body {
  font-family: Tahoma, sans-serif;
  font-size: 12pt;
  color: black;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to right, rgb(233, 213, 255), rgb(192, 132, 252), rgb(107, 33, 168));
}

header {
  width: 100%;
  text-align: center;
  padding: 20px 0;
}

header h1 {
  font-size: 2em;
  margin: 0;
}

.main-content {
  width: 700px;
  max-width: 90%;
  text-align: center;
  padding: 40px 30px;
  margin: 20px auto;
  line-height: 1.6;
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.main-content p {
  text-align: justify;
}

a {
  color: black;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: purple;
}

footer {
  width: 100%;
  background-color: #333;
  color: white;
  text-align: center;
  padding: 15px 0;
}

footer a {
  color: white;
  text-decoration: none;
  margin: 0 10px;
  transition: color 0.3s ease;
}
 /* Side navigation */
    .sidenav {
      height: 100%;
      width: 160px;
      position: fixed;
      z-index: 1;
      top: 0;
      left: 0;
      background-color: #111;
      overflow-x: hidden;
      padding-top: 20px;
    }

    .sidenav a {
      padding: 6px 8px 6px 16px;
      text-decoration: none;
      font-size: 20px;
      color: #818181;
      display: block;
    }

    .sidenav a:hover {
      color: purple;
    }