:root {
  --fg: #1a1a1a;
  --muted: #555;
  --accent: #0a5c4a;
  --bg: #fff;
  --soft: #f4f6f5;
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font:
    17px/1.6 system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    sans-serif;
  color: var(--fg);
  background: var(--bg);
}
a {
  color: var(--accent);
}
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  background: var(--bg);
  padding: 0.5rem;
}
header,
main,
footer {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1.25rem;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--fg);
  text-decoration: none;
}
nav a {
  margin-left: 1rem;
}
h1 {
  font-size: 2.2rem;
  line-height: 1.2;
  margin: 1.5rem 0 1rem;
}
h2 {
  margin-top: 2.5rem;
}
.lead {
  font-size: 1.2rem;
  color: var(--muted);
}
.features {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}
.features li {
  background: var(--soft);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}
.features strong {
  display: block;
  margin-bottom: 0.25rem;
}
table {
  border-collapse: collapse;
  width: 100%;
}
th,
td {
  text-align: left;
  border-bottom: 1px solid #ddd;
  padding: 0.5rem;
  vertical-align: top;
}
footer {
  border-top: 1px solid #ddd;
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}