.modern-contact-form {
    background-color: white;
    border-radius: 12px;
    padding: 40px;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
  }

  
  .form-heading {
    margin-bottom: 20px;
    position: relative;
  }
  
  .form-heading h3 {
    color: #333;
    margin-bottom: 15px;
  }
  
  .heading-separator {
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, #3554d1, #5cc2ed);
    margin-bottom: 15px;
  }
  
  .contact-form-content {
    padding-top: 10px;
  }
  
  /* Input Fields - Material Design Style */
  .input-group {
    position: relative;
    margin-bottom: 35px;
  }
  
  .input-field {
    position: relative;
  }
  
  .input-field input,
  .input-field textarea {
    width: 100%;
    padding: 10px 0;
    font-size: 16px;
    color: #444;
    border: none;
    border-bottom: 1px solid #ddd;
    outline: none;
    background: transparent;
    transition: all 0.3s ease;
  }
  
  .input-field textarea {
    min-height: 100px;
    resize: none;
  }
  
  .input-field label {
    position: absolute;
    top: 10px;
    left: 0;
    color: #999;
    font-size: 16px;
    pointer-events: none;
    transition: all 0.3s ease;
  }
  
  /* Active state */
  .input-field input:focus ~ label,
  .input-field input:valid ~ label,
  .input-field textarea:focus ~ label,
  .input-field textarea:valid ~ label {
    top: -20px;
    left: 0;
    color: #3554d1;
    font-size: 14px;
  }
  
  /* Highlight effect */
  .input-field .highlight {
    position: absolute;
    height: 60%;
    width: 100px;
    top: 25%;
    left: 0;
    pointer-events: none;
    opacity: 0.5;
  }
  
  /* Bar effect */
  .input-field .input-bar {
    position: relative;
    display: block;
    width: 100%;
  }
  
  .input-field .input-bar:before,
  .input-field .input-bar:after {
    content: '';
    height: 2px;
    width: 0;
    bottom: 0;
    position: absolute;
    background: #3554d1;
    transition: all 0.3s ease;
  }
  
  .input-field .input-bar:before {
    left: 50%;
  }
  
  .input-field .input-bar:after {
    right: 50%;
  }
  
  .input-field input:focus ~ .input-bar:before,
  .input-field input:focus ~ .input-bar:after,
  .input-field textarea:focus ~ .input-bar:before,
  .input-field textarea:focus ~ .input-bar:after {
    width: 50%;
  }
  
  /* Button styles */
  .form-action {
    margin-top: 40px;
  }
  
  .submit-button {
    background: linear-gradient(45deg, #3554d1, #5cc2ed);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(53, 84, 209, 0.3);
    transition: all 0.3s ease;
    outline: none;
    width: 100%;
    text-transform: uppercase;
  }
  
  .submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(53, 84, 209, 0.4);
  }
  
  .submit-button:active {
    transform: translateY(0);
  }
  
  /* Success message styling */
  .alert-success {
    background-color: rgba(76, 175, 80, 0.1);
    color: #4CAF50;
    padding: 15px;
    border-radius: 4px;
    margin-top: 20px;
    display: none;
    animation: fadeIn 0.5s ease;
  }
  
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  /* Loading animation for button */
  .submit-button.loading {
    position: relative;
    color: transparent;
  }
  
  .submit-button.loading:after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin: -10px 0 0 -10px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
  }
  
  @keyframes spin {
    to { transform: rotate(360deg); }
  }

  /* Điều chỉnh màu cho icon điện thoại */
  .icon-phone.text-blue-1 {
    color: #98B94F !important;
  }
  
  .rounded-full.bg-blue-1-05 {
    background-color: rgba(152, 185, 79, 0.15) !important;
  }