:root{--gold-primary: #dfba53;--gold-light: #f5e49e;--gold-dark: #8c6a1b;--bg-glass: rgba(18, 16, 24, .75);--bg-glass-card: rgba(30, 26, 38, .65);--border-glass: rgba(223, 186, 83, .35);--text-main: #f8f6f0;--text-dim: #c5bba8;--accent-red: #c41e3a;--accent-blue: #3b82f6}*{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:#0b0a10;font-family:Cinzel,Trajan Pro,Georgia,serif;color:var(--text-main)}#canvas-container{width:100%;height:100%;position:absolute;top:0;left:0;z-index:1}.ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;z-index:10;pointer-events:none;display:flex;flex-direction:column;justify-content:space-between;padding:20px}.interactive{pointer-events:auto}.glass-panel{background:var(--bg-glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border-glass);border-radius:14px;box-shadow:0 10px 30px #0009,inset 0 1px #ffffff1a}.header-bar{display:flex;justify-content:space-between;align-items:center;padding:12px 24px;max-width:1400px;margin:0 auto;width:100%}.title-box{display:flex;flex-direction:column}.main-title{font-size:20px;font-weight:700;letter-spacing:3px;background:linear-gradient(135deg,#fff2be,#dfba53,#9a7322);-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 2px 10px rgba(223,186,83,.2)}.sub-title{font-size:11px;letter-spacing:2px;color:var(--text-dim);font-family:sans-serif;text-transform:uppercase}.nav-actions{display:flex;gap:10px}.btn-luxury{background:linear-gradient(180deg,#3c3019cc,#1c160ce6);border:1px solid var(--border-glass);color:var(--gold-light);padding:8px 16px;border-radius:8px;cursor:pointer;font-family:Cinzel,serif;font-size:12px;letter-spacing:1px;transition:all .25s ease;display:flex;align-items:center;gap:6px;box-shadow:0 4px 12px #0006}.btn-luxury:hover{background:linear-gradient(180deg,#645028e6,#2d2312f2);border-color:var(--gold-primary);box-shadow:0 0 15px #dfba5366;transform:translateY(-1px)}.btn-luxury:active{transform:translateY(1px)}.btn-luxury.active{background:linear-gradient(180deg,#dfba53,#9a7322);color:#1a1202;font-weight:700;box-shadow:0 0 20px #dfba5399}.center-hud{position:absolute;top:90px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:8px}.spring-gauge-container{display:flex;align-items:center;gap:12px;padding:8px 20px}.spring-icon{font-size:18px;color:var(--gold-primary)}.spring-bar-bg{width:240px;height:12px;background:#0009;border:1px solid var(--border-glass);border-radius:6px;overflow:hidden;position:relative}.spring-bar-fill{height:100%;width:0%;background:linear-gradient(90deg,#ff4d4d,#dfba53 40%,#52e5a0);border-radius:5px;transition:width .15s ease-out;box-shadow:0 0 10px #dfba5380}.spring-text{font-size:12px;font-weight:700;color:var(--gold-light);min-width:45px}.current-song-tag{font-size:13px;letter-spacing:1px;color:#fff;padding:4px 14px;border-radius:20px;background:#00000080;border:1px solid rgba(223,186,83,.3)}.control-bar{max-width:1000px;margin:0 auto;width:100%;display:flex;justify-content:space-between;align-items:center;padding:14px 28px;gap:15px}.crank-control-group{display:flex;align-items:center;gap:10px}.btn-crank{padding:12px 24px;font-size:14px;font-weight:700;background:linear-gradient(180deg,#dfba53,#8c6a1b);color:#171002;border:1px solid #ffe49e;border-radius:10px;cursor:pointer;display:flex;align-items:center;gap:8px;box-shadow:0 0 20px #dfba5366;transition:all .2s}.btn-crank:hover{transform:scale(1.04);box-shadow:0 0 30px #dfba53b3}.btn-crank:active{transform:scale(.96);background:#c59f37}.btn-icon-round{width:42px;height:42px;border-radius:50%;background:var(--bg-glass-card);border:1px solid var(--border-glass);color:var(--gold-light);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:16px;transition:all .2s}.btn-icon-round:hover{background:#dfba5340;border-color:var(--gold-primary);transform:scale(1.08)}.modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#000000bf;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .3s ease}.modal-overlay.active{opacity:1;pointer-events:auto}.modal-box{width:90%;max-width:960px;max-height:85vh;padding:30px;display:flex;flex-direction:column;gap:20px;position:relative;overflow:hidden}.modal-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-glass);padding-bottom:14px}.modal-title{font-size:22px;letter-spacing:2px;color:var(--gold-light)}.btn-close{background:none;border:none;color:var(--text-dim);font-size:24px;cursor:pointer;transition:color .2s}.btn-close:hover{color:var(--gold-primary)}.song-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;overflow-y:auto;max-height:60vh;padding-right:8px}.song-card{background:var(--bg-glass-card);border:1px solid rgba(223,186,83,.2);border-radius:10px;padding:16px;cursor:pointer;transition:all .25s ease;display:flex;flex-direction:column;justify-content:space-between;gap:8px}.song-card:hover{border-color:var(--gold-primary);background:#3c301980;transform:translateY(-2px);box-shadow:0 6px 18px #00000080}.song-card.selected{border-color:var(--gold-primary);background:linear-gradient(135deg,#503c14b3,#281e0acc);box-shadow:0 0 15px #dfba5366}.song-title{font-size:15px;font-weight:700;color:var(--text-main)}.song-composer{font-size:12px;color:var(--gold-light)}.song-meta{display:flex;justify-content:space-between;font-size:11px;color:var(--text-dim);font-family:sans-serif;border-top:1px solid rgba(255,255,255,.08);padding-top:6px}.piano-roll-container{display:flex;flex-direction:column;gap:12px;max-height:65vh;overflow-y:auto}.piano-roll-controls{display:flex;justify-content:space-between;align-items:center;gap:10px}.piano-roll-scroll{overflow-x:auto;border:1px solid var(--border-glass);border-radius:8px;background:#0a080fe6;padding:10px}.roll-grid{display:grid;grid-template-columns:80px repeat(32,28px);gap:2px}.roll-key-label{font-size:11px;padding:4px;color:var(--gold-light);display:flex;align-items:center;border-right:2px solid var(--border-glass)}.roll-cell{width:28px;height:20px;background:#ffffff0d;border:1px solid rgba(255,255,255,.08);border-radius:3px;cursor:pointer;transition:background .15s}.roll-cell:hover{background:#dfba534d}.roll-cell.active{background:var(--gold-primary);box-shadow:0 0 8px var(--gold-primary)}.roll-cell.bar-start{border-left:2px solid rgba(223,186,83,.4)}.settings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.settings-section{display:flex;flex-direction:column;gap:10px}.section-label{font-size:13px;letter-spacing:1px;color:var(--gold-light);border-bottom:1px solid rgba(223,186,83,.2);padding-bottom:4px}.option-list{display:flex;flex-direction:column;gap:6px}.option-btn{padding:8px 12px;background:var(--bg-glass-card);border:1px solid rgba(255,255,255,.1);border-radius:6px;color:var(--text-main);font-family:Cinzel,serif;font-size:12px;cursor:pointer;text-align:left;transition:all .2s}.option-btn:hover{border-color:var(--gold-primary);background:#dfba5326}.option-btn.active{border-color:var(--gold-primary);background:linear-gradient(90deg,#dfba5366,#dfba531a);color:var(--gold-light);font-weight:700}.slider-group{display:flex;flex-direction:column;gap:4px}.slider-group label{font-size:11px;color:var(--text-dim)}input[type=range]{-webkit-appearance:none;width:100%;height:6px;background:#ffffff26;border-radius:3px;outline:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--gold-primary);cursor:pointer;box-shadow:0 0 8px #dfba53cc}.interactive-hint{position:absolute;bottom:95px;left:50%;transform:translate(-50%);font-size:12px;color:var(--text-dim);background:#0009;padding:6px 16px;border-radius:20px;border:1px solid rgba(223,186,83,.2);pointer-events:none;letter-spacing:1px;font-family:sans-serif;animation:pulseHint 3s infinite ease-in-out}@keyframes pulseHint{0%,to{opacity:.6}50%{opacity:1}}@media (max-width: 768px){.header-bar{padding:8px 12px}.main-title{font-size:16px}.control-bar{padding:10px 14px;flex-wrap:wrap;justify-content:center}.spring-bar-bg{width:140px}}