:root { --bg:#fafafa; --fg:#1b1b1b; --muted:#666; --card:#fff; --line:#e3e3e3; --accent:#2b6cb0; --star:#c48a00; }
@media (prefers-color-scheme: dark) { :root { --bg:#141414; --fg:#eaeaea; --muted:#9a9a9a; --card:#1e1e1e; --line:#333; --accent:#6ea8ff; --star:#f0b429; } }
* { box-sizing: border-box; }
body { margin:0; font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; background:var(--bg); color:var(--fg); }
header, main, footer { max-width: 900px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 24px; }
h1 { margin: 0 0 4px; font-size: 1.6rem; }
.sub { color: var(--muted); margin: 0 0 12px; }
nav { display:flex; gap:8px; border-bottom:1px solid var(--line); margin-bottom:16px; }
.tab { background:none; border:none; border-bottom:2px solid transparent; padding:8px 12px; font:inherit; color:var(--muted); cursor:pointer; text-decoration:none; }
.tab.active { color:var(--fg); border-bottom-color:var(--accent); }
.tab.link { margin-left:auto; }
.card { background:var(--card); border:1px solid var(--line); border-radius:10px; padding:16px; margin-bottom:16px; }
.batch h2 { margin:0 0 2px; font-size:1.15rem; }
.batch .meta { color:var(--muted); font-size:.9rem; margin-bottom:10px; }
.clip { display:grid; grid-template-columns: 1fr auto; gap:4px 12px; align-items:center; padding:8px 0; border-top:1px solid var(--line); }
.clip:first-of-type { border-top:none; }
.clip .title { font-weight:600; }
.clip .title .star { color:var(--star); }
.clip .info { color:var(--muted); font-size:.85rem; grid-column: 1 / -1; }
.clip midi-player { width:100%; grid-column: 1 / -1; }
.clip a { font-size:.85rem; color:var(--accent); }
.label { display:inline-block; font-size:.75rem; padding:1px 8px; border-radius:999px; border:1px solid var(--line); color:var(--muted); margin-left:6px; vertical-align:middle; }
label { display:inline-block; margin:4px 12px 4px 0; }
input, select { font:inherit; padding:4px 6px; border:1px solid var(--line); border-radius:6px; background:var(--bg); color:var(--fg); }
button { font:inherit; padding:8px 14px; border-radius:8px; border:1px solid var(--line); background:var(--card); color:var(--fg); cursor:pointer; }
button:hover { border-color:var(--accent); }
button.danger { color:#c0392b; }
.ab { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.side h3 { margin:0 0 6px; }
.side midi-player { width:100%; }
.reveal { min-height:1.4em; color:var(--muted); font-size:.85rem; margin-top:4px; }
.choices { display:flex; gap:8px; justify-content:center; margin:14px 0 6px; flex-wrap:wrap; }
.pair-head { display:flex; justify-content:space-between; color:var(--muted); font-size:.9rem; margin-bottom:8px; }
.hint { color:var(--muted); font-size:.85rem; }
footer { color:var(--muted); font-size:.85rem; padding:24px 16px; }
@media (max-width:600px) { .ab { grid-template-columns:1fr; } }
a.button { display:inline-block; padding:8px 14px; border-radius:8px; border:1px solid var(--accent); background:var(--accent); color:#fff; text-decoration:none; }
a.button.disabled { pointer-events:none; opacity:.45; }
.steps { padding-left: 20px; }
.steps li { margin: 8px 0; }
.steps .hint { display:block; margin-top:4px; }
.done { text-align:center; font-weight:600; }
button:disabled { opacity:.45; cursor:default; }
label.branch { margin-left: 12px; align-self: center; color: var(--muted); font-size: .9rem; }
.form label { display: block; margin: 8px 0; }
.prefix { color: var(--muted); margin-right: 2px; }
.knobs .knob { display: grid; grid-template-columns: 210px 160px 50px 1fr; align-items: center; gap: 8px; margin: 4px 0; }
.knobs .kv { font-variant-numeric: tabular-nums; color: var(--muted); }
label.inline { display: inline-block; margin: 0 10px 0 6px; }
@media (max-width:600px) { .knobs .knob { grid-template-columns: 1fr 1fr; } }