/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #f5f7fa;
  color: #1a1a2e;
  line-height: 1.6;
}

.hidden {
  display: none !important;
}

/* Login Screen */
.login-screen {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  padding: 20px;
}

.login-card {
  background: white;
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h1 {
  font-size: 24px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 8px;
}

.login-header p {
  color: #666;
  font-size: 14px;
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: #333;
  margin-bottom: 8px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.input, .select, .textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  background: #fff;
  transition: all 0.2s;
}

.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: #007AFF;
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.textarea {
  min-height: 100px;
  resize: vertical;
}

.error-text {
  color: #F44336;
  font-size: 14px;
  margin-top: 12px;
  text-align: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: #007AFF;
  color: white;
}

.btn-primary:hover {
  background: #0056b3;
}

.btn-secondary {
  background: #f0f0f0;
  color: #333;
}

.btn-secondary:hover {
  background: #e0e0e0;
}

.btn-success {
  background: #4CAF50;
  color: white;
}

.btn-success:hover {
  background: #388E3C;
}

.btn-danger {
  background: #F44336;
  color: white;
}

.btn-danger:hover {
  background: #D32F2F;
}

.btn-warning {
  background: #FF9800;
  color: white;
}

.btn-warning:hover {
  background: #F57C00;
}

.btn-full {
  width: 100%;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* Dashboard Layout */
.dashboard {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: #1a1a2e;
  color: white;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
}

.sidebar-header {
  padding: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
  font-size: 20px;
  font-weight: 700;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 0;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 12px 24px;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: all 0.2s;
  font-size: 14px;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

.nav-item.active {
  background: rgba(0, 122, 255, 0.2);
  color: #007AFF;
  border-right: 3px solid #007AFF;
}

.nav-icon {
  width: 20px;
  height: 20px;
  margin-right: 12px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: 260px;
  min-height: 100vh;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  background: white;
  border-bottom: 1px solid #e0e0e0;
  position: sticky;
  top: 0;
  z-index: 50;
}

.top-bar h1 {
  font-size: 24px;
  font-weight: 600;
}

.admin-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-info span {
  font-size: 14px;
  color: #666;
}

.admin-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #007AFF;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.content-area {
  padding: 32px;
}

/* Section Header */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.filters .select,
.filters .input {
  width: auto;
  min-width: 150px;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.stat-card {
  background: white;
  border-radius: 12px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg {
  width: 28px;
  height: 28px;
}

.stat-icon.blue { background: #e3f2fd; color: #1976d2; }
.stat-icon.green { background: #e8f5e9; color: #388e3c; }
.stat-icon.purple { background: #f3e5f5; color: #7b1fa2; }
.stat-icon.orange { background: #fff3e0; color: #f57c00; }
.stat-icon.red { background: #ffebee; color: #d32f2f; }
.stat-icon.teal { background: #e0f2f1; color: #00796b; }

.stat-info h3 {
  font-size: 28px;
  font-weight: 700;
  color: #1a1a2e;
}

.stat-info p {
  font-size: 14px;
  color: #666;
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
}

/* Cards */
.card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid #f0f0f0;
}

.card-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.card-body {
  padding: 24px;
}

.link {
  color: #007AFF;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.link:hover {
  text-decoration: underline;
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #f0f0f0;
  font-size: 14px;
}

.table th {
  font-weight: 600;
  color: #666;
  background: #fafafa;
}

.table tr:hover {
  background: #f9f9f9;
}

.table .text-center {
  text-align: center;
}

.table .actions {
  display: flex;
  gap: 8px;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-pending { background: #fff3e0; color: #E65100; }
.badge-approved, .badge-active, .badge-completed { background: #e8f5e9; color: #2E7D32; }
.badge-rejected, .badge-cancelled { background: #ffebee; color: #C62828; }
.badge-suspended, .badge-expired { background: #f5f5f5; color: #616161; }
.badge-platinum { background: #e8eaf6; color: #3949ab; }
.badge-gold { background: #fff8e1; color: #f9a825; }
.badge-silver { background: #eceff1; color: #546e7a; }
.badge-bronze { background: #efebe9; color: #6d4c41; }

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
}

.pagination button {
  padding: 8px 16px;
  border: 1px solid #e0e0e0;
  background: white;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}

.pagination button:hover {
  background: #f5f5f5;
}

.pagination button.active {
  background: #007AFF;
  color: white;
  border-color: #007AFF;
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Settings Grid */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
}

.maintenance-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
}

.modal-content {
  position: relative;
  background: white;
  border-radius: 16px;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid #f0f0f0;
}

.modal-header h3 {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #666;
  padding: 0;
  line-height: 1;
}

.modal-close:hover {
  color: #333;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  background: white;
  border-radius: 8px;
  padding: 16px 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 300px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.success {
  border-left: 4px solid #4CAF50;
}

.toast.error {
  border-left: 4px solid #F44336;
}

.toast.warning {
  border-left: 4px solid #FF9800;
}

.toast.info {
  border-left: 4px solid #2196F3;
}

.toast-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.toast-icon svg {
  width: 20px;
  height: 20px;
}

.toast.success .toast-icon { color: #4CAF50; }
.toast.error .toast-icon { color: #F44336; }
.toast.warning .toast-icon { color: #FF9800; }
.toast.info .toast-icon { color: #2196F3; }

.toast-message {
  flex: 1;
  font-size: 14px;
}

/* User Row */
.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #e0e0e0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  color: #666;
}

.user-name {
  font-weight: 500;
}

/* Responsive */
@media (max-width: 1024px) {
  .sidebar {
    width: 80px;
  }

  .sidebar-header h2,
  .nav-item span:not(.nav-icon) {
    display: none;
  }

  .nav-item {
    justify-content: center;
    padding: 16px;
  }

  .nav-icon {
    margin-right: 0;
  }

  .main-content {
    margin-left: 80px;
  }
}

@media (max-width: 768px) {
  .dashboard-grid,
  .settings-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .content-area {
    padding: 16px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Chart Placeholder */
.chart-placeholder {
  min-height: 200px;
}

/* Loading Spinner */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #f0f0f0;
  border-top-color: #007AFF;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Action Buttons in Table */
.table .btn {
  padding: 4px 8px;
  font-size: 12px;
}

.action-buttons {
  display: flex;
  gap: 6px;
}

/* Message Thread View */
.thread-view {
  max-width: 100%;
}

.thread-info .detail-row {
  margin-bottom: 8px;
}

.messages-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.message-item {
  background: white;
  border-radius: 8px;
  padding: 12px 16px;
  border-left: 3px solid #007AFF;
}

.message-item.unread {
  border-left-color: #4CAF50;
  background: #f8fff8;
}

.message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.message-header strong {
  color: #333;
  font-size: 14px;
}

.message-time {
  color: #999;
  font-size: 12px;
}

.message-content {
  color: #555;
  font-size: 14px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.message-attachments {
  margin-top: 8px;
  color: #666;
}

/* Additional badge styles */
.badge-info { background: #e3f2fd; color: #1565c0; }
.badge-open { background: #fff3e0; color: #E65100; }
.badge-reviewing { background: #e3f2fd; color: #1565c0; }
.badge-resolved { background: #e8f5e9; color: #2E7D32; }
.badge-dismissed { background: #f5f5f5; color: #616161; }
.badge-closed { background: #eceff1; color: #546e7a; }