:root {
  color-scheme: light;
  --ink:#141414; --muted:#676767; --rule:#DCE5E7; --paper:#F0F0F0; --surface:#FFFFFF; --accent:#225163; --accent-faint:#E8F0F2;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
}
a { color: inherit; }
.nav {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 10px;
}
.nav a {
  padding: 8px 10px;
  border-radius: 7px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}
.nav a[aria-current="page"] {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--rule);
}