:root {
  color-scheme: dark;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  background: #101217;
  color: #e6e9e4;
  line-height: 1.7;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
a {
  color: #c4dfa0;
  text-underline-offset: 0.22em;
}
a:hover {
  color: #e3f6cb;
}
a:focus-visible {
  outline: 2px solid #c4dfa0;
  outline-offset: 5px;
  border-radius: 2px;
}
.site-header,
main,
footer {
  width: min(880px, calc(100% - 48px));
  margin-inline: auto;
}
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding-block: 28px;
  border-bottom: 1px solid #30373c;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 750;
  font-size: 16px;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: #e6e9e4;
}
.button {
  display: inline-flex;
  gap: 18px;
  align-items: center;
  padding: 10px 18px;
  background: #c4dfa0;
  border: 1px solid #c4dfa0;
  border-radius: 6px;
  color: #152014;
  text-decoration: none;
  font-weight: 650;
  font-size: 14px;
}
.button:hover {
  background: #d7ecbd;
  color: #152014;
}
main {
  padding-block: 62px;
}
.eyebrow {
  color: #a9c881;
  font:
    11px/1.7 ui-monospace,
    monospace;
  letter-spacing: 0.16em;
}
h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.16;
  letter-spacing: -0.04em;
  font-weight: 650;
  margin: 20px 0 25px;
}
h2 {
  font-size: 27px;
  letter-spacing: -0.025em;
  line-height: 1.3;
  margin: 0 0 20px;
}
h3 {
  font-size: 17px;
  margin: 28px 0 6px;
}
p,
dd,
li {
  color: #aeb8be;
}
p {
  margin: 0 0 18px;
}
strong {
  color: #dfe6db;
  font-weight: 600;
}
.intro {
  max-width: 740px;
  font-size: 19px;
}
.contents {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  font-size: 13px;
  margin-block: 30px 8px;
}
section {
  border-top: 1px solid #30373c;
  padding-top: 36px;
  margin-top: 44px;
  scroll-margin-top: 24px;
}
.modes {
  margin: 22px 0 0;
}
.modes > div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid #252c32;
}
dt {
  color: #c4dfa0;
  font-weight: 600;
}
dd {
  margin: 0;
}
ol {
  padding-left: 24px;
}
li {
  padding-left: 6px;
  margin-bottom: 18px;
}
.closing {
  margin-top: 50px;
  border: 1px solid #3d4938;
  border-radius: 10px;
  padding: 32px;
  background: #171e18;
}
.closing h2 {
  margin-bottom: 10px;
}
footer {
  border-top: 1px solid #30373c;
  padding-block: 24px 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  color: #8f9ba2;
  font-size: 12px;
}
@media (max-width: 560px) {
  .site-header,
  main,
  footer {
    width: calc(100% - 32px);
  }
  .site-header {
    gap: 12px;
    padding-block: 20px;
  }
  .brand {
    font-size: 12px;
    gap: 8px;
  }
  .button {
    gap: 10px;
    padding: 9px 12px;
    font-size: 12px;
  }
  main {
    padding-block: 38px;
  }
  .intro {
    font-size: 17px;
  }
  .modes > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .closing {
    padding: 24px;
  }
}