:root{--bg: #05070e;--panel: rgba(13, 18, 33, .82);--panel-border: rgba(126, 150, 214, .18);--text: #e9edfb;--muted: #93a1c4;--x: #ff4d6d;--o: #38d5ff;--accent: #7c8cff;--ok: #79f2a8;color-scheme:dark}*{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior:none}#viewport{position:fixed;inset:0}.cubic-canvas{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}.glass{background:var(--panel);border:1px solid var(--panel-border);border-radius:16px;backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);box-shadow:0 18px 50px #00000073}#hud{position:fixed;top:18px;left:18px;display:flex;flex-direction:column;gap:10px;pointer-events:none;z-index:5}#turn-card{display:flex;align-items:center;gap:12px;padding:12px 16px;min-width:240px}.dot{width:14px;height:14px;border-radius:50%;background:var(--x);box-shadow:0 0 16px currentColor;color:var(--x);transition:background .25s,color .25s}.dot.is-o{background:var(--o);color:var(--o)}.turn-text{display:flex;flex-direction:column;line-height:1.25}.turn-text strong{font-size:17px;letter-spacing:.01em}.turn-text span{font-size:12.5px;color:var(--muted)}.badge{margin-left:auto;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#08121f;background:var(--ok);border-radius:999px;padding:4px 9px;font-weight:700}#hint-card{display:flex;gap:14px;padding:9px 14px;font-size:12px;color:var(--muted);flex-wrap:wrap;max-width:420px}#hint-card b{color:var(--text);font-weight:600}#panel{position:fixed;top:18px;right:18px;bottom:18px;width:336px;padding:18px;display:flex;flex-direction:column;gap:16px;overflow-y:auto;overflow-x:hidden;z-index:6}.panel-head{display:flex;align-items:center;justify-content:space-between}.panel-head h1{margin:0;font-size:20px;letter-spacing:.32em;font-weight:700;background:linear-gradient(90deg,var(--x),var(--accent),var(--o));-webkit-background-clip:text;background-clip:text;color:transparent}.icon-button{width:30px;height:30px;border-radius:50%;border:1px solid var(--panel-border);background:#ffffff0a;color:var(--muted);font-size:15px;cursor:pointer}.icon-button:hover{color:var(--text);border-color:#a0b4f073}.section{display:flex;flex-direction:column;gap:10px}.section.grow{flex:1;min-height:0}.section-title{display:flex;align-items:center;justify-content:space-between;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}.muted{color:var(--muted)}.hint{margin:0;font-size:11.5px;line-height:1.5;color:var(--muted)}.segmented{display:flex;background:#ffffff0a;border:1px solid var(--panel-border);border-radius:11px;padding:3px;gap:3px}.segmented-button{flex:1;border:0;background:transparent;color:var(--muted);padding:8px 6px;font-size:12.5px;font-weight:600;border-radius:8px;cursor:pointer;font-family:inherit;transition:background .18s,color .18s}.segmented-button:hover{color:var(--text)}.segmented-button.is-active{background:linear-gradient(180deg,#7c8cff57,#7c8cff29);color:var(--text);box-shadow:inset 0 0 0 1px #96a5ff59}.segmented.small .segmented-button{padding:6px 4px;font-size:11.5px}.difficulty{display:flex;flex-direction:column;gap:6px}.difficulty .label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}.primary-button,.ghost-button,.text-button{font-family:inherit;cursor:pointer;border-radius:10px;font-weight:600;transition:transform .12s,background .18s,border-color .18s}.primary-button{border:0;padding:11px 14px;font-size:13.5px;color:#08101f;background:linear-gradient(180deg,#a9b6ff,#7c8cff)}.primary-button:hover{transform:translateY(-1px)}.ghost-button{border:1px solid var(--panel-border);background:#ffffff08;color:var(--text);padding:10px 14px;font-size:13px}.ghost-button:hover{border-color:#a0b4f073}.text-button{border:0;background:none;color:var(--accent);font-size:11.5px;padding:0;letter-spacing:.04em;text-transform:none}.text-button:hover{color:#b9c3ff}.actions{flex-direction:row;gap:8px}.actions>*{flex:1}.shortcut{margin:0;font-size:11px;text-align:center}kbd{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#ffffff12;border:1px solid var(--panel-border);border-radius:5px;padding:1px 5px;font-size:10.5px}.games-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.game-chip{position:relative;border:1px solid var(--panel-border);background:#ffffff08;border-radius:11px;padding:8px 6px 7px;display:flex;flex-direction:column;align-items:center;gap:3px;cursor:pointer;font-family:inherit;color:var(--muted);transition:transform .14s,border-color .18s,background .18s,color .18s}.game-chip:hover{transform:translateY(-1px);color:var(--text)}.game-chip .chip-name{font-size:12.5px;font-weight:700;letter-spacing:.06em;color:var(--text)}.game-chip .chip-sub{font-size:10px;color:var(--muted)}.game-chip .chip-dots{display:flex;gap:2px;margin-top:1px}.game-chip .chip-dots i{width:5px;height:5px;border-radius:50%;background:#ffffff24}.game-chip .chip-dots i.is-x{background:var(--x)}.game-chip .chip-dots i.is-o{background:var(--o)}.game-chip.is-active{border-color:#79f2a8a6;background:#79f2a817;box-shadow:0 0 0 1px #79f2a838,0 0 22px #79f2a81f}.game-chip.is-active .chip-sub{color:var(--ok)}.game-chip.is-next{border-color:#fff6}.game-chip.is-full .chip-name{opacity:.55}.game-chip.is-family-x{border-top-color:#ff9a63bf}.game-chip.is-family-y{border-top-color:#79f2a8bf}.game-chip.is-family-z{border-top-color:#8fa6ffbf}.move-list{list-style:none;margin:0;padding:0;overflow-y:auto;display:flex;flex-direction:column;gap:6px;font-size:12px;min-height:0}.move-list li{display:grid;grid-template-columns:22px 18px 1fr auto;align-items:center;gap:8px;padding:6px 8px;border-radius:9px;background:#ffffff09;border:1px solid rgba(255,255,255,.04)}.move-list .index{color:var(--muted);font-variant-numeric:tabular-nums;font-size:11px}.move-list .mark{font-weight:800;text-align:center}.move-list .mark.is-x{color:var(--x)}.move-list .mark.is-o{color:var(--o)}.move-list .where{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;color:var(--muted)}.move-list .locks{font-size:10.5px;color:var(--accent);white-space:nowrap}.move-list li.is-latest{border-color:#7c8cff80;background:#7c8cff1a}.move-list .empty{color:var(--muted);font-size:11.5px;padding:6px 2px}#status-banner{position:fixed;left:50%;bottom:26px;transform:translate(-50%);padding:12px 22px;font-size:14px;font-weight:600;letter-spacing:.02em;z-index:7;text-align:center}#hover-chip{position:fixed;left:50%;bottom:78px;transform:translate(-50%);padding:7px 14px;font-size:12px;color:var(--muted);z-index:6}#hover-chip b{color:var(--text)}#thinking{position:fixed;left:50%;top:22px;transform:translate(-50%);padding:9px 16px;font-size:12.5px;display:flex;align-items:center;gap:9px;z-index:7;color:var(--muted)}.pulse{width:9px;height:9px;border-radius:50%;background:var(--o);animation:pulse 1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.35;transform:scale(.8)}50%{opacity:1;transform:scale(1.15)}}#overlay,#help{position:fixed;inset:0;display:grid;place-items:center;background:#04060c9e;backdrop-filter:blur(6px);z-index:20;padding:20px}.overlay-card{padding:26px 30px;max-width:460px;text-align:center;animation:rise .25s ease}@keyframes rise{0%{opacity:0;transform:translateY(10px)}}.overlay-kicker{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}.overlay-card h2{margin:10px 0 6px;font-size:30px}.overlay-card p{margin:0 0 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