:root{
  --bg:#151419;
  --bg-2:#1b1a21;
  --ink:#ebe7e3;
  --ink-2:#a8a4ad;
  --line:#2a2830;
  --line-2:#4a4655;
  --accent:#b9b0e0;
  --accent-2:#8e86b8;
  --display:"Geist",system-ui,-apple-system,"Segoe UI",sans-serif;
  --body:"Geist",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --max:1120px;
}
*{box-sizing:border-box}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
.lenis.lenis-stopped{overflow:hidden}
html,body{overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}

/* header */
.top{position:fixed;top:0;left:0;right:0;z-index:10;color:var(--ink);background:color-mix(in srgb,var(--bg) 72%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid color-mix(in srgb,var(--line) 55%,transparent);transition:background .7s ease}
.top-inner{max-width:var(--max);margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.wordmark{font-family:var(--display);font-weight:700;font-size:20px;letter-spacing:-.01em}
nav{display:flex;align-items:center;gap:26px;font-size:14px;color:var(--ink-2)}
nav a:hover{color:var(--ink)}
.btn{display:inline-block;padding:9px 14px;border:1px solid var(--line);border-radius:999px;color:var(--ink);font-size:14px;transition:border-color .15s,background .15s,color .15s}
.btn:hover{border-color:var(--accent-2)}
.btn.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn.primary:hover{background:#fff;border-color:#fff}
.link{font-size:15px;color:var(--ink-2)}
.link:hover{color:var(--ink)}

/* layout */
main{max-width:var(--max);margin:0 auto;padding:0 24px}
.label{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);margin:0 0 18px}

/* ---------- the travel: one pinned stage, the viewport moves across a plane ---------- */
.loop-section{--band:90vh;--steps:9;position:relative;height:calc(100vh + var(--steps) * var(--band));background:var(--bg);color:var(--ink);transition:background .7s ease,color .7s ease}
.loop-section::before{content:"";position:absolute;top:0;bottom:0;left:calc(50% - 50vw);width:100vw;background:inherit;z-index:-1}
.loop-pin{position:sticky;top:0;height:100vh;overflow:hidden;margin-left:calc(50% - 50vw);width:100vw}
/* keep text aligned to the content column even though the stage is full-bleed */
.loop-pin{--col:calc(50% - min(50vw, var(--max) / 2) + 24px)}

.wave{position:absolute;inset:0;pointer-events:none;z-index:0;opacity:0;transition:opacity .9s ease;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 9%,#000 97%,transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 9%,#000 97%,transparent 100%)}
.loop-section.is-start .wave{opacity:1}
.wave canvas{position:absolute;inset:0;width:100%;height:100%}
#wave-glow{filter:blur(26px)}
#wave-strands{filter:blur(.5px)}

/* the plane */
.world{position:absolute;left:0;top:0;width:2800px;height:2800px;transform-origin:0 0;will-change:transform;z-index:1}
#loop-svg{position:absolute;left:0;top:0;width:2800px;height:2800px;overflow:visible}
.place{position:absolute;width:440px;transform:translateY(-50%);opacity:0;visibility:hidden;pointer-events:none}
.place.is-seen{opacity:0}
.place.place-up{transform:translateY(-100%)}
.place.place-down{transform:none}
.place{--gsap-safe:1}
.loop-section.is-wide .place{opacity:0}
.place.is-on{pointer-events:auto}
.place h3,.ov h3{font-family:var(--display);font-weight:600;font-size:32px;letter-spacing:-.02em;line-height:1.15;margin:0 0 14px;color:var(--ink);text-wrap:balance}
.place p,.ov p{font-size:16.5px;line-height:1.55;color:var(--ink-2);margin:0 0 16px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-2);margin:0 0 14px!important}
.pain{margin-top:18px!important;padding-left:16px;border-left:1px solid var(--line);font-size:15px!important;color:var(--ink-2)}
.pain span{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);margin-bottom:6px;opacity:.8}
.step-close .pain{border-left-color:var(--accent-2)}

/* the start and the return live at the centre of the plane */
.place-hero{width:760px;left:1020px;top:1330px;transform:none;text-align:center}
.place-hero .eyebrow{margin-bottom:18px!important}
.place-hero h1{font-family:var(--display);font-weight:600;font-size:72px;line-height:1.02;letter-spacing:-.035em;margin:0 auto;color:var(--ink);max-width:20ch;text-wrap:balance}
.place-hero .lede{font-size:20px;line-height:1.5;color:var(--ink-2);margin:26px auto 0;max-width:60ch}
.place-hero .actions{display:flex;align-items:center;justify-content:center;gap:22px;margin-top:34px;flex-wrap:wrap}

/* text for the pulled-back views floats over the plane */
.overlay{position:absolute;inset:0;z-index:2;pointer-events:none}
.ov{position:absolute;top:0;bottom:0;left:60%;width:min(34vw,440px);display:flex;flex-direction:column;justify-content:center;padding:0 24px 0 0;opacity:0;visibility:hidden;pointer-events:none}
.ov.is-active{pointer-events:auto}
.ov p{max-width:50ch}
.ov .strong{color:var(--ink)}
.ov .actions{display:flex;align-items:center;gap:22px;margin-top:8px;flex-wrap:wrap}
.ov[data-plane]{display:none}
/* the Why is a page of text on its own */
.ov.ov-center{left:50%;width:min(88vw,720px);margin-left:max(-44vw,-360px);padding:0}
.ov.ov-center p{font-size:clamp(17px,1.35vw,20px);line-height:1.55;max-width:none;color:var(--ink);margin:0 0 20px}
.ov.ov-center p.muted{color:var(--ink-2)}
.ov.ov-center .eyebrow{margin-bottom:22px!important}


.loop-progress{position:absolute;right:28px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;align-items:flex-end;gap:9px;list-style:none;margin:0;padding:0;z-index:3}
.loop-progress li{position:relative;width:14px;height:1.5px;background:var(--line-2);opacity:.6;transition:width .3s,background .3s,opacity .3s}
.loop-progress li.is-active{width:28px;background:var(--accent);opacity:1}
.loop-progress li.is-active::after{content:attr(data-name);position:absolute;right:38px;top:50%;transform:translateY(-50%);white-space:nowrap;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);animation:railLabel 2.6s ease forwards}
@keyframes railLabel{0%,55%{opacity:1}100%{opacity:0}}

/* diagram, in plane units. One ink, no ornament. */
#loop-svg .track{fill:none;stroke:var(--ink);stroke-opacity:.22;stroke-width:1.5;transition:stroke-width .5s}
#loop-svg.wide .track{stroke-width:2}
#loop-svg .arc{fill:none;stroke:var(--ink);stroke-opacity:.9;stroke-width:2;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1;opacity:0;transition:stroke-dashoffset 1.2s cubic-bezier(.4,0,.2,1),opacity .4s}
#loop-svg .arc.lane{stroke-width:1.5}
#loop-svg .arc.on{stroke-dashoffset:0;opacity:1}
#loop-svg.wide .arc{stroke-width:2.5}
#loop-svg .node circle{fill:var(--bg);stroke:var(--ink);stroke-opacity:.45;stroke-width:1.5;transition:fill .5s,stroke-opacity .5s,r .5s}
#loop-svg .node.on circle{fill:var(--ink);stroke-opacity:1}
#loop-svg .node.is-active circle.station{r:15px}
#loop-svg.wide .node circle.station{r:14px}
#loop-svg.wide .node circle.small{r:9px}
#loop-svg .lbl{font-family:var(--body);font-size:44px;fill:var(--ink-2);opacity:0;transition:opacity .5s,fill .5s}
#loop-svg.wide .lbl{opacity:.6}
#loop-svg.wide .lbl.on{opacity:1}
#loop-svg .lbl.is-active{fill:var(--ink)}
#loop-svg .ver{font-family:var(--display);font-weight:500;font-size:120px;letter-spacing:-.03em;fill:var(--ink);text-anchor:middle;opacity:0;transition:opacity .6s}
#loop-svg.wide .ver{opacity:1}
#loop-svg .pulse{fill:var(--ink);opacity:0;transition:opacity .6s}
#loop-svg.closed .pulse{opacity:1}
.loop-section.is-start #loop-svg :is(.track,.node,.arc,.lbl,.ver,.pulse),.loop-section.is-text #loop-svg :is(.track,.node,.arc,.lbl,.ver,.pulse){opacity:0}

/* serif display faces want regular weight and a little more size */
html[data-serif] .place-hero h1,html[data-serif] h2,html[data-serif] footer .big{font-weight:400;letter-spacing:-.015em}
html[data-serif] .place-hero h1{font-size:78px}
html[data-serif] .wordmark{font-family:var(--body);font-weight:600}
html[data-serif] .place h3,html[data-serif] .ov h3{font-weight:400;letter-spacing:-.01em;font-size:36px}
html[data-serif] #loop-svg .ver{font-weight:400}

/* ordinary sections */
.block{padding:88px 0;border-bottom:1px solid var(--line)}
h2{font-family:var(--display);font-weight:600;font-size:clamp(28px,3.6vw,44px);line-height:1.12;letter-spacing:-.025em;margin:0 0 22px;max-width:22ch;text-wrap:balance}
.block p{max-width:62ch;color:var(--ink-2);margin:0 0 16px}
.status{display:flex;align-items:flex-start;gap:12px;margin-top:28px!important;padding:16px 18px;border:1px solid var(--line);border-radius:10px;background:var(--bg-2);color:var(--ink)!important;font-size:15.5px}
.dot{flex:0 0 8px;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:7px;box-shadow:0 0 0 4px rgba(185,176,224,.14)}

/* footer */
footer{max-width:var(--max);margin:0 auto;padding:110px 24px 48px}
footer .big{font-family:var(--display);font-weight:600;font-size:clamp(34px,5.6vw,72px);line-height:1.04;letter-spacing:-.03em;margin:0 0 34px;max-width:16ch;text-wrap:balance}
.foot-row{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot-links{display:flex;gap:22px;font-size:14px;color:var(--ink-2)}
.foot-links a:hover{color:var(--ink)}
.copy{margin:60px 0 0;font-family:var(--mono);font-size:12px;color:var(--ink-2);letter-spacing:.04em}

@media (prefers-reduced-motion:reduce){
  .step,.place,.ov,.loop-progress li,.top,#loop-svg .arc,#loop-svg .node,#loop-svg .node circle,#loop-svg .lbl,#loop-svg .track,#loop-svg .ver,#loop-svg .pulse,.wave,.loop-section{transition:none}
  #loop-svg .pulse{display:none}
}

/* small screens */
@media (max-width:900px){
  .loop-section{--band:85vh}
  .place{display:none}
  .overlay{left:0;width:100%;top:42%;bottom:0}
  .loop-section.is-dark .overlay{background:linear-gradient(180deg,transparent 0,var(--bg) 56px)}
  .loop-section.is-dark .ov{padding-top:40px}
  .loop-section.is-text .overlay{top:12%}
  .loop-section.is-wide .overlay{top:52%}
  .ov{left:0;width:100%;justify-content:flex-start;padding:0 24px}
  .ov.ov-center{left:0;width:100%;margin-left:0;padding:0 24px}
  .ov.ov-center p{font-size:15px;line-height:1.5;margin-bottom:12px}
  .ov[data-plane]{display:flex}
  .ov h1{font-family:var(--display);font-weight:600;font-size:clamp(28px,8vw,36px);line-height:1.06;letter-spacing:-.03em;margin:0 0 12px;color:var(--ink);text-wrap:balance}
  .ov .label{margin-bottom:10px}
  .ov .lede{font-size:16px}
  .ov .actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:16px}
  .ov h3{font-size:24px}
  .ov p{font-size:15.5px}
  .pain{font-size:14px!important}
  .loop-progress{display:none}
}
@media (max-width:820px){
  nav a:not(.btn){display:none}
  .block{padding:64px 0}
  footer{padding-top:72px}
}