*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#1a1a2e;--bg2:#16213e;--bg3:#0f3460;--text:#e0e0e0;--text2:#aaa;--border:#ffffff15;--accent:#e94560;--accent2:#FFD700;--radius:12px;--shadow:0 4px 20px rgba(0,0,0,.3);--card-bg:#16213e;--module-bg:#16213e;--slot-border:2px dashed #ffffff22}.theme-light{--bg:#f0f4f8;--bg2:#fff;--bg3:#e8ecf1;--text:#2d3748;--text2:#718096;--border:#e2e8f0;--accent:#e53e3e;--accent2:#d69e2e;--card-bg:#fff;--module-bg:#fff;--slot-border:2px dashed #cbd5e0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden}.app{max-width:960px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:var(--bg2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header h1{font-size:1.3rem}.tabs{display:flex;gap:8px;align-items:center}.tabs button{padding:8px 16px;border:1px solid var(--border);border-radius:var(--radius);background:transparent;color:var(--text);cursor:pointer;font-size:.9rem;transition:all .2s}.tabs button:hover{background:var(--border)}.tabs button.active{background:var(--accent);border-color:var(--accent);color:#fff}.theme-toggle{font-size:1.2rem;padding:4px 8px!important;border:none!important;background:transparent!important}.btn-primary{padding:10px 24px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);font-size:1rem;cursor:pointer;transition:transform .15s,box-shadow .15s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px #e9456066}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary.btn-lg{padding:16px 40px;font-size:1.2rem}.btn-primary.btn-back{margin:20px auto;display:block}.btn-sm{padding:4px 12px;background:var(--border);color:var(--text);border:1px solid var(--border);border-radius:8px;cursor:pointer;font-size:.8rem;transition:all .15s}.btn-sm:hover{background:var(--bg3)}.btn-sm.btn-accent{background:var(--accent2);color:#333;border-color:var(--accent2)}.btn-sm.btn-danger{background:#f44336;color:#fff;border-color:#f44336}.btn-save{padding:10px 24px;background:#4caf50;color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-size:.9rem;transition:all .15s}.btn-save:hover{transform:translateY(-1px)}.btn-save:disabled{opacity:.4;cursor:not-allowed}.mascot-bubble{position:sticky;top:56px;z-index:99;display:flex;align-items:center;gap:8px;padding:10px 16px;margin:8px 16px;background:var(--accent2);color:#333;border-radius:20px;font-size:.85rem;font-weight:500;animation:mascotIn .3s ease-out;box-shadow:0 2px 12px #ffd7004d}.mascot-avatar{font-size:1.3rem}@keyframes mascotIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.onboard-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:1000}.onboard-card{text-align:center;padding:48px;background:var(--bg2);border-radius:24px;max-width:400px;animation:popIn .4s ease-out}.onboard-icon{font-size:4rem;margin-bottom:16px;animation:bounce 2s infinite}.onboard-card h2{margin-bottom:12px;font-size:1.5rem}.onboard-card p{color:var(--text2);margin-bottom:8px}.onboard-hint{font-size:.85rem;color:var(--accent2)!important}@keyframes popIn{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.module{background:var(--module-bg);border-radius:var(--radius);padding:16px;margin:10px 16px;box-shadow:0 1px 4px #00000014}.module h3{font-size:1rem;margin-bottom:10px;color:var(--accent2);display:flex;align-items:center;gap:8px}.hint{font-size:.7rem;color:var(--text2);font-weight:400}.module-hint{font-size:.72rem;color:var(--text2);text-align:center;margin-top:6px}.mode-selector{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}.mode-btn{padding:7px 12px;border:2px solid transparent;border-radius:var(--radius);background:var(--bg);color:var(--text);cursor:pointer;display:flex;align-items:center;gap:4px;font-size:.82rem;transition:all .2s}.mode-btn:hover{filter:brightness(1.1)}.mode-btn.active{border-width:2px;font-weight:700}.mode-emoji{font-size:1.1rem}.mode-controls{display:flex;align-items:center;gap:14px;margin-bottom:10px;flex-wrap:wrap}.mode-controls label{display:flex;align-items:center;gap:6px;font-size:.82rem}.mode-controls input[type=range]{width:90px;accent-color:var(--accent)}.mode-info{font-size:.78rem;color:var(--text2)}.foundation-bar{display:flex;gap:3px;padding:6px;border-radius:var(--radius)}.foundation-note{flex:1;text-align:center;padding:5px 0;border-radius:5px;font-weight:700;font-size:.8rem;cursor:pointer;transition:transform .15s;color:#333}.foundation-note:hover{transform:scale(1.15);box-shadow:0 2px 8px #0003}.chord-templates{display:flex;gap:5px;margin-bottom:10px;flex-wrap:wrap}.tpl-btn{padding:4px 10px;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text2);cursor:pointer;font-size:.73rem;transition:all .2s}.tpl-btn:hover,.tpl-btn.active{background:#4caf50;color:#fff;border-color:#4caf50}.chord-palette{display:flex;gap:6px;margin-bottom:10px;flex-wrap:wrap}.chord-block{padding:6px 10px;border:2px solid;border-radius:var(--radius);cursor:pointer;text-align:center;min-width:52px;transition:transform .15s,box-shadow .15s;color:#fff;position:relative}.chord-block:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.chord-icon{display:block;font-size:1rem}.chord-roman{display:block;font-size:1rem;font-weight:700}.chord-name{display:block;font-size:.65rem;opacity:.8}.chord-seventh{display:block;font-size:.6rem;opacity:.6;margin-top:2px}.chord-options{margin-bottom:8px}.toggle-label{font-size:.8rem;color:var(--text2);display:flex;align-items:center;gap:6px;cursor:pointer}.toggle-label input{margin:0;accent-color:var(--accent)}.chord-slots{display:grid;grid-template-columns:repeat(8,1fr);gap:4px}.chord-slot{min-height:60px;border:var(--slot-border);border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;position:relative;transition:all .2s;padding:2px}.chord-slot:hover{border-color:var(--accent2)}.chord-slot.active{border-color:var(--accent2);box-shadow:0 0 10px #ffd70033;animation:pulse 2s 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transparent;border-radius:5px;cursor:pointer;font-weight:700;font-size:.75rem;color:#333;transition:all .15s;display:flex;align-items:center;justify-content:center}.note-btn:hover{transform:scale(1.15);box-shadow:0 2px 8px #0003}.note-btn.active{border-color:var(--accent2);box-shadow:0 0 12px #ffd70080;transform:scale(1.2)}.decorator-palette{display:flex;gap:4px}.deco-btn{padding:4px 8px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text2);cursor:pointer;font-size:.72rem;transition:all .15s}.deco-btn:hover{background:var(--bg3)}.deco-btn.active{background:var(--accent2);color:#333;border-color:var(--accent2);font-weight:700}.melody-actions{display:flex;align-items:center;gap:8px;font-size:.8rem;flex-wrap:wrap;margin-bottom:8px}.melody-actions select{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 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#ff0;border-radius:50%}.placed-rest{width:20px;height:20px;border-radius:50%;border:1.5px solid #888;display:flex;align-items:center;justify-content:center;color:#888;font-size:.6rem;margin-top:4px;cursor:pointer}.chord-indicator{position:absolute;bottom:0;left:0;right:0;height:14px;display:flex;align-items:center;padding-left:3px;font-size:.55rem;font-weight:700;border-left:2px solid;background:var(--bg)}@keyframes noteDrop{0%{transform:translateY(-8px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes beatGlow{0%{background:#e945604d}to{background:#e945600d}}.instrument-grid{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}.inst-btn{padding:8px 14px;border:2px solid transparent;border-radius:var(--radius);background:var(--bg);color:var(--text);cursor:pointer;display:flex;align-items:center;gap:5px;font-size:.85rem;transition:all .2s}.inst-btn:hover{filter:brightness(1.2)}.inst-btn.active{border-width:2px;font-weight:700}.inst-emoji{font-size:1.2rem}.inst-controls{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:.8rem;color:var(--text2);padding:6px 0;margin-top:4px}.inst-controls span{font-weight:500}.inst-sub-btn{padding:4px 10px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text2);cursor:pointer;font-size:.73rem;transition:all .15s}.inst-sub-btn:hover{background:var(--bg3)}.inst-sub-btn.active{background:#4caf50;color:#fff;border-color:#4caf50}.action-bar{text-align:center}.playback-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center}.btn-play{padding:14px 36px;border:none;border-radius:50px;background:var(--accent);color:#fff;font-size:1.1rem;cursor:pointer;transition:all .2s;font-weight:700}.btn-play:hover{transform:scale(1.05);box-shadow:0 4px 20px #e9456080}.btn-play.stop{background:#f44336}.bpm-display{font-size:.82rem;color:var(--text2);display:flex;gap:10px}.songs-area{padding:20px}.songs-area h2{margin-bottom:16px}.empty-state{text-align:center;padding:60px 20px;color:var(--text2)}.empty-state p{margin-bottom:14px;font-size:1.1rem}.song-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}.song-card{background:var(--card-bg);border-radius:var(--radius);padding:14px;display:flex;flex-direction:column;align-items:center;text-align:center;transition:transform .2s;box-shadow:0 2px 8px #0000000f}.song-card:hover{transform:translateY(-4px)}.song-cover{font-size:2.2rem;margin-bottom:6px}.song-info h4{font-size:.9rem;margin-bottom:3px;color:var(--text)}.song-info p{font-size:.7rem;color:var(--text2);margin-bottom:1px}.song-date{font-size:.65rem!important}.song-stars{font-size:.8rem;margin:6px 0}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.dialog{background:var(--bg2);padding:28px;border-radius:20px;max-width:380px;width:90%;text-align:center;animation:popIn .3s ease-out}.dialog h3{margin-bottom:14px;color:var(--text)}.stars-display{font-size:1.5rem;margin-bottom:10px}.stars-display span{font-size:.8rem;color:var(--text2)}.star-details{text-align:left;font-size:.75rem;color:var(--text2);margin-bottom:12px;line-height:1.6;padding:8px;background:var(--bg);border-radius:8px}.dialog input{width:100%;padding:10px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:.95rem;margin-bottom:14px;outline:none}.dialog input:focus{border-color:var(--accent2)}.dialog-actions{display:flex;gap:8px;justify-content:center}.footer{text-align:center;padding:14px;color:var(--text2);font-size:.75rem;margin-top:auto}@media(max-width:600px){.header{flex-direction:column;gap:6px;padding:10px}.header h1{font-size:1.1rem}.chord-slots{grid-template-columns:repeat(4,1fr)}.chord-slot{min-height:48px}.note-palette{justify-content:center}.playback-bar{flex-direction:column;gap:6px}.timeline-beats{min-width:700px}}