  position: relative;
}
.dashboard-skeleton {
  position: absolute;
  inset: 0 0 auto;
  pointer-events: none;
}
.dashboard-skeleton-hero,
.dashboard-skeleton-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg, 12px);
  padding: 24px;
}
.dashboard-skeleton-hero {
  min-height: 144px;
  margin-bottom: 28px;
}
.dashboard-skeleton-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 20px 0 28px;
}
.dashboard-skeleton-card {
  min-height: 140px;
}
.dashboard-skeleton .skeleton-pill {
  width: 100px;
  height: 32px;
  margin-top: 20px;
  border-radius: var(--radius-sm, 6px);
}
.dashboard-loading-label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.dashboard-loading-error {
  pointer-events: auto;
  padding: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg, 12px);
}
.dashboard-loading-error p {
  margin-bottom: 16px;
}
@media (max-width: 767px) {
  .dashboard-skeleton-grid {
    grid-template-columns: 1fr;
  }
}
@media (prefers-reduced-motion: reduce) {
  .dashboard-skeleton .skeleton-line,
  .dashboard-skeleton .skeleton-pill {
    animation: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --sidebar-duration: 0s;
  }
}

/* --- Sakofi 2.0 Addons & Architecture --- */

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* --- Same-Document View Transitions --- */
:root {
  view-transition-name: none;
}
#mainContent {
  view-transition-name: main-view;
}
::view-transition-old(main-view),
::view-transition-new(main-view) {
  animation-duration: 130ms;
  animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}
@media (prefers-reduced-motion: reduce) {
  #mainContent {
    view-transition-name: none;
  }
}

/* --- Topbar Quick Deck Search --- */
.nav-quick-search {
  position: relative;
  display: flex;
  align-items: center;
  flex: 0 1 320px;
  min-width: 180px;
  margin-left: 16px;
}
.nav-quick-search-icon {
  position: absolute;
  left: 11px;
  color: var(--text-muted);
  pointer-events: none;
}
.nav-quick-search-input {
  width: 100%;
  height: 36px;
  padding: 6px 34px 6px 34px;
  border-radius: 9px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition:
    border-color 140ms ease,
    box-shadow 140ms ease,
    background-color 140ms ease;
}
.nav-quick-search-input::placeholder {
  color: var(--text-muted);
}
.nav-quick-search-input:focus {
  border-color: var(--accent);
  background: var(--bg-surface);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.nav-search-kbd {
  position: absolute;
  right: 9px;
  padding: 1px 6px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-muted);
  font-family: var(--font-mono) !important;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  pointer-events: none;
}
.nav-quick-search-input:focus + .nav-search-kbd {
  opacity: 0;
}
.nav-search-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  min-width: 280px;
  max-height: 340px;
  overflow-y: auto;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  box-shadow: var(--shadow-popover, 0 12px 32px rgba(0, 0, 0, 0.35));
  z-index: 1050;
}
.nav-search-header {
  padding: 6px 10px 4px;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.nav-search-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-search-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--text-primary);
  text-decoration: none !important;
  transition:
    background-color 120ms ease,
    color 120ms ease;
}
.nav-search-item:hover,
.nav-search-item.is-highlighted,
.nav-search-item:focus-within {
  background: var(--accent-dim);
  color: var(--accent);
}
.nav-search-item-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}
.nav-search-item-action {
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-secondary) !important;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
}
.nav-search-item-action:hover {
  border-color: var(--accent);
  color: var(--accent) !important;
}
.nav-search-footer {
  margin-top: 4px;
  padding: 8px 10px 4px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.nav-search-create-link {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--accent) !important;
}
.nav-search-create-link:hover {
  text-decoration: underline !important;
}
.nav-search-item-title {
  font-size: 13px;
  font-weight: 600;
  color: inherit;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-search-item-meta {
  font-size: 11.5px;
  color: var(--text-muted);
}
.nav-search-empty {
  padding: 14px 12px;
  text-align: center;
  font-size: 12.5px;
  color: var(--text-muted);
}

/* --- Topbar Music Mini-Player & Popover --- */
.nav-music-cluster {
  position: relative;
  display: inline-flex;
  align-items: center;
  border-radius: 9px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  height: 36px;
}
.nav-music-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 100%;
  padding: 0 10px;
  background: transparent;
  border: none;
  border-radius: 8px 0 0 8px;
  color: var(--text-secondary);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition:
    color 140ms ease,
    background-color 140ms ease;
}
.nav-music-pill:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover, rgba(255, 255, 255, 0.04));
}
.nav-music-pill.playing,
.nav-music-pill.active {
  color: var(--accent);
  background: var(--accent-subtle, var(--accent-dim));
}
.nav-music-track-label {
  max-width: 96px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-music-bars {
  display: none;
  align-items: flex-end;
  gap: 2px;
  height: 12px;
}
.nav-music-bars.is-active {
  display: inline-flex;
}
.nav-music-bars span {
  display: block;
  width: 2.5px;
  height: 4px;
  border-radius: 1px;
  background: var(--accent);
  animation: vizBounce 0.75s ease-in-out infinite alternate;
}
.nav-music-bars span:nth-child(2) {
  animation-delay: 0.18s;
}
.nav-music-bars span:nth-child(3) {
  animation-delay: 0.34s;
}
.nav-music-chevron-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 100%;
  padding: 0;
  background: transparent;
  border: none;
  border-left: 1px solid var(--border-color);
  border-radius: 0 8px 8px 0;
  color: var(--text-muted);
  cursor: pointer;
  transition:
    color 140ms ease,
    background-color 140ms ease;
}
.nav-music-chevron-btn:hover,
.nav-music-chevron-btn[aria-expanded="true"] {
  color: var(--accent);
  background: var(--bg-surface-hover, rgba(255, 255, 255, 0.04));
}
.nav-music-popover {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 288px;
  max-width: calc(100vw - 24px);
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  box-shadow: var(--shadow-popover, 0 14px 36px rgba(0, 0, 0, 0.42));
  z-index: 1060;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.music-popover-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.music-popover-eyebrow {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
}
.music-popover-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 1px;
}
.music-popover-transport {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.music-popover-btn,
.music-transport-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  min-width: 34px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition:
    border-color 140ms ease,
    background-color 140ms ease,
    color 140ms ease;
}
.music-popover-btn:hover,
.music-transport-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.music-popover-btn.primary,
.music-transport-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast, #ffffff);
}
.music-popover-btn.primary:hover,
.music-transport-btn.primary:hover {
  filter: brightness(1.08);
  color: var(--accent-contrast, #ffffff);
}
.music-popover-volume {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-secondary);
}
.music-popover-volume .custom-range {
  flex: 1;
  width: auto;
}
.music-popover-tracks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.music-track-chip {
  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  transition:
    border-color 140ms ease,
    background-color 140ms ease,
    color 140ms ease;
}
.music-track-chip:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}
.music-track-chip.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}
.music-popover-footer {
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.music-popover-settings-link {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent) !important;
}
.music-popover-settings-link:hover {
  text-decoration: underline !important;
}

@media (max-width: 960px) {
  .nav-music-track-label {
    display: none;
  }
  .nav-quick-search {
    flex: 0 1 220px;
    min-width: 140px;
    margin-left: 8px;
  }
}
/* --- Responsive Layout: Mobile & Tablet --- */
@media (max-width: 768px) {
  .nav-quick-search {
    display: none !important;
  }
  .nav-music-cluster {
    height: 32px;
  }
  .nav-music-pill {
    padding: 0 8px;
  }
  .nav-music-chevron-btn {
    width: 24px;
  }
  .nav-music-popover {
    position: fixed;
    top: calc(56px + env(safe-area-inset-top, 0px));
    right: 10px;
    left: auto;
  }
}
@media (max-width: 380px) {
  .top-nav {
    gap: 4px !important;
    padding-left: 8px !important;
    padding-right: 8px !important;
  }
  .nav-brand {
    gap: 5px !important;
  }
  .nav-brand-img {
    width: 20px !important;
    height: 20px !important;
  }
  .nav-brand span {
    font-size: 14px !important;
  }
  .nav-right {
    gap: 3px !important;
  }
  .nav-music-cluster {
    height: 30px;
  }
  .nav-music-pill {
    padding: 0 6px;
    min-width: 28px;
  }
  .nav-music-chevron-btn {
    width: 20px;
    min-width: 20px;
  }
  .nav-upgrade-btn {
    padding: 4px 6px !important;
    font-size: 10px !important;
    letter-spacing: 0 !important;
  }
  .nav-upgrade-btn .pro-sparkle-dot {
    display: none !important;
  }
  .top-nav .nav-create-btn {
    width: 34px !important;
    height: 34px !important;
    min-width: 34px !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
  }
  .top-nav .nav-create-btn svg {
    width: 19px !important;
    height: 19px !important;
    stroke-width: 2.8 !important;
    margin: 0 !important;
    display: block !important;
  }
  .top-nav .sidebar-toggle-btn {
    width: 30px !important;
    height: 30px !important;
    min-width: 30px !important;
  }
  .top-nav .nav-avatar {
    width: 28px !important;
    height: 28px !important;
    min-width: 28px !important;
  }
}

/* --- In-Deck Addon Switcher Bar --- */
.deck-addon-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  margin-bottom: 18px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}
.deck-addon-bar-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1 1 220px;
}
.deck-addon-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  color: var(--text-secondary) !important;
  font-size: 12.5px;
  font-weight: 600;
  flex-shrink: 0;
  transition:
    border-color 140ms ease,
    color 140ms ease,
    background-color 140ms ease;
}
.deck-addon-back:hover {
  border-color: var(--accent);
  color: var(--text-primary) !important;
}
.deck-addon-deck-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.deck-addon-deck-count {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 11.5px;
  font-weight: 600;
  flex-shrink: 0;
}
.deck-addon-modes {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  max-width: 100%;
}
.deck-addon-modes::-webkit-scrollbar {
  display: none;
}
.deck-addon-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  border-radius: 8px;
  border: 1px solid transparent;
  color: var(--text-secondary) !important;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
  transition:
    background-color 140ms ease,
    color 140ms ease,
    border-color 140ms ease;
}
.deck-addon-link:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary) !important;
}
.deck-addon-link.active,
.deck-addon-link[aria-current="page"] {
  background: var(--accent-dim);
  border-color: var(--accent-border, var(--accent));
  color: var(--accent) !important;
}

/* --- Study Setup Header & Summary Card --- */
.study-setup-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}
.study-toolbar-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.fc-summary-card {
  max-width: 680px;
  margin: 16px auto;
  padding: 28px 24px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  text-align: center;
}
.fc-summary-eyebrow {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 6px;
}
.fc-summary-title {
  font-size: clamp(20px, 2.8vw, 26px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
}
.fc-summary-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}
.fc-summary-stat {
  padding: 14px 10px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.fc-summary-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--accent);
}
.fc-summary-label {
  font-size: 11.5px;
  color: var(--text-secondary);
}
.fc-summary-goal {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  margin-bottom: 18px;
  text-align: left;
}
.fc-summary-goal-row {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.fc-summary-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* --- Curated Learning Resources Hub --- */
.resources-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.resources-eyebrow {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 4px;
}
.resources-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 640px;
  margin-top: 6px;
}
.resources-count-badge {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 12.5px;
  font-weight: 600;
}
.resources-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.resources-tabs-scroll-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  max-width: 100%;
}
.resources-tabs-scroll-arrow {
  display: none;
}
.resources-subject-tabs {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 11px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  position: relative;
  overflow: visible;
  max-width: 100%;
}
.resources-tab-dropdown-wrap {
  position: relative;
  display: inline-flex;
}
.resources-subject-tab-combo {
  display: inline-flex;
  align-items: center;
  border-radius: 8px;
  background: transparent;
  transition:
    background-color 140ms ease,
    color 140ms ease;
  position: relative;
}
.resources-subject-tab-combo.active {
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
}
.resources-subject-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color 140ms ease,
    color 140ms ease,
    border-color 140ms ease;
}
.resources-tab-main-btn {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  padding-right: 8px;
}
.resources-tab-arrow-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 10px 7px 6px;
  border-top-right-radius: 8px;
  border-bottom-right-radius: 8px;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    color 140ms ease,
    background-color 140ms ease;
  line-height: 1;
}
.resources-subject-tab-combo.active .resources-tab-arrow-btn {
  color: var(--accent-contrast, #ffffff);
}
.resources-subject-tab-combo.active .resources-tab-arrow-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}
.resources-subject-tab-combo:not(.active) .resources-tab-arrow-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}
.resources-subject-tab:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}
.resources-subject-tab.active {
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
}
.resources-tab-chevron {
  transition: transform 180ms cubic-bezier(0.2, 0, 0, 1);
  color: var(--text-muted);
  flex-shrink: 0;
}
.resources-subject-tab.active .resources-tab-chevron,
.resources-subject-tab-combo.active .resources-tab-chevron {
  color: currentColor;
}
.resources-tab-dropdown-wrap.is-open .resources-tab-chevron {
  transform: rotate(180deg);
}
.resources-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 240px;
  max-width: min(320px, calc(100vw - 24px));
  max-height: 380px;
  overflow-y: auto;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.42);
  z-index: 1050;
  display: none;
  flex-direction: column;
  gap: 2px;
  animation: resourcesDropdownFade 180ms ease-out;
}
@keyframes resourcesDropdownFade {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.resources-tab-dropdown-wrap.is-open .resources-dropdown-menu {
  display: flex;
}
.resources-dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition:
    background-color 120ms ease,
    color 120ms ease;
}
.resources-dropdown-item:hover {
  background: var(--bg-surface-hover, rgba(255, 255, 255, 0.06));
  color: var(--text-primary);
}
.resources-dropdown-item.is-active {
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
}
.resources-dropdown-divider {
  height: 1px;
  background: var(--border-color);
  margin: 4px 6px;
}
.resources-item-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.resources-item-count {
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--bg-surface);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}
.resources-dropdown-item.is-active .resources-item-count {
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
}
.resources-tab-count {
  padding: 1px 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  font-size: 11px;
  font-weight: 700;
}
.resources-subject-tab:not(.active) .resources-tab-count {
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
}
.resources-search-wrap {
  position: relative;
  flex: 1 1 240px;
  max-width: 360px;
}
.resources-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}
.resources-search-input {
  width: 100%;
  padding: 9px 14px 9px 38px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 13.5px;
  outline: none;
}
.resources-search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.resources-active-filter-bar {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}
.resources-filter-label {
  font-weight: 500;
  color: var(--text-muted);
}
.resources-filter-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 12px;
  border-radius: 999px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-weight: 600;
  font-size: 12.5px;
}
.resources-filter-clear-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.16);
  color: inherit;
  cursor: pointer;
  padding: 0;
  transition:
    background-color 120ms ease,
    transform 120ms ease;
}
.resources-filter-clear-btn:hover {
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
  transform: scale(1.1);
}
.resources-topic-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}
.resources-topic-chips::-webkit-scrollbar {
  display: none;
}
@media (max-width: 640px) {
  .resources-tabs-scroll-wrap {
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
  }
  .resources-subject-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    width: 100%;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    padding-right: 36px;
  }
  .resources-subject-tabs::-webkit-scrollbar {
    display: none;
  }
  .resources-tabs-scroll-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-surface-elevated);
    border: 1.5px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    box-shadow: -4px 0 10px rgba(0, 0, 0, 0.35);
    z-index: 20;
    opacity: 0;
    pointer-events: none;
    transition:
      opacity 160ms ease,
      transform 160ms ease;
  }
  .resources-tabs-scroll-arrow.is-visible {
    opacity: 1;
    pointer-events: auto;
  }
  .resources-tabs-scroll-arrow:active {
    transform: translateY(-50%) scale(0.92);
  }
  .resources-tab-dropdown-wrap[data-dropdown="history"]
    .resources-dropdown-menu {
    right: 0;
    left: auto;
  }
}
.resources-theater-section {
  margin-bottom: 28px;
}
.resources-theater-card {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  overflow: hidden;
}
.resources-theater-frame-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #05070d;
}
.resources-theater-iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.resources-offline-player {
  position: absolute;
  inset: 0;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  color: #f8fafc;
}
.resources-theater-details {
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
}
.resources-theater-badges {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.resources-subject-pill {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.page-main-title {
  font-family: var(--font-display, inherit);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
html[data-ui-mode="cyberpunk"] .page-main-title {
  font-family: var(--font-display) !important;
  font-size: clamp(24px, 3.5vw, 32px) !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 0.06em !important;
  line-height: 1.1 !important;
}
.resources-subject-pill.subject-history,
.resources-subject-pill.is-history {
  background: var(--warning-dim);
  color: var(--warning);
}
.resources-topic-pill,
.resources-channel-pill {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
}
.resources-duration-text {
  font-size: 11.5px;
  color: var(--text-muted);
  font-weight: 600;
  margin-left: auto;
}
.resources-theater-title {
  font-family: var(--font-display, inherit);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}
.resources-theater-summary {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text-secondary);
}
.resources-theater-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 8px;
}
.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.resource-video-card {
  display: flex;
  flex-direction: column;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  overflow: hidden;
  transition:
    transform 150ms ease,
    border-color 150ms ease;
}
.resource-video-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-border, var(--accent));
}
.resource-video-card.is-playing {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.resource-thumb-btn {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  padding: 0;
  border: 0;
  border-bottom: 1px solid var(--border-color);
  background: #090d16;
  overflow: hidden;
  cursor: pointer;
  display: block;
}
.resource-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition:
    transform 200ms ease,
    opacity 200ms ease;
}
.resource-video-card:hover .resource-thumb-img {
  transform: scale(1.03);
}
.resource-thumb-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  color: #e2e8f0;
  font-size: 12px;
  font-weight: 600;
  background: radial-gradient(
    circle at center,
    rgba(59, 130, 246, 0.25),
    #090d16 75%
  );
}
.resource-duration-badge {
  position: absolute;
  right: 8px;
  bottom: 8px;
  padding: 2px 7px;
  border-radius: 5px;
  background: rgba(8, 10, 16, 0.86);
  color: #ffffff;
  font-family: var(--font-mono) !important;
  font-size: 11px;
  font-weight: 700;
}
.resource-now-watching-badge {
  position: absolute;
  left: 8px;
  top: 8px;
  padding: 3px 8px;
  border-radius: 5px;
  background: var(--accent);
  color: var(--accent-contrast, #ffffff);
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.resource-card-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 8px;
}
.resource-card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.resource-level-tag {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--accent-border);
}
.resource-card-title {
  margin: 0;
  font-size: 15px;
  line-height: 1.35;
}
.resource-title-btn {
  background: none;
  border: 0;
  padding: 0;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
}
.resource-title-btn:hover {
  color: var(--accent);
}
.resource-card-channel {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
}
.resource-card-summary {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-secondary);
  flex: 1;
}
.resource-card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 6px;
  flex-wrap: wrap;
}
@media (max-width: 860px) {
  .resources-theater-card {
    grid-template-columns: 1fr;
  }
}

/* --- Settings Tabs & Typography Presets --- */
/* --- Settings View & Account Modal --- */
.settings-view {
  max-width: 760px;
}
.settings-page-header {
  margin-bottom: 20px;
}
.settings-page-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}
.settings-tabs-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px;
  margin-bottom: 24px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  overflow-x: auto;
  scrollbar-width: none;
}
.settings-tabs-bar::-webkit-scrollbar {
  display: none;
}
.settings-tab {
  flex: 1 1 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color 140ms ease,
    color 140ms ease,
    border-color 140ms ease;
}
.settings-tab:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}
.settings-tab.active,
.settings-tab[aria-selected="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast, #ffffff);
}
.settings-tabpanel {
  overflow: visible !important;
  position: relative;
}
.settings-tabpanel:has(.custom-select-wrapper.is-open),
.settings-tabpanel.has-open-select,
.settings-card-overflow-visible {
  overflow: visible !important;
}
.settings-inline-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  flex-wrap: wrap;
}
.uploaded-fonts-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.uploaded-font-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px 6px 12px;
  border-radius: 9px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
}
.uploaded-font-chip.active {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.uploaded-font-select-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 0;
  padding: 2px 0;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  min-width: 0;
  flex: 1;
  text-align: left;
}
.uploaded-font-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.uploaded-font-ext {
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-mono) !important;
  font-size: 10px;
  font-weight: 700;
}
.uploaded-font-delete-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}
.uploaded-font-delete-btn:hover {
  color: var(--danger);
  background: var(--danger-dim);
}
.typography-preview-box {
  width: 100%;
  padding: 16px 18px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.typography-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}
.typography-preview-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.typography-preview-badge {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
}
.typography-preview-term {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}
.typography-preview-def {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
}
.accent-hex-pill {
  padding: 5px 9px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  font-family: var(--font-mono) !important;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.music-transport-cluster {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.goal-options-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.goal-option {
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition:
    border-color 140ms ease,
    background-color 140ms ease,
    color 140ms ease;
}
.goal-option:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}
.goal-option.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast, #ffffff);
}

/* --- Cyberpunk Styling for New Components --- */
html[data-ui-mode="cyberpunk"] .nav-quick-search-input,
html[data-ui-mode="cyberpunk"] .nav-music-popover,
html[data-ui-mode="cyberpunk"] .nav-search-dropdown,
html[data-ui-mode="cyberpunk"] .deck-addon-bar,
html[data-ui-mode="cyberpunk"] .resources-subject-tabs,
html[data-ui-mode="cyberpunk"] .resources-dropdown-menu,
html[data-ui-mode="cyberpunk"] .resources-theater-card,
html[data-ui-mode="cyberpunk"] .resource-video-card,
html[data-ui-mode="cyberpunk"] .settings-tabs-bar,
html[data-ui-mode="cyberpunk"] .typography-preview-box,
html[data-ui-mode="cyberpunk"] .fc-summary-card {
  border-radius: 0 !important;
  border: 2px solid var(--border-color) !important;
  box-shadow: 4px 4px 0px var(--accent) !important;
}
html[data-ui-mode="cyberpunk"] .nav-music-cluster {
  border-radius: 0 !important;
  border: 1.5px solid var(--border-color) !important;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .resources-theater-title {
  font-family: var(--font-display) !important;
  font-weight: 900 !important;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
html[data-ui-mode="cyberpunk"] .settings-tab,
html[data-ui-mode="cyberpunk"] .deck-addon-link,
html[data-ui-mode="cyberpunk"] .resources-subject-tab,
html[data-ui-mode="cyberpunk"] .resources-tab-main-btn,
html[data-ui-mode="cyberpunk"] .resources-tab-arrow-btn,
html[data-ui-mode="cyberpunk"] .resources-subject-tab-combo,
html[data-ui-mode="cyberpunk"] .resources-dropdown-item,
html[data-ui-mode="cyberpunk"] .goal-option {
  border-radius: 0 !important;
  font-family: var(--font-mono) !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  box-shadow: none !important;
}
html[data-ui-mode="cyberpunk"] .resources-filter-tag {
  border-radius: 0 !important;
  font-family: var(--font-mono) !important;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1.5px solid var(--accent) !important;
  box-shadow: none !important;
}

/* --- Study Pages Background Cleanup --- */
html[data-page="flashcards"] .minimal-blackhole-system,
html[data-page="learn"] .minimal-blackhole-system,
html[data-page="test"] .minimal-blackhole-system,
html[data-page="match"] .minimal-blackhole-system,
html[data-page="gravity"] .minimal-blackhole-system,
html[data-page="flashcards"] .minimal-contour-glow,
html[data-page="learn"] .minimal-contour-glow,
html[data-page="test"] .minimal-contour-glow,
html[data-page="match"] .minimal-contour-glow,
html[data-page="gravity"] .minimal-contour-glow,
html[data-page="flashcards"] .mecha-cockpit-backdrop,
html[data-page="learn"] .mecha-cockpit-backdrop,
html[data-page="test"] .mecha-cockpit-backdrop,
html[data-page="match"] .mecha-cockpit-backdrop,
html[data-page="gravity"] .mecha-cockpit-backdrop {
  display: none !important;
}
html[data-page="flashcards"] .minimal-starfield,
html[data-page="learn"] .minimal-starfield,
html[data-page="test"] .minimal-starfield,
html[data-page="match"] .minimal-starfield,
html[data-page="gravity"] .minimal-starfield {
  display: block !important;
}