body {
      font-family: Arial, sans-serif;
      background: #0e101c;
      color: #fff;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 30px;
    }
    h2 {
      margin-bottom: 20px;
      color: #00e1ff;
      text-align: center;
    }
    .converter {
      background: #1f2235;
      padding: 24px;
      border-radius: 12px;
      width: 90%;
      max-width: 420px;
      box-shadow: 0 0 10px #00e1ff;
    }
    .input-group {
      margin-bottom: 15px;
    }
    label {
      display: block;
      margin-bottom: 6px;
      font-weight: bold;
    }
    input[type="number"] {
      width: 100%;
      padding: 10px;
      border: none;
      border-radius: 6px;
      font-size: 16px;
      background-color: #2a2e4a;
      color: white;
    }
    .result {
      margin-top: 12px;
      background: #292d4d;
      padding: 10px;
      border-radius: 6px;
      font-size: 16px;
      color: #ffcd00;
    }
    .icon {
      color: #00e1ff;
      margin-right: 5px;
    }
    @media(max-width: 480px) {
      h2 {
        font-size: 20px;
      }
    }