body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  color: #111;
  background-color: #fff;
}
header {
  background-color: #f8f9fa;
  padding: 1rem 2rem;
  border-bottom: 1px solid #e1e1e1;
}
nav a {
  margin: 0 1rem;
  text-decoration: none;
  color: #2c3e50;
  font-weight: 500;
}
section {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}
h1, h2, h3 {
  color: #2c3e50;
}
a.button {
  display: inline-block;
  padding: 0.5rem 1rem;
  margin-top: 0.5rem;
  background-color: #8AC149;
  color: white;
  text-decoration: none;
  border-radius: 4px;
}
iframe {
  width: 100%;
  height: 600px;
  border: none;
}
ul {
  padding-left: 1.2rem;
}
ul li {
  margin-bottom: 0.5rem;
}