body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, sans-serif;
  line-height: 1.5;
  color: #1f2933;
  background: linear-gradient(135deg, #f0fdf4, #eff6ff 50%, #f0fdfa);
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

h1 {
  font-size: 2.75rem;
  margin: 0.5rem 0;
  color: #15803d;
}

.lead {
  font-size: 1.25rem;
  font-weight: 600;
}

h2 {
  margin-top: 2.5rem;
}

.sites {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1rem;
}

.sites a {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  border-radius: 0.75rem;
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  color: inherit;
  text-decoration: none;
}

.sites a:hover,
.sites a:focus {
  box-shadow: 0 4px 12px rgba(21, 128, 61, 0.25);
}

.name {
  font-size: 1.4rem;
  font-weight: 700;
  color: #15803d;
}

.where {
  color: #6b7280;
}

.what {
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

footer {
  margin-top: 3rem;
  text-align: center;
  font-size: 0.9rem;
  color: #6b7280;
}