:root {
  --navy: #002676;
  --blue: #004aae;
  --gold: #fdb515;
  --ink: #1a1f2e;
  --muted: #4a5a85;
  --bg: #ffffff;
  --panel: #f2f4f8;
  --line: #d6dbe6;
}
* { box-sizing: border-box; }
html { font-size: 17px; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; line-height: 1.6; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--gold); color: var(--navy); padding: 8px 12px; }
.skip:focus { left: 8px; z-index: 10; }
.site-header { background: var(--navy); color: #fff; border-bottom: 5px solid var(--gold); }
.site-header .wrap { padding-top: 14px; padding-bottom: 10px; }
.brand { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.1rem; }
.brand .code { color: var(--gold); margin-right: 6px; }
nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 18px; padding: 0; margin: 10px 0 0; }
nav a { color: #fff; text-decoration: none; font-size: 0.95rem; padding: 2px 0; border-bottom: 2px solid transparent; }
nav a:hover, nav a[aria-current="page"] { border-bottom-color: var(--gold); }
main { padding-top: 28px; padding-bottom: 48px; }
h1 { color: var(--navy); font-size: 2rem; line-height: 1.2; margin: 0 0 12px; }
h2 { color: var(--navy); font-size: 1.4rem; margin-top: 2rem; border-bottom: 2px solid var(--line); padding-bottom: 4px; }
h3 { color: var(--navy); font-size: 1.1rem; margin: 0 0 6px; }
.card h2 { font-size: 1.1rem; border-bottom: none; margin: 0 0 6px; padding: 0; }
a { color: var(--blue); }
a:focus-visible { outline: 3px solid var(--navy); outline-offset: 2px; }
nav a:focus-visible, .brand:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
code { background: var(--panel); padding: 1px 5px; border-radius: 4px; font-size: 0.92em; }
table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 0.95rem; }
@media (max-width: 700px) { table { display: block; overflow-x: auto; } }
th { background: var(--navy); color: #fff; text-align: left; }
th, td { padding: 8px 10px; border: 1px solid var(--line); vertical-align: top; }
tbody tr:nth-child(even) { background: var(--panel); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin: 24px 0; }
.card { background: var(--panel); border-top: 5px solid var(--gold); padding: 16px 18px; }
.card ul { padding-left: 18px; margin: 6px 0 0; }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; padding: 18px 0 28px; }