:root{--bg-canvas: #F8FAFC;--bg-surface: #FFFFFF;--bg-glass: rgba(255, 255, 255, .75);--border-soft: rgba(226, 232, 240, .9);--cyan-primary: #00C2E0;--pink-soft: #FF6B8B;--mint-green: #20C997;--yellow-warm: #FFC107;--coral-red: #FF5252;--navy-blue: #3B82F6;--orange-soft: #FB8C00;--violet-soft: #9C27B0;--thumb-gray: #64748B;--text-primary: #0F172A;--text-secondary: #475569;--text-muted: #94A3B8;--shadow-sm: 0 4px 16px rgba(0, 0, 0, .05);--shadow-md: 0 8px 32px rgba(0, 194, 224, .12);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .08);--font-heading: "Outfit", system-ui, -apple-system, sans-serif;--font-body: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", monospace}*{box-sizing:border-box;margin:0;padding:0;user-select:none;-webkit-user-select:none}body,html{width:100%;height:100%;overflow:hidden;background-color:var(--bg-canvas);color:var(--text-primary);font-family:var(--font-body)}#game-canvas{position:absolute;top:0;left:0;width:100%;height:100%;display:block;z-index:1}.hud-container{position:absolute;top:0;left:0;width:100%;pointer-events:none;z-index:10;padding:16px 28px}.hud-header{display:flex;justify-content:space-between;align-items:center;max-width:1400px;margin:0 auto}.hud-left,.hud-center,.hud-right{display:flex;align-items:center;gap:12px;pointer-events:auto}.btn-glass{display:flex;align-items:center;gap:10px;background:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-soft);border-radius:14px;padding:8px 16px;cursor:pointer;box-shadow:var(--shadow-sm);transition:all .2s cubic-bezier(.4,0,.2,1)}.btn-glass:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--cyan-primary)}.song-meta{display:flex;flex-direction:column;text-align:left}.song-title{font-family:var(--font-heading);font-weight:700;font-size:15px;color:var(--text-primary)}.song-sub{font-size:11px;color:var(--text-muted);font-weight:600}.phase-badge{padding:6px 12px;border-radius:20px;font-size:12px;font-weight:700;font-family:var(--font-heading);text-transform:uppercase;letter-spacing:.5px}.phase-1{background:#e0f2fe;color:#0284c7}.phase-2{background:#ecfdf5;color:#059669}.phase-3{background:#fef3c7;color:#d97706}.stat-pill{display:flex;flex-direction:column;align-items:center;background:var(--bg-glass);backdrop-filter:blur(12px);border:1px solid var(--border-soft);border-radius:12px;padding:6px 16px;min-width:80px;box-shadow:var(--shadow-sm)}.stat-label{font-size:10px;font-weight:700;color:var(--text-muted);letter-spacing:.6px}.stat-val{font-family:var(--font-heading);font-size:18px;font-weight:800;color:var(--text-primary)}.stat-sub{font-size:10px;color:var(--text-muted)}.val-high{color:var(--mint-green)}.val-cyan{color:var(--cyan-primary)}.fade-selector{display:flex;background:#f1f5f9d9;border-radius:12px;padding:3px;border:1px solid var(--border-soft)}.fade-btn{background:transparent;border:none;padding:6px 12px;border-radius:9px;font-family:var(--font-heading);font-weight:700;font-size:12px;color:var(--text-secondary);cursor:pointer;transition:all .15s ease}.fade-btn.active{background:#fff;color:var(--cyan-primary);box-shadow:var(--shadow-sm)}.hygiene-pill{display:flex;align-items:center;gap:6px;background:var(--bg-glass);backdrop-filter:blur(12px);border:1px solid var(--border-soft);border-radius:14px;padding:8px 14px;box-shadow:var(--shadow-sm)}.hygiene-val{font-family:var(--font-mono);font-weight:700;font-size:13px;color:var(--text-primary)}.modal-backdrop{position:fixed;top:0;left:0;width:100%;height:100%;background:#0f172a40;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:100;opacity:1;transition:opacity .25s ease}.modal-backdrop.hidden{opacity:0;pointer-events:none;display:none!important}.modal-card{background:#fff;border-radius:24px;padding:32px;max-width:900px;width:90%;box-shadow:var(--shadow-lg);border:1px solid var(--border-soft);max-height:85vh;display:flex;flex-direction:column}.modal-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px}.logo-title{font-family:var(--font-heading);font-size:28px;font-weight:900;letter-spacing:1.5px;background:linear-gradient(135deg,var(--cyan-primary),#3B82F6);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.logo-sub{font-size:13px;color:var(--text-muted);font-weight:600;margin-top:2px}.btn-close{background:#f1f5f9;border:none;width:36px;height:36px;border-radius:12px;cursor:pointer;font-size:16px;color:var(--text-secondary);font-weight:700;transition:all .15s ease}.btn-close:hover{background:#e2e8f0;color:var(--text-primary)}.track-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;overflow-y:auto;padding-right:6px}.track-card{background:var(--bg-canvas);border:1px solid var(--border-soft);border-radius:18px;padding:18px;display:flex;flex-direction:column;justify-content:space-between;transition:all .2s cubic-bezier(.4,0,.2,1)}.track-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--cyan-primary)}.card-badge{font-size:10px;font-weight:800;text-transform:uppercase;color:var(--cyan-primary);letter-spacing:.5px;margin-bottom:8px}.track-title{font-family:var(--font-heading);font-size:17px;font-weight:800;color:var(--text-primary);margin-bottom:4px}.track-artist{font-size:12px;color:var(--text-secondary);font-weight:600;margin-bottom:8px}.track-desc{font-size:11px;color:var(--text-muted);line-height:1.4;margin-bottom:14px}.card-footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(226,232,240,.6);padding-top:12px}.bpm-tag{font-family:var(--font-mono);font-size:11px;font-weight:700;color:var(--text-secondary)}.btn-play-track{background:var(--cyan-primary);color:#fff;border:none;padding:6px 14px;border-radius:10px;font-family:var(--font-heading);font-weight:800;font-size:12px;cursor:pointer;box-shadow:0 4px 12px #00c2e04d;transition:all .15s ease}.btn-play-track:hover{transform:scale(1.05);box-shadow:0 6px 18px #00c2e073}.pause-card{text-align:center;max-width:650px;align-items:center}.pause-icon{font-size:48px;margin-bottom:12px}.pause-title{font-family:var(--font-heading);font-size:26px;font-weight:900;color:var(--text-primary);margin-bottom:8px}.pause-sub{font-size:14px;color:var(--text-secondary);max-width:480px;margin-bottom:24px;line-height:1.5}.exercise-boxes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:24px;width:100%}.ex-box{background:var(--bg-canvas);border:1px solid var(--border-soft);border-radius:16px;padding:16px;display:flex;flex-direction:column;align-items:center;gap:8px}.ex-emoji{font-size:24px}.ex-box h4{font-family:var(--font-heading);font-size:13px;font-weight:800;color:var(--text-primary)}.ex-box p{font-size:11px;color:var(--text-secondary);line-height:1.35}.pause-timer-ring{font-size:14px;color:var(--text-secondary);margin-bottom:20px}.pause-timer-ring strong{font-family:var(--font-mono);font-size:18px;color:var(--cyan-primary)}.btn-primary-glow{background:linear-gradient(135deg,var(--cyan-primary),#3B82F6);color:#fff;border:none;padding:12px 28px;border-radius:14px;font-family:var(--font-heading);font-weight:800;font-size:15px;cursor:pointer;box-shadow:0 8px 24px #00c2e059;transition:all .2s ease}.btn-primary-glow:hover{transform:translateY(-2px);box-shadow:0 12px 32px #00c2e080}.debug-tester{position:fixed;bottom:16px;right:16px;width:340px;background:#0f172ae0;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.15);border-radius:18px;padding:14px 16px;color:#f8fafc;font-family:var(--font-mono);font-size:11px;z-index:999;box-shadow:0 12px 40px #00000059;user-select:text;-webkit-user-select:text}.dbg-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:8px;margin-bottom:10px}.dbg-title{font-family:var(--font-heading);font-weight:800;font-size:12px;color:var(--cyan-primary);letter-spacing:.5px}.dbg-controls{display:flex;gap:6px}.dbg-btn{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:6px;padding:3px 8px;font-size:10px;cursor:pointer;font-family:var(--font-mono);transition:all .15s ease}.dbg-btn-active{background:#10b981;border-color:#10b981;color:#fff;font-weight:700}.dbg-btn-icon{background:transparent;border:none;color:#94a3b8;cursor:pointer;font-size:12px;padding:2px 4px}.dbg-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 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5px;border-radius:4px;font-weight:700;font-size:9px}.splash-card{max-width:820px;text-align:center;align-items:center;padding:38px 42px}.splash-hero{margin-bottom:24px}.hero-badge{display:inline-block;background:#e0f2fe;color:#0284c7;font-family:var(--font-heading);font-weight:800;font-size:11px;letter-spacing:1px;padding:4px 14px;border-radius:20px;margin-bottom:12px}.splash-logo{font-family:var(--font-heading);font-size:42px;font-weight:900;letter-spacing:2px;background:linear-gradient(135deg,var(--cyan-primary),#3B82F6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:6px}.splash-tagline{font-family:var(--font-heading);font-size:18px;font-weight:700;color:var(--text-primary);margin-bottom:8px}.splash-subtext{font-size:13px;color:var(--text-secondary);max-width:580px;margin:0 auto;line-height:1.5}.splash-options{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;width:100%;margin-bottom:24px}.splash-card-opt{background:var(--bg-canvas);border:2px solid var(--border-soft);border-radius:20px;padding:20px 16px;cursor:pointer;display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;transition:all .2s cubic-bezier(.4,0,.2,1)}.splash-card-opt:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--cyan-primary)}.opt-tutorial{border-color:#ff6b8b66}.opt-tutorial:hover{border-color:var(--pink-soft)}.opt-icon{font-size:36px}.opt-content h3{font-family:var(--font-heading);font-size:15px;font-weight:800;color:var(--text-primary);margin-bottom:6px}.opt-content p{font-size:11px;color:var(--text-secondary);line-height:1.4;margin-bottom:12px}.opt-badge{display:inline-block;background:#fff1f2;color:#e11d48;font-size:10px;font-weight:800;padding:3px 10px;border-radius:12px}.badge-green{background:#ecfdf5;color:#059669}.badge-blue{background:#eff6ff;color:#2563eb}.splash-footer{font-size:12px;color:var(--text-muted)}.tut-card{max-width:600px;text-align:center}.tut-progress{font-family:var(--font-heading);font-size:13px;font-weight:800;color:var(--cyan-primary);text-transform:uppercase;letter-spacing:.5px}.tut-title{font-family:var(--font-heading);font-size:22px;font-weight:900;color:var(--text-primary);margin-bottom:10px}.tut-inst{font-size:14px;color:var(--text-secondary);line-height:1.5;margin-bottom:24px}.tut-key-display{display:flex;flex-direction:column;align-items:center;gap:12px;margin-bottom:20px}.tut-target-key{width:90px;height:90px;border:4px solid var(--cyan-primary);border-radius:24px;display:flex;justify-content:center;align-items:center;font-family:var(--font-heading);font-size:38px;font-weight:900;background:#fff;box-shadow:0 10px 30px #00000014;transition:all .2s cubic-bezier(.4,0,.2,1)}.tut-key-success{transform:scale(1.15);box-shadow:0 0 40px #10b981}.tut-finger-badge{color:#fff;font-family:var(--font-heading);font-weight:800;font-size:12px;padding:6px 16px;border-radius:20px}.tut-hint{font-size:13px;color:var(--text-muted);font-weight:600}.tut-trophy{font-size:54px;margin-bottom:12px}.settings-card{max-width:720px;width:95%}.settings-title{font-family:var(--font-heading);font-size:24px;font-weight:900;color:var(--text-primary);margin-bottom:4px}.settings-sub{font-size:13px;color:var(--text-secondary)}.settings-body{display:flex;flex-direction:column;gap:20px;margin-bottom:24px;overflow-y:auto;max-height:60vh;padding-right:6px}.setting-group{display:flex;flex-direction:column;gap:8px}.setting-group-title{font-family:var(--font-heading);font-size:14px;font-weight:800;color:var(--text-primary)}.preset-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.preset-btn{background:var(--bg-canvas);border:2px solid var(--border-soft);border-radius:16px;padding:14px 12px;cursor:pointer;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;transition:all .2s ease}.preset-btn:hover{transform:translateY(-2px);border-color:var(--cyan-primary)}.preset-btn.active{background:#fff;border-color:var(--cyan-primary);box-shadow:0 4px 16px #00c2e033}.preset-icon{font-size:22px}.preset-name{font-family:var(--font-heading);font-size:13px;font-weight:800;color:var(--text-primary)}.preset-desc{font-size:10px;color:var(--text-muted);line-height:1.3}.slider-row{display:flex;align-items:center;gap:14px}.slider-row input[type=range]{flex:1;accent-color:var(--cyan-primary);height:6px;border-radius:4px;cursor:pointer}.slider-val{font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--cyan-primary);min-width:90px}.slider-hint{font-size:11px;color:var(--text-muted)}.setting-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.setting-grid-2 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#00c2e0cc;transition:width .1s linear}.results-card{max-width:680px;width:92%;text-align:center;align-items:center;padding:32px 36px}.results-header{display:flex;align-items:center;gap:20px;margin-bottom:24px;width:100%;text-align:left}.grade-badge{width:80px;height:80px;border-radius:24px;border:4px solid var(--cyan-primary);display:flex;justify-content:center;align-items:center;font-family:var(--font-heading);font-size:46px;font-weight:900;background:#fff;box-shadow:0 8px 24px #00000014;flex-shrink:0}.results-titles{display:flex;flex-direction:column}.results-song{font-family:var(--font-heading);font-size:24px;font-weight:900;color:var(--text-primary)}.results-artist{font-size:13px;color:var(--text-muted);font-weight:600}.results-praise{font-size:14px;font-weight:800;font-family:var(--font-heading);margin-top:4px}.results-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;width:100%;margin-bottom:20px}.r-stat-box{background:var(--bg-canvas);border:1px solid 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16px;width:100%;margin-bottom:24px;text-align:left}.d-icon{font-size:24px}.d-text{font-size:12px;color:#166534;line-height:1.4}.results-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;width:100%}.diff-quick-select{display:flex;align-items:center;gap:6px;background:var(--bg-canvas);border:1px solid var(--border-soft);border-radius:12px;padding:4px 10px}.diff-q-label{font-size:11px;font-weight:700;color:var(--text-muted)}.btn-diff-mini{background:transparent;border:none;font-size:11px;font-weight:700;cursor:pointer;padding:4px 8px;border-radius:6px;color:var(--text-secondary);transition:all .15s ease}.btn-diff-mini:hover{background:#fff;color:var(--cyan-primary);box-shadow:0 2px 8px #0000000d}.card-badge-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;width:100%}.card-record-badge{font-size:11px;font-weight:800;padding:3px 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infinite ease-in-out}@keyframes pulsePill{0%,to{transform:scale(1)}50%{transform:scale(1.04)}}.pause-ingame-card{max-width:480px;width:90%;text-align:center;padding:32px 28px}.pause-header{margin-bottom:20px}.pause-badge{font-size:11px;font-weight:800;letter-spacing:1px;color:var(--cyan-primary);text-transform:uppercase;margin-bottom:6px}.pause-track-title{font-family:var(--font-heading);font-size:22px;font-weight:900;color:var(--text-primary);margin-bottom:2px}.pause-track-sub{font-size:12px;color:var(--text-muted);font-weight:600}.pause-live-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;background:var(--bg-canvas);border:1px solid var(--border-soft);border-radius:14px;padding:12px 8px;margin-bottom:24px}.p-stat{display:flex;flex-direction:column}.p-lbl{font-size:9px;font-weight:800;color:var(--text-muted);letter-spacing:.5px}.p-val{font-family:var(--font-mono);font-size:16px;font-weight:700;color:var(--text-primary);margin-top:2px}.pause-actions{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}.btn-wide{width:100%;padding:12px 18px;font-size:14px;font-weight:700}.pause-tip{border-top:1px solid var(--border-soft);padding-top:12px;font-size:11px;color:var(--text-muted);line-height:1.4}.splash-three-modes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}@media(max-width:900px){.splash-three-modes{grid-template-columns:1fr}}.opt-progression:hover{border-color:#10b981;box-shadow:0 10px 24px #10b98126}.opt-zen:hover{border-color:#0d9488;box-shadow:0 10px 24px #0d948826}.badge-zen{background:#0d94881f;color:#0d9488;border:1px solid rgba(13,148,136,.25)}.dbg-header-left{display:flex;align-items:center;gap:8px}.dbg-mode-tag{font-size:10px;font-weight:800;padding:2px 6px;border-radius:6px;letter-spacing:.5px}.tag-rhythm{background:#00c2e033;color:var(--cyan-primary);border:1px solid rgba(0,194,224,.4)}.tag-progression{background:#10b98133;color:#10b981;border:1px solid rgba(16,185,129,.4)}.tag-zen{background:#0d948833;color:#0d9488;border:1px solid rgba(13,148,136,.4)}.progression-levels-container{display:flex;flex-direction:column;gap:22px;max-height:68vh;overflow-y:auto;padding-right:8px}.prog-level-group{background:#f8fafcd9;border:1px solid var(--border-soft);border-radius:16px;padding:16px}.prog-level-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;border-bottom:1px solid var(--border-soft);padding-bottom:8px}.prog-level-header h3{font-size:16px;font-weight:800;color:var(--text-primary)}.prog-level-count{font-size:11px;font-weight:600;color:var(--text-muted);background:var(--bg-surface);padding:3px 8px;border-radius:8px;border:1px solid var(--border-soft)}.prog-stage-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}.prog-stage-card{background:var(--bg-surface);border:1px solid var(--border-soft);border-radius:14px;padding:14px;display:flex;flex-direction:column;justify-content:space-between;gap:8px;transition:transform .15s ease,box-shadow .15s ease}.prog-stage-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:#10b981}.st-top{display:flex;justify-content:space-between;align-items:center}.st-num{font-size:10px;font-weight:800;color:var(--text-muted)}.st-keys{display:flex;gap:4px}.st-key-badge{font-family:var(--font-mono);font-size:10px;font-weight:800;background:#00c2e01a;color:var(--cyan-primary);border:1px solid rgba(0,194,224,.3);padding:1px 5px;border-radius:4px}.st-title{font-size:14px;font-weight:800;color:var(--text-primary)}.st-desc{font-size:11px;color:var(--text-secondary);line-height:1.4;flex:1}.btn-start-stage{background:#10b981;color:#fff;border:none;border-radius:10px;padding:8px 12px;font-size:11px;font-weight:800;cursor:pointer;transition:background .15s ease;margin-top:4px}.btn-start-stage:hover{background:#059669}.zen-text-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(360px,1fr));gap:16px;max-height:68vh;overflow-y:auto;padding-right:8px}.zen-card{background:var(--bg-surface);border:1px solid var(--border-soft);border-radius:16px;padding:18px;display:flex;flex-direction:column;justify-content:space-between;gap:8px;transition:transform .15s ease,box-shadow .15s ease}.zen-card:hover{transform:translateY(-2px);box-shadow:0 10px 24px #0d94881f}.zen-card-header{display:flex;justify-content:space-between;align-items:center}.zen-cat-badge{font-size:10px;font-weight:800;color:#0d9488;text-transform:uppercase;letter-spacing:.5px}.zen-words-count{font-size:10px;font-weight:600;color:var(--text-muted)}.zen-title{font-size:16px;font-weight:800;color:var(--text-primary)}.zen-author{font-size:12px;font-style:italic;color:var(--text-secondary)}.zen-preview{font-size:12px;color:var(--text-secondary);line-height:1.5;background:#f8fafcb3;padding:10px;border-radius:8px;border:1px solid var(--border-soft)}.btn-start-zen{color:#fff;border:none;border-radius:10px;padding:10px 14px;font-size:12px;font-weight:800;cursor:pointer;transition:opacity .15s ease;width:100%}.btn-start-zen:hover{opacity:.9}