:root{--bg: #0f1115;--panel: #181b22;--line: #2a2f3a;--text: #e8eaf0;--muted: #8b93a5;--accent: #f2b84b;--good: #4cd17a;--bad: #ef6b6b;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.4 system-ui,-apple-system,Segoe UI,sans-serif}button,input,select{font:inherit;color:inherit}button{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 14px;cursor:pointer}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--accent);border-color:var(--accent);color:#1a1405;font-weight:600}button.on{border-color:var(--accent);color:var(--accent)}button.link{background:none;border:0;padding:0;color:var(--accent);text-decoration:underline}button.icon{background:none;border:0;color:var(--muted);font-size:22px;padding:4px 10px}input:not([type]),input[type=password],select{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:8px 10px;min-width:0}input[type=range]{accent-color:var(--accent);width:100%}.muted{color:var(--muted);font-size:14px}.error{color:var(--bad)}.row{display:flex;gap:8px;align-items:center}.row.wrap{flex-wrap:wrap}.row>input:not([type=checkbox]){flex:1}.app{height:100%;display:flex;flex-direction:column;max-width:860px;margin:0 auto}main{flex:1;overflow-y:auto;padding:16px 16px 8px}nav{display:flex;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}nav button{flex:1;border:0;border-radius:0;background:none;padding:14px;color:var(--muted)}nav button.on{color:var(--accent);font-weight:600}.login{max-width:420px;margin:15vh auto 0}.tuner{max-width:480px;margin:0 auto}.tuner .row{justify-content:space-between}.meter{text-align:center;margin:28px 0;padding:24px 16px;background:var(--panel);border-radius:16px;border:2px solid var(--line)}.meter.in-tune{border-color:var(--good)}.meter .note{font-size:84px;font-weight:700;line-height:1}.meter.in-tune .note,.meter.in-tune 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li{display:flex;align-items:center;border-bottom:1px solid var(--line)}.song-list .song{flex:1;display:flex;flex-direction:column;text-align:left;background:none;border:0;border-radius:0;padding:12px 0;min-width:0;opacity:1}.song-list .song span{color:var(--muted);font-size:14px}.song-list .failed .song span{color:var(--bad)}.chord-diagram{text-align:center;padding:6px;border-radius:12px;border:2px solid transparent}.chord-diagram.active{border-color:var(--accent);background:var(--panel)}.chord-diagram .chord-name{font-weight:700;font-size:1.15em}.chord-diagram svg{display:block;width:100%}.chord-diagram .grid{stroke:#5a6172;stroke-width:1}.chord-diagram .nut{fill:var(--text)}.chord-diagram .dot{fill:var(--accent)}.chord-diagram text{text-anchor:middle;font-size:10px;fill:var(--muted)}.chord-diagram .finger{fill:#1a1405;font-weight:700;font-size:9px}.chord-diagram .base-fret{font-size:10px;text-anchor:start}.chord-diagram .no-shape{color:var(--muted);font-size:12px;padding:20px 0}.practice{display:flex;flex-direction:column;gap:8px;height:100%}.practice header{display:flex;gap:10px;align-items:center}.practice header div{display:flex;flex-direction:column;min-width:0}.practice header span{color:var(--muted);font-size:13px}.now{display:flex;justify-content:center;align-items:flex-end;gap:24px;background:var(--panel);border-radius:14px;padding:4px 8px}.now-chord{text-align:center;font-size:20px}.now-chord.upcoming{font-size:15px;opacity:.75}.now-chord small{color:var(--muted);font-size:12px}.now .rest{width:84px;padding:40px 0;color:var(--muted)}.tabs{display:flex;gap:6px}.tabs button{flex:1;font-size:14px}.sheet,.learn{flex:1;min-height:0;overflow-y:auto;padding:4px 2px}.line{padding:6px 8px;border-radius:10px;border-left:3px solid transparent}.line.active{background:var(--panel);border-left-color:var(--accent)}.chips{display:flex;flex-wrap:wrap;gap:4px}.chip{padding:2px 8px;border-radius:6px;font-weight:700;font-size:15px;color:var(--accent);background:none;border-color:var(--line)}.chip.on{background:var(--accent);color:#1a1405;border-color:var(--accent)}.chip.edited{border-style:dashed}.chip.carry{border:1px solid transparent;color:var(--muted)}.words{display:block;width:100%;text-align:left;background:none;border:0;padding:4px 0 0;font-size:18px}.chord-grid{display:flex;flex-wrap:wrap;gap:6px}.drill{margin-top:12px;padding:12px;background:var(--panel);border-radius:14px}.drill h3{margin:0 0 4px}.drill-pair{display:flex;justify-content:center;align-items:center;gap:12px;margin:8px 0}.beats{display:flex;gap:6px}.beats i{width:12px;height:12px;border-radius:50%;background:var(--line)}.beats i.on{background:var(--accent)}.drill label{flex:1;font-size:14px;color:var(--muted)}.controls{padding-top:8px;display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--line)}.controls button,.controls select{padding:6px 10px;font-size:14px}.controls label{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:6px}.controls .label{font-size:14px;color:var(--muted)}.controls p{margin:0}.transport{display:flex;align-items:center;gap:8px;font-variant-numeric:tabular-nums;font-size:14px}.transport .play{min-width:76px;font-size:16px;padding:10px 14px}.mixer{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.mixer label{flex-direction:column;align-items:stretch;gap:0}@media(min-width:720px){.words{font-size:20px}}