body {
  margin: 0;
  color: #202124;
  background: #f7f7f4;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 20px 64px;
}

h1,
h2 {
  color: #12343b;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}

a {
  color: #075985;
}

nav a,
.button-link {
  border: 1px solid #b8c2c7;
  border-radius: 6px;
  padding: 10px 12px;
  background: #ffffff;
  text-decoration: none;
  display: inline-block;
}

.notice {
  border-left: 4px solid #b45309;
  background: #fff7ed;
  padding: 12px 16px;
}

.meta {
  color: #5b6168;
  font-size: 0.95rem;
}

code {
  background: #eef2f7;
  padding: 2px 4px;
  border-radius: 4px;
}