:root{--bg: #0a0b0d;--panel: #12151a;--panel-2: #191d23;--panel-3: #1f242c;--line: #242a33;--line-soft: #191d24;--text: #e9edf3;--text-dim: #c3cad6;--muted: #8d96a5;--muted-2: #667080;--amber: #ffb648;--amber-2: #f2a53a;--amber-soft: rgba(255, 182, 72, .14);--brand: #169bf3;--brand-2: #38b6ff;--green: #4ade9c;--red: #ff6f6f;--violet: #a78bfa;--tab-line: #2e3540;--tab-guide: #1d222a;--tab-bar: #46505f;--chord-grid: #2b323c;--chord-nut: #6b7686;--sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;--radius: 16px}*{box-sizing:border-box}html{min-height:100%;color-scheme:dark}body{margin:0;min-height:100%;background:radial-gradient(1000px 520px at 50% -180px,rgba(255,182,72,.1),transparent 70%),radial-gradient(800px 420px at 100% -40px,rgba(122,142,255,.05),transparent 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select:focus{border-color:#ffb6486b}.preview-line{margin-top:12px;font-size:12.5px;color:var(--text-dim);min-height:1.4em}.preview-line strong{color:var(--amber)}.muted{color:var(--muted-2)}.error-text{color:#ff9d9d}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.dialog-actions .btn:first-child{margin-right:auto}.summary{text-align:center;width:min(460px,100%)}.summary h2{margin:6px 0 16px;font-size:34px;letter-spacing:-.035em;color:var(--amber)}.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.summary-grid>div{padding:12px 8px;border-radius:12px;background:#ffffff08;border:1px solid var(--line-soft);display:flex;flex-direction:column;gap:2px}.summary-grid span{font-size:22px;font-weight:700}.summary-grid small{font-size:11px;color:var(--muted)}.summary-note{margin:16px 0 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#10131a;transform:translateY(-50%);pointer-events:none;opacity:.55;transition:opacity .15s ease,transform .15s ease}.progress:hover .progress-thumb,.progress.is-scrubbing .progress-thumb{opacity:1;transform:translateY(-50%) scale(1.15)}.hand-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;display:flex;align-items:center;justify-content:center;padding:24px;background:#06080cbd}.hand-modal{width:100%;max-width:560px;padding:18px 20px 16px;border:1px solid rgba(255,255,255,.09);border-radius:16px;background:#12161e;box-shadow:0 24px 60px #0000008c}.hand-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.hand-title{font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--text-dim, #8b97a8)}.hand-now{margin:4px 0 0;font-size:13px;font-weight:600;color:#e8eef8}.hand-close{border:1px solid rgba(255,255,255,.12);border-radius:8px;background:transparent;color:var(--text-dim, #8b97a8);font-size:12px;line-height:1;padding:7px 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