/* Base Styles */
:root {
  --primary-color: #0d6efd;
  --secondary-color: #6c757d;
  --success-color: #198754;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --light-color: #f8f9fa;
  --dark-color: #212529;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

/* Utility Classes */
.min-vh-80 {
  min-height: 80vh;
}

.shadow-sm {
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

/* Navbar Customization */
.navbar {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* Card Customization */
.card {
  border: none;
  transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

/* Button Customization */
.btn {
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border-radius: 0.375rem;
  transition: all 0.2s ease-in-out;
}

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

.btn-primary:hover {
  background-color: #0b5ed7;
  border-color: #0a58ca;
  transform: translateY(-1px);
}

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

/* Alert Customization */
.alert {
  border: none;
  border-left: 4px solid transparent;
}

.alert-dismissible .btn-close {
  padding: 1rem;
}

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

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

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

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

/* Animation */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.3s ease-out forwards;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .display-4 {
    font-size: 2.5rem;
  }
  
  .lead {
    font-size: 1.1rem;
  }
}

/* Custom Components */
.feature-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 0.75rem;
  background-color: rgba(13, 110, 253, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--primary-color);
  font-size: 2rem;
}

/* Activity Feed */
.activity-item {
  padding: 0.75rem 0;
  border-bottom: 1px solid #eee;
}

.activity-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

/* Loading Spinner */
.loading-spinner {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

/* Print Styles */
@media print {
  .no-print {
    display: none !important;
  }
  
  .card {
    border: 1px solid #dee2e6 !important;
    box-shadow: none !important;
  }
}