/* ============================================================
   ULTIMA — «ЯДРО»
   Worker B — document & UI. Vanilla only. Mobile-first.
   ============================================================ */

:root{
  --void:#06070A;
  --deep:#0B0E14;
  --ivory:#F1EEE6;
  --dim:#878D98;
  --line:rgba(241,238,230,.14);
  --plasma:#FF5B2E;
  --plasma2:#FFB347;
  --ice:#7BE7FF;
  --ok:#C8FF4A;

  --gutter:clamp(18px,4vw,64px);
  --wrap:min(calc(100% - 2 * var(--gutter)),1560px);

  --mono:ui-monospace,"SF Mono","Cascadia Mono","Segoe UI Mono",Consolas,"Liberation Mono",monospace;
  --display:"Unbounded",system-ui,-apple-system,"Segoe UI",sans-serif;
  --text:"Golos Text",system-ui,-apple-system,"Segoe UI",sans-serif;

  --ease:cubic-bezier(.16,1,.3,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  background:var(--void);
  overflow-x:clip;
}
body{
  margin:0;
  min-height:100%;
  font-family:var(--text);
  font-size:clamp(15px,1.05vw,18px);
  line-height:1.55;
  font-weight:400;
  color:var(--ivory);
  background:var(--void);
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,canvas{display:block;max-width:100%;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
address{font-style:normal;}
::selection{background:var(--plasma);color:var(--void);}

.wrap{width:var(--wrap);margin-inline:auto;}
.mono{font-family:var(--mono);}
.display{
  font-family:var(--display);
  font-weight:300;
  text-transform:uppercase;
  letter-spacing:-.03em;
  line-height:.98;
}
.arrow{display:inline-block;transition:transform .45s var(--ease);}

/* ---------- accessibility ---------- */
:focus-visible{outline:2px solid var(--ice);outline-offset:3px;}
.skip-link{
  position:fixed;left:12px;top:12px;z-index:100;
  transform:translateY(-200%);
  background:var(--ivory);color:var(--void);
  padding:.7em 1.1em;font-size:14px;
  transition:transform .2s ease;
}
.skip-link:focus{transform:none;}

/* ---------- z0 canvas / z1 grain / z3 hud ---------- */
#gl{
  position:fixed;inset:0;
  width:100%;height:100%;
  z-index:0;pointer-events:none;
}
.grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:140px 140px;
}
/* Reading veil: quietly gathers the backdrop away from the text columns. */
.veil{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(120% 88% at 14% 58%, rgba(6,7,10,.80) 0%, rgba(6,7,10,.50) 34%, rgba(6,7,10,.12) 60%, rgba(6,7,10,0) 76%),
    linear-gradient(180deg, rgba(6,7,10,.30) 0%, rgba(6,7,10,0) 20%, rgba(6,7,10,0) 74%, rgba(6,7,10,.42) 100%);
}
main{position:relative;z-index:2;}
.site-footer{position:relative;z-index:2;}

.progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:30;
  pointer-events:none;background:transparent;
}
.progress__fill{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--plasma),var(--ice));
}

.cursor,.cursor-dot{
  position:fixed;top:0;left:0;z-index:40;pointer-events:none;
  mix-blend-mode:difference;will-change:transform;
  border-radius:50%;
  opacity:0;
}
html.has-cursor .cursor,html.has-cursor .cursor-dot{opacity:1;}
.cursor{
  width:34px;height:34px;margin:-17px 0 0 -17px;
  border:1px solid var(--ivory);
  transition:width .3s var(--ease),height .3s var(--ease),margin .3s var(--ease),border-color .3s ease;
}
.cursor.is-hover{width:58px;height:58px;margin:-29px 0 0 -29px;border-color:var(--plasma);}
.cursor-dot{width:6px;height:6px;margin:-3px 0 0 -3px;background:var(--ivory);}
@media (pointer:fine){
  html.has-cursor,
  html.has-cursor a,
  html.has-cursor button{cursor:none;}
}

/* ---------- fallback backdrop (no JS / no WebGL) ---------- */
html:not(.js) body,
html.no-webgl body{
  background-color:var(--void);
  background-image:
    radial-gradient(120% 90% at 16% -5%,rgba(30,38,60,.92) 0%,rgba(6,7,10,0) 55%),
    radial-gradient(95% 75% at 94% 104%,rgba(58,26,12,.85) 0%,rgba(6,7,10,0) 52%),
    linear-gradient(180deg,#06070A 0%,#0B0E14 48%,#06070A 100%);
  background-attachment:fixed;
}

/* ---------- preloader ---------- */
.preloader{
  position:fixed;inset:0;z-index:60;
  display:grid;place-items:center;
  overflow:hidden;
}
.preloader__shutter{
  position:absolute;left:0;width:100%;height:50.5%;
  background:var(--void);
  transition:transform .85s cubic-bezier(.76,0,.24,1);
}
.preloader__shutter--top{top:0;}
.preloader__shutter--bottom{bottom:0;}
.preloader__inner{
  position:relative;z-index:1;
  display:flex;flex-direction:column;align-items:center;
  gap:clamp(16px,2.5vh,26px);
  width:min(62vw,340px);
}
.preloader__count{
  font-size:clamp(26px,4.4vw,52px);
  letter-spacing:.12em;font-variant-numeric:tabular-nums;
}
.preloader__line{display:block;width:100%;height:1px;background:var(--line);overflow:hidden;}
.preloader__fill{
  display:block;height:100%;width:100%;
  background:var(--ivory);
  transform:scaleX(0);transform-origin:left center;
}
.is-loaded .preloader__shutter--top{transform:translateY(-101%);}
.is-loaded .preloader__shutter--bottom{transform:translateY(101%);}
.is-loaded .preloader{visibility:hidden;transition:visibility 0s linear 1s;}
.reduced-motion .preloader,
html:not(.js) .preloader{display:none;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:20;
  padding:clamp(14px,2.4vh,26px) 0;
  transform:translateY(0);
  transition:transform .5s var(--ease);
  will-change:transform;
}
.site-header::before{
  content:"";position:absolute;left:0;right:0;top:0;
  height:calc(100% + clamp(22px,4.5vh,52px));
  background:linear-gradient(180deg,var(--void) 0%,rgba(6,7,10,.9) 46%,rgba(6,7,10,0) 100%);
  z-index:-1;pointer-events:none;
}
.site-header.is-hidden{transform:translateY(-115%);}
.site-header__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(14px,3vw,40px);
}
.site-header__brand{
  font-size:clamp(15px,1.3vw,20px);
  letter-spacing:.04em;
  color:var(--ivory);
}
.site-header__nav{display:none;gap:clamp(16px,2.2vw,36px);}
.site-header__nav a{
  font-size:13px;color:var(--dim);
  padding:.35em 0;transition:color .3s ease;
}
.site-header__nav a:hover{color:var(--ivory);}
.site-header__cta{
  display:inline-flex;align-items:center;gap:.5em;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ivory);
}
.site-header__cta:hover .arrow{transform:translateX(5px);}
@media (min-width:980px){
  .site-header__nav{display:flex;}
}

/* ---------- mobile nav (thin bottom rail) ---------- */
.mnav{display:none;}
@media (max-width:979px){
  .mnav{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:20;
    align-items:center;justify-content:space-between;
    gap:clamp(2px,1.4vw,14px);
    padding:9px var(--gutter) calc(9px + env(safe-area-inset-bottom));
    background:linear-gradient(180deg,rgba(6,7,10,0) 0%,rgba(6,7,10,.9) 52%,var(--void) 100%);
    border-top:1px solid var(--line);
  }
  .mnav a{
    flex:1 1 0;min-width:0;text-align:center;white-space:nowrap;
    font-family:var(--mono);
    font-size:clamp(9px,2.6vw,11px);letter-spacing:.04em;text-transform:uppercase;
    color:var(--dim);
    padding:.75em .15em;
    transition:color .3s ease;
  }
  .mnav a:hover,.mnav a:focus-visible{color:var(--ivory);}
  body{padding-bottom:calc(62px + env(safe-area-inset-bottom));}
}

/* ---------- generic section heading ---------- */
.section-title{
  font-size:clamp(42px,8.5vw,140px);
  font-weight:300;
}
section[id]{scroll-margin-top:clamp(72px,12vh,120px);}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding-top:clamp(110px,16vh,180px);
  padding-bottom:clamp(56px,9vh,110px);
  overflow:hidden;
}
.hero__inner{position:relative;z-index:2;}
.hero__kicker{
  font-family:var(--mono);
  font-size:clamp(10px,1.05vw,13px);
  letter-spacing:.2em;text-transform:uppercase;
  color:rgba(241,238,230,.92);
  text-shadow:0 1px 16px rgba(6,7,10,.88);
}
.hero__title{
  font-size:clamp(52px,18vw,300px);
  font-weight:250;
  line-height:.84;
  letter-spacing:-.045em;
  white-space:nowrap;
  margin:.08em 0 0 -.02em;
}
.hero__meta{
  display:grid;gap:clamp(18px,3vh,34px);
  margin-top:clamp(28px,5vh,64px);
}
.hero__sub{
  font-size:clamp(17px,1.7vw,25px);
  line-height:1.4;
  max-width:34ch;
}
.hero__proof{
  color:var(--dim);
  max-width:54ch;
  border-left:1px solid var(--line);
  padding-left:clamp(12px,1.6vw,22px);
}
.hero__cta{display:flex;flex-wrap:wrap;gap:clamp(18px,3vw,44px);}
@media (min-width:900px){
  .hero__meta{
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
    align-items:end;
    column-gap:clamp(30px,5vw,80px);
  }
  .hero__cta{grid-column:1 / -1;}
}
.cta{
  display:inline-flex;align-items:baseline;gap:.6em;
  font-size:clamp(15px,1.3vw,20px);
  padding:.4em 0;
  position:relative;
  color:var(--ivory);
}
.cta::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:currentColor;transform:scaleX(0);transform-origin:left center;
  transition:transform .55s var(--ease);
}
.cta:hover::after,.cta:focus-visible::after{transform:scaleX(1);}
.cta:hover .arrow{transform:translateX(7px);}
.cta__index{font-size:.68em;letter-spacing:.12em;color:var(--plasma);}

.hero__side{
  position:absolute;
  top:clamp(96px,17vh,190px);
  right:var(--gutter);
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-size:11px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:rgba(241,238,230,.72);
  text-shadow:0 1px 16px rgba(6,7,10,.9);
}
.hero__scroll{
  position:absolute;
  right:var(--gutter);
  bottom:clamp(16px,3vh,34px);
  display:flex;align-items:center;gap:12px;
  font-family:var(--mono);
  font-size:10px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--dim);
}
.hero__scroll-line{
  display:block;width:clamp(40px,7vw,110px);height:1px;
  background:linear-gradient(90deg,var(--line),var(--ivory));
}
@media (max-width:979px){
  .hero__scroll{bottom:calc(66px + env(safe-area-inset-bottom));}
}

/* ============================================================
   MANIFEST
   ============================================================ */
.manifest{padding-block:clamp(110px,17vh,230px);}
.manifest__grid{display:grid;gap:clamp(26px,5vw,72px);}
@media (min-width:1000px){
  .manifest__grid{
    grid-template-columns:minmax(0,1.55fr) minmax(0,.75fr);
    align-items:end;
  }
}
.manifest__statement{
  font-size:clamp(30px,5.2vw,86px);
  font-weight:300;
  line-height:1.02;
  max-width:16ch;
}
.manifest__aside{
  color:var(--dim);
  font-size:clamp(15px,1.2vw,19px);
  max-width:46ch;
}
.manifest__stats{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  margin-top:clamp(54px,9vh,130px);
  border-top:1px solid var(--line);
}
.stat{
  padding:clamp(20px,3vw,36px) 0;
  border-bottom:1px solid var(--line);
}
.stat:nth-child(odd){padding-right:clamp(10px,2vw,28px);}
.stat:nth-child(even){padding-left:clamp(10px,2vw,28px);border-left:1px solid var(--line);}
.stat__num{
  display:block;
  font-size:clamp(34px,4.6vw,76px);
  font-weight:300;
  line-height:1;
  letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
}
.stat:first-child .stat__num{color:var(--plasma);}
.stat__label{
  display:block;margin-top:.9em;
  font-family:var(--mono);
  font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--dim);
}
@media (min-width:700px){
  .manifest__stats{grid-template-columns:repeat(3,minmax(0,1fr));}
  .stat,.stat:nth-child(odd),.stat:nth-child(even){padding-inline:clamp(10px,1.6vw,26px);border-left:1px solid var(--line);border-bottom:0;}
  .stat:nth-child(3n+1){border-left:0;padding-left:0;}
}
@media (min-width:1120px){
  .manifest__stats{grid-template-columns:repeat(6,minmax(0,1fr));}
  .stat:nth-child(3n+1){border-left:1px solid var(--line);padding-left:clamp(10px,1.6vw,26px);}
  .stat:first-child{border-left:0;padding-left:0;}
  .stat__num{font-size:clamp(30px,4vw,68px);}
}

/* ============================================================
   SERVICES
   ============================================================ */
.services{padding-top:clamp(80px,12vh,150px);}
.services__head{
  display:flex;align-items:flex-end;justify-content:space-between;
  flex-wrap:wrap;
  gap:clamp(16px,4vw,48px);
  padding-bottom:clamp(40px,8vh,100px);
  border-bottom:1px solid var(--line);
}
.services__hint{
  flex:none;
  color:var(--dim);
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  padding-bottom:.7em;
}
.service{position:relative;border-bottom:1px solid var(--line);}
.service__inner{
  min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;
  gap:clamp(22px,3.4vh,46px);
  padding-block:clamp(80px,12vh,150px);
}
.service__index{
  color:var(--ice);
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;
}
.service__title{
  font-size:clamp(34px,7vw,124px);
  font-weight:300;
  max-width:15ch;
}
.service__grid{display:grid;gap:clamp(30px,5vw,74px);}
@media (min-width:960px){
  .service__grid{grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);align-items:start;}
  .service__case{margin-top:clamp(30px,8vh,110px);}
}
.service__lead{
  font-size:clamp(16px,1.5vw,22px);
  max-width:52ch;
}
.service__list-title{
  margin-top:clamp(28px,5vh,52px);
  color:var(--plasma2);
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;
}
.service__list{margin-top:.9em;border-top:1px solid var(--line);}
.service__list li{
  position:relative;
  padding:.72em 0 .72em 1.7em;
  border-bottom:1px solid var(--line);
  color:var(--dim);
}
.service__list li::before{
  content:"—";
  position:absolute;left:0;top:.72em;
  color:var(--dim);
}
.service__case{
  border-left:1px solid var(--line);
  padding-left:clamp(16px,2.4vw,40px);
}
.service__case-text{
  font-style:italic;
  font-size:clamp(16px,1.4vw,21px);
  max-width:38ch;
}
.service__price{
  font-size:clamp(40px,6vw,96px);
  font-weight:300;
  line-height:1;
  margin-bottom:.35em;
}
.service__price-unit{
  display:inline-block;
  font-family:var(--text);
  font-size:.3em;
  letter-spacing:0;text-transform:none;
  color:var(--dim);
  vertical-align:middle;
}

/* ============================================================
   CASES
   ============================================================ */
.cases{padding-block:clamp(110px,17vh,230px);border-top:1px solid var(--line);}
.cases__head{
  display:grid;gap:clamp(14px,2.5vh,26px);
  margin-bottom:clamp(44px,8vh,100px);
}
.cases__sub{color:var(--dim);max-width:44ch;}
.cases__list{border-top:1px solid var(--line);}
.case{border-bottom:1px solid var(--line);}
.case__anchor{
  display:flex;flex-direction:column;gap:12px;
  padding:clamp(26px,4.4vh,58px) 0;
  position:relative;
  transition:padding-left .5s var(--ease);
}
.case__anchor > *{min-width:0;}
.case__index{
  color:var(--dim);
  font-size:11px;letter-spacing:.2em;
}
.case__year{
  color:var(--plasma2);
  font-size:11px;letter-spacing:.2em;
}
.case__metric{
  font-size:clamp(28px,7vw,60px);
  font-weight:300;
  color:var(--ivory);
  overflow-wrap:break-word;
  transition:color .45s ease,transform .55s var(--ease);
}
.case__title{
  font-family:var(--display);
  font-weight:300;
  text-transform:uppercase;
  letter-spacing:-.02em;
  font-size:clamp(20px,2.4vw,38px);
  line-height:1.05;
}
.case__desc{color:var(--dim);max-width:56ch;}
.case__more{
  color:var(--ice);
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
}
.case__anchor:hover{padding-left:clamp(6px,1.4vw,20px);}
.case__anchor:hover .case__metric{color:var(--plasma);transform:translateX(clamp(2px,1vw,12px));}
.case__anchor:hover .arrow{transform:translateX(7px);}
.case__anchor:focus-visible .arrow{transform:translateX(7px);}
@media (min-width:900px){
  .case__anchor{
    display:grid;
    grid-template-columns:3.5rem minmax(0,1fr) minmax(0,1.15fr);
    grid-template-areas:
      "index title  metric"
      "year  desc   more";
    column-gap:clamp(20px,3vw,66px);
    row-gap:clamp(10px,1.6vh,22px);
    align-items:start;
  }
  .case__index{grid-area:index;}
  .case__year{grid-area:year;}
  .case__metric{
    grid-area:metric;
    justify-self:end;text-align:right;
    font-size:clamp(30px,3.6vw,66px);
    line-height:1;
  }
  .case__title{grid-area:title;align-self:center;}
  .case__desc{grid-area:desc;}
  .case__more{grid-area:more;justify-self:end;align-self:end;}
}

/* ============================================================
   WHY — «Почему со мной»
   ============================================================ */
.why{border-top:1px solid var(--line);}
.why__marquee{
  overflow:hidden;
  border-bottom:1px solid var(--line);
  padding-block:clamp(14px,2.4vh,30px);
}
.why__track{
  display:flex;gap:clamp(18px,3vw,50px);
  width:max-content;white-space:nowrap;
  font-family:var(--display);
  font-weight:300;text-transform:uppercase;
  letter-spacing:-.02em;
  font-size:clamp(18px,3vw,46px);
  animation:whyMarquee 42s linear infinite;
}
.why__dot{color:var(--plasma);}
@keyframes whyMarquee{from{transform:translateX(0);}to{transform:translateX(-50%);}}

.why__inner{padding-block:clamp(80px,13vh,200px);}
.why__head{display:grid;gap:clamp(14px,2.5vh,26px);margin-bottom:clamp(44px,8vh,100px);}
.why__kicker{
  color:var(--plasma);
  font-size:11px;letter-spacing:.24em;text-transform:uppercase;
}
.why__title{font-size:clamp(34px,6.4vw,110px);font-weight:300;max-width:14ch;overflow-wrap:anywhere;}
.why__sub{color:var(--dim);max-width:52ch;font-size:clamp(16px,1.35vw,21px);}

.why__console{display:grid;gap:clamp(22px,3vw,44px);}
@media (min-width:900px){
  .why__console{
    grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
    align-items:start;
    gap:clamp(40px,5vw,100px);
  }
}

/* --- переключатели --- */
.why__tabs{
  display:flex;gap:clamp(10px,1.6vw,20px);
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  padding-bottom:4px;
  scrollbar-width:none;
}
.why__tabs::-webkit-scrollbar{display:none;}
.why__tab{
  flex:0 0 auto;scroll-snap-align:start;
  display:grid;gap:.25em;
  padding:clamp(10px,1.4vh,18px) 0;
  text-align:left;
  border-bottom:1px solid var(--line);
  transition:border-color .4s ease;
}
.why__tab-top{display:flex;align-items:baseline;gap:1.1em;}
.why__tab-num{color:var(--dim);font-size:11px;letter-spacing:.2em;transition:color .4s ease;}
.why__tab-note{
  color:var(--dim);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
}
.why__tab-label{
  font-size:clamp(19px,6vw,32px);
  font-weight:300;
  color:rgba(241,238,230,.4);
  transition:color .45s var(--ease);
}
@supports (-webkit-text-stroke:1px transparent){
  .why__tab-label{color:transparent;-webkit-text-stroke:1px rgba(241,238,230,.45);}
}
.why__tab:hover .why__tab-label,
.why__tab.is-active .why__tab-label{color:var(--ivory);-webkit-text-stroke-color:var(--ivory);}
.why__tab.is-active .why__tab-num{color:var(--plasma);}
.why__tab.is-active{border-bottom-color:var(--ivory);}
@media (min-width:900px){
  .why__tabs{flex-direction:column;overflow:visible;gap:0;padding-bottom:0;}
  .why__tab{width:100%;padding-block:clamp(16px,2.6vh,30px);}
  .why__tab-label{font-size:clamp(26px,3.4vw,58px);}
}

/* --- сцена --- */
.why__stage{position:relative;display:grid;}
.why__panel{
  grid-area:1 / 1;
  align-self:start;
  min-width:0;
  border-top:1px solid var(--line);
  padding-top:clamp(22px,3.4vh,44px);
}
.js .why__panel{visibility:hidden;opacity:0;pointer-events:none;}
.js .why__panel.is-active{
  visibility:visible;opacity:1;pointer-events:auto;
  animation:whyReveal .6s var(--ease) both;
}
@keyframes whyReveal{
  from{opacity:0;transform:translateY(16px);clip-path:inset(0 0 100% 0);}
  to{opacity:1;transform:none;clip-path:inset(0 0 0 0);}
}
html:not(.js) .why__stage{display:block;}
html:not(.js) .why__panel{display:block;margin-bottom:clamp(40px,6vh,80px);}

.why__promise{
  font-size:clamp(16px,1.5vw,22px);
  line-height:1.5;
  max-width:50ch;
  color:var(--ivory);
}

.why__metric{
  display:grid;gap:.55em;
  margin-top:clamp(24px,4vh,52px);
  padding-top:clamp(20px,3vh,40px);
  border-top:1px solid var(--line);
}
.why__metric-num{
  font-size:clamp(36px,5vw,92px);
  font-weight:300;
  line-height:.98;
  letter-spacing:-.03em;
  color:var(--plasma);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.why__metric--price .why__metric-num{color:var(--ok);}
.why__metric-cap{color:var(--dim);max-width:52ch;font-size:clamp(14px,1.1vw,18px);}

.why__chips{
  margin-top:clamp(20px,3vh,36px);
  display:flex;flex-wrap:wrap;align-items:baseline;
  gap:.45em .1em;
  color:var(--ice);
  font-family:var(--mono);
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
}
.why__chips span{white-space:nowrap;}
.why__chips span + span::before{content:"·";color:var(--plasma);padding:0 .9em;}

/* --- терминал --- */
.why__terminal{
  margin-top:clamp(22px,3.6vh,44px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:clamp(16px,2.4vh,26px) 0;
  font-family:var(--mono);
  font-size:clamp(12px,1vw,15px);
  line-height:1.75;
}
.why__term-line{margin:0;color:var(--dim);overflow-wrap:anywhere;}
.why__term-line--cmd{color:var(--ice);}
.why__term-line--out{color:var(--plasma2);}
.why__term-line.is-typing::after{content:"▍";color:var(--plasma);animation:whyCaret 1s step-end infinite;}
@keyframes whyCaret{50%{opacity:0;}}

/* --- степпер --- */
.why__stepper{margin-top:clamp(24px,4vh,48px);}
.why__steps{
  display:flex;gap:clamp(8px,1.4vw,20px);
  border-bottom:1px solid var(--line);
  overflow-x:auto;scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.why__steps::-webkit-scrollbar{display:none;}
.why__step{
  flex:1 0 auto;scroll-snap-align:start;min-width:8ch;
  display:grid;gap:.45em;
  padding:0 0 clamp(12px,1.8vh,20px);
  text-align:left;
}
.why__step-index{font-size:10px;letter-spacing:.2em;color:var(--dim);transition:color .4s ease;}
.why__step.is-active .why__step-index{color:var(--plasma);}
.why__step-name{
  font-size:clamp(14px,1.4vw,22px);
  font-weight:300;
  color:var(--dim);
  transition:color .4s ease;
}
.why__step.is-active .why__step-name,.why__step:hover .why__step-name{color:var(--ivory);}
.why__step-line{display:block;height:1px;background:var(--line);position:relative;overflow:hidden;}
.why__step-line::after{
  content:"";position:absolute;inset:0;
  background:var(--plasma);
  transform:scaleX(0);transform-origin:left center;
}
.why__step.is-active .why__step-line::after{animation:whyStep .9s var(--ease) .08s both;}
@keyframes whyStep{from{transform:scaleX(0);}to{transform:scaleX(1);}}
.why__step-text{display:none;color:var(--ivory);max-width:52ch;font-size:clamp(15px,1.3vw,20px);line-height:1.5;}
.why__step-text.is-active{display:block;animation:whyReveal .5s var(--ease) both;}
.why__stepper-note{margin-top:clamp(18px,3vh,32px);color:var(--dim);max-width:54ch;}
html:not(.js) .why__step-text{display:block;margin-top:.6em;}
html:not(.js) .why__step-line::after{transform:scaleX(1);}

/* --- калькулятор --- */
.why__calc{
  margin-top:clamp(28px,4.6vh,56px);
  padding-top:clamp(20px,3vh,38px);
  border-top:1px solid var(--line);
}
.why__calc-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  gap:.4em clamp(14px,2vw,28px);
  padding:clamp(12px,1.8vh,20px) 0;
}
.why__calc-row + .why__calc-row{border-top:1px solid var(--line);}
.why__calc-label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);}
.why__calc-out{font-size:12px;color:var(--ivory);font-variant-numeric:tabular-nums;}
.why__calc-row input[type="range"]{grid-column:1 / -1;width:100%;}
.why__calc input[type="range"]{
  -webkit-appearance:none;appearance:none;
  width:100%;height:22px;margin:0;background:transparent;cursor:pointer;
}
.why__calc input[type="range"]::-webkit-slider-runnable-track{height:1px;background:var(--line);}
.why__calc input[type="range"]::-moz-range-track{height:1px;background:var(--line);}
.why__calc input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;
  width:13px;height:13px;border-radius:50%;background:var(--plasma);border:0;margin-top:-6px;
}
.why__calc input[type="range"]::-moz-range-thumb{
  width:13px;height:13px;border-radius:50%;background:var(--plasma);border:0;
}
.why__calc-result{
  margin-top:clamp(20px,3vh,36px);
  color:var(--ivory);
  font-size:clamp(15px,1.2vw,19px);
  line-height:1.3;
}
.why__calc-total{
  font-size:clamp(30px,3.6vw,64px);
  font-weight:300;
  color:var(--plasma);
  margin:0 .1em;
  white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
.why__calc-alt{
  margin-top:1.1em;color:var(--dim);
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
}
.why__calc-note{margin-top:.7em;color:var(--dim);font-size:13px;max-width:50ch;}

/* --- доступно: список и CTA --- */
.why__includes{margin-top:clamp(22px,3.6vh,44px);border-top:1px solid var(--line);}
.why__includes li{
  position:relative;
  padding:.7em 0 .7em 1.7em;
  border-bottom:1px solid var(--line);
  color:var(--dim);
}
.why__includes li::before{content:"—";position:absolute;left:0;color:var(--dim);}
.why__alt{margin-top:clamp(20px,3vh,36px);color:var(--dim);max-width:52ch;}
.why__cta{margin-top:clamp(24px,4vh,44px);}

/* controls are inert without JS */
html:not(.js) .why__tabs,html:not(.js) .why__step{pointer-events:none;}

/* ============================================================
   CONTACTS
   ============================================================ */
.contacts{padding-block:clamp(110px,17vh,230px);border-top:1px solid var(--line);}
.contacts__lead{
  color:var(--dim);
  max-width:46ch;
  font-size:clamp(16px,1.4vw,21px);
  margin-top:clamp(14px,2.5vh,26px);
}
.contacts__list{
  margin-top:clamp(44px,8vh,100px);
  border-top:1px solid var(--line);
}
.contact{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:baseline;
  gap:6px clamp(12px,2vw,30px);
  padding:clamp(18px,3vh,34px) 0;
  border-bottom:1px solid var(--line);
  transition:padding-left .5s var(--ease),color .4s ease;
}
.contact__label{
  grid-column:1 / -1;
  color:var(--dim);
  font-size:10px;letter-spacing:.2em;text-transform:uppercase;
}
.contact__value{
  font-size:clamp(23px,4.6vw,74px);
  font-weight:300;
  line-height:1;
  text-transform:none;
  overflow-wrap:anywhere;
}
.contact .arrow{color:var(--plasma);}
@media (min-width:720px){
  .contact{grid-template-columns:minmax(0,8rem) minmax(0,1fr) auto;gap:clamp(14px,2vw,34px);}
  .contact__label{grid-column:auto;}
}
.contact:hover,.contact:focus-visible{
  padding-left:clamp(8px,1.5vw,26px);
}
.contact:hover .contact__value{color:var(--plasma2);}
.contact:hover .arrow{transform:translateX(10px);}
.contacts__sign{
  margin-top:clamp(44px,8vh,100px);
  color:var(--dim);
  max-width:44ch;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{border-top:1px solid var(--line);padding-block:clamp(28px,5vh,58px);}
.site-footer__inner{
  display:flex;flex-wrap:wrap;justify-content:space-between;
  gap:10px clamp(16px,4vw,48px);
  color:var(--dim);
  font-family:var(--mono);
  font-size:10px;letter-spacing:.14em;text-transform:uppercase;
}

/* ============================================================
   REVEAL
   ============================================================ */
.rv-mask{display:inline-block;overflow:hidden;vertical-align:bottom;padding-bottom:.16em;margin-bottom:-.16em;}
.rv-word{display:inline-block;will-change:transform;}
.reveal-ready .rv-word{transform:translateY(115%);transition:transform .95s var(--ease);}
.reveal-ready.is-in .rv-word{transform:translateY(0);}
.reveal-ready.reveal-block{
  opacity:0;transform:translateY(30px);
  transition:opacity .95s ease,transform .95s var(--ease);
}
.reveal-ready.reveal-block.is-in{opacity:1;transform:none;}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .why__track{animation:none;transform:none;}
  .reveal-ready .rv-word{transform:none !important;}
  .reveal-ready.reveal-block{opacity:1 !important;transform:none !important;}
  .hero__scroll-line{background:var(--line);}
}
html.reduced-motion .why__track{animation:none;transform:none;}
html.reduced-motion .reveal-ready .rv-word{transform:none;}
html.reduced-motion .reveal-ready.reveal-block{opacity:1;transform:none;}