:root{
  --blue:#2E6DE0;
  --blue-dark:#1F4FB0;
  --ink:#1E2430;
  --ink-soft:#5B6473;
  --bg:#F4F6FA;
  --card-line:#E4E8F0;
  --code-bg:#1E2430;
  --code-text:#D7E3FF;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);
  background:#fff;
  line-height:1.6;
}
img{max-width:100%;display:block;}
a{color:var(--blue);text-decoration:none;}
a:hover{text-decoration:underline;}
.container{max-width:1080px;margin:0 auto;padding:0 20px;}
code, pre{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
pre{
  background:var(--code-bg);color:var(--code-text);padding:16px 18px;border-radius:8px;
  overflow-x:auto;font-size:13.5px;line-height:1.6;
}
code{background:#EEF1F8;padding:2px 6px;border-radius:4px;font-size:13.5px;color:#2A3242;}
pre code{background:none;padding:0;color:inherit;}

/* header */
.site-header{background:var(--ink);color:#fff;padding:16px 0;}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.site-header .logo{color:#fff;font-size:18px;font-weight:700;text-decoration:none;display:flex;align-items:center;gap:8px;}
.site-header .logo .dot{color:var(--blue);}
.site-header nav{display:flex;gap:16px;flex-wrap:wrap;}
.site-header nav a{color:#AEB7C7;font-size:14px;text-decoration:none;}
.site-header nav a:hover{color:#fff;}
@media (max-width:760px){.site-header nav{display:none;}}

/* breadcrumbs */
.breadcrumb{font-size:13px;color:var(--ink-soft);padding:14px 0;}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--blue);}

/* hero on home */
.hero{background:linear-gradient(135deg,#1E2430,#2A3350);color:#fff;padding:60px 0;}
.hero h1{font-size:32px;margin:0 0 14px;font-weight:800;}
.hero p{color:#C3CAD9;font-size:16px;max-width:640px;margin:0;}

/* page hero (articles) */
.page-hero{background:var(--bg);padding:34px 0;border-bottom:1px solid var(--card-line);}
.page-hero h1{font-size:26px;margin:0 0 8px;}
.page-hero .meta{font-size:13px;color:var(--ink-soft);}
.page-hero .meta span{margin-right:14px;}

section{padding:46px 0;}
h2.section-title{font-size:22px;font-weight:700;margin:0 0 24px;}

/* category pills */
.cat-row{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 0;}
.cat-pill{
  display:inline-block;background:#EEF1F8;color:var(--ink-soft);font-size:12.5px;
  padding:6px 12px;border-radius:20px;text-decoration:none;
}
.cat-pill:hover{background:var(--blue);color:#fff;text-decoration:none;}

/* article list / cards */
.post-list{display:grid;gap:18px;}
.post-card{
  display:block;background:#fff;border:1px solid var(--card-line);border-radius:10px;
  padding:20px 22px;text-decoration:none;color:inherit;
}
.post-card:hover{border-color:var(--blue);text-decoration:none;}
.post-card .cat{font-size:12px;color:var(--blue);font-weight:700;text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;}
.post-card h3{margin:0 0 8px;font-size:18px;color:var(--ink);}
.post-card p{margin:0 0 8px;color:var(--ink-soft);font-size:14.5px;}
.post-card .meta{font-size:12.5px;color:#9AA3B2;}

/* article prose */
.prose{max-width:760px;}
.prose p{margin:0 0 16px;font-size:16px;color:#2A3242;}
.prose h2{font-size:21px;margin:30px 0 12px;}
.prose h3{font-size:18px;margin:24px 0 10px;}
.prose ul,.prose ol{margin:0 0 16px;padding-left:22px;}
.prose li{margin-bottom:6px;font-size:16px;color:#2A3242;}
.prose blockquote{
  margin:0 0 16px;padding:12px 18px;border-left:3px solid var(--blue);background:var(--bg);
  color:var(--ink-soft);font-size:15px;
}

.layout{display:flex;gap:40px;align-items:flex-start;flex-wrap:wrap;}
.layout .main{flex:1 1 520px;}
.sidebar{flex:0 0 260px;display:grid;gap:18px;}
.sidebar .box{background:var(--bg);border:1px solid var(--card-line);border-radius:10px;padding:18px;}
.sidebar .box h4{margin:0 0 12px;font-size:14px;text-transform:uppercase;letter-spacing:.4px;color:var(--ink-soft);}
.sidebar .box ul{list-style:none;margin:0;padding:0;display:grid;gap:9px;}
.sidebar .box ul a{font-size:14px;color:var(--ink);}
.sidebar .box ul a:hover{color:var(--blue);}

/* related */
.related{border-top:1px solid var(--card-line);margin-top:40px;padding-top:30px;}

footer.site-footer{background:var(--ink);color:#9AA3B2;padding:30px 0;font-size:13.5px;}
footer.site-footer a{color:#C3CAD9;}
footer.site-footer .bar{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;}

@media (max-width:760px){
  .hero h1{font-size:25px;}
  .page-hero h1{font-size:21px;}
}