/* Kirill Shmelev · one-page site. Tokens from style/card_v3.html (approved 2026-09-15). */
:root{
  --ground:#E4DFCB; --ink:#535352; --ink-deep:#2F2F2E; --rule:#BAB5A1;
  --pad:clamp(20px,3.4vw,48px); --frame:min(1180px,100%);
  --sans:"General Sans",system-ui,sans-serif; --serif:"Newsreader",Georgia,serif; --mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --ease:cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
html,body{margin:0}
body{background:var(--ground);color:var(--ink);font:500 17px/1.55 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video{max-width:100%}
a{color:inherit}
.paper{position:fixed;inset:-8px;pointer-events:none;z-index:0;background:url(../style/paper_crease.webp) 0 0/2048px 1024px repeat;mix-blend-mode:multiply;opacity:.85;animation:crease .5s steps(1) infinite}
.paper::after{content:"";position:absolute;inset:0;background:url(../style/paper_grain_0.webp) 0 0/384px repeat;mix-blend-mode:multiply;opacity:.9;animation:grain .5s steps(1) infinite}
@keyframes crease{0%{transform:translate(0,0)}25%{transform:translate(1px,0)}50%{transform:translate(1px,1px)}75%{transform:translate(0,1px)}}
@keyframes grain{0%{background-image:url(../style/paper_grain_0.webp);background-position:0 0}33%{background-image:url(../style/paper_grain_1.webp);background-position:120px 40px}66%{background-image:url(../style/paper_grain_2.webp);background-position:60px 200px}}
@media (prefers-reduced-motion:reduce){.paper,.paper::after{animation:none}}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:18px var(--pad);background:transparent}
.logo{font:700 19px/1 var(--sans);letter-spacing:-.02em;text-transform:uppercase;color:var(--ink-deep);text-decoration:none}
.logo small{display:block;margin-top:6px;font:500 12px/1.2 var(--mono);letter-spacing:.04em;text-transform:none;color:var(--ink)}
.links{display:flex;gap:28px;padding:11px 16px;border:2px solid var(--rule);background:var(--ground);font:500 13px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase}
.links a{text-decoration:none}.links a:hover{color:var(--ink-deep)}

/* buttons */
.btn,.btn-line{display:inline-flex;align-items:center;gap:10px;font:600 14px/1 var(--sans);letter-spacing:.03em;text-transform:uppercase;padding:15px 20px;border:2px solid var(--ink-deep);text-decoration:none;cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.btn{background:var(--ink-deep);color:var(--ground)}
.btn:hover{background:var(--ink);border-color:var(--ink)}
.btn-line{background:transparent;color:var(--ink-deep)}
.btn-line:hover{background:var(--ink-deep);color:var(--ground)}
.btn:active,.btn-line:active{transform:translateY(1px)}
.link{display:inline-flex;align-items:center;gap:6px;font:500 15px/1 var(--mono);color:var(--ink-deep);text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1.5px}
.link:hover{text-decoration-thickness:3px}
:focus-visible{outline:2px solid var(--ink-deep);outline-offset:4px}
.ic{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}

main{position:relative}
section{position:relative}

/* hero (engine in hero/hero.js) */
.hero{position:relative;user-select:none;-webkit-user-select:none;height:calc(100svh - 80px);min-height:560px;overflow:hidden;touch-action:pan-y}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.hero .stage{position:absolute;inset:0;pointer-events:none}
.sys{position:absolute;left:0;top:0;margin:0;will-change:transform;display:flex;flex-direction:column;align-items:center}
.sys img{display:block;mix-blend-mode:multiply}
.sys figcaption{margin-top:6px;padding:3px 6px;font:500 11px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-deep);white-space:nowrap;background:var(--ground);border:1.5px solid var(--rule)}
.statement{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);margin:0;text-align:center;max-width:12ch;font:700 clamp(40px,6vw,100px)/.9 var(--sans);letter-spacing:-.035em;text-transform:uppercase;color:var(--ink-deep)}
.hero .foot{position:absolute;left:var(--pad);right:var(--pad);bottom:18px;display:flex;justify-content:space-between;font:500 12px/1 var(--mono);letter-spacing:.04em;pointer-events:none}

/* section head */
.label{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:14px var(--pad);font:500 13px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.head{padding:clamp(28px,4vw,48px) var(--pad) clamp(24px,3vw,40px);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,34ch);gap:24px 48px;align-items:end}
.head h2{margin:0;font:700 clamp(34px,4.6vw,72px)/.95 var(--sans);letter-spacing:-.03em;text-transform:uppercase;color:var(--ink-deep);max-width:16ch}
.head p{margin:0;font:italic 400 clamp(20px,1.9vw,28px)/1.25 var(--serif)}
.block{padding-bottom:clamp(64px,8vw,120px)}
/* one story = one screen, like Synapser */


/* story frame with phrases flying in as a ladder */
.story{position:relative;margin:0 var(--pad)}
.story > .art{width:min(58%, calc((100svh - 300px) * 1.79));margin:0 auto}
.art{position:relative;width:100%;aspect-ratio:1376/768}
.art > img,.art > canvas,.art > video{position:absolute;inset:0;width:100%;height:100%;display:block}
.art img.mul,.art canvas.mul,.art video.mul{mix-blend-mode:multiply}
.ladder{list-style:none;margin:0;padding:0}
.ladder li{position:absolute;width:19.5%;padding:12px 14px 14px;background:rgba(228,223,203,.92);border-top:2px solid var(--ink-deep);
  font:600 clamp(18px,1.7vw,27px)/1.2 var(--sans);letter-spacing:-.015em;color:var(--ink-deep);
  opacity:0;transition:opacity .6s var(--ease),transform .7s var(--ease)}
.ladder li b{display:block;margin-bottom:6px;font:500 12px/1 var(--mono);letter-spacing:.08em;color:var(--ink)}
.ladder li.l{transform:translateX(-40px)}
.ladder li.r{transform:translateX(40px)}
.ladder li.in{opacity:1;transform:none}
@media (max-width:1100px){
  .story > .art{width:100%}
  .ladder{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin-top:18px}
  .ladder li{position:static;width:auto}
}
@media (max-width:860px){ .head{grid-template-columns:1fr} }
@media (prefers-reduced-motion:reduce){ .ladder li{opacity:1;transform:none;transition:none} }

/* result states */
.result .board{position:absolute;opacity:0}
.result .fade{transition:opacity .9s var(--ease)}
.result .lit{animation:flick 1.1s steps(1,end) 1 both, hum 4s ease-in-out 1.1s infinite}
@keyframes flick{0%{opacity:0}8%{opacity:.9}14%{opacity:.15}22%{opacity:1}30%{opacity:.35}38%{opacity:1}100%{opacity:1}}
@keyframes hum{0%,100%{opacity:1}47%{opacity:1}50%{opacity:.82}53%{opacity:1}}

/* about */
#about{padding-top:clamp(48px,6vw,96px)}
.about{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:clamp(28px,4vw,64px);padding:0 var(--pad);align-items:stretch}
.about figure{margin:0;position:relative;z-index:1;min-height:420px}
.about figure img{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:cover;object-position:44% 20%}
.about .bio p{margin:0 0 16px;max-width:60ch}
.about .bio p.lead{font:italic 400 clamp(22px,2.2vw,32px)/1.25 var(--serif);color:var(--ink-deep)}
.nums{container-type:inline-size;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:32px 0;border-top:2px solid var(--rule);border-bottom:2px solid var(--rule)}
.nums div{padding:18px 16px 18px 0}
.nums div+div{padding-left:16px;border-left:2px solid var(--rule)}
.nums strong{display:block;font:700 clamp(28px,4.6cqi,58px)/1 var(--sans);white-space:nowrap;letter-spacing:-.04em;color:var(--ink-deep)}
.nums span{display:block;margin-top:8px;font:600 14px/1.3 var(--sans);text-transform:uppercase;color:var(--ink-deep)}
.nums em{display:block;margin-top:4px;font:500 12px/1.3 var(--mono);font-style:normal}
.worked{margin:0 0 28px}
.wlabel{display:block;margin-bottom:14px;font:500 12px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.logos{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:center;gap:22px 34px}
.logos img{display:block;width:auto;max-width:150px;mix-blend-mode:multiply;opacity:.9}
.acts{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
@media (max-width:860px){ .about{grid-template-columns:1fr} .about figure{min-height:0} .about figure img{position:static;height:auto} .nums{grid-template-columns:1fr} .nums div+div{border-left:0;padding-left:0;border-top:2px solid var(--rule)} }

/* services + faq rows */
.rows{border-top:2px solid var(--rule)}
.rows details{border-bottom:2px solid var(--rule)}
.rows summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:66px;padding:14px var(--pad);cursor:pointer;color:var(--ink-deep);transition:background .25s var(--ease)}
.rows summary::-webkit-details-marker{display:none}
.rows summary:hover{background:rgba(83,83,82,.07)}
.rows .body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .45s var(--ease),opacity .3s var(--ease);opacity:0}
.rows .body > *{overflow:hidden}
.rows details[open] .body,.rows details.hover .body{grid-template-rows:1fr;opacity:1}
.rows .name{display:flex;align-items:center;gap:18px;font:700 clamp(18px,1.8vw,24px)/1.3 var(--sans);letter-spacing:-.02em;text-transform:uppercase}
.rows .idx{display:flex;align-items:center;gap:12px;font:500 15px/1 var(--mono)}
.rows .idx .ic{transition:transform .3s var(--ease)}
.rows details[open] .idx .ic{transform:rotate(45deg)}
.rows .inner{padding:0 var(--pad) 26px calc(var(--pad) + 36px);max-width:calc(72ch + 2*var(--pad))}
.rows .body p{margin:0 0 12px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 4px;padding:0;list-style:none}
.chips li{font:500 12px/1 var(--mono);letter-spacing:.04em;padding:7px 9px;border:1.5px solid var(--rule);color:var(--ink-deep)}
.faq .name{font:600 clamp(17px,1.6vw,21px)/1.35 var(--sans);text-transform:none;letter-spacing:-.01em}

/* contact */
.contact{padding:clamp(40px,6vw,96px) var(--pad);display:grid;gap:28px}
.contact h2{margin:0;font:700 clamp(40px,6.4vw,104px)/.92 var(--sans);letter-spacing:-.035em;text-transform:uppercase;color:var(--ink-deep);max-width:14ch}
.contact p{margin:0;max-width:52ch;font:italic 400 clamp(20px,1.9vw,28px)/1.3 var(--serif)}
footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:18px var(--pad) 28px;border-top:2px solid var(--rule);font:500 12px/1.4 var(--mono);letter-spacing:.06em;text-transform:uppercase}

@media (max-width:760px){ .links{display:none} .nav .btn{padding:12px 14px} .hero .foot span:last-child{display:none} }

/* floating mail button, like Synapser's corner action */
.float-mail{position:fixed;right:18px;bottom:18px;z-index:30;display:inline-flex;align-items:center;gap:8px;
  padding:13px 16px;border:2px solid var(--ink-deep);background:var(--ground);color:var(--ink-deep);text-decoration:none;
  font:600 13px/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;transition:background .2s var(--ease),color .2s var(--ease)}
.float-mail:hover{background:var(--ink-deep);color:var(--ground)}
footer a{text-decoration:none}
footer a:hover{color:var(--ink-deep)}

/* scrollbar in the site's own colours */
html{scrollbar-width:thin;scrollbar-color:var(--rule) transparent}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--rule);border:3px solid var(--ground)}
::-webkit-scrollbar-thumb:hover{background:var(--ink)}

/* services: Synapser row. 64px row; on hover it grows, fills with ink, text turns paper, details fade in */
.svcs{border-top:2px solid var(--rule)}
.svc{position:relative;height:4rem;padding:0 var(--pad);border-bottom:2px solid var(--rule);color:var(--ink-deep);cursor:pointer;overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-start;transition:all .3s cubic-bezier(.4,0,.2,1)}
.svc-top{display:flex;justify-content:space-between;align-items:center;height:4rem;flex:none}
.svc .name{display:flex;align-items:center;gap:18px;font:700 clamp(18px,1.8vw,24px)/1 var(--sans);letter-spacing:-.02em;text-transform:uppercase}
.svc-idx{font:700 clamp(15px,1.5vw,24px)/1 var(--mono)}
.svc-more{display:none;font:700 clamp(14px,1.4vw,22px)/1 var(--mono);text-transform:uppercase;color:var(--ground);text-decoration:none}
.svc-open{display:flex;gap:clamp(24px,5vw,96px);align-items:flex-start;padding:6px 0 24px;opacity:0;transition:opacity 75ms ease-in-out 100ms}
.svc-num b{display:block;font:400 clamp(40px,4.6vw,72px)/1 var(--mono);letter-spacing:.1em}
.svc-num span{display:block;margin-top:6px;font:400 clamp(16px,1.6vw,26px)/1 var(--mono);text-transform:uppercase;letter-spacing:.1em}
.svc-text{flex:1;max-width:64rem}
.svc-head{margin-bottom:8px;font:700 clamp(16px,1.5vw,24px)/1.35 var(--sans);text-transform:uppercase;letter-spacing:-.01em}
.svc-text p{margin:0 0 14px;font:500 clamp(14px,1.1vw,18px)/1.6 var(--sans)}
.svc-tags{display:flex;flex-wrap:wrap;gap:6px 0;font:500 clamp(12px,.95vw,15px)/1.4 var(--mono);text-transform:uppercase;opacity:.8}
.svc-tags i{font-style:normal;opacity:.4;margin:0 14px}
.svc:hover,.svc:focus-within,.svc.is-open{height:15rem;background:var(--ink);color:var(--ground)}
.svc:hover .svc-idx,.svc:focus-within .svc-idx,.svc.is-open .svc-idx{display:none}
.svc:hover .svc-more,.svc:focus-within .svc-more,.svc.is-open .svc-more{display:block}
.svc:hover .svc-open,.svc:focus-within .svc-open,.svc.is-open .svc-open{opacity:1}
@media (max-width:760px){ .svc:hover,.svc:focus-within,.svc.is-open{height:auto;padding-bottom:10px} .svc-open{flex-direction:column;gap:12px} }

/* contact at Synapser scale */
.contact h2{font:700 clamp(44px,6.6vw,96px)/1 var(--serif)!important;letter-spacing:-.01em!important;text-transform:none!important;max-width:18ch}
.big-mail{display:inline-block;font:500 clamp(28px,3.9vw,56px)/1.1 var(--sans);color:var(--ink-deep);opacity:.9;text-decoration:none;transition:opacity .2s}
.big-mail:hover{opacity:1}
.contact-foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:clamp(40px,6vw,80px);font:500 12px/1.4 var(--mono);letter-spacing:.06em;text-transform:uppercase}

/* floating mail: plain bold label like Synapser, hides at the contact block */
.float-mail{border:0!important;background:none!important;padding:8px 4px!important;bottom:32px!important;right:28px!important;font:700 15px/1 var(--sans)!important;letter-spacing:.02em!important;color:var(--ink-deep)!important;transition:opacity .3s var(--ease),transform .3s var(--ease)!important}
.float-mail:hover{text-decoration:underline;text-underline-offset:5px}
.float-mail.gone{opacity:0;transform:translateY(8px);pointer-events:none}

/* FAQ: click accordion with a slide */
.rows details .body{display:grid;grid-template-rows:0fr;opacity:0;transition:grid-template-rows .35s var(--ease),opacity .25s var(--ease)}
.rows details[open] .body{grid-template-rows:1fr;opacity:1}

/* contact block in graphite, like Synapser's closing section */
#contact{background:var(--ink);color:var(--ground)}
#contact .contact h2,#contact .big-mail{color:var(--ground)}
#contact .btn-line{border-color:var(--ground);color:var(--ground)}
#contact .btn-line:hover{background:var(--ground);color:var(--ink)}
#contact .link{color:var(--ground)}
#contact .contact{padding-block:clamp(72px,9vw,140px)}

/* pinned scenes: the screen holds while scrolling drives its action, then lets go */
.pin{position:relative;height:var(--len,250vh)}
.pin > .sticky{position:sticky;top:0;height:100svh;overflow:hidden;display:flex;flex-direction:column;justify-content:center;padding-top:78px}
.pin > .sticky .head{padding-top:0;padding-bottom:clamp(14px,2vw,26px)}
.pin > .sticky-hero{padding-top:78px;justify-content:flex-start}
.sticky-hero .hero{height:calc(100svh - 78px)}
.hero .statement{transition:opacity .15s linear}
.hero .foot{justify-content:center}

/* headings slide up from under a mask */
.rv{overflow:hidden;display:block}
.rv > .rv-i{display:block;transform:translateY(105%);transition:transform .9s cubic-bezier(.2,.7,.1,1)}
.rv.on > .rv-i{transform:none}
@media (prefers-reduced-motion:reduce){ .rv > .rv-i{transform:none;transition:none} }

/* pricing, Synapser layout */
.pricing{padding:0 var(--pad)}
.pr-kicker{margin:0 0 10px;font:700 clamp(15px,1.3vw,22px)/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-deep)}
.pr-big{margin:0 0 22px;font:700 clamp(24px,2.6vw,40px)/1.15 var(--sans);letter-spacing:-.02em;color:var(--ink-deep);max-width:34ch}
.pr-lead .btn{gap:10px;transition:gap .3s var(--ease),background .2s var(--ease)}
.pr-lead .btn:hover{gap:20px}
.pr-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:clamp(28px,4vw,56px)}
.pr-card{display:flex;justify-content:space-between;gap:18px;padding:20px;background:rgba(83,83,82,.12);color:var(--ink-deep)}
.pr-card h3{margin:0 0 12px;font:700 clamp(16px,1.3vw,21px)/1.1 var(--sans);letter-spacing:.05em;text-transform:uppercase}
.pr-card p{margin:0;font:500 clamp(14px,1vw,16px)/1.55 var(--sans);max-width:42ch}
.pr-card.dark{background:var(--ink);color:var(--ground)}
.pr-btn{flex:none;align-self:flex-start;display:inline-flex;align-items:center;gap:8px;min-width:8.75rem;justify-content:center;padding:12px 18px;border:1.5px solid currentColor;color:inherit;text-decoration:none;font:700 14px/1 var(--sans);text-transform:uppercase;transition:background .2s var(--ease),color .2s var(--ease)}
.pr-btn:hover{background:var(--ink-deep);color:var(--ground)}
.pr-card.dark .pr-btn:hover{background:var(--ground);color:var(--ink)}
@media (max-width:1100px){ .pr-cards{grid-template-columns:1fr} }
@media (max-width:1100px){ .pin{height:auto} .pin > .sticky{position:relative;height:auto;padding-block:40px} .pin > .sticky-hero{padding-top:78px} .sticky-hero .hero{height:calc(100svh - 78px)} }

/* manifesto: lines pulled to the centre by scroll, then the drawing takes the screen */
.story.solo > .art{width:min(84%, calc((100svh - 290px) * 1.79))}
.manifesto{position:absolute;inset:0;z-index:2;margin:0;padding:0;list-style:none;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none}
.manifesto li{font:700 clamp(28px,3.5vw,64px)/1.08 var(--sans);letter-spacing:-.02em;text-transform:uppercase;color:var(--ink-deep);white-space:nowrap;text-align:center;opacity:0;will-change:transform,opacity}
@media (min-width:1101px){ .art.after{opacity:0;pointer-events:none} }
@media (max-width:1100px){ .manifesto{position:static;align-items:flex-start;margin:0 0 24px} .manifesto li{opacity:1;white-space:normal;text-align:left;font-size:clamp(22px,5.4vw,36px)} }

.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.mf-blocks{position:absolute;inset:0;z-index:3;pointer-events:none}
.mf-blocks i{position:absolute;left:0;top:0;width:0;height:0;background:var(--ink-deep);opacity:0;will-change:transform,width,height}
@media (max-width:1100px){ .mf-blocks{display:none} }

.ladder.scrub li{transition:none;will-change:transform,opacity}
@media (max-width:1100px){ .ladder li{left:auto!important;top:auto!important;transform:none!important} }

@media (min-width:1101px){ .head.late{opacity:0} }
@media (max-width:1400px) and (min-width:861px){ .nums{grid-template-columns:repeat(2,minmax(0,1fr))} .nums div:nth-child(3){padding-left:0;border-left:0} .nums div:nth-child(n+3){border-top:2px solid var(--rule)} }

/* narrow screens: solid header, problem lines before "So I start with a map", card buttons under the text */
@media (max-width:1100px){
  .nav{background:var(--ground)}
  #how .story{display:contents}
  #how .manifesto{order:1;margin:0 var(--pad) 28px}
  #how .head{order:2}
  #how .story > .art{order:3;width:auto;margin:0 var(--pad)}
  #how .ladder{order:4;margin:18px var(--pad) 0}
}
@media (max-width:760px){ .pr-card{flex-direction:column} .pr-btn{align-self:flex-start} }
@media (max-width:760px){ .big-mail{font-size:clamp(18px,6.2vw,30px);overflow-wrap:anywhere} }

/* numbers: size follows the width of the numbers row, so 45→60% never runs into the next cell */
@media (max-width:1400px) and (min-width:861px){ .nums strong{font-size:clamp(30px,8cqi,58px)} }
@media (max-width:860px){ .nums strong{font-size:clamp(34px,11cqi,58px)} }