:root {
    --primary-color: #000; /* Black */
    --secondary-color: #fff; /* White */
    --accent-color: #000; /* Black */
    --text-color: #000; /* Black */
    --light-text: #555; /* Dark Grey */
    --border-color: #000; /* Black */
    --success-color: #000; /* Black */
    --error-color: #000; /* Black */
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0); /* No shadow */
    --transition: all 0.3s ease;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  }
  
  body {
    background-color: var(--secondary-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px;
  }
  
  .form-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--secondary-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
  }
  
  h1, h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
  }
  
  h1 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 30px;
  }
  
  h2 {
    font-size: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
    margin-top: 30px;
  }
  
  .form-section {
    margin-bottom: 30px;
  }
  
  .form-group {
    margin-bottom: 20px;
  }
  
  label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
  }
  
  input[type="text"],
  input[type="tel"],
  input[type="url"],
  input[type="number"],
  input[type="date"],
  input[type="file"],
  select,
  textarea {
    width: 100%;
    padding: 14px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px;
    background-color: var(--secondary-color);
  }
  
  input[type="text"]:focus,
  input[type="tel"]:focus,
  input[type="url"]:focus,
  input[type="number"]:focus,
  input[type="date"]:focus,
  select:focus,
  textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-color);
  }
  
  textarea {
    resize: vertical;
    min-height: 100px;
  }
  
  .radio-group,
  .checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  
  .radio-option,
  .checkbox-option {
    display: flex;
    align-items: center;
  }
  
  .radio-option input[type="radio"],
  .checkbox-option input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
  }
  
  .submit-btn {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    border: none;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    margin-top: 20px;
  }
  
  .submit-btn:hover {
    background-color: #333;
    transform: translateY(-2px);
  }
  
  .hidden {
    display: none;
  }
  
  .form-actions {
    text-align: center;
  }
  
  /* Error Styling */
  .error {
    color: var(--error-color);
    font-size: 14px;
    margin-top: 5px;
  }
  
  input.error-input,
  select.error-input {
    border-color: var(--error-color);
  }
  
  /* Success Message */
  .success-message {
    background-color: var(--success-color);
    color: var(--secondary-color);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    text-align: center;
    display: none;
  }
  
  /* File Upload Styling */
  .file-upload-wrapper {
    position: relative;
    margin-bottom: 20px;
  }
  
  .file-upload-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
  }
  
  .file-upload-label:hover {
    border-color: var(--primary-color);
  }
  
  .file-upload-label i {
    color: var(--primary-color);
    font-size: 20px;
  }
  
  .file-upload-input {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
  }
  
  .file-upload-name {
    margin-top: 8px;
    font-size: 14px;
    color: var(--light-text);
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .form-container {
      padding: 20px;
    }
  
    h1 {
      font-size: 1.8rem;
    }
  
    h2 {
      font-size: 1.3rem;
    }
  
    input[type="text"],
    input[type="tel"],
    input[type="url"],
    input[type="number"],
    input[type="date"],
    input[type="file"],
    select,
    textarea {
      padding: 12px;
      font-size: 14px;
    }
  
    .submit-btn {
      padding: 12px 20px;
      font-size: 14px;
    }
  }
  
  @media (max-width: 480px) {
    .form-container {
      padding: 15px;
    }
  
    h1 {
      font-size: 1.6rem;
    }
  
    h2 {
      font-size: 1.2rem;
    }
  
    .radio-group,
    .checkbox-group {
      gap: 8px;
    }
  }