:root{color-scheme:dark;font-family:Segoe UI,ui-sans-serif,system-ui,-apple-system,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa;overflow-x:hidden}.shell{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:1rem;gap:1rem;background:linear-gradient(180deg,#0a0a1a,#0a0a0a)}.game-header{display:flex;align-items:center;gap:2rem;width:100%;max-width:500px;justify-content:space-between}.game-title{font-size:1.4rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.score-display{text-align:right}.score-label{font-size:.65rem;text-transform:uppercase;letter-spacing:.15em;color:#fff6}.score-value{font-size:1.6rem;font-weight:700;font-variant-numeric:tabular-nums;color:#60a5fa}.best-score{font-size:.75rem;color:#ffffff59;font-variant-numeric:tabular-nums}.combo-banner{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);font-size:2.5rem;font-weight:800;color:#fbbf24;text-shadow:0 0 30px rgba(251,191,36,.6);pointer-events:none;z-index:100;animation:comboPop .8s ease-out forwards}@keyframes comboPop{0%{transform:translate(-50%,-50%) scale(0);opacity:1}50%{transform:translate(-50%,-50%) scale(1.3);opacity:1}to{transform:translate(-50%,-50%) scale(1.8);opacity:0}}.board-container{position:relative}.board{display:grid;grid-template-columns:repeat(8,1fr);gap:2px;padding:6px;background:#ffffff0a;border-radius:12px;border:1px solid rgba(255,255,255,.08);width:min(90vw,400px);height:min(90vw,400px);-webkit-user-select:none;user-select:none}.cell{background:#ffffff08;border-radius:4px;transition:background .15s,transform .15s,box-shadow .15s;position:relative}.cell.occupied{background:var(--cell-color, #3b82f6);box-shadow:inset 0 1px 2px #ffffff40,0 2px 8px #0000004d;border-radius:5px}.cell.clearing{animation:clearFlash .4s ease-out}@keyframes clearFlash{0%{background:#fff;transform:scale(1.1)}to{background:transparent;transform:scale(1)}}.cell.ghost{background:var(--ghost-color, rgba(59, 130, 246, .25));border:2px dashed rgba(255,255,255,.2)}.cell.ghost-invalid{background:#ef444433;border:2px dashed rgba(239,68,68,.4)}.pieces-area{display:flex;gap:.75rem;justify-content:center;align-items:center;min-height:100px;padding:.5rem}.piece-slot{display:flex;align-items:center;justify-content:center;min-width:80px;min-height:80px;border:2px dashed rgba(255,255,255,.08);border-radius:12px;cursor:grab;transition:transform .15s,border-color .15s,box-shadow .15s;touch-action:none}.piece-slot:hover{transform:scale(1.05);border-color:#fff3;box-shadow:0 0 20px #60a5fa26}.piece-slot:active{cursor:grabbing}.piece-slot.selected{border-color:#60a5fa;box-shadow:0 0 25px #60a5fa4d;transform:scale(1.08)}.piece-slot.empty{opacity:.2;pointer-events:none}.piece-grid{display:grid;gap:2px;padding:4px}.piece-cell{width:18px;height:18px;border-radius:3px;box-shadow:inset 0 1px 2px #fff3}.game-over-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d9;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:200;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.game-over-card{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:2rem;text-align:center;max-width:320px;width:90%;animation:slideUp .4s ease-out}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}.game-over-card h2{margin:0 0 .5rem;font-size:1.6rem;background:linear-gradient(135deg,#f87171,#fb923c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.game-over-card .final-score{font-size:2.8rem;font-weight:800;color:#60a5fa;margin:.5rem 0;font-variant-numeric:tabular-nums}.game-over-card .new-best{color:#fbbf24;font-size:.85rem;font-weight:600;margin-bottom:.5rem}.restart-btn{margin-top:1rem;padding:.75rem 2rem;border:none;border-radius:10px;background:linear-gradient(135deg,#3b82f6,#8b5cf6);color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .15s,box-shadow .15s}.restart-btn:hover{transform:scale(1.05);box-shadow:0 0 25px #60a5fa66}.next-level-hint{font-size:.7rem;color:#ffffff4d;text-align:center;margin-top:.25rem}.level-progress{width:min(90vw,400px);height:4px;background:#ffffff0f;border-radius:2px;overflow:hidden}.level-bar{height:100%;background:linear-gradient(90deg,#3b82f6,#8b5cf6);border-radius:2px;transition:width .4s ease-out}.level-label{font-size:.7rem;color:#ffffff59;text-align:center;letter-spacing:.1em;text-transform:uppercase}