/* Live Captions demo. System fonts only (no external requests; see the page's CSP). */

:root {
  color-scheme: light dark;
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #15171a;
  --muted: #6b7280;
  --border: #e3e5e8;
  --field: #f9fafb;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --partial: #8a94a6;
  --error-bg: #fef2f2;
  --error-text: #b91c1c;
  --good: #15803d;
  --fair: #b45309;
  --wrong-bg: #fee2e2;
  --wrong-text: #b91c1c;
  --missing-bg: #ffedd5;
  --missing-text: #c2410c;
  --extra-bg: #dbeafe;
  --extra-text: #1d4ed8;
  --radius: 14px;
  --font: system-ui, -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic",
    "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #171a21;
    --text: #e8eaee;
    --muted: #9aa3b2;
    --border: #2a2f3a;
    --field: #1d212a;
    --accent: #3b82f6;
    --partial: #7c8597;
    --error-bg: #2a1416;
    --error-text: #fca5a5;
    --good: #4ade80;
    --fair: #fbbf24;
    --wrong-bg: #4c1d1d;
    --wrong-text: #fca5a5;
    --missing-bg: #4a2a12;
    --missing-text: #fdba74;
    --extra-bg: #1e3a5f;
    --extra-text: #93c5fd;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: start center;
  padding: 48px 16px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
}

.card {
  width: min(880px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 1px 2px rgb(0 0 0 / 4%), 0 8px 24px rgb(0 0 0 / 6%);
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Status pill: the color follows data-state, set by app.js. */
.status {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--field);
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}

.status::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentcolor;
}

.status[data-state="requesting"],
.status[data-state="connecting"],
.status[data-state="finishing"] {
  color: #d97706;
}

.status[data-state="listening"] {
  color: #16a34a;
}

.status[data-state="listening"]::before {
  animation: pulse 1.4s ease-in-out infinite;
}

.status[data-state="completed"] {
  color: var(--accent);
}

.status[data-state="error"] {
  color: var(--error-text);
}

@keyframes pulse {
  50% {
    opacity: 0.25;
  }
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px;
}

.field {
  display: grid;
  gap: 6px;
  flex: 1 1 240px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

.field-narrow {
  flex: 0 1 190px;
}

input,
select {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field);
  color: var(--text);
  font: inherit;
  font-weight: 400;
}

input:focus,
select:focus,
.button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.buttons {
  display: flex;
  gap: 8px;
}

.button {
  height: 40px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.button-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.button-quiet {
  height: 34px;
  padding: 0 12px;
  font-size: 0.85rem;
}

.error {
  margin: 16px 0 0;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--error-bg);
  color: var(--error-text);
  font-size: 0.9rem;
}

.notice {
  margin: 16px 0 0;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--field);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.9rem;
}

.captions {
  margin-top: 20px;
  min-height: 260px;
  max-height: 55vh;
  overflow-y: auto;
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--field);
}

.placeholder {
  margin: 0;
  color: var(--muted);
}

.transcript {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: keep-all; /* don't split Korean words mid-syllable block */
  overflow-wrap: anywhere;
}

/* Provisional text is visibly different from confirmed text (spec §12). */
.partial {
  color: var(--partial);
}

/* After a failure, provisional text that never became final is marked unconfirmed (spec §8). */
.partial.unconfirmed {
  text-decoration: line-through;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 16px;
}

.notice {
  margin: 0;
  max-width: 520px;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: right;
}

[hidden] {
  display: none !important;
}

@media (max-width: 600px) {
  .card {
    padding: 20px;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .notice {
    text-align: left;
  }
}

/* --- Reference transcript and accuracy --- */

.reference {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field);
}

.reference summary {
  padding: 10px 14px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.reference .hint {
  margin-left: 6px;
  font-weight: 400;
  color: var(--muted);
}

.reference textarea {
  display: block;
  width: calc(100% - 28px);
  margin: 0 14px 14px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  font: inherit;
  line-height: 1.6;
  resize: vertical;
}

.reference textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.accuracy {
  margin-top: 16px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.score {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
}

.score-main {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.score-label {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.score-value {
  font-size: 2rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.score-value[data-band="good"] {
  color: var(--good);
}

.score-value[data-band="fair"] {
  color: var(--fair);
}

.score-value[data-band="poor"] {
  color: var(--error-text);
}

.score-detail {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.comparison {
  margin: 14px 0 0;
  font-size: 1.05rem;
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

/* Highlight kinds (shared by the comparison and the legend). */
.seg.correct {
  color: var(--good);
}

.seg.wrong {
  background: var(--wrong-bg);
  color: var(--wrong-text);
  border-radius: 3px;
}

.seg.missing {
  background: var(--missing-bg);
  color: var(--missing-text);
  text-decoration: line-through;
  border-radius: 3px;
}

.seg.extra {
  background: var(--extra-bg);
  color: var(--extra-text);
  border-radius: 3px;
  padding: 0 2px;
}

.seg.extra::before {
  content: "+";
  opacity: 0.7;
}

.seg.pending {
  color: var(--partial);
}

/* What a wrong word was heard as, shown right after it. */
.seg.heard {
  margin-left: 2px;
  color: var(--wrong-text);
  font-size: 0.85em;
}

.seg.heard::before {
  content: "→ ";
  opacity: 0.7;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.8rem;
}

.legend .seg {
  padding: 1px 6px;
  border-radius: 4px;
}

.legend .seg.correct,
.legend .seg.pending {
  border: 1px solid var(--border);
}