:root {
  --ink: #071c2b;
  --ink-2: #102f43;
  --orange: #ff6b2c;
  --paper: #f7fafc;
  --white: #ffffff;
  --muted: #526574;
  --line: #d8e2e8;
  --max: 860px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-size: 17px;
  line-height: 1.65;
}
a { color: var(--ink-2); text-underline-offset: 3px; }
.topbar { background: var(--ink); color: var(--white); }
.nav { width: min(calc(100% - 40px), 1100px); min-height: 74px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--white); font-weight: 850; letter-spacing: -.03em; text-decoration: none; }
.brand-mark { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 12px; background: var(--orange); font-size: 23px; }
.brand-mark::before { content: "7"; }
.back { color: var(--white); font-size: 15px; font-weight: 750; }
main { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 72px 0 90px; }
.eyebrow { margin: 0 0 10px; color: #b13b0a; font-size: 14px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
h1 { margin: 0 0 14px; font-size: clamp(42px, 7vw, 66px); line-height: 1; letter-spacing: -.05em; }
.intro { margin: 0 0 44px; color: var(--muted); font-size: 19px; }
.panel { padding: 30px; background: var(--white); border: 1px solid var(--line); border-radius: 18px; }
h2 { margin: 34px 0 8px; font-size: 25px; line-height: 1.2; }
.panel h2:first-child { margin-top: 0; }
p, li { color: var(--ink-2); }
ul { padding-left: 24px; }
.updated { margin-top: 36px; color: var(--muted); font-size: 14px; }
footer { padding: 35px 0; background: var(--ink); color: #c7d6df; }
.footer-inner { width: min(calc(100% - 40px), 1100px); margin: auto; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.footer-inner a { color: var(--white); }
@media (max-width: 560px) {
  .nav, main, .footer-inner { width: min(calc(100% - 28px), var(--max)); }
  main { padding-top: 52px; }
  .panel { padding: 22px; }
}