:root {
  color-scheme: light;
  --ink: #18201f;
  --muted: #5d6b69;
  --line: #d6e0de;
  --paper: #fffdf7;
  --mint: #d9f4ea;
  --mint-strong: #2f735f;
  --cyan: #25bce1;
  --coral: #ff9f86;
  --lavender: #e9e3ff;
  --focus: #006e8b;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #f5faf9; font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.65; }
a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { color: #096b82; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.skip { position: fixed; left: 12px; top: -80px; z-index: 9; padding: 10px 14px; border-radius: 8px; background: #fff; }
.skip:focus { top: 12px; }
.site-header, .site-footer, main { width: min(1040px, calc(100% - 32px)); margin-inline: auto; }
.site-header { min-height: 74px; display: flex; align-items: center; gap: 26px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 9px; margin-right: auto; text-decoration: none; font-size: 19px; font-weight: 850; letter-spacing: -.03em; }
.brand img { width: 28px; height: 28px; }
.site-header nav, .site-footer nav { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.site-header nav a, .site-footer nav a { color: var(--muted); font-size: 13px; font-weight: 700; text-decoration: none; }
.open-app { min-height: 42px; display: inline-flex; align-items: center; padding: 0 16px; border: 1px solid #183b35; border-radius: 12px; color: #fff !important; background: #183b35; }
main { padding: 58px 0 80px; }
.hero { position: relative; overflow: hidden; padding: clamp(30px, 6vw, 68px); border: 1px solid var(--line); border-radius: 28px; background: var(--paper); box-shadow: 0 10px 30px rgba(28, 63, 58, .06); }
.hero::before { content: ""; position: absolute; width: 190px; height: 190px; right: -85px; top: -95px; border: 38px solid rgba(37, 188, 225, .17); border-radius: 50%; }
.hero::after { content: ""; position: absolute; width: 80px; height: 80px; right: 80px; bottom: -50px; border: 20px solid rgba(255, 159, 134, .18); border-radius: 50%; }
.eyebrow { margin: 0 0 10px; color: var(--mint-strong); font-size: 12px; font-weight: 850; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.14; letter-spacing: -.035em; }
h1 { max-width: 780px; margin: 0; font-size: clamp(40px, 7vw, 70px); }
.lede { max-width: 720px; margin: 20px 0 0; color: var(--muted); font-size: clamp(17px, 2vw, 20px); }
.updated { margin: 18px 0 0; color: var(--muted); font-size: 13px; }
.content { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 48px; margin-top: 42px; }
.prose { min-width: 0; }
.prose section { scroll-margin-top: 24px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.prose section:first-child { padding-top: 0; }
.prose h2 { margin: 0 0 12px; font-size: clamp(25px, 3vw, 34px); }
.prose h3 { margin: 24px 0 8px; font-size: 19px; }
.prose p, .prose li { color: #3e4b49; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li + li { margin-top: 8px; }
.toc { align-self: start; position: sticky; top: 20px; padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.82); }
.toc strong { display: block; margin-bottom: 8px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.toc a { display: block; padding: 5px 0; color: var(--muted); font-size: 13px; text-decoration: none; }
.faq { display: grid; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.faq summary { cursor: pointer; padding: 18px 20px; font-weight: 800; }
.faq details p { margin: 0; padding: 0 20px 20px; }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.card { padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.card h2, .card h3 { margin-top: 0; }
.contact-card { padding: 28px; border: 1px solid #aac9c1; border-radius: 20px; background: #edf8f4; }
.contact-card a { font-weight: 800; }
.notice { padding: 18px 20px; border-left: 4px solid var(--cyan); border-radius: 0 12px 12px 0; background: #edf9fc; }
.site-footer { min-height: 120px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 22px; border-top: 1px solid var(--line); }
.site-footer small { color: var(--muted); }
@media (max-width: 760px) {
  .site-header { min-height: 66px; gap: 12px; }
  .site-header nav { display: none; }
  .open-app { margin-left: auto; }
  main { padding-top: 24px; }
  .hero { padding: 30px 22px; border-radius: 21px; }
  .content { grid-template-columns: 1fr; gap: 24px; margin-top: 28px; }
  .toc { position: static; order: -1; }
  .card-grid { grid-template-columns: 1fr; }
  .site-footer { padding: 26px 0; grid-template-columns: 1fr; }
  .site-footer nav { gap: 12px 16px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }