:root {
  --navy: #0b1f3a;
  --gold: #c9a227;
  --text: #1c2430;
  --muted: #5a6575;
  --bg: #f7f8fa;
  --white: #ffffff;
}

* { box-sizing: border-box; }

html { font-size: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

a { color: var(--navy); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: #23497f; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--white); padding: .5rem 1rem; z-index: 10;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.wrap { max-width: 860px; margin: 0 auto; padding: 0 1.25rem; }

header.site {
  background: var(--navy);
  color: var(--white);
  border-bottom: 4px solid var(--gold);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; padding-top: 1rem; padding-bottom: 1rem;
}
.brand { display: flex; align-items: center; gap: .75rem; color: var(--white); text-decoration: none; }
.brand img { width: 48px; height: 48px; display: block; }
.brand span { font-size: 1.25rem; font-weight: 700; letter-spacing: .02em; }
nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 1.25rem; flex-wrap: wrap; }
nav a { color: var(--white); text-decoration: none; font-weight: 500; }
nav a:hover { color: var(--gold); }

main { padding: 2.5rem 0 3rem; }
main .wrap > section, main .wrap > article {
  background: var(--white);
  border-radius: 8px;
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(11, 31, 58, .08);
}

h1 { color: var(--navy); font-size: 2rem; line-height: 1.25; margin: 0 0 1rem; }
h2 { color: var(--navy); font-size: 1.35rem; margin: 1.75rem 0 .5rem; }
h2:first-child { margin-top: 0; }
h3 { color: var(--navy); font-size: 1.1rem; margin: 1.25rem 0 .35rem; }

.lead { font-size: 1.15rem; color: var(--muted); }
.meta { color: var(--muted); font-size: .95rem; }
code { background: #eef1f5; padding: .1rem .35rem; border-radius: 4px; font-size: .92em; word-break: break-all; }

footer.site {
  background: var(--navy);
  color: #d6dbe3;
  border-top: 4px solid var(--gold);
  padding: 1.5rem 0;
  font-size: .95rem;
}
footer.site a { color: var(--white); }
footer.site ul { list-style: none; padding: 0; margin: .5rem 0 0; display: flex; gap: 1.25rem; flex-wrap: wrap; }

@media (max-width: 600px) {
  h1 { font-size: 1.6rem; }
  main .wrap > section, main .wrap > article { padding: 1.25rem; }
}