:root{--bg-0: #050a12;--bg-1: #0a1324;--panel: rgba(12, 21, 39, .86);--panel-soft: rgba(17, 30, 55, .82);--stroke: rgba(138, 180, 248, .24);--ink: #f4f7ff;--muted: #b4c2dd;--accent: #ffb703;--accent-2: #65d6ce;--danger: #ff6b6b;--ok: #22c55e;--font-ui: "Trebuchet MS", "Verdana", "Segoe UI", sans-serif}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(circle at 12% 18%,rgba(39,87,167,.3),transparent 34%),radial-gradient(circle at 88% 12%,rgba(241,117,5,.22),transparent 30%),linear-gradient(150deg,var(--bg-1),var(--bg-0));color:var(--ink);font-family:var(--font-ui)}#app{min-height:100vh;padding:18px}.shell{max-width:1460px;margin:0 auto;display:grid;gap:12px}.top-logo{display:grid;justify-items:center;padding-top:4px}.masthead{display:flex;justify-content:space-between;gap:12px;padding:16px 18px;border:1px solid var(--stroke);border-radius:16px;background:linear-gradient(145deg,#0c1b32eb,#081224e0);box-shadow:0 18px 42px #00000061}.eyebrow{margin:0 0 6px;font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-2)}.masthead h1{margin:0;font-size:clamp(1.3rem,2.1vw,2rem)}.logo{display:block;width:min(420px,62vw);max-width:100%;height:auto;margin:0}.subtitle{margin:6px 0 0;max-width:760px;color:var(--muted)}.meta{min-width:230px;display:grid;justify-items:end;gap:6px}#connection-badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;border:1px solid rgba(255,107,107,.45);color:var(--danger);font-size:.78rem;font-weight:700;letter-spacing:.08em}#connection-badge.online{border-color:#22c55e80;color:var(--ok)}.meta p{margin:0;text-align:right;max-width:360px;color:var(--muted);font-size:.83rem}.notice{margin:0;padding:10px 12px;border:1px solid var(--stroke);border-radius:12px;background:#0c182abd;color:#dce7ff}.panel{display:none;gap:12px;padding:14px;border:1px solid var(--stroke);border-radius:14px;background:var(--panel)}.panel.visible{display:grid}.panel h2,.panel h3{margin:0}.grid.two{display:grid;gap:10px;grid-template-columns:repeat(2,minmax(0,1fr))}label{display:grid;gap:4px;font-size:.83rem;color:var(--muted)}input,button{border:1px solid rgba(151,174,218,.32);border-radius:10px;background:#080f1ceb;color:var(--ink);padding:9px 10px;font-size:.9rem;font-family:inherit}button{background:linear-gradient(145deg,#294a7eeb,#1a3054eb);cursor:pointer;font-weight:600}button:hover{border-color:#ffc449d1}button:disabled{cursor:not-allowed;opacity:.6}button.ghost{background:#12223cd1}.actions{display:flex;flex-wrap:wrap;gap:8px;align-items:end}.actions.disabled{opacity:.65}.hint{margin:0;color:var(--muted);font-size:.82rem}.player-list{display:grid;gap:6px}.player-row{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 10px;border-radius:10px;background:var(--panel-soft)}.player-swatch{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px;box-shadow:0 0 0 1px #ffffff52}.tag{margin-left:6px;padding:2px 6px;border-radius:999px;font-size:.7rem;border:1px solid rgba(101,214,206,.5);color:var(--accent-2)}.tag.me{border-color:#ffb70385;color:var(--accent)}.empty{margin:0;color:var(--muted)}.game-layout{display:none;grid-template-columns:minmax(0,1fr) 340px;gap:12px}.game-layout.visible{display:grid}.arena{position:relative;display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:16 / 9;max-height:74vh;border:1px solid var(--stroke);border-radius:16px;overflow:hidden;background:#020617;box-shadow:0 18px 36px #00000059}.arena canvas{display:block;width:100%;height:auto;max-height:100%}.hud{display:grid;align-content:start;gap:8px;padding:12px;border:1px solid var(--stroke);border-radius:14px;background:var(--panel)}.hud h2{margin:0;font-size:2rem;color:var(--accent)}.hud p{margin:0}.upgrade-grid{display:grid;gap:8px;grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.scoreboard{display:none;position:absolute;inset:0;padding:16px;border:0;border-radius:0;background:#030812e6;overflow:auto;z-index:30}.scoreboard.visible{display:block}.scoreboard h3{margin:0 0 8px}table{width:100%;border-collapse:collapse;font-size:.86rem}th,td{padding:7px 8px;border-bottom:1px solid rgba(156,184,233,.25);text-align:left}th{color:#c7d8fb;font-size:.72rem;text-transform:uppercase;letter-spacing:.05em}.mine{background:#65d6ce1f}.end-table{max-height:45vh;overflow:auto}@media(max-width:1080px){#app{padding:10px}.masthead{flex-direction:column}.meta{justify-items:start}.meta p{text-align:left}.grid.two,.game-layout.visible{grid-template-columns:1fr}.arena{max-height:56vh}}