html, body {
				margin: 0; padding: 0; width: 100%; height: 100%;
				overflow: hidden; background: #88ccee;
				touch-action: none; overscroll-behavior: none;
				user-select: none; -webkit-user-select: none;
				-webkit-tap-highlight-color: transparent;
			}
			#container { position: fixed; inset: 0; }
			#crosshair {
				position: absolute; top: 50%; left: 50%;
				width: 16px; height: 16px; margin: -8px 0 0 -8px;
				pointer-events: none; z-index: 3; display: none;
			}
			#crosshair:before, #crosshair:after {
				content: ''; position: absolute; background: rgba(255,255,255,0.9);
				box-shadow: 0 0 3px #000;
			}
			#crosshair:before { left: 7px; top: 0; width: 2px; height: 16px; }
			#crosshair:after { top: 7px; left: 0; height: 2px; width: 16px; }
			#hud {
				position: absolute; bottom: 16px; left: 16px;
				font-family: monospace; color: #fff;
				text-shadow: 0 0 4px #000; pointer-events: none; z-index: 2;
			}
			#healthBar {
				width: 200px; height: 14px;
				border: 2px solid rgba(255,255,255,0.85);
				border-radius: 8px; overflow: hidden;
				background: rgba(0,0,0,0.35);
			}
			#healthFill {
				height: 100%; width: 100%;
				background: linear-gradient(90deg, #28d17c, #7ef0b0);
				transition: width 0.12s linear, background 0.2s linear;
			}
			#hudText { margin-top: 6px; font-size: 12px; letter-spacing: 0.5px; opacity: 0.85; }
			#hudHint { margin-top: 3px; font-size: 11px; letter-spacing: 0.5px; opacity: 0.7; color: #ffd27a; }
			#damageFlash {
				position: absolute; inset: 0; z-index: 3; pointer-events: none;
				background: radial-gradient(circle at center, rgba(255,0,0,0) 35%, rgba(255,0,0,0.75) 100%);
				opacity: 0;
			}
			#blastFlash {
				position: absolute; inset: 0; z-index: 3; pointer-events: none;
				background: radial-gradient(circle at center, rgba(255,240,200,0.95) 0%, rgba(255,150,50,0.6) 60%, rgba(255,80,0,0.2) 100%);
				opacity: 0;
			}
			#waveMsg {
				position: absolute; top: 28%; left: 0; width: 100%;
				text-align: center; font-family: monospace;
				color: #fff; text-shadow: 0 0 12px #000, 0 0 4px #000;
				font-size: 42px; letter-spacing: 3px; font-weight: bold;
				opacity: 0; transition: opacity 0.4s ease; pointer-events: none; z-index: 4;
			}
			#gameOver {
				position: absolute; inset: 0; z-index: 5;
				display: none; align-items: center; justify-content: center;
				background: rgba(0,0,0,0.65);
				font-family: monospace; color: #fff; text-align: center;
			}
			#gameOver h1 { font-size: 52px; margin: 0 0 12px 0; letter-spacing: 4px; color: #ff5a4a; }
			#gameOver p { font-size: 20px; margin: 6px 0; letter-spacing: 2px; }
			#gameOver .restart { margin-top: 22px; font-size: 15px; opacity: 0.8; }
			#loading {
				position: absolute; inset: 0; z-index: 30;
				display: flex; align-items: center; justify-content: center;
				background: #0b0f14; color: #fff;
				font-family: monospace; font-size: 22px; letter-spacing: 4px;
				flex-direction: column; gap: 14px;
			}
			#loadingProgress { font-size: 16px; color: #7ef0b0; }
			#sizePanel {
				position: absolute; top: 12px; right: 12px; z-index: 25; display: block;
				width: 270px; max-height: 92vh; overflow: auto; padding: 8px 10px; box-sizing: border-box;
				background: rgba(0,0,0,0.82); color: #fff; font: 12px monospace;
				border-radius: 8px; user-select: none; touch-action: manipulation;
				box-shadow: 0 4px 16px rgba(0,0,0,0.6);
			}
			#sizePanel .t { display: flex; justify-content: space-between; letter-spacing: 1px; color: #ffd27a; cursor: pointer; font-weight: bold; }
			#sizePanel select { width: 100%; margin-top: 8px; font: 12px monospace; padding: 3px; background: #222; color: #fff; border: 1px solid #555; }
			#sizePanel .b { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px; }
			#sizePanel button { font: 11px monospace; padding: 3px 7px; cursor: pointer; background: #333; color: #fff; border: 1px solid #666; border-radius: 3px; }
			#sizePanel button:hover { background: #444; }
			#sizePanel .c { display: flex; align-items: center; gap: 6px; margin-top: 8px; cursor: pointer; }
			#sizePanel .r { margin-top: 7px; }
			#sizePanel .r div { display: flex; justify-content: space-between; }
			#sizePanel input[type=range] { width: 100%; margin: 2px 0 0 0; }
			#sizePanel .n { margin-top: 6px; opacity: 0.7; font-size: 10px; word-break: break-word; }
			#sizePanel hr { border: none; border-top: 1px solid rgba(255,255,255,0.15); margin: 7px 0; }