body {
    background-color: #000;
    background-image: url('page-illustration.svg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center top;
    background-attachment: fixed;
    color: var(--hero-text);
    font-family: 'Montserrat', sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 24px;
  }
  
  .navbar-wrapper {
    display: flex;
    justify-content: center;
    width: 100%;
    padding-top: 20px;
  }
  
  .navbar {
    position: sticky;
    top: 0;
    width: 60%;
    height: 60px;
    background: white;
    border-radius: 10px;
    padding: 0 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 10;
  }
  
  .navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
  }
  
  .btn-light {
    background: white;
    border: 1px solid #ccc;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
  }
  
  .hero-container {
    padding: 32px 16px;
    text-align: center;
    color: white;
  }
  
  .hero-title {
    font-size: 32px;
    margin: 0;
  }
  
  .hero-subtitle {
    font-size: 16px;
    opacity: 0.8;
  }
  
  .grading-form {
    display: flex;
    justify-content: center;
    padding: 32px 16px;
  }
  
  .form-card {
    background: #f9fafb;
    padding: 32px;
    border-radius: 16px;
    max-width: 1080px;
    width: 100%;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
  }
  
  .form-grid {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    align-items: flex-start;
    flex-wrap: wrap;
  }
  
  .form-left {
    flex: 1 1 55%;
    max-width: 55%;
    min-width: 300px;
  }
  
  .form-right {
    flex: 1 1 40%;
    max-width: 340px;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
    height: fit-content;
    margin-left: auto;
  }
  
  .form-section {
    margin-bottom: 20px;
  }
  
  .form-label {
    font-weight: 500;
    font-size: 14px;
    display: block;
    margin-bottom: 6px;
    color: #111827;
  }
  
  input[type="text"],
  select,
  textarea {
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    background-color: #f3f4f6;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    outline: none;
    transition: border-color 0.2s;
  }
  
  input[type="text"]:focus,
  select:focus,
  textarea:focus {
    border-color: #6366f1;
  }
  
  .checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 12px;
  }
  
  .checkbox-group label {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    padding: 10px 12px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    transition: all 0.2s ease;
    cursor: pointer;
  }
  
  .checkbox-group label:hover {
    background: #f3f4f6;
    border-color: #c7d2fe;
  }
  
  .checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: #5b27f2;
  }
  
  .btn-purple {
    background: #5b27f2;
    color: white;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
  }
  
  .btn-purple:hover {
    background: #4721c5;
  }
  
  .text-center {
    text-align: center;
  }
  
  .loader {
    display: none;
    width: 24px;
    height: 24px;
    border: 3px solid #e5e7eb;
    border-top: 3px solid #5b27f2;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin: 0 auto;
  }
  
  @keyframes spin {
    to {
      transform: rotate(360deg);
    }
  }
  
  @media (max-width: 768px) {
    .form-grid {
      flex-direction: column;
    }
  
    .form-left,
    .form-right {
      max-width: 100%;
    }
  
    .form-card {
      padding: 24px;
    }
  
    .form-right {
      margin-left: 0;
      margin-top: 20px;
    }
  }