:root{--bg:#f6f4ef;--panel:#fff;--ink:#1d1b18;--muted:#6f6a62;--line:#e2ddd3;--accent:#c2410c;--accent-ink:#fff;--good:#15803d;--good-bg:#16a34a38;--bad:#b91c1c;--learning:#f59e0b;color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--bg);grid-template-rows:auto 1fr auto;height:100vh;display:grid;overflow:hidden}button{font:inherit;border:1px solid var(--line);background:var(--panel);color:var(--ink);cursor:pointer;border-radius:8px;padding:6px 12px}button:hover:not(:disabled){border-color:var(--muted)}button:disabled{opacity:.5;cursor:default}button.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}button.link{color:var(--accent);background:0 0;border:none;padding:2px 0}button.danger{color:var(--bad)}select{font:inherit;border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:5px 8px}.muted{color:var(--muted)}.small{font-size:12px}.topbar{background:var(--panel);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:12px 28px;padding:10px 18px;display:flex}.title{flex-direction:column;min-width:200px;display:flex}.title .muted{font-size:13px}.song-picker{cursor:pointer;background:0 0;border-color:#0000;margin-left:-6px;padding:3px 6px;font-size:15px;font-weight:700}.song-picker:hover{border-color:var(--line)}.transport{gap:6px;display:flex}.transport #play{min-width:110px}.speed{align-items:center;gap:10px;display:flex}.speed label{white-space:nowrap;font-size:13px}.speed output{min-width:3ch;font-weight:600;display:inline-block}.speed input{width:140px;accent-color:var(--accent)}.presets{gap:4px;display:flex}.presets button{padding:3px 7px;font-size:12px}.toggles{flex-wrap:wrap;gap:14px;font-size:13px;display:flex}.toggles input{accent-color:var(--accent)}.layout{grid-template-columns:290px 1fr;min-height:0;display:grid}.sidebar{border-right:1px solid var(--line);background:var(--panel);padding:14px 16px;overflow-y:auto}.summary{align-items:center;gap:12px;margin-bottom:12px;display:flex}.ring{--pct:0;background:conic-gradient(var(--good) calc(var(--pct) * 1%), var(--line) 0);border-radius:50%;flex:none;place-items:center;width:58px;height:58px;display:grid}.ring span{background:var(--panel);border-radius:50%;place-items:center;width:44px;height:44px;font-size:13px;font-weight:700;display:grid}.current{background:var(--bg);border-radius:8px;flex-wrap:wrap;align-items:baseline;gap:8px;margin-bottom:10px;padding:8px 10px;display:flex}.section{margin:12px 0}.section-head{justify-content:space-between;align-items:baseline;margin-bottom:6px;font-size:14px;font-weight:600;display:flex}.chips{grid-template-columns:repeat(4,1fr);gap:5px;display:grid}.chip{font-variant-numeric:tabular-nums;border-width:2px;padding:5px 0;font-size:12px}.chip.learning{border-color:var(--learning)}.chip.done{border-color:var(--good);background:var(--good-bg)}.chip.skipped{color:var(--muted);background:var(--bg);border-style:dashed;text-decoration:line-through}#phrases.marking .chip{cursor:copy}#mark-mode{width:100%;margin-bottom:4px}.chip.active{background:var(--ink);color:var(--panel);border-color:var(--ink)}.hint{margin-top:16px}.score-wrap{background:#fff;position:relative;overflow-y:auto}.score-inner{max-width:1100px;margin:0 auto;padding:8px 0 60px;position:relative}#alphatab{position:relative}.at-cursor-bar{background:#c2410c14}.at-cursor-beat{background:#c2410cbf;width:3px}.at-highlight *{fill:var(--accent);stroke:var(--accent)}.at-selection div{background:#2563eb1f}.ladder{background:var(--panel);border-top:1px solid var(--line);grid-template-columns:260px auto 1fr;align-items:center;gap:18px;padding:10px 18px;display:grid}.ladder-status{gap:6px;font-size:14px;display:grid}.ladder-track{background:var(--bg);border:1px solid var(--line);border-radius:4px;height:8px;overflow:hidden}.ladder-track div{background:var(--good);width:0;height:100%;transition:width .2s}.ladder-controls{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.ladder-controls #got-it{min-width:190px}.feedback{font-size:14px}.feedback.good{color:var(--good);font-weight:600}@media (width<=900px){.layout{grid-template-rows:auto 1fr;grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--line);max-height:30vh}.ladder{grid-template-columns:1fr}}