body.arena{--a-ink: #0e1419;--a-ink-2: #151d24;--a-ink-3: #1c262e;--a-line: #2a3741;--a-paper: #f4f6f2;--a-mute: #9aa9b3;--a-ember: #ff6a3c;--a-ember-dim: #ff8b66;--a-ember-soft: rgba(255, 106, 60, .14);--a-teal: #2fc4c9;--a-gold: #f2c14e;--a-disp: var(--font-display);--a-ui: var(--font-display);--a-r-card: 16px;--a-r-btn: 12px;--bg: var(--a-ink);--bg-subtle: var(--a-ink-2);--surface: var(--a-ink-2);--surface-raised: var(--a-ink-3);--border: var(--a-line);--border-strong: #3d4d59;--text-strong: #ffffff;--text: var(--a-paper);--text-muted: var(--a-mute);--text-inverse: var(--a-ink);--brand-50: rgba(255, 106, 60, .06);--brand-100: rgba(255, 106, 60, .13);--brand-200: rgba(255, 106, 60, .3);--brand-400: #ff9a76;--brand-500: #ff7d54;--brand-600: #ff6a3c;--brand-700: #e85527;--brand-800: #c74318;--brand-900: #a23410;--brand: var(--brand-600);--brand-hover: #ff855f;--brand-active: var(--brand-700);--brand-subtle: var(--brand-100);--brand-ring: rgba(255, 106, 60, .35);--brand-text: #ffa184;--on-brand: #16100c;--success: #34d399;--success-strong: #6ee7b7;--success-l: rgba(52, 211, 153, .13);--warning: #f2c14e;--warning-strong: #f7d47a;--warning-l: rgba(242, 193, 78, .13);--danger: #ff6b6b;--danger-strong: #ff9d9d;--danger-l: rgba(255, 107, 107, .13);--info: #38bdf8;--info-strong: #7dd3fc;--info-l: rgba(56, 189, 248, .13);--e-1: 0 1px 2px rgba(0, 0, 0, .5);--e-2: 0 2px 4px rgba(0, 0, 0, .45), 0 4px 12px rgba(0, 0, 0, .5);--e-3: 0 4px 8px rgba(0, 0, 0, .5), 0 12px 28px rgba(0, 0, 0, .55);--e-4: 0 8px 16px rgba(0, 0, 0, .5), 0 24px 56px rgba(0, 0, 0, .6);background:var(--bg);color:var(--text);min-height:100vh}html:has(body.arena){background:#0e1419;color-scheme:dark}body.arena .card{background:#fff;color:#101820;box-shadow:0 10px 24px #00000080}body.arena .card.red{color:#d92d20}body.arena .rc-qr,body.arena .share-qr{background:#fff}