:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa}.game-shell{min-height:100vh;display:grid;place-items:center;padding:1rem;background:radial-gradient(ellipse at 50% 20%,#1a0a2e,#0a0a0a 70%)}.game-container{position:relative;display:flex;flex-direction:column;align-items:center;gap:.75rem}.game-hud{display:flex;align-items:center;justify-content:space-between;width:420px;max-width:100%;padding:.5rem 1rem;background:#ffffff0d;border-radius:.5rem;border:1px solid rgba(255,255,255,.08)}.hud-score{display:flex;flex-direction:column;align-items:center}.hud-label{font-size:.6rem;letter-spacing:.15em;text-transform:uppercase;color:#fff6}.hud-value{font-size:1.3rem;font-weight:700;font-variant-numeric:tabular-nums;color:gold;text-shadow:0 0 10px rgba(255,215,0,.3)}.hud-lives{display:flex;gap:.25rem;font-size:1.4rem}.heart{transition:transform .2s,opacity .2s}.heart.dead{opacity:.3;transform:scale(.8)}.game-canvas{width:420px;max-width:100%;height:auto;border-radius:.75rem;border:1px solid rgba(255,255,255,.1);cursor:none;touch-action:none}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;top:3.5rem;display:grid;place-items:center;background:#000000b3;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-radius:.75rem;z-index:10}.overlay-content{text-align:center;display:flex;flex-direction:column;align-items:center;gap:.75rem}.overlay-content h1{margin:0;font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,gold,#ff8c00);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:none}.subtitle{color:#fff9;font-size:1rem;margin:0}.final-score{font-size:1.5rem;font-weight:700;color:gold;margin:0}.new-record{font-size:.9rem;color:#ff6b6b;font-weight:600;text-transform:uppercase;letter-spacing:.1em;animation:pulse .6s ease-in-out infinite alternate;margin:0}@keyframes pulse{0%{opacity:.7;transform:scale(1)}to{opacity:1;transform:scale(1.05)}}.controls-info{display:flex;flex-direction:column;gap:.25rem;font-size:.75rem;color:#ffffff59}.play-btn{margin-top:.5rem;padding:.75rem 2.5rem;font-size:1.1rem;font-weight:700;border:none;border-radius:.5rem;cursor:pointer;background:linear-gradient(135deg,gold,#ff8c00);color:#1a0a2e;text-transform:uppercase;letter-spacing:.08em;transition:transform .15s,box-shadow .15s;box-shadow:0 4px 20px #ffd7004d}.play-btn:hover{transform:translateY(-2px);box-shadow:0 6px 28px #ffd70080}.play-btn:active{transform:translateY(0)}