/* Analytics Dashboard Styles */
:root {
  /* Dark Theme Colors */
  --bg-primary: #0f1419;
  --bg-secondary: #1a202c;
  --bg-card: #2d3748;
  --text-primary: #f7fafc;
  --text-secondary: #a0aec0;
  --text-muted: #718096;
  --border-color: #4a5568;
  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;
}

.light-theme {
  --bg-primary: #ffffff;
  --bg-secondary: #f7fafc;
  --bg-card: #ffffff;
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --border-color: #e2e8f0;
  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: all 0.3s ease;
}

.hidden {
  display: none !important;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  text-align: center;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 16px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Login Section */
.login-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.login-container {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  width: 100%;
  max-width: 400px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.logo i {
  color: var(--accent-primary);
  font-size: 2rem;
}

.login-form .form-group {
  margin-bottom: 1.5rem;
}

.login-form label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.login-form input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.login-form input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.login-btn {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--accent-primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.login-btn:hover {
  background: color-mix(in srgb, var(--accent-primary) 90%, black);
  transform: translateY(-1px);
}

.login-footer {
  text-align: center;
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

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

.dashboard-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.sidebar-toggle:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logout-btn {
  background: var(--danger);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.logout-btn:hover {
  background: color-mix(in srgb, var(--danger) 90%, black);
}

/* Main Content */
.dashboard-main {
  display: flex;
}

.sidebar {
  width: 260px;
  background: var(--bg-card);
  border-right: 1px solid var(--border-color);
  min-height: calc(100vh - 80px);
  transition: all 0.3s ease;
  position: sticky;
  top: 80px;
}

.sidebar.collapsed {
  width: 70px;
}

.sidebar-nav ul {
  list-style: none;
  padding: 1rem 0;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

.nav-link:hover,
.nav-link.active {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-left-color: var(--accent-primary);
}

.sidebar.collapsed .nav-link span {
  display: none;
}

.content-area {
  flex: 1;
  padding: 2rem;
  background: var(--bg-primary);
}

/* Filters */
.global-filters {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.filter-group label {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.875rem;
}

.filter-select,
.filter-input {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  min-width: 150px;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-btn {
  background: var(--accent-primary);
  color: white;
}

.filter-btn:hover {
  background: color-mix(in srgb, var(--accent-primary) 90%, black);
}

.filter-btn.secondary {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.filter-btn.secondary:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

/* Section Content */
.dashboard-section-content {
  display: none;
}

.dashboard-section-content.active {
  display: block;
}

.section-header {
  margin-bottom: 2rem;
}

.section-header h3 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--text-secondary);
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all 0.3s ease;
}

.metric-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  font-size: 1.25rem;
}

.metric-content h4 {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.metric-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.metric-trend {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.metric-trend.trend-up {
  color: var(--success);
}

.metric-trend.trend-down {
  color: var(--danger);
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
}

.chart-container h4 {
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

.chart-container canvas {
  max-height: 300px;
}

/* Tables */
.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.table-container h4 {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

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

.data-table th,
.data-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.875rem;
}

.data-table td {
  color: var(--text-primary);
}

.data-table tr:hover {
  background: var(--bg-secondary);
}

/* Health Grid */
.health-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.health-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
}

.health-card h4 {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.health-status {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding: 0.5rem;
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

.health-btn {
  background: var(--info);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
}

.health-btn:hover {
  background: color-mix(in srgb, var(--info) 90%, black);
}

.health-details {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
}

.health-details pre {
  background: var(--bg-secondary);
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.875rem;
  color: var(--text-primary);
}

/* Notifications */
.notification-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.notification {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem;
  min-width: 300px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateX(100%);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.notification-content {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.notification-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.notification-close:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.notification-success {
  border-left: 4px solid var(--success);
}

.notification-success .fa-check-circle {
  color: var(--success);
}

.notification-error {
  border-left: 4px solid var(--danger);
}

.notification-error .fa-exclamation-circle {
  color: var(--danger);
}

.notification-warning {
  border-left: 4px solid var(--warning);
}

.notification-warning .fa-exclamation-triangle {
  color: var(--warning);
}

.notification-info {
  border-left: 4px solid var(--info);
}

.notification-info .fa-info-circle {
  color: var(--info);
}

/* Empty States */
.empty-state {
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--text-muted);
  font-size: 1.125rem;
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  z-index: 10;
}

/* Section Loading */
.section-loader {
  position: absolute;
  top: 10px;
  right: 10px;
  display: none;
  z-index: 20;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .dashboard-header {
    padding: 1rem;
  }
  
  .content-area {
    padding: 1rem;
  }
  
  .global-filters {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-group {
    width: 100%;
  }
  
  .metrics-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
  }
  
  .charts-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 200;
    transform: translateX(-100%);
    width: 260px;
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .dashboard-main {
    flex-direction: column;
  }
  
  .content-area {
    padding: 1rem 0.5rem;
  }
  
  .login-container {
    margin: 1rem;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  
  .user-menu {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .header-app-select {
    min-width: 120px;
  }
}