:root {
  --bg: #0e1116;
  --bg-card: #161b23;
  --bg-elev: #1d242f;
  --fg: #e8ecf1;
  --fg-muted: #8b96a5;
  --accent: #4cc2a8;
  --accent-soft: rgba(76, 194, 168, 0.14);
  --danger: #e5646e;
  --warn: #e0a64b;
  --border: #262e3a;
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.55;
  min-height: 100vh;
}

/* ---------- header ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px clamp(16px, 4vw, 48px);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #121720, var(--bg));
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  font-size: 26px;
  color: var(--accent);
  filter: drop-shadow(0 0 8px rgba(76,194,168,.5));
}
.brand h1 { font-size: 22px; letter-spacing: .5px; }
.tagline { font-size: 12px; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 2px; }

.privacy-badge {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(76,194,168,.35);
  padding: 7px 14px;
  border-radius: 999px;
  cursor: help;
}
.privacy-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.8); }
}

/* ---------- layout ---------- */
main {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px clamp(14px, 4vw, 32px) 60px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.card h2 { font-size: 17px; margin-bottom: 10px; }
.card h3 { font-size: 14px; margin: 14px 0 8px; color: var(--fg-muted); }
.hint { color: var(--fg-muted); font-size: 14px; margin-bottom: 16px; }
.muted { color: var(--fg-muted); font-size: 13px; }
.hidden { display: none !important; }

/* ---------- disclaimer ---------- */
.disclaimer {
  position: relative;
  background: rgba(224, 166, 75, .08);
  border: 1px solid rgba(224, 166, 75, .4);
  color: #f0d9ae;
  border-radius: var(--radius);
  padding: 14px 40px 14px 18px;
  font-size: 14px;
}
.disclaimer button {
  position: absolute; top: 10px; right: 12px;
  background: none; border: none; color: inherit;
  font-size: 15px; cursor: pointer; opacity: .7;
}
.disclaimer button:hover { opacity: 1; }

/* ---------- buttons ---------- */
.btn {
  font-family: inherit;
  font-size: 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 10px 18px;
  cursor: pointer;
  background: var(--bg-elev);
  color: var(--fg);
  transition: transform .08s ease, background .15s ease, border-color .15s;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #08251e; font-weight: 600; }
.btn.primary:hover { background: #5fd4bb; }
.btn.ghost { background: transparent; }
.btn.big { padding: 13px 26px; font-size: 15px; }
.file-btn { user-select: none; }

.rec-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: currentColor; opacity: .85;
}
.recording .rec-dot { background: var(--danger); animation: pulse 1s infinite; }
.recording { background: var(--danger) !important; border-color: var(--danger) !important; color: #fff !important; }

.input-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.samples-row { margin-top: 14px; }
.or { color: var(--fg-muted); font-size: 13px; }

.chip {
  font-family: inherit;
  font-size: 13px;
  background: var(--bg-elev);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); }

/* ---------- player / status ---------- */
.player-wrap { margin-top: 18px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.player-wrap audio { flex: 1; min-width: 220px; height: 40px; }
.status { margin-top: 14px; font-size: 14px; color: var(--fg-muted); min-height: 20px; }
.status.err { color: var(--danger); }
.status.ok { color: var(--accent); }

/* ---------- results ---------- */
.result-head {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap; margin-bottom: 18px;
}
.dominant { display: flex; align-items: center; gap: 14px; }
.dominant-emoji { font-size: 44px; }
.dominant-label { font-size: 24px; font-weight: 700; text-transform: capitalize; }
.dominant-conf { font-size: 13px; }
.meta-col { text-align: right; white-space: pre-line; }

.bars { display: flex; flex-direction: column; gap: 10px; }
.bar-row { display: grid; grid-template-columns: 84px 1fr 52px; align-items: center; gap: 10px; }
.bar-name { font-size: 13px; text-transform: capitalize; text-align: right; color: var(--fg-muted); }
.bar-track {
  height: 18px; background: var(--bg-elev);
  border-radius: 6px; overflow: hidden;
}
.bar-fill {
  height: 100%; width: 0%;
  border-radius: 6px;
  transition: width .6s cubic-bezier(.2,.8,.2,1);
}
.bar-val { font-size: 13px; font-variant-numeric: tabular-nums; }

.timeline-wrap canvas { width: 100%; background: var(--bg-elev); border-radius: 8px; }

.fineprint { margin-top: 16px; font-size: 12.5px; color: var(--fg-muted); }

/* ---------- privacy ---------- */
.privacy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.p-item {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}
.p-icon { font-size: 22px; margin-bottom: 8px; }
.p-item h3 { font-size: 14px; margin: 0 0 6px; color: var(--fg); }
.p-item p { font-size: 13px; color: var(--fg-muted); }

/* ---------- ethics ---------- */
.ethics-list { padding-left: 20px; display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.ethics-list li::marker { color: var(--accent); }
details { margin-top: 16px; }
summary { cursor: pointer; color: var(--accent); font-size: 14px; }
.model-card { margin-top: 12px; border-collapse: collapse; width: 100%; font-size: 13px; }
.model-card th, .model-card td {
  text-align: left; padding: 7px 10px;
  border-bottom: 1px solid var(--border);
}
.model-card th { color: var(--fg-muted); font-weight: 500; width: 130px; }

footer {
  text-align: center; padding: 26px; color: var(--fg-muted); font-size: 13px;
  border-top: 1px solid var(--border);
}
footer a { color: var(--accent); text-decoration: none; }

@media (max-width: 560px) {
  .bar-row { grid-template-columns: 64px 1fr 44px; }
  .meta-col { text-align: left; }
}