:root {
  color-scheme: light;
  --ink: #14272a;
  --muted: #52686b;
  --water: #087f8c;
  --water-deep: #045963;
  --foam: #eef8f7;
  --white: #ffffff;
  --line: #c9dfdd;
  --safe: #177a4f;
  --warning: #bd5b18;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--foam);
  font-size: 17px;
  line-height: 1.6;
}

a { color: var(--water-deep); }
a:hover { color: var(--water); }

.shell {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 750;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 8px;
}

nav { display: flex; gap: 18px; }
nav a { font-size: 15px; font-weight: 650; text-decoration: none; }

main { padding: 56px 0 72px; }

.eyebrow {
  color: var(--water-deep);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1, h2 { letter-spacing: 0; line-height: 1.15; }
h1 { margin: 8px 0 14px; font-size: clamp(36px, 7vw, 54px); }
h2 { margin: 34px 0 8px; font-size: 23px; }
p { margin: 0 0 16px; }
.lede { max-width: 650px; color: var(--muted); font-size: 20px; }
.updated { margin-top: 18px; color: var(--muted); font-size: 14px; }

.measure {
  height: 14px;
  margin: 34px 0 26px;
  border-top: 2px solid var(--water);
  border-bottom: 1px solid var(--line);
  position: relative;
}

.measure::before,
.measure::after {
  content: "";
  position: absolute;
  top: -2px;
  width: 2px;
  height: 13px;
  background: var(--water);
}

.measure::before { left: 18%; }
.measure::after { right: 18%; }

.panel {
  margin-top: 28px;
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.panel h2:first-child { margin-top: 0; }
.note { border-left: 4px solid var(--safe); }
.warning { border-left: 4px solid var(--warning); }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--water-deep);
  color: var(--white);
  font-weight: 750;
  text-decoration: none;
}

.button:hover { background: var(--water); color: var(--white); }
.button.secondary { background: var(--white); color: var(--water-deep); border: 1px solid var(--line); }

ul { padding-left: 22px; }
li { margin: 8px 0; }

footer {
  padding: 24px 0 36px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

@media (max-width: 560px) {
  .nav { align-items: flex-start; padding: 14px 0; }
  nav { flex-direction: column; gap: 4px; text-align: right; }
  main { padding-top: 38px; }
  .lede { font-size: 18px; }
}