@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:#FAFAFB; --ink:#0B0B0C; --graphite:#5E5E67; --faint:#9A9AA3;
  --rule:#E2E2E7; --well:#F1F1F4; --invert-bg:#0B0B0C; --invert-fg:#F4F4F6;
  --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;
  --logo:url("/logo.png");
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#0B0B0C; --ink:#F2F2F4; --graphite:#A3A3AC; --faint:#6A6A73;
    --rule:#26262B; --well:#151518; --invert-bg:#F2F2F4; --invert-fg:#0B0B0C;
  }
}
:root[data-theme="dark"]{
  --paper:#0B0B0C; --ink:#F2F2F4; --graphite:#A3A3AC; --faint:#6A6A73;
  --rule:#26262B; --well:#151518; --invert-bg:#F2F2F4; --invert-fg:#0B0B0C;
}
*{box-sizing:border-box}
html,body{margin:0}
[hidden]{display:none!important}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
.label{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--graphite)}
h1,h2,h3{text-wrap:balance;margin:0}
p{margin:0}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px}

/* 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) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--rule)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
nav .logo{height:46px}
nav ul{display:flex;gap:clamp(16px,3vw,32px);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(--ink)}
.btn{display:inline-flex;align-items:center;gap:10px;height:44px;padding-inline:20px;border-radius:2px;font-weight:500;font-size:15px;text-decoration:none;border:1.5px solid var(--ink);transition:background .15s,color .15s;font-family:var(--sans);cursor:pointer}
.btn.solid{background:var(--ink);color:var(--paper)}
.btn.solid:hover{background:transparent;color:var(--ink)}

/* hero */
.hero{padding-block:clamp(48px,7vw,96px) clamp(48px,6vw,80px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(32px,5vw,64px);align-items:center}
.hero h1{font-size:clamp(40px,4.4vw,64px);line-height:.96;letter-spacing:-.035em;font-weight:700}
.hero h1 .soft{color:var(--graphite)}
@media (min-width:1200px){.hero h1{font-size:min(3.9vw,60px)}.hero h1 .nw{white-space:nowrap}}
.hero .lede{margin-top:24px;font-size:clamp(18px,1.6vw,21px);line-height:1.5;color:var(--graphite);max-width:30em}
.hero h1{margin-top:18px}
.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(64px,9vw,112px)}
.head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:end;margin-bottom:44px}
.head h2{font-size:clamp(32px,4vw,52px);line-height:1.02;letter-spacing:-.03em;font-weight:700}
.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:3;transition:stroke .2s}
.ring.on .base{stroke:var(--rule)}
.ring .arc{fill:none;stroke:var(--ink);stroke-width:3;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:3;transition:stroke .2s}
.ring .appr{fill:var(--paper);stroke:var(--ink);stroke-width:2;stroke-dasharray:3 3;cursor:pointer}
.ring text{font-family:var(--mono);font-size:11px;fill:var(--graphite);letter-spacing:.06em}
.ring.on .arc,.ring.on .chev{stroke:var(--rule)}
.ring.on .dot{stroke:var(--rule)}
.ring .g.act .arc{stroke:var(--ink);stroke-width:5}
.ring .g.act .chev{stroke:var(--ink)}
.ring .g.act .dot{stroke:var(--ink);fill:var(--ink)}
.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,28px);font-weight:700;letter-spacing:-.02em;line-height:1.1;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(270px,64%);background:var(--paper);border:1.5px solid var(--ink);padding:14px 16px 16px;box-shadow:0 10px 30px color-mix(in srgb,var(--ink) 14%,transparent)}
.pop .k{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--graphite)}
.pop .t{font-weight:700;font-size:17px;margin-top:4px;letter-spacing:-.01em}
.pop p{margin-top:6px;font-size:14.5px;line-height:1.45}
.pop.skip p{color:var(--graphite)}
.pop button{all:unset;position:absolute;top:8px;right:10px;cursor:pointer;font-size:18px;line-height:1;color:var(--graphite)}
.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:14px;height:52px;padding:0 10px 0 22px;border:1.5px solid var(--ink);cursor:pointer;font-weight:500;font-size:16px;white-space:nowrap;transition:background .15s,color .15s}
.next svg{width:34px;height:34px;flex:none;transition:transform .2s}
.next:hover{background:var(--ink);color:var(--paper)}
.next:hover svg{transform:translateX(4px)}
.next:active svg{transform:translateX(8px)}
.next:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.flist{list-style:none;margin:0;padding:0;border-top:1.5px solid var(--ink)}
.flist li{display:grid;gap:4px;padding:20px 4px;border-bottom:1px solid var(--rule);cursor:pointer;transition:opacity .2s}
.flist b{font-size:26px;letter-spacing:-.02em;font-weight:700}
.flist li > span:last-child{color:var(--graphite)}
.flist.on li{opacity:.4}
.flist.on li.act{opacity:1}

/* integrity band */
.invert{background:var(--invert-bg);color:var(--invert-fg)}
.invert .label,.invert .head p{color:color-mix(in srgb,var(--invert-fg) 62%,transparent)}
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.trio div{padding-top:18px;border-top:1.5px solid var(--invert-fg);display:grid;gap:8px;align-content:start}
.trio h3{font-size:22px;letter-spacing:-.015em}
.trio p{color:color-mix(in srgb,var(--invert-fg) 66%,transparent);font-size:16px}

/* compare */
.compare h2{font-size:clamp(36px,5vw,64px);line-height:1;letter-spacing:-.035em;font-weight:700;margin-bottom:40px}
.compare h2 s{color:var(--faint);text-decoration-thickness:.08em;text-decoration-color:var(--ink)}
.cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1.5px solid var(--ink)}
.col{padding-block:24px 0;padding-right:40px}
.col + .col{border-left:1px solid var(--rule);padding-left:40px;padding-right:0}
.col ul{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:10px}
.col li{display:grid;grid-template-columns:18px 1fr;gap:10px;color:var(--graphite)}
.col li::before{content:"";width:9px;height:9px;margin-top:8px;border:1.5px solid var(--faint);border-radius:50%}
.col.us li{color:var(--ink)}
.col.us li::before{background:var(--ink);border-color:var(--ink)}

/* 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:1.5px solid var(--ink);padding-block:clamp(56px,8vw,96px)}
.closing .row{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:28px}
.closing h2{font-size:clamp(30px,3.6vw,46px);letter-spacing:-.03em;font-weight:700;line-height:1.05;max-width:15em}
.site-foot{border-top:1px solid var(--rule);padding-block:24px}
.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(56px,9vw,120px);min-height:62vh}
.page h1{font-size:clamp(40px,6vw,76px);line-height:1;letter-spacing:-.035em;font-weight:700;margin-top:18px;max-width:14em}
.page .lede{margin-top:22px;font-size:clamp(18px,1.6vw,21px);color:var(--graphite);max-width:32em}
.page .actions{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px}
.empty{margin-top:56px;border-top:1.5px solid var(--ink);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:900px){
  .hero-grid,.head,.loopgrid{grid-template-columns:1fr}
  .head{gap:14px;margin-bottom:32px}
  .trio,.cols{grid-template-columns:1fr}
  .col{padding-right:0;padding-bottom:24px}
  .col + .col{border-left:0;border-top:1px solid var(--rule);padding-left:0}
  .flow canvas{height:280px}
}
@media (max-width:520px){
  .ring-c{padding:24%}
  .ring-c .s,.ring .appr-l{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}