*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#4a9eff;--primary-dim:#2a5a9a;
  --bg-dark:#0d1117;--bg-darker:#080b10;--bg-panel:#161b22;--bg-workspace:#0b0e14;
  --accent-gold:#ffd700;--accent-orange:#ff6b35;--accent-green:#2ea043;--accent-red:#da3633;
  --text-primary:#e6edf3;--text-secondary:#8b949e;--border-color:#2a3a5a;
  --font-ui:'Chakra Petch',sans-serif;--font-mono:'Share Tech Mono',monospace;
}
html,body{width:100%;height:100%;overflow:hidden;background:#0a0a1a;color:var(--text-primary);font-family:var(--font-ui)}
#canvas{position:absolute;top:0;left:0;width:100%;height:100%;z-index:0}
#ui-root{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10}
#ui-root>*{pointer-events:auto}
#transition-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000;z-index:9999;opacity:0;pointer-events:none;transition:opacity .3s ease}
#transition-overlay.active{opacity:1;pointer-events:all}
#notifications{position:fixed;top:12px;right:12px;z-index:10000;display:flex;flex-direction:column;gap:8px}
.notification{background:var(--bg-panel);border:1px solid var(--border-color);border-radius:8px;padding:10px 18px;color:var(--text-primary);font-size:13px;font-family:var(--font-ui);transform:translateX(120%);transition:transform .3s ease;box-shadow:0 4px 20px rgba(0,0,0,.5);max-width:300px}
.notification.show{transform:translateX(0)}
.notification.success{border-left:3px solid var(--accent-green)}
.notification.error{border-left:3px solid var(--accent-red)}
.notification.info{border-left:3px solid var(--primary)}

/* Scrollbars */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg-dark)}
::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:#3a4a6a}

/* Button base */
.btn{font-family:var(--font-ui);font-weight:600;text-transform:uppercase;border:none;border-radius:8px;cursor:pointer;transition:all .2s ease;letter-spacing:.5px;outline:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.btn:hover{transform:scale(1.04);filter:brightness(1.2)}
.btn:active{transform:scale(.96);filter:brightness(.9)}
.btn-primary{background:var(--primary);color:#fff;padding:14px 48px;font-size:16px;box-shadow:0 0 20px rgba(74,158,255,.3)}
.btn-secondary{background:#2a3a5a;color:#fff;border:1px solid var(--primary);padding:12px 40px;font-size:14px}
.btn-small{padding:6px 14px;font-size:12px;border-radius:6px}
.btn-icon{width:40px;height:40px;padding:0;border-radius:8px;background:var(--bg-panel);border:1px solid var(--border-color);color:var(--text-primary);font-size:16px}
.btn-icon:hover{border-color:var(--primary);background:#1a2535}
.btn-icon.active{background:var(--primary-dim);border-color:var(--primary);box-shadow:0 0 8px rgba(74,158,255,.3)}

/* Panels */
.panel{background:var(--bg-dark);border:1px solid var(--border-color)}
.panel-header{padding:8px 12px;font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:1px;border-bottom:1px solid var(--border-color);cursor:pointer;display:flex;align-items:center;justify-content:space-between;user-select:none}

/* Tooltip */
[data-tooltip]{position:relative}
[data-tooltip]:hover::after{content:attr(data-tooltip);position:absolute;bottom:calc(100% + 6px);left:50%;transform:translateX(-50%);background:#1a2535;color:var(--text-primary);padding:4px 10px;border-radius:4px;font-size:11px;white-space:nowrap;z-index:100;border:1px solid var(--border-color);pointer-events:none}

/* Module card */
.module-card{width:110px;height:120px;background:var(--bg-panel);border:1px solid var(--border-color);border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:grab;transition:all .15s ease;position:relative;user-select:none}
.module-card:hover{border-color:var(--primary);background:#1a2535;transform:translateY(-2px)}
.module-card .mod-icon{width:56px;height:56px;display:flex;align-items:center;justify-content:center;font-size:28px;border-radius:6px;margin-bottom:4px}
.module-card .mod-name{font-size:10px;color:var(--text-secondary);text-align:center;line-height:1.2;padding:0 4px}
.module-card .mod-tier{position:absolute;top:4px;right:4px;font-size:9px;font-weight:700;padding:1px 5px;border-radius:3px;font-family:var(--font-mono)}
.tier-I{background:#444;color:#fff}.tier-II{background:#1a5c2a;color:#4eff6a}.tier-III{background:#1a3a6a;color:#6ac8ff}.tier-IV{background:#4a1a6a;color:#c46aff}.tier-V{background:#5a4a0a;color:#ffd700}

/* Category pill */
.cat-pill{padding:4px 12px;border-radius:12px;font-size:11px;font-weight:600;background:var(--bg-panel);border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;white-space:nowrap;transition:all .15s ease}
.cat-pill:hover,.cat-pill.active{background:var(--primary-dim);border-color:var(--primary);color:#fff}

/* Layer item */
.layer-item{display:flex;align-items:center;gap:8px;padding:6px 10px;border-radius:6px;cursor:pointer;font-size:12px;transition:all .1s ease}
.layer-item:hover{background:rgba(74,158,255,.08)}
.layer-item.active{background:rgba(74,158,255,.15);border-left:2px solid var(--primary)}
.layer-item .eye-btn{width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:12px;cursor:pointer;opacity:.6;border:none;background:none;color:var(--text-secondary)}
.layer-item .eye-btn:hover{opacity:1}
.layer-item .eye-btn.hidden{opacity:.3}

/* Input slider */
input[type=range]{-webkit-appearance:none;appearance:none;height:4px;background:var(--border-color);border-radius:2px;outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--primary);cursor:pointer}

/* Color swatch */
.color-swatch{width:24px;height:24px;border-radius:4px;border:2px solid var(--border-color);cursor:pointer;transition:transform .1s}
.color-swatch:hover{transform:scale(1.15);border-color:var(--primary)}
.color-swatch.active{border-color:#fff;box-shadow:0 0 6px var(--primary)}

/* Settings modal */
.modal-backdrop{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.6);z-index:5000;display:flex;align-items:center;justify-content:center}
.modal{background:var(--bg-panel);border:1px solid var(--border-color);border-radius:12px;padding:24px;max-width:500px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:0 8px 40px rgba(0,0,0,.6)}
.modal h2{margin-bottom:16px;font-size:18px}
.modal .close-btn{position:absolute;top:12px;right:12px;background:none;border:none;color:var(--text-secondary);font-size:20px;cursor:pointer}

/* Footer link */
.remix-link{position:fixed;bottom:4px;left:50%;transform:translateX(-50%);z-index:100;font-size:11px;color:var(--text-secondary);text-decoration:none;opacity:.5;transition:opacity .2s}
.remix-link:hover{opacity:1;color:var(--primary)}

/* Color palette popup */
.color-palette-popup{position:absolute;top:48px;left:50%;transform:translateX(-50%);background:var(--bg-panel);border:1px solid var(--border-color);border-radius:10px;padding:12px;z-index:200;box-shadow:0 8px 30px rgba(0,0,0,.5);min-width:240px}
.color-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:4px;margin-bottom:8px}
.recent-colors{display:flex;gap:4px;margin-top:6px}
.hex-input{background:var(--bg-dark);border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);padding:4px 8px;font-size:12px;font-family:var(--font-mono);width:80px}