:root {
  --sembee-blue: #175b97;
  --sembee-blue-dark: #11456f;
  --publication: #b85f00;
  --publication-dark: #884600;
  --ink: #222b35;
  --muted: #66717d;
  --line: #d9dde2;
  --soft: #f4f5f6;
  --paper: #ffffff;
  --footer: #20272e;
  --link: #145c91;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
a { color: var(--link); text-decoration: underline; text-underline-offset: 2px; }
a:hover, a:focus { color: #0d3d62; }
img { max-width: 100%; height: auto; }

.sembee-header { background: #fff; border-bottom: 1px solid var(--line); }
.sembee-header-inner,
.publication-inner,
.publication-nav-inner,
.page-shell,
.related-inner,
.site-footer-inner {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}
.sembee-header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.sembee-brand { display: flex; align-items: center; gap: 18px; text-decoration: none; }
.sembee-brand img { width: 142px; display: block; }
.sembee-tagline { color: #4f5a65; font-size: 15px; border-left: 1px solid var(--line); padding-left: 18px; }
.sembee-nav { display: flex; gap: 26px; align-items: center; }
.sembee-nav a { color: #303a44; text-decoration: none; font-weight: 600; font-size: 15px; }
.sembee-nav a:hover { color: var(--sembee-blue); }

.publication-bar { background: var(--publication); color: #fff; }
.publication-inner { min-height: 82px; display: flex; align-items: center; }
.publication-name { margin: 0; font-size: 34px; line-height: 1.15; font-weight: 700; letter-spacing: -0.5px; }
.publication-name a { color: #fff; text-decoration: none; }
.publication-nav { background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 1px 2px rgba(0,0,0,.03); }
.publication-nav-inner { min-height: 54px; display: flex; align-items: center; gap: 30px; overflow-x: auto; }
.publication-nav a { color: #313a43; text-decoration: none; white-space: nowrap; font-size: 15px; font-weight: 700; padding: 16px 0 13px; border-bottom: 3px solid transparent; }
.publication-nav a:hover,
.publication-nav a.active { color: var(--publication-dark); border-bottom-color: var(--publication); }

.page-shell { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 54px; padding: 54px 0 72px; }
.article-header { padding-bottom: 24px; border-bottom: 1px solid var(--line); margin-bottom: 30px; }
.section-label { margin: 0 0 8px; color: var(--publication-dark); text-transform: uppercase; letter-spacing: .1em; font-size: 12px; font-weight: 800; }
h1 { margin: 0; font-size: clamp(34px, 4.5vw, 52px); line-height: 1.1; letter-spacing: -1.2px; color: #1e2730; }
.article-meta { margin-top: 17px; color: var(--muted); font-size: 14px; }
.article-content { min-width: 0; }
.article-content p { margin: 0 0 1.15em; }
.article-content h2,
.article-content h3,
.article-content h4,
.article-content .page-header h3 {
  color: #202a33;
  line-height: 1.25;
  margin: 1.8em 0 .65em;
  font-weight: 700;
}
.article-content h2 { font-size: 29px; }
.article-content h3,
.article-content .page-header h3 { font-size: 24px; }
.article-content h4 { font-size: 20px; }
.article-content .page-header { padding: 0; margin: 0; border: 0; }
.article-content ul, .article-content ol { padding-left: 25px; margin: 0 0 1.3em; }
.article-content li { margin-bottom: .5em; }
.article-content blockquote {
  margin: 1.4em 0;
  padding: 20px 22px;
  border-left: 4px solid var(--publication);
  background: var(--soft);
  overflow-x: auto;
}
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content table { width: 100% !important; border-collapse: collapse; margin: 1.5em 0; display: block; overflow-x: auto; }
.article-content tbody { display: table; width: 100%; }
.article-content th, .article-content td { border-bottom: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.article-content tr:nth-child(even) { background: #fafafa; }
.article-content font[size="4"] { font-size: 20px; font-weight: 700; }
.article-content code, .article-content pre { font-family: Consolas, "Courier New", monospace; }
.article-content pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: #20262d;
  color: #f2f4f6;
  padding: 18px 20px;
  border-radius: 2px;
}

.sidebar { min-width: 0; }
.sidebar-box { border-top: 4px solid var(--publication); background: var(--soft); padding: 22px; margin-bottom: 28px; }
.sidebar-box h2 { margin: 0 0 14px; font-size: 18px; line-height: 1.25; }
.sidebar-box ul { list-style: none; margin: 0; padding: 0; }
.sidebar-box li { border-top: 1px solid #dfe2e5; }
.sidebar-box li:first-child { border-top: 0; }
.sidebar-box a { display: block; padding: 10px 0; text-decoration: none; font-weight: 600; }
.ad-box { min-height: 250px; border: 1px solid var(--line); background: #fff; display: flex; align-items: center; justify-content: center; overflow: hidden; }

.related { background: var(--soft); border-top: 1px solid var(--line); padding: 46px 0 54px; }
.related h2 { margin: 0 0 22px; font-size: 23px; }
.resource-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.resource-card { background: #fff; border-top: 4px solid var(--sembee-blue); padding: 22px 24px; box-shadow: 0 1px 2px rgba(0,0,0,.08); }
.resource-card h3 { margin: 0 0 8px; font-size: 20px; }
.resource-card p { margin: 0 0 12px; color: #56616b; }
.resource-card a { font-weight: 700; text-decoration: none; }

.site-footer { background: var(--footer); color: #dbe0e5; padding: 48px 0 34px; }
.site-footer-grid { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 48px; }
.footer-brand img { width: 135px; background: white; padding: 7px 9px; }
.site-footer h2 { color: #fff; font-size: 15px; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 15px; }
.site-footer p { color: #b9c1c8; font-size: 14px; margin: 12px 0 0; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 8px 0; }
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-legal { border-top: 1px solid #3a434b; margin-top: 34px; padding-top: 22px; color: #aeb6bd; font-size: 13px; }

@media (max-width: 850px) {
  .sembee-header-inner { min-height: auto; padding: 18px 0; align-items: flex-start; }
  .sembee-tagline { display: none; }
  .sembee-nav { gap: 15px; flex-wrap: wrap; justify-content: flex-end; }
  .publication-name { font-size: 29px; }
  .page-shell { grid-template-columns: 1fr; gap: 36px; padding-top: 38px; }
  .sidebar { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
  .sidebar-box { margin: 0; }
  .site-footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 580px) {
  .sembee-header-inner, .publication-inner, .publication-nav-inner, .page-shell, .related-inner, .site-footer-inner { width: min(calc(100% - 28px), var(--max)); }
  .sembee-header-inner { display: block; }
  .sembee-nav { margin-top: 15px; justify-content: flex-start; }
  .publication-inner { min-height: 70px; }
  .publication-nav-inner { gap: 22px; }
  .page-shell { padding-bottom: 54px; }
  .sidebar, .resource-grid, .site-footer-grid { grid-template-columns: 1fr; }
  h1 { font-size: 36px; }
}