:root {
  --text: #1f2328;
  --muted: #59636e;
  --line: #d4d4d4;
  --accent: #0b57d0;
  --background: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0 auto;
  max-width: 44rem;
  padding: 2rem 1.25rem 4rem;
  color: var(--text);
  background-color: var(--background);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  overflow-wrap: break-word;
}

a {
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.masthead {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.masthead img {
  width: 72px;
  height: 72px;
}

h1 {
  margin: 0;
  font-size: 1.6rem;
  line-height: 1.25;
}

h2 {
  margin: 2.5rem 0 0.75rem;
  font-size: 1.15rem;
}

.tagline {
  margin: 0.15rem 0 0;
  color: var(--muted);
}

.lede {
  margin-top: 2rem;
  font-size: 1.1rem;
}

.button {
  display: inline-block;
  padding: 0.55em 1.2em;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background-color: var(--accent);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.button:hover {
  background-color: #0842a0;
  border-color: #0842a0;
}

.link {
  margin-left: 1rem;
}

figure {
  margin: 2rem 0;
}

figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
}

figcaption {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

ul,
ol {
  margin: 0;
  padding-left: 1.4rem;
}

li + li {
  margin-top: 0.5rem;
}

code {
  padding: 0.1em 0.3em;
  border: 1px solid var(--line);
  border-radius: 3px;
  font: 0.92em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.4rem 1.25rem;
  margin: 0;
}

dt {
  font-weight: 600;
}

dd {
  margin: 0;
}

footer {
  margin-top: 3.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

footer p {
  margin: 0 0 0.5rem;
}

@media (max-width: 30rem) {
  .masthead {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }

  dl {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  dd {
    margin-bottom: 0.6rem;
  }
}