body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background-color: #f4f4f4;
  color: #333;
  text-align: center;
  padding-top: 90px;
}

header {
  background: #333;
  color: #fff;
  padding: 1em 0;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}

nav ul {
  list-style: none;
  padding: 0;
}

nav ul li {
  display: inline;
  margin: 0 15px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
}

section {
  padding: 0.15em 2em 2em;
  margin: 3em auto;
  background: #fff;
  max-width: 1000px;
  width: 90%;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

h1, h2 {
  color: #444;
  text-align: center;
}

.card-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1em;
}

.card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 5px;
  padding: 1em;
  width: 375px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
  text-align: center;
}

.card h3 {
  margin-top: 0;
  font-size: 1.2em;
  color: #444;
}

.card p {
  font-size: 0.9em;
  color: #666;
  margin: 0.5em 0 0;
}

.card-link {
  display: inline-block;
  margin-top: 10px;
  color: #0066cc;
  text-decoration: none;
}

.card-link:hover {
  text-decoration: underline;
}

.card:hover {
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
}

footer {
  text-align: center;
  padding: 1em 0;
  background: #333;
  color: #fff;
  position: relative;
  bottom: 0;
  width: 100%;
}