:root {
  --fg: #14181f;
  --bg: #fff;
  --accent: #0b5fff;
  --muted: #4a5565;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font:
    1rem/1.6 system-ui,
    sans-serif;
  color: var(--fg);
  background: var(--bg);
}
main,
.bar,
footer {
  max-width: 60rem;
  margin: 0 auto;
  padding: 1rem;
}
.bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.bar nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.brand {
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--fg);
}
a {
  color: var(--accent);
}
a:focus-visible,
.btn:focus-visible {
  outline: 3px solid #000;
  outline-offset: 2px;
}
.skip {
  position: absolute;
  left: -999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  background: #fff;
  padding: 0.5rem;
}
.hero {
  padding: 2rem 0;
}
h1 {
  font-size: clamp(1.8rem, 6vw, 2.8rem);
  line-height: 1.15;
}
.lead {
  font-size: 1.15rem;
  color: var(--muted);
}
.btn {
  display: inline-block;
  padding: 0.8rem 1.4rem;
  margin: 0.25rem 0.5rem 0.25rem 0;
  border-radius: 0.5rem;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}
.btn.alt {
  background: #fff;
  color: var(--accent);
  border: 2px solid var(--accent);
}
.steps,
.cases {
  padding-left: 1.2rem;
}
.steps h3 {
  margin-bottom: 0.2rem;
}
dt {
  font-weight: 600;
}
dd {
  margin: 0 0 0.6rem;
  word-break: break-all;
  font-family: ui-monospace, monospace;
  font-size: 0.9rem;
}
footer {
  border-top: 1px solid #d5dae1;
  color: var(--muted);
  font-size: 0.9rem;
}
footer a {
  color: var(--muted);
}
#dl-qr svg,
#dl-qr img {
  width: 200px;
  height: 200px;
}