:root { color-scheme: light; --ink: #162d40; --muted: #496171; --paper: #f5f8f6; --line: #cddbd8; --teal: #00695c; --navy: #102e3b; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: #005a74; text-underline-offset: .18em; }
a:hover { color: #004a40; }
a:focus-visible, summary:focus-visible { outline: 3px solid #b65b00; outline-offset: 5px; }
.skip { position: absolute; top: -6rem; left: 1rem; background: white; padding: .75rem; z-index: 10; }
.skip:focus { top: 1rem; }
header { background: var(--navy); color: white; padding: 1rem max(5vw, calc((100vw - 1160px)/2)); }
header a { color: white; }
.brand { font-size: 1.2rem; font-weight: 750; text-decoration: none; letter-spacing: -.04em; }
nav { display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; margin-top: .75rem; font-size: .9rem; }
nav a[aria-current="page"] { color: #adf3db; font-weight: 700; }
main { max-width: 1160px; margin: auto; padding: 3.5rem 5vw 5rem; }
.eyebrow { text-transform: uppercase; font-weight: 750; letter-spacing: .16em; font-size: .75rem; color: var(--teal); }
h1 { font-size: clamp(2.2rem, 5.5vw, 4.4rem); line-height: 1.08; letter-spacing: -.055em; max-width: 900px; margin: .7rem 0 1.5rem; }
h2 { font-size: 1.8rem; line-height: 1.2; letter-spacing: -.035em; margin-top: 2.5rem; }
h3 { line-height: 1.3; }
.lead { font-size: 1.25rem; color: var(--muted); max-width: 780px; }
.hero { border-bottom: 1px solid var(--line); padding-bottom: 2.5rem; margin-bottom: 2rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.button { display: inline-block; padding: .8rem 1.2rem; background: var(--teal); color: white; border-radius: .35rem; font-weight: 700; text-decoration: none; }
.button:hover { background: #004c43; color: white; }
.button.secondary { background: white; border: 1px solid var(--line); color: var(--ink); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 1.2rem; }
.card, article { padding: 1.5rem; background: white; border: 1px solid var(--line); border-radius: .5rem; }
.card h2, .card h3, article h2 { margin-top: 0; }
.number { color: var(--teal); font: 700 .8rem/1.5 ui-monospace, monospace; }
.notice { border-left: 4px solid #a95700; background: #fff3e3; padding: 1rem 1.25rem; margin: 1.5rem 0; }
.tip { border-left-color: var(--teal); background: #e5f4ed; }
article { margin: 1.25rem 0; scroll-margin-top: 2rem; }
article p:last-child { margin-bottom: 0; }
.tag { display: inline-block; padding: .15rem .5rem; border: 1px solid var(--line); border-radius: 1rem; font-size: .75rem; margin-bottom: .5rem; }
code { background: #e9efed; padding: .12rem .3rem; border-radius: .2rem; font-size: .88em; overflow-wrap: anywhere; }
pre { background: var(--navy); color: #e5f6f0; padding: 1.5rem; border-radius: .4rem; overflow-x: auto; line-height: 1.55; font-size: .88rem; }
pre code { background: none; padding: 0; color: inherit; overflow-wrap: normal; }
table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
th, td { border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; padding: .8rem .6rem; }
th { background: #e7efeb; }
.table-wrap { overflow-x: auto; }
li { margin: .4rem 0; }
footer { border-top: 1px solid var(--line); padding: 2rem 5vw; max-width: 1160px; margin: auto; font-size: .85rem; color: var(--muted); }
@media (max-width: 600px) { main { padding-top: 2rem; } article { padding: 1rem; } nav { gap: .6rem 1rem; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }