:root{--bg:#f4f7fb;--surface:#fff;--nav:#15233b;--nav2:#1d2f4e;--primary:#1769e0;--primary2:#0f56bd;--text:#172033;--muted:#6d7890;--border:#e4e9f1;--success:#198754;--danger:#d63f4a;--warning:#d99000;--shadow:0 10px 30px rgba(24,42,75,.08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.app-shell{display:grid;grid-template-columns:250px 1fr;min-height:100vh}.sidebar{background:linear-gradient(180deg,var(--nav),#101a2b);color:#dbe6f7;padding:18px 14px;position:sticky;top:0;height:100vh}.logo{display:flex;align-items:center;gap:12px;padding:8px 10px 24px}.logo-badge,.brand-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#1c78f2,#33a3ff);display:grid;place-items:center;color:#fff;font-weight:800;box-shadow:0 8px 18px rgba(23,105,224,.3)}.logo strong{display:block;color:#fff}.logo 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