:root {
  color-scheme: dark;
  --bg: #05070c;
  --panel: rgba(14, 20, 34, 0.86);
  --panel-strong: rgba(20, 30, 52, 0.94);
  --line: rgba(145, 190, 255, 0.18);
  --line-strong: rgba(128, 222, 255, 0.42);
  --text: #f6f8ff;
  --muted: #9ca9bd;
  --dim: #65718a;
  --cyan: #73e4ff;
  --violet: #9e86ff;
  --gold: #ffcf73;
  --green: #9effc7;
  --red: #ff8a9a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; overflow-x: hidden; }
body {
  background:
    radial-gradient(circle at 10% 6%, rgba(82, 151, 255, 0.24), transparent 26rem),
    radial-gradient(circle at 80% 0%, rgba(255, 207, 115, 0.14), transparent 30rem),
    radial-gradient(circle at 50% 100%, rgba(115, 228, 255, 0.08), transparent 34rem),
    linear-gradient(145deg, #05070c 0%, #0b1020 54%, #111729 100%);
  color: var(--text);
}
button, input, select { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }

.interview-shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 92px;
}

.hero-card,
.lineage-rail,
.lineage-lab,
.evidence-card,
.meter-board,
.takeaway-card,
.audio-card,
.transcript-tools,
.transcript-group {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero-card {
  min-height: 380px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
  gap: 28px;
  align-items: stretch;
  padding: clamp(24px, 5vw, 56px);
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background:
    linear-gradient(120deg, rgba(115, 228, 255, 0.14), transparent 42%, rgba(255, 207, 115, 0.13)),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 82px);
  pointer-events: none;
}
.hero-copy, .hero-thesis { position: relative; z-index: 1; }
.eyebrow, .section-kicker, .focus-meta, .copy-status, .result-count, .transcript-note {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1 {
  max-width: 860px;
  margin: 12px 0 18px;
  font-size: clamp(38px, 7vw, 82px);
  line-height: 0.95;
  letter-spacing: -0.07em;
  overflow-wrap: anywhere;
}
.lede {
  max-width: 780px;
  color: #d7e2f7;
  font-size: clamp(16px, 2vw, 21px);
  line-height: 1.75;
}
.hero-thesis {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  background: rgba(2, 6, 14, 0.38);
  color: #d9e4f7;
  line-height: 1.68;
}
.hero-thesis strong { color: var(--gold); }
.mode-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px;
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(2, 6, 14, 0.54);
}
.mode-tab, .primary, .secondary, .topic-button, .time-pill, .timecode {
  border: 0;
  color: var(--text);
}
.mode-tab {
  padding: 10px 16px;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
}
.mode-tab.is-active {
  color: #02111a;
  background: linear-gradient(135deg, var(--cyan), var(--gold));
}
.panel { display: none; }
.panel.is-active { display: block; }

.brief-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(360px, 1.45fr) minmax(300px, 0.88fr);
  gap: 18px;
  margin-top: 18px;
  align-items: stretch;
}
.lineage-rail, .lineage-lab, .evidence-card { padding: 20px; }
.lineage-rail { display: flex; flex-direction: column; gap: 12px; }
#topicRail { display: grid; gap: 10px; }
.topic-button {
  width: 100%;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  text-align: left;
  padding: 13px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  background: rgba(4, 8, 18, 0.44);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}
.topic-button:hover, .topic-button.is-active {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  background: rgba(80, 132, 255, 0.16);
}
.topic-button span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(115, 228, 255, 0.14);
  color: var(--cyan);
  font-weight: 800;
}
.topic-button strong { overflow-wrap: anywhere; }
.topic-button em { color: var(--muted); font-style: normal; font-size: 12px; line-height: 1.45; }

.lineage-lab { min-height: 560px; }
.lab-heading h2, .takeaway-card h2, .audio-card h2 { margin: 6px 0 10px; font-size: clamp(24px, 3.2vw, 38px); line-height: 1.1; letter-spacing: -0.045em; }
.lab-heading p:not(.section-kicker), .audio-card p, .takeaway-card p { color: #c8d4e8; line-height: 1.68; }
.canvas-wrap {
  position: relative;
  min-height: 430px;
  border: 1px solid rgba(115, 228, 255, 0.16);
  border-radius: 24px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 45%, rgba(115, 228, 255, 0.12), transparent 48%), rgba(2, 6, 14, 0.56);
}
#lineageCanvas { display: block; width: 100%; height: 430px; }
.canvas-fallback {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 14px;
  color: rgba(236, 245, 255, 0.74);
  font-size: 13px;
  line-height: 1.5;
  pointer-events: none;
}
.lineage-path { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.path-chip {
  padding: 7px 10px;
  border: 1px solid rgba(115, 228, 255, 0.2);
  border-radius: 999px;
  color: #d8f8ff;
  background: rgba(115, 228, 255, 0.08);
  font-size: 13px;
}

.evidence-card { display: flex; flex-direction: column; gap: 12px; }
.focus-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
#focusNumber {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(115,228,255,.2), rgba(255,207,115,.16));
  color: var(--gold);
  font-weight: 900;
  font-size: 18px;
}
.time-pill, .timecode {
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255, 207, 115, 0.12);
  color: var(--gold);
}
#focusTitle { margin: 0; font-size: clamp(24px, 3vw, 36px); line-height: 1.1; letter-spacing: -0.04em; }
.focus-hook { color: var(--cyan); font-weight: 700; line-height: 1.55; }
.focus-summary { color: #d6deed; line-height: 1.75; }
blockquote {
  margin: 0;
  padding: 16px 18px;
  border-left: 3px solid var(--cyan);
  border-radius: 16px;
  background: rgba(115, 228, 255, 0.08);
  color: #f4fbff;
  line-height: 1.68;
}
.evidence-list { margin: 0; padding-left: 18px; color: #ccd7e9; line-height: 1.7; }
.action-row, .audio-controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.primary, .secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  white-space: nowrap;
}
.primary { background: linear-gradient(135deg, var(--cyan), var(--gold)); color: #05111a; font-weight: 800; }
.secondary { border: 1px solid var(--line); background: rgba(255, 255, 255, 0.06); color: #dce8ff; }

.meter-board {
  display: grid;
  grid-template-columns: 1fr repeat(4, minmax(130px, 1fr));
  gap: 12px;
  align-items: center;
  padding: 18px;
  margin-top: 18px;
}
.meter { display: grid; gap: 8px; }
.meter span { color: #dce8ff; }
.meter div { height: 8px; border-radius: 999px; overflow: hidden; background: rgba(255,255,255,.08); }
.meter i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--cyan), var(--gold)); transition: width .3s ease; }
.meter strong { color: var(--gold); }
.takeaway-card { margin-top: 18px; padding: 24px; }
.takeaway-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.takeaway-grid article {
  min-height: 140px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  background: rgba(2, 6, 14, 0.38);
}
.takeaway-grid span { color: var(--cyan); font-weight: 900; }

.audio-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  padding: 24px;
  margin-top: 18px;
}
.clock { color: var(--muted); font-variant-numeric: tabular-nums; }
.source-link { color: var(--cyan); text-decoration: none; }
.transcript-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 14px;
  margin-top: 14px;
}
.transcript-tools input, .speaker-filter select {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  background: rgba(2, 6, 14, 0.62);
  outline: none;
}
.transcript-tools input { flex: 1 1 260px; padding: 0 16px; }
.speaker-filter { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); }
.speaker-filter select { padding: 0 14px; }
.copy-status, .result-count, .transcript-note { margin: 12px 4px 0; }
.transcript-list { display: grid; gap: 12px; margin-top: 14px; }
.transcript-group { padding: 18px; }
.transcript-head { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 8px; }
.transcript-speaker { color: var(--cyan); font-weight: 800; }
.transcript-module { color: var(--muted); font-size: 12px; }
.transcript-group p { margin: 10px 0 0; color: #d5dfef; line-height: 1.8; }
.transcript-row-time { color: var(--gold); font-size: 12px; font-variant-numeric: tabular-nums; }
.transcript-group.is-current { border-color: rgba(255, 207, 115, 0.56); box-shadow: 0 0 0 1px rgba(255, 207, 115, 0.1), var(--shadow); }
mark { color: #05111a; background: var(--gold); border-radius: 4px; padding: 0 3px; }

@media (max-width: 980px) {
  .hero-card, .brief-grid, .audio-card { grid-template-columns: 1fr; }
  .brief-grid { gap: 14px; }
  .lineage-lab { min-height: auto; }
  .meter-board { grid-template-columns: 1fr 1fr; }
  .meter-title { grid-column: 1 / -1; }
  .takeaway-grid { grid-template-columns: 1fr; }
  #topicRail { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .interview-shell { width: min(100% - 20px, 520px); padding: 14px 0 96px; }
  .hero-card, .lineage-rail, .lineage-lab, .evidence-card, .meter-board, .takeaway-card, .audio-card, .transcript-tools, .transcript-group { border-radius: 20px; }
  .hero-card { padding: 22px; }
  h1 { font-size: clamp(32px, 13vw, 48px); letter-spacing: -0.055em; }
  .lede { font-size: 15px; }
  #topicRail { grid-template-columns: 1fr; }
  .topic-button { grid-template-columns: 38px minmax(0, 1fr); }
  .canvas-wrap { min-height: 300px; }
  #lineageCanvas { height: 300px; }
  .meter-board { grid-template-columns: 1fr; }
  .audio-controls, .action-row, .transcript-tools { align-items: stretch; }
  .primary, .secondary, .source-link { width: 100%; }
  .speaker-filter { width: 100%; justify-content: space-between; }
  .speaker-filter select { flex: 1; }
}