.ck-arena{--a-bg:#0a0e17;--a-bg2:#0d1220;--a-panel:#14171f;--a-panel2:#181b24;--a-line:#2a2f3d;--a-line2:#1c2130;--a-ink:#e9ecf3;--a-mute:#8b93a7;--a-gold:#e8b33a;--a-gold2:#d9b45a;--a-steel:#8e9bbb;--a-red:#d24b45;position:relative;min-height:100vh;min-height:100dvh;background:var(--a-bg);color:var(--a-ink);font-family:IBM Plex Sans,system-ui,sans-serif;padding:68px 0 96px;overflow-x:hidden;-webkit-font-smoothing:antialiased}.ck-arena *,.ck-arena :after,.ck-arena :before{box-sizing:border-box}.ck-arena a{color:inherit;text-decoration:none}.ck-arena button{font-family:inherit;cursor:pointer}.ck-arena h1,.ck-arena h2,.ck-arena p{margin:0}.ck-arena .a-wrap{max-width:560px;margin:0 auto}.ck-arena .a-pad{padding:0 16px}.ck-arena .a-cond{font-family:Barlow Condensed,IBM Plex Sans,sans-serif}.ck-arena .a-mono{font-family:IBM Plex Mono,ui-monospace,monospace}.ck-arena .a-eyebrow{font-size:11px;letter-spacing:2px;color:var(--a-gold2);text-transform:uppercase;font-weight:700}.ck-arena .a-mute{color:var(--a-mute)}.ck-arena .a-gold{color:var(--a-gold)}.ck-arena .a-red{color:var(--a-red)}.ck-arena :focus-visible{outline:2px solid var(--a-gold);outline-offset:2px}.ck-arena .a-loading{padding:40px 16px;text-align:center;color:var(--a-mute);font-size:14px}.ck-arena .a-skel{background:linear-gradient(90deg,#14171f,#1b2030,#14171f);background-size:200% 100%;animation:a-shine 1.4s linear infinite;border-radius:12px}@keyframes a-shine{to{background-position:-200% 0}}.ck-arena .a-hero{padding:18px 16px 14px;background:var(--a-bg2);border-bottom:1px solid var(--a-line2)}.ck-arena .a-hero h1{font-size:26px;font-weight:700;letter-spacing:.5px;margin:4px 0 12px}.ck-arena .a-quick{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px}.ck-arena .a-qbtn{height:38px;border-radius:19px;border:1px solid var(--a-line);background:#12161f;color:var(--a-steel);display:flex;align-items:center;justify-content:center;font-size:15px;padding:0}.ck-arena .a-qbtn svg{width:17px;height:17px}.ck-arena .a-qbtn.is-flame{color:var(--a-red)}.ck-arena .a-qbtn.is-gold{border-color:var(--a-gold);background:#1f1a0e;color:var(--a-gold)}.ck-arena .a-qbtn[aria-expanded=true]{border-color:var(--a-gold2);color:var(--a-gold)}.ck-arena .a-pop{margin-top:10px;padding:12px 14px;background:var(--a-panel);border:1px solid var(--a-line);border-radius:12px;font-size:13px;line-height:1.55;color:var(--a-ink);animation:a-rise .18s ease-out}.ck-arena .a-pop b{color:var(--a-gold)}.ck-arena .a-pop ul{margin:6px 0 0;padding:0;list-style:none;display:grid;gap:4px}.ck-arena .a-pop li{display:flex;justify-content:space-between;gap:8px}@keyframes a-rise{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}.ck-arena .a-main{padding:18px 16px 24px;display:flex;flex-direction:column;gap:12px}.ck-arena .a-front{display:flex;align-items:center;gap:16px;padding:18px 16px;background:var(--a-panel);border:1px solid var(--a-line);border-radius:12px}.ck-arena .a-front 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#2f3545;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;flex:none;background:transparent;color:var(--a-ink)}.ck-arena .a-crumb{font-size:11px;letter-spacing:1.5px;color:var(--a-mute);font-weight:600;text-transform:uppercase}.ck-arena .a-head h1{font-size:26px;font-weight:700;letter-spacing:.5px;line-height:1.1;text-transform:uppercase;overflow-wrap:anywhere}.ck-arena .a-body{background:#11141c;padding:18px 16px 24px;display:flex;flex-direction:column;gap:10px;min-height:60vh}.ck-arena .a-label{font-size:11px;letter-spacing:2px;color:var(--a-mute);font-weight:700;text-transform:uppercase}.ck-arena .a-sub{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 16px;background:var(--a-panel2);border:1px solid #2f3545;border-radius:10px;font-weight:700;font-size:16px;letter-spacing:.3px}.ck-arena .a-sub small{color:var(--a-mute);font-weight:400;font-size:12px}.ck-arena .a-tabs3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid #2f3545;background:#161922;margin-top:16px}.ck-arena .a-tabs3 button{height:38px;border:0;border-right:1px solid #2f3545;background:transparent;color:var(--a-mute);font-size:11px;font-weight:700;letter-spacing:1.5px}.ck-arena .a-tabs3 button:last-child{border-right:0}.ck-arena .a-tabs3 button.on{background:#23241c;color:var(--a-gold)}.ck-arena .a-prow{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:600}.ck-arena .a-prow>span:first-child{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ck-arena .a-prow .trk{width:96px;height:4px;background:#262b38;border-radius:2px;overflow:hidden;flex:none}.ck-arena .a-prow .trk i{display:block;height:4px;background:var(--a-steel)}.ck-arena .a-prow .val{width:44px;text-align:right;color:var(--a-gold);flex:none}.ck-arena .a-empty{padding:14px;border:1px dashed #2f3545;border-radius:10px;font-size:13px;color:var(--a-mute);line-height:1.5}.ck-arena .a-legend{padding:14px 16px;background:#11141c;border-bottom:1px solid var(--a-line2);display:flex;flex-direction:column;gap:6px}.ck-arena .a-legend .keys{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:11px;letter-spacing:1px;color:var(--a-mute);font-weight:600}.ck-arena .a-chap{margin:12px -4px 6px;padding:6px 8px;background:#191c25;border:1px solid #262a36;font-size:11px;letter-spacing:1.5px;color:var(--a-gold);font-weight:700;text-transform:uppercase}.ck-arena .a-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 10px;min-height:40px;margin-bottom:6px;background:var(--a-panel2);border:1px solid var(--a-line);border-radius:6px}.ck-arena .a-row>span:first-child{font-size:14px;font-weight:600;min-width:0;overflow-wrap:anywhere}.ck-arena .a-boxes{display:flex;gap:5px;flex:none}.ck-arena .a-box{width:28px;height:28px;border-radius:5px;border:1px solid #353b4c;background:transparent;color:var(--a-mute);font-size:10px;font-weight:700;display:flex;align-items:center;justify-content:center;padding:0;transition:transform .12s}.ck-arena .a-box:active{transform:scale(.92)}.ck-arena .a-box.done{background:var(--a-steel);border-color:var(--a-steel);color:#0a0e17}.ck-arena .a-box.retake{background:var(--a-red);border-color:var(--a-red);color:#1a0a0a}.ck-arena .a-box svg{width:14px;height:14px}.ck-arena-bar{position:fixed;left:0;right:0;bottom:0;z-index:40;height:72px;background:#080b13;border-top:1px solid var(--a-line2);padding-bottom:env(safe-area-inset-bottom)}.ck-arena-bar .in{position:relative;max-width:560px;margin:0 auto;height:72px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));align-items:center}.ck-arena-bar a{color:#8b93a7;text-decoration:none;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:12px;font-weight:700;letter-spacing:1.5px;height:72px;justify-content:center;transition:color .2s;font-family:IBM Plex Sans,system-ui,sans-serif}.ck-arena-bar a.on{color:#e8b33a}.ck-arena-bar svg{width:22px;height:22px}.ck-arena-bar .ind{position:absolute;top:0;left:0;width:25%;height:2px;display:flex;justify-content:center;transition:transform .28s cubic-bezier(.3,.8,.3,1),opacity .2s;pointer-events:none}.ck-arena-bar .ind i{display:block;width:34px;height:2px;border-radius:2px;background:#e8b33a}@media (prefers-reduced-motion:reduce){.ck-arena *,.ck-arena-bar .ind{transition:none!important;animation:none!important}}.ck-arena .a-board{padding:18px 16px 24px;display:flex;flex-direction:column;gap:14px}.ck-arena .a-board h1{font-size:28px;font-weight:700;letter-spacing:.5px;margin-top:2px}.ck-arena .a-btn-s{height:32px;padding:0 12px;border-radius:6px;border:1px solid #2f3545;background:transparent;color:#a7b0c5;font-size:12px;font-weight:600}.ck-arena .a-two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.ck-arena 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