/* ══════════════════════════════════════════════════════════════════
   Chinese Annotation — Song Dynasty aesthetic
   Base styles from the design handoff, extended with preserved
   column-grouping + file-list components.
   ══════════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
a, button, label, input { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }

:root {
  --bg: rgba(245,240,232,0.85);
  --surface: rgba(250,247,242,0.85);
  --surface2: rgba(240,234,217,0.55);
  --surface3: rgba(232,224,206,0.85);
  --border: rgba(90,60,30,0.18);
  --border2: rgba(90,60,30,0.09);
  --glow: rgba(160,100,30,0.08);
  --accent: #c0392b;
  --accent-dim: rgba(192,57,43,0.45);
  --accent-bg: rgba(192,57,43,0.07);
  --ink: #c0392b;
  --text: #1a1410;
  --text2: #5a4e3c;
  --text3: #9c8e78;
  --gold: #9c7a20;
  --body-bg: #ddd5c0;
  --noise-opacity: 0.025;
  --btn-text-on-accent: #fbf8f1;
  --select-arrow: "%239c8e78";
  --err-bg: rgba(146,37,37,0.08);
  --err-border: rgba(146,37,37,0.28);
  --err-text: #a73d2d;
  --overlay-bg: rgba(30,22,14,0.42);
  --video-bg: #1a1410;
}

html[data-theme="dark"] {
  --bg: rgba(28,22,18,0.90);
  --surface: rgba(36,28,22,0.88);
  --surface2: rgba(46,36,28,0.70);
  --surface3: rgba(58,44,34,0.85);
  --border: rgba(200,170,130,0.18);
  --border2: rgba(200,170,130,0.09);
  --glow: rgba(220,160,80,0.10);
  --accent: #e85a4b;
  --accent-dim: rgba(232,90,75,0.50);
  --accent-bg: rgba(232,90,75,0.10);
  --ink: #e85a4b;
  --text: #f0e6d2;
  --text2: #b9aa8c;
  --text3: #7a6a54;
  --gold: #d4a947;
  --body-bg: #15100c;
  --noise-opacity: 0.04;
  --btn-text-on-accent: #15100c;
  --select-arrow: "%237a6a54";
  --err-bg: rgba(232,90,75,0.12);
  --err-border: rgba(232,90,75,0.35);
  --err-text: #f08b7c;
  --overlay-bg: rgba(0,0,0,0.62);
  --video-bg: #0a0806;
}

html, body { height: 100%; }
body {
  font-family: 'Source Serif 4', Georgia, serif;
  background-color: var(--body-bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
  transition: background-color .3s ease, color .3s ease;
  background-repeat: repeat;
  background-size: 300px 300px;
  min-height: 100vh;
  display: flex;
  align-items: safe center;
  justify-content: center;
  padding: 24px;
  color: var(--text);
}

/* ── Shared container ──────────────────────────────────────────── */
.container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 52px 44px 44px;
  width: 100%;
  max-width: 560px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 20px rgba(60,40,20,0.18), 0 1px 4px rgba(60,40,20,0.10);
  text-align: center;
}
.container.wide { max-width: 720px; }

.container::before, .container::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  opacity: 0.45;
}
.container::before { top: 0; left: 0; border-top: 1.5px solid var(--accent); border-left: 1.5px solid var(--accent); }
.container::after  { bottom: 0; right: 0; border-bottom: 1.5px solid var(--accent); border-right: 1.5px solid var(--accent); }

.container > .zen-mark {
  position: absolute !important;
  top: 50% !important;
  left: 50% !important;
  transform: translate(-50%, -50%) !important;
  width: 320px;
  height: 320px;
  opacity: .09;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  display: block;
}
.container > *:not(.zen-mark) { position: relative; z-index: 1; }

/* ── Typography ──────────────────────────────────────────────── */
.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 14px;
}
.han-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .08em;
  line-height: 1;
  margin-bottom: 14px;
}
h1.eng-title {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .02em;
  margin-bottom: 8px;
}
.title-rule {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  width: 140px;
  margin: 14px auto 18px;
}
.title-rule__line { flex: 1; height: 1px; background: var(--accent-dim); }
.title-rule__mark { color: var(--accent); font-size: .5rem; opacity: .7; line-height: 1; }
.subtitle {
  color: var(--text2);
  font-size: .9rem;
  font-weight: 300;
  letter-spacing: .025em;
  line-height: 1.6;
  margin-bottom: 6px;
}
.subtitle-small {
  color: var(--text3);
  font-size: .76rem;
  letter-spacing: .04em;
  margin-bottom: 28px;
  font-family: 'JetBrains Mono', monospace;
}

/* ── PIN entry ────────────────────────────────────────────────── */
.code-section { margin: 10px 0 18px; }
.code-label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text2);
  margin-bottom: 14px;
}
.code-boxes {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 6px;
}
.code-box {
  width: 46px;
  height: 56px;
  border: 1px solid var(--border);
  border-bottom: 1.5px solid var(--accent-dim);
  background: var(--surface2);
  text-align: center;
  font-family: 'Noto Serif SC', 'JetBrains Mono', monospace;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
  outline: none;
  border-radius: 2px;
  transition: border-color .15s, background .15s, box-shadow .15s;
  caret-color: var(--accent);
}
.code-box:focus {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--accent-bg);
}
.code-box.filled {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.code-hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: .68rem;
  color: var(--text3);
  letter-spacing: .06em;
  margin-top: 10px;
}

/* ── reCAPTCHA widget ────────────────────────────────────────── */
.recaptcha-wrapper {
  display: flex;
  justify-content: center;
  margin: 20px 0 24px;
}

/* ── Primary button ────────────────────────────────────────── */
.btn {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 2px;
  padding: 13px 32px;
  font-size: .82rem;
  cursor: pointer;
  transition: background .2s, color .2s, box-shadow .2s;
  width: 100%;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
}
.btn:hover:not(:disabled):not(.is-disabled) {
  background: var(--accent);
  color: var(--btn-text-on-accent);
  box-shadow: 0 2px 14px rgba(192,57,43,0.22);
}
.btn:disabled, .btn.is-disabled {
  border-color: var(--text3);
  color: var(--text3);
  cursor: not-allowed;
  opacity: .7;
}
.btn-arrow { font-size: 1rem; line-height: 0; transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--text2);
  border: 1px solid var(--border);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: .08em;
  font-size: .72rem;
  padding: 8px 14px;
  border-radius: 2px;
  cursor: pointer;
  text-transform: uppercase;
  transition: border-color .15s, color .15s;
}
.btn-ghost:hover { border-color: var(--accent-dim); color: var(--accent); }

.restart-ghost {
  display: block;
  margin: 14px auto 0;
  width: 100%;
}

/* ── Seal row ────────────────────────────────────────────── */
.seal-row {
  margin-top: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem;
  letter-spacing: .2em;
  color: var(--text3);
  text-transform: uppercase;
}
.seal-dot { width: 4px; height: 4px; background: var(--accent); border-radius: 50%; opacity: .6; }

/* ── HUB page ─────────────────────────────────────────── */
.hub-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  text-align: left;
  gap: 16px;
}
.hub-header .title-group { flex: 1; }
.hub-han {
  font-family: 'Noto Serif SC', serif;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1;
  margin-bottom: 6px;
}
.hub-eng {
  font-family: 'Lora', Georgia, serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.hub-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: .65rem;
  letter-spacing: .16em;
  color: var(--text3);
  text-transform: uppercase;
  margin-top: 6px;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 24px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 26px 24px;
  cursor: pointer;
  text-align: left;
  position: relative;
  overflow: hidden;
  transition: border-color .18s, box-shadow .18s, transform .18s;
  display: grid;
  grid-template-columns: 64px 1fr auto;
  align-items: center;
  gap: 18px;
  font-family: inherit;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 14px;
  height: 14px;
  border-top: 1.5px solid var(--accent);
  border-left: 1.5px solid var(--accent);
  opacity: .45;
}
.feature-card:hover {
  border-color: var(--accent-dim);
  box-shadow: 0 4px 16px rgba(192,57,43,0.10);
  transform: translateY(-1px);
}
.feature-icon {
  width: 64px;
  height: 64px;
  border: 1px dashed var(--accent-dim);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface2);
  font-family: 'Noto Serif SC', serif;
  font-size: 1.75rem;
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}
.feature-icon.video {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.4rem;
}
.feature-body { min-width: 0; }
.feature-title {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: .01em;
  color: var(--text);
}
.feature-title .han {
  font-family: 'Noto Serif SC', serif;
  color: var(--accent);
  margin-right: 8px;
  font-weight: 700;
}
.feature-desc {
  font-size: .82rem;
  color: var(--text2);
  line-height: 1.55;
}
.feature-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: .6rem;
  letter-spacing: .14em;
  color: var(--text3);
  text-transform: uppercase;
  margin-top: 8px;
}
.feature-arrow {
  color: var(--accent);
  font-size: 1.4rem;
  opacity: .5;
  transition: transform .2s, opacity .2s;
}
.feature-card:hover .feature-arrow { transform: translateX(3px); opacity: 1; }

/* ── Upload / Video page ─────────────────────────────── */
.page-crumb {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem;
  letter-spacing: .14em;
  color: var(--text3);
  text-transform: uppercase;
}
.back-link {
  color: var(--text2);
  cursor: pointer;
  background: none;
  font-family: inherit;
  font-size: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 2px;
  transition: border-color .15s, color .15s;
}
.back-link:hover { border-color: var(--accent-dim); color: var(--accent); }

.page-title {
  text-align: left;
  margin-bottom: 22px;
}
.page-title h2 {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.3rem;
  margin-bottom: 4px;
  letter-spacing: .02em;
}
.page-title .han {
  font-family: 'Noto Serif SC', serif;
  color: var(--accent);
  margin-right: 8px;
}
.page-title p {
  color: var(--text2);
  font-size: .85rem;
  line-height: 1.55;
}

/* ── Drop zone ────────────────────────────── */
.drop-zone {
  display: block;
  border: 1px dashed var(--accent-dim);
  border-radius: 2px;
  padding: 40px 24px;
  cursor: pointer;
  transition: background .2s, border-color .2s, box-shadow .2s;
  margin-bottom: 18px;
  background: var(--surface2);
  text-align: center;
}
.drop-zone.drag-over, .drop-zone:hover {
  background: var(--surface3);
  border-color: var(--accent);
  box-shadow: inset 0 0 30px rgba(192,57,43,.05);
}
.drop-icon {
  margin-bottom: 14px;
  color: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
}
.drop-zone p { color: var(--text); font-size: .9rem; margin: 4px 0; }
.drop-zone .file-hint {
  color: var(--text2);
  font-size: .76rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: .04em;
}
.browse-link {
  color: var(--accent);
  cursor: pointer;
  border-bottom: 1px solid var(--accent-dim);
}
.browse-link:hover { border-color: var(--accent); }

/* ── File list (multi-file) ─────────────────────── */
.file-list-container {
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--surface2);
  padding: 12px 14px;
  margin-bottom: 18px;
  text-align: left;
}
.file-list-hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 10px;
}
.file-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.file-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 2px;
  font-size: .82rem;
  color: var(--text);
  cursor: grab;
  transition: border-color .15s, box-shadow .15s;
}
.file-item:hover { border-color: var(--accent-dim); }
.file-item.dragging { opacity: .55; cursor: grabbing; }
.file-item.drag-over-item { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-bg); }
.drag-handle {
  color: var(--text3);
  font-size: 1rem;
  line-height: 1;
  cursor: grab;
  user-select: none;
}
.file-item-index {
  font-family: 'JetBrains Mono', monospace;
  font-size: .7rem;
  color: var(--accent);
  min-width: 18px;
  text-align: right;
}
.file-item-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-item-size {
  font-family: 'JetBrains Mono', monospace;
  font-size: .68rem;
  color: var(--text3);
}
.remove-file-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text3);
  width: 22px;
  height: 22px;
  border-radius: 2px;
  cursor: pointer;
  font-size: .72rem;
  line-height: 1;
  transition: border-color .15s, color .15s;
}
.remove-file-btn:hover { border-color: var(--accent-dim); color: var(--accent); }
.add-more-btn {
  margin-top: 10px;
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--text2);
  font-family: 'JetBrains Mono', monospace;
  font-size: .7rem;
  letter-spacing: .08em;
  padding: 6px 12px;
  border-radius: 2px;
  cursor: pointer;
  text-transform: uppercase;
  transition: border-color .15s, color .15s;
}
.add-more-btn:hover { border-color: var(--accent-dim); color: var(--accent); }

/* ── Options panel ─────────────────── */
.options-panel {
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 16px 18px;
  margin-bottom: 18px;
  background: var(--surface2);
  text-align: left;
}
.options-heading {
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text2);
  margin-bottom: 14px;
}
.option-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--border2);
}
.option-row:first-of-type { border-top: none; padding-top: 2px; }
.option-row .opt-label {
  font-size: .85rem;
  color: var(--text);
  min-width: 140px;
}
.option-row .opt-label .han {
  font-family: 'Noto Serif SC', serif;
  color: var(--accent);
  margin-right: 6px;
  font-size: .95rem;
}
.option-select {
  flex: 1 1 0;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 7px 28px 7px 10px;
  font-size: .82rem;
  font-family: 'Source Serif 4', Georgia, serif;
  cursor: pointer;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%239c8e78' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}
.option-select:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-bg); }
html[data-theme="dark"] .option-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23b9aa8c' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
}

/* ── Toggle ─────────────── */
.toggle { position: relative; display: inline-flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; }
.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-track {
  width: 32px;
  height: 18px;
  background: var(--surface3);
  border: 1px solid var(--border);
  border-radius: 9px;
  position: relative;
  transition: all .2s;
  flex-shrink: 0;
}
.toggle-track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  background: var(--text3);
  border-radius: 50%;
  transition: transform .2s, background .2s;
}
.toggle input:checked + .toggle-track { background: var(--accent-bg); border-color: var(--accent-dim); }
.toggle input:checked + .toggle-track::after { transform: translateX(14px); background: var(--accent); }

/* ── Column / passage grouping (preserved step2) ─── */
.column-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
  max-height: 360px;
  overflow-y: auto;
  padding-right: 4px;
  text-align: left;
}
.col-card {
  display: grid;
  grid-template-columns: 42px 48px 1fr;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, background .15s;
  font-family: 'Noto Serif SC', serif;
  font-size: .92rem;
  color: var(--text);
  text-align: left;
}
.col-card:hover { border-color: var(--accent-dim); }
.col-card--selected {
  border-color: var(--accent);
  background: var(--accent-bg);
  box-shadow: 0 0 0 2px var(--accent-bg);
}
.col-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: .7rem;
  color: var(--accent);
  letter-spacing: .04em;
}
.col-page {
  font-family: 'JetBrains Mono', monospace;
  font-size: .66rem;
  color: var(--text3);
  letter-spacing: .04em;
}
.col-preview {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.all-grouped {
  font-family: 'JetBrains Mono', monospace;
  font-size: .7rem;
  color: var(--text3);
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 14px;
  text-align: center;
}

.passage-bulk-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.bulk-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text2);
  font-family: 'JetBrains Mono', monospace;
  font-size: .68rem;
  letter-spacing: .08em;
  padding: 7px 12px;
  border-radius: 2px;
  cursor: pointer;
  text-transform: uppercase;
  transition: border-color .15s, color .15s, background .15s;
}
.bulk-btn:hover:not(:disabled) { border-color: var(--accent-dim); color: var(--accent); }
.bulk-btn:disabled { opacity: .5; cursor: not-allowed; }
.bulk-btn--accent {
  border-color: var(--accent-dim);
  color: var(--accent);
}
.bulk-btn--accent:hover:not(:disabled) {
  background: var(--accent);
  color: var(--btn-text-on-accent);
  border-color: var(--accent);
}

.passage-name-row {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}
.passage-name-input {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 8px 12px;
  font-size: .85rem;
  color: var(--text);
  font-family: 'Source Serif 4', Georgia, serif;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.passage-name-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-bg); }

.passages-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
  text-align: left;
}
.passage-block {
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--surface2);
  padding: 10px 12px;
}
.passage-block-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}
.passage-block-header strong {
  font-family: 'Lora', Georgia, serif;
  color: var(--text);
  font-size: .92rem;
}
.passage-col-label {
  flex: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: .66rem;
  letter-spacing: .04em;
  color: var(--text3);
}
.remove-passage-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text3);
  width: 22px;
  height: 22px;
  border-radius: 2px;
  cursor: pointer;
  font-size: .72rem;
  transition: border-color .15s, color .15s;
}
.remove-passage-btn:hover { border-color: var(--accent-dim); color: var(--accent); }
.passage-preview {
  font-family: 'Noto Serif SC', serif;
  font-size: .85rem;
  color: var(--text2);
  line-height: 1.45;
}

/* ── Video player on result page ─────────────── */
.video-player {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--video-bg);
  margin-bottom: 18px;
  display: block;
}

/* ── Error message (inline) ─────────────── */
.form-error {
  background: var(--err-bg);
  border: 1px solid var(--err-border);
  border-radius: 2px;
  padding: 10px 14px;
  color: var(--err-text);
  font-size: .78rem;
  letter-spacing: .02em;
  line-height: 1.5;
  margin-bottom: 16px;
  text-align: left;
  font-family: 'JetBrains Mono', monospace;
}

/* ── Status overlay ─────────────── */
.status-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.status-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 24px 28px;
  width: min(420px, calc(100vw - 48px));
  position: relative;
  box-shadow: 0 4px 32px rgba(30,20,10,0.3);
}
.status-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 14px;
  height: 14px;
  border-top: 1.5px solid var(--accent);
  border-left: 1.5px solid var(--accent);
  opacity: .45;
}
.status-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.status-row #status-text {
  flex: 1;
  font-size: .88rem;
  color: var(--text);
}
.status-pct {
  font-family: 'JetBrains Mono', monospace;
  font-size: .72rem;
  color: var(--accent);
  letter-spacing: .06em;
}
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--surface3);
  border-radius: 2px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width .25s ease;
}

/* ── Error toast ─────────────── */
.error-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: rgba(146,37,37,0.95);
  color: #fff;
  padding: 12px 20px;
  border-radius: 2px;
  font-size: .82rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: .02em;
  box-shadow: 0 4px 16px rgba(60,20,10,0.4);
  z-index: 200;
  max-width: calc(100vw - 48px);
}

/* ── Utility ─────────────── */
.hidden { display: none !important; }

/* ── Page switcher ─────────────── */
.page { display: none; animation: pageIn .35s ease-out; }
.page.active { display: block; }
@keyframes pageIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

/* ── Theme toggle (fixed top-right) ─────────────── */
.theme-toggle {
  position: fixed;
  top: 18px;
  right: 18px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--accent);
  font-family: 'Noto Serif SC', serif;
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  transition: border-color .15s, transform .2s, box-shadow .15s, background .2s;
  box-shadow: 0 2px 10px rgba(60,40,20,0.10);
  user-select: none;
}
.theme-toggle:hover {
  border-color: var(--accent-dim);
  transform: rotate(-15deg);
  box-shadow: 0 3px 14px rgba(192,57,43,0.18);
}
.theme-toggle:focus-visible { outline: 2px solid var(--accent-dim); outline-offset: 2px; }
.theme-toggle .glyph-sun  { display: none; }
.theme-toggle .glyph-moon { display: inline; }
html[data-theme="dark"] .theme-toggle .glyph-sun  { display: inline; }
html[data-theme="dark"] .theme-toggle .glyph-moon { display: none; }

/* ── Translation review page ─────────────── */
.review-passages-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 120px;
}

.passage-card {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 2px;
  background: var(--surface2);
  overflow: hidden;
}

.passage-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 18px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border2);
}

.passage-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.passage-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem;
  letter-spacing: .06em;
  color: var(--text3);
  text-transform: uppercase;
}

.passage-divider {
  height: 1px;
  background: var(--border);
}

.passage-card-body {
  display: flex;
  flex-direction: column;
  padding: 20px 18px 18px;
  gap: 14px;
}

.passage-text {
  font-family: 'Noto Serif SC', serif;
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text);
  word-break: break-word;
  letter-spacing: .02em;
}

.passage-pinyin {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: .85rem;
  color: var(--text2);
  letter-spacing: .04em;
  line-height: 1.6;
  font-style: italic;
  margin-bottom: 4px;
}

.passage-trans-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text2);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.passage-trans-label .han {
  font-family: 'Noto Serif SC', serif;
  color: var(--accent);
  font-size: .85rem;
  font-weight: 700;
  font-style: normal;
}

.translation-edit {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: .9rem;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: var(--surface);
  color: var(--text);
  min-height: 180px;
  resize: vertical;
  transition: border-color .15s, box-shadow .15s;
  outline: none;
  line-height: 1.6;
}

.translation-edit:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-bg);
}

.review-footer {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 600px;
  padding: 16px 20px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  z-index: 100;
}

.review-footer .btn,
.review-footer .btn-ghost {
  flex: 1;
}

/* ── Mobile ─────────────── */
@media (max-width: 560px) {
  body { padding: 0; align-items: flex-start; }
  .container {
    padding: 36px 20px 40px;
    border-radius: 0;
    border-left: none;
    border-right: none;
    min-height: 100dvh;
  }
  .han-title { font-size: 2.1rem; }
  .code-box { width: 38px; height: 48px; font-size: 1.1rem; }
  .feature-card { grid-template-columns: 52px 1fr; gap: 14px; padding: 20px; }
  .feature-arrow { grid-column: 2; justify-self: end; margin-top: 4px; }
  .passage-bulk-actions { flex-wrap: wrap; }
  .theme-toggle { top: 10px; right: 10px; width: 36px; height: 36px; font-size: 1rem; }
}