:root {
  color-scheme: light;
  --ink: #142033;
  --muted: #3d4d63;
  --line: #d5e0ea;
  --paper: #f4f7fb;
  --card: #ffffff;
  --link: #0b6e91;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", Trebuchet MS, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
}
.wrap {
  width: min(760px, calc(100% - 28px));
  margin: 0 auto;
  padding: 28px 0 64px;
}
header.top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
}
.brand {
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink);
}
.back {
  color: var(--link);
  font-weight: 700;
  font-size: 14px;
}
h1 {
  margin: 0 0 8px;
  font-size: 28px;
  line-height: 1.2;
}
.meta, .lead {
  margin: 0 0 16px;
  color: var(--muted);
}
article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 20px;
}
h2 {
  margin: 22px 0 8px;
  font-size: 18px;
}
h2:first-child { margin-top: 0; }
p, li { font-size: 16px; }
ul, ol { margin: 8px 0 0; padding-left: 1.2em; }
li { margin: 4px 0; }
a { color: var(--link); }
nav.docs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
}
nav.docs a {
  display: inline-block;
  padding: 8px 10px;
  border-radius: 999px;
  background: #e7f3f8;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
}
nav.docs a[aria-current="page"] {
  background: #0b6e91;
  color: #fff;
}
.card-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.card-list a {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  text-decoration: none;
}
.card-list strong { display: block; color: var(--ink); }
.card-list span { display: block; margin-top: 4px; color: var(--muted); font-size: 14px; }
footer.note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}
.seller {
  margin: 0;
  padding: 0;
  list-style: none;
}
.seller li { margin: 6px 0; }
.paymarks {
  margin: 12px 0 0;
  font-weight: 700;
}
.paymarks img {
  display: block;
  height: 64px;
  width: auto;
  margin-bottom: 6px;
  background: #fff;
}