:root {
  --blue: #064ea2;
  --cyan: #17a7da;
  --mint: #cfe7d6;
  --ink: #111827;
  --muted: #6b7280;
  --line: #d7dee8;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: #ffffff;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
}

body.lightbox-open {
  overflow: hidden;
}

header {
  align-items: center;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  padding: 16px 5vw;
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  align-items: center;
  color: var(--blue);
  display: flex;
  gap: 10px;
  text-decoration: none;
}

.brand img {
  border-radius: 8px;
  height: 50px;
  object-fit: cover;
  width: 50px;
}

.menu-toggle {
  background: var(--blue);
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  display: none;
  gap: 5px;
  padding: 12px;
  width: 48px;
}

.menu-toggle span {
  background: #ffffff;
  border-radius: 999px;
  display: block;
  height: 3px;
  width: 24px;
}

.main-menu {
  display: flex;
  gap: 10px;
}

.main-menu a {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  padding: 9px 12px;
  text-decoration: none;
}

.main-menu a:hover {
  background: #f6f9fc;
  color: var(--blue);
}

.intro {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr 420px;
  min-height: 620px;
  padding: 76px 5vw;
}

.panel {
  align-content: center;
  background: var(--blue);
  border-radius: 8px;
  color: #ffffff;
  display: grid;
  padding: 46px;
}

.panel p,
.tag,
article span {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.panel h1 {
  font-size: clamp(42px, 7vw, 82px);
  line-height: 0.98;
  margin: 10px 0 28px;
}

.panel a,
form button {
  background: #ffffff;
  border-radius: 6px;
  color: var(--blue);
  display: inline-flex;
  font-weight: 800;
  justify-self: start;
  padding: 13px 16px;
  text-decoration: none;
}

.intro > img {
  align-self: stretch;
  border-radius: 8px;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.split,
.solutions,
.gallery,
.contact {
  padding: 74px 5vw;
}

.split {
  display: grid;
  gap: 38px;
  grid-template-columns: 1fr 1fr;
}

h2 {
  font-size: clamp(30px, 4.5vw, 54px);
  line-height: 1.05;
  margin: 10px 0 0;
}

.split > p {
  color: var(--muted);
  font-size: 21px;
  line-height: 1.55;
}

.solutions {
  background: #f6f9fc;
}

.section-head {
  display: grid;
  gap: 10px;
  max-width: 720px;
}

.cards {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
}

article {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
}

article h3 {
  color: var(--blue);
  font-size: 26px;
  margin: 10px 0;
}

article p,
address {
  color: var(--muted);
  line-height: 1.6;
}

.gallery {
  background: #ffffff;
}

.gallery-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
}

.gallery-item {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  display: grid;
  overflow: hidden;
  padding: 0;
  text-align: left;
}

.gallery-item img {
  aspect-ratio: 4 / 3;
  display: block;
  height: auto;
  object-fit: cover;
  transition: transform 180ms ease;
  width: 100%;
}

.gallery-item:hover img {
  transform: scale(1.04);
}

.gallery-item span {
  color: var(--blue);
  font-weight: 800;
  padding: 14px;
}

.lightbox {
  align-items: center;
  background: rgba(4, 14, 32, 0.9);
  display: grid;
  inset: 0;
  justify-items: center;
  padding: 28px 70px;
  position: fixed;
  z-index: 50;
}

.lightbox[hidden] {
  display: none;
}

.lightbox figure {
  display: grid;
  gap: 14px;
  margin: 0;
  max-width: min(920px, 100%);
}

.lightbox img {
  background: #ffffff;
  border-radius: 8px;
  max-height: 78vh;
  max-width: 100%;
  object-fit: contain;
}

.lightbox figcaption {
  color: #ffffff;
  font-size: 18px;
  font-weight: 800;
  text-align: center;
}

.lightbox button {
  align-items: center;
  background: #ffffff;
  border: 0;
  border-radius: 999px;
  color: var(--blue);
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-size: 28px;
  font-weight: 800;
  height: 48px;
  justify-content: center;
  position: fixed;
  width: 48px;
}

.lightbox-close {
  right: 24px;
  top: 24px;
}

.lightbox-prev {
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.contact {
  display: grid;
  gap: 28px;
  grid-template-columns: 0.8fr 1fr 0.8fr;
}

form {
  display: grid;
  gap: 10px;
}

input,
textarea {
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  padding: 13px;
  width: 100%;
}

form button {
  background: var(--blue);
  border: 0;
  color: #ffffff;
  cursor: pointer;
  font: inherit;
}

address {
  font-style: normal;
}

@media (max-width: 900px) {
  header {
    align-items: center;
  }

  .menu-toggle {
    display: grid;
  }

  .main-menu {
    align-content: center;
    background: #ffffff;
    border: 0;
    border-radius: 0;
    bottom: 0;
    display: none;
    box-shadow: none;
    gap: 14px;
    left: 0;
    min-width: 0;
    padding: 92px 6vw 34px;
    position: fixed;
    right: 0;
    top: 0;
    z-index: 21;
  }

  body.menu-open .main-menu {
    display: grid;
  }

  .menu-toggle {
    position: relative;
    z-index: 22;
  }

  body.menu-open {
    overflow: hidden;
  }

  body.menu-open .menu-toggle {
    background: #ffffff;
    border: 1px solid var(--line);
  }

  body.menu-open .menu-toggle span {
    background: var(--blue);
  }

  .main-menu a {
    border-color: var(--line);
    font-size: 28px;
    font-weight: 800;
    padding: 18px;
    text-align: center;
  }

  .intro,
  .split,
  .cards,
  .gallery-grid,
  .contact {
    grid-template-columns: 1fr;
  }

  .intro {
    min-height: auto;
  }

  .lightbox {
    padding: 70px 18px 24px;
  }

  .lightbox button {
    height: 42px;
    width: 42px;
  }

  .lightbox-prev {
    left: 12px;
  }

  .lightbox-next,
  .lightbox-close {
    right: 12px;
  }
}