html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Menú */
.header {
  background-color: var(--first-color);
  padding: 1rem 0;
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 1000;
  transition: background 0.3s;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.nav__list {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav__link {
  color: var(--white-color);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

.nav__link:hover {
  color: var(--first-color-alt);
}

.nav__dark {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.change-theme-name {
  font-size: 1rem;
  color: var(--white-color);
}

.change-theme {
  font-size: 1.5rem;
  color: var(--white-color);
  transition: color 0.3s;
}

.nav__toggle,
.nav__close {
  font-size: 1.5rem;
  color: var(--white-color);
  cursor: pointer;
  display: none;
}

@media screen and (max-width: 768px) {
  .nav__menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 70%;
    height: 100vh;
    background-color: var(--first-color);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: translateX(100%);
    transition: transform 0.3s;
  }

  .nav__menu.show {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    gap: 2rem;
  }

  .nav__toggle {
    display: block;
  }

  .nav__close {
    display: block;
    position: absolute;
    top: 1rem;
    right: 1rem;
  }
}

/* Catálogo */
.catalog-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 5rem; /* espacio para el menú fijo */
}

.catalogo-img {
  width: 100%;
  height: 200px; /* Tamaño fijo para todas las imágenes */
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.3s;
}

.catalogo-img:hover {
  transform: scale(1.05);
}

@media screen and (max-width: 768px) {
  .catalog-grid {
    grid-template-columns: 1fr;
  }
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.pagination-btn {
  padding: 0.5rem 1rem;
  background-color: var(--first-color);
  color: var(--white-color);
  border: none;
  cursor: pointer;
  transition: background-color 0.3s;
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-btn:hover:not(:disabled) {
  background-color: var(--first-color-alt);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  padding-top: 60px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: rgba(0,0,0,0.9);
}

.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 80%;
  transition: transform 0.3s;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

.modal-close:hover,
.modal-close:focus {
  color: #bbb;
}

.zoom-controls {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.zoom-button {
  padding: 0.5rem 1rem;
  background-color: var(--first-color);
  color: var(--white-color);
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  transition: background-color 0.3s;
}

.zoom-button:hover {
  background-color: var(--first-color-alt);
}

#zoom-range {
  width: 150px;
}

.modal-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0,0,0,0.5);
  border: none;
  color: #f1f1f1;
  font-size: 2rem;
  padding: 0.5rem;
  cursor: pointer;
}

#modal-prev {
  left: 10px;
}

#modal-next {
  right: 10px;
}

@media screen and (max-width: 768px) {
  .modal-content {
    max-width: 100%;
    max-height: 70%;
  }
}

/* Dark Mode */
body.dark-theme {
  background-color: #162527;
  color: var(--white-color);
}

body.dark-theme .pagination-btn,
body.dark-theme .zoom-button {
  background-color: #fff;
  color: var(--first-color);
}

/* Estilo del Título */
.section__title {
  font-size: 2.5rem;
  text-align: center;
  margin-top: 5rem; /* Se baja el título */
  margin-bottom: 2rem;
  color: #333; /* Nuevo color para mejor legibilidad */
  font-weight: bold;
}

body.dark-theme .section__title {
  color: #fff;
}