/* KoeOkoshi — styles. Light/dark via prefers-color-scheme. No external assets. */
:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --border: #e2e5ea;
  --text: #1a1d21;
  --text-dim: #5c636e;
  --accent: #1f6feb;
  --accent-ink: #ffffff;
  --accent-soft: #e8f0fe;
  --good: #1a7f37;
  --good-soft: #e6f4ea;
  --warn: #9a6700;
  --danger: #cf222e;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(16, 22, 26, 0.06), 0 6px 20px rgba(16, 22, 26, 0.05);
  --maxw: 760px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --surface: #161b22;
    --surface-2: #1c2230;
    --border: #2a313c;
    --text: #e6edf3;
    --text-dim: #9aa4b2;
    --accent: #4d8bff;
    --accent-ink: #0d1117;
    --accent-soft: #15233d;
    --good: #3fb950;
    --good-soft: #122017;
    --warn: #d29922;
    --danger: #f85149;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    "Hiragino Sans", "Noto Sans JP", Meiryo, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px 80px; }

/* Header */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 22px 0 10px;
}
.brand { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.brand h1 { font-size: 1.35rem; margin: 0; letter-spacing: -0.01em; }
.brand .tagline { color: var(--text-dim); font-size: 0.92rem; }
.lang-toggle { display: inline-flex; background: var(--surface-2);
  border: 1px solid var(--border); border-radius: 999px; padding: 3px; }
.lang-toggle button {
  border: 0; background: transparent; color: var(--text-dim);
  font: inherit; font-size: 0.85rem; padding: 5px 12px; border-radius: 999px;
  cursor: pointer;
}
.lang-toggle button[aria-pressed="true"] {
  background: var(--surface); color: var(--text); box-shadow: var(--shadow);
}

/* Hero */
.hero { padding: 26px 0 8px; }
.hero h2 {
  font-size: clamp(1.5rem, 4.5vw, 2.1rem); margin: 0 0 8px; letter-spacing: -0.02em;
}
.hero p { color: var(--text-dim); margin: 0; max-width: 52ch; }

/* Cards */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px; margin: 18px 0;
}
.card h3 { margin: 0 0 10px; font-size: 1.05rem; }
.muted { color: var(--text-dim); }
.small { font-size: 0.88rem; }

/* Model gate */
.gate .gate-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.gate-status { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--text-dim); flex: 0 0 auto; }
.gate.is-ready .dot { background: var(--good); }
.gate.is-loading .dot { background: var(--accent); animation: pulse 1.1s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }

/* Progress bar */
.progress { height: 8px; background: var(--surface-2); border-radius: 999px;
  overflow: hidden; margin: 12px 0 4px; border: 1px solid var(--border); }
.progress > span { display: block; height: 100%; width: 0%;
  background: var(--accent); transition: width .2s ease; }
.progress.indeterminate > span { width: 35%; animation: slide 1.1s infinite ease-in-out; }
@keyframes slide { 0%{margin-left:-35%} 100%{margin-left:100%} }

/* Buttons */
button.btn {
  font: inherit; font-weight: 600; cursor: pointer; border-radius: var(--radius-sm);
  padding: 10px 16px; border: 1px solid var(--border); background: var(--surface-2);
  color: var(--text);
}
button.btn:hover { border-color: var(--text-dim); }
button.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
button.btn.primary:hover { filter: brightness(1.05); }
button.btn.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
button.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 26px 20px; text-align: center; transition: border-color .15s, background .15s;
  background: var(--surface-2);
}
.dropzone.drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone p { margin: 6px 0; }
.file-info { display: none; gap: 20px; flex-wrap: wrap; margin-top: 14px;
  padding-top: 14px; border-top: 1px solid var(--border); }
.file-info.show { display: flex; }
.file-info dt { color: var(--text-dim); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }
.file-info dd { margin: 2px 0 0; font-weight: 600; word-break: break-all; }

/* Controls row */
.controls { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.82rem; color: var(--text-dim); font-weight: 600; }
select {
  font: inherit; padding: 9px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
.run-status { margin-top: 12px; color: var(--text-dim); font-variant-numeric: tabular-nums; }
.recording-dot { color: var(--danger); font-weight: 700; }

/* Transcript */
.transcript { margin-top: 8px; }
.segments { display: flex; flex-direction: column; gap: 2px; max-height: 420px;
  overflow: auto; padding: 4px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--surface-2); }
.seg { display: grid; grid-template-columns: 72px 1fr; gap: 12px;
  padding: 7px 10px; border-radius: 7px; }
.seg:hover { background: var(--surface); }
.seg time { color: var(--accent); font-variant-numeric: tabular-nums;
  font-size: 0.85rem; padding-top: 1px; }
.seg span { white-space: pre-wrap; }

/* How it works list */
ul.limits { margin: 8px 0 0; padding: 0; list-style: none; }
ul.limits li { position: relative; padding: 7px 0 7px 26px; border-top: 1px solid var(--border); }
ul.limits li:first-child { border-top: 0; }
ul.limits li::before { content: ""; position: absolute; left: 4px; top: 15px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }

/* Banner / errors */
.banner { border-radius: var(--radius-sm); padding: 12px 14px; margin: 14px 0; display: none; }
.banner.show { display: block; }
.banner.error { background: color-mix(in srgb, var(--danger) 12%, var(--surface));
  border: 1px solid var(--danger); color: var(--text); }

/* Ad slot seam (collapsed; no ad code). Hidden unless CONFIG.ADS_ENABLED. */
.ad-slot { display: none; }
.ad-slot.enabled { display: block; margin: 18px 0; min-height: 90px;
  border: 1px dashed var(--border); border-radius: var(--radius-sm); }

footer.site-footer { color: var(--text-dim); font-size: 0.86rem;
  text-align: center; padding-top: 24px; border-top: 1px solid var(--border); margin-top: 28px; }

[hidden] { display: none !important; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

@media (max-width: 520px) {
  .seg { grid-template-columns: 60px 1fr; gap: 8px; }
  .site-header { align-items: flex-start; }
}