:root {
  --primary: #0d6efd;
  --secondary: #6c757d;
  --success: #198754;
  --danger: #dc3545;
  --warning: #ffc107;
  --info: #0dcaf0;
  --light: #f8f9fa;
  --dark: #212529;
  --sidebar-bg: #212529;
  --sidebar-text: #e9ecef;
  --sidebar-hover: #495057;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--light);
  color: #212529;
}

body.dark-mode {
  background-color: #1a1a1a;
  color: #e9ecef;
}

body.dark-mode .card {
  background-color: #2d2d2d;
  border-color: #444;
  color: #e9ecef;
}

body.dark-mode .table {
  color: #e9ecef;
  border-color: #444;
}

body.dark-mode .table thead th {
  border-color: #444;
  background-color: #1a1a1a;
}

body.dark-mode .form-control,
body.dark-mode .form-select {
  background-color: #2d2d2d;
  border-color: #444;
  color: #e9ecef;
}

body.dark-mode .form-control:focus,
body.dark-mode .form-select:focus {
  background-color: #2d2d2d;
  border-color: var(--primary);
  color: #e9ecef;
}

body.dark-mode .navbar {
  background-color: #1a1a1a !important;
  border-color: #444 !important;
}

body.dark-mode .sidebar {
  background-color: #1a1a1a;
  border-color: #444;
}

body.dark-mode .sidebar .nav-link {
  color: var(--sidebar-text);
}

body.dark-mode .sidebar .nav-link:hover {
  background-color: var(--sidebar-hover);
  color: #fff;
}

body.dark-mode .sidebar .nav-link.active {
  background-color: var(--primary);
  color: #fff;
}

body.dark-mode .text-muted {
  color: #999 !important;
}

body.dark-mode .dropdown-menu {
  background-color: #2d2d2d;
  border-color: #444;
}

body.dark-mode .dropdown-item {
  color: #e9ecef;
}

body.dark-mode .dropdown-item:hover {
  background-color: #444;
  color: #fff;
}

/* Layout */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: 250px;
  height: 100vh;
  background-color: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: 0;
  overflow-y: auto;
  z-index: 1000;
  border-right: 1px solid #444;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid #444;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff;
}

.sidebar .nav {
  padding: 1rem 0;
}

.sidebar .nav-link {
  color: var(--sidebar-text);
  padding: 0.75rem 1.5rem;
  /* display: flex; */
  align-items: center;
  gap: 0.75rem;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

.sidebar .nav-link:hover {
  background-color: var(--sidebar-hover);
  color: #fff;
  border-left-color: var(--primary);
}

.sidebar .nav-link.active {
  background-color: var(--primary);
  color: #fff;
  border-left-color: #fff;
}

.sidebar .nav-link i:last-child {
  margin-left: auto;
  transition: transform 0.3s ease;
}

.sidebar .nav-link[data-bs-toggle="collapse"][aria-expanded="true"] i:last-child {
  transform: rotate(180deg);
}

.main-content {
  margin-left: 250px;
  min-height: 100vh;
}

/* Responsive */
@media (max-width: 991.98px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
  }

  .sidebar.show {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }
}

/* Cards */
.card {
  border: 1px solid #dee2e6;
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.stat-card {
  border-left: 4px solid var(--primary);
}

.card-header {
  background-color: #f8f9fa;
  border-bottom: 1px solid #dee2e6;
  padding: 1rem 1.5rem;
}

body.dark-mode .card-header {
  background-color: #1a1a1a;
  border-color: #444;
}

/* Tables */
.table {
  margin-bottom: 0;
}

.table thead th {
  background-color: #f8f9fa;
  border-bottom: 2px solid #dee2e6;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

.table tbody tr:hover {
  background-color: #f8f9fa;
}

body.dark-mode .table tbody tr:hover {
  background-color: #2d2d2d;
}

/* Forms */
.form-control,
.form-select {
  border: 1px solid #dee2e6;
  border-radius: 0.375rem;
  transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Buttons */
.btn {
  border-radius: 0.375rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
}

.btn-primary:hover {
  background-color: #0b5ed7;
  border-color: #0b5ed7;
  transform: translateY(-2px);
  box-shadow: 0 0.5rem 1rem rgba(13, 110, 253, 0.3);
}

/* Badges */
.badge {
  padding: 0.35rem 0.65rem;
  font-weight: 500;
  font-size: 0.75rem;
}

/* Utilities */
.min-vh-100 {
  min-height: 100vh;
}

.text-balance {
  text-wrap: balance;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

body.dark-mode ::-webkit-scrollbar-track {
  background: #2d2d2d;
}

::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

body.dark-mode ::-webkit-scrollbar-thumb {
  background: #555;
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
  background: #777;
}