:root {
  color-scheme: light;
  --bg: #ffffff;
  --panel: #f6f8fa;
  --text: #1f2328;
  --muted: #59636e;
  --line: #d1d9e0;
  --accent: #0969da;
  --ok: #1a7f37;
  --warn: #9a6700;
  --on-primary: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0d1117;
    --panel: #151b23;
    --text: #f0f6fc;
    --muted: #9198a1;
    --line: #3d444d;
    --accent: #4493f8;
    --ok: #3fb950;
    --warn: #d29922;
    --on-primary: #0d1117;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 24px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  overflow-wrap: anywhere;
}
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 3px; }
.wrap { width: min(100% - 32px, 1200px); margin-inline: auto; }
.skip-link {
  position: absolute;
  z-index: 1;
  top: 8px;
  left: 16px;
  padding: 8px 12px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--bg);
  transform: translateY(-200%);
}
.skip-link:focus { transform: translateY(0); }
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 22px;
  border-bottom: 1px solid var(--line);
  font-size: .875rem;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; text-decoration: none; }
.brand-icon { color: var(--accent); flex: none; }
nav { display: flex; flex-wrap: wrap; gap: 4px 22px; max-width: 100%; }
nav a { padding-block: 8px; color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); text-decoration: underline; }
.hero { padding-block: 76px 64px; }
.eyebrow { margin: 0 0 20px; font-size: .8125rem; font-weight: 600; color: var(--muted); }
.eyebrow span { padding-inline: 8px; color: var(--line); }
h1, h2, h3 { font-weight: 600; line-height: 1.25; }
h1 { margin: 0 0 20px; font-size: clamp(2.75rem, 8vw, 4rem); letter-spacing: -.045em; }
h2 { margin: 0 0 16px; font-size: 1.625rem; letter-spacing: -.025em; }
h3 { margin: 26px 0 8px; font-size: 1.0625rem; }
p { margin: 0 0 16px; }
.lead { max-width: 650px; color: var(--muted); font-size: clamp(1.125rem, 3vw, 1.375rem); line-height: 1.55; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  min-height: 44px;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  font-size: .9375rem;
  font-weight: 600;
  text-decoration: none;
}
.button:hover { border-color: var(--accent); text-decoration: underline; }
.primary { border-color: var(--ok); background: var(--ok); color: var(--on-primary); }
.hero-note { margin: 16px 0 0; font-size: .8125rem; color: var(--muted); }
.latest { margin: 16px 0 0; font-size: .875rem; color: var(--muted); }
.latest + .hero-note { margin-top: 8px; }
.section { padding-block: 40px; border-top: 1px solid var(--line); }
.section > :last-child { margin-bottom: 0; }
.section-intro { color: var(--muted); }
.feature { display: flex; gap: 22px; margin-top: 24px; }
.feature-number { padding-top: 2px; color: var(--muted); font: .8125rem/1.65 ui-monospace, SFMono-Regular, Consolas, monospace; }
.feature h3 { margin-top: 0; }
.feature p { margin-bottom: 0; }
table { width: 100%; table-layout: fixed; border-collapse: collapse; margin-block: 24px 12px; font-size: .875rem; line-height: 1.5; }
caption { margin-bottom: 12px; color: var(--muted); text-align: left; font-size: .8125rem; }
th, td { padding: 12px; border-bottom: 1px solid var(--line); text-align: right; vertical-align: top; font-variant-numeric: tabular-nums; }
thead th { background: var(--panel); color: var(--muted); font-size: .8125rem; font-weight: 600; }
th:first-child { width: 52%; text-align: left; }
tbody th { font-weight: 500; }
td strong { color: var(--ok); font-weight: 600; }
.unit, .range { display: block; font-size: .75rem; color: var(--muted); font-weight: 400; }
.small { color: var(--muted); font-size: .8125rem; }
details { margin-top: 22px; }
summary { width: fit-content; padding: 8px 0; color: var(--accent); cursor: pointer; font-size: .875rem; }
details table { margin-top: 12px; }
.measurement-note { margin-top: 24px; padding-left: 18px; border-left: 2px solid var(--line); color: var(--muted); font-size: .8125rem; }
.measurement-note h3 { margin: 0 0 8px; font-size: .875rem; color: var(--text); }
.measurement-note p { margin: 0; }
.steps { margin: 24px 0; padding-left: 24px; }
.steps li { padding-left: 6px; margin-bottom: 16px; }
.steps li::marker { color: var(--muted); font-weight: 600; }
code, pre, kbd { font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace; font-size: .875em; }
code, kbd { padding: 2px 5px; border-radius: 4px; background: var(--panel); }
kbd { border: 1px solid var(--line); box-shadow: 0 1px 0 var(--line); white-space: nowrap; }
pre { margin: 12px 0; padding: 12px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); white-space: pre-wrap; overflow-wrap: anywhere; }
pre code { padding: 0; background: none; font-size: 1em; }
.note { margin-block: 24px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); font-size: .875rem; }
.note h3 { margin-top: 0; }
.note > :last-child { margin-bottom: 0; }
.site-footer { padding-block: 28px 40px; border-top: 1px solid var(--line); font-size: .8125rem; color: var(--muted); }
.site-footer p { margin-bottom: 8px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 22px; padding-top: 10px; }
.error-page { min-height: 100svh; display: flex; flex-direction: column; }
.error-page main { flex: 1; padding-block: 80px; }
.error-page h1 { font-size: clamp(2rem, 7vw, 3rem); }

.section-intro, .section > p, .measurement-note p { max-width: 75ch; }
.cards { display: grid; gap: 16px; margin-block: 24px; }
.card { padding: 18px 20px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); font-size: .9375rem; }
.card h3 { margin-top: 0; }
.card > :last-child { margin-bottom: 0; }
.compact-list { margin: 0; padding-left: 22px; max-width: 75ch; }
.compact-list li + li { margin-top: 8px; }
.sync-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 16px; margin: 24px 0; padding: 0; list-style: none; }
.sync-grid li { min-width: 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); font-size: .9375rem; }
.sync-grid strong { display: block; margin-bottom: 6px; }
.sync-grid span { color: var(--muted); }
#questions details { margin: 0; border-bottom: 1px solid var(--line); }
#questions summary { width: 100%; padding-block: 16px; font-size: .9375rem; }
#questions details > p { max-width: 75ch; }
.feature > div, .card { min-width: 0; }
@media (min-width: 900px) {
  #what { display: grid; grid-template-columns: 1fr 1fr; column-gap: 48px; }
  #what > h2 { grid-column: 1 / -1; }
  .steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; padding-left: 0; list-style: none; counter-reset: step; }
  .steps li { margin: 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: 6px; counter-increment: step; }
  .steps li::before { content: counter(step); display: block; margin-bottom: 8px; color: var(--muted); font: .8125rem/1 ui-monospace, SFMono-Regular, Consolas, monospace; }
  .cards { grid-template-columns: repeat(3, 1fr); }
  #measured table { font-size: .9375rem; }
}

@media (max-width: 540px) {
  .site-header { padding-block: 16px; gap: 10px 24px; }
  nav { width: 100%; gap: 4px 24px; }
  .hero { padding-block: 48px 44px; }
  .section { padding-block: 32px; }
  .feature { gap: 14px; }
  th, td { padding: 10px 6px; }
  th:first-child { width: 48%; }
  .note { padding: 16px; }
}