:root { color-scheme: light; --ink: #192d40; --muted: #596b7d; --link: #1756a4; --line: #dce3e9; }
* { box-sizing: border-box; }
html { scroll-padding-top: 6rem; }
body { margin: 0; background: #fff; color: var(--ink); font: 17px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 3px; overflow-wrap: anywhere; }
a:hover { color: #102f58; }
a:focus-visible, button:focus-visible, summary:focus-visible, .table-scroll:focus-visible { outline: 3px solid #4586db; outline-offset: 4px; }
.skip-link { position: absolute; left: 1rem; top: -5rem; z-index: 10; background: #fff; padding: .5rem 1rem; }
.skip-link:focus { top: 1rem; }
.topbar { position: sticky; top: 0; z-index: 5; min-height: 66px; padding: 12px max(24px, calc((100vw - 1280px)/2)); background: #fff; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: var(--ink); font-size: 16px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.topbar nav { display: flex; align-items: center; gap: 20px; font-size: 14px; }
button { border: 1px solid var(--line); border-radius: 6px; padding: 6px 12px; color: var(--ink); background: #fff; font: inherit; cursor: pointer; }
.layout { display: grid; grid-template-columns: 248px minmax(0, 920px); gap: 48px; max-width: 1280px; margin: 0 auto; padding: 46px 24px 100px; }
aside { align-self: start; position: sticky; top: 100px; max-height: calc(100vh - 130px); overflow: auto; font-size: 13px; line-height: 1.55; }
summary { color: var(--muted); font-weight: 700; cursor: pointer; padding-bottom: 12px; }
aside ol { list-style: none; padding: 0; margin: 0; }
aside li { padding: 0 0 12px; }
aside a { text-decoration: none; color: var(--muted); display: block; }
aside a:hover { color: var(--link); }
main { min-width: 0; }
h1 { font-size: clamp(30px, 4vw, 45px); line-height: 1.2; letter-spacing: -.025em; margin: 0 0 22px; }
h2 { font-size: 26px; line-height: 1.35; letter-spacing: -.015em; margin: 54px 0 20px; padding-top: 18px; border-top: 1px solid var(--line); }
h3 { font-size: 20px; line-height: 1.45; margin: 34px 0 16px; }
p { margin: 0 0 20px; }
li { margin-bottom: 9px; }
img { display: block; max-width: 100%; height: auto; }
.diagram { display: block; margin: 26px 0 18px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.table-scroll { margin: 24px 0; overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.55; }
th { background: #f1f5f8; font-weight: 650; text-align: left; }
th, td { padding: 13px 16px; vertical-align: top; border-bottom: 1px solid var(--line); min-width: 150px; }
tr:last-child td { border-bottom: none; }
blockquote { margin: 20px 0; border-left: 3px solid #b5cbe4; padding-left: 20px; color: #40566d; }
code { font-size: .88em; background: #f1f5f8; padding: 2px 5px; border-radius: 4px; }
pre { overflow-x: auto; padding: 18px; background: #f1f5f8; border-radius: 8px; }
pre code { padding: 0; }
@media (max-width: 1000px) { .layout { grid-template-columns: 195px minmax(0, 1fr); gap: 28px; } }
@media (max-width: 760px) {
  body { font-size: 16px; line-height: 1.7; }
  .topbar { padding: 12px 18px; gap: 12px; flex-wrap: wrap; }
  .topbar nav { gap: 12px; font-size: 13px; flex-wrap: wrap; }
  .layout { display: block; padding: 25px 18px 70px; }
  aside { position: static; max-height: none; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
  aside ol { columns: 2; column-gap: 20px; }
  aside li { break-inside: avoid; }
  h2 { font-size: 23px; }
}
@media print {
  .topbar, aside, .skip-link { display: none; }
  .layout { display: block; padding: 0; max-width: none; }
  body { font-size: 10pt; line-height: 1.5; }
  h1 { font-size: 24pt; }
  h2 { margin-top: 24px; font-size: 17pt; }
  h3 { font-size: 13pt; }
  h1, h2, h3 { break-after: avoid; }
  img, table { break-inside: avoid; }
  th, td { min-width: 0; padding: 7px; }
  table { font-size: 9pt; }
  a { color: inherit; }
  .table-scroll { overflow: visible; }
}