:root {
  --bg: #f5efe4;
  --bg-soft: #fbf7f1;
  --panel: rgba(255, 252, 246, 0.9);
  --surface: #fffdf9;
  --text: #1d221d;
  --muted: #6d746d;
  --accent: #173d2d;
  --accent-2: #b85f2d;
  --accent-soft: #d9e7d9;
  --line: rgba(23, 61, 45, 0.12);
  --shadow: 0 20px 60px rgba(23, 61, 45, 0.08);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --content-width: 1240px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --hero-text: #465047;
  --eyebrow: #cddfcc;
  --eyebrow-dark: #5d7465;
  --bg-gradient: linear-gradient(180deg, #f5efe4 0%, #edf3ea 100%);
  --bg-glow-1: rgba(184, 95, 45, 0.16);
  --bg-glow-2: rgba(23, 61, 45, 0.14);
  --bg-glow-3: rgba(122, 158, 103, 0.12);
  --header-bg: rgba(245, 239, 228, 0.82);
  --header-border: rgba(23, 61, 45, 0.08);
  --card-border: rgba(255, 255, 255, 0.72);
  --stat-gradient: linear-gradient(135deg, rgba(23, 61, 45, 0.96), rgba(67, 115, 86, 0.9));
}

body[data-theme="paper"] {
  --bg: #f3ebdc;
  --bg-soft: #fffaf0;
  --panel: rgba(255, 250, 242, 0.9);
  --surface: rgba(255, 252, 246, 0.96);
  --text: #2f261f;
  --muted: #78685b;
  --accent: #6f4f3b;
  --accent-2: #b77747;
  --accent-soft: rgba(183, 119, 71, 0.14);
  --line: rgba(111, 79, 59, 0.14);
  --shadow: 0 22px 64px rgba(90, 67, 47, 0.1);
  --hero-text: #5d5147;
  --eyebrow: #d4c1aa;
  --eyebrow-dark: #8a715f;
  --bg-gradient: linear-gradient(180deg, #f6efe4 0%, #efe3d1 100%);
  --bg-glow-1: rgba(199, 145, 98, 0.18);
  --bg-glow-2: rgba(122, 90, 59, 0.12);
  --bg-glow-3: rgba(243, 223, 194, 0.26);
  --header-bg: rgba(247, 239, 228, 0.82);
  --header-border: rgba(111, 79, 59, 0.1);
  --card-border: rgba(255, 250, 244, 0.84);
  --stat-gradient: linear-gradient(135deg, rgba(111, 79, 59, 0.96), rgba(183, 119, 71, 0.88));
}

body[data-theme="ocean"] {
  --bg: #dceef2;
  --bg-soft: #f4fbfc;
  --panel: rgba(241, 250, 252, 0.9);
  --surface: rgba(249, 254, 255, 0.96);
  --text: #16323a;
  --muted: #5d7880;
  --accent: #0d5669;
  --accent-2: #2a94b7;
  --accent-soft: rgba(42, 148, 183, 0.16);
  --line: rgba(13, 86, 105, 0.14);
  --shadow: 0 22px 64px rgba(13, 86, 105, 0.1);
  --hero-text: #40656f;
  --eyebrow: #b9dbe3;
  --eyebrow-dark: #557985;
  --bg-gradient: linear-gradient(180deg, #e6f5f8 0%, #d8ecf2 100%);
  --bg-glow-1: rgba(42, 148, 183, 0.2);
  --bg-glow-2: rgba(13, 86, 105, 0.14);
  --bg-glow-3: rgba(132, 214, 227, 0.2);
  --header-bg: rgba(230, 245, 248, 0.82);
  --header-border: rgba(13, 86, 105, 0.1);
  --card-border: rgba(244, 252, 253, 0.82);
  --stat-gradient: linear-gradient(135deg, rgba(13, 86, 105, 0.96), rgba(42, 148, 183, 0.88));
}

body[data-theme="light"] {
  --bg: #edf3ff;
  --bg-soft: #ffffff;
  --panel: rgba(255, 255, 255, 0.92);
  --surface: rgba(255, 255, 255, 0.98);
  --text: #1d293d;
  --muted: #64748b;
  --accent: #285ea8;
  --accent-2: #58a7ff;
  --accent-soft: rgba(88, 167, 255, 0.16);
  --line: rgba(40, 94, 168, 0.13);
  --shadow: 0 22px 60px rgba(69, 110, 187, 0.1);
  --hero-text: #4d5f7c;
  --eyebrow: #cedcf5;
  --eyebrow-dark: #607392;
  --bg-gradient: linear-gradient(180deg, #f6f9ff 0%, #e8f0ff 100%);
  --bg-glow-1: rgba(88, 167, 255, 0.2);
  --bg-glow-2: rgba(40, 94, 168, 0.12);
  --bg-glow-3: rgba(187, 221, 255, 0.24);
  --header-bg: rgba(246, 249, 255, 0.82);
  --header-border: rgba(40, 94, 168, 0.08);
  --card-border: rgba(255, 255, 255, 0.82);
  --stat-gradient: linear-gradient(135deg, rgba(40, 94, 168, 0.96), rgba(88, 167, 255, 0.86));
}

body[data-theme="dark"] {
  --bg: #0c121b;
  --bg-soft: #111a27;
  --panel: rgba(18, 27, 40, 0.88);
  --surface: rgba(23, 35, 52, 0.94);
  --text: #edf4ff;
  --muted: #95a7c2;
  --accent: #8bb8ff;
  --accent-2: #4d8df7;
  --accent-soft: rgba(139, 184, 255, 0.18);
  --line: rgba(139, 184, 255, 0.16);
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
  --hero-text: #aab8cc;
  --eyebrow: #395170;
  --eyebrow-dark: #7f95b3;
  --bg-gradient: linear-gradient(180deg, #0c121b 0%, #111b29 100%);
  --bg-glow-1: rgba(77, 141, 247, 0.16);
  --bg-glow-2: rgba(139, 184, 255, 0.12);
  --bg-glow-3: rgba(25, 72, 139, 0.18);
  --header-bg: rgba(12, 18, 27, 0.82);
  --header-border: rgba(139, 184, 255, 0.1);
  --card-border: rgba(139, 184, 255, 0.08);
  --stat-gradient: linear-gradient(135deg, rgba(32, 55, 86, 0.98), rgba(77, 141, 247, 0.78));
}

body[data-theme="sage"] {
  --bg: #eef2e8;
  --bg-soft: #f9fbf6;
  --panel: rgba(249, 251, 246, 0.9);
  --surface: rgba(255, 255, 252, 0.96);
  --text: #223127;
  --muted: #687764;
  --accent: #3b5f46;
  --accent-2: #7d9c59;
  --accent-soft: rgba(125, 156, 89, 0.16);
  --line: rgba(59, 95, 70, 0.14);
  --shadow: 0 22px 60px rgba(59, 95, 70, 0.1);
  --hero-text: #50624f;
  --eyebrow: #d3ddc6;
  --eyebrow-dark: #607560;
  --bg-gradient: linear-gradient(180deg, #f4f7ef 0%, #e8efe2 100%);
  --bg-glow-1: rgba(125, 156, 89, 0.18);
  --bg-glow-2: rgba(59, 95, 70, 0.14);
  --bg-glow-3: rgba(184, 205, 154, 0.22);
  --header-bg: rgba(244, 247, 239, 0.82);
  --header-border: rgba(59, 95, 70, 0.08);
  --card-border: rgba(255, 255, 252, 0.82);
  --stat-gradient: linear-gradient(135deg, rgba(59, 95, 70, 0.96), rgba(125, 156, 89, 0.88));
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", "Noto Sans TC", sans-serif;
  color: var(--text);
  background: var(--bg-gradient);
  opacity: 0;
  transition:
    opacity 0.45s var(--ease-out),
    background 0.35s ease,
    color 0.25s ease;
}

body.page-ready {
  opacity: 1;
  transform: none;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  z-index: -1;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(18px);
  opacity: 0.9;
}

body::before {
  width: 42vw;
  height: 42vw;
  min-width: 280px;
  min-height: 280px;
  top: -10vw;
  left: -8vw;
  background: radial-gradient(circle, var(--bg-glow-1) 0%, transparent 70%);
  animation: drift-blob-1 18s ease-in-out infinite alternate;
}

body::after {
  width: 38vw;
  height: 38vw;
  min-width: 240px;
  min-height: 240px;
  right: -10vw;
  top: 30vh;
  background: radial-gradient(circle, var(--bg-glow-2) 0%, transparent 72%);
  animation: drift-blob-2 22s ease-in-out infinite alternate;
}

.page-shell::before {
  content: "";
  position: fixed;
  width: 34vw;
  height: 34vw;
  min-width: 220px;
  min-height: 220px;
  left: 28vw;
  bottom: -12vw;
  z-index: -1;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(20px);
  background: radial-gradient(circle, var(--bg-glow-3) 0%, transparent 72%);
  animation: drift-blob-3 24s ease-in-out infinite alternate;
}

a,
button,
input,
select,
textarea {
  font: inherit;
}

button,
.button-link {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  cursor: pointer;
  font-weight: 700;
  transition:
    transform 0.18s var(--ease-out),
    opacity 0.18s ease,
    background 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease;
}

button:hover,
.button-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

button:active,
.button-link:active {
  transform: translateY(0);
}

button:focus-visible,
.button-link:focus-visible,
.nav-link:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(79, 142, 247, 0.28);
  outline-offset: 2px;
}

.ghost-btn,
.secondary-link {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--line);
}

.primary-btn {
  background: var(--accent-2);
}

.site-header-wrap {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.site-header {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand-block h1,
.page-heading h1,
.hero h1,
.card h2 {
  margin: 0;
}

.brand-subtitle,
.muted {
  color: var(--muted);
}

.nav-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.nav-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

.notification-anchor {
  position: relative;
}

.notify-btn {
  width: 48px;
  min-width: 48px;
  height: 48px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.notify-icon {
  font-size: 20px;
  line-height: 1;
}

.notify-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  background: #d54d4d;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--panel);
}

.notify-btn.active-notify {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.notification-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: min(360px, calc(100vw - 28px));
  max-height: min(72vh, 520px);
  overflow: hidden;
  display: none;
  background: color-mix(in srgb, var(--panel) 92%, var(--bg-soft) 8%);
  border: 1px solid color-mix(in srgb, var(--line) 88%, rgba(255, 255, 255, 0.2));
  border-radius: 20px;
  box-shadow: var(--shadow);
  z-index: 50;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.notification-panel.open {
  display: grid;
}

.notification-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.notification-list {
  display: grid;
  gap: 0;
  max-height: min(62vh, 440px);
  overflow: auto;
}

.notification-item,
.notification-empty {
  width: 100%;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--text);
  box-shadow: none;
  text-align: left;
}

.notification-item {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

.notification-item:last-child {
  border-bottom: none;
}

.notification-item.unread {
  background: color-mix(in srgb, var(--accent-soft) 72%, var(--surface) 28%);
}

.notification-item:hover {
  transform: none;
  box-shadow: none;
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
}

.notification-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.notification-title-row strong {
  color: var(--text);
}

.notification-title-row span,
.notification-meta {
  color: var(--muted);
  font-size: 12px;
}

.notification-message {
  line-height: 1.6;
  margin-bottom: 6px;
  white-space: pre-wrap;
}

.notification-empty {
  padding: 18px 16px;
  color: var(--muted);
}

.notification-page-card {
  display: grid;
  gap: 16px;
}

.notification-inbox-list {
  display: grid;
  gap: 12px;
}

.notification-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
  overflow: hidden;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;
}

.notification-card.unread {
  border-color: color-mix(in srgb, var(--accent) 24%, var(--line));
  background: color-mix(in srgb, var(--accent-soft) 48%, var(--surface) 52%);
}

.notification-card-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
}

.notification-card-toggle {
  width: 100%;
  border: none;
  border-radius: 0;
  background: transparent;
  color: inherit;
  box-shadow: none;
  padding: 16px 18px;
  text-align: left;
  display: grid;
  gap: 10px;
}

.notification-delete-btn {
  margin: 14px 14px 0 0;
  align-self: start;
}

.notification-card-toggle:hover {
  transform: none;
  box-shadow: none;
}

.notification-card-head,
.notification-card-meta,
.notification-card-title-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.notification-card-title-wrap {
  justify-content: flex-start;
  min-width: 0;
}

.notification-card-title-wrap strong {
  min-width: 0;
  overflow-wrap: anywhere;
}

.notification-card-summary {
  color: var(--text);
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.notification-card-detail {
  padding: 0 18px 18px;
}

.notification-card-message {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 90%, white 10%);
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.metric-small {
  font-size: 18px;
  line-height: 1.4;
}

.unread-pill {
  background: color-mix(in srgb, #d54d4d 88%, white 12%);
  color: #fff;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 92px;
  padding: 10px 14px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(23, 61, 45, 0.08);
  white-space: nowrap;
  transition:
    transform 0.18s var(--ease-out),
    background 0.18s ease,
    color 0.18s ease,
    border-color 0.18s ease;
}

body[data-theme="dark"] .nav-link {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(123, 176, 255, 0.14);
  color: var(--text);
}

.nav-link:hover {
  transform: translateY(-1px);
}

.nav-link.active {
  background: var(--accent);
  color: white;
}

.page-shell {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 28px 20px 48px;
}

.page-shell > * {
  animation: rise-in 0.5s var(--ease-out) both;
}

.page-shell > *:nth-child(2) {
  animation-delay: 0.05s;
}

.page-shell > *:nth-child(3) {
  animation-delay: 0.1s;
}

.page-shell > *:nth-child(4) {
  animation-delay: 0.15s;
}

.page-shell > *:nth-child(5) {
  animation-delay: 0.2s;
}

.hero,
.grid,
.stats,
.toolbar,
.practice-actions,
.section-title-row,
.hero-actions,
.hero-badges,
.metrics-grid {
  display: flex;
  gap: 18px;
}

.hero {
  align-items: stretch;
  padding: 18px 0 8px;
}

.hero-copy,
.page-heading {
  display: grid;
  gap: 14px;
}

.hero-text {
  font-size: 18px;
  line-height: 1.8;
  max-width: 56ch;
  margin: 0;
  color: var(--hero-text);
}

.eyebrow {
  margin: 0;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  color: var(--eyebrow);
}

.eyebrow.dark {
  color: var(--eyebrow-dark);
}

.card {
  background: var(--panel);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  transition:
    transform 0.24s var(--ease-out),
    box-shadow 0.24s ease,
    border-color 0.24s ease,
    background 0.24s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 26px 64px rgba(23, 61, 45, 0.1);
}

.auth-card {
  display: grid;
  gap: 14px;
}

.auth-shell {
  display: grid;
  gap: 18px;
  max-width: 620px;
  margin: 0 auto;
}

.auth-switcher-card {
  display: grid;
  gap: 18px;
}

.auth-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  border: 1px solid var(--line);
}

.auth-tab {
  width: 100%;
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
  box-shadow: none;
}

.auth-tab.is-active {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: white;
}

.auth-panel {
  display: none;
}

.auth-panel.is-active {
  display: block;
  animation: fade-in 0.22s ease;
}

.auth-help-link {
  justify-self: start;
  margin-top: -4px;
}

.auth-recovery-card {
  max-width: 620px;
  margin: 0 auto;
}

.text-link {
  width: auto;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  color: var(--accent);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  box-shadow: none;
}

.text-link:hover {
  transform: none;
  box-shadow: none;
  opacity: 0.82;
}

.grid {
  flex-wrap: wrap;
}

.grid.two > *,
.grid.three > * {
  flex: 1 1 320px;
}

.grid-span-two {
  flex: 1 1 100%;
}

.stats,
.metrics-grid {
  flex-wrap: wrap;
  margin: 0 0 18px;
}

.stat,
.metric-card {
  flex: 1 1 220px;
  border-radius: 24px;
  padding: 18px 20px;
  background: var(--stat-gradient);
  color: white;
}

.metric-card {
  min-width: 180px;
}

.stat strong,
.metric-card strong {
  display: block;
  margin-top: 10px;
  font-size: 30px;
}

.metrics-grid-compact .metric-card strong {
  font-size: 24px;
}

.toolbar {
  flex-wrap: wrap;
  align-items: center;
}

.compact-toolbar > * {
  flex: 1 1 180px;
}

label {
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.check-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  flex: 0 0 auto;
}

input,
select,
textarea {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  padding: 12px 14px;
  outline: none;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease,
    color 0.18s ease,
    transform 0.18s ease;
}

body[data-theme="dark"] input,
body[data-theme="dark"] select,
body[data-theme="dark"] textarea {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(23, 61, 45, 0.35);
  box-shadow: 0 0 0 4px rgba(23, 61, 45, 0.08);
}

textarea {
  resize: vertical;
  min-height: 110px;
}

.input-group {
  display: grid;
  gap: 8px;
}

.draft-text-batch-list,
.draft-text-batch-grid,
.draft-text-batch-actions {
  display: grid;
  gap: 12px;
}

.draft-text-batch-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
}

.draft-text-batch-card textarea {
  min-height: 140px;
}

.practice-setup-grid {
  align-items: start;
}

.notification-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.practice-mode-section {
  flex: 1 1 100%;
  width: 100%;
  min-width: 0;
}

.practice-mode-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.practice-mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.practice-mode-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas: "copy toggle";
  gap: 8px 12px;
  align-items: center;
  min-height: 86px;
  height: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 95%, white 5%), color-mix(in srgb, var(--surface) 88%, transparent));
  box-shadow:
    0 12px 22px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.28);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  -webkit-tap-highlight-color: transparent;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease,
    outline-color 0.18s ease;
}

.practice-mode-card:hover {
  border-color: color-mix(in srgb, var(--accent) 36%, var(--line));
  box-shadow:
    0 16px 28px rgba(0, 0, 0, 0.06),
    0 0 0 1px color-mix(in srgb, var(--accent) 10%, transparent);
}

.practice-mode-card.is-active {
  border-color: color-mix(in srgb, var(--accent) 62%, white 38%);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--accent-2) 9%, var(--surface) 91%),
    color-mix(in srgb, var(--accent) 9%, var(--surface) 91%)
  );
  box-shadow:
    0 18px 30px color-mix(in srgb, var(--accent) 18%, transparent),
    0 0 0 2px color-mix(in srgb, var(--accent) 28%, transparent);
}

.practice-mode-card > input {
  grid-area: toggle;
  width: 26px;
  height: 26px;
  margin: 0;
  opacity: 0;
  appearance: none;
  position: relative;
}

.practice-mode-check {
  grid-area: toggle;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1.5px solid color-mix(in srgb, var(--accent) 28%, var(--line));
  background: color-mix(in srgb, var(--surface) 92%, white 8%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    0 8px 14px rgba(0, 0, 0, 0.04);
  transition:
    border-color 0.18s ease,
    background 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease;
}

.practice-mode-check::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  transform: scale(0.6);
  opacity: 0.78;
  transition:
    transform 0.18s ease,
    opacity 0.18s ease,
    background 0.18s ease;
}

.practice-mode-card > input:checked + .practice-mode-check {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  border-color: color-mix(in srgb, var(--accent) 68%, white 32%);
  box-shadow:
    0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent),
    0 10px 18px color-mix(in srgb, var(--accent) 16%, transparent);
  transform: scale(1.02);
}

.practice-mode-card > input:checked + .practice-mode-check::before {
  background: #fff;
  transform: scale(1);
  opacity: 1;
}

.practice-mode-copy {
  grid-area: copy;
  display: grid;
  gap: 4px;
  min-width: 0;
}

.practice-mode-copy strong {
  font-size: 14px;
  line-height: 1.3;
  color: var(--text);
}

.practice-mode-copy span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.inline-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  white-space: nowrap;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
}

.toggle-row input {
  width: auto;
  margin: 0;
}

.toggle-row span {
  line-height: 1.5;
}

.settings-subgrid {
  display: grid;
  gap: 14px;
  margin-top: 8px;
}

.settings-subgrid h3 {
  margin: 4px 0 0;
  font-size: 1rem;
}

.range-with-value {
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-with-value input[type="range"] {
  flex: 1 1 auto;
}

.range-value {
  min-width: 54px;
  text-align: right;
  font-weight: 700;
  color: var(--text);
}

.inline-check input {
  width: auto;
}

.word-card-grid,
.list,
.trend-list {
  display: grid;
  gap: 14px;
}

.list-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hidden {
  display: none;
}

.word-preview-card,
.list-item {
  border-radius: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
}

body[data-theme="dark"] .word-preview-card,
body[data-theme="dark"] .list-item,
body[data-theme="dark"] .detail-section,
body[data-theme="dark"] .question-panel,
body[data-theme="dark"] .result-box,
body[data-theme="dark"] .unit-pills-grid,
body[data-theme="dark"] .practice-mode-card {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(123, 176, 255, 0.16);
  color: var(--text);
}

body[data-theme="dark"] .word-preview-card:hover,
body[data-theme="dark"] .word-preview-card.active {
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.28);
  border-color: rgba(123, 176, 255, 0.32);
}

body[data-theme="dark"] .word-preview-card p,
body[data-theme="dark"] .word-preview-card h3,
body[data-theme="dark"] .word-detail-card h2,
body[data-theme="dark"] .detail-value,
body[data-theme="dark"] .detail-label,
body[data-theme="dark"] .small-text,
body[data-theme="dark"] .muted {
  color: inherit;
}

body[data-theme="dark"] .muted,
body[data-theme="dark"] .detail-label,
body[data-theme="dark"] .word-preview-card h3 span {
  color: var(--muted);
}

body[data-theme="dark"] .pill {
  background: rgba(123, 176, 255, 0.18);
  color: #dce9ff;
}

.compact-item {
  padding: 16px;
}

.word-preview-card {
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.word-preview-card:hover,
.word-preview-card.active {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(23, 61, 45, 0.08);
  border-color: rgba(23, 61, 45, 0.22);
}

.variant-switcher {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 8px 0 4px;
}

.variant-summary {
  display: grid;
  gap: 4px;
  flex: 1 1 auto;
  min-width: 0;
}

.word-topline,
.section-title-row,
.practice-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.word-preview-card h3,
.word-detail-card h2,
.practice-question h2 {
  margin: 0;
}

.word-preview-card h3 span {
  display: block;
  margin-top: 4px;
}

.pill {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.word-detail-card {
  display: grid;
  gap: 18px;
}

.detail-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.detail-section {
  padding: 16px 18px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.detail-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.detail-value {
  line-height: 1.85;
  white-space: pre-line;
}

.word-meaning-preview,
.meaning-list {
  display: grid;
  gap: 8px;
}

.word-meaning-preview.compact,
.meaning-list.compact {
  gap: 5px;
}

.word-meaning-preview {
  margin: 6px 0 2px;
}

.meaning-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 8px;
}

.meaning-item.exam-highlight {
  padding: 8px 10px;
  border-radius: 12px;
  background:
    linear-gradient(180deg, color-mix(in srgb, #fff27a 56%, transparent), color-mix(in srgb, #ffe055 38%, transparent));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, #d9b400 18%, transparent);
}

.meaning-index {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.7;
}

.meaning-text {
  line-height: 1.72;
  overflow-wrap: anywhere;
}

.meaning-more {
  padding-left: 26px;
  color: var(--muted);
  font-size: 13px;
}

.example-list {
  display: grid;
  gap: 6px;
  white-space: normal;
}

.example-block {
  display: grid;
  gap: 2px;
}

.example-block + .example-block {
  margin-top: 0;
  padding-top: 6px;
  border-top: 1px solid var(--line);
}

.exam-highlight-hint {
  margin-top: 8px;
}

.practice-stage {
  min-height: 420px;
  display: grid;
  place-items: center;
}

.focus-panel {
  margin-bottom: 18px;
  animation: focus-panel-in 0.35s var(--ease-out);
}

.focus-actions {
  flex-wrap: nowrap;
  justify-content: flex-end;
}

.focus-actions button {
  width: auto;
  min-width: 52px;
}

.practice-question {
  width: min(760px, 100%);
  display: grid;
  gap: 18px;
}

.progress-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(23, 61, 45, 0.08);
  overflow: hidden;
}

.progress-track span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
}

.question-panel {
  padding: 26px;
  border-radius: 24px;
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
  border: 1px solid var(--line);
  animation: panel-pop 0.28s var(--ease-out);
}

.question-prompt {
  display: grid;
  gap: 6px;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.42;
  margin: 0;
}

.practice-text-line {
  display: block;
}

.practice-text-line + .practice-text-line {
  margin-top: 2px;
}

.choice-grid {
  display: grid;
  gap: 12px;
}

.choice-btn {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  text-align: left;
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
  color: var(--text);
  border: 1px solid var(--line);
  min-height: 58px;
  font-weight: 600;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.04);
  line-height: 1.5;
  white-space: normal;
  overflow-wrap: anywhere;
  position: relative;
  isolation: isolate;
  -webkit-tap-highlight-color: transparent;
}

.choice-label-block {
  display: grid;
  gap: 4px;
  width: 100%;
}

.choice-btn .practice-text-line {
  font-size: 0.98rem;
  line-height: 1.46;
}

.feedback-slot {
  min-height: 58px;
  margin-top: 12px;
}

.answer-feedback {
  width: 100%;
  min-height: 58px;
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  color: var(--text);
}

.answer-feedback-label {
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.72;
}

.answer-feedback-value {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  word-break: break-word;
}

.answer-feedback.correct {
  border-color: rgba(45, 127, 84, 0.26);
  background: rgba(45, 127, 84, 0.1);
  color: #246342;
}

.answer-feedback.wrong {
  border-color: rgba(182, 77, 77, 0.28);
  background: rgba(182, 77, 77, 0.1);
  color: #8f3535;
}

.choice-btn.selected {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: white;
  border-color: color-mix(in srgb, var(--accent) 70%, white 30%);
  box-shadow: 0 14px 24px color-mix(in srgb, var(--accent) 22%, transparent);
}

.choice-btn.correct {
  background: #2d7f54;
  color: white;
  border-color: #2d7f54;
  box-shadow: 0 14px 24px rgba(45, 127, 84, 0.24);
}

.choice-btn.wrong {
  background: #b64d4d;
  color: white;
  border-color: #b64d4d;
  box-shadow: 0 14px 24px rgba(182, 77, 77, 0.22);
}

.typing-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.typing-row input {
  flex: 1 1 320px;
}

.typing-answer-input {
  min-height: 52px;
  font-size: 16px;
}

.typing-answer-input.is-correct {
  border-color: #2d7f54;
  box-shadow: 0 0 0 4px rgba(45, 127, 84, 0.14);
}

.typing-answer-input.is-wrong {
  border-color: #b64d4d;
  box-shadow: 0 0 0 4px rgba(182, 77, 77, 0.12);
}

body[data-theme="dark"] .typing-answer-input.is-correct {
  border-color: #55b77d;
  background: rgba(45, 127, 84, 0.14);
  color: #f3fff8;
  box-shadow:
    0 0 0 4px rgba(45, 127, 84, 0.18),
    0 10px 20px rgba(8, 18, 14, 0.2);
}

body[data-theme="dark"] .typing-answer-input.is-wrong {
  border-color: #dc7676;
  background: rgba(182, 77, 77, 0.14);
  color: #fff5f5;
  box-shadow:
    0 0 0 4px rgba(182, 77, 77, 0.18),
    0 10px 20px rgba(26, 10, 10, 0.22);
}

body[data-theme="dark"] .answer-feedback.correct {
  border-color: rgba(85, 183, 125, 0.38);
  background: rgba(45, 127, 84, 0.16);
  color: #c6f6d8;
}

body[data-theme="dark"] .answer-feedback.wrong {
  border-color: rgba(220, 118, 118, 0.4);
  background: rgba(182, 77, 77, 0.16);
  color: #ffd4d4;
}

.recovery-actions {
  margin-top: 12px;
  align-items: center;
}

.recovery-password-input {
  flex: 1 1 220px;
}

.draft-review-grid {
  align-items: start;
}

.draft-ocr-block,
.draft-meta,
.draft-word-editor {
  display: grid;
  gap: 14px;
}

.draft-ocr-block textarea,
.draft-word-card textarea {
  min-height: 110px;
  resize: vertical;
}

.draft-word-editor {
  margin-top: 18px;
}

.draft-word-card {
  display: grid;
  gap: 14px;
}

.draft-extra-fields {
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.draft-extra-fields summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  list-style: none;
}

.draft-extra-fields summary::-webkit-details-marker {
  display: none;
}

.draft-extra-grid {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.draft-ocr-review {
  margin-top: 12px;
}

.draft-ocr-review textarea {
  min-height: 180px;
  resize: vertical;
  font: 13px/1.55 Consolas, "Cascadia Code", monospace;
  white-space: pre-wrap;
}

.draft-batch-card,
.draft-item-rows {
  display: grid;
  gap: 14px;
}

.draft-batch-shell {
  display: grid;
  gap: 14px;
}

.draft-batch-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  cursor: pointer;
  list-style: none;
}

.draft-batch-summary::-webkit-details-marker {
  display: none;
}

.draft-batch-body {
  display: grid;
  gap: 14px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.batch-meta-grid {
  margin-top: 12px;
}

.result-box {
  padding: 18px;
  border-radius: 18px;
  background: rgba(23, 61, 45, 0.06);
  border: 1px solid rgba(23, 61, 45, 0.08);
  line-height: 1.8;
  animation: fade-in 0.2s ease;
}

.cli-log-box {
  margin: 0;
  padding: 14px 16px;
  border-radius: 16px;
  background: #10161f;
  color: #d8e6ff;
  border: 1px solid rgba(123, 176, 255, 0.18);
  font: 13px/1.65 Consolas, "Cascadia Code", monospace;
  white-space: pre-wrap;
  min-height: 150px;
  max-height: 260px;
  overflow: auto;
}

body[data-theme="light"] .cli-log-box {
  background: #132033;
  color: #e7f0ff;
}

.analytics-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.8fr) minmax(280px, 0.8fr);
  gap: 18px;
  align-items: start;
}

.analytics-chart-card,
.analytics-side-card {
  min-height: 100%;
}

.chart-bars {
  display: flex;
  align-items: end;
  gap: 14px;
  min-height: 240px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.chart-col {
  flex: 1 1 0;
  display: grid;
  gap: 8px;
  justify-items: center;
  min-width: 48px;
}

.chart-stack {
  height: 200px;
  width: 100%;
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 8px;
}

.chart-bar {
  width: min(28px, 40%);
  border-radius: 999px 999px 6px 6px;
}

.correct-bar {
  background: linear-gradient(180deg, #7ecf9d, #2d7f54);
}

.total-bar {
  background: linear-gradient(180deg, #f0b185, #b85f2d);
}

.chart-label,
.chart-meta {
  font-size: 12px;
  color: var(--muted);
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 13px;
}

.chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  display: inline-block;
}

.mini-bar {
  margin: 12px 0 8px;
  height: 10px;
  border-radius: 999px;
  background: rgba(23, 61, 45, 0.08);
  overflow: hidden;
}

.mini-bar span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #d78563, #b64d4d);
}

.mode-bar span {
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
}

.admin-unit-row,
.admin-user-grid {
  display: grid;
  gap: 12px;
}

.activity-table-wrap {
  margin-top: 10px;
  min-width: 0;
}

.activity-table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
}

.admin-activity-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 18px;
  align-items: start;
}

.activity-trend-card {
  display: grid;
  gap: 14px;
  min-width: 0;
  width: min(100%, 420px);
  max-width: 100%;
  justify-self: end;
  overflow: hidden;
}

.activity-table-shell {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
}

.activity-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.activity-table th,
.activity-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
  white-space: nowrap;
}

.activity-table th {
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--surface) 96%, white 4%);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.activity-table tbody tr:last-child td {
  border-bottom: none;
}

.activity-user-cell {
  display: grid;
  gap: 4px;
}

.activity-user-cell strong {
  color: var(--text);
}

.activity-user-cell span {
  color: var(--muted);
  font-size: 13px;
}

.activity-line-chart-wrap {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
  padding: 12px;
  min-height: 0;
  max-width: 100%;
  overflow: hidden;
}

.activity-line-chart {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

.activity-line-chart svg {
  width: 100%;
  height: auto;
  display: block;
}

.activity-grid-line {
  stroke: color-mix(in srgb, var(--line) 80%, transparent);
  stroke-width: 1;
}

.activity-axis-text {
  fill: var(--muted);
  font-size: 11px;
}

.activity-area-path {
  fill: url(#activityAreaFill);
}

.activity-line-path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.activity-line-dot {
  fill: var(--accent-2);
  stroke: var(--surface);
  stroke-width: 2.5;
}

.leaderboard-wrap {
  margin-top: 10px;
}

.leaderboard-list {
  display: grid;
  gap: 12px;
}

.leaderboard-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.leaderboard-rank {
  min-width: 64px;
  padding: 10px 12px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--accent-2) 16%, var(--surface) 84%);
  color: var(--accent);
  font-size: 22px;
  font-weight: 800;
  text-align: center;
}

.leaderboard-main {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.leaderboard-score-block {
  display: flex;
  justify-content: flex-end;
}

.leaderboard-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.leaderboard-metrics span {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 90%, white 10%);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 13px;
}

.leaderboard-section-card {
  display: grid;
  gap: 14px;
}

.leaderboard-compact-list {
  gap: 10px;
}

.leaderboard-compact-card {
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
}

.leaderboard-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.leaderboard-name {
  font-size: 16px;
  line-height: 1.35;
  color: var(--text);
}

.admin-unit-row {
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.admin-user-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 14px;
}

.catalog-source-card {
  display: grid;
  gap: 14px;
}

.catalog-source-editor {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.catalog-unit-card {
  gap: 14px;
  align-items: center;
}

.catalog-inline-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(150px, 190px) auto auto auto;
  gap: 10px;
  align-items: center;
}

.exam-meaning-word-card {
  display: grid;
  gap: 12px;
}

.exam-meaning-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.exam-meaning-chip {
  cursor: pointer;
}

.exam-meaning-chip input {
  display: none;
}

.exam-meaning-chip span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  color: var(--text);
  transition:
    background 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease,
    transform 0.18s ease;
}

.exam-meaning-chip:hover span {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
}

.exam-meaning-chip.is-active span,
.exam-meaning-chip input:checked + span {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent-2) 75%, white 25%), var(--accent));
  color: #fff;
  border-color: var(--accent);
  box-shadow:
    0 12px 22px color-mix(in srgb, var(--accent) 18%, transparent),
    0 0 0 2px color-mix(in srgb, var(--accent) 14%, transparent);
}

.catalog-inline-field {
  min-width: 0;
}

.catalog-inline-field input,
.catalog-source-editor input {
  min-width: 0;
}

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

.draft-field-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.unit-pills-grid {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
  padding: 10px;
  background: color-mix(in srgb, var(--surface) 74%, transparent);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.unit-pills-grid::before,
.unit-pills-grid::after {
  content: "";
  position: absolute;
  inset: auto;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(10px);
  opacity: 0.7;
}

.unit-pills-grid::before {
  width: 120px;
  height: 120px;
  top: -28px;
  left: -18px;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent-2) 22%, transparent) 0%, transparent 72%);
  animation: unit-decor-drift-1 14s ease-in-out infinite alternate;
}

.unit-pills-grid::after {
  width: 108px;
  height: 108px;
  right: -16px;
  bottom: -26px;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 18%, transparent) 0%, transparent 74%);
  animation: unit-decor-drift-2 17s ease-in-out infinite alternate;
}

.unit-pill {
  position: relative;
  z-index: 1;
  cursor: pointer;
  animation: pill-rise 0.38s var(--ease-out) both;
  -webkit-tap-highlight-color: transparent;
}

.unit-pill input {
  display: none;
}

.unit-pill span {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  transition:
    transform 0.18s var(--ease-out),
    background 0.18s ease,
    color 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
  background: color-mix(in srgb, var(--surface) 92%, white 8%);
  color: var(--text);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.04);
  line-height: 1.45;
  position: relative;
  z-index: 1;
}

.unit-pill span small {
  opacity: 0.72;
  font-size: 0.78em;
}

.unit-pill:hover span {
  transform: translateY(-1px) scale(1.01);
  border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.06);
}

.unit-pill input:checked + span {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent-2) 78%, white 22%), var(--accent));
  color: white;
  border-color: var(--accent);
  box-shadow:
    0 12px 22px color-mix(in srgb, var(--accent) 24%, transparent),
    0 0 0 2px color-mix(in srgb, var(--accent) 20%, transparent);
  animation: pill-glow 1.2s ease;
}

.unit-pill:nth-child(2n) {
  animation-delay: 0.03s;
}

.unit-pill:nth-child(3n) {
  animation-delay: 0.06s;
}

.unit-pill:nth-child(4n) {
  animation-delay: 0.09s;
}

body[data-theme="dark"] .unit-pill span {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-color: rgba(139, 184, 255, 0.18);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.14);
}

body[data-theme="dark"] .unit-pill input:checked + span {
  color: #fff;
  border-color: rgba(139, 184, 255, 0.8);
  box-shadow:
    0 12px 24px rgba(8, 20, 40, 0.38),
    0 0 0 2px rgba(139, 184, 255, 0.24);
}

body[data-theme="light"] .choice-btn,
body[data-theme="dark"] .choice-btn {
  color: var(--text);
}

body[data-theme="light"] .practice-mode-card,
body[data-theme="dark"] .practice-mode-card {
  color: var(--text);
}

body[data-theme="light"] .practice-mode-card,
body[data-theme="light"] .choice-btn,
body[data-theme="light"] .unit-pill span {
  border-color: rgba(40, 94, 168, 0.14);
}

body[data-theme="light"] .practice-mode-card.is-active {
  border-color: rgba(40, 94, 168, 0.46);
  box-shadow:
    0 14px 26px rgba(48, 114, 204, 0.14),
    0 0 0 2px rgba(88, 167, 255, 0.16);
}

body[data-theme="dark"] .choice-btn:not(.selected):not(.correct):not(.wrong) {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(139, 184, 255, 0.18);
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.16);
}

body[data-theme="dark"] .practice-mode-card {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(139, 184, 255, 0.18);
}

body[data-theme="dark"] .practice-mode-card.is-active {
  background: linear-gradient(180deg, rgba(77, 141, 247, 0.16), rgba(23, 35, 52, 0.94));
  border-color: rgba(139, 184, 255, 0.64);
  box-shadow:
    0 16px 28px rgba(0, 0, 0, 0.24),
    0 0 0 2px rgba(139, 184, 255, 0.2);
}

body[data-theme="dark"] .practice-mode-check {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(139, 184, 255, 0.34);
}

body[data-theme="dark"] .practice-mode-card > input:checked + .practice-mode-check {
  border-color: rgba(139, 184, 255, 0.82);
}

body[data-theme="dark"] .choice-btn.selected,
body[data-theme="dark"] .choice-btn.correct,
body[data-theme="dark"] .choice-btn.wrong,
body[data-theme="light"] .choice-btn.selected,
body[data-theme="light"] .choice-btn.correct,
body[data-theme="light"] .choice-btn.wrong {
  color: #fff;
}

body[data-theme="dark"] .choice-btn.selected {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  border-color: rgba(139, 184, 255, 0.8);
  box-shadow:
    0 14px 26px rgba(0, 0, 0, 0.28),
    0 0 0 2px rgba(139, 184, 255, 0.18);
}

body[data-theme="dark"] .choice-btn.correct {
  background: #2d7f54;
  border-color: #2d7f54;
  box-shadow:
    0 14px 24px rgba(12, 42, 28, 0.34),
    0 0 0 1px rgba(89, 189, 129, 0.12);
}

body[data-theme="dark"] .choice-btn.wrong {
  background: #b64d4d;
  border-color: #b64d4d;
  box-shadow:
    0 14px 24px rgba(61, 17, 17, 0.34),
    0 0 0 1px rgba(231, 111, 111, 0.12);
}

body[data-theme="light"] .choice-btn.selected {
  border-color: rgba(40, 94, 168, 0.55);
  box-shadow:
    0 14px 24px rgba(48, 114, 204, 0.16),
    0 0 0 2px rgba(88, 167, 255, 0.14);
}

body[data-theme="paper"] .unit-pill span {
  background: rgba(255, 250, 244, 0.94);
}

body[data-theme="ocean"] .unit-pill span {
  background: rgba(248, 254, 255, 0.94);
}

body[data-theme="light"] .unit-pill span {
  background: rgba(255, 255, 255, 0.96);
}

body[data-theme="sage"] .unit-pill span {
  background: rgba(252, 255, 248, 0.94);
}

body[data-theme="paper"] .unit-pill input:checked + span {
  background: linear-gradient(135deg, #b77747, #6f4f3b);
  color: #fff7ef;
  border-color: #6f4f3b;
  box-shadow:
    0 12px 22px rgba(111, 79, 59, 0.24),
    0 0 0 2px rgba(183, 119, 71, 0.16);
}

body[data-theme="ocean"] .unit-pill input:checked + span {
  background: linear-gradient(135deg, #2a94b7, #0d5669);
  color: #f4fdff;
  border-color: #0d5669;
  box-shadow:
    0 12px 22px rgba(13, 86, 105, 0.22),
    0 0 0 2px rgba(42, 148, 183, 0.16);
}

body[data-theme="light"] .unit-pill input:checked + span {
  background: linear-gradient(135deg, #58a7ff, #285ea8);
  color: #f7fbff;
  border-color: #285ea8;
  box-shadow:
    0 12px 22px rgba(40, 94, 168, 0.22),
    0 0 0 2px rgba(88, 167, 255, 0.16);
}

body[data-theme="sage"] .unit-pill input:checked + span {
  background: linear-gradient(135deg, #7d9c59, #3b5f46);
  color: #f7fbf0;
  border-color: #3b5f46;
  box-shadow:
    0 12px 22px rgba(59, 95, 70, 0.22),
    0 0 0 2px rgba(125, 156, 89, 0.16);
}

body[data-theme="paper"] .practice-mode-card,
body[data-theme="ocean"] .practice-mode-card,
body[data-theme="sage"] .practice-mode-card {
  color: var(--text);
}

body[data-theme="paper"] .choice-btn,
body[data-theme="ocean"] .choice-btn,
body[data-theme="sage"] .choice-btn {
  color: var(--text);
}

.wrong-summary {
  text-align: left;
  margin-top: 20px;
  padding: 16px;
  background: color-mix(in srgb, var(--surface) 92%, white 8%);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.summary-list {
  text-align: left;
  margin: 20px 0;
}

.summary-item {
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
  border-left: 4px solid #ff4d4f;
  padding: 12px;
  margin-bottom: 10px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.summary-word-row {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 5px;
  font-size: 1.1rem;
}

.summary-eng-link {
  color: inherit;
  text-decoration: none;
}

.summary-eng-link strong {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
}

.summary-eng-link strong::after {
  content: "→";
  font-size: 0.9em;
}

.summary-zh {
  color: var(--accent);
  font-weight: 500;
  display: grid;
  gap: 2px;
  margin-top: 4px;
  line-height: 1.45;
}

.summary-eng-link strong::after {
  content: "↗";
}

.summary-ans-row {
  display: grid;
  gap: 4px;
  font-size: 0.92rem;
  color: var(--muted);
}

.your-ans-value {
  color: #ff4d4f;
  margin-left: 0;
  display: grid;
  gap: 2px;
  line-height: 1.42;
  word-break: break-word;
}

.practice-result-container {
  text-align: center;
  padding: 20px;
}

.score-circle {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 5px solid var(--accent-2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 20px auto;
}

.score-num {
  font-size: 2rem;
  font-weight: bold;
  color: var(--accent-2);
}

.score-unit {
  margin-left: 2px;
  color: var(--accent-2);
}

.perfect-box,
.empty {
  color: var(--muted);
}

.word-list-status {
  margin-top: 16px;
  min-height: 20px;
  text-align: center;
}

.message-bar {
  position: fixed;
  top: 72px;
  right: 20px;
  z-index: 10000;
  background: var(--accent-2);
  color: white;
  padding: 12px 20px;
  border-radius: 16px;
  opacity: 0;
  transform: translateY(12px);
  transition: 0.24s ease;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  max-width: min(320px, calc(100vw - 24px));
  white-space: normal;
  overflow-wrap: anywhere;
}

.message-bar.show {
  opacity: 1;
  transform: translateY(0);
}

.small-text {
  font-size: 13px;
}

.practice-summary-line,
.question-prompt,
.detail-value,
.summary-ans-row,
.summary-zh,
.brand-subtitle,
.muted {
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.list-item,
.detail-section,
.question-panel,
.summary-item,
.answer-feedback {
  overflow-wrap: anywhere;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes panel-pop {
  from {
    opacity: 0;
    transform: scale(0.985) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes focus-panel-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes drift-blob-1 {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(6vw, 5vh, 0) scale(1.08);
  }
}

@keyframes drift-blob-2 {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(-7vw, -6vh, 0) scale(1.12);
  }
}

@keyframes drift-blob-3 {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(5vw, -4vh, 0) scale(1.1);
  }
}

@keyframes pill-rise {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes pill-glow {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 0%, transparent);
  }

  40% {
    transform: scale(1.04);
    box-shadow: 0 0 0 10px color-mix(in srgb, var(--accent) 0%, transparent);
  }

  100% {
    transform: scale(1);
    box-shadow: 0 12px 22px color-mix(in srgb, var(--accent) 24%, transparent);
  }
}

@keyframes unit-decor-drift-1 {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(18px, 12px, 0) scale(1.08);
  }
}

@keyframes unit-decor-drift-2 {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(-16px, -14px, 0) scale(1.1);
  }
}

@media (max-width: 1080px) {
  .analytics-layout {
    grid-template-columns: 1fr;
  }

  .list-two {
    grid-template-columns: 1fr;
  }

  .practice-mode-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-activity-layout {
    grid-template-columns: 1fr;
  }

  .activity-trend-card {
    width: 100%;
    justify-self: stretch;
  }
}

@media (max-width: 960px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 16px;
  }

  .nav-row {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 4px;
    row-gap: 0;
    scrollbar-width: none;
  }

  .nav-row::-webkit-scrollbar {
    display: none;
  }

  .nav-link,
  .nav-row button {
    flex: 0 0 auto;
  }

  .nav-tools {
    margin-left: 0;
    flex: 0 0 auto;
    padding-left: 4px;
  }
}

@media (max-width: 720px) {
  .admin-user-grid {
    grid-template-columns: 1fr;
  }

  .catalog-source-editor,
  .catalog-inline-actions {
    grid-template-columns: 1fr;
  }

  .exam-meaning-chip-list {
    display: grid;
  }

  .leaderboard-card {
    grid-template-columns: 1fr;
  }

  .leaderboard-score-block {
    justify-content: flex-start;
  }

  .draft-field-grid {
    grid-template-columns: 1fr;
  }

  .summary-word-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .notification-form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 22px 14px 38px;
  }

  .card {
    padding: 18px;
    border-radius: 22px;
  }

  button,
  .button-link {
    width: 100%;
  }

  .nav-row .nav-link,
  .nav-row button,
  .nav-row .button-link {
    width: auto;
  }

  .nav-row .nav-link {
    min-width: 78px;
    padding: 9px 12px;
    font-size: 14px;
  }

  .nav-tools,
  .notification-anchor,
  .notify-btn,
  #logoutBtn {
    width: auto;
  }

  .notification-panel {
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) + 88px);
    left: 12px;
    right: 12px;
    width: auto;
    max-width: none;
    border-width: 1.5px;
    background: color-mix(in srgb, var(--surface) 96%, var(--bg-soft) 4%);
    box-shadow:
      0 20px 36px rgba(0, 0, 0, 0.18),
      0 0 0 1px color-mix(in srgb, var(--line) 72%, transparent);
    max-height: min(68vh, 520px);
  }

  .notification-panel-head,
  .notification-item,
  .notification-empty {
    background: transparent;
  }

  .toolbar,
  .practice-actions,
  .metrics-grid {
    flex-direction: column;
  }

  .focus-actions {
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .focus-actions button {
    width: auto;
    flex: 0 0 auto;
  }

  .compact-toolbar > *,
  .grid.two > *,
  .grid.three > * {
    flex-basis: 100%;
  }

  .practice-mode-grid {
    grid-template-columns: 1fr;
  }

  .practice-mode-card {
    min-height: 78px;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 10px;
  }

  .practice-mode-card > input,
  #practiceLimit,
  #practiceSource {
    font-size: 16px;
  }

  .question-panel {
    padding: 20px 16px;
  }

  .question-prompt {
    font-size: clamp(22px, 7vw, 28px);
    gap: 4px;
  }

  .typing-row {
    flex-direction: row;
    align-items: stretch;
    gap: 8px;
  }

  .typing-row input {
    width: auto;
    min-width: 0;
    flex: 1 1 auto;
  }

  .typing-row button,
  .choice-btn {
    width: 100%;
  }

  .typing-answer-input {
    min-height: 38px;
    padding: 8px 10px;
    font-size: 16px;
  }

  .choice-btn .practice-text-line,
  .summary-zh,
  .your-ans-value,
  .answer-feedback-value {
    font-size: 0.95rem;
  }

  #typingSubmitBtn {
    width: auto;
    flex: 0 0 auto;
    padding: 8px 12px;
  }

  .word-topline,
  .section-title-row,
  .practice-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .detail-actions {
    width: 100%;
  }

  .detail-actions .ghost-btn {
    width: 100%;
  }

  .message-bar {
    border-radius: 14px;
    max-width: min(320px, calc(100vw - 28px));
  }

  .message-bar.show {
    transform: translateY(0);
  }

  .notification-card-head,
  .notification-card-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .notification-card-toggle,
  .notification-card-detail {
    padding-left: 14px;
    padding-right: 14px;
  }
}

.tutorial-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: none;
  pointer-events: none;
}

.tutorial-overlay.show {
  display: block;
}

.tutorial-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 12, 19, 0.28);
  pointer-events: none;
}

.tutorial-tip {
  position: fixed;
  width: min(280px, calc(100vw - 32px));
  padding: 12px 14px;
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 94%, white 6%);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  pointer-events: none;
  z-index: 9004;
}

.tutorial-step-label {
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tutorial-tip-title {
  margin: 0 0 4px;
  font-size: 1rem;
  line-height: 1.35;
}

.tutorial-tip-body {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
}

.tutorial-action-hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.tutorial-tip-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
  pointer-events: auto;
}

.tutorial-tip-next {
  padding: 8px 12px;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  pointer-events: auto;
}

.tutorial-tip-secondary {
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 88%, white 12%);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  pointer-events: auto;
}

.tutorial-tip.requires-click .tutorial-tip-next {
  display: none;
}

.tutorial-target {
  position: relative;
  z-index: 9002 !important;
  outline: 3px solid color-mix(in srgb, var(--accent-2) 72%, white 28%) !important;
  outline-offset: 4px;
  box-shadow: 0 0 0 8px rgba(255, 255, 255, 0.14), 0 12px 28px rgba(0, 0, 0, 0.16);
}

body[data-theme="dark"] .tutorial-tip {
  background: color-mix(in srgb, var(--surface) 96%, #0b1220 4%);
}

body[data-theme="dark"] .tutorial-tip-secondary {
  background: color-mix(in srgb, var(--surface) 92%, #0f1724 8%);
  color: var(--text);
  border-color: var(--line);
}

@media (max-width: 760px) {
  .tutorial-tip {
    width: auto;
    left: 12px;
    right: 12px;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 12px);
    padding: 12px;
    border-radius: 16px;
  }

  .tutorial-tip-actions {
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .tutorial-tip-next {
    order: -1;
    width: 100%;
  }

  .tutorial-tip-secondary {
    flex: 1 1 calc(50% - 4px);
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  body {
    opacity: 1;
    transform: none;
  }
}