:root {
  --bg: #111418; --card: #1b2027; --line: #2a313b; --fg: #e8ecf1; --muted: #8b95a3;
  --accent: #4f9cff; --danger: #ff5a5f; --ok: #3ecf8e; --warn: #ffb547;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
  padding: env(safe-area-inset-top) 12px calc(env(safe-area-inset-bottom) + 12px);
  max-width: 760px; margin-inline: auto;
}
header { display: flex; align-items: center; justify-content: space-between; padding: 12px 4px; }
h1 { font-size: 20px; margin: 0; }
h2 { font-size: 17px; margin: 0 0 8px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; margin-bottom: 12px; }
label { display: block; color: var(--muted); font-size: 14px; margin-bottom: 12px; }
input, select {
  width: 100%; margin-top: 4px; padding: 11px 12px; font-size: 16px; color: var(--fg);
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
}
button, .button {
  display: inline-block; padding: 11px 16px; font-size: 16px; border-radius: 10px; border: 1px solid var(--line);
  background: #252c35; color: var(--fg); text-decoration: none; cursor: pointer;
}
button:disabled { opacity: .5; }
.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
#start { width: 100%; padding: 16px; font-size: 18px; }
.hint, .muted { color: var(--muted); font-size: 13px; }
.link { color: var(--accent); text-decoration: none; font-size: 14px; }
.pill { font-size: 12px; padding: 3px 10px; border-radius: 999px; background: #2a313b; }
.pill.on { background: rgba(62, 207, 142, .18); color: var(--ok); }
.pill.off { color: var(--muted); }
.pill.auto { background: rgba(255, 181, 71, .18); color: var(--warn); }
.warn { margin: 12px 0; padding: 10px; border-radius: 10px; background: rgba(255, 181, 71, .12); color: var(--warn); }
.alert { position: sticky; top: 0; z-index: 2; padding: 12px; border-radius: 10px; background: var(--danger); color: #fff; font-weight: 600; margin-bottom: 8px; }
.bar { display: flex; align-items: center; gap: 12px; padding: 8px 4px 12px; }
.bar #stop { margin-left: auto; }
.rec { color: var(--danger); font-weight: 600; animation: blink 1.6s infinite; }
@keyframes blink { 50% { opacity: .35; } }
.feed .fb { border-left: 4px solid var(--accent); background: var(--card); border-radius: 10px; padding: 10px 12px; margin-bottom: 8px; }
.fb.suggestion { border-color: var(--ok); }
.fb.alert { border-color: var(--danger); }
.fb.answer { border-color: var(--warn); }
.fb-head { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); }
.fb-head b { color: var(--fg); }
.fb-body { white-space: pre-wrap; margin-top: 4px; }
.captions .cap { padding: 8px 4px; border-bottom: 1px solid var(--line); }
.cap .who { font-weight: 600; color: var(--accent); margin-right: 8px; }
.cap .ts { color: var(--muted); font-size: 12px; }
.cap p { margin: 2px 0 0; }
.spk { border-top: 1px solid var(--line); padding: 12px 0; }
.spk-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.spk-head input { width: auto; margin: 0; }
.sample { margin: 6px 0; }
.sample audio { width: 100%; height: 36px; }
.sample p { margin: 2px 0; font-size: 14px; color: var(--muted); }
.row { display: flex; gap: 8px; align-items: center; }
.row input { margin: 0; }
.terms { padding-left: 18px; color: var(--muted); }
.row.between { justify-content: space-between; margin-top: 12px; }
.login { max-width: 380px; margin: 12vh auto 0; }
.error { color: var(--danger); font-size: 14px; min-height: 1.4em; }