body {
  display: flex;
  margin: 0;
  font-family: sans-serif;
}

.sidebar {
  width: 200px;
  background: #f5f5f5;
  height: 100vh;
  padding: 1em;
}

.sidebar .logo {
  font-weight: bold;
  margin-bottom: 1em;
}

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

nav ul li a {
  text-decoration: none;
  display: block;
  padding: 0.5em 0;
  color: #333;
}

main {
  flex-grow: 1;
  padding: 2em;
  background: #fff;
}

.hero {
  text-align: center;
  margin-bottom: 2em;
}

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

.card {
  width: 250px;
  text-align: left;
}

.card img {
  width: 100%;
  border-radius: 12px;
}

footer {
  text-align: center;
  margin-top: 4em;
}

.markdown-body {
  padding: 1em;
  line-height: 1.6;
}

.align-left {
  text-align: left;
}