index.css

/* Global styles */

* {
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    margin: 0;
  }
  
  /* Header styles */
  
  header {
    background-color: #333;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2vh 4vw;
  }
  
  .nav_elem {
    list-style: none;
    margin-right: 2vw;
  }
  
  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .nav_elem {
    margin-right: 20vw;
  }

  .nav_elem:last-child {
    margin-right: 0;
  }
  
  .nav_elem a {
    color: #fff;
    text-decoration: none;
  }
  
  /* Main content styles */
  
  main {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 4vh 4vw;
  }
  
  h1 {
    font-size: 5vw;
    margin-bottom: 2vh;
  }
  
  p {
    font-size: 3vw;
    margin-bottom: 4vh;
  }
  
  form {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 4vh;
  }
  
  input[type="file"] {
    margin-bottom: 2vh;
  }
  
  button[type="submit"] {
    padding: 1vh 2vw;
    background-color: #333;
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 2vw;
    transition: all 0.2s ease;
  }
  
  button[type="submit"]:hover {
    background-color: #fff;
    color: #333;
  }
  
  /* Footer styles */
  
  footer {
    background-color: #f2f2f2;
    padding: 2vh 4vw;
    text-align: center;
  }
  
  footer p {
    font-size: 2vw;
    margin: 0;
  }