:root {
  --ink: #172c2a;
  --muted: #536361;
  --paper: #f8f7f2;
  --line: #d9dfd8;
  --accent: #205b48;
  --warm: #aa4d2b;
  --white: #fff;
  --mono: ui-monospace, SFMono-Regular, Consolas, monospace;
}
* {
  box-sizing: border-box;
}
html {
  scroll-padding-top: 24px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font:
    17px/1.65 system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}
a {
  color: var(--accent);
  text-underline-offset: 4px;
}
a:hover {
  color: var(--warm);
}
a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--warm);
  outline-offset: 5px;
}
.wrap {
  max-width: 1160px;
  margin: auto;
  padding: 0 30px;
}
.skip {
  position: absolute;
  top: -80px;
  background: white;
  padding: 10px;
}
.skip:focus {
  top: 10px;
  z-index: 2;
}
header {
  border-bottom: 1px solid var(--line);
}
nav {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  font-size: 20px;
  font-weight: 750;
  text-decoration: none;
  letter-spacing: -0.5px;
}
.brand span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-right: 9px;
  background: var(--accent);
  color: white;
  font: 700 15px var(--mono);
  border-radius: 8px;
}
.nav-links {
  display: flex;
  gap: 26px;
  font-size: 14px;
}
.nav-links a {
  color: var(--ink);
  text-decoration: none;
}
.hero {
  padding: 80px 0 54px;
  max-width: 880px;
}
.eyebrow {
  font: 600 12px var(--mono);
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--warm);
  margin: 0 0 22px;
}
h1 {
  font-size: clamp(40px, 6.5vw, 76px);
  line-height: 1.04;
  letter-spacing: -3px;
  font-weight: 650;
  margin: 0 0 26px;
}
h1 em {
  font-style: normal;
  color: var(--accent);
}
.lead {
  max-width: 690px;
  font-size: 21px;
  line-height: 1.6;
  color: var(--muted);
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 30px 0 18px;
}
.button {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 11px 21px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  font-size: 15px;
  text-decoration: none;
  font-weight: 600;
}
.button:hover {
  background: #153f32;
  color: white;
}
.button.secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.meta {
  font: 12px/1.7 var(--mono);
  color: var(--muted);
}
.command {
  background: #182d29;
  color: #f6f8ee;
  padding: 24px;
  border-radius: 8px;
  overflow: auto;
  font: 14px/1.8 var(--mono);
  margin: 22px 0;
}
.command .comment {
  color: #a2c0b1;
}
.command code {
  background: none;
  padding: 0;
  color: inherit;
  font: inherit;
}
section {
  padding: 54px 0;
  border-top: 1px solid var(--line);
}
h2 {
  font-size: 32px;
  font-weight: 650;
  letter-spacing: -1px;
  line-height: 1.25;
  margin: 0 0 18px;
}
h3 {
  font-size: 19px;
  letter-spacing: -0.3px;
  margin: 0 0 12px;
}
.section-intro {
  max-width: 700px;
  color: var(--muted);
  margin-bottom: 28px;
}
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 30px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat {
  padding: 22px 20px 22px 0;
}
.stat strong {
  display: block;
  font-size: 38px;
  font-weight: 600;
  letter-spacing: -1px;
}
.stat span {
  font-size: 13px;
  color: var(--muted);
}
.comparison {
  display: grid;
  grid-template-columns: 1fr 1.55fr;
  gap: 20px;
}
.diagram {
  margin: 0;
  padding: 18px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.diagram img {
  display: block;
  width: 100%;
  height: 340px;
  object-fit: contain;
}
.diagram figcaption {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 16px;
  font-size: 13px;
}
.diagram small {
  color: var(--muted);
}
.note {
  font-size: 13px;
  color: var(--muted);
  max-width: 900px;
}
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.feature-number {
  font: 13px var(--mono);
  color: var(--warm);
  margin-bottom: 14px;
}
.features p {
  font-size: 15px;
  color: var(--muted);
  margin: 0;
}
.table-wrap {
  overflow: auto;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
}
th,
td {
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  padding: 16px 18px 16px 0;
}
th {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
td:first-child {
  min-width: 140px;
  font-weight: 600;
}
tr.ours {
  background: #edf3ec;
}
tr.ours td:first-child {
  padding-left: 12px;
}
code {
  font: 0.88em var(--mono);
  background: #e9ece5;
  padding: 2px 5px;
  border-radius: 3px;
}
.guides {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.guide-card {
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  color: var(--ink);
  background: white;
}
.guide-card p {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 0;
}
details {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
summary {
  cursor: pointer;
  font-weight: 600;
}
details p {
  max-width: 820px;
  color: var(--muted);
  font-size: 15px;
}
footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  font-size: 13px;
  color: var(--muted);
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.article {
  max-width: 820px;
  padding-top: 60px;
  padding-bottom: 65px;
}
.article h1 {
  font-size: 46px;
  letter-spacing: -1.8px;
  line-height: 1.15;
}
.article h2 {
  font-size: 26px;
  margin-top: 40px;
}
.article p,
.article li {
  color: var(--muted);
}
.article pre {
  white-space: pre;
  overflow: auto;
}
.article .back {
  font-size: 14px;
}
.article ul,
.article ol {
  padding-left: 22px;
}
.article li {
  margin-bottom: 10px;
}
@media (max-width: 720px) {
  .wrap {
    padding: 0 20px;
  }
  nav {
    min-height: 76px;
    gap: 12px;
    flex-wrap: wrap;
    padding: 16px 0;
  }
  .nav-links {
    gap: 15px;
    font-size: 13px;
  }
  .brand {
    font-size: 17px;
    flex-basis: 100%;
  }
  .brand span {
    display: none;
  }
  .hero {
    padding: 50px 0 34px;
  }
  h1 {
    letter-spacing: -1.8px;
  }
  .lead {
    font-size: 18px;
  }
  .features,
  .guides,
  .comparison {
    grid-template-columns: 1fr;
  }
  .stats {
    gap: 10px;
  }
  .stat {
    padding: 18px 0;
  }
  .stat strong {
    font-size: 29px;
  }
  .stat span {
    font-size: 12px;
  }
  .diagram img {
    height: 300px;
  }
  section {
    padding: 40px 0;
  }
  .article h1 {
    font-size: 36px;
  }
  .command {
    font-size: 12px;
    padding: 18px;
  }
  th,
  td {
    padding-right: 12px;
  }
}