:root {
  color-scheme: dark;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #e6e9ef;
  background: #070e16;
  line-height: 1.6;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(rgb(0 0 0 / 65%), rgb(0 0 0 / 82%)), url("/assets/obn-bg-4k.webp") center / cover fixed;
}
main { width: min(100% - 40px, 800px); margin: 0 auto; padding: 28px 0; }
nav { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: .9rem; color: #a9b9c8; }
a { color: #7ce4d3; text-underline-offset: 4px; }
a:hover { color: #c0fff4; }
a:focus-visible, summary:focus-visible, pre:focus-visible { outline: 2px solid #7ce4d3; outline-offset: 5px; }
header { padding: 48px 0 28px; text-align: center; }
header img { display: block; margin: 0 auto 20px; }
.eyebrow { color: #7ce4d3; font-size: .75rem; letter-spacing: .15em; text-transform: uppercase; }
h1 { margin: 8px 0; font-size: clamp(1.7rem, 6vw, 2.6rem); line-height: 1.2; overflow-wrap: anywhere; }
.intro { margin: 12px 0; color: #b5c2cf; }
h2 { font-size: 1rem; margin: 0 0 16px; }
p { margin: 10px 0; }
.card { margin: 16px 0; padding: 24px; border: 1px solid #2c4052; border-radius: 16px; background: rgb(10 22 35 / 94%); }
.connection { border-color: #406f70; }
.endpoint { font-size: clamp(1rem, 4.5vw, 1.6rem); color: #b4fff0; }
code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; overflow-wrap: anywhere; }
summary { cursor: pointer; color: #7ce4d3; padding: 12px 0; }
pre { padding: 16px; overflow-x: auto; background: #070e16; border-radius: 8px; font-size: .85rem; }
pre code { overflow-wrap: normal; }
dl { margin: 0; }
dl > div { display: grid; grid-template-columns: 155px minmax(0, 1fr); gap: 12px; padding: 9px 0; border-top: 1px solid #233648; }
dl > div:first-child { border-top: 0; }
dt { color: #a9b9c8; }
dd { margin: 0; overflow-wrap: anywhere; }
dd code { font-size: .85rem; }
.notice, .muted { color: #a9b9c8; font-size: .88rem; }
.notice { border-left: 2px solid #517e82; padding-left: 14px; margin-bottom: 20px; }
.button { display: inline-block; margin-top: 12px; padding: 10px 18px; border-radius: 999px; background: #b4fff0; color: #09201e; text-decoration: none; font-weight: 600; }
.button:hover { background: #d6fff7; color: #09201e; }
footer { padding: 28px 0 12px; text-align: center; }
footer p { color: #a9b9c8; font-size: .85rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
@media (max-width: 520px) {
  main { width: calc(100% - 24px); padding-top: 20px; }
  header { padding-top: 32px; }
  .card { padding: 18px; }
  dl > div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}