:root {
  --bg: #000;
  --fg: #fff;
  --muted: #b3b3b3;
  --card: #d1d3d4;
  --card-hover: #e4e6e7;
  --radius: 34px;
  --max: 1240px;
  --font: "Helvetica Neue", Helvetica, Arial, "Segoe UI", sans-serif;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }

svg { display: block; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: relative;
  padding: 28px 24px 0;
}

.lang-switch {
  position: absolute;
  top: 0;
  right: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 10px;
  background: var(--fg);
  color: var(--bg);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .02em;
  border: 0;
  border-radius: 0 0 10px 10px;
  cursor: pointer;
  font-family: inherit;
  transition: background .2s, color .2s;
}
.lang-switch:hover, .lang-switch:focus-visible { background: var(--card); outline: none; }

.brand {
  display: flex;
  justify-content: center;
  padding-top: 20px;
}
.brand svg {
  width: 100%;
  max-width: 300px;
  height: auto;
  color: var(--fg);
  transition: opacity .2s;
}
.brand:hover svg { opacity: .8; }

/* ---------- Intro ---------- */
.intro {
  text-align: center;
  max-width: 1280px;
  margin: 28px auto 0;
  padding: 0 24px;
}
.intro h1 {
  font-size: clamp(20px, 2.3vw, 27px);
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -.01em;
}
.intro p {
  font-size: clamp(13px, 1.15vw, 16px);
  color: var(--muted);
  margin: 0;
}

/* ---------- Grid ---------- */
.companies {
  width: 100%;
  max-width: var(--max);
  margin: 44px auto 0;
  padding: 0 24px;
}

.grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 96px 20px;
}

.card {
  display: block;
  text-align: center;
  outline: none;
}

.card-box {
  display: flex;
  aspect-ratio: 1 / 1;
  background: var(--card);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16%;
  transition: transform .25s ease, background .25s ease, box-shadow .25s ease;
}
.card-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.card:hover .card-box,
.card:focus-visible .card-box {
  background: var(--card-hover);
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(255,255,255,.08);
}

.card-title {
  display: block;
  margin: 18px 0 6px;
  font-size: 19px;
  font-weight: 700;
}
.card-desc {
  display: block;
  margin: 0 auto;
  max-width: 320px;
  font-size: 12.5px;
  color: var(--muted);
}

.card--placeholder .card-box {
  background: transparent;
  border: 1.5px solid var(--card);
}
.card--placeholder .card-title,
.card--placeholder .card-desc { color: var(--muted); }

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 64px 0 0;
}
.pagination[hidden] { display: none; }

.page-arrow {
  background: none;
  border: 0;
  color: var(--fg);
  cursor: pointer;
  padding: 6px;
  display: inline-flex;
}
.page-arrow svg { width: 32px; height: auto; }
.page-arrow:disabled { opacity: .3; cursor: default; }
.page-arrow:not(:disabled):hover { color: var(--card); }

.page-numbers { display: flex; gap: 6px; }
.page-num {
  width: 48px;
  height: 48px;
  border: 0;
  background: var(--fg);
  color: var(--bg);
  font-family: inherit;
  font-weight: 700;
  font-size: 18px;
  cursor: pointer;
  transition: background .2s;
}
.page-num:hover { background: var(--card); }
.page-num[aria-current="page"] { background: var(--card); box-shadow: inset 0 0 0 3px #888; }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: auto;
  padding: 120px 24px 72px;
  text-align: center;
}

.social {
  display: flex;
  justify-content: center;
  gap: 42px;
  margin-bottom: 96px;
}
.social a {
  color: var(--card);
  transition: color .2s, transform .2s;
}
.social a:hover, .social a:focus-visible { color: var(--fg); transform: scale(1.08); outline: none; }
.social svg { height: 82px; width: auto; }

.address {
  font-style: normal;
  font-size: 15px;
  line-height: 1.6;
}
.address strong { display: block; font-size: 16px; }
.address a { text-decoration: none; }
.address a:hover { text-decoration: underline; }

.copyright {
  margin: 24px 0 0;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); gap: 56px 20px; }
  .social svg { height: 64px; }
  .social { margin-bottom: 64px; }
  .site-footer { padding-top: 80px; }
}

@media (max-width: 560px) {
  .site-header { padding: 20px 16px 0; }
  .lang-switch { right: 16px; }
  .brand svg { max-width: 220px; }
  .intro { padding: 0 16px; margin-top: 20px; }
  .companies { padding: 0 16px; margin-top: 32px; }
  .grid { grid-template-columns: 1fr; gap: 40px; max-width: 360px; margin: 0 auto; }
  .grid-placeholder { display: none; }
  .card-box { padding: 14%; }
  .card-title { font-size: 17px; }
  .pagination { gap: 8px; margin-top: 40px; }
  .page-num { width: 40px; height: 40px; font-size: 16px; }
  .social { gap: 28px; margin-bottom: 48px; }
  .social svg { height: 52px; }
  .address { font-size: 13.5px; }
  .site-footer { padding: 56px 16px 40px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}