:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #111111);
  --hint: var(--tg-theme-hint-color, #8a8a8e);
  --link: var(--tg-theme-link-color, #2481cc);
  --btn: var(--tg-theme-button-color, #2481cc);
  --btn-text: var(--tg-theme-button-text-color, #ffffff);
  --bg2: var(--tg-theme-secondary-bg-color, #f1f1f4);
  --section: var(--tg-theme-section-bg-color, var(--bg2));
  --danger: var(--tg-theme-destructive-text-color, #d93025);
  --sep: var(--tg-theme-section-separator-color, rgba(127,127,127,.25));
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--tg-theme-bg-color, #17212b);
    --text: var(--tg-theme-text-color, #f5f5f5);
    --hint: var(--tg-theme-hint-color, #708499);
    --bg2: var(--tg-theme-secondary-bg-color, #232e3c);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg2);
  color: var(--text);
  font: 15px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  padding-bottom: 260px; /* room for the sticky player */
  min-height: 100vh;
}
button { font: inherit; }
.muted { color: var(--hint); }
.pad { padding: 16px; }

.top { padding: 12px 14px 6px; background: var(--bg); border-bottom: 1px solid var(--sep); }
.top-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
h1 { font-size: 18px; margin: 0; }
h1 .sub { font-weight: 400; color: var(--hint); font-size: 14px; }
.env { font-size: 12px; color: var(--hint); margin-top: 2px; word-break: break-all; }
.banner {
  margin-top: 8px; padding: 8px 10px; border-radius: 8px;
  background: rgba(255, 170, 0, .18); color: var(--text); font-size: 13px;
}
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 10px;
  background: var(--btn); color: var(--btn-text); font-size: 12px; white-space: nowrap;
}

.tracks { padding: 8px 10px; display: flex; flex-direction: column; gap: 10px; }
.card { background: var(--section); border-radius: 12px; padding: 12px; background: var(--bg); }
.card.active { outline: 2px solid var(--btn); }
.card-title { font-weight: 600; word-break: break-word; }
.card-meta { font-size: 13px; color: var(--hint); margin-top: 2px; }
.card-why { font-size: 13px; margin-top: 4px; font-style: italic; color: var(--hint); }
.opts { margin-top: 10px; display: flex; flex-direction: column; gap: 8px; }
.opt { display: flex; gap: 8px; align-items: stretch; }
.opt .btn { flex: 1 1 auto; }
.opt .btn.send { flex: 0 0 auto; }
.opt-none { font-size: 13px; color: var(--hint); }

.btn {
  min-height: 44px; padding: 8px 12px; border: 0; border-radius: 10px;
  background: var(--bg2); color: var(--text); cursor: pointer;
  touch-action: manipulation; user-select: none; -webkit-user-select: none;
}
.btn:active { opacity: .7; }
.btn.primary { background: var(--btn); color: var(--btn-text); }
.btn.small { min-height: 34px; padding: 4px 10px; font-size: 13px; }
.btn.link { background: transparent; color: var(--link); }
.btn[disabled] { opacity: .5; }
.btn .parts { font-size: 12px; opacity: .75; }

.debug { margin: 6px 10px 10px; background: var(--bg); border-radius: 12px; padding: 8px 12px; }
.debug summary { cursor: pointer; font-weight: 600; min-height: 32px; line-height: 32px; }
.debug-actions { display: flex; gap: 8px; margin: 6px 0; }
.debug-head { font-size: 12px; text-transform: uppercase; color: var(--hint); margin-top: 8px; }
.summaries, .events {
  list-style: none; margin: 4px 0; padding: 0;
  font: 11.5px/1.35 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.summaries li { padding: 4px 0; border-bottom: 1px solid var(--sep); word-break: break-word; }
.events li { padding: 2px 0; border-bottom: 1px solid var(--sep); word-break: break-word; }
.events li.err { color: var(--danger); }
.events li.warn { color: #c77700; }

.player {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  background: var(--bg); border-top: 1px solid var(--sep);
  padding: 8px 12px calc(10px + env(safe-area-inset-bottom));
  box-shadow: 0 -4px 16px rgba(0,0,0,.08);
}
.p-title { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.p-meta { font-size: 12px; margin-top: 2px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.p-error { color: var(--danger); font-size: 13px; margin-top: 4px; }
.seek { width: 100%; margin: 10px 0 0; height: 28px; accent-color: var(--btn); }
.p-times { display: flex; justify-content: space-between; font-size: 12px; color: var(--hint); font-variant-numeric: tabular-nums; }
.p-controls { display: flex; justify-content: space-between; gap: 6px; margin-top: 6px; }
.p-controls .ctl { flex: 1 1 0; min-width: 0; padding: 8px 4px; }
.p-controls .play { background: var(--btn); color: var(--btn-text); font-size: 20px; flex: 1.3 1 0; }
.p-rates { display: flex; gap: 6px; margin-top: 6px; }
.p-rates .rate { flex: 1 1 0; min-height: 36px; padding: 4px; font-size: 13px; }
.p-rates .rate.on { background: var(--btn); color: var(--btn-text); }

.sheet {
  position: fixed; inset: 0; z-index: 30; background: rgba(0,0,0,.4);
  display: flex; align-items: flex-end; justify-content: center;
}
.sheet[hidden], .toast[hidden], .player[hidden], .banner[hidden], .p-error[hidden] { display: none; }
.sheet-box {
  width: 100%; max-width: 520px; background: var(--bg); border-radius: 14px 14px 0 0;
  padding: 16px 16px calc(16px + env(safe-area-inset-bottom));
  display: flex; flex-direction: column; gap: 10px;
}
.sheet-text { font-size: 15px; }
.sheet-actions { display: flex; gap: 8px; }
.sheet-actions .btn { flex: 1 1 0; }

.toast {
  position: fixed; left: 12px; right: 12px; top: 12px; z-index: 40;
  background: rgba(30,30,30,.92); color: #fff; padding: 10px 14px; border-radius: 10px;
  font-size: 14px; text-align: center;
}
.toast.err { background: rgba(190,30,30,.95); }