.center-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 30vh;
  padding: 20px;
}


.visa-box {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    border-radius: 25px;
    padding: 40px 35px;
    max-width: 750px;
    width: 100%;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);

  }

  .visa-box h2 {
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(90deg, #182952, #148e7d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 30px;
  }

  form {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
  }

  input, select {
    flex: 1 1 45%;
    padding: 14px 15px;
    border-radius: 12px;
    border: 1px solid #dcdcdc;
    font-size: 15px;
    color: #182952;
    outline: none;
    background: rgba(255, 255, 255, 0.9);
    transition: 0.3s;
  }

  input:focus, select:focus {
    border-color: #148e7d;
    box-shadow: 0 0 10px rgba(20, 142, 125, 0.3);
  }

  button {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 600;
    background: linear-gradient(90deg, #148e7d, #182952);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
  }

  button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(20, 142, 125, 0.3);
  }

  @media (max-width: 768px) {
    input, select {
      flex: 1 1 100%;
    }
  }