SUST/sustApp/admin-frontend/src/App.css

/* Modern Admin Dashboard Styles */

:root {
  --primary-color: #27ae60;
  --secondary-color: #f39c12;
  --danger-color: #e74c3c;
  --info-color: #3498db;
  --text-dark: #2c3e50;
  --text-muted: #7f8c8d;
  --bg-light: #f8f9fa;
  --border-color: #ecf0f1;
}

* {
  box-sizing: border-box;
}

body {
  background-color: var(--bg-light);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu',
    'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--text-dark);
}

/* Navbar */
.navbar {
  background-color: #ffffff !important;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  border-bottom: 1px solid var(--border-color);
}

.navbar-brand {
  font-weight: 700 !important;
  font-size: 1.4rem !important;
  color: var(--text-dark) !important;
}

.nav-link {
  color: var(--text-muted) !important;
  font-weight: 500;
  transition: color 0.3s ease;
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--primary-color) !important;
}

/* Cards */
.card {
  border: none !important;
  border-radius: 8px !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08) !important;
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12) !important;
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  color: var(--text-dark);
  font-weight: 600;
  margin-bottom: 1rem;
}

/* Badges */
.badge {
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 4px;
}

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

.table thead {
  background-color: var(--bg-light);
  border-bottom: 2px solid var(--border-color);
}

.table thead th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  padding: 1rem 0.75rem;
}

.table tbody tr {
  transition: background-color 0.2s ease;
  border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
  background-color: rgba(39, 174, 96, 0.03);
}

.table tbody td {
  padding: 1rem 0.75rem;
  color: var(--text-dark);
  vertical-align: middle;
}

/* Buttons */
.btn {
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background-color: var(--primary-color) !important;
  color: white !important;
}

.btn-primary:hover {
  background-color: #229954 !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(39, 174, 96, 0.3) !important;
}

.btn-secondary {
  background-color: var(--text-muted) !important;
  color: white !important;
}

.btn-secondary:hover {
  background-color: #6c757d !important;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
}

/* Form Controls */
.form-control,
.form-select {
  border: 1px solid var(--border-color) !important;
  border-radius: 6px !important;
  padding: 0.75rem 1rem !important;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  background-color: #ffffff;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1) !important;
}

.form-label {
  color: var(--text-dark);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

/* Modals */
.modal {
  display: block;
  position: fixed;
  z-index: 1050;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.3s ease;
}

.modal-dialog {
  animation: slideUp 0.3s ease;
}

.modal-content {
  border: none !important;
  border-radius: 12px !important;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2) !important;
}

.modal-header {
  border-bottom: 1px solid var(--border-color) !important;
  padding: 1.5rem !important;
  background-color: var(--bg-light);
}

.modal-title {
  color: var(--text-dark);
  font-weight: 600;
  font-size: 1.25rem;
}

.modal-body {
  padding: 1.5rem !important;
  color: var(--text-dark);
}

.modal-footer {
  border-top: 1px solid var(--border-color) !important;
  padding: 1.5rem !important;
  background-color: var(--bg-light);
}

/* Spinner */
.spinner-border {
  color: var(--primary-color) !important;
}

/* Alerts */
.alert {
  border: none !important;
  border-radius: 8px !important;
  border-left: 4px solid;
}

.alert-danger {
  background-color: #fee !important;
  border-left-color: #e74c3c !important;
  color: #c0392b !important;
}

.alert-info {
  background-color: #eff !important;
  border-left-color: #3498db !important;
  color: #2980b9 !important;
}

.alert-success {
  background-color: #efe !important;
  border-left-color: #27ae60 !important;
  color: #229954 !important;
}

.alert-warning {
  background-color: #ffeaa7 !important;
  border-left-color: #f39c12 !important;
  color: #d68910 !important;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .container-fluid {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .card-body {
    padding: 1rem;
  }

  .table {
    font-size: 0.9rem;
  }

  .table thead th {
    padding: 0.75rem 0.5rem;
  }

  .table tbody td {
    padding: 0.75rem 0.5rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .btn {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
  }

  .d-flex {
    flex-direction: column;
    gap: 0.5rem !important;
  }

  .d-flex.gap-2 {
    gap: 0.5rem !important;
  }
}

@media (max-width: 480px) {
  .navbar-brand {
    font-size: 1.1rem !important;
  }

  h2 {
    font-size: 1.25rem;
  }

  .card-body {
    padding: 0.75rem;
  }

  .modal-body {
    padding: 1rem !important;
  }

  .btn-sm {
    padding: 0.35rem 0.5rem;
    font-size: 0.8rem;
  }
}