.menu{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;background:linear-gradient(180deg,#1a3a1a,#0d1f0d);color:#fff;text-align:center}.menu h1{font-size:4rem;text-shadow:3px 3px 0 #000;margin-bottom:.5rem;letter-spacing:4px;color:#5cb85c}.menu p{margin-bottom:1.5rem;color:#aaa}.menu button{padding:14px 48px;font-size:1.4rem;font-family:Courier New,monospace;background:#5cb85c;color:#fff;border:3px solid #3d7a3d;cursor:pointer;text-shadow:1px 1px 0 #333;margin-bottom:2rem}.menu button:hover{background:#4cae4c}.controls-info{color:#888;font-size:.85rem;line-height:1.8}.game-container{width:100%;height:100%;position:relative}.game-container canvas{width:100%;height:100%;display:block}.crosshair{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:24px;pointer-events:none;text-shadow:1px 1px 2px rgba(0,0,0,.8);z-index:10}.hud-top{position:absolute;top:10px;left:10px;color:#fff;font-size:.8rem;display:flex;gap:16px;text-shadow:1px 1px 2px rgba(0,0,0,.9);z-index:10}.inventory-bar{position:absolute;bottom:10px;left:50%;transform:translate(-50%);display:flex;gap:4px;z-index:10}.inv-slot{width:52px;height:52px;background:#0009;border:2px solid #555;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;position:relative}.inv-slot.selected{border-color:#fff;background:#ffffff26}.block-preview{width:28px;height:28px;border:1px solid rgba(0,0,0,.3)}.slot-number{position:absolute;top:1px;left:3px;font-size:.6rem;color:#ccc}.slot-name{font-size:.5rem;color:#aaa;margin-top:1px}