:root {
  --brand: #0077cc;
  --brand-dark: #075f9e;
  --text: #171717;
  --muted: #626262;
  --line: #d8d8d8;
  --soft: #f4f4f4;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.62;
}
a { color: var(--brand-dark); text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid rgba(0, 119, 204, 0.28); outline-offset: 3px; }

.site-header { background: #fff; border-bottom: 1px solid var(--line); }
.site-header-inner, main, .site-footer {
  width: min(100%, 920px);
  margin: 0 auto;
  padding-left: 22px;
  padding-right: 22px;
}
.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  font-weight: 700;
  text-decoration: none;
}
.brand img { width: 44px; height: 44px; object-fit: contain; }
.back-link { white-space: nowrap; }

main { padding-top: 34px; padding-bottom: 42px; }
h1 { margin: 0 0 10px; font-size: clamp(30px, 5vw, 40px); line-height: 1.1; }
h2 { margin: 32px 0 8px; font-size: 22px; line-height: 1.3; }
h3 { margin: 0 0 4px; font-size: 17px; line-height: 1.35; }
p, li { font-size: 16px; }
.lead { max-width: 72ch; margin: 0; color: #333; font-size: 18px; }
.updated { margin: 0 0 24px; color: var(--muted); }

.summary-card,
.callout {
  margin: 24px 0;
  padding: 8px 0 8px 14px;
  border-left: 3px solid #b8b8b8;
  background: transparent;
}
.summary-card p, .callout p { margin: 0; }
.compact-card { padding-bottom: 8px; }
.compact-card h2 { margin-top: 0; }

.mode-grid,
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 26px;
  row-gap: 0;
  margin: 12px 0 0;
}
.info-card {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.info-card p { margin: 0; color: #3d3d3d; }

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  margin-top: 14px;
  padding: 8px 13px;
  border: 1px solid var(--brand-dark);
  border-radius: 5px;
  background: var(--brand-dark);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}
.button-link:hover { background: #064c7e; }
.plain-list { padding-left: 22px; }
.plain-list li { margin: 6px 0; }

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 14px;
  padding-top: 19px;
  padding-bottom: 30px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  .site-header-inner, main, .site-footer { padding-left: 18px; padding-right: 18px; }
  .site-header-inner { align-items: flex-start; }
  .back-link { margin-top: 9px; font-size: 14px; }
  main { padding-top: 28px; }
  .mode-grid, .contact-grid { grid-template-columns: 1fr; }
}

main > h2 { margin-top: 36px; }