/* =================================================================
   AudioCALM — Editorial / Anthropic-inspired stylesheet
   Warm off-white paper, serif display, restrained accent, lots of air.
   ================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --paper:     #F5F4EE;   /* warm off-white background */
  --paper-2:   #EFEDE4;   /* slightly deeper for hovers/cards */
  --rule:      #E5E2D6;   /* hairline rules */
  --rule-2:    #D6D2C2;   /* slightly stronger rule */
  --ink:       #1A1915;   /* primary text */
  --ink-soft:  #4A4940;   /* secondary text */
  --ink-mute:  #807C6F;   /* tertiary / metadata */
  --accent:    #CC785C;   /* Anthropic-ish coral */
  --accent-ink:#A85B45;   /* darker for hover */
  --highlight: #F1ECDD;   /* OURS row tint */
  --serif:     "Fraunces", "Tiempos Headline", "Source Serif Pro", "Charter",
               "Iowan Old Style", "Apple Garamond", Georgia, serif;
  --sans:      "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
               "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono:      "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --display:   "Space Grotesk", "Inter", -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

::selection { background: var(--accent); color: var(--paper); }

a { color: var(--ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-ink); }

/* ============== TOP BAR (logo + nav) ============== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(245, 244, 238, 0.88);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}
.brand .logo {
  width: 22px; height: 22px; color: var(--accent);
}
.brand .wordmark {
  font-family: var(--serif);
  font-weight: 500;
  font-style: italic;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 0.88rem;
}
.topnav a {
  color: var(--ink-soft);
  text-decoration: none;
  position: relative;
  padding: 4px 2px;
  transition: color .15s ease;
}
.topnav a:hover { color: var(--accent-ink); }
.topnav a.is-active { color: var(--ink); }
.topnav a.is-active::after {
  content: "";
  position: absolute;
  left: 2px; right: 2px; bottom: -14px;
  height: 2px;
  background: var(--accent);
}

/* ============== HERO ============== */
.hero {
  padding: 110px 0 96px;
  border-bottom: 1px solid var(--rule);
  position: relative;
  text-align: center;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
}
.hero::before {
  top: 56px;
  width: 32px;
  height: 1px;
}
.hero::after {
  bottom: -1px;
  width: 56px;
  height: 1px;
}
.hero .title-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  margin: 0 auto 32px;
}
.wordmark-xl {
  display: inline-block;
  font-family: var(--serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(4rem, 9vw, 7.2rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--accent);
}
.title-tagline {
  display: block;
  font-family: var(--serif);
  font-weight: 400;
  font-style: normal;
  font-size: clamp(1.3rem, 2vw, 1.75rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 720px;
}
.hero-tldr {
  font-family: var(--serif);
  font-weight: 500;
  font-style: normal;
  font-size: clamp(0.98rem, 1.3vw, 1.08rem);
  line-height: 1.55;
  letter-spacing: -0.015em;
  color: var(--ink);
  max-width: 560px;
  margin: 0 auto;
}
.hero-tldr em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}
.hero-tldr em > * { font-style: italic; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--sans);
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--rule-2);
  border-radius: 999px;
  text-decoration: none;
  transition: all 0.15s ease;
}
.btn:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn-primary:hover {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
  color: var(--paper);
}
.btn-disabled {
  opacity: 0.45;
  pointer-events: none;
}

/* ============== SECTIONS ============== */
main { padding: 72px 0 96px; }

section {
  margin-bottom: 88px;
  scroll-margin-top: 80px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  display: block;
}

h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.5rem, 2.4vw, 1.85rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
}
h2 .sec-num {
  font-family: var(--serif);
  font-weight: 400;
  font-style: italic;
  font-size: 0.95em;
  color: var(--accent);
  letter-spacing: 0;
  margin-right: 18px;
  display: inline-block;
  min-width: 1.4em;
}
h2 .sec-num::after {
  content: ".";
  color: var(--accent);
  margin-left: 1px;
}

h2 + .section-intro,
h2 + p {
  margin-top: 0;
}

h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.25rem;
  margin: 36px 0 14px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 16px;
  color: var(--ink-soft);
}

.section-intro {
  color: var(--ink-soft);
  margin-bottom: 32px;
  font-size: 1rem;
}

hr.divider {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 0 0 56px;
}

/* ============== METHOD CARDS ============== */
.figure {
  margin: 28px 0 28px;
  text-align: center;
}
.figure img {
  max-width: 100%;
  display: block;
  margin: 0 auto;
}
.figure-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  background: var(--paper-2);
  border: 1px dashed var(--rule-2);
  color: var(--ink-mute);
  font-size: 0.92rem;
}
.figure-placeholder code {
  font-family: var(--mono);
  background: var(--paper);
  padding: 2px 6px;
  font-size: 0.82rem;
  margin-left: 4px;
}
figcaption {
  margin-top: 14px;
  font-size: 0.86rem;
  color: var(--ink-mute);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
  text-align: left;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 36px;
  border-top: 1px solid var(--rule);
}
@media (max-width: 720px) {
  .grid-3 { grid-template-columns: 1fr; }
  .card { border-right: 0 !important; }
}
.card {
  padding: 24px 24px 28px;
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}
.card:nth-child(3n) { border-right: 0; }
.card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.card h3 .num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  min-width: 1.6em;
}
.card p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* ============== SAMPLE BLOCKS — 3 per row ============== */
.samples {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
@media (max-width: 900px) {
  .samples { grid-template-columns: repeat(2, 1fr); gap: 18px; }
}
@media (max-width: 560px) {
  .samples { grid-template-columns: 1fr; gap: 16px; }
}

.sample-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #FBFAF5;
  border: 1px solid var(--rule);
  padding: 18px 18px 14px;
  min-width: 0;
  transition: border-color .18s ease, transform .18s ease;
}
.sample-card:hover {
  border-color: var(--rule-2);
}

.sample-card .corner-num { display: none; }

.sample-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 10px;
  gap: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
.sample-id {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--ink-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.sample-source {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--ink-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sample-text {
  font-family: var(--serif);
  font-size: 0.98rem;
  line-height: 1.45;
  color: var(--ink);
  margin: 0 0 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: calc(0.98rem * 1.45 * 3);  /* reserve 3 lines so card bottoms align */
}
.sample-text .label { display: none; }

.sample-prompt {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  margin-bottom: 14px;
}
.sample-prompt .label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.sample-prompt audio { width: 100%; height: 30px; }

.sample-rows {
  display: flex;
  flex-direction: column;
  margin-top: auto;
}
.sample-row {
  padding: 10px 0;
  border-top: 1px solid var(--rule);
}
.sample-row:first-child { border-top: 0; padding-top: 4px; }

.sample-row.is-gt .model,
.sample-row.is-ours .model { color: var(--ink); }

/* In the main card the two rows are visually equal — only the small
 * badges distinguish them. The accent treatment is reserved for the
 * modal, where OURS sits next to many baselines.                    */
.modal-body .sample-row.is-ours {
  position: relative;
  background: linear-gradient(90deg, var(--highlight) 0%, rgba(241,236,221,0) 100%);
  border-top: 0;
}
.modal-body .sample-row.is-ours::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
}

.sample-row .model {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  letter-spacing: 0.01em;
}
.modal-body .sample-row.is-ours .model {
  color: var(--accent-ink);
  font-weight: 600;
}
.sample-row .badge,
.modal-body .badge {
  font-family: var(--mono);
  font-size: 0.58rem;
  padding: 1px 6px;
  font-weight: 500;
  letter-spacing: 0.1em;
  border: 1px solid transparent;
}
.badge-ours {
  color: var(--paper);
  background: var(--accent);
  border-color: var(--accent);
}
.badge-gt {
  color: var(--ink);
  background: transparent;
  border-color: var(--ink);
}

/* compact native audio controls */
.sample-row audio,
.sample-prompt audio {
  width: 100%;
  height: 32px;
  border-radius: 999px;
  background: var(--paper-2);
}
.sample-row.empty audio { opacity: 0.4; }
audio::-webkit-media-controls-enclosure {
  border-radius: 999px;
  background: var(--paper-2);
}

.sample-row .missing-hint {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--ink-mute);
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* native audio player tweaks */
audio::-webkit-media-controls-panel {
  background-color: var(--paper-2);
}

/* ============== COMPARE BUTTON ============== */
.compare-btn {
  appearance: none;
  -webkit-appearance: none;
  margin-top: 12px;
  padding: 9px 12px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: transparent;
  border: 1px solid var(--rule-2);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease, transform .15s ease;
}
.compare-btn:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.compare-btn:hover .compare-btn-arrow { transform: translateX(2px); }
.compare-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.compare-btn-arrow {
  font-family: var(--serif);
  font-size: 0.95rem;
  letter-spacing: 0;
  transition: transform .15s ease;
}

/* ============== MODAL ============== */
body.no-scroll { overflow: hidden; }

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 6vh 24px;
  overflow-y: auto;
}
.modal.is-open { display: flex; }
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 25, 21, 0.55);
  backdrop-filter: saturate(140%) blur(4px);
  animation: fade-in .18s ease;
}
.modal-panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 680px;
  background: var(--paper);
  border: 1px solid var(--rule-2);
  box-shadow: 0 24px 64px -16px rgba(26, 25, 21, 0.35);
  padding: 28px 32px 24px;
  animation: pop-in .18s ease;
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0)   scale(1); }
}

.modal-header {
  position: relative;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--rule);
  padding-right: 36px;
}
.modal-eyebrow {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--ink-mute);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.modal-text {
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--ink);
  margin: 0;
}
.modal-close {
  position: absolute;
  top: -4px;
  right: -8px;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--rule-2);
  color: var(--ink-soft);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  border-radius: 999px;
  transition: all .15s ease;
}
.modal-close:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.modal-prompt {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  margin-bottom: 18px;
}
.modal-prompt .label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.modal-prompt audio { width: 100%; height: 32px; }

.modal-body { display: flex; flex-direction: column; }
.modal-body .sample-row {
  padding: 12px 0;
  border-top: 1px solid var(--rule);
}
.modal-body .sample-row:first-child { border-top: 0; padding-top: 4px; }
.modal-body .sample-row.is-ours {
  margin: 0 -32px;
  padding: 12px 32px;
}
.modal-body .sample-row.is-gt { border-top: 0; }
.modal-body .sample-row .model { font-size: 0.88rem; }

.modal-group-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 18px 0 4px;
}
.modal-body .sample-row + .modal-group-label {
  border-top: 1px solid var(--rule);
  padding-top: 16px;
}

@media (max-width: 560px) {
  .modal { padding: 3vh 12px; }
  .modal-panel { padding: 22px 20px 18px; }
  .modal-body .sample-row.is-ours { margin: 0 -20px; padding: 12px 20px; }
}

/* ============== RESULTS TABLES ============== */
.table-wrap {
  overflow-x: auto;
  margin: 16px 0 32px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
table.results {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}
table.results th, table.results td {
  padding: 10px 14px;
  text-align: center;
  border-bottom: 1px solid var(--rule);
}
table.results th {
  font-weight: 500;
  color: var(--ink);
  font-size: 0.8rem;
  font-family: var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--ink);
}
/* first column: model name → left aligned */
table.results td:first-child,
table.results th:first-child { text-align: left; }

/* leaf metric headers (WER ↓ / SIM ↑ / FAD ↓ ...) and numeric body cells → right aligned, so headers and values share a right edge */
table.results thead tr:last-child th,
table.results tbody td + td {
  text-align: right;
  padding-right: 18px;
}
table.results tr.group td {
  background: transparent;
  color: var(--ink-mute);
  text-align: left;
  font-size: 0.78rem;
  font-family: var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 14px 6px;
  border-bottom: 0;
}
table.results tr.ours {
  background: var(--highlight);
}
table.results tr.ours td { color: var(--ink); font-weight: 500; }
table.results tr.ours td:first-child {
  position: relative;
}
table.results tr.ours td:first-child::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
}
table.results b { font-weight: 600; }
table.results u { text-decoration-color: var(--ink-mute); text-underline-offset: 2px; }

/* ============== BIBTEX ============== */
pre {
  background: var(--ink);
  color: var(--paper);
  padding: 22px 24px;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.65;
  font-family: var(--mono);
}
code { font-family: var(--mono); }

/* ============== FOOTER ============== */
footer {
  border-top: 1px solid var(--rule);
  background: transparent;
  padding: 36px 0;
  text-align: center;
  color: var(--ink-mute);
  font-size: 0.84rem;
}
footer .brand {
  display: inline-flex;
  margin-bottom: 12px;
}
footer .brand .logo { color: var(--accent); }

/* ============== RESPONSIVE ============== */
@media (max-width: 600px) {
  .container { padding: 0 22px; }
  .topbar-inner { padding: 12px 22px; }
  .hero { padding: 60px 0 48px; }
  main { padding: 48px 0 64px; }
  section { margin-bottom: 64px; }
  .topnav { gap: 14px; font-size: 0.82rem; }
}