styles.css

body {
  font-family:system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #f5f5f5;
  color: #333;
}
a {
  color: #8cc0f5; 
  text-decoration: none; 
}

ul {
  line-height: 1.6;
  padding-left: 20px;
}

header {
  background-color: #155493;
  color: #ffffff;
  padding: 20px 0;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

header h1 {
  font-size: 2.5em;
  font-weight: 900;
  margin: 0;
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
  z-index: 2;
}

header h2 {
  font-size: 1.2em;
  font-weight: 500;
}

#container {
  margin-top: 2em;
}

.tile {
  height: 150px;
  width: calc(33.33% - 20px);
  float: left;
  margin: 10px;
  border: none;
  background-color: #e0e0e0;
  border-radius: 6px;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: bold;
  color: #555;
}

.tile:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  background-color: #d0d0d0;
}


@media (max-width: 768px) {
  .tile {
    width: calc(50% - 20px);
  }
  header {
    padding: 15px 0;
  }
  header h1 {
    font-size: 1.8em;
  }
}

@media (max-width: 480px) {
  .tile {
    width: calc(50% - 20px);
    height: 120px;
  }
  header {
    padding: 27px 0;
  }
  header h1 {
    font-size: 1.5em;
  }
  header p {
    font-size: .8em;
    padding: .4em;
  }
  body {
    padding: 10px;
  }
}