body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    align-items: center;
    color: #222;
  }
  
  .container {
    max-width: 800px;
    width: 90%;
  
    background: white;
    padding: 2rem;
    border-radius: 16px;
  }
  
  h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
  }
  
  h2 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    margin-top: 0;
  }
  
  h3 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
    color: #bbb
  }
  
  .subtitle {
    font-size: 1rem;
    color: #bbb;
    margin-bottom: 2rem;
  }
  
  .caption {
    font-size: 0.9rem;
    color: #bbb;
    margin-bottom: 1rem;
  }
  
  .video-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
  }
  
  video {
    max-width: 500px;
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 8px;
  }
  
  .card {
    background: #eeeeee;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    margin: 0 auto;
  }
  
  .card ul {
    padding-left: 1.2rem;
    margin-top: 1rem;
  }
  
  .card li {
    margin-bottom: 0.5rem;
  }
  
  .button-group {
    margin-top: 2rem;
    display: grid;
    
    grid-template-columns: repeat(auto-fit, minmax(200px,100%));
    justify-content: stretch;
    
    gap: 10px;
    flex-direction: row;
  }
  
  button, input[type="submit"] {
    padding: 1rem 2rem;
    font-size: 1rem;
    background: #5F42F3;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  button {
    padding: 2rem 1.5rem;
    width: 100%;
  
  }
  
  input[type="text"] {
    padding:1rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    border: 1px solid #ccc;
    margin: 5px;
    box-sizing: border-box;
  }
  
  button:hover, input[type="submit"]:hover {
    background-color: #4a37c0;
  }
  
  .footer {
    margin-top: 2rem;
    font-size: 0.95rem;
    color: #bbb;
    text-align: center;
  }
  
  form {
    max-width: 100%;
  }
  
  .radio-group {
    display: grid;
    gap: 1rem;
  }
  
  .c3 {
    grid-template-columns: repeat(auto-fit, minmax(30%, 1fr));
  }
  
  .c2{
    grid-template-columns: repeat(auto-fit, minmax(45%, 1fr));
  }
  
  .radio-wrapper {
    position: relative;
  }
  
  .radio-wrapper input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
  }
  
  .custom-radio {
    display: block;
    text-align: center;
    padding: 1rem;
    border-radius: 12px;
    background-color: #eeeeee;
    transition: background-color 0.3s ease;
    cursor: pointer;
    color: #000;
  }
  
  .radio-wrapper input[type="radio"]:checked + .custom-radio {
    background-color: #5F42F3;
    color: white;
  }
  
  .custom-radio:hover {
    background-color: #d0d0d0;
  }
  
  
  
  .logo {
    max-width: 100%;
    width: 200px;
    height: auto;
    margin-bottom: 1em;
  }
  
  /* Responsive Typography */
  @media (max-width: 800px) {
    body {
      background-color: white;
    }
    h1 {
      font-size: 1.6rem;
    }
  
    h2 {
      font-size: 1.3rem;
    }
  
    .radio-group {
      display: flex;
      flex-direction: column;
    }
  
    .container {
      padding: 20px;
      margin: 0px, 0px;
      border-radius: 0px;
    }
  
    .card {
      padding: 20px;
    }
  
  }
  .header {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 5px;
  
  }
  .home-button {
    display: inline-block;
    padding: 6px 12px;
    font-size: 14px;
    border: 0px;
    border-radius: 8px;
    background-color: white;
    color: #222;
    outline: none;
    transition: border 0.3s ease, box-shadow 0.3s ease;
    appearance: none;
    cursor: pointer;
  }
  
  /* Language Selector */
  select[name="lang"] {
    padding: 6px 12px;
    font-size: 14px;
    border: 1px solid #222;
    border-radius: 8px;
    background-color: #eeeeee;
    color: #222;
    outline: none;
    transition: border 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
  }
  
  .home-button:hover{
    color: #5F42F3;
  }
  
  select[name="lang"]:hover  {
    border-color: #5F42F3;
  }
  
  select[name="lang"]:focus {
    border-color: #555;
    box-shadow: 0 0 0 2px rgba(100, 100, 255, 0.2);
  }
  
  
  #progress-bar-container {
    width: 100%;
    background-color: #eeeeee;
    overflow: hidden;
    height: 20px;
    position: fixed;
    bottom: 0;
  }
  
  #progress-bar {
    height: 100%;
    background: linear-gradient(to right, #5F42F3, #FF69B4);
    transition: width 0.3s ease;
  }