:root{--navy:#1F3B63;--navy-2:#16304f;--accent:#2563eb;--ink:#1f2937;
--muted:#6b7280;--bg:#ffffff;--bg-soft:#f5f7fa;--border:#e5e7eb}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
color:var(--ink);line-height:1.6;background:var(--bg)}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
.site-header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;min-height:60px;flex-wrap:wrap;gap:8px}
.brand{color:#fff;text-decoration:none;font-weight:700;font-size:1.1rem}
.brand span{color:#8ab4f8;font-weight:500}
.site-header nav a{color:#cbd5e1;text-decoration:none;margin-left:16px;font-size:.95rem}
.site-header nav a:hover{color:#fff}
main{padding:32px 0 56px}
h1{font-size:1.9rem;color:var(--navy);line-height:1.2;margin:0 0 .5em}
h2{font-size:1.4rem;color:var(--navy);margin:2em 0 .6em;border-bottom:2px solid var(--border);padding-bottom:.3em}
h3{font-size:1.15rem;color:var(--navy);margin:1.5em 0 .4em}
p{margin:.7em 0}
a{color:var(--accent)}
ul,ol{margin:.7em 0;padding-left:1.4em}
li{margin:.3em 0}
strong{color:var(--navy-2)}
blockquote{margin:1.2em 0;padding:.6em 1em;border-left:4px solid var(--accent);background:var(--bg-soft);color:var(--muted)}
table{border-collapse:collapse;width:100%;margin:1.2em 0;font-size:.93rem}
th,td{border:1px solid var(--border);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--bg-soft);color:var(--navy);font-weight:600}
tr:nth-child(even) td{background:#fafbfc}
code{background:var(--bg-soft);padding:2px 5px;border-radius:4px;
font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}
pre{background:#0f172a;color:#e2e8f0;padding:14px 16px;border-radius:8px;overflow-x:auto;font-size:.85rem}
pre code{background:none;padding:0;color:inherit}
.site-footer{background:var(--bg-soft);border-top:1px solid var(--border);color:var(--muted);padding:22px 0;font-size:.88rem}
.site-footer a{color:var(--accent)}
.cta{margin:2.5em 0 0;background:linear-gradient(135deg,var(--navy),#0b2447);color:#fff;border-radius:12px;padding:24px 28px}
.cta a{color:#8ab4f8;font-weight:600}