/* Static OAuth information site: no cookies, tracking, fonts, scripts, or backend. */
:root {
  color-scheme: light;
  --bg: #f5f6f8;
  --surface: #ffffff;
  --ink: #132133;
  --muted: #566476;
  --accent: #245bdf;
  --line: #dfe5ed;
  --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--accent); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 3px; }
.wrap { width: min(100% - 40px, 960px); margin-inline: auto; }
header { border-bottom: 1px solid var(--line); background: rgba(255,255,255,.96); }
nav { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-block: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 750; letter-spacing: -.03em; }
.brand-mark { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: #dce6ff; color: #1c4ecb; font-weight: 800; font-size: 17px; }
.links { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; }
.links a { color: var(--muted); font-size: .88rem; text-decoration: none; }
.links a[aria-current="page"] { color: var(--ink); font-weight: 650; }
main { padding-block: 74px 86px; }
.eyebrow { color: var(--accent); font-weight: 750; letter-spacing: .14em; text-transform: uppercase; font-size: .77rem; }
h1, h2, h3 { line-height: 1.19; letter-spacing: -.035em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.1rem); max-width: 750px; margin: 17px 0 22px; }
h2 { font-size: 1.6rem; margin: 0 0 14px; }
h3 { font-size: 1.14rem; margin: 26px 0 8px; }
.lead { max-width: 710px; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.28rem); }
.note { display: inline-block; padding: 6px 13px; border: 1px solid #b4c9fa; border-radius: 999px; background: #e9efff; color: #234ca5; font-size: .79rem; font-weight: 700; letter-spacing: .025em; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(24px, 4vw, 38px); margin-top: 36px; }
.panel p:last-child { margin-bottom: 0; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 26px; }
.card { background: white; border: 1px solid var(--line); border-radius: 17px; padding: 22px; }
.card h2 { font-size: 1.06rem; margin-bottom: 8px; }
.card p { font-size: .92rem; color: var(--muted); margin: 0; }
.article { max-width: 810px; }
.article h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
.article h2 { margin-top: 37px; }
.article p, .article li { color: #3d4b5c; }
.article ul { padding-left: 25px; }
.meta { font-size: .88rem; color: var(--muted); }
.linkbox { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 28px; }
.linkbox a { display: inline-block; padding: 11px 17px; background: #e8eeff; border: 1px solid #b7cafa; border-radius: 12px; font-weight: 650; text-decoration: none; }
footer { border-top: 1px solid var(--line); background: #fff; color: var(--muted); font-size: .88rem; padding-block: 28px; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; align-items: center; gap: 16px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
footer a { color: var(--muted); }
@media(max-width: 700px) {
  nav { align-items: flex-start; flex-direction: column; }
  main { padding-block: 48px 64px; }
  .cards { grid-template-columns: 1fr; }
  .links { gap: 14px; }
}
@media(prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }