*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,system-ui,sans-serif;background:#1a1a2e;color:#fff;height:100vh;overflow:hidden}#app{width:100vw;height:100vh;position:relative}.screen{position:absolute;inset:0;display:none;flex-direction:column;align-items:center;justify-content:center}.screen.active{display:flex}#menu-screen{background:linear-gradient(135deg,#1a1a2e,#16213e,#0f3460)}#menu-screen h1{font-size:3rem;font-weight:800;background:linear-gradient(90deg,#0f8,#0cf);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem}.subtitle{color:#aaa;font-size:1.1rem;margin-bottom:3rem}.game-grid{display:flex;gap:2rem;flex-wrap:wrap;justify-content:center}.game-card{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:2rem;width:260px;text-align:center;transition:transform .2s,border-color .2s}.game-card:hover{transform:translateY(-4px);border-color:#0f8}.game-icon{font-size:4rem;margin-bottom:1rem}.game-card h2{font-size:1.4rem;margin-bottom:.5rem}.game-card p{color:#aaa;font-size:.9rem;margin-bottom:1.5rem;line-height:1.5}.play-btn{background:linear-gradient(90deg,#0f8,#0cf);color:#000;border:none;border-radius:8px;padding:.75rem 2rem;font-size:1rem;font-weight:700;cursor:pointer;transition:opacity .2s,transform .1s}.play-btn:hover{opacity:.9;transform:scale(1.05)}#game-screen{padding:0;background:#000}#game-header{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.5rem;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}#back-btn{background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:.5rem 1rem;cursor:pointer;font-size:.9rem;transition:background .2s}#back-btn:hover{background:#fff3}#game-info{display:flex;gap:2rem;font-size:1rem;color:#ccc}#game-info strong{color:#0f8;font-size:1.2rem}#game-canvas{display:block;cursor:crosshair}#game-over{position:fixed;inset:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:200}#game-over.hidden{display:none}.game-over-box{background:#1a1a2e;border:2px solid #00ff88;border-radius:20px;padding:3rem;text-align:center;min-width:300px}.game-over-box h2{font-size:2rem;color:#0f8;margin-bottom:1.5rem}.game-over-box p{font-size:1.2rem;color:#ccc;margin-bottom:.75rem}.game-over-box strong{color:#0cf;font-size:1.5rem}.game-over-btns{display:flex;gap:1rem;justify-content:center;margin-top:2rem}.game-over-btns button{padding:.75rem 1.5rem;border-radius:8px;border:none;font-size:1rem;font-weight:700;cursor:pointer;transition:opacity .2s}#restart-btn{background:linear-gradient(90deg,#0f8,#0cf);color:#000}#menu-btn{background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.3)!important}.game-over-btns button:hover{opacity:.85}#sound-toggle{position:fixed;top:.75rem;right:1.25rem;z-index:300;background:#0000008c;border:1px solid rgba(255,255,255,.2);border-radius:50%;width:2.6rem;height:2.6rem;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,border-color .2s,transform .1s;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);line-height:1}#sound-toggle:hover{background:#ffffff26;border-color:#fff6;transform:scale(1.1)}#sound-toggle.muted{border-color:#ff505080;background:#78000066}.pop-effect{position:fixed;pointer-events:none;z-index:150;font-size:1.5rem;font-weight:800;color:#0f8;text-shadow:0 0 10px #00ff88;animation:floatUp .8s ease-out forwards}@keyframes floatUp{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-60px) scale(1.5)}}