@font-face{font-family:'Schibsted Grotesk';font-style:normal;font-weight:400 800;font-display:swap;src:url(/fonts/schibsted-grotesk.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/ibm-plex-mono-400.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/ibm-plex-mono-500.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:'Roboto Mono';font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/roboto-mono-400.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
:root{
  --paper:#F7F6F3; --surface:#FFFFFF; --ink:#1E2126; --graphite:#5A606A; --faint:#8E949C;
  --rule:#E5E3DE; --well:#EFEEEA; --accent:#4A5F86; --accent-soft:#E9EDF4;
  --invert-bg:#ECEAE4; --invert-fg:#1E2126;
  --sans:"Schibsted Grotesk",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --max:1180px; --radius:0px; --mark:color-mix(in srgb,var(--ink) 55%,transparent); --dot:color-mix(in srgb,var(--accent) 28%,transparent);
  --logo:url("/logo.png");
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#121418; --surface:#181B20; --ink:#E4E4E1; --graphite:#A0A6AF; --faint:#6C727B;
    --rule:#262A31; --well:#1C1F25; --accent:#9DB0D6; --accent-soft:#1D2431;
    --invert-bg:#1A1D22; --invert-fg:#E4E4E1;
  }
}
:root[data-theme="dark"]{
  --paper:#121418; --surface:#181B20; --ink:#E4E4E1; --graphite:#A0A6AF; --faint:#6C727B;
  --rule:#262A31; --well:#1C1F25; --accent:#9DB0D6; --accent-soft:#1D2431;
  --invert-bg:#1A1D22; --invert-fg:#E4E4E1;
}
*{box-sizing:border-box}
html,body{margin:0}
html{scroll-padding-top:88px}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
[hidden]{display:none!important}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:clamp(18px,4vw,40px)}
.label{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
h1,h2,h3{text-wrap:balance;margin:0}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:var(--accent-soft)}

/* logo: the stacked ATTO/LOOP mark, tinted by theme */
.logo{display:block;aspect-ratio:800/481;background:var(--ink);-webkit-mask:var(--logo) center/contain no-repeat;mask:var(--logo) center/contain no-repeat}

/* nav */
nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:color-mix(in srgb,var(--paper) 84%,transparent);backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--rule)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:66px}
nav .logo{height:42px}
nav ul{display:flex;gap:clamp(18px,3vw,34px);list-style:none;margin:0;padding:0}
nav ul a{text-decoration:none;color:var(--graphite);font-size:15px;font-weight:500;padding-block:6px;border-bottom:1.5px solid transparent;transition:color .15s,border-color .15s}
nav ul a:hover{color:var(--ink)}
nav ul a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--accent)}
.btn{display:inline-flex;align-items:center;gap:12px;height:46px;padding-inline:22px;border-radius:0;font-weight:500;font-size:15px;text-decoration:none;border:1px solid var(--ink);transition:background .2s,color .2s,transform .2s;font-family:var(--sans);cursor:pointer}
.btn.solid{background:var(--ink);color:var(--paper)}
.btn.solid::after{content:"→";transition:transform .2s}
.btn.solid:hover::after{transform:translateX(3px)}
.btn.solid:hover{background:color-mix(in srgb,var(--ink) 86%,var(--paper));transform:translateY(-1px)}

/* hero */
.hero{padding-block:clamp(56px,8vw,112px) clamp(56px,7vw,96px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(32px,5vw,72px);align-items:center}
.hero h1{font-size:clamp(40px,4.4vw,62px);line-height:1.02;letter-spacing:-.032em;font-weight:650;margin-top:18px}
.hero h1 .soft{color:var(--faint)}
@media (min-width:1200px){.hero h1{font-size:min(3.9vw,58px)}.hero h1 .nw{white-space:nowrap}}
.hero .lede{margin-top:26px;font-size:clamp(18px,1.5vw,20px);line-height:1.6;color:var(--graphite);max-width:31em}
.flow{width:100%;margin:0}
.flow canvas{display:block;width:100%;height:340px}
.flow-cap{display:flex;justify-content:space-between;gap:12px;margin-top:10px;font-family:var(--mono);font-size:12px;color:var(--faint)}

/* sections */
section.block{padding-block:clamp(72px,10vw,128px)}
section.ruled{border-top:1px solid var(--rule)}
.head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:end;margin-bottom:48px}
.head h2{font-size:clamp(32px,3.8vw,48px);line-height:1.06;letter-spacing:-.028em;font-weight:650}
.head p{color:var(--graphite);max-width:32em}

/* foundry loop */
.loopgrid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:center}
.ring{position:relative;width:100%;max-width:520px;justify-self:center}
.ring svg{display:block;width:100%;height:auto;overflow:visible}
.ring .base{fill:none;stroke:var(--ink);stroke-width:2.5;transition:stroke .2s}
.ring.on .base{stroke:var(--rule)}
.ring .arc{fill:none;stroke:var(--ink);stroke-width:2.5;transition:stroke .2s,stroke-width .2s}
.ring .hit{fill:none;stroke:transparent;stroke-width:28;cursor:pointer}
.ring .dot{fill:var(--paper);stroke:var(--ink);stroke-width:1.5;cursor:pointer;transition:r .15s,fill .2s,stroke .2s}
.ring .chev{fill:none;stroke:var(--ink);stroke-width:2.5;transition:stroke .2s}
.ring .appr{fill:var(--paper);stroke:var(--ink);stroke-width:1.5;stroke-dasharray:3 3;cursor:pointer}
.ring text{font-family:var(--mono);font-size:11px;fill:var(--faint);letter-spacing:.06em}
.ring.on .arc,.ring.on .chev{stroke:var(--rule)}
.ring.on .dot{stroke:var(--rule)}
.ring .g.act .arc{stroke:var(--accent);stroke-width:4}
.ring .g.act .chev{stroke:var(--accent)}
.ring .g.act .dot{stroke:var(--accent);fill:var(--accent)}
.ring .dot.hot{r:7}
.ring-c{position:absolute;inset:0 0 auto 0;aspect-ratio:1;display:grid;place-content:center;text-align:center;pointer-events:none;padding:26%}
.ring-c .t{font-size:clamp(20px,2.4vw,27px);font-weight:650;letter-spacing:-.02em;line-height:1.12;margin-top:6px;text-wrap:balance}
.ring-c .s{margin-top:8px;font-size:14px;color:var(--graphite);text-wrap:balance}
.ring .dot.skip{fill:var(--paper)!important;stroke-dasharray:2 2}
.pop{position:absolute;z-index:3;width:min(280px,64%);background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:14px 16px 16px;box-shadow:0 12px 32px color-mix(in srgb,var(--ink) 10%,transparent)}
.pop .k{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--faint)}
.pop .t{font-weight:650;font-size:17px;margin-top:4px;letter-spacing:-.01em}
.pop p{margin-top:6px;font-size:14.5px;line-height:1.5;color:var(--graphite)}
.pop.skip p{color:var(--faint)}
.pop button{all:unset;position:absolute;top:8px;right:12px;cursor:pointer;font-size:18px;line-height:1;color:var(--faint)}
.exbar{display:flex;justify-content:center;align-items:center;gap:16px;margin-top:18px}
.next{all:unset;box-sizing:border-box;display:inline-flex;align-items:center;gap:12px;height:48px;padding:0 10px 0 22px;border:1px solid var(--rule);border-radius:0;background:var(--surface);cursor:pointer;font-weight:500;font-size:15px;white-space:nowrap;transition:border-color .2s,background .2s}
.next svg{width:30px;height:30px;flex:none;transition:transform .2s}
.next:hover{border-color:var(--ink)}
.next:hover svg{transform:translateX(4px)}
.next:active svg{transform:translateX(8px)}
.next:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.flist{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}
.flist li{display:grid;gap:4px;padding:20px 4px;border-bottom:1px solid var(--rule);cursor:pointer;transition:opacity .2s}
.flist b{font-size:24px;letter-spacing:-.02em;font-weight:650}
.flist li > span:last-child{color:var(--graphite)}
.flist.on li{opacity:.4}
.flist.on li.act{opacity:1}

/* integrity band: a calm raised surface, not a black slab */
.invert{background:var(--invert-bg);color:var(--invert-fg)}
.invert .label,.invert .head p{color:color-mix(in srgb,var(--invert-fg) 58%,transparent)}
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,28px)}
.trio div{padding:22px 22px 24px;border:1px solid var(--rule);border-radius:var(--radius);display:grid;gap:8px;align-content:start;background:color-mix(in srgb,var(--surface) 80%,transparent)}
.trio h3{font-size:20px;letter-spacing:-.015em;font-weight:600}
.trio p{color:color-mix(in srgb,var(--invert-fg) 66%,transparent);font-size:15.5px}

/* what we build */
.quad{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(14px,2vw,22px)}
.quad > div{padding:22px 22px 24px;background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);display:grid;gap:6px;align-content:start}
.quad h3{font-size:19px;letter-spacing:-.015em;font-weight:600}
.quad p{color:var(--graphite);font-size:15.5px}

/* research list */
.posts{list-style:none;margin:56px 0 0;padding:0;display:grid;gap:16px}
.posts a{display:grid;gap:8px;padding:28px 30px;background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);text-decoration:none;transition:border-color .2s,transform .2s,box-shadow .2s}
.posts a:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--rule));transform:translateY(-2px);box-shadow:0 14px 34px color-mix(in srgb,var(--ink) 7%,transparent)}
.posts b{font-size:clamp(24px,2.6vw,30px);letter-spacing:-.022em;font-weight:650}
.posts .ex{color:var(--graphite);max-width:46em}
.posts .more{color:var(--accent);font-size:15px;font-weight:500;margin-top:6px}

/* research post */
.progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:6;pointer-events:none}
.progress span{display:block;height:100%;background:var(--accent);transform-origin:0 50%;transform:scaleX(0)}
.post{padding-block:clamp(40px,6vw,72px) clamp(72px,10vw,120px)}
.post-head{max-width:760px}
.back{text-decoration:none;display:inline-flex;gap:6px;color:var(--faint);transition:color .15s}
.back:hover{color:var(--ink)}
.post-head h1{font-size:clamp(42px,6vw,68px);line-height:1.02;letter-spacing:-.035em;font-weight:650;margin-top:22px}
.post-head .lede{margin-top:16px;font-size:clamp(19px,1.9vw,23px);line-height:1.45;color:var(--graphite)}
.meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:22px;font-family:var(--mono);font-size:12.5px;color:var(--faint);letter-spacing:.02em}
.meta span + span::before{content:"·";margin-right:18px;color:var(--faint)}
.post-grid{display:grid;grid-template-columns:200px minmax(0,700px);gap:clamp(40px,5vw,80px);margin-top:clamp(40px,6vw,64px);justify-content:start}
.toc{position:sticky;top:96px;align-self:start;font-size:14px}
.toc .label{display:block;margin-bottom:12px}
.toc ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--rule)}
.toc a{display:block;padding:6px 0 6px 14px;margin-left:-1px;border-left:2px solid transparent;color:var(--faint);text-decoration:none;line-height:1.35;transition:color .15s,border-color .15s}
.toc a:hover{color:var(--ink)}
.toc a.on{color:var(--ink);border-left-color:var(--accent)}

.prose{font-size:18px;line-height:1.75;color:color-mix(in srgb,var(--ink) 90%,var(--paper))}
.prose > * + *{margin-top:1.15em}
.prose h2{font-size:clamp(26px,2.8vw,32px);letter-spacing:-.022em;line-height:1.15;margin-top:2.6em;font-weight:650;color:var(--ink)}
.prose h2 .num{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--accent);font-weight:500;margin-bottom:10px}
.prose h3{font-size:20px;letter-spacing:-.012em;margin-top:2em;font-weight:600;color:var(--ink)}
.prose hr{display:none}
.prose ul,.prose ol{padding-left:1.25em}
.prose li + li{margin-top:.5em}
.prose li::marker{color:var(--faint)}
.prose a{color:var(--accent);text-decoration:underline;text-decoration-thickness:1px;text-decoration-color:color-mix(in srgb,var(--accent) 35%,transparent);text-underline-offset:3px;transition:text-decoration-color .15s}
.prose a:hover{text-decoration-color:var(--accent)}
.prose strong{font-weight:600;color:var(--ink)}
.prose blockquote{margin-inline:0;padding:4px 0 4px 20px;border-left:2px solid var(--accent);color:var(--graphite);font-style:italic}
.prose code{font-family:var(--mono);font-size:.84em;background:var(--well);padding:.12em .4em;border-radius:2px;color:var(--ink)}
.prose pre{background:var(--well);border:1px solid var(--rule);padding:16px 20px;overflow-x:auto;border-radius:0;line-height:1.5}
.prose pre code{background:none;padding:0;font-size:13.5px}
.prose table{border-collapse:separate;border-spacing:0;width:100%;font-size:15px;line-height:1.5;display:table;border:1px solid var(--rule);border-radius:0;background:var(--surface)}
.prose th,.prose td{text-align:left;padding:11px 14px;vertical-align:top}
.prose td{border-top:1px solid var(--rule)}
.prose th{font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--faint);font-weight:500;background:var(--well)}
.prose p:has(img){margin-top:1.8em}
.prose img{display:block;width:100%;height:auto;border:1px solid var(--rule);border-radius:0}
.prose p:has(img) > em{display:block;font-size:14.5px;line-height:1.5;color:var(--faint);font-style:normal;margin-top:12px}
.prose p.note{font-size:14.5px;line-height:1.55;color:var(--faint)}
.prose p.note em{font-style:normal}
.prose details{border:1px solid var(--rule);border-radius:0;background:var(--surface);padding:0 20px;transition:border-color .2s}
.prose details + details{margin-top:12px}
.prose details:hover{border-color:color-mix(in srgb,var(--accent) 40%,var(--rule))}
.prose summary{cursor:pointer;padding:16px 0;font-size:16.5px;line-height:1.45;list-style:none;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:baseline}
.prose summary::-webkit-details-marker{display:none}
.prose summary::before{content:"Transcript";font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);padding:3px 8px;border-radius:0;align-self:center}
.prose summary::after{content:"+";color:var(--faint);font-size:20px;line-height:1;align-self:center}
.prose details[open] summary::after{content:"−"}
.prose summary b{font-weight:600;color:var(--ink)}
.prose details[open]{padding-bottom:20px}
.prose details[open] summary{border-bottom:1px solid var(--rule);margin-bottom:16px}
.prose details > * + *{margin-top:1em}
.prose #references ~ ul{font-size:15px;line-height:1.6;color:var(--graphite)}

.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:1.6em}
.stat{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:20px 22px}
.stat .who{font-size:15px;font-weight:600;color:var(--ink)}
.stat .runs{font-family:var(--mono);font-size:12px;color:var(--faint);margin-left:6px}
.stat dl{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:16px 0 0}
.stat dl div{display:flex;flex-direction:column;gap:4px}
.stat dt{font-size:13px;line-height:1.4;color:var(--faint);order:2}
.stat dd{margin:0;font-size:30px;font-weight:650;letter-spacing:-.025em;color:var(--ink);line-height:1.1}
.stat dd small{font-size:15px;color:var(--faint);font-weight:500;letter-spacing:0}
.stat dd.miss{color:var(--accent)}

.cta{margin-top:clamp(56px,7vw,80px);padding:clamp(26px,4vw,36px);background:var(--surface);border:1px solid var(--rule);border-radius:0;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px}
.cta h2{font-size:clamp(22px,2.4vw,28px);letter-spacing:-.02em;font-weight:650;max-width:18em;line-height:1.2}
.cta p{color:var(--graphite);margin-top:6px}

/* easter egg: type "atto", or tap the logo 5 times */
body > *{transition:transform .9s cubic-bezier(.7,0,.2,1),opacity .9s}
html.atto body > *:not(.egg){transform:scale(.0001);opacity:0}
.egg{position:fixed;inset:0;z-index:50;display:grid;place-content:center;justify-items:center;gap:14px;background:var(--paper);color:var(--ink);text-align:center;padding-inline:16px;opacity:0;pointer-events:none;transition:opacity .6s .5s}
html.atto .egg{opacity:1;pointer-events:auto}
.egg .n{font-family:"Roboto Mono",var(--mono);font-size:clamp(72px,14vw,168px);line-height:1.2;letter-spacing:-.04em;transform:scale(.4);transition:transform 1.2s .5s cubic-bezier(.2,.8,.2,1)}
html.atto .egg .n{transform:none}
.egg .n sup{font-size:.4em;vertical-align:1.4em;letter-spacing:0}
.egg p{font-size:clamp(18px,2vw,22px)}
.egg small{font-family:var(--mono);font-size:12px;color:var(--faint)}

/* footer */
.closing{border-top:1px solid var(--rule);padding-block:clamp(64px,9vw,104px)}
.closing .row{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:28px}
.closing h2{font-size:clamp(28px,3.4vw,42px);letter-spacing:-.028em;font-weight:650;line-height:1.1;max-width:16em}
.site-foot{border-top:1px solid var(--rule);padding-block:26px}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;color:var(--faint);font-family:var(--mono);font-size:12.5px}

/* inner pages */
.page{padding-block:clamp(64px,9vw,120px);min-height:62vh}
.page h1{font-size:clamp(40px,5.6vw,68px);line-height:1.02;letter-spacing:-.034em;font-weight:650;margin-top:18px;max-width:14em}
.page .lede{margin-top:22px;font-size:clamp(18px,1.6vw,21px);line-height:1.55;color:var(--graphite);max-width:32em}
.page .actions{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px}
.empty{margin-top:56px;border-top:1px solid var(--rule);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-family:var(--mono);font-size:13px;color:var(--graphite)}

@media (max-width:1100px){
  .post-grid{grid-template-columns:minmax(0,700px)}
  .toc{display:none}
}
@media (max-width:900px){
  .hero-grid,.head,.loopgrid{grid-template-columns:1fr}
  .head{gap:14px;margin-bottom:32px}
  .trio{grid-template-columns:1fr}
  .quad{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow canvas{height:280px}
}
@media (max-width:620px){
  .stats,.quad{grid-template-columns:1fr}
  .prose table{display:block;overflow-x:auto}
  .prose{font-size:17px}
}
@media (max-width:520px){
  .ring-c{padding:24%}
  .ring-c .s,.ring .appr-l{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* registration marks: small brackets at the corners of card-like surfaces */
.quad > div,.trio div,.stat,.posts a,.cta,.prose details{position:relative}
.quad > div::after,.trio div::after,.stat::after,.posts a::after,.cta::after,.prose details::after,.pop::after{
  content:"";position:absolute;inset:-1px;pointer-events:none;
  background:
    linear-gradient(var(--mark),var(--mark)) left top/10px 1.5px no-repeat,
    linear-gradient(var(--mark),var(--mark)) left top/1.5px 10px no-repeat,
    linear-gradient(var(--mark),var(--mark)) right top/10px 1.5px no-repeat,
    linear-gradient(var(--mark),var(--mark)) right top/1.5px 10px no-repeat,
    linear-gradient(var(--mark),var(--mark)) left bottom/10px 1.5px no-repeat,
    linear-gradient(var(--mark),var(--mark)) left bottom/1.5px 10px no-repeat,
    linear-gradient(var(--mark),var(--mark)) right bottom/10px 1.5px no-repeat,
    linear-gradient(var(--mark),var(--mark)) right bottom/1.5px 10px no-repeat}
.invert .trio div{--mark:color-mix(in srgb,var(--invert-fg) 55%,transparent)}

/* dot fields: a faint, fading cluster behind page and post headers */
.page,.post{position:relative;overflow-x:clip}
.page::before,.post::before{content:"";position:absolute;right:max(0px,calc((100vw - var(--max)) / 2));top:40px;width:min(46vw,540px);height:420px;pointer-events:none;
  background-image:radial-gradient(var(--dot) 1.1px,transparent 1.6px);background-size:16px 16px;
  -webkit-mask-image:radial-gradient(closest-side,#000 20%,transparent);mask-image:radial-gradient(closest-side,#000 20%,transparent)}
.page > .wrap,.post > .wrap{position:relative}

/* numbered contents */
.toc ol{counter-reset:toc}
.toc li{counter-increment:toc}
.toc a::before{content:counter(toc,decimal-leading-zero);font-family:var(--mono);font-size:11px;color:var(--faint);margin-right:10px;letter-spacing:.04em}
.toc a.on::before{color:var(--accent)}