*{box-sizing:border-box;margin:0;padding:0}body{color:#e0e0e0;background:#1a1a2e;font-family:Segoe UI,system-ui,-apple-system,sans-serif;overflow:hidden}#game-canvas{width:100vw;height:100vh;display:block}#ui-overlay{pointer-events:none;width:100%;height:100%;position:fixed;top:0;left:0}.screen{pointer-events:auto}.hidden{display:none!important}#menu-screen{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0a0a1ed9;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex}#menu-screen h1{letter-spacing:.1em;color:#ff6b4a;text-shadow:0 0 40px #ff6b4a66;margin-bottom:.5rem;font-size:4rem;font-weight:800}.subtitle{color:#888;letter-spacing:.05em;margin-bottom:2.5rem;font-size:1.1rem}button{letter-spacing:.08em;cursor:pointer;color:#fff;pointer-events:auto;background:#ff6b4a;border:none;border-radius:8px;padding:14px 48px;font-size:1.1rem;font-weight:600;transition:all .2s}button:hover{background:#ff8566;transform:translateY(-2px);box-shadow:0 8px 24px #ff6b4a4d}button:active{transform:translateY(0)}#hud{pointer-events:none;justify-content:space-between;align-items:center;width:100%;padding:20px 28px;display:flex;position:absolute;top:0;left:0}#level-display{color:#ccc;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);letter-spacing:.05em;background:#0006;border-radius:20px;padding:8px 20px;font-size:1rem;font-weight:600}#win-screen{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0a0a1ecc;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex}#win-screen h2{color:#4ade80;text-shadow:0 0 30px #4ade804d;margin-bottom:2rem;font-size:2.5rem;font-weight:700}