:root {
  color-scheme: dark;
  --bg: #0f1218;
  --fg: #e6e9ef;
  --muted: #7c8291;
  --accent: #4a9eff;
  --accent-hot: #ff5c5c;
  --panel: #1a1f28;
  --border: #2a303c;
  --selected: #ffcc4d;
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  padding: 24px;
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  max-width: 1200px;
}

header h1 { margin: 0 0 4px; font-size: 22px; }
.hint { color: var(--muted); margin: 0 0 20px; }

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  align-items: end;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 16px;
}

.controls label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}

.controls select,
.controls input {
  padding: 6px 10px;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  min-width: 120px;
}

.controls input[type="text"] { min-width: 200px; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px 6px;
  margin: 0;
}
.filters legend {
  font-size: 11px;
  color: var(--muted);
  padding: 0 6px;
}
.filters label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--fg);
  cursor: pointer;
}
.filters input[type="checkbox"] { accent-color: var(--accent); }
.dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 2px;
}
.dot-eot        { background: rgba(255, 92, 92, 0.9); }
.dot-noneot     { background: rgba(124, 130, 145, 0.7); }
.dot-vadspeech  { background: rgba(82, 200, 139, 0.85); }
.dot-vadsilence { background: rgba(180, 190, 210, 0.7); }
.dot-vadend     { background: rgba(255, 130, 0, 0.9); }   /* orange — fallback EOT */

/* Small "?" badge that carries a native browser tooltip.
 * Native title tooltips wrap long text automatically, so we can put the
 * full explanation in the title attribute without HTML formatting. */
.help {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px; height: 14px;
  margin-left: 2px;
  border-radius: 50%;
  background: var(--border);
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
  cursor: help;
  user-select: none;
}
.help:hover { background: var(--accent); color: #fff; }
.help[data-tip]:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 10px;
  width: 280px;
  max-width: 280px;
  white-space: normal;
  text-align: left;
  background: #0b0e13;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  font: 400 12px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  z-index: 1000;
  pointer-events: none;
}
.help[data-tip]:hover::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--border);
  z-index: 1001;
  pointer-events: none;
}

button {
  padding: 8px 16px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--fg);
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: 0.4; cursor: default; }

button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
button.primary:hover:not(:disabled) { filter: brightness(1.1); }

.status {
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 12px;
}
.status.err { color: var(--accent-hot); }
.status.ok  { color: #52c88b; }

.waveWrap {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 16px;
}
.waveform  { min-height: 140px; }
.timeline  { min-height: 24px; margin-top: 4px; }

/* Region markers: min visible width even on very zoomed-out views, and
 * rounded caps so they read as tags rather than hair-lines. Colour
 * comes from the plugin (per-region via setOptions) — CSS only enforces
 * geometry / cursor feedback. */
.wavesurfer-region {
  min-width: 3px !important;
  border-radius: 2px;
}
.wavesurfer-region:hover { filter: brightness(1.2); cursor: pointer; }

.selectionBar {
  display: flex; align-items: center; gap: 12px;
  margin-top: 8px; padding: 6px 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--muted);
}
.selectionHint { color: var(--muted); }
.selectionInfo { color: var(--selected); font-weight: 600; }
.selectionBar button {
  padding: 4px 10px; font-size: 12px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.metrics > div {
  padding: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.metricLabel { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; }
.metricValue { font-size: 18px; font-weight: 600; margin-top: 4px; font-variant-numeric: tabular-nums; }

.probs h2 { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.probList {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 260px;
  overflow-y: auto;
  padding: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}
.probList .row {
  display: grid;
  grid-template-columns: 90px 90px 80px 80px 60px;
  gap: 12px;
  padding: 5px 8px;
  border-radius: 3px;
  cursor: pointer;
}
.probList .row:hover { background: rgba(255, 255, 255, 0.04); }
.probList .row.eot         { color: var(--accent-hot); }
.probList .row.cont        { color: var(--muted); }
.probList .row.vad-speech  { color: #52c88b; }
.probList .row.vad-silence { color: #b4bed2; }
.probList .row.vad-end     { color: #ff8200; font-weight: 600; }
.probList .row.selected { background: rgba(255, 204, 77, 0.18); outline: 1px solid var(--selected); }