:root{
  --navy:#1a2940; --ink:#1a1f2b; --muted:#5b6473; --line:#e6e9ef;
  --accent:#2f6df0; --bg:#ffffff; --soft:#f6f8fb;
}
*{box-sizing:border-box}
body{margin:0;font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
.wrap{max-width:860px;margin:0 auto;padding:0 1.25rem}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.2;letter-spacing:-.02em;color:var(--navy)}
h1{font-size:clamp(2rem,5vw,2.8rem);margin:.2em 0 .3em}
.muted{color:var(--muted);font-size:.92rem}

/* header */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:5}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;font-size:1.25rem;color:var(--navy)}
.brand span{color:var(--accent)}
.site-header nav a{margin-left:1.25rem;color:var(--ink);font-weight:500;font-size:.95rem}

/* hero */
.hero{padding:3rem 0 1rem;border-bottom:1px solid var(--line)}
.hero p.lede{font-size:1.2rem;color:var(--muted);max-width:36rem}
.featured{margin-top:1.75rem;padding:1.1rem 1.25rem;background:var(--soft);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:0 10px 10px 0;max-width:42rem}
.featured-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-weight:700;margin-bottom:.35rem}
.featured-link{display:block;font-size:1.08rem;font-weight:700;color:var(--navy);line-height:1.35}
.featured-link:hover{color:var(--accent);text-decoration:none}
.featured-desc{margin:.45rem 0 0;color:var(--muted);font-size:.95rem}

/* article cards */
.cards{display:grid;gap:1rem;margin:2rem 0}
.card{border:1px solid var(--line);border-radius:12px;padding:1.25rem 1.4rem;transition:.15s}
.card:hover{border-color:var(--accent);box-shadow:0 4px 18px rgba(26,41,64,.06)}
.card .cat{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-weight:700}
.card h3{margin:.35rem 0 .35rem;font-size:1.25rem}
.card p{margin:0;color:var(--muted);font-size:.96rem}

/* article body */
article.post{padding:2.5rem 0}
article.post .meta{color:var(--muted);font-size:.9rem;margin-bottom:1.5rem}
article.post h2{margin-top:2rem;border-top:1px solid var(--line);padding-top:1.5rem}
article.post table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.95rem}
article.post th,article.post td{border:1px solid var(--line);padding:.6rem .7rem;text-align:left}
article.post th{background:var(--soft);color:var(--navy)}
.cta{display:inline-block;background:var(--accent);color:#fff !important;padding:.6rem 1.1rem;border-radius:8px;font-weight:600;text-decoration:none !important;margin:.4rem 0}
.callout{background:var(--soft);border-left:3px solid var(--accent);padding:1rem 1.2rem;border-radius:0 8px 8px 0;margin:1.5rem 0;font-size:.95rem}

/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:3rem;padding:2rem 0;background:var(--soft)}
.site-footer p{margin:.3rem 0}