:root{
  --bg:#f6f4ef;--surface:#fffdf8;--ink:#16191d;--muted:#4a5058;--line:#d9d4c8;
  --accent:#c2410c;--accent-ink:#9a3412;--accent-soft:#fbe7d8;--code:#ece8de;
  --focus:#1d4ed8;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#111417;--surface:#181c20;--ink:#ecebe6;--muted:#a9aeb5;--line:#2c3238;
    --accent:#fb923c;--accent-ink:#fdba74;--accent-soft:#2a1d14;--code:#20262c;
    --focus:#93c5fd;
  }
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 var(--sans)}
img,svg{max-width:100%;height:auto}
a{color:var(--accent-ink);text-underline-offset:.2em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:2px}
.wrap{max-width:68rem;margin:0 auto;padding:0 16px}
@media (min-width:640px){.wrap{padding:0 28px}}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--bg);padding:8px 12px;z-index:9}
.skip:focus{left:8px}

/* header */
.top{border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:1.15rem;letter-spacing:-.01em}
.brand svg{width:26px;height:26px;flex:none}
.brand b{color:var(--accent-ink);font-weight:700}
.nav{display:flex;gap:18px;flex-wrap:wrap;font-size:.95rem}
.nav a{color:var(--muted);text-decoration:none}
.nav a:hover{color:var(--ink);text-decoration:underline}

/* type */
h1,h2,h3{line-height:1.2;letter-spacing:-.015em;margin:0 0 .5em}
h1{font-size:clamp(2rem,6vw,3.25rem);max-width:20ch}
h2{font-size:clamp(1.5rem,3.5vw,2rem)}
h3{font-size:1.1rem}
p{margin:0 0 1em}
.lede{font-size:1.2rem;color:var(--muted);max-width:44rem}
.label{font:600 .78rem/1 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--accent-ink);margin:0 0 14px;display:block}
code,.mono{font-family:var(--mono);font-size:.9em}
code{background:var(--code);padding:.1em .35em;border-radius:3px}

section{padding:64px 0;border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:0}

/* hero */
.hero{padding:72px 0 64px}
.hero .meta{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:28px;font:.85rem/1.4 var(--mono);color:var(--muted);padding:0;list-style:none}
.hero .meta li::before{content:"";display:inline-block;width:7px;height:7px;background:var(--accent);margin-right:8px;vertical-align:middle}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-block;padding:12px 20px;border:2px solid var(--ink);color:var(--ink);text-decoration:none;font-weight:600;border-radius:4px}
.btn.primary{background:var(--ink);color:var(--bg)}
.btn:hover{background:var(--accent-ink);border-color:var(--accent-ink);color:var(--bg)}

/* steps */
.steps{list-style:none;margin:32px 0 0;padding:0;display:grid;gap:0;grid-template-columns:1fr;border:1px solid var(--line);background:var(--surface);counter-reset:s}
@media (min-width:760px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps li{padding:24px;border-bottom:1px solid var(--line);counter-increment:s}
@media (min-width:760px){.steps li{border-bottom:0;border-right:1px solid var(--line)}.steps li:last-child{border-right:0}}
.steps li:last-child{border-bottom:0}
.steps li::before{content:"0" counter(s);display:block;font:600 .85rem var(--mono);color:var(--accent-ink);margin-bottom:12px}
.steps p{color:var(--muted);font-size:.97rem;margin:0}

/* diff */
.grid3{display:grid;gap:24px;grid-template-columns:1fr;margin-top:32px}
@media (min-width:760px){.grid3{grid-template-columns:repeat(3,1fr)}}
.card{border-top:3px solid var(--accent);padding-top:18px}
.card p{color:var(--muted);margin:0}
.not{margin-top:36px;padding:20px 24px;background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--ink)}
.not ul{margin:8px 0 0;padding-left:1.2em;color:var(--muted)}

/* partner */
.partner .box{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:860px){.partner .box{grid-template-columns:3fr 2fr}}
.checks{padding-left:1.2em;color:var(--muted)}
.checks li{margin-bottom:6px}
.contact{background:var(--surface);border:1px solid var(--line);padding:24px;align-self:start}
.email{display:block;font:600 1.25rem/1.3 var(--mono);word-break:break-all;margin:8px 0 14px;user-select:all;-webkit-user-select:all;color:var(--ink);background:var(--code);padding:12px 14px;border-radius:4px}
.small{font-size:.9rem;color:var(--muted)}

/* faq */
.faq{margin-top:28px;max-width:48rem}
.faq details{border-top:1px solid var(--line);padding:4px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:600;padding:14px 28px 14px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:12px;font:600 1.2rem var(--mono);color:var(--accent-ink)}
.faq details[open] summary::after{content:"\2212"}
.faq details p{color:var(--muted);margin:0 0 16px}

/* legal pages */
.doc{max-width:46rem;padding:48px 0 64px}
.doc h2{font-size:1.35rem;margin-top:2em}
.doc ul{padding-left:1.2em}
.doc li{margin-bottom:6px}
.draft{border:2px dashed var(--accent);background:var(--accent-soft);padding:14px 18px;font-weight:600;margin:0 0 28px}
table{border-collapse:collapse;width:100%;font-size:.95rem;margin:12px 0 20px}
th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:8px 10px 8px 0}
th{font-weight:600}
.tbl{overflow-x:auto}

/* footer */
footer{border-top:1px solid var(--line);padding:32px 0 40px;font-size:.92rem;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a{color:var(--muted)}