/* Main CSS for Admin Panel */
:root {
  --primary-color: #3f51b5;
  --primary-light: #757de8;
  --primary-dark: #002984;
  --secondary-color: #ff4081;
  --secondary-light: #ff79b0;
  --secondary-dark: #c60055;
  --text-on-primary: #ffffff;
  --text-on-secondary: #ffffff;
  --background-color: #f5f5f5;
  --card-color: #ffffff;
  --border-color: #e0e0e0;
  --success-color: #4caf50;
  --warning-color: #ff9800;
  --error-color: #f44336;
  --info-color: #2196f3;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Roboto', 'Segoe UI', Arial, sans-serif;
  background-color: var(--background-color);
  color: #333;
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: var(--primary-color);
}

a:hover {
  text-decoration: underline;
}

.container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 250px;
  background-color: var(--primary-dark);
  color: var(--text-on-primary);
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  transition: all 0.3s;
  z-index: 1000;
}

.sidebar-header {
  padding: 20px;
  background-color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-header h3 {
  margin: 0;
  font-size: 1.5rem;
}

.sidebar-menu {
  padding: 0;
  list-style: none;
}

.sidebar-menu li {
  padding: 10px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-menu li a {
  color: var(--text-on-primary);
  display: flex;
  align-items: center;
  text-decoration: none;
}

.sidebar-menu li a i {
  margin-right: 10px;
  width: 20px;
  text-align: center;
}

.sidebar-menu li:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.sidebar-menu li.active {
  background-color: var(--primary-color);
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: 250px;
  padding: 20px;
  transition: all 0.3s;
}

.main-header {
  background-color: var(--card-color);
  padding: 15px 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
  border-radius: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.main-header h1 {
  margin: 0;
  font-size: 1.8rem;
  color: var(--primary-dark);
}

.user-info {
  display: flex;
  align-items: center;
}

.user-info img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  margin-right: 10px;
}

.user-info .dropdown {
  position: relative;
  display: inline-block;
}

.user-info .dropdown-content {
  display: none;
  position: absolute;
  right: 0;
  background-color: var(--card-color);
  min-width: 160px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  z-index: 1;
  border-radius: 4px;
}

.user-info .dropdown-content a {
  color: #333;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}

.user-info .dropdown-content a:hover {
  background-color: var(--background-color);
}

.user-info .dropdown:hover .dropdown-content {
  display: block;
}

/* Cards */
.card {
  background-color: var(--card-color);
  border-radius: 4px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
  overflow: hidden;
}

.card-header {
  padding: 15px 20px;
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.02);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h2 {
  margin: 0;
  font-size: 1.2rem;
}

.card-body {
  padding: 20px;
}

.card-footer {
  padding: 15px 20px;
  border-top: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.02);
}

/* Dashboard Stats */
.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

.stat-card {
  background-color: var(--card-color);
  border-radius: 4px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.stat-card .stat-icon {
  font-size: 2.5rem;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.stat-card .stat-value {
  font-size: 1.8rem;
  font-weight: bold;
  margin-bottom: 5px;
}

.stat-card .stat-label {
  color: #777;
  font-size: 0.9rem;
}

/* Tables */
.table-responsive {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

table th, table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

table th {
  background-color: rgba(0, 0, 0, 0.02);
  font-weight: 600;
}

table tr:hover {
  background-color: rgba(0, 0, 0, 0.02);
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(63, 81, 181, 0.2);
}

.form-select {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  background-color: white;
}

.form-check {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
}

.form-check-input {
  margin-right: 10px;
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 400;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: 0.25rem;
  transition: all 0.15s ease-in-out;
  cursor: pointer;
}

.btn:focus, .btn:hover {
  text-decoration: none;
}

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

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

.btn-secondary {
  color: var(--text-on-secondary);
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
}

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

.btn-danger {
  color: white;
  background-color: var(--error-color);
  border-color: var(--error-color);
}

.btn-warning {
  color: #212529;
  background-color: var(--warning-color);
  border-color: var(--warning-color);
}

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

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  line-height: 1.5;
  border-radius: 0.2rem;
}

.btn-lg {
  padding: 0.5rem 1rem;
  font-size: 1.25rem;
  line-height: 1.5;
  border-radius: 0.3rem;
}

/* Alerts */
.alert {
  padding: 15px;
  margin-bottom: 20px;
  border: 1px solid transparent;
  border-radius: 4px;
}

.alert-success {
  color: #155724;
  background-color: #d4edda;
  border-color: #c3e6cb;
}

.alert-warning {
  color: #856404;
  background-color: #fff3cd;
  border-color: #ffeeba;
}

.alert-danger {
  color: #721c24;
  background-color: #f8d7da;
  border-color: #f5c6cb;
}

.alert-info {
  color: #0c5460;
  background-color: #d1ecf1;
  border-color: #bee5eb;
}

/* Pagination */
.pagination {
  display: flex;
  padding-left: 0;
  list-style: none;
  border-radius: 0.25rem;
}

.pagination li {
  margin-right: 5px;
}

.pagination li a, .pagination li span {
  position: relative;
  display: block;
  padding: 0.5rem 0.75rem;
  margin-left: -1px;
  line-height: 1.25;
  color: var(--primary-color);
  background-color: #fff;
  border: 1px solid var(--border-color);
}

.pagination li.active a {
  z-index: 1;
  color: #fff;
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.pagination li a:hover {
  color: var(--primary-dark);
  text-decoration: none;
  background-color: #e9ecef;
  border-color: var(--border-color);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25em 0.4em;
  font-size: 75%;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 0.25rem;
}

.badge-primary {
  color: #fff;
  background-color: var(--primary-color);
}

.badge-secondary {
  color: #fff;
  background-color: var(--secondary-color);
}

.badge-success {
  color: #fff;
  background-color: var(--success-color);
}

.badge-danger {
  color: #fff;
  background-color: var(--error-color);
}

.badge-warning {
  color: #212529;
  background-color: var(--warning-color);
}

.badge-info {
  color: #fff;
  background-color: var(--info-color);
}

/* Utilities */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-left {
  text-align: left;
}

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.ml-1 { margin-left: 0.25rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-3 { margin-left: 1rem; }
.ml-4 { margin-left: 1.5rem; }
.ml-5 { margin-left: 3rem; }

.mr-1 { margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 1rem; }
.mr-4 { margin-right: 1.5rem; }
.mr-5 { margin-right: 3rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 3rem; }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    width: 0;
    padding: 0;
  }
  
  .sidebar.active {
    width: 250px;
    padding: 0;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .main-content.active {
    margin-left: 250px;
  }
  
  .stats-container {
    grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
  }
}

/* Login Page */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: var(--background-color);
}

.login-card {
  width: 100%;
  max-width: 400px;
  background-color: var(--card-color);
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.login-header {
  background-color: var(--primary-color);
  color: var(--text-on-primary);
  padding: 20px;
  text-align: center;
}

.login-body {
  padding: 30px;
}

.login-footer {
  padding: 15px;
  text-align: center;
  border-top: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.02);
}

/* Charts */
.chart-container {
  position: relative;
  height: 300px;
  margin-bottom: 20px;
}

/* Loading Spinner */
.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}