/* Self-hosted Barlow (OFL, via Fontsource): web-loadable DIN-style
   grotesque standing in for the proprietary Siemens face. Served locally
   so guide pages stay fully standalone. */
@font-face {
  font-family: "Barlow";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/barlow-400.woff2") format("woff2");
}
@font-face {
  font-family: "Barlow";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("fonts/barlow-700.woff2") format("woff2");
}
/* Schematic Translator technical guides (Sept 2026). Self-contained so
   the articles render standalone for crawlers, no app bundle needed. */
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Barlow", Arial, sans-serif;
  color: #1f2937;
  background: #ffffff;
  line-height: 1.7;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 24px 20px 64px; }
header.site {
  border-bottom: 1px solid #e5e7eb;
  background: #ffffff;
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px;
  font-family: "Barlow", Arial, sans-serif;
}
.brand { font-weight: 700; color: #111827; text-decoration: none; font-size: 17px; }
.brand-accent { color: #1D4ED8; }
.back-link { color: #1D4ED8; text-decoration: none; font-size: 15px; }
.breadcrumb {
  font-family: "Barlow", Arial, sans-serif;
  font-size: 14px; color: #6b7280; margin: 18px 0 6px;
}
.breadcrumb a { color: #1D4ED8; text-decoration: none; }
h1 { font-size: 34px; line-height: 1.25; margin: 8px 0 10px; color: #111827; }
h2 { font-size: 24px; margin: 34px 0 10px; color: #111827; }
h3 { font-size: 19px; margin: 24px 0 8px; color: #111827; }
p { margin: 12px 0; font-size: 18px; }
.meta {
  font-family: "Barlow", Arial, sans-serif;
  font-size: 14px; color: #6b7280; margin-bottom: 22px;
}
ul, ol { padding-left: 26px; }
li { margin: 8px 0; font-size: 18px; }
table { border-collapse: collapse; width: 100%; margin: 18px 0; font-size: 16px; }
th, td { border: 1px solid #d1d5db; padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: #f3f4f6; font-family: "Barlow", Arial, sans-serif; }
.symbol-fig { text-align: center; margin: 22px 0; }
.symbol-fig svg { background: #f9fafb; border: 1px solid #e5e7eb; padding: 8px; }
.symbol-fig figcaption {
  font-family: "Barlow", Arial, sans-serif;
  font-size: 14px; color: #4b5563; margin-top: 6px;
}
.tip {
  background: #eff6ff; border-left: 4px solid #1D4ED8;
  padding: 12px 16px; margin: 18px 0; font-size: 17px;
}
.cta {
  background: #f9fafb; border: 1px solid #e5e7eb; border-radius: 10px;
  padding: 20px 22px; margin: 36px 0 8px; font-size: 17px;
}
.cta a.btn {
  display: inline-block; background: #1a1a1a; color: #ffffff; padding: 12px 22px;
  border-radius: 8px; text-decoration: none; font-weight: 700;
  font-family: "Barlow", Arial, sans-serif;
  margin-top: 10px; font-size: 16px;
}
footer.site {
  border-top: 1px solid #e5e7eb; margin-top: 30px; padding-top: 18px;
  font-family: "Barlow", Arial, sans-serif;
  font-size: 14px; color: #6b7280;
}
footer.site a { color: #1D4ED8; text-decoration: none; }
/* Industrial banner (Sept 28, Robert): solid logo-blue strip below the
   header, same height as the header, so it adds presence without
   pushing content down. */
.banner { background: #1D4ED8; border-bottom: 2px solid #1e40af; }
.banner .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 62px; padding-top: 0; padding-bottom: 0;
}
.banner .banner-label {
  color: #ffffff; font-weight: 700; font-size: 13px;
  letter-spacing: 2.5px; text-transform: uppercase; margin: 0;
}
.banner .banner-tag {
  color: #bfdbfe; font-size: 12px; letter-spacing: 1px;
  text-transform: uppercase; margin: 0; font-weight: 600;
}
/* Industrial site footer (Sept 28, Robert): dark bar to break up the
   page, same links on every guide. */
.site-footer { background: #111827; color: #9ca3af; margin-top: 44px; }
.site-footer .wrap { padding-top: 22px; padding-bottom: 26px; font-size: 14px; line-height: 1.9; }
.site-footer p { margin: 0 0 4px; font-size: 14px; }
.site-footer a { color: #93c5fd; text-decoration: none; font-weight: 600; }
.site-footer .foot-brand { color: #ffffff; font-weight: 700; font-size: 16px; }
.site-footer .foot-brand a { color: #ffffff; }
.site-footer .foot-note { color: #6b7280; margin-top: 8px; }

/* Uniform ISA-5.1 tag tables (Sept 28, Robert): matching 3-column
   geometry so the two stacked tables line up down the page. */
.tag-table th:first-child, .tag-table td:first-child { width: 110px; }
.tag-table th:nth-child(2), .tag-table td:nth-child(2) { width: 35%; }

@media (max-width: 600px) {
  h1 { font-size: 27px; }
  p, li { font-size: 17px; }
  table { font-size: 15px; }
}