:root{--brand:#0047bb;--brand-dark:#003690;--brand-soft:#e3ebfa;--background:#fff;--surface:#f5f7fa;--card:#fff;--text:#0b1220;--text-muted:#5b6472;--border:#e4e8ee;--success:#1a9f5c;--danger:#d92d20;--notice-bg:#fef3c7;--notice-text:#92400e;--tier-blue:#0047bb;--tier-gold:#b8860b;--tier-black:#111318;--shadow:0 1px 2px #0b12200f, 0 4px 12px #0b12200a;--radius:12px}@media (prefers-color-scheme:dark){:root{--brand:#5b8def;--brand-dark:#0047bb;--brand-soft:#1b2740;--background:#0b0f14;--surface:#171d25;--card:#171d25;--text:#f2f4f7;--text-muted:#9aa4b2;--border:#2a323c;--success:#34d399;--danger:#f87171;--notice-bg:#3a2f12;--notice-text:#fcd34d;--tier-blue:#5b8def;--tier-gold:#b8860b;--tier-black:#2b2f36;--shadow:none}}*{box-sizing:border-box}html,body{background:var(--background);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;padding:0;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica 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