:root {
  --canvas: #141414;
  --ink: #111111;
  --navy: #335385;
  --blue: #3e6bb2;
  --nav: #242423;
  --white: #ffffff;
  --mist: #cfdff8;
  --muted: #a2a29e;
  --line: #c1c1c1;
  --wrap: 1600px;
  --prose: 960px;
  --radius: 15px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0 auto;
  max-width: var(--wrap);
  background: var(--canvas);
  color: var(--white);
  font-family: "Open Sans", sans-serif;
  font-size: 16px;
  font-weight: 300;
  line-height: 1.5;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; }

button, input { font: inherit; }

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--white);
  color: var(--ink);
  padding: 8px 12px;
  z-index: 5;
}

.skip:focus { top: 8px; }

h2 {
  margin: 0 0 16px;
  font-size: 35px;
  font-weight: 300;
  line-height: 1.5;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--navy);
}

.wrap { padding: 0 28px; }

.prose { max-width: var(--prose); margin: 0 auto; }

/* header */
.header { background: var(--canvas); }

.util {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  min-height: 44px;
  padding: 8px 28px;
}

.socials, .util__links { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.util__links a {
  color: #d0d0d0;
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.icon-btn {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: #2a2a2a;
  color: var(--white);
  border-radius: 4px;
  text-decoration: none;
}

.icon-btn svg { width: 18px; height: 18px; fill: currentColor; }

.brandbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 16px 28px 8px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #f2f4f8;
}

.logo img { width: 54px; height: 54px; object-fit: contain; }

.logo__name { font-size: 28px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }

.brandbar__contacts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
  justify-content: flex-end;
  color: #e8e8e8;
}

.brandbar__contacts a { text-decoration: none; }

.nav {
  position: relative;
  background: var(--nav);
  min-height: 75px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px 0 0;
  margin-top: 12px;
}

.nav__links { display: flex; flex-wrap: wrap; gap: 4px 8px; list-style: none; margin: 0; padding: 0; }

.nav__links a {
  display: block;
  padding: 26px 12px;
  color: var(--white);
  text-decoration: none;
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 0.03em;
}

.burger { position: relative; color: var(--white); }

.burger > summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 18px;
  text-transform: uppercase;
}

.burger > summary::-webkit-details-marker { display: none; }

.menu { display: none; }

.burger[open] .menu {
  display: block;
  position: absolute;
  left: 0;
  top: 100%;
  z-index: 3;
  width: min(1600px, 100vw);
  background: #1c1c1c;
  padding: 12px 28px 28px;
}

.menu ul { list-style: none; margin: 0 0 16px; padding: 0; }

.menu a { color: var(--white); text-decoration: none; }

.menu > ul { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* buttons */
.btn-bar {
  display: block;
  width: 100%;
  background: var(--navy);
  color: var(--white);
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  font-weight: 500;
  font-size: 16px;
  padding: 15px 25px;
  border-radius: var(--radius);
  border: 2px solid var(--navy);
  transition: background 0.3s ease, color 0.3s ease;
}

.btn-bar:hover { background: var(--blue); border-color: var(--blue); }

.btn-line {
  background: none;
  border: 0;
  color: var(--navy);
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}

.hero .btn-bar { width: auto; display: inline-block; background: var(--white); color: var(--navy); }

/* hero */
.hero { position: relative; height: 407px; overflow: hidden; background: #1a2740; }

.hero__slide {
  display: none;
  height: 100%;
  position: relative;
}

.hero__slide.is-on { display: block; }

.hero__slide img {
  width: 100%;
  height: 407px;
  object-fit: cover;
}

.hero__copy {
  position: absolute;
  left: 48px;
  top: 48px;
  max-width: 460px;
  color: var(--white);
}

.hero__copy h2 { color: var(--white); font-size: 32px; }

.hero__copy ul { margin: 0 0 18px; padding-left: 18px; }

.hero__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 0;
  background: rgba(255,255,255,0.85);
  color: var(--navy);
  cursor: pointer;
}

.hero__arrow--prev { left: 12px; }
.hero__arrow--next { right: 12px; }

.hero__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 12px 0 20px;
}

.hero__dots button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--navy);
  background: transparent;
  cursor: pointer;
}

.hero__dots button[aria-current="true"] { background: var(--navy); }

/* mosaic */
.mosaic {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px 40px;
  padding: 28px 48px 72px;
}

.card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 10px; }

.card .btn-bar { margin-top: 12px; }

/* benefits */
.benefits { padding: 24px 48px 48px; }

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px 32px;
}

.benefits h3 {
  margin: 0 0 8px;
  color: var(--white);
  font-weight: 500;
  font-size: 16px;
  text-transform: uppercase;
}

.benefits p { margin: 0; color: #d5d5d5; }

.spoiler { margin: 28px 48px; border-top: 1px solid #333; }

.spoiler summary {
  cursor: pointer;
  padding: 12px 0;
  color: var(--navy);
  font-size: 20px;
  text-transform: uppercase;
}

.spoiler__body { padding: 8px 0 32px; max-width: var(--prose); }

.spoiler__body h2 { font-size: 28px; }

.spoiler__body li { margin: 4px 0; }

/* consult */
.consult {
  margin: 24px 48px;
  background: var(--navy);
  border-radius: var(--radius);
  padding: 36px 32px;
}

.consult h2 { color: var(--white); }

.consult form { display: flex; flex-wrap: wrap; gap: 12px; }

.consult input {
  background: var(--white);
  border: 0;
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--ink);
  min-width: 220px;
}

.consult button {
  background: var(--white);
  color: var(--navy);
  border: 0;
  border-radius: 8px;
  padding: 12px 22px;
  text-transform: uppercase;
  cursor: pointer;
}

.thanks { margin: 8px 0 0; }

/* reviews */
.reviews, .logos, .news { padding: 28px 48px 48px; }

.review-grid, .news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.review, .story {
  background: #1e1e1e;
  border-radius: var(--radius);
  padding: 18px 18px 16px;
}

.review h3, .story h3 { margin: 0 0 6px; font-size: 18px; font-weight: 500; color: var(--white); text-transform: none; }

.review p, .story p { margin: 0 0 8px; color: #ddd; }

.more[hidden] { display: none; }

.logo-strip {
  display: flex;
  gap: 16px;
  overflow: hidden;
}

.mono {
  flex: 0 0 120px;
  height: 72px;
  display: grid;
  place-items: center;
  background: var(--white);
  color: var(--navy);
  font-weight: 600;
  border-radius: 8px;
}

.story img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 8px; margin-bottom: 10px; }

.story a { color: var(--mist); }

/* footer */
.prefooter {
  display: grid;
  grid-template-columns: 1.3fr repeat(4, 1fr);
  gap: 24px;
  padding: 48px;
  background: #101010;
}

.prefooter h2 { font-size: 22px; color: var(--white); }

.prefooter a { color: #ddd; text-decoration: none; display: block; margin: 4px 0; }

.prefooter ul { list-style: none; margin: 0; padding: 0; }

.legal {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 48px;
  background: #0c0c0c;
  color: var(--muted);
  font-size: 14px;
}

.legal a { color: var(--muted); }

.crumb { color: var(--muted); font-size: 13px; text-transform: uppercase; padding: 28px 48px 0; }
.crumb a { color: var(--muted); }

.page-title { padding: 8px 48px 0; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 48px 8px; }
.chips a { color: var(--mist); text-decoration: none; border: 1px solid #333; border-radius: 999px; padding: 6px 12px; }
.chips a[aria-current="page"] { background: var(--mist); color: var(--navy); }

.gallery { display: flex; gap: 12px; overflow-x: auto; padding: 16px 48px 8px; }
.gallery img { width: min(720px, 80vw); aspect-ratio: 16 / 9; object-fit: cover; border-radius: 10px; flex: 0 0 auto; }

.advantages { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 28px; padding: 8px 48px 32px; }
.advantages h3 { margin: 0 0 6px; font-size: 16px; color: var(--white); text-transform: uppercase; }
.advantages p { margin: 0; color: #ddd; }

.cost { margin: 12px 48px; }
.option, .variants { padding: 8px 48px 24px; }
.option { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 8px; align-items: center; }
.variants { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.variant { background: #1e1e1e; border-radius: var(--radius); padding: 16px; }

.tabs { display: flex; gap: 8px; overflow-x: auto; padding: 8px 48px 16px; }
.tabs button { border: 0; border-radius: 999px; padding: 10px 16px; background: var(--white); color: var(--navy); cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--mist); }

.acc { margin: 0 48px 12px; background: var(--white); color: var(--ink); border-radius: var(--radius); }
.acc summary { cursor: pointer; padding: 14px 18px; font-weight: 500; }
.acc p, .acc dl { padding: 0 18px 14px; margin: 0; }
.letters { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 8px 48px 32px; }
.letters img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 8px; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 8px 48px 24px; }
.facts div { background: #1e1e1e; border-radius: 12px; padding: 16px; }
.map { margin: 8px 48px 24px; }
.map img { width: 100%; border-radius: 12px; aspect-ratio: 16 / 9; object-fit: cover; }

@media (max-width: 700px) {
  .advantages, .variants, .letters, .facts, .option { grid-template-columns: 1fr; }
  .crumb, .page-title, .chips, .gallery, .advantages, .cost, .option, .variants, .tabs, .letters, .facts { padding-left: 16px; padding-right: 16px; }
  .acc, .map { margin-left: 16px; margin-right: 16px; }
}

/* dialogs */
dialog {
  border: 0;
  border-radius: 12px;
  padding: 24px;
  max-width: 420px;
  color: var(--ink);
}

dialog::backdrop { background: rgba(0,0,0,0.55); }

dialog label { display: block; margin: 10px 0; }

dialog input { width: 100%; padding: 8px; }

dialog menu { display: flex; gap: 8px; padding: 0; }

@media (max-width: 900px) {
  .util__links { display: none; }
  .menu > ul { grid-template-columns: 1fr 1fr; }
  .prefooter { grid-template-columns: 1fr 1fr; }
  .benefits__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .nav__links { display: none; }
  .burger[open] .menu { position: static; width: auto; }
  .mosaic, .review-grid, .news-grid, .benefits__grid, .prefooter { grid-template-columns: 1fr; }
  .hero { height: auto; }
  .hero__slide img { height: 220px; }
  .hero__copy { position: static; padding: 16px; max-width: none; }
  .brandbar { flex-direction: column; align-items: flex-start; }
  .legal { flex-direction: column; }
  .mosaic, .benefits, .reviews, .logos, .news, .consult, .spoiler { margin-left: 0; margin-right: 0; padding-left: 16px; padding-right: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn-bar { transition: none; }
}

.socials .icon-btn img { width: 22px; height: 22px; object-fit: contain; }
.card img[src$=".png"], .gallery img { object-fit: contain; background: #e9e9e9; }
.prefooter a.logo { display: flex; margin: 4px 0 16px; min-height: 54px; }
.prefooter .logo__name { font-size: 22px; line-height: 33px; }
.prefooter h2 { display: flex; align-items: center; min-height: 54px; margin: 4px 0 16px; line-height: 33px; }
.hero__slide--light .hero__copy, .hero__slide--light .hero__copy h2 { color: #18345a; }
.hero__slide--light img { object-position: right top; }
.hero__copy { left: 72px; }
@media (max-width: 700px) {
  .hero__slide--light .hero__copy { background: #f5f7fa; }
  .hero__slide--light img { object-position: right center; }
  .hero__arrow { top: 110px; }
}