/* =================================================================
   Registered Subjects/Modules (registered_subjects.ejs) - Styles
   ================================================================= */

/* =================================================================
   Page Layout
   ================================================================= */

.registered-subjects-container {
  padding: var(--spacing-8) 0;
}

/* =================================================================
   Header Section
   ================================================================= */

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-6);
}

.page-header h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0;
}

.btn-add-subject {
  padding: var(--spacing-3) var(--spacing-5);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  border: none;
  background: var(--color-primary);
  color: var(--color-white);
  transition: var(--transition-base);
  box-shadow: var(--shadow-md);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
}

.btn-add-subject:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
  text-decoration: none;
}

/* =================================================================
   Filter Form
   ================================================================= */

.filter-form {
  background: var(--color-white);
  padding: var(--spacing-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-6);
}

.filter-form .form-label {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
  display: block;
}

.filter-form .form-select {
  height: auto;
  min-height: 45px;
  padding: var(--spacing-3);
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: var(--transition-base);
}

.filter-form .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(37, 117, 252, 0.25);
  outline: none;
}

/* =================================================================
   Export Buttons
   ================================================================= */

.export-buttons {
  text-align: center;
  margin-bottom: var(--spacing-5);
  display: flex;
  justify-content: center;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.btn-export {
  padding: var(--spacing-2) var(--spacing-5);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  border: none;
  color: var(--color-white);
  transition: var(--transition-base);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

.btn-export:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-export.csv {
  background: var(--color-info);
}

.btn-export.csv:hover {
  background: var(--color-info-dark);
}

.btn-export.pdf {
  background: var(--color-warning);
}

.btn-export.pdf:hover {
  background: var(--color-warning-dark);
}

.btn-export.print {
  background: var(--color-success);
}

.btn-export.print:hover {
  background: var(--color-success-dark);
}

/* =================================================================
   Table Styles
   ================================================================= */

.table-container {
  overflow-x: auto;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-6);
}

.subjects-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}

.subjects-table thead th {
  background: var(--color-gray-800);
  color: var(--color-white);
  text-align: center;
  padding: var(--spacing-3);
  font-weight: var(--font-weight-bold);
  border: 1px solid var(--color-border-dark);
  white-space: nowrap;
}

.subjects-table tbody td {
  text-align: center;
  vertical-align: middle;
  padding: var(--spacing-3);
  border: 1px solid var(--color-border-medium);
}

.subjects-table tbody tr:nth-child(even) {
  background: var(--color-gray-100);
}

.subjects-table tbody tr:hover {
  background: var(--color-gray-200);
  transition: var(--transition-fast);
}

/* Action buttons in table */
.subjects-table .btn-action {
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  margin: 0 var(--spacing-1);
  border: none;
  color: var(--color-white);
  cursor: pointer;
  transition: var(--transition-fast);
}

.subjects-table .btn-action.edit {
  background: var(--color-warning);
}

.subjects-table .btn-action.edit:hover {
  background: var(--color-warning-dark);
}

.subjects-table .btn-action.delete {
  background: var(--color-danger);
}

.subjects-table .btn-action.delete:hover {
  background: var(--color-danger-dark);
}

/* =================================================================
   Add Subject Form
   ================================================================= */

.add-form-container {
  background: var(--color-white);
  padding: var(--spacing-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.add-form-container h2 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-5);
}

.add-form-container h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-3);
}

.add-form-container .form-group {
  margin-bottom: var(--spacing-4);
}

.add-form-container .form-label {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
  display: block;
}

.add-form-container .form-control,
.add-form-container .form-select {
  padding: var(--spacing-3);
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: var(--transition-base);
  width: 100%;
}

.add-form-container .form-control:focus,
.add-form-container .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(37, 117, 252, 0.25);
  outline: none;
}

.add-form-container hr {
  border: none;
  border-top: 2px solid var(--color-border-light);
  margin: var(--spacing-5) 0;
}

.add-form-container .btn-submit {
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  border: none;
  background: var(--color-primary);
  color: var(--color-white);
  transition: var(--transition-base);
  box-shadow: var(--shadow-md);
  cursor: pointer;
}

.add-form-container .btn-submit:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* =================================================================
   Modal Styles
   ================================================================= */

.modal-content {
  border-radius: var(--radius-lg);
  border: none;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  background: var(--color-primary-gradient);
  color: var(--color-white);
  padding: var(--spacing-4) var(--spacing-5);
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  border-bottom: none;
}

.modal-header .modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

.modal-header .btn-close {
  filter: brightness(0) invert(1);
  opacity: 1;
}

.modal-body {
  padding: var(--spacing-5);
}

.modal-body .form-group {
  margin-bottom: var(--spacing-4);
}

.modal-body .form-label {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
  display: block;
}

.modal-body .form-control,
.modal-body .form-select {
  padding: var(--spacing-3);
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: var(--transition-base);
}

.modal-body .form-control:focus,
.modal-body .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(37, 117, 252, 0.25);
  outline: none;
}

.modal-body .btn-primary {
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  border: none;
  background: var(--color-primary);
  color: var(--color-white);
  transition: var(--transition-base);
}

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

/* =================================================================
   Responsive Adjustments
   ================================================================= */

@media (max-width: 768px) {
  .registered-subjects-container {
    padding: var(--spacing-4) 0;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-3);
  }

  .btn-add-subject {
    width: 100%;
    justify-content: center;
  }

  .filter-form {
    padding: var(--spacing-4);
  }

  .export-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-export {
    width: 100%;
  }

  .table-container {
    padding: var(--spacing-2);
    margin-left: calc(var(--spacing-4) * -1);
    margin-right: calc(var(--spacing-4) * -1);
    border-radius: 0;
  }

  .subjects-table {
    font-size: var(--font-size-sm);
  }

  .subjects-table thead th,
  .subjects-table tbody td {
    padding: var(--spacing-2);
  }

  .add-form-container {
    padding: var(--spacing-4);
  }
}

@media (max-width: 480px) {
  .page-header h2 {
    font-size: var(--font-size-xl);
  }

  .subjects-table {
    font-size: var(--font-size-xs);
  }

  .subjects-table thead th,
  .subjects-table tbody td {
    padding: var(--spacing-1);
  }

  .subjects-table .btn-action {
    display: block;
    width: 100%;
    margin: var(--spacing-1) 0;
  }
}

/* =================================================================
   Print Styles
   ================================================================= */

@media print {
  .filter-form,
  .export-buttons,
  .btn-add-subject,
  .subjects-table .btn-action {
    display: none !important;
  }

  .table-container {
    box-shadow: none;
    padding: 0;
    overflow: visible;
  }

  .subjects-table thead th {
    background: #343a40 !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .subjects-table tbody tr:nth-child(even) {
    background: #f8f9fa !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}

/* =================================================================
   Animations
   ================================================================= */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.table-container,
.add-form-container {
  animation: fadeIn 0.5s ease-out;
}