:root{--bg:#f4f7fb;--card:#fff;--text:#0f172a;--muted:#64748b;--line:#e5e7eb;--primary:#2563eb;--primary2:#1d4ed8;--side:#0f172a;--side2:#1e293b;--green:#16a34a;--red:#dc2626}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:280px;min-height:100vh;background:linear-gradient(180deg,var(--side),var(--side2));color:#fff;padding:24px;position:fixed;left:0;top:0;bottom:0}.brand{display:flex;gap:12px;align-items:center;margin-bottom:34px}.brand-mark{width:42px;height:42px;border-radius:14px;background:#38bdf8;color:#082f49;display:flex;align-items:center;justify-content:center;font-weight:900}.brand strong{display:block;font-size:24px}.brand span{display:block;color:#cbd5e1;font-size:13px;margin-top:3px}.nav{display:flex;flex-direction:column;gap:8px}.nav a{color:#e2e8f0;padding:13px 14px;border-radius:12px;font-weight:600}.nav a:hover,.nav a.active{background:rgba(255,255,255,.12);color:#fff}.main{margin-left:280px;width:calc(100% - 280px);padding:28px}.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:22px}.topbar h1{margin:0;font-size:30px}.topbar p{margin:6px 0 0;color:var(--muted)}.user-pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 16px;font-weight:700}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 30px rgba(15,23,42,.06);padding:22px;margin-bottom:20px}.stat{padding:22px}.stat span{color:var(--muted);font-size:14px}.stat strong{display:block;font-size:32px;margin-top:8px}.toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;background:var(--primary);color:#fff;padding:11px 15px;font-weight:700;cursor:pointer}.btn:hover{background:var(--primary2)}.btn.secondary{background:#e2e8f0;color:#0f172a}.btn.danger{background:var(--red)}.btn.green{background:var(--green)}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{font-size:13px;color:#475569;background:#f8fafc}tr:last-child td{border-bottom:0}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.field label{display:block;font-weight:700;margin-bottom:7px}.field input,.field select,.field textarea{width:100%;border:1px solid #cbd5e1;border-radius:12px;padding:12px;background:#fff;font-size:15px}.field textarea{min-height:120px}.full{grid-column:1/-1}.alert{background:#ecfdf5;border:1px solid #bbf7d0;color:#166534;border-radius:14px;padding:13px 16px;margin-bottom:18px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#1e3a8a)}.login-card{width:420px;max-width:calc(100% - 28px);background:#fff;border-radius:24px;padding:32px;box-shadow:0 24px 80px rgba(0,0,0,.25)}.login-card h1{margin:0 0 8px;font-size:32px}.login-card p{color:var(--muted);margin:0 0 22px}.login-card .field{margin-bottom:14px}.remember{display:flex;gap:9px;align-items:center;margin:10px 0 18px;color:#475569}.error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca;border-radius:12px;padding:12px;margin-bottom:15px}.setup-body{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#f4f7fb}.setup-card{max-width:620px;background:#fff;border-radius:18px;padding:28px;border:1px solid var(--line);box-shadow:0 8px 30px rgba(15,23,42,.08)}@media(max-width:900px){.sidebar{position:static;width:100%;min-height:auto}.app-shell{display:block}.main{margin-left:0;width:100%;padding:18px}.grid,.form-grid{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}}