:root{--bg:#0d0d0f;--bg-2:#141418;--card:#1a1a1e;--card-hover:#212127;--border:#2a2a31;--text:#f4f4f6;--text-dim:#9a9aa6;--accent:#ffd60a;--green:#30d158;--blue:#0a84ff;--red:#ff453a;--shadow:0 8px 30px rgba(0,0,0,.4);--radius:18px}:root[data-theme=light]{--bg:#f2f2f7;--bg-2:#e9e9ef;--card:#fff;--card-hover:#f7f7fa;--border:#e2e2e8;--text:#1a1a1e;--text-dim:#6a6a76;--accent:#f0a500;--green:#28b14a;--shadow:0 8px 24px rgba(0,0,0,.08)}*{box-sizing:border-box;margin:0;padding:0}body,html{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,system-ui,sans-serif;-webkit-font-smoothing:antialiased;transition:background .3s ease,color .3s ease}.app{max-width:1280px;margin:0 auto;padding:20px 24px 60px}.topbar{justify-content:space-between;padding:14px 0 22px}.brand,.topbar{display:flex;align-items:center}.brand{gap:12px}.brand 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