:root {
  color-scheme: light;
  --ink: #182c3d;
  --muted: #536573;
  --line: #dce4e8;
  --accent: #006e9c;
  --surface: #f3f7f9;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: #fff; font: 16px/1.7 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--accent); text-underline-offset: .2em; }
a:hover { color: #004763; }
a:focus-visible { outline: 3px solid #e4a63b; outline-offset: 4px; }
.skip { position: absolute; top: -100px; left: 1rem; padding: .5rem 1rem; background: #fff; z-index: 2; }
.skip:focus { top: .5rem; }
.header { max-width: 1200px; margin: auto; min-height: 90px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 1rem 2rem; border-bottom: 1px solid var(--line); }
.brand { text-decoration: none; color: var(--ink); font-size: 1.2rem; font-weight: 800; white-space: nowrap; }
.brand span { margin-left: .4rem; font-weight: 500; }
.header-links { display: flex; gap: 1.4rem; flex-wrap: wrap; font-size: .9rem; }
.header-links a { text-decoration: none; }
.shell { max-width: 1200px; margin: auto; display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 3.5rem; padding: 2.5rem 2rem 4rem; }
.eyebrow { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 700; color: var(--muted); margin: .5rem 0 1rem; }
.sidebar nav { display: grid; gap: .25rem; }
.sidebar nav a { padding: .45rem .7rem; margin-left: -.7rem; border-radius: 5px; color: var(--muted); text-decoration: none; }
.sidebar nav a:hover, .sidebar nav a[aria-current] { color: var(--accent); background: #eaf3f7; }
.sidebar-note { font-size: .8rem; color: var(--muted); margin-top: 2rem; }
main { min-width: 0; max-width: 780px; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.025em; scroll-margin-top: 1.5rem; }
h1 { font-size: clamp(1.9rem, 4vw, 2.65rem); margin: 0 0 1.5rem; }
h2 { font-size: 1.5rem; margin-top: 2.7rem; padding-top: .6rem; border-top: 1px solid var(--line); }
h3 { font-size: 1.12rem; margin-top: 2rem; }
li { margin: .35rem 0; }
p { margin: 1rem 0; }
code { font: .87em/1.6 ui-monospace, SFMono-Regular, Consolas, monospace; background: var(--surface); border-radius: 3px; padding: .12em .3em; overflow-wrap: anywhere; }
pre { background: #102938; color: #e4f2f8; padding: 1.1rem 1.25rem; border-radius: 7px; overflow: auto; }
pre code { background: none; padding: 0; color: inherit; overflow-wrap: normal; white-space: pre; }
table { display: block; overflow-x: auto; border-collapse: collapse; width: 100%; margin: 1.5rem 0; font-size: .91rem; }
th, td { padding: .75rem .85rem; border: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--surface); }
blockquote { margin: 1.5rem 0; border-left: 3px solid var(--accent); padding: .15rem 1.25rem; color: var(--muted); background: var(--surface); }
footer { max-width: 1200px; margin: auto; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 1rem; padding: 1.5rem 2rem; color: var(--muted); font-size: .8rem; }
@media (max-width: 760px) {
  .header { align-items: flex-start; flex-direction: column; padding: 1.2rem; gap: .75rem; }
  .header-links { gap: 1rem; }
  .shell { display: block; padding: 1.5rem 1.2rem 2.5rem; }
  .sidebar { border-bottom: 1px solid var(--line); padding-bottom: 1.3rem; margin-bottom: 2rem; }
  .sidebar nav { display: flex; flex-wrap: wrap; column-gap: .8rem; }
  .sidebar nav a { margin: 0; padding: .25rem .5rem; }
  .sidebar-note { display: none; }
  footer { padding: 1.2rem; flex-wrap: wrap; }
}