:root {
  --bg: #efe4d3;
  --paper: rgba(255, 251, 245, 0.92);
  --paper-strong: rgba(255, 248, 239, 0.98);
  --ink: #1e2731;
  --muted: #61656c;
  --line: rgba(40, 46, 56, 0.11);
  --scarlet: #b24d3c;
  --scarlet-strong: #8c382b;
  --teal: #4f766e;
  --gold: #d2a855;
  --sky: #d4e4e4;
  --moss: #7a8b65;
  --indigo: #42556d;
  --shadow: 0 24px 64px rgba(65, 52, 41, 0.12);
  --radius-lg: 30px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --max-width: 1260px;
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0) rotate(18deg);
  }
  to {
    transform: translate3d(-8px, 8px, 0) rotate(24deg);
  }
}

@keyframes pulseGlow {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(178, 77, 60, 0.14);
  }
  50% {
    box-shadow: 0 0 0 14px rgba(178, 77, 60, 0);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Noto Sans TC", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(210, 168, 85, 0.24), transparent 28%),
    radial-gradient(circle at top right, rgba(79, 118, 110, 0.16), transparent 26%),
    linear-gradient(180deg, #eadbc7 0%, #f4ede2 36%, #f8f4ec 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.52;
  background-image:
    linear-gradient(rgba(66, 85, 109, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(66, 85, 109, 0.03) 1px, transparent 1px),
    linear-gradient(180deg, rgba(178, 77, 60, 0.03) 0, rgba(178, 77, 60, 0.03) 2px, transparent 2px, transparent 52px);
  background-size: 44px 44px, 44px 44px, 100% 54px;
}

.page-shell {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
  padding: 24px 0 72px;
  position: relative;
  z-index: 1;
}

.hero,
.section {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 254, 250, 0.97), rgba(249, 243, 235, 0.9)),
    var(--paper);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  padding: 24px;
}

.hero::before {
  content: "日語練習";
  position: absolute;
  left: -16px;
  top: 48px;
  padding: 10px 18px;
  border-radius: 999px;
  color: #fff7f1;
  background: linear-gradient(135deg, rgba(178, 77, 60, 0.95), rgba(140, 56, 43, 0.95));
  font-family: "Noto Serif TC", "Noto Sans TC", serif;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  transform: rotate(-8deg);
  box-shadow: 0 16px 32px rgba(140, 56, 43, 0.2);
}

.hero::after {
  content: "";
  position: absolute;
  right: -36px;
  top: -58px;
  width: 220px;
  height: 220px;
  border-radius: 32px;
  transform: rotate(18deg);
  background:
    radial-gradient(circle, rgba(210, 168, 85, 0.18) 0 36%, transparent 37%),
    linear-gradient(135deg, rgba(79, 118, 110, 0.14), rgba(210, 168, 85, 0.05));
  animation: drift 10s ease-in-out infinite alternate;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.brand-kicker,
.section-kicker,
.eyebrow,
.stat-label,
.panel-kicker {
  margin: 0;
  color: var(--scarlet);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.brand-name,
h1,
h2,
h3,
.metric-card strong,
.button,
.practice-card-header strong,
.queue-item strong,
.session-item strong {
  font-family: "Noto Serif TC", "Noto Sans TC", serif;
}

.brand-name {
  font-size: 1.28rem;
  font-weight: 900;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.ghost-link {
  position: relative;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  opacity: 0.86;
  padding: 8px 0;
}

.ghost-link:hover,
.ghost-link:focus-visible {
  opacity: 1;
}

.ghost-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, var(--scarlet), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.ghost-link:hover::after,
.ghost-link:focus-visible::after {
  transform: scaleX(1);
}

#import-data {
  display: none;
}

.button {
  appearance: none;
  border: 0;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 18px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff9f4;
  background: linear-gradient(135deg, var(--scarlet), var(--scarlet-strong));
  box-shadow: 0 14px 28px rgba(140, 56, 43, 0.22);
}

.button-secondary {
  color: var(--teal);
  background: rgba(79, 118, 110, 0.12);
}

.button-outline {
  color: var(--ink);
  border: 1px solid rgba(40, 46, 56, 0.15);
  background: transparent;
}

.landing-practice-grid,
.session-grid,
.dashboard-grid,
.planner-grid,
.library-grid,
.records-grid,
.admin-preview-grid,
.practice-columns {
  display: grid;
  gap: 16px;
}

.landing-practice-grid {
  grid-template-columns: 1.12fr 0.88fr;
  align-items: stretch;
}

.landing-side-stack {
  display: grid;
  gap: 14px;
}

.landing-topline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.landing-status-panel,
.landing-action-panel,
.landing-control-panel {
  padding: 18px;
}

.landing-stat-grid {
  display: grid;
  gap: 12px;
}

.landing-stat {
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 248, 240, 0.74));
}

.landing-stat span {
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--scarlet);
}

.landing-stat strong {
  font-size: 1.08rem;
  color: var(--ink);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: rgba(255, 255, 255, 0.76);
  color: var(--indigo);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.hero-badge.subtle {
  background: rgba(212, 228, 228, 0.52);
  color: var(--teal);
}

h1 {
  margin: 12px 0 16px;
  max-width: 9ch;
  font-size: clamp(3rem, 5.7vw, 5.8rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
}

h2 {
  margin: 8px 0 12px;
  font-size: clamp(1.8rem, 3vw, 2.9rem);
  line-height: 1.08;
}

h3 {
  margin: 0;
  font-size: 1.14rem;
}

.hero-text,
.section-heading p,
.panel-head p,
.metric-card p,
.hero-stat p,
.route-chip p,
.flow-step p,
.feature-list li,
.practice-card-body p,
.queue-item p,
.session-item p,
.library-item p,
.admin-copy,
label,
textarea,
input,
select,
li {
  color: var(--muted);
}

.hero-text {
  max-width: 66ch;
  font-size: 1.05rem;
  line-height: 1.78;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.hero-rhythm {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 6px;
}

.rhythm-chip {
  padding: 16px;
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 246, 237, 0.74));
  border: 1px solid rgba(40, 46, 56, 0.08);
}

.rhythm-chip span,
.flow-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--scarlet);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.rhythm-chip strong,
.flow-step strong {
  display: block;
  margin: 10px 0 8px;
  font-size: 1.12rem;
  color: var(--ink);
}

.rhythm-chip p {
  margin: 0;
}

.rhythm-chip.accent {
  background: linear-gradient(135deg, rgba(255, 242, 219, 0.98), rgba(241, 233, 212, 0.8));
}

.hero-quick-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill-action {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(40, 46, 56, 0.1);
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.pill-action:hover,
.pill-action:focus-visible {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(178, 77, 60, 0.18);
}

.spotlight-card,
.quest-panel {
  position: relative;
  padding: 20px;
  border-radius: 24px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background:
    radial-gradient(circle at top right, rgba(212, 228, 228, 0.26), transparent 28%),
    radial-gradient(circle at bottom left, rgba(210, 168, 85, 0.2), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(251, 244, 235, 0.84));
}

.spotlight-card-large {
  min-height: 100%;
}

.landing-control-panel .theme-switch-actions {
  justify-content: flex-start;
}

.spotlight-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.spotlight-card h2 {
  margin: 4px 0 6px;
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  line-height: 1.2;
  color: var(--ink);
}

.spotlight-caption {
  margin: 0;
  color: var(--muted);
}

.spotlight-jp {
  margin: 20px 0 10px;
  font-family: "Noto Serif TC", "Noto Sans TC", serif;
  font-size: clamp(1.55rem, 2.8vw, 2.25rem);
  line-height: 1.55;
  color: var(--ink);
}

.spotlight-reading {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--indigo);
}

.spotlight-support-label,
.practice-card-sentence-label,
.audio-status-label {
  display: inline-flex;
  margin-bottom: 6px;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--scarlet);
}

.spotlight-support-text,
.practice-sentence-zh {
  display: block;
  color: var(--indigo);
  line-height: 1.7;
}

.jp-ruby,
.spotlight-japanese,
.practice-japanese,
.practice-sentence-jp,
.audio-status-japanese {
  ruby-position: over;
  font-style: normal;
}

.jp-ruby rt,
.spotlight-japanese rt,
.practice-japanese rt,
.practice-sentence-jp rt,
.audio-status-japanese rt {
  margin-bottom: 4px;
  font-size: 0.72rem;
  line-height: 1.4;
  letter-spacing: 0.08em;
  color: var(--scarlet);
}

.spotlight-translation {
  margin: 14px 0 0;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 248, 239, 0.78);
  color: var(--ink);
  line-height: 1.7;
}

.spotlight-actions,
.spotlight-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.spotlight-actions {
  margin-top: 16px;
}

.spotlight-meta {
  margin-top: 12px;
}

.spotlight-meta-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--indigo);
  font-size: 0.84rem;
  font-weight: 700;
}

.spotlight-meta-chip.muted {
  color: var(--scarlet);
}

.quest-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.quest-button,
.mode-card {
  appearance: none;
  width: 100%;
  padding: 16px;
  text-align: left;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 248, 240, 0.78));
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.quest-button:hover,
.quest-button:focus-visible,
.mode-card:hover,
.mode-card:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(178, 77, 60, 0.18);
  box-shadow: 0 12px 24px rgba(65, 52, 41, 0.08);
}

.quest-button strong,
.mode-card strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 1rem;
}

.quest-button span,
.mode-card p {
  display: block;
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.practice-mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.mode-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 10px;
  border-radius: 50%;
  color: var(--scarlet);
  background: rgba(178, 77, 60, 0.1);
  font-size: 0.82rem;
  font-weight: 900;
}

.panel.is-emphasized {
  border-color: rgba(178, 77, 60, 0.28);
  animation: pulseGlow 1.5s ease;
}

.section {
  margin-top: 22px;
  padding: 28px;
}

.section::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 24px;
  width: 92px;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--scarlet), rgba(210, 168, 85, 0.3));
}

.section-heading {
  margin-bottom: 22px;
}

.panel,
.metric-card,
.mini-panel {
  position: relative;
  overflow: hidden;
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 247, 239, 0.78));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.56);
}

.metric-card::before,
.panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--scarlet), var(--gold), rgba(79, 118, 110, 0.52));
}

.panel-head {
  margin-bottom: 18px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.metric-card span {
  display: block;
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--muted);
}

.metric-card strong {
  display: block;
  margin: 12px 0;
  font-size: 2.45rem;
  color: var(--ink);
}

.session-grid {
  grid-template-columns: 0.95fr 1.05fr;
}

.practice-flow {
  display: grid;
  gap: 12px;
}

.flow-step {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: rgba(255, 255, 255, 0.66);
}

.route-actions {
  margin-top: 16px;
}

.practice-columns {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 16px;
}

.theme-studio-panel {
  margin-bottom: 16px;
}

.theme-control-stack {
  display: grid;
  gap: 10px;
}

.theme-switch-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.theme-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.theme-overview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.theme-overview-card {
  display: grid;
  gap: 8px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(250, 243, 234, 0.8));
}

.theme-overview-card span {
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--scarlet);
}

.theme-overview-card strong {
  font-size: 1rem;
  color: var(--ink);
}

.theme-overview-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.theme-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(40, 46, 56, 0.12);
  background: rgba(255, 255, 255, 0.84);
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 800;
  cursor: pointer;
}

.theme-chip.is-active {
  color: #fff8f2;
  border-color: transparent;
  background: linear-gradient(135deg, var(--scarlet), var(--scarlet-strong));
  box-shadow: 0 12px 24px rgba(140, 56, 43, 0.16);
}

.audio-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(247, 241, 232, 0.74));
}

.audio-status-copy {
  display: grid;
  gap: 6px;
  flex: 1;
}

.audio-status-bar strong {
  font-size: 0.96rem;
  color: var(--indigo);
}

.audio-status-bar p {
  margin: 0;
  font-size: 0.88rem;
}

.audio-status-line {
  min-width: 230px;
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid rgba(178, 77, 60, 0.12);
  background: rgba(255, 255, 255, 0.72);
}

.poststudy-assistant {
  margin-bottom: 16px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px dashed rgba(178, 77, 60, 0.24);
  background: linear-gradient(180deg, rgba(255, 249, 242, 0.92), rgba(250, 240, 228, 0.78));
}

.poststudy-assistant strong {
  display: block;
  margin-bottom: 6px;
  color: var(--indigo);
}

.poststudy-assistant p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--muted);
}

.practice-card-list,
.library-list,
.history-list,
.queue-list,
.weekly-review-cards {
  display: grid;
  gap: 12px;
}

.practice-card,
.library-item,
.queue-item,
.session-item,
.week-card {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 248, 241, 0.76));
}

.practice-card-header,
.queue-item-head,
.session-item-head,
.week-card-head,
.week-card-meta,
.planner-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.practice-card-header strong,
.queue-item strong,
.session-item strong,
.week-card-head strong {
  font-size: 1.02rem;
}

.practice-card-type,
.status-chip,
.memory-badge,
.month-badge strong,
.weekly-note-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 900;
  border: 1px solid rgba(178, 77, 60, 0.12);
  background: rgba(255, 255, 255, 0.82);
  color: var(--scarlet);
}

.practice-card-main {
  margin: 10px 0 8px;
  font-size: 1.26rem;
  line-height: 1.45;
  color: var(--ink);
}

.practice-card-sentence {
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px dashed rgba(178, 77, 60, 0.16);
  background: rgba(255, 250, 244, 0.8);
}

.practice-card-sub,
.practice-card-tags,
.library-item-tags,
.session-item-meta,
.week-card-meta,
.month-badge span {
  font-size: 0.88rem;
  color: var(--muted);
}

.practice-card-reading,
.library-item-reading {
  display: block;
  font-size: 0.84rem;
  color: var(--indigo);
  line-height: 1.7;
}

.is-hidden {
  display: none !important;
}

.practice-card-body {
  display: grid;
  gap: 8px;
}

.practice-card-actions,
.library-item-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.tiny-button {
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid rgba(40, 46, 56, 0.12);
  background: rgba(255, 255, 255, 0.86);
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 800;
  cursor: pointer;
}

.tiny-button.is-active {
  color: #fff8f2;
  border-color: transparent;
  background: linear-gradient(135deg, var(--scarlet), var(--scarlet-strong));
}

.tiny-button.secondary-active {
  color: #f7fffd;
  border-color: transparent;
  background: linear-gradient(135deg, var(--teal), #395f59);
}

.practice-card-detail,
.library-item-detail {
  display: none;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(40, 46, 56, 0.12);
}

.practice-card.is-revealed .practice-card-detail,
.library-item.is-revealed .library-item-detail {
  display: block;
}

.dashboard-grid {
  grid-template-columns: 1fr 1fr;
  margin-top: 16px;
}

.gauge-wrap {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 22px;
  align-items: center;
}

.gauge-ring {
  display: grid;
  place-items: center;
  width: 220px;
  height: 220px;
  margin: 0 auto;
  border-radius: 50%;
  background:
    radial-gradient(closest-side, rgba(255, 255, 255, 0.9) 73%, transparent 74% 100%),
    conic-gradient(var(--scarlet) 0deg, rgba(178, 77, 60, 0.14) 0deg 360deg);
}

.gauge-inner {
  display: grid;
  gap: 4px;
  text-align: center;
}

.gauge-inner strong {
  font-size: 2.2rem;
}

.compact-list {
  margin: 14px 0 0;
  padding-left: 18px;
}

.planner-grid {
  grid-template-columns: 1.25fr 0.95fr;
  margin-top: 16px;
}

.month-badge,
.weekly-note-badge {
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
  min-width: 148px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(178, 77, 60, 0.12);
  background: linear-gradient(180deg, rgba(255, 248, 240, 0.95), rgba(247, 239, 227, 0.86));
}

.calendar-tools {
  display: grid;
  gap: 10px;
  justify-items: end;
}

.calendar-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.month-badge strong,
.weekly-note-badge {
  color: var(--indigo);
}

.calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-bottom: 16px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--muted);
}

.legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 4px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  display: inline-block;
}

.legend-swatch.level-0 {
  background: rgba(255, 255, 255, 0.8);
}

.legend-swatch.level-1 {
  background: rgba(122, 139, 101, 0.18);
}

.legend-swatch.level-2 {
  background: rgba(79, 118, 110, 0.24);
}

.legend-swatch.level-3 {
  background: rgba(178, 77, 60, 0.24);
}

.study-calendar {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}

.calendar-weekday {
  padding: 8px 0;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--scarlet);
}

.calendar-cell {
  min-height: 100px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  appearance: none;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 248, 241, 0.82));
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.calendar-cell:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 24px rgba(96, 77, 55, 0.08);
}

.calendar-cell.intensity-1 {
  background: linear-gradient(180deg, rgba(244, 249, 241, 0.98), rgba(242, 247, 238, 0.9));
}

.calendar-cell.intensity-2 {
  background: linear-gradient(180deg, rgba(236, 245, 242, 0.98), rgba(226, 238, 236, 0.92));
}

.calendar-cell.intensity-3 {
  background: linear-gradient(180deg, rgba(252, 241, 236, 0.98), rgba(247, 229, 222, 0.92));
}

.calendar-cell.is-outside {
  opacity: 0.42;
}

.calendar-cell.is-today {
  border-color: rgba(178, 77, 60, 0.35);
  box-shadow: 0 0 0 2px rgba(178, 77, 60, 0.12);
}

.calendar-cell.has-review {
  border-color: rgba(79, 118, 110, 0.28);
}

.calendar-cell.is-selected {
  border-color: rgba(31, 56, 87, 0.3);
  box-shadow: 0 0 0 2px rgba(31, 56, 87, 0.12);
}

.day-number-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.day-number {
  font-size: 0.92rem;
  font-weight: 900;
}

.day-review-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 900;
  color: #fff8f2;
  background: linear-gradient(135deg, var(--teal), #456a65);
}

.day-review-chip.is-done {
  color: var(--indigo);
  background: rgba(212, 228, 228, 0.72);
}

.day-minutes {
  font-size: 1.14rem;
  color: var(--indigo);
}

.day-note {
  min-height: 1.3em;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--muted);
}

.calendar-day-detail {
  margin-top: 18px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: linear-gradient(180deg, rgba(255, 250, 245, 0.92), rgba(247, 241, 232, 0.8));
}

.calendar-day-detail-head,
.calendar-detail-section-head,
.calendar-day-summary,
.calendar-detail-item-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.calendar-day-summary {
  flex-wrap: wrap;
  margin: 14px 0 16px;
}

.detail-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: rgba(255, 255, 255, 0.78);
  font-size: 0.84rem;
  font-weight: 800;
  color: var(--indigo);
}

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

.calendar-detail-section {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: rgba(255, 255, 255, 0.62);
}

.calendar-detail-section-head {
  margin-bottom: 12px;
}

.calendar-detail-section-head span,
.calendar-detail-meta {
  font-size: 0.84rem;
  color: var(--muted);
}

.calendar-detail-list,
.calendar-session-summary {
  display: grid;
  gap: 12px;
}

.calendar-detail-item,
.calendar-session-card {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(254, 249, 243, 0.72));
}

.calendar-detail-item p,
.calendar-session-card p {
  margin: 8px 0 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.week-card {
  position: relative;
  overflow: hidden;
}

.week-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 5px;
  height: 100%;
  background: rgba(79, 118, 110, 0.22);
}

.week-card.status-strong::before {
  background: linear-gradient(180deg, var(--scarlet), var(--gold));
}

.week-card.status-steady::before {
  background: linear-gradient(180deg, var(--teal), rgba(79, 118, 110, 0.42));
}

.week-card.status-light::before {
  background: linear-gradient(180deg, rgba(122, 139, 101, 0.72), rgba(122, 139, 101, 0.28));
}

.week-card-head {
  margin-bottom: 12px;
}

.week-card-meta {
  margin-bottom: 10px;
  font-size: 0.88rem;
}

.week-card-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.week-card-metric {
  padding: 10px;
  border-radius: 14px;
  border: 1px solid rgba(40, 46, 56, 0.06);
  background: rgba(255, 255, 255, 0.68);
}

.week-card-metric span {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

.week-card-metric strong {
  display: block;
  margin-top: 4px;
  font-size: 1.02rem;
  color: var(--indigo);
}

.week-card p {
  margin: 6px 0 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.library-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.library-grid,
.records-grid,
.admin-preview-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.library-item-title {
  margin: 10px 0 6px;
  font-size: 1.04rem;
  color: var(--ink);
}

.records-grid,
.admin-preview-grid {
  margin-top: 16px;
}

.backend-docs-panel {
  margin-top: 16px;
}

.doc-link-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.doc-link-card {
  display: grid;
  gap: 8px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(248, 241, 233, 0.78));
  color: var(--ink);
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.doc-link-card:hover,
.doc-link-card:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(178, 77, 60, 0.2);
  box-shadow: 0 16px 28px rgba(65, 52, 41, 0.08);
}

.doc-link-card strong {
  font-size: 1rem;
}

.doc-link-card span {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.feature-list {
  margin: 0;
  padding-left: 18px;
}

.feature-list li + li {
  margin-top: 8px;
}

.queue-item,
.session-item,
.library-item {
  display: grid;
  gap: 8px;
}

.queue-item-head,
.session-item-head {
  align-items: center;
}

.session-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.empty-state {
  min-height: 220px;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--muted);
  border: 1px dashed rgba(40, 46, 56, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.44);
}

.record-form {
  display: grid;
  gap: 14px;
}

.form-suggestion {
  margin: -2px 0 2px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(212, 228, 228, 0.42);
  color: var(--indigo);
  font-size: 0.88rem;
  line-height: 1.6;
}

.form-suggestion-quiet {
  margin-top: -8px;
  background: rgba(255, 248, 240, 0.68);
  color: var(--muted);
}

.record-form label,
.checkbox-group legend {
  display: grid;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
}

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

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

input,
textarea,
select {
  width: 100%;
  padding: 13px 14px;
  border-radius: 16px;
  border: 1px solid rgba(40, 46, 56, 0.12);
  background: rgba(255, 255, 255, 0.9);
  font: inherit;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(79, 118, 110, 0.18);
  border-color: rgba(79, 118, 110, 0.42);
}

.checkbox-group {
  margin: 0;
  padding: 14px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  border: 1px solid rgba(40, 46, 56, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.checkbox-group input {
  width: auto;
}

.admin-body {
  background:
    radial-gradient(circle at top left, rgba(79, 118, 110, 0.14), transparent 28%),
    radial-gradient(circle at bottom right, rgba(210, 168, 85, 0.16), transparent 24%),
    linear-gradient(180deg, #efe5d8 0%, #f6f0e8 100%);
}

.admin-shell {
  width: min(100% - 28px, 1380px);
  margin: 24px auto;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 18px;
}

.admin-sidebar,
.admin-main {
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  background:
    linear-gradient(180deg, rgba(255, 254, 250, 0.97), rgba(249, 243, 235, 0.9)),
    var(--paper);
}

.admin-sidebar {
  padding: 22px 18px;
  display: grid;
  gap: 16px;
  align-content: start;
}

.admin-brand {
  display: grid;
  gap: 8px;
}

.admin-brand strong {
  font-family: "Noto Serif TC", "Noto Sans TC", serif;
  font-size: 1.3rem;
}

.admin-brand p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.admin-nav {
  display: grid;
  gap: 8px;
}

.admin-nav-link {
  display: block;
  padding: 12px 14px;
  border-radius: 16px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: rgba(255, 255, 255, 0.62);
}

.admin-nav-link.is-active {
  color: #fff8f2;
  border-color: transparent;
  background: linear-gradient(135deg, var(--scarlet), var(--scarlet-strong));
}

.admin-sidebar-card {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: rgba(255, 255, 255, 0.72);
}

.admin-sidebar-card span {
  display: block;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--scarlet);
}

.admin-sidebar-card strong {
  display: block;
  margin: 8px 0 6px;
  font-size: 1.05rem;
  color: var(--ink);
}

.admin-sidebar-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.admin-sidebar-card.accent {
  background: linear-gradient(135deg, rgba(212, 228, 228, 0.74), rgba(255, 243, 223, 0.9));
}

.admin-main {
  padding: 24px;
  display: grid;
  gap: 18px;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.admin-title {
  margin: 8px 0 10px;
  max-width: none;
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.06;
}

.admin-subtitle {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  line-height: 1.7;
}

.admin-header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.admin-metrics-grid,
.admin-workspace-grid,
.admin-lower-grid {
  display: grid;
  gap: 16px;
}

.admin-metrics-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.admin-workspace-grid {
  grid-template-columns: 0.92fr 1.08fr;
}

.admin-lower-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-filter-row,
.admin-editor-tabs,
.admin-search-row,
.admin-content-list,
.admin-asset-list,
.admin-history-list,
.admin-publish-checklist,
.admin-form {
  display: grid;
  gap: 12px;
}

.admin-search-row {
  grid-template-columns: 1fr 170px;
}

.admin-content-list {
  margin-top: 14px;
}

.admin-content-item {
  width: 100%;
  padding: 16px;
  text-align: left;
  border-radius: 18px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: rgba(255, 255, 255, 0.72);
  cursor: pointer;
}

.admin-content-item.is-active {
  border-color: rgba(178, 77, 60, 0.18);
  box-shadow: 0 12px 24px rgba(65, 52, 41, 0.08);
}

.admin-content-item strong,
.admin-asset-item strong,
.admin-history-item strong {
  display: block;
  margin: 8px 0 6px;
  color: var(--ink);
}

.admin-content-item p,
.admin-asset-item span,
.admin-history-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.admin-upload-dropzone {
  display: grid;
  place-items: center;
  gap: 8px;
  min-height: 180px;
  border-radius: 20px;
  border: 1px dashed rgba(178, 77, 60, 0.24);
  background: linear-gradient(180deg, rgba(255, 249, 242, 0.92), rgba(250, 240, 228, 0.78));
  text-align: center;
}

.admin-upload-dropzone strong {
  color: var(--indigo);
}

.admin-upload-dropzone p {
  margin: 0;
  max-width: 38ch;
  color: var(--muted);
  line-height: 1.7;
}

.admin-asset-item,
.admin-history-item {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: rgba(255, 255, 255, 0.66);
}

.admin-publish-checklist label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(40, 46, 56, 0.08);
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink);
}

.admin-docs-panel .doc-link-list {
  margin-top: 12px;
}

@media (max-width: 1100px) {
  .landing-practice-grid,
  .session-grid,
  .dashboard-grid,
  .planner-grid,
  .calendar-day-columns,
  .practice-columns,
  .theme-overview-grid,
  .library-grid,
  .records-grid,
  .admin-preview-grid,
  .doc-link-list,
  .landing-stat-grid,
  .quest-grid,
  .practice-mode-grid,
  .admin-metrics-grid,
  .admin-workspace-grid,
  .admin-lower-grid,
  .library-summary-grid,
  .metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gauge-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .admin-shell {
    width: min(100% - 16px, 1380px);
    margin: 16px auto;
    grid-template-columns: 1fr;
  }

  .page-shell {
    width: min(100% - 20px, var(--max-width));
    padding-top: 12px;
  }

  .hero,
  .section {
    padding: 18px;
  }

  .topbar,
  .topbar-actions,
  .hero-actions,
  .landing-practice-grid,
  .landing-stat-grid,
  .session-grid,
  .practice-columns,
  .quest-grid,
  .practice-mode-grid,
  .theme-overview-grid,
  .metrics-grid,
  .dashboard-grid,
  .planner-grid,
  .library-grid,
  .records-grid,
  .admin-preview-grid,
  .doc-link-list,
  .admin-metrics-grid,
  .admin-workspace-grid,
  .admin-lower-grid,
  .library-summary-grid,
  .inline-grid,
  .inline-grid.two-col,
  .checkbox-group,
  .week-card-metrics {
    grid-template-columns: 1fr;
  }

  .topbar,
  .topbar-actions,
  .admin-header,
  .admin-header-actions,
  .calendar-tools,
  .calendar-nav,
  .planner-head,
  .calendar-day-detail-head,
  .calendar-detail-section-head,
  .week-card-head,
  .week-card-meta,
  .audio-status-bar {
    display: grid;
  }

  .audio-status-line {
    min-width: 0;
  }

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

  .gauge-ring {
    width: 190px;
    height: 190px;
  }

  .study-calendar {
    gap: 8px;
  }

  .calendar-cell {
    min-height: 96px;
  }
}