/* ============================================================
   ПЫЛЕСТОП — design system: Stykka reference (DESIGN (2).md)
   Monochrome editorial: #000 ink, #fff canvas, 1px hairlines,
   zero shadows, photography carries all warmth.
   ============================================================ */
:root{
  --ink:#000000;
  --canvas:#ffffff;
  --plate:#757575; /* мьютед-серый: ≥4.5:1 и на белом, и на чёрном */

  --font-inter:'Inter',ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:'Azeret Mono',ui-monospace,SFMono-Regular,Menlo,monospace;

  --text-caption:11px;   --track-caption:0.23px;
  --text-body-sm:14px;   --track-body-sm:0.29px;
  --text-body:16px;      --track-body:-0.37px;
  --text-subheading:22px;--track-subheading:-0.79px;
  --text-heading-sm:24px;--track-heading-sm:-0.89px;
  --text-heading:30px;   --track-heading:-1.2px;
  --text-display:46px;   --track-display:-1.93px;

  --gap:10px;
  --section-gap:80px;
  --page-max:1280px;

  --r-btn:8px;
  --r-card:16px;

  --ease-out:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}
body{
  font-family:var(--font-inter);
  font-size:var(--text-body);
  font-weight:400;
  line-height:1.5;
  letter-spacing:var(--track-body);
  color:var(--ink);
  background:var(--canvas);
  font-feature-settings:"tnum" on;
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}

img{display:block;max-width:100%;height:auto}
a{color:var(--ink);text-decoration:none}
ul{list-style:none}

.container{max-width:var(--page-max);margin:0 auto;padding:0 40px}

:focus-visible{outline:2px solid var(--ink);outline-offset:3px}

::selection{background:var(--ink);color:var(--canvas)}

/* ---------- type roles ---------- */
.label{
  font-size:var(--text-body-sm);
  font-weight:500;
  letter-spacing:var(--track-body-sm);
  text-transform:uppercase;
}
.display{
  font-size:var(--text-display);
  font-weight:400;
  line-height:1.05;
  letter-spacing:var(--track-display);
}
.heading{
  font-size:var(--text-heading);
  font-weight:400;
  line-height:1.1;
  letter-spacing:var(--track-heading);
}
.heading-sm{
  font-size:var(--text-heading-sm);
  font-weight:400;
  line-height:1.2;
  letter-spacing:var(--track-heading-sm);
}

/* ---------- outlined CTA — the only button on the site ---------- */
.btn{
  display:inline-block;
  font-family:var(--font-inter);
  font-size:var(--text-body);
  font-weight:500;
  letter-spacing:var(--track-body);
  color:var(--ink);
  background:transparent;
  border:1px solid var(--ink);
  border-radius:var(--r-btn);
  padding:10px 18px;
  cursor:pointer;
  transition:background .2s var(--ease-out),color .2s var(--ease-out);
}
.btn:hover{background:var(--ink);color:var(--canvas)}
.btn--inverse{color:var(--canvas);border-color:var(--canvas)}
.btn--inverse:hover{background:var(--canvas);color:var(--ink)}

/* ---------- nav ---------- */
.nav{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  transition:background .3s var(--ease-out),border-color .3s var(--ease-out);
  border-bottom:1px solid transparent;
}
.nav.is-solid{
  background:var(--canvas);
  border-bottom-color:var(--ink);
}
.nav__inner{
  max-width:var(--page-max);
  margin:0 auto;
  padding:20px 40px;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
}
.nav__links{display:flex;gap:20px}
.nav__links a{font-size:var(--text-body);font-weight:400}
.nav__links a:hover{text-decoration:underline;text-underline-offset:3px}
.nav__mark{
  font-size:var(--text-subheading);
  font-weight:500;
  letter-spacing:var(--track-subheading);
  text-align:center;
}
.nav__right{display:flex;justify-content:flex-end;align-items:center;gap:20px}
.nav__phone{font-size:var(--text-body);font-weight:400}
.nav__phone:hover{text-decoration:underline;text-underline-offset:3px}

/* nav over hero: white ink until scrolled */
.nav:not(.is-solid) a,
.nav:not(.is-solid) .nav__mark{color:var(--canvas)}
.nav:not(.is-solid) .btn{color:var(--canvas);border-color:var(--canvas)}
.nav:not(.is-solid) .btn:hover{background:var(--canvas);color:var(--ink)}

.nav__burger{
  display:none;
  width:44px;height:44px;
  background:none;border:0;cursor:pointer;
  position:relative;
  padding:0;
}
.nav__burger span{
  position:absolute;left:10px;right:10px;
  height:1px;background:var(--ink);
  transition:transform .25s var(--ease-out);
}
.nav__burger span:nth-child(1){top:19px}
.nav__burger span:nth-child(2){top:27px}
.nav.is-open .nav__burger span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.nav.is-open .nav__burger span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}
.nav:not(.is-solid):not(.is-open) .nav__burger span{background:var(--canvas)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  height:100vh;
  height:100dvh;
  min-height:560px;
  overflow:hidden;
}
.hero__img{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
}
.hero__scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(to bottom,rgba(0,0,0,.55) 0%,rgba(0,0,0,.18) 14%,rgba(0,0,0,0) 28%),
    linear-gradient(to top,rgba(0,0,0,.62) 0%,rgba(0,0,0,.24) 42%,rgba(0,0,0,0) 72%);
}
.hero__content{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:0 40px 50px;
  max-width:var(--page-max);
  margin:0 auto;
  color:var(--canvas);
}
.hero__content .label{color:var(--canvas);margin-bottom:20px}
.hero__content .display{color:var(--canvas);max-width:14ch;margin-bottom:30px}

/* hero load sequence */
.hero__content > *{
  opacity:0;
  transform:translateY(18px);
  animation:rise .7s var(--ease-out) forwards;
}
.hero__content > *:nth-child(1){animation-delay:.15s}
.hero__content > *:nth-child(2){animation-delay:.3s}
.hero__content > *:nth-child(3){animation-delay:.5s}
@keyframes rise{to{opacity:1;transform:none}}

/* ---------- monospace spec callout — once per page ---------- */
.speccallout{
  padding:var(--section-gap) 0;
}
.speccallout p{
  font-family:var(--font-mono);
  font-size:18px;
  line-height:1.0;
  letter-spacing:-0.18px;
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--ink);
  padding:24px 0;
  overflow-wrap:anywhere;
}

/* ---------- section header block ---------- */
.section{padding:var(--section-gap) 0 0}
.section-head{margin-bottom:40px}
.section-head .label{display:block;margin-bottom:20px}
.section-head .heading{max-width:24ch}
.section-head p{margin-top:20px;max-width:60ch}

/* ---------- feature grid ---------- */
.features{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:40px 20px;
}
.feature img{aspect-ratio:4/3;object-fit:cover;width:100%}
.feature h3{
  font-size:var(--text-body-sm);
  font-weight:500;
  letter-spacing:var(--track-body-sm);
  text-transform:uppercase;
  margin:10px 0;
}
.feature p{font-size:var(--text-body);line-height:1.5;max-width:32ch}

/* ---------- steps (signature: telescoping hairline) ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{position:relative;padding-left:25px}
.step__pole{
  position:absolute;
  left:0;top:0;bottom:0;
  width:1px;
  background:var(--ink);
  transform-origin:top;
  transform:scaleY(0);
  transition:transform 1.1s var(--ease-out);
}
.step.is-visible .step__pole{transform:scaleY(1)}
.step:nth-child(2) .step__pole{transition-delay:.2s}
.step:nth-child(3) .step__pole{transition-delay:.4s}
.step img{aspect-ratio:3/4;object-fit:cover;width:100%}
.step .label{display:block;margin:15px 0 10px}
.step p{max-width:34ch}

/* ---------- full-bleed image band ---------- */
.band{
  margin-top:var(--section-gap);
  position:relative;
  height:72vh;min-height:420px;
  overflow:hidden;
}
.band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.band__caption{
  position:absolute;left:0;bottom:0;right:0;
  padding:0 40px 40px;
  max-width:var(--page-max);margin:0 auto;
  color:var(--canvas);
}
.band__scrim{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(0,0,0,.62) 0%,rgba(0,0,0,.28) 40%,rgba(0,0,0,0) 68%);
}
.band__caption .label{color:var(--canvas);display:block;margin-bottom:15px}
.band__caption .heading{color:var(--canvas);max-width:20ch}

/* ---------- kits ---------- */
.kits{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.kit{
  border:1px solid var(--ink);
  border-radius:var(--r-card);
  padding:30px 25px;
  display:flex;flex-direction:column;gap:20px;
}
.kit__name{
  font-size:var(--text-body-sm);
  font-weight:500;letter-spacing:var(--track-body-sm);
  text-transform:uppercase;
}
.kit__price{
  font-size:var(--text-heading);
  font-weight:400;letter-spacing:var(--track-heading);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.kit ul{display:flex;flex-direction:column;gap:8px;flex:1}
.kit li{
  font-size:var(--text-body);line-height:1.5;
  padding-top:8px;
  border-top:1px solid var(--ink);
}
.kit .btn{align-self:flex-start}

/* ---------- catalog products ---------- */
.products{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.product{
  border:1px solid var(--ink);
  border-radius:var(--r-card);
  padding:25px;
  display:flex;flex-direction:column;gap:18px;
}
.product__gallery{
  display:flex;overflow-x:auto;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  border:1px solid var(--ink);
  cursor:pointer;
}
.product__gallery::-webkit-scrollbar{display:none}
.product__gallery img{
  flex:0 0 100%;width:100%;
  aspect-ratio:1/1;object-fit:contain;
  background:var(--canvas);padding:20px;
  scroll-snap-align:start;
}
.product__count{
  font-family:var(--font-mono);font-size:13px;
  color:var(--plate);font-variant-numeric:tabular-nums;
  margin-top:-6px;
}
.product__name{
  font-size:var(--text-body-sm);
  font-weight:500;letter-spacing:var(--track-body-sm);
  text-transform:uppercase;
}
.product__price{
  font-size:var(--text-heading-sm);
  font-weight:400;line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.product ul{display:flex;flex-direction:column;gap:8px;flex:1}
.product li{
  font-size:var(--text-body);line-height:1.5;
  padding-top:8px;
  border-top:1px solid var(--ink);
}
.product .btn{align-self:flex-start}

/* ---------- applications — editorial hairline rows ---------- */
.uses{border-top:1px solid var(--ink)}
.use{
  display:grid;
  grid-template-columns:200px 1fr auto;
  gap:20px;align-items:baseline;
  padding:24px 0;
  border-bottom:1px solid var(--ink);
}
.use__tag{
  font-size:var(--text-body-sm);font-weight:500;
  letter-spacing:var(--track-body-sm);text-transform:uppercase;
}
.use__text{max-width:56ch}
.use__num{
  font-variant-numeric:tabular-nums;
  font-size:var(--text-body-sm);
  letter-spacing:var(--track-body-sm);
  color:var(--plate);
}

/* ---------- black band quote ---------- */
.ink-band{
  margin-top:var(--section-gap);
  background:var(--ink);
  color:var(--canvas);
  padding:var(--section-gap) 0;
}
.ink-band .label{color:var(--canvas);display:block;margin-bottom:30px}
.ink-band .display{color:var(--canvas);max-width:22ch}
.ink-band__row{
  margin-top:50px;
  display:flex;gap:50px;flex-wrap:wrap;
}
.ink-band__stat .heading{color:var(--canvas)}
.ink-band__stat span{
  display:block;margin-top:8px;
  font-size:var(--text-body-sm);letter-spacing:var(--track-body-sm);
  color:var(--plate);
}

/* ---------- contact ---------- */
.contact{padding:var(--section-gap) 0}
.contact__grid{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;
  align-items:start;
}
.contact__list{display:flex;flex-direction:column}
.contact__list a{
  display:flex;justify-content:space-between;align-items:baseline;
  padding:20px 0;
  border-bottom:1px solid var(--ink);
  font-size:var(--text-subheading);
  letter-spacing:var(--track-subheading);
}
.contact__list a:first-child{border-top:1px solid var(--ink)}
.contact__list a span{
  font-size:var(--text-body-sm);
  letter-spacing:var(--track-body-sm);
  font-weight:500;text-transform:uppercase;
}
.contact__list a:hover{background:var(--ink);color:var(--canvas);padding-left:12px;padding-right:12px}
.contact__list a{transition:background .2s var(--ease-out),color .2s var(--ease-out),padding .2s var(--ease-out)}

/* ---------- footer ---------- */
.footer{
  background:var(--ink);
  color:var(--canvas);
  padding:50px 0;
}
.footer a{color:var(--canvas)}
.footer__inner{
  max-width:var(--page-max);margin:0 auto;padding:0 40px;
  display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;gap:20px;
}
.footer__mark{
  font-size:var(--text-body);font-weight:500;
  letter-spacing:var(--track-body);
}
.footer__links{display:flex;gap:20px;justify-content:center}
.footer__links a{font-size:var(--text-body-sm);letter-spacing:var(--track-body-sm)}
.footer__links a:hover{text-decoration:underline;text-underline-offset:3px}
.footer__copy{
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:12px;line-height:1.2;
  text-align:right;
  color:var(--plate);
}

/* ---------- scroll reveal ---------- */
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .6s var(--ease-out),transform .6s var(--ease-out);
}
.reveal.is-visible{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.1s}
.reveal[data-delay="2"]{transition-delay:.2s}
.reveal[data-delay="3"]{transition-delay:.3s}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero__content > *{animation:none;opacity:1;transform:none}
  .reveal{opacity:1;transform:none;transition:none}
  .step__pole{transform:scaleY(1);transition:none}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .features{grid-template-columns:repeat(2,1fr)}
  .kits{grid-template-columns:1fr;max-width:560px}
}
@media (max-width:820px){
  :root{--text-display:34px;--track-display:-1.4px;--text-heading:26px;--track-heading:-1px;--section-gap:60px}
  .container{padding:0 20px}
  .nav__inner{padding:15px 20px;grid-template-columns:auto 1fr auto}
  .nav__links{display:none}
  .nav__mark{text-align:left;order:-1}
  .nav__burger{display:block}
  .nav.is-open{background:var(--canvas);border-bottom-color:var(--ink)}
  .nav.is-open a,.nav.is-open .nav__mark{color:var(--ink)}
  .nav.is-open .btn{color:var(--ink);border-color:var(--ink)}
  .nav.is-open .nav__burger span{background:var(--ink)}
  .nav.is-open .nav__links{
    display:flex;flex-direction:column;
    position:absolute;top:100%;left:0;right:0;
    background:var(--canvas);
    border-bottom:1px solid var(--ink);
    padding:0 20px 10px;
  }
  .nav.is-open .nav__links a{
    padding:14px 0;
    border-top:1px solid var(--ink);
    font-size:18px;
  }
  .nav.is-open .nav__links a:first-child{border-top:0}
  .hero__content{padding:0 20px 40px}
  .steps{grid-template-columns:1fr;gap:40px}
  .contact__grid{grid-template-columns:1fr}
  .products{grid-template-columns:1fr}
  .use{grid-template-columns:1fr;gap:8px}
  .use__num{display:none}
  .footer__inner{grid-template-columns:1fr;justify-items:start;padding:0 20px}
  .footer__copy{text-align:left}
  .band__caption{padding:0 20px 30px}
  .speccallout p{font-size:15px;line-height:1.5;letter-spacing:0}
}
@media (max-width:520px){
  .features{grid-template-columns:1fr}
  .nav__phone{display:none}
  .nav .btn{font-size:var(--text-body-sm);letter-spacing:var(--track-body-sm);padding:8px 14px}
}

/* ---------- rental page ---------- */
/* packaging / shop cards: portrait packshots shown целиком в рамке */
.feature--pack img{
  aspect-ratio:3/4;
  object-fit:contain;
  background:var(--canvas);
  border:1px solid var(--ink);
  padding:22px;
}

.features--3{grid-template-columns:repeat(3,1fr)}
.features--3 .feature p{max-width:36ch}
@media (max-width:1024px){.features--3{grid-template-columns:1fr;max-width:560px}}
.kit__unit{
  font-size:var(--text-body-sm);
  letter-spacing:var(--track-body-sm);
  color:var(--plate);
  margin-left:4px;
}

/* ---------- blog / articles ---------- */
.page-head{padding:160px 0 0}
.page-head .label{display:block;margin-bottom:20px}
.page-head .display{max-width:20ch}
.page-head p{margin-top:20px;max-width:60ch}

.posts{border-top:1px solid var(--ink);margin-top:50px}
.post-row{
  display:grid;
  grid-template-columns:300px 1fr auto;
  gap:40px;align-items:center;
  padding:30px 0;
  border-bottom:1px solid var(--ink);
  transition:background .2s var(--ease-out),color .2s var(--ease-out),padding .2s var(--ease-out);
}
.post-row:hover{background:var(--ink);color:var(--canvas);padding-left:15px;padding-right:15px}
.post-row img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.post-row time{
  display:block;
  margin-bottom:12px;
  font-family:var(--font-mono);
  font-size:13px;
  font-variant-numeric:tabular-nums;
  color:var(--plate);
}
.post-row h2{
  font-size:var(--text-heading-sm);
  font-weight:400;
  letter-spacing:var(--track-heading-sm);
  line-height:1.15;
  max-width:26ch;
}
.post-row p{margin-top:12px;font-size:var(--text-body);max-width:52ch}
.post-row .post-row__arrow{font-size:var(--text-heading-sm);padding-right:10px}

.article{max-width:760px;margin:0 auto;padding:160px 0 var(--section-gap)}
.article .label{display:block;margin-bottom:20px}
.article h1{margin-bottom:30px;max-width:22ch}
.article__meta{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--ink);
  padding:14px 0;
  font-family:var(--font-mono);
  font-size:13px;
  font-variant-numeric:tabular-nums;
  margin-bottom:0;
}
.article__meta::after{content:"ПЫЛЕСТОП · СТАТЬИ";color:var(--plate)}
.article__cover{width:100%;aspect-ratio:16/8;object-fit:cover;display:block;margin:0 0 50px}
.article__lead{
  font-size:var(--text-subheading);
  letter-spacing:var(--track-subheading);
  line-height:1.4;
  margin-bottom:40px;
}
.prose p{margin-bottom:20px}
.prose figure{margin:45px 0}
.prose figure img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;margin:0}
.prose figcaption{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--plate);
  padding-top:12px;
}
.prose h2{
  font-size:var(--text-heading-sm);
  font-weight:400;
  letter-spacing:var(--track-heading-sm);
  line-height:1.2;
  margin:50px 0 15px;
}
.prose ul,.prose ol{margin:0 0 20px;padding-left:22px}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:8px}
.prose a{text-decoration:underline;text-underline-offset:3px}
.prose img{margin:30px 0}
.prose .callout{
  font-family:var(--font-mono);
  font-size:15px;line-height:1.5;
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--ink);
  padding:20px 0;margin:30px 0;
}
.article__cta{
  margin-top:50px;
  border:1px solid var(--ink);
  border-radius:var(--r-card);
  padding:30px 25px;
  display:flex;flex-direction:column;gap:15px;align-items:flex-start;
}

@media (max-width:820px){
  .page-head{padding:120px 0 0}
  .article{padding:120px 0 var(--section-gap)}
  .post-row{grid-template-columns:1fr;gap:18px}
  .post-row .post-row__arrow{display:none}
  .post-row:hover{padding-left:0;padding-right:0}
  .article__meta::after{display:none}
  .article__cover{aspect-ratio:16/10}
}