body {
      background-color: #f8f9fa;
      font-family: 'IranYekan', sans-serif;
      font-size: 14px;
    }

    .form-container {
      max-width: 460px;
      margin: 100px auto;
      background-color: #ffffff;
      border-radius: 18px;
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
      overflow: hidden;
    }

    .form-header {
      background-color: #1d3557;
      color: white;
      padding: 12px 25px;
      text-align: center;
      font-size: 16px;
      margin-bottom: 50px;
    }

    .form-body {
      padding: 0px 25px 25px 25px;
    }

    .form-label {
      white-space: nowrap;
      margin-left: 10px;
      font-size: 13px;
    }

    .form-control {
      background-color: #f0f0f0;
      border-radius: 25px;
      border: none;
      height: 36px;
      font-size: 13px;
    }

    .form-control:focus {
      box-shadow: none;
      outline: none;
      border: 1px solid #999;
    }

    .captcha-box {
      background-color: #dcdcdc;
      padding: 6px 14px;
      text-align: center;
      font-weight: bold;
      letter-spacing: 2px;
      font-size: 15px;
      border-radius: 6px;
    }

    .submit-btn {
      background-color: #1d3557;
      color: white;
      border: none;
      border-radius: 28px;
      padding: 8px;
      font-size: 14px;
      height: 42px;
    }

    .submit-btn:hover {
      background-color: #16314e;
    }