:root {
  color-scheme: light;
  --ink: #172334;
  --muted: #536274;
  --line: #d9e0e8;
  --surface: #ffffff;
  --page: #f4f7fb;
  --brand: #175cbd;
  --brand-dark: #124995;
  --soft-blue: #eaf2ff;
  --content-width: 900px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1.0625rem;
  line-height: 1.7;
}

a {
  color: var(--brand-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
a:hover { text-decoration-thickness: 2px; }
a:focus-visible {
  outline: 3px solid #8a4b00;
  outline-offset: 3px;
  border-radius: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 10;
  padding: 0.7rem 1rem;
  color: #fff;
  background: var(--brand-dark);
  border-radius: 0.4rem;
}
.skip-link:focus { top: 1rem; }

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  width: min(calc(100% - 2rem), var(--content-width));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 750;
  text-decoration: none;
  letter-spacing: -0.02em;
}
.brand-mark {
  width: 2.15rem;
  height: 2.15rem;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--brand);
  border-radius: 0.55rem;
  font-weight: 800;
}
.brand-light { color: var(--muted); font-weight: 550; }
.site-nav { display: flex; flex-wrap: wrap; gap: 1.1rem; }
.site-nav a { font-weight: 650; text-decoration: none; }

.main-content {
  width: min(calc(100% - 2rem), var(--content-width));
  margin: 2.25rem auto;
}
.content-card {
  padding: clamp(1.25rem, 4vw, 2.75rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: 0 10px 32px rgb(23 35 52 / 5%);
}
.content-card h1,
.content-card h2,
.content-card h3 {
  line-height: 1.2;
  letter-spacing: -0.025em;
}
.content-card h1 { margin-top: 0.2rem; font-size: clamp(2rem, 5vw, 2.7rem); }
.content-card h2 { margin-top: 2rem; font-size: 1.45rem; }
.content-card h3 { font-size: 1.15rem; }
.content-card p, .content-card li { max-width: 75ch; }
.content-card table { width: 100%; border-collapse: collapse; margin: 1.25rem 0; }
.content-card th, .content-card td {
  padding: 0.75rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.content-card th { background: #f1f5fa; }
.content-card blockquote {
  margin: 1.25rem 0;
  padding: 0.8rem 1rem;
  background: var(--soft-blue);
  border-left: 4px solid var(--brand);
}
.content-card code { padding: 0.12rem 0.3rem; background: #eef2f6; border-radius: 0.25rem; }
.content-card pre { overflow-x: auto; padding: 1rem; background: #eef2f6; border-radius: 0.5rem; }
.content-card pre code { padding: 0; background: transparent; }
.workflow-diagram-scroll {
  max-width: 100%;
  margin: 1.25rem 0 0.5rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  overscroll-behavior-inline: contain;
}
.workflow-diagram-scroll:focus-visible {
  outline: 3px solid #8a4b00;
  outline-offset: 3px;
}
.product-workflow-diagram {
  display: block;
  width: 100%;
  min-width: 720px;
  height: auto;
}

.product-guide-icon {
  display: block;
  width: 5.5rem;
  height: 5.5rem;
  margin: 0.5rem 0 1.25rem;
  object-fit: contain;
}

.guide-status {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.3rem 0.65rem;
  color: #3c4c5e;
  background: #eef2f6;
  border-radius: 999px;
  font-size: 0.9rem;
}
.site-footer {
  width: min(calc(100% - 2rem), var(--content-width));
  margin: 0 auto 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer p { margin: 0.35rem 0; }

@media (max-width: 600px) {
  .header-inner { min-height: auto; padding: 1rem 0; align-items: flex-start; flex-direction: column; gap: 0.7rem; }
  .site-nav { gap: 1rem; }
  .main-content { margin: 1rem auto; }
  .content-card { border-radius: 0.7rem; }
  .content-card table { display: block; overflow-x: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}