@font-face {
  font-family: Inter;
  src: url("assets/inter-cyrillic.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: Inter;
  src: url("assets/inter-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --ink: #191919;
  --muted: #595959;
  --line: #e2e2e2;
  --soft: #f4f4f3;
  --gutter: clamp(1.25rem, 5vw, 5rem);
  --max-width: 83rem;
  font-family: Inter, Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  scroll-behavior: smooth;
}

*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, p { margin: 0; }
body { line-height: 1.55; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid currentColor; outline-offset: 5px; }
section[id] { scroll-margin-top: 1.5rem; }

.wrap { width: min(calc(100% - 2 * var(--gutter)), var(--max-width)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 5; top: 1rem; left: 1rem; padding: .7rem 1rem; background: #fff; transform: translateY(-160%); }
.skip-link:focus { transform: none; }

.site-header { border-bottom: 1px solid var(--line); }
.site-header--hero {
  position: absolute;
  z-index: 2;
  inset: 0 0 auto;
  color: #fff;
  background: linear-gradient(rgb(0 0 0 / .48), transparent);
  border-bottom: 0;
}
.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: center;
  min-height: 5.5rem;
}
.brand { width: fit-content; display: inline-flex; align-items: center; }
.brand img { object-fit: contain; }
.site-header--hero .brand img { filter: brightness(0) invert(1); }
.site-nav { display: flex; align-items: center; gap: clamp(1.15rem, 2.7vw, 2.75rem); font-size: .9rem; font-weight: 500; }
.site-nav a:hover, address a:hover, .footer-inner a:hover { text-decoration: underline; text-underline-offset: 5px; }
.header-cta { justify-self: end; }
.menu-toggle { padding: .55rem .75rem; border: 1px solid #cbcbcb; border-radius: .35rem; background: #fff; }
.site-header--hero :is(.header-cta, .menu-toggle) { background: transparent; color: #fff; border-color: rgb(255 255 255 / .65); }
.site-header--hero :is(.header-cta, .menu-toggle):hover { background: rgb(255 255 255 / .15); border-color: #fff; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .72rem 1.12rem;
  min-height: 2.9rem;
  width: fit-content;
  border: 1px solid #cbcbcb;
  border-radius: .35rem;
  background: #fff;
  color: var(--ink);
  font-size: .88rem;
  font-weight: 600;
  transition: border-color .2s, background-color .2s;
}
.button:hover:where(:not(:disabled)) { background: var(--soft); border-color: var(--ink); }

.hero {
  position: relative;
  display: grid;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
  min-height: 100vh;
  min-height: 100svh;
  color: #fff;
  background: #555;
}
.hero-video, .hero::after { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-video { z-index: -2; object-fit: cover; object-position: center; }
.hero::after {
  z-index: -1;
  content: "";
  background: linear-gradient(90deg, rgb(0 0 0 / .72), rgb(0 0 0 / .44) 62%, rgb(0 0 0 / .34));
}
.hero-content { padding-block: 8rem 5.5rem; }
.hero h1 { font-size: clamp(3.2rem, 7.7vw, 8.3rem); font-weight: 700; line-height: .99; letter-spacing: -.07em; }
.hero p { margin-top: 1.65rem; color: #f4f4f4; font-size: clamp(1rem, 1.75vw, 1.3rem); max-width: 32rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.hero-actions .button { width: min(100%, 13rem); min-height: 3.25rem; text-align: center; }
.button-white { border-color: #fff; }
.button-white:hover { border-color: #dedede; background: #dedede; }
.button-outline { border-color: rgb(255 255 255 / .75); background: rgb(0 0 0 / .25); color: #fff; }
.button-outline:hover { border-color: #fff; background: rgb(0 0 0 / .45); }
.hero .button:focus-visible { outline-color: #fff; }

.section { padding-block: clamp(4rem, 8vw, 7.5rem); }
.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(15rem, 24rem);
  gap: 1.1rem 3rem;
  align-items: end;
  margin-bottom: clamp(1.75rem, 4vw, 3rem);
}
h2, .partner-directory h1 { font-size: clamp(2.1rem, 5vw, 4.3rem); font-weight: 650; letter-spacing: -.063em; line-height: 1.06; }
.section-heading p, .contacts > div p { color: var(--muted); font-size: clamp(.95rem, 1.45vw, 1.08rem); }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1rem, 2.2vw, 2rem); }
.placeholder {
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--soft);
  border: 1px solid #ececea;
  transition: background-color .2s;
}
.placeholder span { position: relative; width: 2rem; height: 1.45rem; overflow: hidden; border: 1px solid #a5a5a4; border-radius: .2rem; }
.placeholder span::before { position: absolute; content: ""; width: .25rem; height: .25rem; top: .22rem; left: .28rem; border-radius: 50%; background: #a5a5a4; }
.placeholder span::after { position: absolute; content: ""; width: 1.25rem; height: 1.25rem; top: .6rem; left: .55rem; border: 1px solid #a5a5a4; transform: rotate(45deg); }
.product-link { display: block; }
.product-link:hover .placeholder { background: #ebebea; }
.product-link:hover .product-title { text-decoration: underline; text-underline-offset: .25rem; }
.product-title { margin-top: 1rem; font-size: clamp(1.02rem, 1.8vw, 1.48rem); font-weight: 650; letter-spacing: -.035em; }
.product > p { margin-top: .35rem; font-size: .93rem; color: var(--muted); }

.design { border-top: 1px solid var(--line); }
.design-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.design-list a { display: block; padding: 1.15rem .1rem; border-bottom: 1px solid var(--line); font-size: clamp(1rem, 2vw, 1.45rem); font-weight: 550; letter-spacing: -.02em; }
.design-list a:hover { background: var(--soft); }

.partners { border-block: 1px solid var(--line); padding-block: clamp(3rem, 6vw, 5rem); }
.partners-header { margin-bottom: 1.75rem; }
.partners-actions { margin-top: 1.75rem; }
.marquee { overflow-x: auto; }
.marquee-track { display: flex; width: max-content; }
.partner-logos { display: flex; list-style: none; padding: 0; margin: 0; }
.partner-logos li { flex: 0 0 auto; width: clamp(8.5rem, 14vw, 12rem); padding: .7rem 1.15rem; }
.partner-logos img, .partner-grid img { width: 100%; height: 4.4rem; object-fit: contain; filter: grayscale(1); }
.marquee.is-animated { overflow: hidden; mask-image: linear-gradient(to right, transparent, #000 min(5vw, 3rem), #000 calc(100% - min(5vw, 3rem)), transparent); }
.is-animated .marquee-track { animation: scroll-logos 82s linear infinite; }
.marquee:hover .marquee-track, .partners:focus-within .marquee-track { animation-play-state: paused; }
@keyframes scroll-logos { to { transform: translateX(-50%); } }

.partner-categories { margin-top: clamp(1.75rem, 4vw, 3rem); border-bottom: 1px solid var(--line); }
.partner-category { border-top: 1px solid var(--line); }
.partner-category summary {
  display: grid;
  grid-template-columns: 1.5rem minmax(0, 1fr) 1rem;
  align-items: center;
  gap: .85rem;
  min-height: 3.75rem;
  padding: .85rem .75rem;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
  line-height: 1.3;
  list-style: none;
  cursor: pointer;
}
.partner-category summary::-webkit-details-marker { display: none; }
.partner-category summary:focus-visible { outline-offset: -2px; }
.partner-category summary:hover, .partner-category[open] summary { background: var(--soft); }
.partner-category-indicator { display: grid; place-items: center; }
.partner-category-indicator::before, .partner-category-indicator::after {
  content: "";
  grid-area: 1 / 1;
  width: .8rem;
  border-top: 1.5px solid currentColor;
}
.partner-category-indicator::after { transform: rotate(90deg); }
.partner-category[open] .partner-category-indicator::after { display: none; }
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(10.5rem, 100%), 1fr));
  gap: clamp(.5rem, 1.5vw, 1.25rem);
  margin: 0;
  padding: 1rem 0 1.5rem;
  scroll-margin-top: 5rem;
  list-style: none;
}
.partner-grid li {
  display: grid;
  align-content: start;
  justify-items: center;
  gap: .65rem;
  padding: .85rem .7rem 1rem;
  border: 1px solid var(--line);
  border-radius: .35rem;
  text-align: center;
}
.partner-grid img { max-width: 8.5rem; }
.partner-caption { max-width: 12rem; overflow-wrap: anywhere; }
.partner-caption strong { display: block; font-size: .95rem; font-weight: 650; line-height: 1.25; }
.partner-caption p { margin-top: .35rem; color: var(--muted); font-size: .85rem; line-height: 1.45; }

.contacts { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(2rem, 7vw, 8rem); }
.contacts > div p { margin-block: 1.2rem 1.5rem; max-width: 29rem; }
address { display: grid; gap: 1rem; font-style: normal; }
address div { padding-bottom: .8rem; border-bottom: 1px solid var(--line); }
address span { display: block; font-size: .8rem; color: var(--muted); }
address a, address p { font-size: 1rem; overflow-wrap: anywhere; }
.site-footer { border-top: 1px solid var(--line); padding-bottom: max(3.5rem, calc(2.5rem + env(safe-area-inset-bottom))); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: .8rem; padding-block: 1.6rem; font-size: .82rem; }
.footer-inner > span { color: var(--muted); }

.quick-contact {
  position: fixed;
  z-index: 3;
  right: max(var(--gutter), env(safe-area-inset-right));
  bottom: max(1.3rem, env(safe-area-inset-bottom));
  width: 10rem;
}
.quick-contact .button {
  display: flex;
  width: 100%;
  gap: .55rem;
  padding: .6rem .4rem;
  white-space: nowrap;
}
.quick-contact-toggle {
  list-style: none;
  box-shadow: 0 3px 12px rgb(0 0 0 / .12);
  cursor: pointer;
}
.quick-contact-toggle::-webkit-details-marker { display: none; }
.quick-contact-options {
  position: absolute;
  right: 0;
  bottom: calc(100% + .65rem);
  width: 100%;
  max-height: calc(100svh - 6rem);
  overflow-y: auto;
  margin: 0;
  padding: 0;
  list-style: none;
}
.quick-contact[open] .quick-contact-options {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .45rem;
}
.quick-contact-options a:focus-visible { outline-offset: -2px; }
.quick-contact-options button:disabled { color: var(--muted); cursor: default; }
.quick-contact-options img { flex: none; }
.quick-contact-options button:disabled img { opacity: .65; }
.chat-icon {
  position: relative;
  width: 1rem;
  height: .82rem;
  border: 1.5px solid currentColor;
  border-radius: .23rem;
  background: inherit;
}
.chat-icon::after {
  position: absolute;
  content: "";
  bottom: -.21rem;
  left: .14rem;
  width: .32rem;
  height: .32rem;
  border-bottom: 1.5px solid currentColor;
  border-left: 1.5px solid currentColor;
  background: inherit;
  transform: skewY(-35deg);
}

@media (max-width: 760px) {
  .header-inner { min-height: 4.25rem; grid-template-columns: auto 1fr auto; gap: .5rem .55rem; padding-block: .5rem; }
  .brand img { width: 70px; height: 32px; }
  .header-cta { grid-column: 2; grid-row: 1; padding: .45rem .55rem; font-size: .73rem; min-height: 2.65rem; }
  .menu-toggle { grid-column: 3; grid-row: 1; font-size: .8rem; min-height: 2.65rem; }
  .site-nav { grid-column: 1 / -1; flex-wrap: wrap; padding: .6rem .75rem; background: var(--soft); border-radius: .35rem; }
  .site-header--hero .site-nav { background: rgb(0 0 0 / .68); }
  .site-nav a { padding-block: .4rem; }
  .hero::after { background: linear-gradient(90deg, rgb(0 0 0 / .7), rgb(0 0 0 / .48)); }
  .hero h1 { font-size: clamp(2.4rem, 12.2vw, 5.5rem); }
  .section-heading, .contacts { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .product-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .placeholder { aspect-ratio: 16 / 10; }
  .partner-grid { grid-template-columns: repeat(auto-fill, minmax(min(8.5rem, 100%), 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  :root { scroll-behavior: auto; }
  .button, .placeholder { transition: none; }
}