*{box-sizing:border-box}body{margin:0;background:#0b1018;color:#f3f6fb;font:15px/1.45 system-ui,Arial}#game-shell{max-width:1400px;margin:auto;padding:18px}header{display:flex;justify-content:space-between;align-items:center;padding:12px 4px 18px;border-bottom:1px solid #273244}header strong{letter-spacing:3px;font-size:20px}header small{display:block;color:#8997aa;font-size:11px;letter-spacing:1px}#connection{color:#83d6a2;font-size:12px}main{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:18px;margin-top:18px}#arena-wrap{position:relative;min-width:0;background:#141e2c;border:1px solid #2c3b50;border-radius:14px;overflow:hidden}#stage{height:min(67vw,650px);min-height:380px}#stage canvas{display:block;width:100%;height:100%}#hud{position:absolute;z-index:2;top:16px;left:18px;right:18px;display:flex;align-items:start;justify-content:space-between;pointer-events:none}.fighter-hud{width:36%;text-shadow:0 2px 4px #000}.fighter-hud b{font-size:12px;letter-spacing:2px}.fighter-hud small{color:#d0d8e5}.fighter-hud.right{text-align:right}.bar{height:13px;background:#303b4b;border:1px solid #7d8ca0;border-radius:20px;margin:5px 0;overflow:hidden}.bar i{display:block;height:100%;width:100%;background:linear-gradient(90deg,#43d17a,#a8e66c);transition:width .2s}.right .bar i{margin-left:auto;background:linear-gradient(90deg,#ffb04d,#f05252)}.round{text-align:center;font-size:10px;letter-spacing:2px;color:#d4dbea}.round span{font-size:25px;font-weight:800}#message{position:absolute;z-index:3;top:44%;left:0;right:0;text-align:center;font-size:clamp(24px,5vw,48px);font-weight:900;letter-spacing:5px;color:#fff;text-shadow:0 4px 16px #000;pointer-events:none}#controls{display:flex;gap:8px;justify-content:center;padding:12px;background:#0c1420;flex-wrap:wrap}button{cursor:pointer;border:1px solid #46566c;background:#202d3e;color:#fff;border-radius:8px;padding:10px 14px;font-weight:700}button:hover{background:#31435b}button kbd{font-size:10px;color:#9eafc4;margin-left:6px}.primary{background:#d84b36;border-color:#f4775f;width:100%;margin:12px 0}aside{background:#121b28;border:1px solid #2c3b50;border-radius:14px;padding:18px}h2{font-size:15px;margin:2px 0 10px}p{color:#aeb9c8;font-size:13px}.key-list{display:grid;grid-template-columns:1fr 1.5fr;gap:7px;margin:15px 0;font-size:12px}.key-list span{color:#9aa9bb}.key-list b{text-align:right;font-size:11px}label{display:block;font-size:12px;color:#aeb9c8}input{display:block;width:100%;margin:6px 0 8px;padding:10px;background:#0b121d;border:1px solid #3b4a5e;border-radius:7px;color:white}.muted{font-size:11px;color:#8795a8}ol{padding-left:20px;color:#d6deea;font-size:12px}li{padding:3px 0}hr{border:0;border-top:1px solid #2b394b;margin:18px 0}footer{text-align:center;color:#718095;font-size:11px;padding:18px}@media(max-width:850px){main{grid-template-columns:1fr}#stage{height:65vw;min-height:340px}aside{display:grid;grid-template-columns:1fr 1fr;gap:8px}aside h2,aside hr{grid-column:1/-1}aside p{margin:0}}