body {
  min-height: 100vh;
}

.layout {
  display: flex;
  flex-direction: column;
  min-height: 95vh;
  align-items: center;
  justify-content: center;
}
@media (max-width: 840px) {
  .layout {
    min-height: 100vh;
  }
}

main {
  --max-content-width: 38em;
  --line-color: color(from var(--c0) srgb r g b / 0.1);

  display: flex;
  width: 100%;
  align-items: flex-start;
  justify-content: center;
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
@media (max-width: 840px) {
  main {
    --max-content-width: 100%;

    min-height: 100vh;
    flex-direction: column;
    margin: 0;
  }
}

h1 {
  max-width: 16rem;
  font-size: 2.5em;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-weight: 900;
  color: color(from var(--c1) srgb r g b / 0.75);
  margin: 1rem 0;
}
@media (max-width: 840px) {
  h1 {
    max-width: none;
    font-size: 2.25em;
  }
}
h1 a,
h1 a:link,
h1 a:hover,
h1 a:visited,
h1 a:active {
  border-bottom: none;
}
header {
  display: block;
  text-align: center;
  padding: 0 var(--content-padding-x);
}
.description {
  font-size: 1.15em;
  margin: 0;
}
.description p {
  margin: 0;
}
.description p + p {
  margin-top: 0.75em;
}
.actions {
  --r: 1em;

  font-size: 1.25em;
  margin: 1.25rem 0;
}
.actions a.primary {
  font-weight: bold;
}
.actions a.button {
  min-width: 6.5em;
}
.actions .sep {
  display: block;
  height: 0.01em;
  font-size: 0;
  overflow: hidden;
  margin: 0.35rem 0;
}
.ref {
  font-size: 0.9em;
}
@media (max-width: 840px) {
  .actions {
    font-size: 1.25em;
  }
  .actions .sep {
    margin: 0.5rem 0;
  }
}

section {
  width: 50%;
  min-height: 100vh;
  align-self: stretch;
  padding: 0;
  box-sizing: border-box;
}
section .section-content {
  max-width: var(--max-content-width);
  padding: 1em 3.5vw 2em;
  box-sizing: border-box;
}
section.intro-title {
  display: flex;
  width: 40%;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  line-height: 1.3;
}
section.intro-title .section-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  max-width: 24em;
  min-height: 95vh;
}
section.intro-title:last-of-type {
  width: 100%;
  min-height: 100vh;
  justify-content: center;
  align-items: center;
  text-align: center;
}
section.intro-title:last-of-type .section-content {
  max-width: 36em;
  align-items: center;
}
section.intro {
  display: flex;
  width: 60%;
  flex-direction: column;
  justify-content: center;
}
section.intro .section-content {
  width: 100%;
}
@media (max-width: 840px) {
  section {
    width: auto;
    max-width: 100%;
    min-height: auto;
  }
  section .section-content {
    max-width: 100%;
    padding: 1rem var(--content-padding-x);
  }
  section.intro-title {
    flex: auto;
    width: auto;
    align-items: center;
    justify-content: center;
    text-align: center;
  }
  section.intro-title .section-content {
    min-height: 50vh;
    align-items: center;
    padding-top: 1rem;
    padding-bottom: 1.5rem;
  }
  section.intro-title:last-child .section-content {
    max-width: 100%;
    padding-bottom: 2.5rem;
  }
  section.intro {
    width: auto;
    flex: none;
    justify-content: flex-start;
    align-items: center;
  }
  section.intro .section-content {
    padding-top: 0.5rem;
  }
}
.features {
  --ca: color(from var(--c0) srgb r g b / 0.55);
  --link-decoration: underline;
  --list-padding-x: 1.25rem;
  --list-item-padding-x: 0.35rem;

  margin: 1em 0;
}
.features h2 {
  font-size: 1.25em;
  font-style: italic;
  border: none;
  padding: 0.1em calc(var(--list-padding-x) + var(--list-item-padding-x));
  margin: 0.75em 0 0.5em;
}
.features > ul {
  list-style: circle;
  padding: 0;
  padding-inline-start: var(--list-padding-x);
  margin: 0.5em 0 0;
}
.features > ul > li {
  padding: 0.25em var(--list-item-padding-x);
  margin: 0;
  box-sizing: border-box;
}
.features > ul > li + li {
  border-top: 0.075em solid var(--line-color);
}
@media (max-width: 840px) {
  .features h2 {
    text-align: center;
  }
  .features > ul > li {
    width: 100%;
  }
}
.features > ul > li > ul {
  list-style: disc;
}
.note {
  margin: 1em 0;
}
@media (max-width: 840px) {
  .note {
    padding: 0;
  }
}
p.installation {
  margin: 0;
}
.installation code {
  background: transparent;
}

.li {
  display: inline-block;
  margin: 0.25em 0;
}