:root{--bg:#f6f7fb;--surface:#ffffff;--surface-2:#eef0f7;--border:#e3e5f0;--text:#1b1c2e;--muted:#6a6c87;--accent:#32819f;--accent-2:#ff4d97;--basic:#2bb673;--intermediate:#f4a417;--advanced:#ef5350;--tier-1:#2bb673;--tier-2:#22a2c4;--tier-3:#f4a417;--tier-4:#ef5350;--tier-5:#a855f7;--header-bg:rgba(246,247,251,0.8);--shadow:0 1px 3px rgba(20,20,50,0.06),0 6px 18px rgba(20,20,50,0.05);--radius:12px;--connector:#8b8fb5}[data-theme=dark]{--bg:#0f1020;--surface:#1a1b35;--surface-2:#24264a;--border:#34376b;--text:#e9e9f4;--muted:#a3a4c4;--accent:#317d9a;--accent-2:#ff5ca8;--basic:#3ddc97;--intermediate:#ffc857;--advanced:#ff6b6b;--tier-1:#3ddc97;--tier-2:#4fc9e8;--tier-3:#ffc857;--tier-4:#ff6b6b;--tier-5:#c084fc;--header-bg:rgba(15,16,32,0.85);--shadow:none;--connector:#6f73a8}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe 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var(--border)}}.admin-group-head{font-size:.82rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.admin-group-sep{margin:32px 0;border:0;border-top:1px solid var(--border)}.btn.danger{color:var(--advanced);border-color:var(--border)}.btn.danger:hover:not(:disabled){border-color:var(--advanced)}