*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden;background:#0a0a0a;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#fafafa;touch-action:none;user-select:none;-webkit-user-select:none}#root{display:flex;flex-direction:column;align-items:center;justify-content:center}.game-container{position:relative;width:100%;height:100%;max-width:500px;max-height:900px;display:flex;flex-direction:column}canvas{width:100%;flex:1;display:block;border-radius:12px}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#000000bf;border-radius:12px;z-index:10;padding:2rem;text-align:center}.overlay h1{font-size:2rem;margin-bottom:.5rem;background:linear-gradient(135deg,#ff6b6b,orange,#ff6b6b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.overlay p{color:#ffffffb3;font-size:.95rem;margin-bottom:1.5rem;line-height:1.5}.overlay .score-display{font-size:3rem;font-weight:700;color:orange;margin-bottom:.25rem}.overlay .best-display{font-size:1rem;color:#ffffff80;margin-bottom:1.5rem}.btn{background:linear-gradient(135deg,#ff6b6b,#ee5a24);border:none;color:#fff;font-size:1.1rem;font-weight:600;padding:.85rem 2.5rem;border-radius:50px;cursor:pointer;transition:transform .15s,box-shadow .15s;box-shadow:0 4px 20px #ee5a2466}.btn:active{transform:scale(.95)}.hud{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;align-items:center;pointer-events:none;z-index:5}.hud-item{background:#0009;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:6px 14px;border-radius:20px;font-size:.85rem;font-weight:600;border:1px solid rgba(255,255,255,.1)}.hud-item.lava-warning{color:#f44;animation:pulse .5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}