body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

header {
  background: #333;
  color: #fff;
  padding: 1rem 0;
  text-align: center;
}

header ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

header li {
  display: inline;
  margin: 0 10px;
}

header a {
  color: #fff;
  text-decoration: none;
}

main {
  padding: 2rem;
}

section {
  margin: 2rem 0;
}

.project-grid {
  display: flex;
  gap: 1rem;
}

.project {
  border: 1px solid #ccc;
  padding: 1rem;
  text-align: center;
}

footer {
  text-align: center;
  padding: 1rem 0;
  background: #333;
  color: #fff;
}