:root {
  --bg: #f4f6f9; --card: #fff; --ink: #1d2733; --muted: #5d6b7a; --line: #d9e0e8;
  --accent: #1f3a5f; --accent-ink: #fff; --rec: #c0392b; --error: #b3261e; --soft: #eaf0f7;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11161c; --card: #1a2129; --ink: #e6ebf0; --muted: #9aa8b6; --line: #2c3540;
          --accent: #7fa7d9; --accent-ink: #0d1520; --rec: #ff6b5b; --error: #ff8a80; --soft: #222c37; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding: max(16px, env(safe-area-inset-top)) 16px 40px; }
#app, .narrow { max-width: 760px; margin: 0 auto; }
.narrow { max-width: 420px; margin-top: 12vh; }
header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
h1 { font-size: 1.4rem; margin: 0; }
h2 { font-size: 1.1rem; margin: 0 0 12px; display: flex; align-items: center; gap: 10px; }
.num { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink); font-size: .85rem; }
.badge { font-size: .8rem; color: var(--muted); border: 1px solid var(--line); border-radius: 99px; padding: 2px 10px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; margin-bottom: 16px; }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: .85rem; }
.error { color: var(--error); }
label { display: block; font-size: .9rem; color: var(--muted); margin-bottom: 10px; }
input, textarea, select { display: block; width: 100%; margin-top: 4px; font: inherit; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
textarea { resize: vertical; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
button, .button { font: inherit; font-size: .95rem; cursor: pointer; border-radius: 10px; padding: 10px 16px;
  border: 1px solid var(--line); background: var(--soft); color: var(--ink); display: inline-block; margin: 0; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
button:disabled { opacity: .45; cursor: default; }
.big { flex: 1; text-align: center; padding: 14px; font-size: 1rem; }
.row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.row.small button { font-size: .85rem; padding: 7px 12px; }
#rec-btn.recording { background: var(--rec); border-color: var(--rec); color: #fff; }
audio { width: 100%; margin: 6px 0; }
details { margin: 10px 0 14px; } summary { cursor: pointer; color: var(--muted); font-size: .9rem; }
.bar { height: 8px; background: var(--soft); border-radius: 99px; overflow: hidden; margin-top: 14px; }
.bar span { display: block; height: 100%; width: 5%; background: var(--accent); transition: width .4s; }
.tabs { display: flex; gap: 6px; margin: 16px 0 10px; }
.tab { padding: 6px 14px; font-size: .85rem; }
.tab.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.pv { border: 1px solid var(--line); border-radius: 10px; padding: 4px 18px; margin-bottom: 10px; overflow-x: auto; }
.pv h1 { font-size: 1.25rem; margin: 14px 0 8px; } .pv h2 { font-size: 1.05rem; display: block; margin: 18px 0 6px; }
.pv table { border-collapse: collapse; width: 100%; font-size: .9rem; }
.pv th, .pv td { border: 1px solid var(--line); padding: 6px 8px; text-align: left; vertical-align: top; }
footer { text-align: center; font-size: .8rem; margin-top: 8px; }