.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 50;
  background: rgba(248, 245, 239, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(18, 32, 26, 0.06);
}

.nav {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--green-900);
  font-weight: 800;
  letter-spacing: 0.04em;
}
.brand svg { width: 34px; height: 34px; }
.brand span { font-family: var(--display); font-size: 22px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--green-800);
  font-weight: 600;
  font-size: 15px;
}
.nav-links a.active { color: var(--green-600); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 6px 8px;
  font-weight: 700;
  cursor: pointer;
  color: var(--green-800);
}

.menu-btn {
  display: none;
  border: 0;
  background: transparent;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  cursor: pointer;
}
.menu-btn span,
.menu-btn span::before,
.menu-btn span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--green-900);
  position: relative;
  content: "";
}
.menu-btn span::before { position: absolute; top: -6px; }
.menu-btn span::after { position: absolute; top: 6px; }

@media (max-width: 900px) {
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; }
  .nav-links, .nav-actions {
    display: none;
  }
  .site-header.open .nav-links,
  .site-header.open .nav-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    left: 0;
    right: 0;
    top: var(--nav-h);
    background: #fff;
    padding: 16px 20px 24px;
    border-bottom: 1px solid var(--line);
  }
  .site-header.open .nav-actions { top: calc(var(--nav-h) + 220px); }
}