/* DialogueSidon demo page — formal academic styling */
:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #555555;
  --rule: #222222;
  --rule-faint: #cccccc;
  --accent: #1f3a78;          /* dark navy — speaker 1 */
  --accent-2: #8b1a3a;        /* dark maroon — speaker 2 */
  --shade: #f5f5f5;
  --serif: "Charter", "Iowan Old Style", "Source Serif Pro", "Cambria", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--serif);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: min(880px, 92%);
  margin: 0 auto;
}

/* ---------- Hero / title block ---------- */
.hero {
  padding: 64px 0 36px;
  text-align: center;
  border-bottom: 1px solid var(--rule-faint);
}
.hero .venue {
  font-family: var(--sans);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 auto 24px;
  max-width: 760px;
  letter-spacing: -0.005em;
  color: var(--text);
}
.hero .authors {
  font-family: var(--serif);
  font-size: 17px;
  margin: 0 0 4px;
  color: var(--text);
}
.hero .affiliation {
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--muted);
  margin: 0 0 24px;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 18px;
  background: #ffffff;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--rule);
  border-radius: 2px;
  letter-spacing: 0.02em;
  transition: background 0.12s, color 0.12s;
}
.btn:hover {
  background: var(--text);
  color: #ffffff;
}

/* ---------- Sections ---------- */
main { padding: 48px 0 32px; }
section { margin: 0 0 48px; scroll-margin-top: 24px; }
section h2 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-faint);
  letter-spacing: 0;
}
section h3 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  font-style: italic;
  margin: 32px 0 10px;
  color: var(--text);
}
section p { color: var(--text); margin: 0 0 12px; }
#abstract p {
  font-size: 16px;
  text-align: justify;
  hyphens: auto;
}
.note {
  font-size: 14px;
  color: var(--muted);
  font-style: italic;
}

/* ---------- Sample tables ---------- */
.sample-table-wrapper {
  overflow-x: auto;
  margin: 8px 0 4px;
}
.sample-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 14px;
}
/* Booktabs-style: top + bottom rules, no vertical lines, no row striping */
.sample-table thead th {
  text-align: left;
  font-weight: 600;
  padding: 10px 12px;
  border-top: 1.5px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
  background: transparent;
  color: var(--text);
}
.sample-table tbody td {
  padding: 12px 12px;
  border-bottom: 1px solid var(--rule-faint);
  vertical-align: middle;
  background: transparent;
}
.sample-table tbody tr:last-child td {
  border-bottom: 1.5px solid var(--rule);
}
.sample-table td:first-child {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  white-space: nowrap;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

/* ---------- Waveform players (wavesurfer.js) ---------- */
.player {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-width: 220px;
}
.play-btn {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--rule);
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
  font-size: 11px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-family: var(--sans);
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}
.play-btn:hover {
  background: var(--text);
  color: #ffffff;
}
.play-btn.playing {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}
.play-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.waveform {
  flex: 1 1 auto;
  position: relative;
  min-width: 160px;
  background: transparent;
}
/* Reserve consistent row heights so wavesurfer rendering doesn't shift the
   layout. Noisy column = mono (single channel); the model output columns =
   stereo (two stacked channels). */
.sample-table td:nth-child(2) .waveform { min-height: 40px; }
.sample-table td:nth-child(3) .waveform,
.sample-table td:nth-child(4) .waveform { min-height: 80px; }

/* Per-channel labels */
.ch-label {
  position: absolute;
  left: 4px;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.06em;
  background: rgba(255, 255, 255, 0.92);
  padding: 1px 4px;
  border-radius: 2px;
  pointer-events: none;
}
.ch-label-1 { top: 1px; color: var(--accent); }
.ch-label-2 { bottom: 1px; color: var(--accent-2); }
.ch-label-mono { top: 50%; transform: translateY(-50%); color: var(--muted); }

.waveform.stereo::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: var(--rule-faint);
  pointer-events: none;
}

/* ---------- Citation ---------- */
.bibtex {
  background: var(--shade);
  color: var(--text);
  padding: 14px 16px;
  border: 1px solid var(--rule-faint);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 13px;
  overflow-x: auto;
  line-height: 1.55;
  margin: 0;
}
.bibtex code { background: transparent; padding: 0; font-family: inherit; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--rule-faint);
  padding: 22px 0 36px;
  text-align: center;
}
footer p {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

@media (max-width: 720px) {
  .hero { padding: 44px 0 28px; }
  body { font-size: 16px; }
}