:root {
  --ink: #111827;
  --muted: #566173;
  --soft: #f4f7f9;
  --panel: #fff;
  --line: #d9e1e8;
  --blue: #1d4ed8;
  --green: #0f766e;
  --navy: #0f172a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}
.doc {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  padding: 42px 22px 72px;
}
.back {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--blue);
  font-weight: 850;
  text-decoration: none;
}
h1 {
  margin: 0 0 16px;
  color: var(--navy);
  font-size: clamp(38px, 7vw, 68px);
  line-height: .98;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}
h2 {
  margin: 30px 0 10px;
  color: var(--navy);
  font-size: 24px;
}
h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 19px;
}
p,
li {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
p { margin: 0 0 14px; }
a {
  overflow-wrap: anywhere;
}
ul {
  margin: 0;
  padding-left: 22px;
}
table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  margin: 16px 0 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}
th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 16px;
  line-height: 1.45;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}
th {
  color: var(--navy);
  background: #eaf0f6;
  font-weight: 850;
}
tr:last-child td {
  border-bottom: 0;
}
.callout {
  margin: 22px 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--blue);
  border-radius: 8px;
  background: var(--panel);
}
.doc-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin: 16px 0 22px;
}
.doc-card-grid article {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.doc-card-grid p {
  margin-bottom: 10px;
  font-size: 16px;
}
code,
pre {
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}
pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  line-height: 1.5;
}
@media (max-width: 540px) {
  .doc {
    max-width: 100%;
    padding: 42px 18px 72px;
  }
  h1 {
    font-size: 32px;
    line-height: 1.05;
  }
  p,
  li {
    font-size: 17px;
  }
  th,
  td {
    padding: 10px;
    font-size: 14px;
  }
  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  pre {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }
  .doc > h1,
  .doc > h2,
  .doc > h3,
  .doc > p,
  .callout {
    max-width: calc(100vw - 36px);
  }
  .doc-card-grid {
    grid-template-columns: 1fr;
  }
  thead,
  tbody,
  tr {
    width: 100%;
  }
}