:root{--bg-color: #0d0d0d;--panel-bg: #1a1a1a;--border-color: #333;--accent-color: #bfa1ff;--secondary-color: #6177da;--secondary-glow: rgba(97, 119, 218, .4);--accent-glow: rgba(191, 161, 255, .4);--danger-color: #ff4757;--danger-glow: rgba(255, 71, 87, .4);--danger-dim: #8f2831;--text-primary: #fff;--text-secondary: #aaa;--grid-cell-size: 50px;--grid-gap: 8px}body{background-color:var(--bg-color);color:var(--text-primary);font-family:Inter,system-ui,-apple-system,sans-serif;margin:0;height:100vh;overflow:hidden;display:flex;flex-direction:column}header{background-color:var(--panel-bg);padding:1rem 2rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}h1{font-size:1.2rem;font-weight:600;margin:0;color:var(--accent-color);text-transform:uppercase;letter-spacing:1px}.main-container{display:flex;flex:1;overflow:hidden}aside{width:300px;background-color:var(--panel-bg);border-right:1px solid var(--border-color);padding:1.5rem;overflow-y:auto;display:flex;flex-direction:column;gap:2rem}main{flex:1;display:flex;justify-content:center;align-items:center;position:relative;background:radial-gradient(circle at center,#1a1a1a,#0d0d0d)}.grid-container{display:grid;grid-template-columns:repeat(8,var(--grid-cell-size));grid-template-rows:repeat(8,var(--grid-cell-size));gap:var(--grid-gap);padding:20px;background:#000;border-radius:12px;box-shadow:0 0 50px #00000080;border:1px solid #222}.cell{width:100%;height:100%;background-color:#222;border-radius:4px;transition:background-color .05s ease,box-shadow .05s ease;cursor:pointer;border:1px solid #333}.cell:hover{border-color:var(--accent-color)}.cell.active{box-shadow:0 0 15px currentColor}.control-group{display:flex;flex-direction:column;gap:.5rem}.control-group label{font-size:.85rem;color:var(--text-secondary);font-weight:500}select,input,button{background:#252525;border:1px solid #444;color:#fff;padding:10px;border-radius:6px;font-family:inherit;font-size:.9rem}button{cursor:pointer;background:#333;transition:all .2s;font-weight:500}button:hover{background:#444;border-color:#666}button.primary{background:var(--accent-color);color:#000;border-color:var(--accent-color);font-size:16px;font-weight:600}button.primary:hover{background:#d4c2ff;box-shadow:0 0 15px var(--accent-glow)}button.secondary{background:var(--secondary-color);color:#000;border-color:var(--secondary-color);font-size:16px;font-weight:600}button.secondary:hover{background:#d4c2ff;box-shadow:0 0 15px var(--secondary-glow)}button.danger{background:var(--danger-color);color:#fff;border-color:var(--danger-color);font-size:16px;font-weight:600}button.danger:hover{background:#d4c2ff;box-shadow:0 0 15px var(--danger-glow)}button.play-btn{width:100%;padding:15px;font-size:1rem;text-transform:uppercase;letter-spacing:1px}.file-drop-zone{border:2px dashed #444;border-radius:8px;padding:20px;text-align:center;color:var(--text-secondary);cursor:pointer;transition:all .2s}.file-drop-zone:hover{border-color:var(--accent-color);color:var(--text-primary);background:#bfa1ff0d}.hidden{display:none!important}.flex-row{display:flex;gap:10px}.flex-1{flex:1}.status-bar{position:absolute;bottom:0;left:0;right:0;background:#000c;padding:5px 20px;font-size:.8rem;color:#666;border-top:1px solid #222;display:flex;justify-content:space-between}