/* ---------------------------------------------------------------
   euro-asr-bench — a lab-report aesthetic for an ASR measurement.
   Palette: cool paper + navy ink + two model accents (violet/teal).
   Deliberately not dark-mode-with-neon, not cream-terracotta.
----------------------------------------------------------------*/

:root {
  --paper: #eef1f4;
  --paper-raised: #ffffff;
  --line: #d3dbe1;
  --line-strong: #b7c2cb;
  --ink: #161b22;
  --ink-muted: #545f6b;
  --ink-faint: #7c8792;

  --nova: #5b4ea6;
  --nova-soft: #ece9f7;
  --whisper: #157b73;
  --whisper-soft: #e2f2f0;

  --error: #a83b32;
  --error-soft: #f6e4e1;
  --ok: #2f7d4f;

  --radius-sm: 3px;
  --radius-md: 6px;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #12151a;
    --paper-raised: #1a1e25;
    --line: #2a303a;
    --line-strong: #3a4149;
    --ink: #e9ecef;
    --ink-muted: #9aa4b0;
    --ink-faint: #6d7680;

    --nova: #9d8fe0;
    --nova-soft: #241f3a;
    --whisper: #4fd1c5;
    --whisper-soft: #133330;

    --error: #e0776b;
    --error-soft: #3a2320;
    --ok: #63c98a;
  }
}
:root[data-theme="dark"] {
  --paper: #12151a;
  --paper-raised: #1a1e25;
  --line: #2a303a;
  --line-strong: #3a4149;
  --ink: #e9ecef;
  --ink-muted: #9aa4b0;
  --ink-faint: #6d7680;

  --nova: #9d8fe0;
  --nova-soft: #241f3a;
  --whisper: #4fd1c5;
  --whisper-soft: #133330;

  --error: #e0776b;
  --error-soft: #3a2320;
  --ok: #63c98a;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--nova-soft);
  color: var(--ink);
}

a {
  color: var(--ink);
  text-decoration-color: var(--line-strong);
  text-underline-offset: 3px;
}
a:hover {
  text-decoration-color: currentColor;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.prose {
  max-width: 660px;
}

section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

section:first-of-type,
.hero {
  border-top: none;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}

h2 {
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  font-optical-sizing: auto;
}

h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

p {
  margin: 0 0 1em;
  color: var(--ink);
}

.muted {
  color: var(--ink-muted);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

code {
  font-family: var(--font-mono);
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.4em;
  font-size: 0.9em;
}

/* ---------- Hero ---------- */

.hero {
  padding: 48px 0 40px;
}

.hero .context {
  font-size: 0.95rem;
  color: var(--ink-muted);
  margin-bottom: 18px;
  max-width: 640px;
}

.hero h1 {
  font-size: clamp(1.7rem, 1.15rem + 2.4vw, 2.7rem);
  max-width: 900px;
  font-optical-sizing: auto;
}

.hero h1 .num {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.92em;
}

.hero .sub {
  margin-top: 14px;
  color: var(--ink-muted);
  max-width: 620px;
  font-size: 0.98rem;
}

/* ---------- Leaderboard ---------- */

.legend {
  display: flex;
  gap: 22px;
  margin: 28px 0 18px;
  font-size: 0.88rem;
  color: var(--ink-muted);
}
.legend .swatch {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.legend .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.dot.nova { background: var(--nova); }
.dot.whisper { background: var(--whisper); }

.leaderboard {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--paper-raised);
}

.lb-row {
  display: grid;
  grid-template-columns: 130px 1fr 1fr 70px;
  gap: 18px;
  align-items: center;
  padding: 14px 18px;
  border-top: 1px solid var(--line);
}
.lb-row:first-child { border-top: none; }
.lb-row.head {
  font-size: 0.78rem;
  text-transform: none;
  color: var(--ink-faint);
  padding-top: 10px;
  padding-bottom: 10px;
}

.lb-lang {
  font-weight: 600;
}
.lb-lang .code {
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.82em;
  margin-left: 6px;
}

.bar-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}
.bar-track {
  position: relative;
  flex: 1;
  height: 9px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 5px;
  overflow: hidden;
}
.bar-fill {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  border-radius: 5px 0 0 5px;
}
.bar-fill.nova { background: var(--nova); }
.bar-fill.whisper { background: var(--whisper); }
.bar-value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  width: 4.6em;
  flex-shrink: 0;
  text-align: right;
}
.bar-ci {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
  width: 5.4em;
  flex-shrink: 0;
}

.lb-n {
  text-align: right;
  font-family: var(--font-mono);
  color: var(--ink-faint);
  font-size: 0.85rem;
}

/* mobile leaderboard */
@media (max-width: 640px) {
  .lb-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 16px 16px;
  }
  .lb-row.head { display: none; }
  .lb-n {
    text-align: left;
    font-size: 0.78rem;
  }
  .bar-ci { display: none; }
}

/* ---------- Callout ---------- */

.callout {
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--ink);
  border-radius: var(--radius-md);
  padding: 18px 22px;
}
.callout h3 { margin-bottom: 0.4em; }
.callout p:last-child { margin-bottom: 0; }

/* ---------- Stats row ---------- */

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.stat {
  background: var(--paper-raised);
  padding: 18px 20px;
}
.stat .label {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-bottom: 6px;
}
.stat .value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
}
.stat .value.nova { color: var(--nova); }
.stat .value.whisper { color: var(--whisper); }

/* ---------- Try it ---------- */

.tryit-box {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
}

.tryit-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 16px 0;
}

.btn {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  transition: transform 0.08s ease, opacity 0.15s ease;
}
.btn:hover { opacity: 0.85; }
.btn:active { transform: translateY(1px); }
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.btn.secondary {
  background: transparent;
  color: var(--ink);
}
.btn.recording {
  background: var(--error);
  border-color: var(--error);
}

select.lang-select {
  font-family: var(--font-body);
  font-size: 0.92rem;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  color: var(--ink);
}

.file-drop {
  display: inline-block;
}
.file-drop input { display: none; }

.tryit-status {
  font-size: 0.88rem;
  color: var(--ink-muted);
  min-height: 1.4em;
}

.tryit-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 18px;
}
@media (max-width: 640px) {
  .tryit-results { grid-template-columns: 1fr; }
}

.result-card {
  border-radius: var(--radius-md);
  padding: 16px 18px;
  border: 1px solid var(--line);
}
.result-card.nova3 { background: var(--nova-soft); border-color: var(--nova); }
.result-card.whisper { background: var(--whisper-soft); border-color: var(--whisper); }
.result-card .model-name {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-muted);
  margin-bottom: 8px;
}
.result-card .transcript {
  font-size: 1rem;
  min-height: 1.6em;
}
.result-card .latency {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

.error-box {
  background: var(--error-soft);
  border: 1px solid var(--error);
  color: var(--error);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.9rem;
  margin-top: 12px;
}

/* ---------- Diff viewer ---------- */

.diff-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 20px;
}
.chip {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  color: var(--ink-muted);
  cursor: pointer;
}
.chip.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.clip-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.clip {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper-raised);
  overflow: hidden;
}

.clip-summary {
  width: 100%;
  display: grid;
  grid-template-columns: 60px 1fr auto auto;
  gap: 14px;
  align-items: center;
  padding: 12px 16px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  color: var(--ink);
}
.clip-summary .clip-id {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}
.clip-summary .clip-ref-preview {
  color: var(--ink-muted);
  font-size: 0.88rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.clip-summary .wer-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 3px 8px;
  border-radius: 10px;
  white-space: nowrap;
}
.wer-pill.nova3 { background: var(--nova-soft); color: var(--nova); }
.wer-pill.whisper { background: var(--whisper-soft); color: var(--whisper); }

@media (max-width: 640px) {
  .clip-summary {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

.clip-detail {
  display: none;
  padding: 4px 18px 18px;
  border-top: 1px solid var(--line);
}
.clip.open .clip-detail { display: block; }
.clip.open .chevron { transform: rotate(90deg); }

.diff-block {
  margin-top: 14px;
}
.diff-block .who {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
  margin-bottom: 5px;
}
.diff-line {
  line-height: 1.9;
  font-size: 0.98rem;
}
.diff-line .w-del {
  color: var(--error);
  text-decoration: line-through;
  text-decoration-thickness: 1.5px;
  opacity: 0.85;
  margin-right: 2px;
}
.diff-line .w-ins {
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  margin-right: 2px;
  padding: 0 1px;
}
.diff-line .w-sub-ref {
  color: var(--error);
  text-decoration: line-through;
  text-decoration-thickness: 1.5px;
  opacity: 0.85;
  margin-right: 2px;
}
.diff-line .w-sub-hyp {
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  margin-right: 2px;
  padding: 0 1px;
}
.diff-line.nova3 .w-ins, .diff-line.nova3 .w-sub-hyp { color: var(--nova); text-decoration-color: var(--nova); }
.diff-line.whisper .w-ins, .diff-line.whisper .w-sub-hyp { color: var(--whisper); text-decoration-color: var(--whisper); }
.diff-line .w-eq { margin-right: 2px; }

.reference-line {
  font-size: 0.98rem;
  color: var(--ink-muted);
  margin-bottom: 12px;
}

/* ---------- Methodology / About ---------- */

.kv-list {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 8px 20px;
  font-size: 0.95rem;
}
.kv-list dt {
  color: var(--ink-muted);
}
.kv-list dd {
  margin: 0;
}
@media (max-width: 640px) {
  .kv-list { grid-template-columns: 1fr; }
  .kv-list dt { margin-top: 10px; }
}

.about-panel {
  background: var(--paper-raised);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  padding: 22px 24px;
}
.about-panel .disclaimer {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

footer {
  padding: 30px 0 60px;
  color: var(--ink-faint);
  font-size: 0.85rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

:focus-visible {
  outline: 2px solid var(--nova);
  outline-offset: 2px;
}

.loading-line {
  color: var(--ink-faint);
  font-size: 0.9rem;
  padding: 20px 0;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}