:root{color-scheme:dark;font-family:Arial,Helvetica Neue,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a14;color:#fafafa}.game-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:.75rem;gap:.5rem}.title{margin:0;font-size:1.6rem;font-weight:700;color:#00ff80;text-shadow:0 0 12px rgba(0,255,128,.4);letter-spacing:.08em}.game-canvas{border:2px solid rgba(0,255,128,.25);border-radius:.4rem;outline:none;box-shadow:0 0 30px #00ff801a;display:block}.controls{margin:0;font-size:.85rem;color:#fff6}