:root{
  --ink:#0A0A0A;
  --bg:#FAFAF8;
  --surface:#FFFFFF;
  --hover:#F3F2EE;
  --line:#E6E5E0;
  --line-strong:#D3D2CC;
  --text:#0A0A0A;
  --text-2:#2A2A28;
  --muted:#5E5D58;
  --subtle:#8A8984;
  --accent:#FF5A1F;
  --accent-ink:#B5390B;
  --on-ink:#F4F4F1;
  --on-ink-muted:#B0B0AA;
  --maxw:1120px;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0A0A0A;--surface:#121212;--hover:#181818;--line:#222222;--line-strong:#333333;
    --text:#F4F4F1;--text-2:#D9D9D4;--muted:#A6A5A0;--subtle:#76756F;--accent-ink:#FF7A47;
  }
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.65;color:var(--text);background:var(--bg);font-feature-settings:"cv11";-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit}
a:hover{color:var(--accent-ink)}
::selection{background:var(--accent);color:#0A0A0A}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px}
.skip{position:absolute;left:16px;top:-48px;z-index:20;padding:10px 16px;border-radius:8px;background:var(--accent);color:#0A0A0A;font-weight:600;text-decoration:none}
.skip:focus{top:12px}

/* Header */
.site-header{position:sticky;top:0;z-index:10;background:rgba(10,10,10,.9);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);color:var(--on-ink);border-bottom:1px solid #1E1E1E}
.bar{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:650;font-size:16px;letter-spacing:-.01em;text-decoration:none;color:inherit}
.brand:hover{color:inherit}
.brand::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,90,31,.18)}
.nav{display:flex;gap:4px}
.nav a{padding:8px 14px;border-radius:999px;font-size:14px;font-weight:500;color:#A8A8A3;text-decoration:none;white-space:nowrap;transition:color .2s,background .2s}
.nav a:hover{color:#FFFFFF;background:#1A1A1A}
.nav a[aria-current="page"]{color:#0A0A0A;background:var(--on-ink)}
@media (max-width:720px){
  .bar{flex-wrap:wrap;gap:6px;padding-top:12px}
  .nav{width:calc(100% + 48px);margin:0 -24px;padding:0 20px 12px;overflow-x:auto;scrollbar-width:none}
  .nav::-webkit-scrollbar{display:none}
}

/* Buttons */
.actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;border:1px solid transparent;font:600 15px/1 "Inter",system-ui,sans-serif;text-decoration:none;cursor:pointer;transition:background .2s,border-color .2s,color .2s,transform .2s}
.btn:active{transform:scale(.98)}
.btn-accent{background:var(--accent);color:#0A0A0A}
.btn-accent:hover{background:#FF7440;color:#0A0A0A}
.btn-ghost{background:transparent;color:var(--on-ink);border-color:#353535}
.btn-ghost:hover{border-color:var(--on-ink);color:var(--on-ink)}
.btn-ink{background:var(--text);color:var(--bg)}
.btn-ink:hover{background:var(--text-2);color:var(--bg)}
.btn-line{background:var(--surface);color:var(--text);border-color:var(--line-strong)}
.btn-line:hover{border-color:var(--text);color:var(--text)}

/* Home hero */
.hero{position:relative;overflow:hidden;background:var(--ink);color:var(--on-ink)}
.hero .wrap{position:relative;z-index:1;padding-top:96px;padding-bottom:176px}
.chip{display:inline-flex;align-items:center;gap:10px;padding:6px 14px 6px 12px;border:1px solid #2A2A2A;border-radius:999px;background:#121212;font-size:13px;font-weight:500;color:#C9C9C4}
.live{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 1.8s ease-out infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,90,31,.6)}100%{box-shadow:0 0 0 10px rgba(255,90,31,0)}}
.hero h1{max-width:13ch;margin:28px 0 24px;font-size:clamp(44px,7.4vw,96px);font-weight:700;line-height:.98;letter-spacing:-.048em;text-wrap:balance}
.hero h1 em{font-style:normal;color:var(--accent)}
.lead{max-width:54ch;margin:0 0 36px;font-size:clamp(17px,1.6vw,20px);line-height:1.6;color:var(--on-ink-muted);text-wrap:pretty}
.eq{position:absolute;left:0;right:0;bottom:0;max-width:var(--maxw);height:128px;margin:0 auto;padding:0 24px;display:flex;align-items:flex-end;gap:6px;pointer-events:none}
.eq span{flex:1;height:calc(var(--h) * 1%);border-radius:3px 3px 0 0;background:#1F1F1F;transform-origin:bottom;animation:eq 1.5s ease-in-out infinite alternate;animation-delay:calc(var(--d) * -1s)}
.eq span.on{background:var(--accent)}
@keyframes eq{0%{transform:scaleY(.22)}100%{transform:scaleY(1)}}
@media (max-width:640px){.eq span:nth-child(n+25){display:none}.hero .wrap{padding-top:64px;padding-bottom:150px}}

/* Sections */
.section{padding:96px 0}
.section + .section{padding-top:0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px 32px;margin-bottom:40px}
.section-head h2{margin:0;font-size:clamp(30px,3.8vw,46px);font-weight:700;line-height:1.08;letter-spacing:-.035em;text-wrap:balance}
.section-head p{max-width:42ch;margin:0;color:var(--muted)}
.eyebrow{margin:0 0 14px;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-ink)}

/* App list */
.apps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:48px;border-top:1px solid var(--line);counter-reset:app}
.apps li{border-bottom:1px solid var(--line);counter-increment:app}
.apps a{display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:16px;padding:20px 4px;font-size:17px;font-weight:550;letter-spacing:-.012em;text-decoration:none}
.apps a::before{content:counter(app,decimal-leading-zero);font-size:13px;font-weight:500;color:var(--subtle);font-variant-numeric:tabular-nums}
.apps a:hover{color:var(--text)}
.apps .go{font-size:13px;font-weight:500;color:var(--muted);white-space:nowrap;transition:color .2s,transform .2s}
.apps a:hover .go{color:var(--accent-ink);transform:translateX(3px)}
@media (max-width:760px){.apps{grid-template-columns:1fr}.apps .go{font-size:0}.apps .go::after{content:"↗";font-size:16px}}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.card{display:flex;flex-direction:column;gap:10px;min-height:236px;padding:28px;border:1px solid var(--line);border-radius:20px;background:var(--surface);text-decoration:none;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--text);color:var(--text);transform:translateY(-3px)}
.card .k{font-size:13px;color:var(--subtle);font-variant-numeric:tabular-nums}
.card h3{margin:auto 0 0;font-size:21px;font-weight:650;letter-spacing:-.022em;line-height:1.2}
.card p{margin:0;font-size:15px;line-height:1.55;color:var(--muted)}
.card .more{margin-top:10px;font-size:14px;font-weight:600}
@media (max-width:960px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.cards{grid-template-columns:1fr}.card{min-height:0}}

/* Page hero */
.page-hero{background:var(--ink);color:var(--on-ink);border-bottom:1px solid #1E1E1E}
.page-hero .wrap{padding-top:80px;padding-bottom:64px}
.page-hero .eyebrow{color:var(--accent)}
.page-hero h1{margin:0 0 20px;font-size:clamp(40px,5.8vw,72px);font-weight:700;line-height:1;letter-spacing:-.045em;text-wrap:balance}
.page-hero p{max-width:60ch;margin:0;font-size:18px;color:var(--on-ink-muted);text-wrap:pretty}
.meta{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:32px;font-size:14px;color:#8F8F8A}
.meta span{display:inline-flex;align-items:center;gap:8px}
.meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:#4A4A48}

/* Document layout */
.doc{display:grid;grid-template-columns:220px minmax(0,1fr);gap:80px;padding-top:64px;padding-bottom:112px}
.toc{position:sticky;top:96px;align-self:start}
.toc-title{margin:0 0 12px;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--subtle)}
.toc ol{list-style:none;margin:0;padding:0;display:grid;gap:2px;counter-reset:toc}
.toc li{counter-increment:toc}
.toc a{display:flex;gap:12px;padding:6px 0;font-size:14px;line-height:1.4;color:var(--muted);text-decoration:none;transition:color .2s}
.toc a::before{content:counter(toc,decimal-leading-zero);min-width:18px;padding-top:1px;font-size:12px;color:var(--subtle);font-variant-numeric:tabular-nums}
.toc a:hover,.toc a.active{color:var(--text)}
.toc a.active::before{color:var(--accent-ink)}
@media (max-width:900px){
  .doc{grid-template-columns:1fr;gap:40px;padding-top:40px}
  .toc{position:static;padding:20px 22px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}
}

/* Prose */
.prose{max-width:720px}
.prose .intro{margin:0 0 8px;font-size:19px;line-height:1.6;color:var(--text);letter-spacing:-.006em;text-wrap:pretty}
.prose section{margin-top:40px;padding-top:40px;border-top:1px solid var(--line);scroll-margin-top:88px}
.prose h2{display:flex;align-items:baseline;gap:16px;margin:0 0 16px;font-size:22px;font-weight:650;line-height:1.3;letter-spacing:-.02em}
.prose h2 .num{min-width:22px;font-size:13px;font-weight:600;color:var(--accent-ink);font-variant-numeric:tabular-nums}
.prose h3{margin:24px 0 8px;font-size:16px;font-weight:650;letter-spacing:-.01em}
.prose p,.prose li,.prose dd{color:var(--text-2);text-wrap:pretty}
.prose p{margin:0 0 14px}
.prose strong{color:var(--text);font-weight:600}
.prose a:not(.btn){color:var(--text);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:1.5px;text-underline-offset:3px;overflow-wrap:anywhere;transition:color .2s}
.prose a:not(.btn):hover{color:var(--accent-ink)}
.prose ul{list-style:none;margin:0 0 16px;padding:0;display:grid;gap:8px}
.prose ul li{position:relative;padding-left:24px}
.prose ul li::before{content:"";position:absolute;left:4px;top:.68em;width:6px;height:6px;border-radius:1px;background:var(--accent)}
.prose ol.steps{list-style:none;margin:4px 0 18px;padding:0;display:grid;gap:12px;counter-reset:step}
.prose ol.steps li{display:grid;grid-template-columns:28px minmax(0,1fr);gap:14px;align-items:start;counter-increment:step}
.prose ol.steps li::before{content:counter(step);display:grid;place-items:center;width:28px;height:28px;margin-top:-1px;border:1px solid var(--line-strong);border-radius:50%;background:var(--surface);font-size:13px;font-weight:600;color:var(--text)}
.path{padding:1px 7px;border:1px solid var(--line);border-radius:6px;background:var(--surface);font-size:.92em;font-weight:550;color:var(--text);-webkit-box-decoration-break:clone;box-decoration-break:clone}
.rows{margin:8px 0 18px;border:1px solid var(--line);border-radius:18px;background:var(--surface);overflow:hidden}
.rows .row{display:grid;grid-template-columns:190px minmax(0,1fr);gap:20px;padding:18px 22px;border-top:1px solid var(--line)}
.rows .row:first-child{border-top:0}
.rows dt{font-size:15px;font-weight:600;color:var(--text)}
.rows dd{margin:0;font-size:15px}
@media (max-width:600px){.rows .row{grid-template-columns:1fr;gap:4px}}
.cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;margin-top:56px;padding:32px;border:1px solid #1E1E1E;border-radius:22px;background:var(--ink);color:var(--on-ink)}
.cta h3{margin:0 0 4px;font-size:20px;font-weight:650;letter-spacing:-.02em}
.prose .cta p,.cta p{margin:0;color:var(--on-ink-muted)}

/* Contact */
.contact{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:20px;padding-top:64px;padding-bottom:112px}
.mailbox{display:flex;flex-direction:column;gap:20px;padding:40px;border:1px solid var(--line);border-radius:24px;background:var(--surface)}
.mailbox .eyebrow{margin:0}
.mail-big{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.1;letter-spacing:-.035em;text-decoration:none;overflow-wrap:anywhere}
.mailbox p{margin:0;color:var(--muted);max-width:44ch}
.mailbox .actions{margin-top:auto;padding-top:12px}
.topics{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:24px;background:var(--surface);overflow:hidden}
.topics-title{margin:0;padding:24px 24px 16px;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--subtle)}
.topic{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 16px;padding:20px 24px;border-top:1px solid var(--line);text-decoration:none;transition:background .2s}
.topic:hover{background:var(--hover);color:var(--text)}
.topic strong{font-weight:600;letter-spacing:-.01em}
.topic span{grid-column:1;font-size:14px;color:var(--muted)}
.topic i{grid-column:2;grid-row:1 / 3;align-self:center;font-style:normal;color:var(--subtle);transition:transform .2s,color .2s}
.topic:hover i{color:var(--accent-ink);transform:translateX(3px)}
@media (max-width:860px){.contact{grid-template-columns:1fr;padding-top:40px}.mailbox{padding:28px}}

/* Footer */
.site-footer{border-top:1px solid var(--line)}
.foot{display:grid;grid-template-columns:1.3fr 2fr auto;gap:32px;padding-top:48px;padding-bottom:36px;align-items:start}
.foot .brand{color:var(--text)}
.foot-brand p{max-width:30ch;margin:12px 0 0;font-size:14px;color:var(--muted)}
.foot-links{display:flex;flex-wrap:wrap;gap:10px 28px}
.foot-links a,.foot-mail{font-size:14px;color:var(--muted);text-decoration:none}
.foot-links a:hover,.foot-mail:hover{color:var(--text)}
.foot-base{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:20px;padding-bottom:32px;border-top:1px solid var(--line);font-size:13px;color:var(--subtle)}
.foot-base a{color:var(--subtle);text-decoration:none}
.foot-base a:hover{color:var(--text)}
@media (max-width:760px){.foot{grid-template-columns:1fr;gap:24px}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}