:root {
  --bg: #f5f6f8; --fg: #1c1e21; --muted: #6b7280; --card: #fff; --line: #e3e5e8;
  --accent: #2563eb; --rec: #dc2626;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14161a; --fg: #e8eaed; --muted: #9aa0a6; --card: #1e2126; --line: #2f343b; --accent: #5b8def; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.6 system-ui, "Malgun Gothic", sans-serif; }
[hidden] { display: none !important; }
header { display: flex; align-items: center; gap: 12px; padding: 12px 20px; background: var(--card); border-bottom: 1px solid var(--line); }
main { max-width: 860px; margin: 0 auto; padding: 20px 16px 60px; display: grid; gap: 16px; }
.center { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.login { text-align: center; max-width: 420px; }
.login h1 { margin: 0 0 8px; }
h2 { margin: 0 0 12px; font-size: 17px; }
h3 { margin: 18px 0 6px; font-size: 14px; }
.muted { color: var(--muted); }
.spacer { flex: 1; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.center-row { justify-content: center; margin-top: 14px; }
.folder { font-weight: 600; }
button { font: inherit; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--fg); cursor: pointer; }
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .45; cursor: default; }
@media (pointer: coarse) { button, input { min-height: 44px; } #recBtn, #stopBtn { flex: 1; } }
.filebtn { display: inline-block; padding: 8px 14px; border: 1px dashed var(--line); border-radius: 8px; cursor: pointer; color: var(--muted); font-size: 14px; }
.filebtn:hover { border-color: var(--accent); color: var(--fg); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.big { padding: 12px 24px; font-size: 16px; margin-top: 12px; }
button.ghost { background: transparent; }
input { font: inherit; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); flex: 1; min-width: 160px; }
.recorder { text-align: center; }
.timer { font-size: 44px; font-variant-numeric: tabular-nums; font-weight: 600; }
.recording .timer { color: var(--rec); }
canvas { width: 100%; max-width: 300px; height: 24px; }
audio { width: 100%; margin-top: 14px; }
.msg { min-height: 1.4em; margin: 8px 0 0; color: var(--muted); text-align: center; }
.msg.err { color: var(--rec); }
.steps { list-style: none; padding: 0; margin: 14px 0 0; }
.steps li { padding: 4px 0; color: var(--muted); }
.steps li.run::before { content: "⏳ "; }
.steps li.ok::before { content: "✅ "; }
.steps li.fail::before { content: "❌ "; }
.steps li.run, .steps li.ok { color: var(--fg); }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }
ul { margin: 0; padding-left: 20px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 2px 12px; cursor: text; }
.transcript { display: grid; gap: 10px; max-height: 520px; overflow: auto; }
.line { display: grid; grid-template-columns: 56px 100px 1fr; gap: 8px; }
.line .t { color: var(--muted); font-variant-numeric: tabular-nums; }
.line .s { font-weight: 600; }
select { font: inherit; padding: 6px 8px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); }
.drivelist a { color: var(--accent); font-size: 13px; }
.drivelist { list-style: none; padding: 0; margin: 10px 0 0; }
.drivelist li { display: flex; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--line); }
.drivelist li:last-child { border-bottom: 0; }
.drivelist .nm { flex: 1; word-break: break-all; }
.drivelist .meta { color: var(--muted); font-size: 13px; white-space: nowrap; }
.drivelist .done { color: var(--accent); font-size: 13px; }
dialog { border: 1px solid var(--line); border-radius: 12px; background: var(--card); color: var(--fg); width: min(480px, 92vw); padding: 20px; }
dialog::backdrop { background: rgba(0,0,0,.45); }
.crumbs { color: var(--muted); margin-bottom: 8px; word-break: break-all; }
.crumbs a { color: var(--accent); cursor: pointer; }
.folderlist { list-style: none; padding: 0; margin: 0 0 8px; border: 1px solid var(--line); border-radius: 8px; max-height: 260px; overflow: auto; }
.folderlist li { padding: 8px 12px; cursor: pointer; border-bottom: 1px solid var(--line); }
.folderlist li:last-child { border-bottom: 0; }
.folderlist li:hover { background: var(--bg); }
.folderlist li.empty { color: var(--muted); cursor: default; }