src/styles.css

/* ─── palette ─────────────────────────────────────────────────────────────
 * Maharashtra Warli-art palette: gerua (geru / गेरू, ochre-red earth pigment
 * traditional to Warli wall paintings) + warm cream + kumkum highlight.
 * Aligned to the SVG header (`warli-strip.svg`) which uses #c34a19 → #9f320f
 * gradient on #fff8ec for the dancers/sun/microphones.
 *
 * Cream paper            #FAF3E7
 * Ivory card             #F2E8D3
 * Gerua (Warli red-ochre) #C34A19   ← was #E07A1F (too saffron-yellow)
 * Gerua dark             #9F320F   ← matches SVG gradient endpoint
 * Kumkum (deep red)      #8E2E2E
 * Ink brown              #2E1D10
 * Muted cocoa            #8C6E56
 * Warli white            #FFF8EC   ← matches SVG #fff8ec
 * Sage (success)         #6B8B4E
 */
:root {
  --bg: #FAF3E7;
  --card: #F2E8D3;
  --card-border: #D9C9A7;
  --accent: #C34A19;          /* gerua — earth-pigment red, authentic Warli */
  --accent-dark: #9F320F;     /* deep gerua, matches SVG gradient bottom */
  --accent-soft: #C34A1922;
  --red: #8E2E2E;
  --ink: #2E1D10;
  --muted: #8C6E56;
  --good: #6B8B4E;
  --bad: #A63A3A;
  --warli: #FFF8EC;
  font-family: "Inter", -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  line-height: 1.5;
}

/* ─── typography ──────────────────────────────────────────────────────────
 * Yatra One: festival/display feel for title + ornamentals
 * Tiro Devanagari Marathi: elegant serif for Devanagari body text
 */
.font-display { font-family: "Yatra One", "Tiro Devanagari Marathi", serif; }
.font-devanagari {
  font-family: "Inter", "Tiro Devanagari Marathi", "Noto Sans Devanagari", serif;
  font-weight: 400;
}

/* ─── warli border strip ─────────────────────────────────────────────────
 * Tribal art band — dancers, hut, deer, microphones, sun motifs in white on
 * saffron. Originals are 2172×154 PNG; we display at fixed pixel height and
 * stretch horizontally to the viewport (object-fit: cover).
 */
.warli-strip {
  width: 100%;
  margin-top: 24px;
  display: flex;
  justify-content: center;
  overflow: hidden;
}
.warli-strip img {
  /* Natural aspect (2172×154 ≈ 14:1). width:100% fills the viewport up to
   * max-width; past that the strip caps and cream gutters appear on either
   * side. No object-fit cropping, no distortion, triangle borders always
   * visible. */
  width: 100%;
  height: auto;
  max-width: 1600px;
  display: block;
}
.warli-strip--bottom {
  margin-top: 24px;
  /* No rotation — the SVG already has triangle borders on BOTH the top and
   * bottom edges of the strip, so the same image works for both header and
   * footer. Rotating 180° would have flipped figures upside-down. */
}

/* ─── layout ──────────────────────────────────────────────────────────── */
main {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

header {
  text-align: center;
  margin-bottom: 32px;
}
header h1 {
  font-family: "Yatra One", "Tiro Devanagari Marathi", serif;
  font-size: 38px;
  margin: 0 0 6px;
  color: var(--red);
  letter-spacing: 0;
}
header .sub {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
header .namaste {
  font-family: "Tiro Devanagari Marathi", serif;
  font-size: 18px;
  color: var(--accent-dark);
  margin-bottom: 8px;
  display: block;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 2px rgba(46, 29, 16, 0.04);
}

.status {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  color: var(--muted);
  padding: 10px 14px;
}
.status.ready { color: var(--good); }
.status.error { color: var(--bad); }

.model-gate {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-left: 3px solid var(--accent);
}
.model-gate-text { font-size: 14px; color: var(--ink); line-height: 1.7; }
.model-gate-text strong { color: var(--red); }
.model-gate-sub { color: var(--muted); font-size: 12px; display: block; margin-top: 4px; }
.model-gate-variant {
  display: block;
  font-size: 13px;
  cursor: pointer;
  padding: 2px 0;
}
.model-gate-variant input[type=radio] { accent-color: var(--accent); margin-right: 6px; }
.model-gate button { flex-shrink: 0; }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }

/* Row that puts the textarea label and the Transliterate utility button on
   the same line, label flush left and button flush right. */
.text-label-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}
.text-label-row label { margin: 0; }
.text-tool {
  background: transparent;
  color: var(--accent-dark);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
  font-family: "Inter", "Tiro Devanagari Marathi", sans-serif;
  cursor: pointer;
  transition: background 120ms, color 120ms, border-color 120ms;
}
.text-tool:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-dark);
}

textarea {
  width: 100%;
  background: var(--warli);
  color: var(--ink);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 19px;
  font-family: "Inter", "Tiro Devanagari Marathi", "Noto Sans Devanagari", serif;
  line-height: 1.55;
  resize: vertical;
}
textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.examples { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 6px; align-items: center; }
.examples-label { color: var(--muted); font-size: 12px; margin-right: 4px; }
.chip {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 13px;
  font-family: "Inter", "Tiro Devanagari Marathi", "Noto Sans Devanagari", serif;
  cursor: pointer;
  transition: background 120ms, color 120ms, border-color 120ms;
}
.chip:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-dark); }

.controls {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 14px;
  align-items: end;
  margin-top: 14px;
}
.controls select, .controls input[type=range] {
  width: 100%;
  background: var(--warli);
  color: var(--ink);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 7px 10px;
}
.controls input[type=range] {
  accent-color: var(--accent);
  padding: 4px 0;
}
.speed-control { margin-bottom: 0; }
.speed-control-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--muted);
}
.speed-control-row #speed-val {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--accent-dark);
  font-variant-numeric: tabular-nums;
}

button.primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 20px;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  font-family: "Inter", "Tiro Devanagari Marathi", sans-serif;
}
button.primary:hover { background: var(--accent-dark); }
button.primary:disabled { opacity: 0.45; cursor: default; }

.ab-test { margin-top: 10px; }

/* ─── audio output area ──────────────────────────────────────────────── */
/* ─── fused player: play/pause button + seekable waveform + time ─────── */
.player {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  align-items: center;
  background: var(--warli);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 14px;
}
.playpause {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  padding: 0;
  transition: background 120ms;
}
.playpause:hover { background: var(--accent-dark); }
.playpause.playing { font-size: 16px; }

.player-main {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.waveform {
  width: 100%;
  height: 56px;
  background: transparent;
  cursor: pointer;
  display: block;
}
.waveform:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-radius: 4px; }
.player-time {
  display: flex;
  justify-content: space-between;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--muted);
  font-feature-settings: "tnum";
  padding: 0 2px;
}

/* ─── compact transcript (default view) — Marathi text with per-word hl ── */
.transcript-compact {
  font-family: "Inter", "Tiro Devanagari Marathi", "Noto Sans Devanagari", serif;
  font-size: 24px;
  line-height: 1.7;
  padding: 14px 16px;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: var(--warli);
  color: var(--ink);
  min-height: 60px;
}
.transcript-compact .word {
  display: inline-block;
  padding: 1px 4px;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 150ms ease, color 150ms ease;
}
.transcript-compact .word:hover { background: var(--accent-soft); }
.transcript-compact .word:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.transcript-compact .word.active {
  background: var(--accent);
  color: #fff;
}
.transcript-compact .word.past { color: var(--muted); }

/* ─── expandable per-word detail (IPA + timing) ───────────────────────── */
.transcript-details {
  margin-top: 10px;
}
.transcript-details > summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 12px;
  padding: 4px 6px;
  user-select: none;
}
.transcript-details > summary:hover { color: var(--accent-dark); }
.transcript-details[open] > summary { margin-bottom: 8px; }

/* ─── side-by-side Devanagari / IPA / timing columns ─────────────────── */
.sidebyside {
  display: grid;
  grid-template-columns: minmax(140px, 1.2fr) minmax(160px, 1.8fr) 2fr;
  gap: 0;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--warli);
}
.sidebyside .col-head {
  font-family: "Yatra One", serif;
  font-size: 13px;
  color: var(--red);
  padding: 8px 12px;
  border-bottom: 1px solid var(--card-border);
  background: #EFE2C5;
  letter-spacing: 0.02em;
}
.sidebyside .row {
  display: contents;
}
.sidebyside .cell {
  padding: 10px 12px;
  border-bottom: 1px solid #E8DBBF;
  display: flex;
  align-items: center;
  transition: background-color 180ms ease;
}
.sidebyside .row.active .cell { background: var(--accent-soft); }
.sidebyside .row.past .cell { color: var(--muted); }
.sidebyside .row:last-child .cell { border-bottom: none; }

.cell.devanagari {
  font-family: "Inter", "Tiro Devanagari Marathi", "Noto Sans Devanagari", serif;
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
}
.sidebyside .row.active .cell.devanagari { color: var(--red); }

.cell.ipa {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px;
  color: var(--accent-dark);
}

.cell.timing {
  position: relative;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--muted);
  padding: 10px 12px;
}
.cell.timing .bar {
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 6px;
  height: 4px;
  background: #E8DBBF;
  border-radius: 2px;
  overflow: hidden;
}
.cell.timing .bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transform-origin: left center;
  transition: transform 80ms linear;
}
.sidebyside .row.past .cell.timing .bar-fill {
  background: var(--muted);
  transform: scaleX(1);
}
.cell.timing .range {
  font-feature-settings: "tnum";
  margin-right: 10px;
}

/* ─── Marathi facts sidebar ──────────────────────────────────────────── */
.facts {
  background: #EFE2C5;
  border-left: 3px solid var(--accent);
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--ink);
  margin-top: 14px;
  line-height: 1.55;
}
.facts strong { color: var(--red); font-weight: 600; }
.facts .ipa-inline {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--accent-dark);
}

/* ─── misc ───────────────────────────────────────────────────────────── */
.details { margin-top: 12px; }
.details summary { cursor: pointer; color: var(--muted); font-size: 12px; }
.phonemes, .word-timings {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--muted);
  white-space: pre-wrap;
  margin: 8px 0 0;
  padding: 10px;
  background: #EAE0C5;
  border-radius: 6px;
  max-height: 220px;
  overflow: auto;
}

footer {
  margin-top: 40px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}
footer a,
header p a { color: var(--accent-dark); text-decoration: underline; }
footer a:hover,
header p a:hover { color: var(--red); }

/* download button on the player — small circular, sits to the right of the waveform */
.audio-dl-btn {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: var(--warli);
  color: var(--accent-dark);
  font-size: 16px;
  line-height: 34px;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background 120ms, color 120ms, border-color 120ms;
  align-self: center;
  margin-left: 8px;
}
.audio-dl-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

/* voice picker: "🎧 Reference clip" link sits above the <select>, right-aligned */
.voice-control { margin-bottom: 0; }
.voice-control-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}
.voice-ref-link {
  font-size: 11px;
  color: var(--accent-dark);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent-soft);
  cursor: pointer;
  transition: color 120ms, border-color 120ms;
}
.voice-ref-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* performance metrics card — 3-column grid below the output transcript */
.metrics-card {
  margin-top: 18px;
}
.metrics-header {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
  font-weight: 600;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 600px) {
  .metrics-grid { grid-template-columns: 1fr; }
}
.metric {
  background: var(--warli);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 12px 14px;
}
.metric-highlight {
  background: var(--accent-soft);
  border-color: var(--accent);
}
.metric-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
.metric-value {
  font-size: 28px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.metric-highlight .metric-value { color: var(--accent-dark); }
.metric-unit {
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
  margin-left: 3px;
}
.metric-context {
  font-size: 10px;
  color: var(--muted);
  margin-top: 6px;
  letter-spacing: 0.2px;
}