:root{
  --ink:#15222d; --soft:#4a5c6b; --faint:#7d8c99;
  --paper:#ffffff; --wash:#eff3f5; --line:#ccd7de; --signal:#1d6b66;
  --measure:40rem;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);
  font:1.0625rem/1.7 Georgia,"Iowan Old Style","Times New Roman",serif}
.sans{font-family:ui-sans-serif,system-ui,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;background:var(--ink);color:#fff;padding:.5rem .75rem;z-index:9}
.wrap{max-width:52rem;margin:0 auto;padding:0 1.5rem}
p,dl,ul{max-width:var(--measure)}

header.top{border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;gap:1rem 2rem;align-items:baseline;flex-wrap:wrap;padding-top:1.1rem;padding-bottom:1.1rem}
.mark{font-family:ui-sans-serif,system-ui,sans-serif;font-weight:800;letter-spacing:-.035em;
  font-size:1.3rem;text-decoration:none;color:var(--ink);margin-right:auto}
.mark span{color:var(--signal)}
nav.top{font-family:ui-sans-serif,system-ui,sans-serif;font-size:.94rem}
nav.top a{color:var(--soft);text-decoration:none;margin-left:1.4rem}
nav.top a:first-child{margin-left:0}
nav.top a:hover,nav.top a:focus{color:var(--signal);text-decoration:underline}

h1,h2,h3{font-family:ui-sans-serif,system-ui,sans-serif;letter-spacing:-.028em;line-height:1.12;margin:0 0 .55em}
h1{font-size:clamp(2.1rem,5.6vw,3.4rem);font-weight:800;max-width:17ch}
h2{font-size:clamp(1.35rem,2.6vw,1.7rem);font-weight:700;margin-top:3.2rem}
h3{font-size:1.02rem;font-weight:700;margin:1.7rem 0 .25em;letter-spacing:-.015em}
p{margin:0 0 1.05rem}
.lede{font-size:clamp(1.1rem,2.2vw,1.3rem);line-height:1.55;color:var(--soft);max-width:36ch}
a{color:var(--signal)}
main{padding:3.5rem 0 0}
.meta{color:var(--faint);font-size:.95rem}

/* первый экран: текст и кадр 9:16 — единственный образ на странице */
.hero{display:grid;grid-template-columns:minmax(0,1fr) 11rem;gap:2.5rem;align-items:center}
.frame{aspect-ratio:9/16;border:1px solid var(--line);background:var(--wash);
  padding:.7rem;display:flex;flex-direction:column;justify-content:flex-end;gap:.4rem}
.frame i{display:block;height:.42rem;background:var(--ink);opacity:.16}
.frame i:nth-child(1){width:86%}
.frame i:nth-child(2){width:64%}
.frame i:nth-child(3){width:92%;opacity:.28}
.frame i:nth-child(4){width:48%;background:var(--signal);opacity:1;height:.5rem}
@media (max-width:40rem){.hero{grid-template-columns:1fr}.frame{width:7.5rem}}

/* производственная линия */
ol.line{list-style:none;margin:2.2rem 0 0;padding:0 0 0 2rem;border-left:2px solid var(--line);counter-reset:s;max-width:var(--measure)}
ol.line li{position:relative;padding:0 0 1.25rem;counter-increment:s}
ol.line li::before{content:counter(s);position:absolute;left:-2.85rem;top:.2rem;width:1.7rem;
  text-align:center;font-family:ui-sans-serif,system-ui,sans-serif;font-size:.78rem;font-weight:700;
  color:var(--signal);background:var(--paper)}
ol.line b{font-family:ui-sans-serif,system-ui,sans-serif;font-size:.99rem;display:block;margin-bottom:.1rem}
ol.line span{color:var(--soft)}
@media (max-width:30rem){ol.line{padding-left:1.5rem}ol.line li::before{left:-2.35rem}}

.band{background:var(--wash);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin:3.5rem 0;padding:2.4rem 0}
.band h2{margin-top:0}
ul.plain{list-style:none;padding:0;margin:0 0 1rem}
ul.plain li{padding:.35rem 0 .35rem 1.3rem;position:relative}
ul.plain li::before{content:"";position:absolute;left:0;top:1.05rem;width:.55rem;height:1px;background:var(--signal)}
dl{margin:0}
dl dt{font-family:ui-sans-serif,system-ui,sans-serif;font-weight:700;font-size:.99rem;margin-top:1.3rem}
dl dd{margin:.15rem 0 0}
.steps{counter-reset:d;list-style:none;padding:0;margin:1.5rem 0;max-width:var(--measure)}
.steps li{counter-increment:d;position:relative;padding:0 0 1.2rem 3rem}
.steps li::before{content:counter(d);position:absolute;left:0;top:-.05rem;width:1.9rem;height:1.9rem;
  border:1px solid var(--signal);color:var(--signal);border-radius:50%;
  font-family:ui-sans-serif,system-ui,sans-serif;font-size:.85rem;font-weight:700;
  display:flex;align-items:center;justify-content:center}
.ru{border-top:1px solid var(--line);margin-top:4rem;padding-top:2.6rem}
.ru h2:first-child{margin-top:0}

footer{background:var(--ink);color:#c8d3db;margin-top:4.5rem;padding:2.8rem 0 3.4rem;font-size:.95rem}
footer .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:2rem}
footer a{color:#8fc9c3}
footer .name{font-family:ui-sans-serif,system-ui,sans-serif;font-weight:700;color:#fff;letter-spacing:-.02em}
footer p{margin:0 0 .4rem;line-height:1.55}
footer nav a{display:block;margin-bottom:.35rem;text-decoration:none}
footer nav a:hover,footer nav a:focus{text-decoration:underline}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
footer :focus-visible{outline-color:#8fc9c3}