*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: system-ui, sans-serif;
  margin: 0;
  color: #202124;
  background: #fff;
}

header {
  border-bottom: 1px solid #e0e0e0;
  padding: 0 24px;
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 56px;
}

nav a {
  color: #1a73e8;
  text-decoration: none;
  font-size: 14px;
}

nav a.site-name {
  font-size: 18px;
  font-weight: 600;
  color: #202124;
  margin-right: auto;
}

main {
  max-width: 800px;
  margin: 48px auto;
  padding: 0 24px;
}