:root {
  --fg: #222;
  --bg: #fff;
  --muted: #666;
  --accent: #2a5d8f;
  --line: #ddd;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.5 system-ui, sans-serif;
  color: var(--fg);
  background: var(--bg);
}
.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
}
.site-header {
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.5rem;
}
.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--accent);
}
.site-nav ul {
  display: flex;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  color: var(--fg);
  text-decoration: none;
}
.site-nav .active a,
.site-nav a:hover {
  color: var(--accent);
}
.site-nav .login {
  margin-left: 1rem;
}
main { padding: 2rem 1rem; }
.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .875rem;
  padding: 1rem 0;
}
a { color: var(--accent); }
input, select, textarea, button {
  font: inherit;
}