:root{
  --primary:#2563eb; --primary-dark:#1e40af; --bg:#f1f5f9;
  --sidebar:#0f172a; --sidebar-hover:#1e293b; --text:#334155;
  --green:#16a34a; --red:#dc2626; --amber:#d97706; --border:#e2e8f0;
}
*{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}
a{text-decoration:none;color:inherit}

/* ===== LOGIN ===== */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1e40af,#2563eb,#3b82f6)}
.login-box{background:#fff;padding:40px;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.25);width:100%;max-width:400px}
.login-box h1{font-size:22px;color:var(--primary-dark);margin-bottom:4px;text-align:center}
.login-box .sub{text-align:center;color:#94a3b8;margin-bottom:24px;font-size:13px}
.tab-btns{display:flex;gap:8px;margin-bottom:20px}
.tab-btns button{flex:1;padding:10px;border:1px solid var(--border);background:#f8fafc;border-radius:8px;cursor:pointer;font-size:13px;transition:.2s}
.tab-btns button.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ===== FORM ===== */
.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;font-weight:600;font-size:13px;color:#475569}
.form-control{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;transition:.2s}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
select.form-control{background:#fff}

.btn{display:inline-block;padding:10px 18px;border:none;border-radius:8px;cursor:pointer;font-size:14px;font-weight:600;transition:.2s;text-align:center}
.btn-primary{background:var(--primary);color:#fff;width:100%}
.btn-primary:hover{background:var(--primary-dark)}
.btn-sm{padding:6px 12px;font-size:12px;width:auto}
.btn-success{background:var(--green);color:#fff}
.btn-danger{background:var(--red);color:#fff}
.btn-warning{background:var(--amber);color:#fff}
.btn-secondary{background:#64748b;color:#fff}

/* ===== LAYOUT ===== */
.layout{display:flex;min-height:100vh}
.sidebar{width:250px;background:var(--sidebar);color:#cbd5e1;position:fixed;height:100vh;overflow-y:auto;transition:.3s}
.sidebar .brand{padding:20px;font-size:16px;font-weight:700;color:#fff;border-bottom:1px solid #1e293b;display:flex;align-items:center;gap:10px}
.sidebar .role-badge{font-size:11px;padding:2px 8px;background:var(--primary);border-radius:12px;display:inline-block;margin:10px 20px;color:#fff}
.sidebar nav a{display:flex;align-items:center;gap:12px;padding:12px 20px;color:#cbd5e1;font-size:13px;transition:.2s}
.sidebar nav a:hover,.sidebar nav a.active{background:var(--sidebar-hover);color:#fff;border-left:3px solid var(--primary)}
.sidebar nav .section{padding:14px 20px 6px;font-size:11px;text-transform:uppercase;color:#64748b;letter-spacing:1px}

.main{margin-left:250px;flex:1;display:flex;flex-direction:column}
.topbar{background:#fff;padding:14px 24px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 1px 3px rgba(0,0,0,.06);position:sticky;top:0;z-index:10}
.topbar h2{font-size:18px;color:#1e293b}
.topbar .user-info{display:flex;align-items:center;gap:12px;font-size:13px}
.topbar .avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.content{padding:24px;flex:1}

/* ===== CARDS ===== */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 1px 3px rgba(0,0,0,.06);border-left:4px solid var(--primary)}
.stat-card.green{border-color:var(--green)}
.stat-card.red{border-color:var(--red)}
.stat-card.amber{border-color:var(--amber)}
.stat-card .label{font-size:12px;color:#94a3b8;text-transform:uppercase;letter-spacing:.5px}
.stat-card .value{font-size:24px;font-weight:700;color:#1e293b;margin-top:6px}
.stat-card .sub{font-size:12px;color:#94a3b8;margin-top:4px}

.card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 1px 3px rgba(0,0,0,.06);margin-bottom:20px}
.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.card-header h3{font-size:16px;color:#1e293b}

/* ===== TABLE ===== */
.table-wrap{overflow-x:auto}
table.data{width:100%;border-collapse:collapse}
table.data th{background:#f8fafc;text-align:left;padding:11px 12px;font-size:12px;text-transform:uppercase;color:#64748b;border-bottom:2px solid var(--border)}
table.data td{padding:11px 12px;border-bottom:1px solid var(--border);font-size:13px}
table.data tr:hover{background:#f8fafc}

.badge{padding:3px 10px;border-radius:12px;font-size:11px;font-weight:600}
.badge-green{background:#dcfce7;color:#166534}
.badge-red{background:#fee2e2;color:#991b1b}
.badge-amber{background:#fef3c7;color:#92400e}
.badge-blue{background:#dbeafe;color:#1e40af}

/* ===== ALERT ===== */
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:13px}
.alert-success{background:#dcfce7;color:#166534;border:1px solid #86efac}
.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}
.alert-info{background:#dbeafe;color:#1e40af;border:1px solid #93c5fd}

/* ===== MISC ===== */
.row{display:flex;gap:16px;flex-wrap:wrap}
.col{flex:1;min-width:200px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px;align-items:center}
.toolbar .spacer{flex:1}
.text-green{color:var(--green);font-weight:600}
.text-red{color:var(--red);font-weight:600}
.text-amber{color:var(--amber);font-weight:600}
.text-right{text-align:right}
.text-center{text-align:center}
.mt-2{margin-top:16px}.mb-2{margin-bottom:16px}

@media(max-width:768px){
  .sidebar{width:0;overflow:hidden}
  .main{margin-left:0}
  .sidebar.open{width:250px}
}

/* ===== PRINT ===== */
@media print{
  .sidebar,.topbar,.toolbar,.no-print{display:none!important}
  .main{margin-left:0}
  .content{padding:0}
  body{background:#fff;font-size:12px}
  .card{box-shadow:none;border:none}
}
.print-header{text-align:center;border-bottom:3px double #000;padding-bottom:12px;margin-bottom:20px;display:none}
@media print{.print-header{display:block}}