:root {
  --bg: #f7f9fb;
  --text: #1f2a37;
  --muted: #5b6773;
  --line: #e5e9ef;
  --accent: #1d3b5f;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}

.site-header {
  position: sticky;
  top: 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 24px;
  padding: 16px 40px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--accent);
}

.nav a {
  color: var(--text);
  text-decoration: none;
  margin-right: 16px;
  font-size: 14px;
}

.lang-btn {
  border: 1px solid var(--line);
  background: #fff;
  padding: 6px 10px;
  margin-left: 6px;
  cursor: pointer;
  font-size: 12px;
}
.lang-btn.active {
  border-color: var(--accent);
  color: var(--accent);
}

.section {
  max-width: 980px;
  margin: 0 auto;
  padding: 56px 24px;
  border-bottom: 1px solid var(--line);
}

.hero {
  padding-top: 72px;
}

.hero-text h1 {
  margin: 0 0 12px;
  font-size: 34px;
  font-weight: 600;
}

.hero-text p {
  margin: 0;
  color: var(--muted);
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.section-head p,
.lead,
.section p {
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 16px;
  margin: 24px 0;
}

.grid.three {
  grid-template-columns: repeat(3, 1fr);
}

.grid.one {
  grid-template-columns: 1fr;
}

.img {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: #fff;
}

.contact {
  font-size: 14px;
  line-height: 1.6;
}

.footer {
  text-align: center;
  padding: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}