.site-header {
  min-height: 88px;
  padding: 0 clamp(24px, 4.4vw, 68px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-bottom: 1px solid #252d3b;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.brand-mark {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.09em;
}

.brand-mark span {
  color: #4e70ff;
}

.brand-name {
  padding-left: 14px;
  border-left: 1px solid #3a4353;
  color: #c5ccda;
  font-size: 0.61rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  line-height: 1.4;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px;
  border: 1px solid #2b3444;
  border-radius: 999px;
  background: #171e2a;
}

.site-nav a,
.contact-link {
  color: #cbd2df;
  font-size: 0.76rem;
  font-weight: 650;
  transition: background-color 160ms ease, color 160ms ease;
}

.site-nav a {
  padding: 10px 15px;
  border-radius: 999px;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: #fff;
  background: #242e40;
}

.contact-link {
  padding: 11px 17px;
  border: 1px solid #303a4c;
  border-radius: 11px;
  background: #171e2a;
}

.contact-link:hover,
.contact-link:focus-visible {
  color: #fff;
  border-color: #4e70ff;
}

@media (max-width: 760px) {
  .site-header {
    min-height: 76px;
    gap: 14px;
  }

  .site-nav {
    display: none;
  }
}

@media (max-width: 440px) {
  .site-header {
    padding: 0 18px;
  }

  .brand-name {
    font-size: 0.54rem;
  }

  .contact-link {
    padding: 10px 12px;
    font-size: 0.7rem;
  }
}