:root {
  color-scheme: dark;
  --bg: #081420;
  --card: #102841;
  --card-light: #173752;
  --border: #31516c;
  --text: #f0f7fc;
  --muted: #b7cad9;
  --accent: #72e5f1;
  --accent-soft: #132f42;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--accent); text-underline-offset: 3px; }
a:hover, a:focus-visible { color: #b9f8ff; }
:focus-visible { outline: 3px solid #b9f8ff; outline-offset: 3px; }
.wrap { width: min(100% - 36px, 1000px); margin-inline: auto; }
.skip { position: absolute; left: 16px; top: -80px; background: #fff; color: #071522; padding: 8px 14px; z-index: 3; }
.skip:focus { top: 8px; }
.site-header { border-bottom: 1px solid var(--border); }
.site-header .wrap, .site-footer .wrap { display: flex; gap: 18px; align-items: center; justify-content: space-between; flex-wrap: wrap; padding-block: 17px; }
.brand { display: inline-flex; gap: 10px; align-items: center; color: var(--text); font-weight: 750; text-decoration: none; }
.brand img { width: 38px; height: 38px; }
.site-header nav, .site-footer nav { display: flex; flex-wrap: wrap; gap: 16px; }
.hero { padding: 58px 0 34px; background: radial-gradient(ellipse 80% 75% at 50% 0%, #173b59, transparent); }
.eyebrow { color: var(--accent); font-size: .82rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
h1 { max-width: 760px; margin: 8px 0 18px; font-size: clamp(2.1rem, 5vw, 3.6rem); line-height: 1.15; }
h2 { font-size: clamp(1.6rem, 3vw, 2rem); line-height: 1.3; margin: 0 0 15px; }
h3 { font-size: 1.22rem; margin: 22px 0 8px; }
p, li { max-width: 75ch; }
.lead { color: var(--muted); font-size: 1.15rem; }
.contents { display: flex; flex-wrap: wrap; gap: 9px; padding: 0; margin: 28px 0 0; list-style: none; }
.contents a { display: block; padding: 7px 13px; border: 1px solid var(--border); border-radius: 999px; background: var(--accent-soft); text-decoration: none; }
main section { padding: 34px 0; border-top: 1px solid var(--border); scroll-margin-top: 18px; }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.card, .callout { background: var(--card); border: 1px solid var(--border); border-radius: 15px; padding: 20px 23px; }
.card h3 { margin-top: 0; }
.callout { background: var(--accent-soft); }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 18px 0 0; }
.steps > li { counter-increment: step; position: relative; padding: 0 0 20px 48px; }
.steps > li::before { content: counter(step); position: absolute; left: 0; top: 1px; width: 31px; height: 31px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: #061a29; font-size: .94rem; font-weight: 800; }
.steps strong { display: block; }
code { background: #051321; border: 1px solid var(--border); border-radius: 5px; color: #e7faff; padding: .1em .35em; overflow-wrap: anywhere; }
.table-scroll { overflow-x: auto; }
table { width: 100%; min-width: 560px; border-collapse: collapse; }
th, td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); padding: 11px 14px; }
th { color: var(--accent); background: var(--card); }
tr:nth-child(even) td { background: #0c2033; }
.site-footer { border-top: 1px solid var(--border); color: var(--muted); font-size: .91rem; }
@media (max-width: 700px) { .cards { grid-template-columns: 1fr; } .hero { padding-top: 38px; } }