* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Open Sans', sans-serif;
  }
  
  body {
    background: #181818;
  }
  
  .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 50px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0px 0px 50px rgba(0, 0, 0, 0.2);
    text-align: center;
  }
  
  .container h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #000;
    text-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
  }
  
  form {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  label {
    display: block;
    margin: 20px 0 10px;
    font-size: 18px;
    color: #000;
  }
  
  input[type='text'],
  select {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 16px;
    background: #f2f2f2;
    color: #000;
  }
  
  select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, gray 50%),
      linear-gradient(135deg, gray 50%, transparent 50%);
    background-position: calc(100% - 20px) calc(1em + 2px),
      calc(100% - 15px) calc(1em + 2px);
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
  }
  
  input[type='submit'] {
    background: linear-gradient(to bottom, #2e3d4d, #1a232c);
    border: none;
    border-radius: 10px;
    padding: 12px 24px;
    font-size: 18px;
    color: #fff;
    cursor: pointer;
    transition: background 0.3s ease-in-out;
  }
  
  input[type='submit']:hover {
    background: linear-gradient(to top, #2e3d4d, #1a232c);
  }
  
  @media only screen and (max-width: 600px) {
    .container {
      padding: 20px;
    }
    label {
      font-size: 16px;
    }
    input[type='text'],
    select {
      font-size: 14px;
    }
    input[type='submit'] {
      font-size: 16px;
    }
  }