:root{
  --navy:#0f4c6a;
  --ink:#111827;
  --muted:#5f6b7a;
  --line:#e5e7eb;
  --soft:#f7f7f7;
  --chip:#eef2f6;
  --sans:"Segoe UI","Helvetica Neue","Noto Sans","Trebuchet MS",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:#fff;
  line-height:1.55;
}

.article-shell{
  width:min(860px, calc(100vw - 32px));
  margin:0 auto;
  padding:28px 0 48px;
}

.article-top{
  display:flex;
  justify-content:space-between;
  gap:16px;
  align-items:center;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:24px;
}

.article-brand{
  font-size:14px;
  font-weight:700;
  color:var(--navy);
  text-decoration:none;
}

.article-home{
  font-size:13px;
  color:var(--muted);
}

.article-kicker{
  color:var(--muted);
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
}

.article-title{
  margin:7px 0 10px;
  font-size:clamp(30px, 4vw, 44px);
  line-height:1.08;
  letter-spacing:0;
}

.article-meta{
  color:var(--muted);
  font-size:14px;
  margin-bottom:14px;
}

.article-summary{
  margin:0 0 18px;
  color:#374151;
  font-size:17px;
}

.article-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0 0 28px;
}

.article-tag{
  display:inline-flex;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--chip);
  color:var(--navy);
  padding:5px 9px;
  font-size:12px;
  font-weight:700;
  text-decoration:none;
}

.article-body{
  font-size:17px;
}

.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4{
  line-height:1.22;
  margin:28px 0 10px;
}

.article-body h1{ font-size:30px; }
.article-body h2{ font-size:25px; }
.article-body h3{ font-size:21px; }
.article-body h4{ font-size:18px; }
.article-body p{ margin:13px 0; }
.article-body a{ color:var(--navy); font-weight:700; }
.article-body ul,
.article-body ol{ margin:12px 0 12px 24px; padding:0; }
.article-body li{ margin:6px 0; }
.article-body blockquote{
  margin:18px 0;
  padding:12px 16px;
  border-left:4px solid rgba(11,58,85,.35);
  background:var(--soft);
  color:#334155;
}
.article-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:26px 0;
}
.article-body code{
  font-family:var(--mono);
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:4px;
  padding:2px 5px;
  font-size:.92em;
}
.article-body pre{
  overflow:auto;
  padding:14px;
  background:#0b1220;
  color:#e5e7eb;
  border-radius:6px;
}
.article-body pre code{
  background:transparent;
  border:0;
  padding:0;
  color:inherit;
}
.article-body img{
  max-width:100%;
  height:auto;
  border:1px solid var(--line);
  border-radius:6px;
}
.article-body figure{
  margin:20px 0;
}
.article-body figcaption{
  margin-top:7px;
  color:var(--muted);
  font-size:13px;
}
.callout{
  margin:18px 0;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--soft);
}
.callout__title{
  font-weight:800;
  margin-bottom:5px;
}
.callout--tip{ background:#e9fbf1; }
.callout--warning{ background:#fff7e6; }
.callout--danger{ background:#ffecec; }
.callout--note,
.callout--info{ background:#e8f2fb; }

@media (max-width:640px){
  .article-shell{ width:min(100vw - 24px, 860px); padding-top:18px; }
  .article-top{ align-items:flex-start; flex-direction:column; }
  .article-body{ font-size:16px; }
}