header {
  background-color: var(--color-superficie);
  padding-left: var(--space-l);
  padding-right: var(--space-l);
  position: sticky;
  top: 0;

  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
}

header div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

header h1 {
  margin-bottom: var(--space-xs);
}

header img {
  width: 50px;
  height: auto;
  margin-bottom: var(--space-m);
}

nav a {
  color: var(--color-secundario);
  text-decoration: none;
  padding: var(--space-m);
  transition: color 0.2s ease;
}

nav a:hover {
  text-decoration: underline;
  color: var(--color-texto);
}

@media screen and (max-width: 768px) {
  header {
    gap: var(--space-m);
    justify-content: flex-start;
  }

  nav {
    display: flex;
    flex-direction: column;
  }

  nav a {
    padding: var(--space-s);
  }
}