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var(--line);border-bottom:0;border-radius:12px 12px 0 0}.staff{width:100%;height:var(--staff-h, 150px);max-height:260px;display:block}.sv-line,.sv-ledger{stroke:#f2eefb80}.sv-line-heavy{stroke:#f2eefbb8}.sv-brace{fill:none;stroke:#f2eefb99;stroke-width:2.4}.sv-bar{stroke:#f2eefb4d}.sv-cursor{stroke:var(--accent);opacity:.85}.sv-clef-glyph,.sv-acc,.sv-ts{fill:var(--text);font-family:Bravura Text,Segoe UI Symbol,Noto Music,Apple Symbols,serif}.sv-ts{font-family:var(--font);font-weight:700}.sv-head{fill:var(--text)}.sv-head-open{fill:none;stroke:var(--text);stroke-width:2.2}.sv-stem,.sv-flag{stroke:var(--text);fill:var(--text)}.sv-flag{stroke-width:0}.sv-dot,.sv-rest{fill:var(--text)}.sv-rest-stroke{stroke:var(--text);stroke-width:2;fill:none}.sv-caption,.sv-finger{fill:var(--muted);font-family:var(--font);font-weight:600}.sv-hand-l{fill:var(--left)}.sv-hand-l.sv-head-open{stroke:var(--left)}.sv-current .sv-head{fill:var(--accent)}.sv-hit .sv-head{fill:var(--good)}.sv-hit .sv-head-open{stroke:var(--good)}.sv-miss .sv-head{fill:var(--bad)}.sv-miss .sv-head-open{stroke:var(--bad)}.sv-dim{opacity:.35}.teach-card,.quiz-card{max-width:760px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px 28px;box-shadow:var(--shadow)}.teach-card p{font-size:1rem}.teach-card p+p{margin-top:10px}.teach-staff{margin-top:14px}.fig{width:100%;max-width:480px;display:block;margin:16px auto 6px}.fig-white{fill:#f2ecdf;stroke:#8d8578}.fig-black{fill:#17131f}.fig-keylabel{fill:#6a6357;font-size:11px;text-anchor:middle;font-family:var(--font);font-weight:600}.fig-note{fill:var(--muted);font-size:11px;text-anchor:middle;font-family:var(--font)}.fig-call{fill:var(--accent);font-size:13px;text-anchor:middle;font-family:var(--font);font-weight:700}.fig-bracket{stroke:var(--muted);fill:none;stroke-width:1.5}.fig-finger{fill:#3b3159;stroke:#52457c}.fig-palm{fill:#2a2340;stroke:#52457c}.fig-fingernum{fill:var(--accent);font-size:13px;text-anchor:middle;font-family:var(--font);font-weight:700}.fig-line{stroke:#f2eefb80}.fig-line-heavy{stroke:#f2eefbcc;stroke-width:2.5;fill:none}.fig-clef{fill:var(--text);text-anchor:middle;font-family:Bravura Text,Segoe UI Symbol,Noto Music,serif}.fig-head{fill:var(--text)}.fig-head-open{fill:none;stroke:var(--text);stroke-width:2.2}.fig-stem{stroke:var(--text);stroke-width:2}.fig-ring{fill:none;stroke:var(--line);stroke-width:1.5}.fig-key-major{fill:var(--text);font-size:15px;text-anchor:middle;font-family:var(--font);font-weight:700}.fig-key-minor{fill:var(--muted);font-size:11px;text-anchor:middle;font-family:var(--font)}.quiz-q{font-size:1.15rem;margin-bottom:16px}.quiz-options{display:grid;gap:9px}.quiz-option{display:flex;align-items:center;gap:11px;text-align:left;background:var(--panel-2);border:1px solid var(--line);color:var(--text);border-radius:11px;padding:13px 15px;cursor:pointer;font-size:.98rem}.quiz-option:hover{border-color:var(--accent)}.quiz-key{width:22px;height:22px;border-radius:6px;background:var(--line);display:grid;place-items:center;font-size:.75rem;font-family:var(--mono)}.quiz-option.is-correct{border-color:var(--good);background:#3ddc971f}.quiz-option.is-wrong{border-color:var(--bad);background:#ff5c7a1f}.quiz-feedback{margin-top:14px;font-size:.94rem;color:var(--muted)}.quiz-feedback.ok{color:var(--good)}.quiz-feedback.no{color:#ffd166}.drill-card{text-align:center;display:flex;flex-direction:column;align-items:center;gap:6px}.drill-prompt{font-size:4.2rem;font-weight:800;letter-spacing:-.03em;line-height:1}.drill-prompt:empty{display:none}.drill-sub{color:var(--muted);font-size:.9rem}.drill-staff{width:min(420px,80vw)}.shake{animation:shake .34s ease}@keyframes shake{20%{transform:translate(-9px)}45%{transform:translate(8px)}70%{transform:translate(-5px)}to{transform:translate(0)}}.ear-card{display:flex;flex-direction:column;align-items:center;gap:14px}.ear-display{font-size:3rem}.ear-echo{font-family:var(--mono);letter-spacing:.35em;color:var(--accent)}.ear-options{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;max-width:680px}.ear-option{background:var(--panel-2);border:1px solid var(--line);color:var(--text);padding:11px 17px;border-radius:11px;cursor:pointer;font-size:.95rem;font-weight:600}.ear-option:hover{border-color:var(--accent)}.ear-option.is-correct{border-color:var(--good);background:#3ddc9724}.ear-option.is-wrong{border-color:var(--bad);background:#ff5c7a24}.ear-feedback{min-height:22px;color:var(--muted)}.ear-feedback.ok{color:var(--good)}.ear-feedback.no{color:#ffd166}.rhythm-wrap{width:100%;max-width:900px;display:flex;flex-direction:column;align-items:center;gap:8px}.rhythm-canvas{width:100%;height:150px;background:#0a0812;border:1px solid var(--line);border-radius:var(--radius)}.rhythm-count{font-family:var(--mono);color:var(--muted)}.rhythm-judge{height:26px;font-weight:700;font-size:1.05rem;transition:opacity .4s ease}.rhythm-judge.ok{color:var(--good)}.rhythm-judge.meh{color:#ffd166}.rhythm-judge.no{color:var(--bad)}.rhythm-judge.fade{opacity:0}.chord-card{text-align:center}.chord-symbol{font-size:4rem;font-weight:800;letter-spacing:-.03em;line-height:1.05}.chord-sub{color:var(--muted)}.chord-staff{width:min(360px,80vw);margin:0 auto}.scale-card{width:100%;max-width:900px;text-align:center}.scale-title{font-size:1.6rem;font-weight:700;margin-bottom:10px}.scale-trail{display:flex;gap:6px;overflow-x:auto;padding:6px 2px;justify-content:flex-start}.scale-pip{flex:0 0 auto;min-width:42px;padding:8px 6px;border-radius:9px;background:var(--panel-2);border:1px solid var(--line);font-size:.82rem;font-weight:600;position:relative}.scale-pip[data-finger]:after{content:attr(data-finger);position:absolute;top:-7px;right:-5px;width:16px;height:16px;border-radius:50%;background:var(--accent-2);font-size:.62rem;display:grid;place-items:center;color:#fff}.scale-pip.is-current{border-color:var(--accent);background:#f5a52429}.scale-pip.is-hit{border-color:var(--good);color:var(--good)}.scale-pip.is-wrong{border-color:var(--bad)}.scale-timer{font-family:var(--mono);color:var(--muted);margin-top:8px}.play-staff{width:100%;max-width:1100px}.play-status{min-height:22px;color:var(--accent);font-weight:600}.play-preview{display:flex;gap:7px}.freeplay{width:100%;max-width:900px;display:flex;flex-direction:column;align-items:center;gap:10px}.freeplay-readout{text-align:center}.fp-chord{font-size:3rem;font-weight:800;letter-spacing:-.03em}.fp-notes{font-family:var(--mono);color:var(--muted);font-size:.9rem}.freeplay-staff{width:min(520px,90vw)}.results{position:relative;overflow:hidden;max-width:620px;margin:40px auto;text-align:center;background:var(--panel);border:1px solid var(--line);border-top:4px solid var(--accent);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow)}.results-stars{font-size:2.4rem;margin-bottom:10px}.results-stars .star{font-size:2.4rem}.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:11px;margin:22px 0}.results .row{margin-top:8px}.confetti{position:absolute;inset:0;pointer-events:none;overflow:hidden}.confetti i{position:absolute;top:-12px;width:8px;height:13px;border-radius:2px;animation:fall linear forwards}@keyframes fall{to{transform:translateY(520px) rotate(560deg);opacity:0}}.toasts{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:9px;z-index:60}.toast{display:flex;align-items:center;gap:10px;background:var(--panel-2);border:1px solid var(--accent);border-radius:12px;padding:12px 16px;box-shadow:var(--shadow);animation:slide-in .28s ease;max-width:340px;font-size:.9rem}.toast-icon{font-size:1.2rem}.toast-out{opacity:0;transform:translate(20px);transition:all .4s ease}@keyframes slide-in{0%{opacity:0;transform:translate(24px)}}.splash{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;overflow-y:auto;padding:24px;background:radial-gradient(900px 500px at 50% 0%,rgba(124,92,255,.2),transparent 65%),#08060ff7;backdrop-filter:blur(6px);transition:opacity .4s ease}.splash.is-gone{opacity:0;pointer-events:none}.splash-panel{margin:auto;max-width:560px;text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow)}@media (max-height: 620px){.splash-panel{padding:22px}.splash-mark{font-size:2rem}.splash-list{margin:12px 0;gap:6px}.splash-list li{padding:8px 11px;font-size:.84rem}}.splash-mark{font-size:3rem}.splash-list{list-style:none;padding:0;margin:18px 0;display:flex;flex-direction:column;gap:9px;text-align:left}.splash-list li{background:var(--panel-2);border:1px solid var(--line);border-radius:11px;padding:11px 14px;font-size:.9rem}.splash-note{margin-bottom:18px}@media (max-height: 860px){.app-main.is-session{--highway-h: 168px;--piano-h: 126px}.app-main.is-session .staff{max-height:170px}.app-main.is-session .session-stage{min-height:0}.app-main.is-session .prompt-title{font-size:1.12rem}.app-main.is-session .session{gap:7px}}@media (max-height: 720px){.app-main.is-session{--highway-h: 132px;--piano-h: 104px;padding:8px 16px 6px}.app-main.is-session .staff{max-height:132px}.app-main.is-session .session-sub{display:none}.app-main.is-session .prompt-hint{font-size:.82rem}.app-main.is-session .play-preview{display:none}.app-main.is-session .session{gap:5px}.app-main.is-session .session-footer{padding-bottom:0}}@media (max-height: 600px){.app-main.is-session{--highway-h: 104px;--piano-h: 88px}.app-main.is-session .prompt-bar{display:none}.app-main.is-session .staff{max-height:108px}}@media (max-width: 1080px){.hero{grid-template-columns:1fr}.app-nav span:not(.nav-icon){display:none}.xp,.account-btn-label{display:none}}@media (max-width: 760px){.app-main{padding:18px 14px 44px}.header-right .chip span:last-child{display:none}.drill-prompt,.chord-symbol,.fp-chord{font-size:3rem}.setting{flex-direction:column;align-items:flex-start;gap:10px}}