*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;overflow:hidden;margin:0;padding:0;background:#1a1a2e}#root{width:100%;height:100vh}.app{min-height:100vh;width:100%;position:relative;overflow:hidden;display:flex;flex-direction:column}.game-background{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;background:linear-gradient(180deg,#0f0c29,#1a1a3e 40%,#24243e,#302b63)}.game-container{position:relative;z-index:1;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;min-height:100vh}.start-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;text-align:center}.start-screen h1{font-size:56px;color:#fff;text-shadow:0 0 20px rgba(0,240,240,.5),2px 3px 6px rgba(0,0,0,.4);margin-bottom:12px;letter-spacing:4px;text-transform:uppercase}.start-screen p{font-size:18px;color:#ffffffbf;margin-bottom:28px}.start-instructions{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:center;margin-bottom:32px;font-size:14px;color:#fff9}.start-instructions b{color:#00f0f0}.btn-primary{background:linear-gradient(135deg,#00f0f0,#00c0ff);color:#0f0c29;border:none;padding:14px 40px;font-size:18px;font-weight:700;border-radius:10px;cursor:pointer;box-shadow:0 4px 20px #00f0f059;transition:all .2s ease;letter-spacing:1px}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 28px #00f0f080}.btn-secondary{background:#ffffff14;color:#fffc;border:1px solid rgba(255,255,255,.15);padding:8px 18px;font-size:13px;font-weight:600;border-radius:8px;cursor:pointer;transition:all .2s ease;width:100%}.btn-secondary:hover{background:#ffffff24;border-color:#ffffff4d}.btn-restart{margin-top:6px}.game-over-stats{display:flex;gap:32px;margin-bottom:32px}.go-stat{display:flex;flex-direction:column;align-items:center;gap:6px}.go-stat span{font-size:13px;color:#ffffff80;text-transform:uppercase;letter-spacing:1px}.go-stat b{font-size:28px;color:#00f0f0}.play-area{display:flex;align-items:flex-start;justify-content:center;gap:20px;padding:20px;width:100%}.side-panel{display:flex;flex-direction:column;gap:16px;min-width:120px}.score-panel{display:flex;flex-direction:column;gap:12px}.stat-box{background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:12px 16px;text-align:center}.panel-label{font-size:11px;text-transform:uppercase;letter-spacing:2px;color:#ffffff73;margin-bottom:4px}.stat-value{font-size:22px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}.next-piece-box{background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:12px 16px;display:flex;flex-direction:column;align-items:center}.next-grid{display:flex;flex-wrap:wrap;margin-top:8px}.next-cell{border-radius:3px}.next-cell.filled{border:1px solid rgba(255,255,255,.3);box-shadow:inset 0 0 4px #ffffff26}.board-wrapper{position:relative;flex-shrink:0}.board{position:relative;background:#0000008c;border:2px solid rgba(255,255,255,.12);border-radius:4px;box-shadow:0 0 40px #00f0f014,inset 0 0 20px #0000004d}.cell{position:absolute;border-radius:3px;transition:background-color .05s ease}.cell.empty{background:#ffffff05;border:1px solid rgba(255,255,255,.04)}.cell.filled{border:1px solid rgba(255,255,255,.35);box-shadow:inset 0 0 6px #fff3,0 0 4px #0006}.cell.ghost{background:#ffffff0f!important;border:1px dashed rgba(255,255,255,.2)}.pause-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:4px;cursor:pointer;z-index:10}.pause-text{font-size:36px;font-weight:800;color:#fff;letter-spacing:6px;text-shadow:0 0 20px rgba(0,240,240,.5)}.pause-sub{font-size:14px;color:#ffffff80;margin-top:12px}.mobile-controls{display:none;flex-direction:column;align-items:center;gap:8px;padding:12px 0;position:fixed;bottom:16px;left:50%;transform:translate(-50%);z-index:20}.controls-row{display:flex;gap:12px}.ctrl-btn{width:56px;height:56px;border-radius:50%;border:2px solid rgba(255,255,255,.2);background:#ffffff14;color:#ffffffb3;display:flex;align-items:center;justify-content:center;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.ctrl-btn:active{background:#00f0f033;border-color:#00f0f066}.ctrl-btn--drop{width:64px;height:64px}@media (max-width: 520px){.play-area{flex-direction:column;align-items:center;gap:12px;padding:10px}.side-panel{flex-direction:row;gap:10px;min-width:0}.left-panel{order:-1}.right-panel{order:1}.score-panel{flex-direction:row;gap:10px}.stat-box{padding:8px 12px}.stat-value{font-size:18px}.mobile-controls{display:flex}.board-wrapper{transform:scale(.85);transform-origin:top center}}@media (max-width: 480px){.board-wrapper{transform:scale(.7)}}