:root{--bg:#f4f6fb;--nav:#163654;--nav2:#102b44;--card:#ffffff;--text:#0f172a;--muted:#64748b;--line:#e5e7eb;--blue:#1f4e79;--green:#22c55e;--orange:#f59e0b;--red:#ef4444}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.container{padding:24px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:0 8px 24px #0f172a0f}.btn{border:none;background:var(--blue);color:#fff;padding:10px 14px;border-radius:10px;cursor:pointer;font-size:14px}.btn.secondary{background:#e9eef6;color:#0b1b2d}.btn:disabled{opacity:.6;cursor:not-allowed}.grid4{display:grid;grid-template-columns:repeat(4,minmax(220px,1fr));gap:18px}@media(max-width:1100px){.grid4{grid-template-columns:repeat(2,minmax(220px,1fr))}}@media(max-width:680px){.grid4{grid-template-columns:1fr}}:root{--nav: #0b1220;--nav2: #0a1020;--muted: #64748b;--sidebarW: 280px}html,body{margin:0;padding:0;overflow-x:hidden}.shell{width:100%;min-height:100vh;background:#f3f6fb}.sidebar{position:fixed;top:0;left:0;width:var(--sidebarW);height:100vh;background:linear-gradient(180deg,var(--nav),var(--nav2));color:#fff;padding:22px;z-index:1000;transform:translate(0);transition:transform .22s ease}.shell.sb-closed .sidebar{transform:translate(calc(-1 * var(--sidebarW)))}.sidebarInner{height:100%;display:flex;flex-direction:column;min-height:0}.brand{display:flex;gap:12px;align-items:center;padding:10px 10px 18px}.brandIcon{width:46px;height:46px;border-radius:12px;background:#ffffff1f;display:flex;align-items:center;justify-content:center;font-weight:700}.brandTitle{font-weight:700;font-size:18px}.brandSub{font-size:12px;color:#ffffffbf;margin-top:2px}.nav{margin-top:10px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;min-height:0;padding-right:6px}.navItem{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:12px;color:#ffffffe0;cursor:pointer}.navItem:hover{background:#ffffff17}.navItem.active{background:#ffffff24;font-weight:600}.userBox{margin-top:auto;padding-top:16px;border-top:1px solid rgba(255,255,255,.18);display:flex;flex-direction:column;gap:12px}.userRow{display:flex;gap:10px;align-items:center}.avatar{width:40px;height:40px;border-radius:999px;background:#ffffff2e;display:flex;align-items:center;justify-content:center;font-weight:700}.userName{font-size:14px;font-weight:700}.userEmail{font-size:12px;color:#ffffffbf;margin-top:2px}.logout{display:flex;gap:8px;align-items:center;cursor:pointer}.main{margin-left:var(--sidebarW);min-width:0;width:calc(100% - var(--sidebarW));overflow-x:hidden;transition:margin-left .22s ease,width .22s ease}.shell.sb-closed .main{margin-left:0;width:100%}.topbar{display:flex;justify-content:space-between;align-items:center;padding:22px 24px 10px;gap:12px}.topbarLeft{display:flex;align-items:center;gap:14px}.pageTitle{font-size:28px;font-weight:800;margin:0}.pageSub{margin:6px 0 0;color:var(--muted)}.sbToggle{border:1px solid #e5e7eb;background:#fff;border-radius:12px;width:44px;height:44px;cursor:pointer;font-size:20px;font-weight:900;box-shadow:0 10px 22px #0206170d}.container{padding:0 24px 24px;min-width:0}.sbOverlay{display:none}@media(max-width:980px){.sidebar{transform:translate(calc(-1 * var(--sidebarW)))}.shell.sb-open .sidebar{transform:translate(0)}.main{margin-left:0;width:100%}.sbOverlay{display:block;position:fixed;inset:0;background:#0206178c;z-index:900;opacity:0;pointer-events:none;transition:.2s ease}.sbOverlay.show{opacity:1;pointer-events:auto}}