*,*::before,*::after{box-sizing:border-box}
:root{
  --brand:#0A0A0A;
  --bg:#FAFAF8;--surface:#FFFFFF;--ink:#0A0A0A;--ink-2:#3A3A37;--muted:#6B6B66;--line:#E7E6E1;
  --accent:oklch(0.68 0.19 45);--accent-text:oklch(0.52 0.16 42);
  --on-brand:#F5F5F2;--on-brand-2:#C9C9C4;--on-brand-muted:#9C9C96;--brand-line:#262624;--brand-hover:#1B1B1A;
  --radius:14px;--max:1120px;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){:root{--bg:#111110;--surface:#181817;--ink:#F2F2EF;--ink-2:#CFCFCA;--muted:#9A9A94;--line:#2A2A28;--accent-text:oklch(0.78 0.14 52)}}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;font-feature-settings:"cv11","ss01";background:var(--bg);color:var(--ink);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent-text);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--ink);text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--accent);color:#0A0A0A;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* Header */
.site-header{background:var(--brand);color:var(--on-brand);border-bottom:1px solid var(--brand-line);position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--on-brand);text-decoration:none;font-weight:650;font-size:16px;letter-spacing:-0.01em}
.brand:hover{color:var(--on-brand)}
.brand-mark{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px color-mix(in oklch,var(--accent) 22%,transparent)}
.nav{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{color:var(--on-brand-muted);text-decoration:none;font-size:14px;font-weight:500;padding:7px 12px;border-radius:999px;white-space:nowrap}
.nav a:hover{color:var(--on-brand);background:var(--brand-hover)}
.nav a[aria-current="page"]{color:var(--brand);background:var(--on-brand)}
@media (max-width:820px){
  .site-header{position:static}
  .site-header .wrap{flex-direction:column;align-items:stretch;gap:10px;padding-top:16px}
  .nav{margin:0 -24px;padding:0 18px 12px}
}

/* Hero */
.page-hero{background:var(--brand);color:var(--on-brand);padding:72px 0 56px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--on-brand-muted)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-hero h1{font-size:clamp(40px,6.4vw,76px);line-height:1.02;letter-spacing:-0.04em;font-weight:700;margin:18px 0 20px;max-width:16ch;text-wrap:balance}
.lede{font-size:clamp(17px,1.6vw,20px);line-height:1.55;color:var(--on-brand-2);max-width:58ch;margin:0;text-wrap:pretty}
.meta{display:flex;flex-wrap:wrap;gap:8px 32px;margin-top:40px;padding-top:20px;border-top:1px solid var(--brand-line);font-size:14px;color:var(--on-brand-muted)}
.meta strong{color:var(--on-brand);font-weight:500}
.meta a{color:var(--on-brand)}
.meta a:hover{color:var(--accent)}

/* Document layout */
.doc{display:grid;grid-template-columns:220px minmax(0,1fr);gap:72px;padding-top:56px;padding-bottom:104px}
.toc{position:sticky;top:96px;align-self:start;font-size:14px}
.toc-title{font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.toc ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.toc a{display:flex;gap:10px;padding:6px 0 6px 16px;margin-left:-1px;border-left:2px solid transparent;color:var(--muted);text-decoration:none;line-height:1.4}
.toc a span{font-variant-numeric:tabular-nums;color:var(--muted);opacity:.7}
.toc a:hover{color:var(--ink);border-left-color:var(--ink)}
@media (max-width:900px){.doc{grid-template-columns:minmax(0,1fr);gap:0;padding-top:40px}.toc{display:none}}

/* Prose */
.prose{max-width:720px}
.prose section{display:grid;grid-template-columns:44px minmax(0,1fr);gap:0 16px;padding:36px 0;border-top:1px solid var(--line);scroll-margin-top:88px}
.prose section:first-of-type{border-top:0;padding-top:0}
.num{font-size:14px;font-weight:600;color:var(--accent-text);font-variant-numeric:tabular-nums;padding-top:5px}
.prose h2{font-size:22px;line-height:1.3;letter-spacing:-0.02em;font-weight:650;margin:0 0 14px;text-wrap:balance}
.prose h3{font-size:16px;font-weight:600;margin:20px 0 8px;letter-spacing:-0.01em}
.prose p{margin:0 0 14px;color:var(--ink-2);text-wrap:pretty;overflow-wrap:anywhere}
.prose p:last-child,.prose ul:last-child,.prose ol:last-child{margin-bottom:0}
.prose ul{list-style:none;margin:0 0 14px;padding:0;display:grid;gap:8px}
.prose ul li{position:relative;padding-left:24px;color:var(--ink-2)}
.prose ul li::before{content:"";position:absolute;left:2px;top:.78em;width:10px;height:1.5px;background:var(--ink)}
.prose ol.steps{list-style:none;counter-reset:s;margin:0 0 14px;padding:0;display:grid;gap:12px}
.prose ol.steps li{counter-increment:s;position:relative;padding-left:40px;color:var(--ink-2)}
.prose ol.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:26px;height:26px;border-radius:50%;background:var(--ink);color:var(--bg);font-size:13px;font-weight:600;display:grid;place-items:center;line-height:1}
.prose strong{color:var(--ink);font-weight:600}
.path{font-size:.92em;font-weight:500;color:var(--ink);background:var(--surface);border:1px solid var(--line);padding:1px 7px;border-radius:6px}
.note{margin:0 0 14px;padding:14px 16px;border-radius:10px;background:var(--surface);border:1px solid var(--line);font-size:15px;color:var(--ink-2)}

/* At a glance */
.glance{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin:0 0 56px}
.glance div{background:var(--surface);padding:20px 22px}
.glance h3{font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.glance p{margin:0;font-size:15px;line-height:1.5;color:var(--ink)}
@media (max-width:700px){.glance{grid-template-columns:minmax(0,1fr)}}

/* CTA + buttons */
.cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px 24px;padding:24px 26px;border-radius:var(--radius);background:var(--brand);color:var(--on-brand);margin-top:8px}
.cta p{margin:0;color:var(--on-brand-2);max-width:44ch}
.cta strong{color:var(--on-brand)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;background:var(--accent);color:#0A0A0A;font-weight:600;font-size:15px;line-height:1.2;text-decoration:none;white-space:nowrap}
.btn:hover{background:var(--on-brand);color:var(--brand)}
.btn-line{background:transparent;color:var(--on-brand);box-shadow:inset 0 0 0 1px var(--brand-line)}
.btn-line:hover{background:var(--brand-hover);color:var(--on-brand)}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* Contact */
.email-big{display:inline-block;font-size:clamp(26px,4.6vw,52px);font-weight:650;letter-spacing:-0.035em;line-height:1.15;color:var(--on-brand);text-decoration:none;border-bottom:2px solid var(--accent);overflow-wrap:anywhere;margin-top:8px}
.email-big:hover{color:var(--accent)}
.section{padding:64px 0}
.section + .section{padding-top:0}
.section-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:8px 24px;margin:0 0 24px}
.section-head h2{font-size:28px;line-height:1.2;letter-spacing:-0.025em;font-weight:650;margin:0}
.section-head p{margin:0;color:var(--muted);font-size:15px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;color:var(--ink);text-decoration:none;transition:border-color .15s}
a.card:hover{border-color:var(--ink);color:var(--ink)}
.card h3{font-size:18px;line-height:1.3;letter-spacing:-0.015em;font-weight:650;margin:0}
.card p{margin:0;color:var(--muted);font-size:15px;line-height:1.55;flex:1}
.card .go{font-size:14px;font-weight:600;color:var(--accent-text)}
a.card:hover .go{color:var(--ink)}

/* Apps list */
.apps{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.apps a{display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:16px;align-items:center;padding:18px 4px;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none}
.apps a:hover{background:var(--surface)}
.apps a:hover .app-name{color:var(--accent-text)}
.app-idx{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.app-name{display:block;font-weight:600;font-size:17px;letter-spacing:-0.01em;line-height:1.35}
.app-genre{display:block;font-size:14px;color:var(--muted)}
.app-cta{font-size:14px;font-weight:500;color:var(--muted);white-space:nowrap}
@media (max-width:560px){.apps a{grid-template-columns:28px minmax(0,1fr)}.app-cta{display:none}}

/* Footer */
.site-footer{background:var(--brand);color:var(--on-brand-muted);padding:48px 0;font-size:14px;border-top:1px solid var(--brand-line)}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px 32px}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 22px}
.site-footer a{color:var(--on-brand-muted);text-decoration:none}
.site-footer a:hover{color:var(--on-brand)}