header {
  background: linear-gradient(
    180deg,
    rgba(1, 47, 63, 0.9) 0%,
    rgba(1, 47, 63, 0.82) 60%,
    rgba(255, 255, 255, 0) 100%
  );
  border-bottom: 1px solid rgba(1, 47, 63, 0.08);
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.5rem 0;
  color: var(--color-white);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  color: var(--color-gopsco-dark);
}

.brand-lockup span.logo-mark {
  display: inline-flex;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: linear-gradient(
    135deg,
    var(--color-shakthi-red),
    var(--color-temple-gold)
  );
  box-shadow: 0 8px 18px rgba(212, 175, 55, 0.35);
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

nav a {
  color: var(--color-white);
  font-weight: 500;
  padding: 0.25rem 0;
}

nav a:hover,
nav a:focus {
  color: var(--color-temple-gold);
  text-decoration: none;
}

@media (max-width: 820px) {
  .masthead {
    flex-direction: column;
    align-items: flex-start;
  }

  nav ul {
    gap: 0.6rem 1.4rem;
  }
}