: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:#050510;color:#fafafa}.game-shell{min-height:100vh;display:grid;place-items:center;padding:2rem;background:radial-gradient(ellipse at 20% 50%,rgba(0,255,247,.04) 0%,transparent 50%),radial-gradient(ellipse at 80% 50%,rgba(255,0,229,.04) 0%,transparent 50%),#050510}.game-container{display:flex;flex-direction:column;align-items:center;gap:1rem}.game-title{margin:0;font-size:2.5rem;font-weight:800;letter-spacing:.25em;color:#00fff7;text-shadow:0 0 10px rgba(0,255,247,.6),0 0 30px rgba(0,255,247,.3),0 0 60px rgba(0,255,247,.15)}.score-row{display:flex;gap:2.5rem;font-size:.85rem;letter-spacing:.15em;text-transform:uppercase}.score-label{color:#00fff780}.score-label strong{color:#00fff7;text-shadow:0 0 8px rgba(0,255,247,.4);margin-left:.4rem;font-variant-numeric:tabular-nums}.game-canvas{border:1px solid rgba(0,255,247,.2);border-radius:.5rem;display:block;box-shadow:0 0 15px #00fff71a,0 0 40px #00fff70d,inset 0 0 15px #00fff708}.game-hint{margin:0;color:#00fff759;font-size:.8rem;letter-spacing:.15em;animation:blink 1.5s ease-in-out infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.restart-btn{margin-top:.25rem;padding:.6rem 2rem;font-size:.85rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:#050510;background:#00fff7;border:none;border-radius:.5rem;cursor:pointer;box-shadow:0 0 12px #00fff780,0 0 30px #00fff733;transition:box-shadow .2s,background .2s}.restart-btn:hover{background:#66fffa;box-shadow:0 0 20px #00fff7b3,0 0 50px #00fff74d}