.header {
  width: 100%;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background-color: var(--pastel);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;

  transition: opacity 0.3s ease; /* transición suave */
}

.header.scrolled {
  opacity: 0.8;
  backdrop-filter: blur(6px);
}

.name-portfolio {
  height: 4rem;
  font-size: var(--title);
  color: var(--black);
  font-family: "Delius", cursive;
  display: flex;
  align-items: center;
}

.nav {
  width: 35rem;
  height: 4rem;
  gap: 1rem;
  display: flex;
  gap: 1rem;
}

.nav button {
  width: 100%;
  height: 100%;
  background-color: transparent;
  color: var(--black);
  font-size: var(--text);
  font-family: "Delius", cursive;
  border: none;
  cursor: pointer;
}

.nav button:hover {
  color: var(--violet);
}

/* Tablets (768px - 1024px) */
@media (max-width: 1024px) {
  .header {
    padding: 0.8rem 1rem;
    height: 3.5rem;
  }

  .name-portfolio {
    font-size: 1.5rem; /* reduce tamaño de fuente */
    height: 3.5rem;
  }

  .nav {
    width: 25rem; /* reduce ancho de nav */
    gap: 0.8rem;
    height: 3.5rem;
  }

  .nav button {
    font-size: 0.9rem;
  }
}

/* Móviles (menos de 768px) */
@media (max-width: 767px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.5rem 1rem;
    height: auto;
  }

  .name-portfolio {
    font-size: 1.2rem;
    height: auto;
    margin-bottom: 0.5rem;
  }

  .nav {
    width: 100%;
    flex-direction: column;
    gap: 0.5rem;
    height: auto;
  }

  .nav button {
    width: 100%;
    text-align: center;
    font-size: 0.85rem;
    padding: 0.5rem 0;
  }
}