.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 48px);
  background: rgba(5, 5, 5, .92);
  border-bottom: 1px solid #2b2b2b;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #f4f4f4;
  font-weight: 800;
  letter-spacing: .04em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand__mark {
  display: block;
  width: 58px;
  height: auto;
  flex: 0 0 auto;
  filter: drop-shadow(0 8px 14px rgba(0, 0, 0, .55));
}

.brand__outline {
  fill: #fff;
  fill-rule: evenodd;
  clip-rule: evenodd;
}

.brand__lens {
  mix-blend-mode: screen;
  opacity: .46;
}

.brand__lens--red {
  fill: #d20000;
}

.brand__lens--cyan {
  fill: #00a7d2;
}

.brand__text {
  font-size: 14px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: #b8b8b8;
  font-size: 14px;
}

.site-nav a {
  color: inherit;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: #fff;
}

@media (max-width: 560px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }
}