header {
  background-color: var(--surface-bg);
  border-bottom: 1px solid var(--surface-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 3%;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow:
    0 4px 4px rgba(16, 24, 40, 0.05),
    0 8px 24px rgba(16, 24, 40, 0.08);
  transition:
    box-shadow 180ms ease,
    transform 180ms ease;
}

@media (max-width: 576px) {
  header {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }

  header > div {
    width: 100%;
    justify-content: center;
  }

  header .website-title,
  div.row.hidden {
    flex-basis: 100%;
  }

  header .nav-tab {
    flex-basis: 40%;
  }
}

footer {
  border-top: 1px solid #dadee5;
  padding: 1rem;
  text-align: center;
}

.page-content {
  padding: 1% 3%;
  background-color: var(--page-bg);
}

.page-content.page-content-auth {
  align-items: center;
  justify-content: center;
  gap: 1.3rem;
}

.website-title {
  cursor: pointer;
  margin-right: 1rem;
}