:root {
    --primary: #5B5FBF;
    --primary-dark: #1C1E4D;
    --bg: #FBFAF6;
    --surface: #FFFFFF;
    --ink: #25272F;
    --muted: #5C606D;
    --border: #E3E2DD;
    --accent-bg: #E7E8FA;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 820px; margin: 0 auto; padding: 32px 22px 80px; }
header.page { border-bottom: 1px solid var(--border); padding-bottom: 22px; margin-bottom: 28px; }
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
    width: 40px; height: 40px; border-radius: 10px;
    background: var(--primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 18px;
}
.brand-name { font-size: 20px; font-weight: 700; }
.kicker { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .05em; margin-left: auto; }
h1 { font-size: 30px; line-height: 1.2; margin: 22px 0 6px; }
h2 { font-size: 21px; margin: 34px 0 10px; scroll-margin-top: 20px; }
h3 { font-size: 16px; margin: 20px 0 6px; }
p, li { color: var(--ink); }
a { color: var(--primary); }
.meta { color: var(--muted); font-size: 14px; }
.toc { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; margin: 24px 0; }
.toc h2 { margin: 0 0 8px; font-size: 15px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.toc ol { margin: 0; padding-left: 20px; }
.toc li { margin: 4px 0; }
.callout { background: var(--accent-bg); border-left: 4px solid var(--primary); border-radius: 8px; padding: 14px 16px; margin: 18px 0; }
table { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: 14px; }
th, td { border: 1px solid var(--border); padding: 9px 11px; text-align: left; vertical-align: top; }
th { background: var(--surface); }
.placeholder { color: #B23A2B; font-weight: 600; }
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 22px 0; }
@media (max-width: 620px) { .cards { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.card h3 { margin-top: 0; }
.card a { display: inline-block; margin-right: 14px; }
footer.page { margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; }
footer.page a { margin-right: 12px; }
code { background: var(--surface); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; font-size: 13px; }