:root {
  color-scheme: dark;
  --bg: #080d10;
  --ink: #f3f4f2;
  --muted: #adb8bd;
  --mint: #68cfaa;
  --accent: #93b5c6;
  --line: rgba(173, 184, 189, .2);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  background: var(--bg);
  color: var(--ink);
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--ink); text-underline-offset: .25em; text-decoration-thickness: 1px; }
a:hover { color: var(--mint); }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--mint); outline-offset: 6px; }
::selection { background: #285a49; color: var(--ink); }
.site-header, main, footer { width: min(1120px, calc(100% - 64px)); margin-inline: auto; }
.site-header { min-height: 94px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.wordmark { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-size: 1.4rem; font-weight: 650; letter-spacing: -.055em; text-decoration: none; white-space: nowrap; }
.wordmark img { display: block; width: 32px; height: 32px; border-radius: 9px; }
.wordmark .brand-text { color: var(--ink); }
.header-meta { display: flex; align-items: center; gap: 26px; font-size: .8rem; }
.header-meta a { color: var(--muted); text-decoration: none; padding-block: 12px; }
.draft { border: 1px solid var(--line); border-radius: 999px; padding: 7px 15px; color: var(--muted); white-space: nowrap; font-size: .75rem; }
.hero { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(260px, .85fr); gap: clamp(40px, 6vw, 90px); align-items: start; padding: 74px 0 64px; }
.eyebrow { display: flex; align-items: center; gap: 14px; margin: 0 0 28px; color: var(--muted); font-size: .67rem; font-weight: 650; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 25px; height: 1px; background: var(--muted); }
h1 { font-size: clamp(3.2rem, 6.2vw, 5.4rem); line-height: 1.06; font-weight: 450; letter-spacing: -.06em; margin: 0 0 28px; }
h1 span { color: var(--mint); }
.intro { color: var(--ink); font-size: 1.18rem; letter-spacing: -.02em; margin: 0 0 15px; }
p, li { color: var(--muted); }
p { margin: 0 0 20px; }
strong { color: var(--ink); font-weight: 600; }
.hero-copy > p:not(.eyebrow) { max-width: 580px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 26px; min-height: 46px; padding: 9px 21px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-size: .84rem; }
.button-primary { border-color: var(--mint); color: var(--bg); background: var(--mint); font-weight: 650; }
.button-primary:hover { color: var(--bg); background: #89ddbe; }
.before { margin-top: 5px; padding: 27px 28px 12px; background: #0e171b; border: 1px solid var(--line); border-radius: 18px; }
.before .eyebrow { color: var(--mint); font-size: .63rem; margin-bottom: 21px; }
.before .eyebrow::before { background: var(--mint); }
.before h2 { margin: 0 0 16px; font-size: 1.45rem; font-weight: 500; letter-spacing: -.035em; }
.before p { font-size: .9rem; }
.before .parked { border-top: 1px solid var(--line); padding-top: 17px; color: var(--ink); }
.guide-layout { display: grid; grid-template-columns: 205px minmax(0, 1fr); gap: 64px; border-top: 1px solid var(--line); }
.jump { padding-top: 39px; font-size: .82rem; }
.jump p { font-size: .65rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 17px; }
.jump a { display: flex; align-items: baseline; gap: 15px; min-height: 45px; padding: 10px 0; text-decoration: none; color: var(--muted); }
.jump a:hover { color: var(--mint); }
.jump a span { color: var(--accent); font-size: .7rem; font-variant-numeric: tabular-nums; }
.guide-content { min-width: 0; }
.step, .troubleshooting { padding: 37px 0 32px; border-bottom: 1px solid var(--line); scroll-margin-top: 24px; }
.step h2, .troubleshooting h2 { display: flex; align-items: baseline; gap: 17px; margin: 0 0 24px; font-size: clamp(1.55rem, 2.7vw, 2rem); line-height: 1.25; font-weight: 450; letter-spacing: -.04em; }
.step h2 > span { color: var(--mint); font-size: .73rem; font-weight: 600; letter-spacing: .04em; }
.step > p:last-child { margin-bottom: 0; }
.setting-path { padding: 15px 19px; border-left: 2px solid var(--mint); background: #101c20; color: var(--ink); border-radius: 0 8px 8px 0; font-size: .92rem; }
ol { padding-left: 24px; margin: 24px 0; }
li { padding-left: 10px; margin: 18px 0; }
li::marker { color: var(--mint); font-weight: 600; }
.note { font-size: .875rem; line-height: 1.75; }
.guide-content { padding-bottom: 45px; }
details { border-top: 1px solid var(--line); }
summary { position: relative; display: block; list-style: none; padding: 20px 30px 20px 0; cursor: pointer; color: var(--ink); font-size: .96rem; font-weight: 500; line-height: 1.55; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 2px; top: 17px; color: var(--mint); font-size: 1.3rem; font-weight: 400; }
details[open] summary::after { content: "−"; }
details p { margin: 0 28px 24px 0; font-size: .93rem; }
footer { border-top: 1px solid var(--line); padding: 32px 0 40px; }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: .78rem; }
.footer-links a { color: var(--muted); text-decoration: none; padding-block: 8px; }
footer > p { max-width: 800px; font-size: .76rem; line-height: 1.8; margin-bottom: 10px; }
.skip { position: absolute; top: -100px; left: 16px; z-index: 5; background: var(--ink); color: var(--bg); padding: 12px 18px; border-radius: 6px; }
.skip:focus { top: 12px; }
@media (max-width: 880px) {
  .hero { gap: 34px; grid-template-columns: 1fr; padding-top: 50px; }
  .before { max-width: none; padding-bottom: 7px; }
  .guide-layout { grid-template-columns: 1fr; gap: 0; }
  .jump { display: flex; flex-wrap: wrap; gap: 0 24px; padding: 20px 0; border-bottom: 1px solid var(--line); }
  .jump p { flex-basis: 100%; margin: 0 0 3px; }
  .jump a { gap: 9px; }
}
@media (max-width: 540px) {
  .site-header, main, footer { width: calc(100% - 40px); }
  .site-header { min-height: 82px; gap: 12px; }
  .wordmark { font-size: 1.25rem; gap: 8px; }
  .wordmark img { width: 28px; height: 28px; }
  .header-meta > a { display: none; }
  .draft { padding: 6px 10px; font-size: .66rem; }
  .hero { padding: 39px 0 35px; }
  h1 { font-size: clamp(2.8rem, 12.4vw, 4rem); }
  .intro { font-size: 1.08rem; }
  .hero-copy > p { font-size: .95rem; }
  .hero-copy > .eyebrow { font-size: .65rem; }
  .before { padding: 23px 22px 7px; }
  .jump { column-gap: 22px; }
  .step, .troubleshooting { padding-block: 30px; }
  .step h2 { gap: 12px; }
  .setting-path { padding: 13px 16px; }
  .footer-top { align-items: flex-start; flex-direction: column; gap: 13px; }
}