:root{color-scheme:dark;font-family:Inter,system-ui,sans-serif;background:#080b11;color:#edf3ff}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 70% 5%,#14364b66,transparent 48%)}main{max-width:1080px;margin:auto;padding:30px 24px}header,.heading,.hud,footer{display:flex;justify-content:space-between;align-items:center;gap:24px}header{margin-bottom:66px}.brand{text-decoration:none;color:inherit;font-weight:800;letter-spacing:3px;display:flex;align-items:center;gap:12px}.brand img{width:40px}.brand small{color:#87a9c4;font-size:10px}.eyebrow{font-size:11px;letter-spacing:3px;color:#8caabc}h1{font-size:clamp(44px,8vw,80px);line-height:1.02;letter-spacing:-3px;margin:20px 0 35px}h1 span{color:#839aae}h2{font-size:28px;margin:0 0 8px}p{color:#a6b8ca;line-height:1.65}button,select{border:1px solid #354657;border-radius:10px;background:#14202b;color:#e9f3ff;padding:12px 18px;font:600 14px system-ui;cursor:pointer}button:hover{background:#23374a}button:focus-visible,canvas:focus-visible,a:focus-visible{outline:2px solid #a6ddff;outline-offset:4px}button:disabled{opacity:.45;cursor:default}nav{display:flex;gap:12px;margin-bottom:32px}nav button[aria-pressed=true]{background:#d8e8f4;color:#111d2c}section{border:1px solid #2a3b4c;border-radius:24px;background:#0c121bcc;padding:26px}.heading p{max-width:650px;font-size:14px}.badge{font-size:9px;letter-spacing:2px;color:#9dc9e6;border:1px solid #354958;padding:12px;border-radius:30px;white-space:nowrap}.hud{font-size:12px;margin:18px 0;color:#94afc8}.hud b{color:#fff;font-size:20px;margin-left:8px}.canvas-shell{position:relative;border:1px solid #273c52;border-radius:18px;overflow:hidden;background:#080f1b}canvas{width:100%;display:block;touch-action:none}.run-buttons{position:absolute;top:16px;right:16px;display:flex;gap:8px}.touch-controls{display:flex;justify-content:center;gap:10px;margin-top:16px}.help{font-size:12px}.board{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:420px;margin:22px auto}.board button{aspect-ratio:1;font-size:clamp(28px,7vw,56px);border-radius:16px;background:linear-gradient(140deg,#1a2c3d,#0b1420);transition:transform .2s,box-shadow .2s}.board button[data-mark=X]{color:#bce8ff}.board button[data-mark=O]{color:#d3bbff}.board button.winner{box-shadow:inset 0 0 25px #5bddbf50;border-color:#95e7d1;transform:scale(1.03)}footer{margin-top:28px;color:#7492ab;font-size:12px}a{color:#c8e6ff}[hidden]{display:none!important}@media(max-width:650px){main{padding:20px 12px}header{margin-bottom:40px}.heading{display:block}.badge{display:inline-block}section{padding:16px}.hud{flex-wrap:wrap;gap:10px}.run-buttons{top:8px;right:8px}.run-buttons button{padding:8px}.touch-controls button{padding:12px}.hud span:last-child{width:100%}footer{flex-direction:column;align-items:flex-start}.brand small{display:none}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Jarvis 1.5 arcade: dedicated pages and a silver player archive. */
:root{background:#080a0d;color:#f2f3f5}body{background:radial-gradient(ellipse at 65% -10%,#48566035,transparent 58%)}main{max-width:1400px}header{margin-bottom:52px;border-bottom:1px solid #2a3038;padding-bottom:22px}.header-actions{display:flex;gap:22px;align-items:center}h1{margin-bottom:14px}.title-dot{color:#e9c66c}.game-subtitle{margin:0 0 32px;font-size:20px}.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}.game-layout section,.leader-panel{background:linear-gradient(145deg,#14181d,#090c10);border:1px solid #303943;border-radius:20px;padding:22px}.leader-panel h2{font-size:23px}.leader-panel .eyebrow{font-size:8px;letter-spacing:2px}.leader-panel .heading{gap:8px}input{display:block;border:1px solid #515b66;background:#10151b;color:#fff;font:600 16px system-ui;border-radius:10px;padding:13px 16px;width:100%;margin-top:8px}input:focus-visible{outline:2px solid #cddbe6;outline-offset:3px}.player-profile{display:flex;align-items:center;gap:28px}.player-profile label{font-size:12px;font-weight:600;min-width:280px}.player-profile p{max-width:420px;font-size:13px}.archive-status{min-height:24px;font-size:13px;color:#b7cbdc}.coin-hud,.coin-hud b{color:#f4d382}.hud{margin-top:0;flex-wrap:wrap;gap:14px}.hud span:last-child{font-size:11px;color:#a5b6c5}.run-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}.primary{background:linear-gradient(135deg,#f4f6f8,#9ba9b6);color:#11151b;border-color:#d8e1eb}.primary:hover{background:#e4edf4}#scores{padding:0;list-style:none;margin:20px 0}#scores li{display:grid;grid-template-columns:24px minmax(0,1fr) auto;gap:10px;padding:14px 0;border-bottom:1px solid #28313a;font-size:13px;align-items:center}#scores li span:nth-child(2){overflow-wrap:anywhere}#scores li>span:first-child{color:#869bab;font-size:11px}#scores li:first-child>span:first-child{color:#f2ce7a}#scores li.your-score{color:#c4f4e5}#scores li.empty-board{display:block;color:#a5b4c5;line-height:1.7}.board-tabs{margin:20px 0 0;gap:6px}.board-tabs button{padding:8px 14px;font-size:12px}.board-tabs button[aria-pressed=true]{background:#d9e0e7;color:#13171b}.board{max-width:390px}.board button:disabled{opacity:1}.board button[data-mark=""]:disabled{opacity:.5}footer{padding:20px 0}.touch-controls button{min-height:44px}.help{line-height:1.7}.board button{color:#fff}button{min-height:42px}
@media(max-width:1000px){.game-layout{grid-template-columns:1fr}.leader-panel{margin-top:4px}.player-profile{align-items:flex-start}.hud span:last-child{width:auto}}@media(max-width:600px){.player-profile{display:block}.player-profile label{min-width:0}.header-actions{gap:10px;font-size:12px}.brand{font-size:14px;letter-spacing:2px}.game-layout section,.leader-panel{padding:14px}h1{font-size:48px;letter-spacing:-2px}.game-subtitle{font-size:16px}.hud b{font-size:18px}.hud{font-size:11px;gap:10px}main{padding:20px 12px}.header-actions button{padding:10px}.touch-controls{gap:6px}.touch-controls button{flex:1;padding:10px 6px}}