/* Minimalistic Black & White Theme */
:root {
    --primary-color: #000000;
    --secondary-color: #333333;
    --background: #000000;
    --surface: #111111;
    --surface-hover: #1a1a1a;
    --border: #333333;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --shadow: 0 1px 3px rgba(255, 255, 255, 0.1);
    --radius: 4px;
  }
  
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
    transition: all 0.2s ease;
    min-height: 100vh;
  }
  
  /* Loading Overlay */
  .loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
  }
  
  .loading-spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--border);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
  }
  
  @keyframes spin {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }
  
  /* Container */
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  
  /* Header */
  .header {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
  }
  
  .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .header-left {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .header-icon {
    font-size: 24px;
  }
  
  .header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 4px;
  }
  
  .header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
  }
  
  /* Statistics Grid */
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
  }
  
  .stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
  }
  
  .stat-card:hover {
    background: var(--surface-hover);
  }
  
  .stat-icon {
    font-size: 20px;
    margin-bottom: 8px;
    display: block;
  }
  
  .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 4px;
  }
  
  .stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
  }
  
  /* Modern Filters */
  .filters-modern {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
  }
  
  .filter-row {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
  }
  
  .filter-item {
    position: relative;
  }
  
  .filter-select,
  .search-input,
  .cgpa-input {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s ease;
  }
  
  .filter-select:focus,
  .search-input:focus,
  .cgpa-input:focus {
    border-color: var(--primary-color);
  }
  
  .search-item {
    flex: 1;
    min-width: 200px;
  }
  
  .search-input {
    width: 100%;
    padding-right: 35px;
  }
  
  .search-icon {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
  }
  
  .cgpa-filter {
    display: flex;
    gap: 4px;
  }
  
  .cgpa-toggle {
    background: var(--primary-color);
    color: var(--text-primary);
    border: none;
    border-radius: var(--radius);
    padding: 8px 12px;
    cursor: pointer;
    font-weight: 600;
    transition: opacity 0.2s ease;
    min-width: 40px;
  }
  
  .cgpa-toggle:hover {
    opacity: 0.8;
  }
  
  .cgpa-input {
    width: 80px;
  }
  
  .reset-btn {
    background: var(--secondary-color);
    color: var(--text-primary);
    border: none;
    border-radius: var(--radius);
    padding: 8px 12px;
    cursor: pointer;
    transition: opacity 0.2s ease;
    font-size: 16px;
  }
  
  .reset-btn:hover {
    opacity: 0.8;
  }
  
  /* Branch Statistics */
  .branch-stats-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
  }
  
  .branch-stats-section h3 {
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
  }
  
  .branch-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
  }
  
  .branch-stat-card {
    background: var(--surface-hover);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    position: relative;
  }
  
  .branch-stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
  }
  
  .branch-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 0.9rem;
    line-height: 1.3;
  }
  
  .branch-metrics {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
    gap: 4px;
  }
  
  /* Table Section */
  .table-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
  }
  
  .table-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface-hover);
  }
  
  .table-header h3 {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
  }
  
  #recordCount {
    color: var(--text-secondary);
    font-size: 0.85rem;
    background: var(--surface);
    padding: 4px 8px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
  }
  
  .table-wrapper {
    max-height: 500px;
    overflow: auto;
  }
  
  /* Table Styling */
  table {
    width: 100%;
    border-collapse: collapse;
  }
  
  thead {
    background: var(--surface-hover);
    position: sticky;
    top: 0;
    z-index: 10;
  }
  
  th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
  }
  
  th.sortable {
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease;
  }
  
  th.sortable:hover {
    background: var(--surface);
  }
  
  .sort-indicator {
    margin-left: 4px;
    font-size: 0.7rem;
    color: var(--primary-color);
  }
  
  tbody tr {
    transition: background-color 0.2s ease;
    border-bottom: 1px solid var(--border);
  }
  
  tbody tr:hover {
    background: var(--surface-hover);
  }
  
  td {
    padding: 10px 12px;
    font-size: 0.85rem;
    color: var(--text-primary);
  }
  
  .clickable {
    cursor: pointer;
    transition: background-color 0.2s ease;
    border-radius: 2px;
    padding: 2px 4px;
    margin: -2px -4px;
  }
  
  .clickable:hover {
    background: var(--surface-hover);
    text-decoration: underline;
  }
  
  .cgpa-badge {
    padding: 4px 8px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.75rem;
    text-align: center;
    min-width: 45px;
    display: inline-block;
    border: 1px solid;
  }
  
  .cgpa-excellent {
    background: var(--primary-color);
    color: var(--text-primary);
    border-color: var(--primary-color);
  }
  
  .cgpa-good {
    background: var(--surface);
    color: var(--text-primary);
    border-color: var(--primary-color);
  }
  
  .cgpa-average {
    background: var(--surface-hover);
    color: var(--text-primary);
    border-color: var(--secondary-color);
  }
  
  .cgpa-below {
    background: var(--surface-hover);
    color: var(--text-secondary);
    border-color: var(--border);
  }
  
  .cgpa-invalid {
    background: var(--surface-hover);
    color: var(--text-secondary);
    border-color: var(--border);
  }
  
  .branch-badge {
    background: var(--surface-hover);
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: var(--radius);
    font-size: 0.75rem;
    border: 1px solid var(--border);
    display: inline-block;
    max-width: 100%;
    text-align: center;
  }
  
  /* Quick Links */
  .quick-links {
    margin-top: 20px;
  }
  
  .links-row {
    display: flex;
    gap: 12px;
    justify-content: center;
  }
  
  .link-item {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8rem;
    padding: 6px 12px;
    border-radius: var(--radius);
    transition: all 0.2s ease;
    background: var(--surface);
    border: 1px solid var(--border);
  }
  
  .link-item:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
  }
  
  /* Toast Notification */
  .toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 12px 16px;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 1000;
  }
  
  .toast.show {
    transform: translateX(0);
  }
  
  .toast-content {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  
  .toast-message {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .container {
      padding: 12px;
      gap: 16px;
    }
  
    .header-content {
      flex-direction: column;
      gap: 12px;
    }
  
    .stats-grid {
      grid-template-columns: 1fr;
    }
  
    .filter-row {
      flex-direction: column;
      align-items: stretch;
    }
  
    .filter-item {
      width: 100%;
    }
  
    .cgpa-filter {
      justify-content: center;
    }
  
    .table-wrapper {
      font-size: 0.8rem;
    }
  
    th,
    td {
      padding: 8px;
    }
  
    .links-row {
      flex-direction: column;
      align-items: center;
    }
  
    .branch-metrics {
      flex-direction: column;
      gap: 2px;
    }
  }
  
  /* Scrollbar Styling */
  .table-wrapper::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }
  
  .table-wrapper::-webkit-scrollbar-track {
    background: var(--surface-hover);
  }
  
  .table-wrapper::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
  }
  
  .table-wrapper::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
  }
  
  /* Remove animations for minimalistic feel */
  .container > * {
    /* No fade-in animation */
  }
  
  /* Clean focus states */
  button:focus,
  input:focus,
  select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
  }
  .input-group {
    display: flex
;
    justify-content: center;
}
input#code {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s ease;
  display: flex
;
  justify-content: center !important;
}