:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #17202a;
  background: #f4f6f7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: #f4f6f7;
}

a { color: inherit; text-decoration: none; }

.site-header,
main,
footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #cfd6dc;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: #ffffff;
  background: #173f5f;
  font-size: 12px;
}

nav { display: flex; gap: 24px; font-size: 14px; color: #4f5d68; }
nav a:hover { color: #006d77; }

.overview {
  min-height: 500px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 72px;
  padding: 64px 0 48px;
}

.label,
.number {
  margin: 0 0 16px;
  color: #006d77;
  font: 700 12px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-transform: uppercase;
}

h1 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(44px, 6vw, 74px);
  line-height: 1.02;
  font-weight: 760;
}

.lede {
  max-width: 610px;
  margin: 28px 0 0;
  color: #52616d;
  font-size: 19px;
  line-height: 1.65;
}

.edge-map {
  position: relative;
  min-height: 310px;
  border: 1px solid #b8c4cc;
  background-color: #ffffff;
  background-image: linear-gradient(#e9edf0 1px, transparent 1px), linear-gradient(90deg, #e9edf0 1px, transparent 1px);
  background-size: 28px 28px;
  overflow: hidden;
}

.node {
  position: absolute;
  z-index: 2;
  width: 74px;
  height: 74px;
  display: grid;
  place-items: center;
  border: 2px solid #173f5f;
  background: #ffffff;
  font: 700 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.node-a { left: 34px; top: 46px; }
.node-b { left: calc(50% - 37px); top: calc(50% - 37px); background: #173f5f; color: #ffffff; }
.node-c { right: 34px; bottom: 46px; border-color: #006d77; }

.route {
  position: absolute;
  z-index: 1;
  height: 2px;
  background: #006d77;
  transform-origin: left center;
}

.route-a { left: 96px; top: 108px; width: 44%; transform: rotate(21deg); }
.route-b { left: 52%; top: 53%; width: 42%; transform: rotate(22deg); }

.status-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid #aebbc4;
  border-bottom: 1px solid #aebbc4;
}

.status-band div {
  min-height: 90px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  border-right: 1px solid #d1d9de;
  font-size: 13px;
  color: #65727c;
}

.status-band div:last-child { border-right: 0; }
.status-band strong { color: #17202a; font-size: 15px; }
.status-dot { width: 8px; height: 8px; background: #1f9d55; border-radius: 50%; }

.details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 72px 0 96px;
  background: #c7d0d6;
  border: 1px solid #c7d0d6;
}

.details article { min-height: 220px; padding: 30px; background: #ffffff; }
.details h2 { margin: 34px 0 12px; font-size: 20px; }
.details p:last-child { margin: 0; color: #5d6972; line-height: 1.6; }

footer {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid #cfd6dc;
  color: #697780;
  font-size: 13px;
}

@media (max-width: 760px) {
  .site-header { align-items: flex-start; padding: 18px 0; }
  nav { display: none; }
  .overview { grid-template-columns: 1fr; gap: 36px; min-height: 0; padding-top: 48px; }
  h1 { font-size: 46px; }
  .edge-map { min-height: 260px; }
  .status-band { grid-template-columns: 1fr 1fr; }
  .status-band div:nth-child(2) { border-right: 0; }
  .details { grid-template-columns: 1fr; margin-bottom: 64px; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: 6px; }
}