:root {
  color-scheme: light;
  --ink: #172b3d;
  --navy: #102a43;
  --yellow: #ffc857;
  --paper: #fbf8ef;
  --line: #d9d2c4;
  --muted: #536777;
  font-family: system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  line-height: 1.85;
  color: var(--ink);
  background: var(--paper);
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; }
a { color: #064f83; text-underline-offset: .18em; }
a:hover { color: #102a43; }
.article-header { background: var(--navy); color: #fff; border-bottom: 5px solid var(--yellow); }
.article-header-inner, .article-main, .article-footer { width: min(820px, calc(100% - 32px)); margin: 0 auto; }
.article-header-inner { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.article-brand { color: #fff; text-decoration: none; font-weight: 750; }
.article-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.article-nav a { color: #fff; }
.article-main { padding: 34px 0 56px; }
.breadcrumb { margin: 0 0 24px; font-size: .88rem; }
.eyebrow { margin: 0; color: #725a19; font-size: .82rem; font-weight: 750; letter-spacing: .08em; }
h1 { max-width: 760px; margin: 8px 0 12px; color: var(--navy); font-size: clamp(2rem, 7vw, 3.25rem); line-height: 1.3; letter-spacing: -.035em; }
.description { margin: 0; color: var(--muted); font-size: 1.12rem; }
.updated { margin: 8px 0 30px; color: var(--muted); font-size: .82rem; }
h2 { margin: 40px 0 12px; color: var(--navy); font-size: clamp(1.35rem, 4vw, 1.8rem); line-height: 1.4; }
h3 { margin: 26px 0 8px; color: var(--navy); font-size: 1.12rem; }
p, ul, ol { margin-top: 0; }
li + li { margin-top: 6px; }
.example, .note { margin: 20px 0; padding: 16px 18px; border: 1px solid var(--line); border-left: 5px solid var(--yellow); border-radius: 8px; background: #fff; }
.example p:last-child, .note p:last-child { margin-bottom: 0; }
.steps { padding-left: 1.5rem; }
.steps li { padding-left: .25rem; }
.sample-link { display: inline-flex; align-items: center; min-height: 44px; margin: 8px 0; font-weight: 700; }
.tool-link { display: inline-flex; align-items: center; min-height: 48px; margin: 10px 0; padding: 8px 16px; border: 2px solid var(--navy); border-radius: 6px; background: var(--yellow); color: var(--navy); font-weight: 750; text-decoration: none; }
.table-wrap { margin: 16px 0 22px; overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #eef2f3; color: var(--navy); }
tr:last-child th, tr:last-child td { border-bottom: 0; }
code { padding: .08em .3em; border-radius: 4px; background: #edf0ef; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.article-footer { padding: 18px 0 38px; border-top: 1px solid var(--line); }
.article-footer nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
:focus-visible { outline: 3px solid #1367a1; outline-offset: 3px; }
@media (max-width: 520px) {
  .article-header-inner { align-items: flex-start; flex-direction: column; justify-content: center; padding: 12px 0; }
  .article-nav { gap: 6px 14px; }
  .article-main { padding-top: 26px; }
  .example, .note { padding: 14px; }
  th, td { padding: 8px; }
}
