:root{--bg: #10131a;--fg: #f2f4f8;--bar: #2a2f3c;--ki: #ffd84a}html,body{margin:0;height:100%;background:var(--bg);color:var(--fg);font-family:system-ui,sans-serif;overflow:hidden}#game,#game canvas{display:block;width:100%;height:100%}#hud{position:fixed;top:0;left:0;right:0;display:flex;gap:16px;padding:max(12px,env(safe-area-inset-top,0px)) 16px 0;pointer-events:none}.side{flex:1}.lbl{font-size:12px;margin-bottom:4px;opacity:.8}.bar{height:16px;background:var(--bar);border-radius:8px;overflow:hidden;position:relative}.bar i{display:block;height:100%;width:100%}.bar.ki{height:8px;margin-top:4px}.bar.ki i{background:var(--ki)}.bar.ki:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:repeating-linear-gradient(90deg,transparent 0 calc(20% - 2px),var(--bg) calc(20% - 2px) 20%)}#hud-p1 .hp i{background:#ff9a3c}#hud-p2 .hp i{background:#3c9aff}#help{position:fixed;bottom:0;left:0;right:0;text-align:center;font-size:12px;line-height:1.5;opacity:.75;padding:8px 12px max(8px,env(safe-area-inset-bottom,0px))}#msg{position:fixed;top:0;right:0;bottom:0;left:0;display:none;align-items:center;justify-content:center;font-size:48px;font-weight:700;text-align:center;pointer-events:none;white-space:pre-line;line-height:1.3}#net{position:fixed;top:64px;left:0;right:0;text-align:center;font-size:12px;opacity:.7;pointer-events:none}#lobby{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:var(--bg);z-index:10}#lobby[hidden]{display:none}.card{width:min(360px,90vw);display:flex;flex-direction:column;gap:10px}.card h1{margin:0 0 8px;font-size:28px;text-align:center}.card hr{width:100%;border:0;border-top:1px solid var(--bar);margin:8px 0}.card label{font-size:13px;opacity:.8}.card input,.card button{font:inherit;padding:10px 12px;border-radius:8px;border:1px solid var(--bar);background:var(--bar);color:var(--fg)}.card input{text-transform:uppercase;letter-spacing:2px;text-align:center}.card button{cursor:pointer;background:#3c6cff;border-color:#3c6cff;font-weight:600}.card button:disabled{opacity:.5;cursor:default}#lobby-status{min-height:1.4em;font-size:13px;text-align:center;opacity:.85;margin:0}