:root{color-scheme:dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box;margin:0}html,body,#root{min-height:100vh;background:#0f0f13;color:#fafafa;overflow:hidden}.game-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}.game-wrapper{display:flex;flex-direction:column;align-items:center;gap:12px}.game-header{display:flex;align-items:center;gap:24px;width:100%;max-width:800px;justify-content:space-between}.game-title{font-size:1.8rem;font-weight:700;background:linear-gradient(135deg,#ef4444,#3b82f6,#22c55e,#eab308);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.score-display{font-size:1.2rem;font-weight:600;color:#fffc}.game-canvas{border-radius:12px;cursor:crosshair;max-width:100%;height:auto;border:1px solid rgba(255,255,255,.1)}.game-hint{color:#ffffff59;font-size:.8rem}.game-over-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;z-index:10}.game-over-overlay h2{font-size:2.5rem;color:#ef4444}.game-over-overlay .final-score{font-size:1.4rem;color:#ffffffd9}.restart-btn{padding:12px 32px;font-size:1.1rem;font-weight:600;border:none;border-radius:8px;background:linear-gradient(135deg,#3b82f6,#8b5cf6);color:#fff;cursor:pointer;transition:transform .1s}.restart-btn:hover{transform:scale(1.05)}.restart-btn:active{transform:scale(.97)}