:root {
  --brand-900: #0f172a;
  --brand-700: #1e293b;
  --brand-500: #334155;
  --primary-600: #2563eb;
  --primary-500: #3b82f6;
  --accent-500: #06b6d4;
  --success-500: #10b981;
  --warning-500: #f59e0b;
  --danger-500: #ef4444;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --border-soft: #e2e8f0;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --radius: 12px;
  --shadow-soft: 0 8px 24px rgba(2, 6, 23, 0.08);
}

body,
.content-wrapper {
  background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
  color: var(--text-main);
}

.main-header .navbar {
  background: rgba(255, 255, 255, 0.9) !important;
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--border-soft);
}

.main-sidebar,
.skin-blue .main-sidebar {
  background: linear-gradient(180deg, #0b1220 0%, #111827 100%) !important;
}

.skin-blue .sidebar-menu > li > a {
  color: #dbeafe;
  border-left: 3px solid transparent;
}

.skin-blue .sidebar-menu > li > a:hover,
.skin-blue .sidebar-menu > li.active > a {
  background: rgba(59, 130, 246, 0.15) !important;
  color: #ffffff !important;
  border-left-color: #60a5fa;
}

.content-header > h1 {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.box {
  border: 1px solid var(--border-soft) !important;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  background: var(--surface);
}

.box.box-primary {
  border-top: 3px solid var(--primary-500) !important;
}

.box-header.with-border {
  border-bottom: 1px solid var(--border-soft);
}

.table {
  background: #fff;
}

.table > thead > tr > th {
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.03em;
}

.table > tbody > tr:hover {
  background: #f8fbff;
}

.form-control,
.select2-selection {
  border-radius: 6px !important;
  border: 1px solid #cbd5e1 !important;
  box-shadow: none !important;
}

.form-control:focus {
  border-color: #93c5fd !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15) !important;
}

.btn {
  border-radius: 10px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
  border-color: transparent;
}

.btn-success {
  background: linear-gradient(135deg, #059669, var(--success-500));
  border-color: transparent;
}

.small-box {
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}