.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px 8vw 6px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 22px rgba(45, 212, 191, 0.45);
}

.nav {
  display: flex;
  gap: 16px;
  align-items: center;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

main {
  padding: 0 8vw 90px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 24px 8vw 40px;
  color: var(--muted);
  border-top: 1px solid rgba(148, 163, 184, 0.12);
}

/* Responsive Visibility Utilities */
.desktop-only {
  display: block;
}

.mobile-only {
  display: none;
}