:root{
  --bg:#f4f7fb;
  --panel:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e5e7eb;
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --danger:#dc2626;
  --success:#16a34a;
  --warning:#f59e0b;
  --sidebar:#0f172a;
  --sidebar-2:#111827;
  --shadow:0 14px 40px rgba(15,23,42,.08);
  --radius:18px;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,Segoe UI,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
}
a{color:inherit}

/* LOGIN */
.login-wrap{
  min-height:100vh;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  background:linear-gradient(135deg,#0f172a 0%,#1e3a8a 48%,#2563eb 100%);
}
.login-hero{
  padding:70px;
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.login-hero .logo-box{
  width:68px;height:68px;border-radius:22px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.14);
  font-size:34px;margin-bottom:24px;
  box-shadow:0 20px 60px rgba(0,0,0,.18);
}
.login-hero h1{font-size:44px;line-height:1.1;margin:0 0 16px;font-weight:900;letter-spacing:-1px}
.login-hero p{max-width:560px;font-size:17px;line-height:1.7;color:#dbeafe;margin:0}
.login-panel{display:flex;align-items:center;justify-content:center;padding:28px;background:rgba(255,255,255,.08);backdrop-filter:blur(8px)}
.card{
  background:var(--panel);
  border:1px solid rgba(226,232,240,.9);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:24px;
}
.login-card{width:430px;padding:34px;border-radius:24px}
.brand{font-size:26px;font-weight:900;margin-bottom:8px;letter-spacing:-.3px}
.muted{color:var(--muted);font-size:14px;line-height:1.45}
.default-note{margin-top:18px;background:#f8fafc;border:1px dashed #cbd5e1;padding:10px 12px;border-radius:12px;color:#475569;font-size:13px}

/* FORM */
.form-group{margin:14px 0}
.form-group label{display:block;font-size:13px;font-weight:800;margin-bottom:8px;color:#334155}
input,select,textarea{
  width:100%;padding:12px 13px;border:1px solid #cbd5e1;border-radius:12px;
  font-size:14px;background:#fff;color:#0f172a;outline:none;transition:.18s ease;
}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
textarea{min-height:96px;resize:vertical}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:12px;padding:11px 16px;font-weight:800;text-decoration:none;cursor:pointer;
  background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.20);transition:.18s ease;
}
.btn:hover{transform:translateY(-1px);background:var(--primary-dark)}
.btn.secondary{background:#64748b;box-shadow:none}.btn.secondary:hover{background:#475569}
.btn.danger{background:var(--danger);box-shadow:none}.btn.danger:hover{background:#b91c1c}
.btn.success{background:var(--success);box-shadow:none}.btn.success:hover{background:#15803d}
.btn.small{padding:7px 10px;font-size:12px;border-radius:10px}
.alert{padding:12px 14px;border-radius:14px;margin:14px 0;font-weight:700;font-size:14px}
.alert.error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}
.alert.success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}

/* ADMIN LAYOUT */
.layout{display:flex;min-height:100vh}
.sidebar{
  width:280px;background:linear-gradient(180deg,var(--sidebar),var(--sidebar-2));color:#fff;
  padding:22px 16px;position:fixed;top:0;bottom:0;left:0;border-right:1px solid rgba(255,255,255,.08);
}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:10px 10px 22px;margin-bottom:8px;border-bottom:1px solid rgba(255,255,255,.10)}
.sidebar-logo{width:42px;height:42px;border-radius:14px;background:#2563eb;display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 10px 24px rgba(37,99,235,.35)}
.sidebar h2{font-size:19px;margin:0;font-weight:900;letter-spacing:-.2px}
.sidebar small{display:block;color:#93c5fd;margin-top:3px;font-size:12px}
.sidebar-nav{margin-top:18px}
.sidebar a{
  display:flex;align-items:center;gap:10px;color:#cbd5e1;text-decoration:none;
  padding:12px 13px;border-radius:13px;margin-bottom:7px;font-weight:750;font-size:14px;transition:.18s ease;
}
.sidebar a:hover,.sidebar a.active{background:rgba(37,99,235,.18);color:#fff}
.sidebar a.logout{margin-top:18px;color:#fecaca;background:rgba(220,38,38,.10)}
.content{margin-left:280px;width:calc(100% - 280px);padding:28px 30px 40px}
.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:22px}
h1{margin:0 0 5px;font-size:30px;letter-spacing:-.6px}
h3{margin:0 0 14px;font-size:18px}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat{background:var(--panel);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);border:1px solid #e2e8f0;position:relative;overflow:hidden}
.stat:after{content:"";position:absolute;width:90px;height:90px;border-radius:999px;background:rgba(37,99,235,.08);right:-28px;top:-28px}
.stat .num{font-size:34px;font-weight:900;margin-top:6px;letter-spacing:-.7px}
.table-card{background:var(--panel);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid #e2e8f0}
table{width:100%;border-collapse:collapse}
th,td{padding:14px 16px;border-bottom:1px solid #eef2f7;text-align:left;font-size:14px;vertical-align:top}
th{background:#f8fafc;font-size:12px;text-transform:uppercase;color:#475569;letter-spacing:.5px;font-weight:900}
tr:hover td{background:#fafafa}
.actions{display:flex;gap:7px;flex-wrap:wrap}
.toolbar{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:14px}
.badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:900;text-transform:capitalize}
.badge.active{background:#dcfce7;color:#166534}.badge.inactive{background:#fee2e2;color:#991b1b}
.card + .table-card{margin-top:18px}

@media(max-width:980px){
  .login-wrap{grid-template-columns:1fr}.login-hero{display:none}.login-panel{min-height:100vh}
  .sidebar{position:relative;width:100%;height:auto}.layout{display:block}.content{margin-left:0;width:100%;padding:20px}.grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){.grid{grid-template-columns:1fr}.toolbar,.topbar{display:block}.btn{margin-top:6px}.login-card{width:100%}}