:root {
  --bg: #f4f6fb;          
  --bg2: #ffffff;        
  --card: #ffffff;      
  --card2: #f1f5f9;      
  --border: #e2e8f0;
  --border2: #cbd5e1;
  --text: #1e293b;
  --muted: #64748b;
  --muted2: #94a3b8;
  --accent: #3b82f6;
  --accent2: #2563eb;
  --accent-soft: #eff6ff; 
  --green: #16a34a;
  --red: #dc2626;
  --amber: #d97706;
  --purple: #7c3aed;
  --teal: #0d9488;
  --pink: #db2777;
  --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5; }
a { text-decoration: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 14px; }
table { border-collapse: collapse; width: 100%; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--bg2); border-right: 1px solid var(--border); display: flex; flex-direction: column; position: fixed; top: 0; left: 0; height: 100vh; overflow-y: auto; z-index: 100; }
.main-content { margin-left: 240px; flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.topbar { background: var(--bg2); border-bottom: 1px solid var(--border); padding: 0 24px; height: 60px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 50; box-shadow: var(--shadow); }
.page-content { padding: 28px 28px; flex: 1; }

/* Sidebar */
.sidebar-brand { padding: 20px 20px 16px; border-bottom: 1px solid var(--border); }
.sidebar-brand .logo { font-size: 28px; font-weight: 800; color: var(--accent); letter-spacing: -1px; }
.sidebar-brand .company { font-size: 11px; color: var(--muted); margin-top: 2px; }
.sidebar-nav { padding: 12px 0; flex: 1; }
.nav-section { padding: 8px 16px 4px; font-size: 10px; font-weight: 700; color: var(--muted2); text-transform: uppercase; letter-spacing: .8px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 9px 20px; color: var(--muted); font-size: 13.5px; cursor: pointer; transition: .15s; border-left: 3px solid transparent; }
.nav-item:hover { background: var(--card2); color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: var(--accent2); border-left-color: var(--accent); font-weight: 600; }
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar-footer { padding: 16px 20px; border-top: 1px solid var(--border); }
.user-info { display: flex; align-items: center; gap: 10px; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--accent); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; color: #fff; flex-shrink: 0; }
.user-name { font-size: 13px; font-weight: 600; }
.user-role { font-size: 11px; color: var(--muted); text-transform: capitalize; }

/* Topbar */
.page-title { font-size: 18px; font-weight: 700; color: var(--text); }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.btn { padding: 8px 16px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); color: var(--text); cursor: pointer; font-size: 13px; font-weight: 500; transition: .15s; display: inline-flex; align-items: center; gap: 6px; }
.btn:hover { background: var(--card2); border-color: var(--border2); }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent2); border-color: var(--accent2); }
.btn-danger { background: #dc26261a; color: var(--red); border-color: #dc262633; }
.btn-danger:hover { background: #dc262626; }
.btn-success { background: #16a34a1a; color: var(--green); border-color: #16a34a33; }
.btn-success:hover { background: #16a34a26; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* Cards */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 20px; box-shadow: var(--shadow); }
.card-title { font-size: 15px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; justify-content: space-between; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; box-shadow: var(--shadow); }
.stat-label { font-size: 12px; color: var(--muted); font-weight: 500; margin-bottom: 6px; }
.stat-value { font-size: 28px; font-weight: 800; line-height: 1; }
.stat-sub { font-size: 12px; color: var(--muted); margin-top: 6px; }
.stat-card.blue .stat-value { color: var(--accent); }
.stat-card.green .stat-value { color: var(--green); }
.stat-card.red .stat-value { color: var(--red); }
.stat-card.amber .stat-value { color: var(--amber); }
.stat-card.purple .stat-value { color: var(--purple); }
.stat-card.teal .stat-value { color: var(--teal); }

/* Tables */
.table-wrap { overflow-x: auto; }
th { background: #f1f5f9; padding: 10px 14px; text-align: left; font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; border-bottom: 1px solid var(--border); }
td { padding: 11px 14px; border-bottom: 1px solid var(--border); font-size: 13px; vertical-align: middle; color: var(--text); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-green { background: #16a34a1f; color: var(--green); }
.badge-red { background: #dc26261f; color: var(--red); }
.badge-amber { background: #d977061f; color: var(--amber); }
.badge-blue { background: #3b82f61f; color: var(--accent2); }
.badge-purple { background: #7c3aed1f; color: var(--purple); }
.badge-teal { background: #0d94881f; color: var(--teal); }
.badge-gray { background: #64748b1f; color: var(--muted); }

/* Forms */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: 12px; color: var(--muted); font-weight: 600; }
.form-control { padding: 9px 12px; background: #fff; border: 1px solid var(--border2); border-radius: 8px; color: var(--text); outline: none; transition: .15s; width: 100%; }
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px #3b82f622; }
.form-control::placeholder { color: var(--muted2); }
.form-control.full { grid-column: 1 / -1; }

/* Modal */
.modal-bg { position: fixed; inset: 0; background: rgba(15, 23, 42, .45); z-index: 200; display: none; align-items: center; justify-content: center; }
.modal-bg.open { display: flex; }
.modal { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 28px; width: 90%; max-width: 640px; max-height: 90vh; overflow-y: auto; box-shadow: 0 20px 50px rgba(15, 23, 42, .2); }
.modal-title { font-size: 17px; font-weight: 700; margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center; }
.modal-close { cursor: pointer; color: var(--muted); font-size: 22px; background: none; border: none; }
.modal-close:hover { color: var(--text); }
.modal-footer { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); }

/* Alert */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 13px; }
.alert-success { background: #16a34a15; border: 1px solid #16a34a33; color: var(--green); }
.alert-danger { background: #dc262615; border: 1px solid #dc262633; color: var(--red); }
.alert-info { background: #3b82f615; border: 1px solid #3b82f633; color: var(--accent2); }

/* Misc */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.text-muted { color: var(--muted); }
.text-right { text-align: right; }
.fw-bold { font-weight: 700; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.progress-bar { height: 6px; background: var(--border); border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 4px; background: var(--accent); }
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .main-content { margin-left: 0; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}