@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

:root {
  --color-fondo: #f9f9f9;
  --color-texto: #222;
  --color-primario: #0052d4;
  --color-secundario: #25D366;
  --color-alerta: #f4b400;
  --color-error: #d93025;
  --color-card: #ffffff;
  --color-borde: #e0e0e0;
  --fuente: 'Roboto', sans-serif;
}

body {
  font-family: var(--fuente);
  margin: 0;
  background-color: var(--color-fondo);
  color: var(--color-texto);
}

/* Header */
.header {
  background-color: #000;
  color: #fff;
  padding: 2rem;
  text-align: center;
  border-bottom: 4px solid var(--color-primario);
  position: relative;
}

.header h1 {
  margin: 0;
  font-size: 2.5rem;
  font-weight: 700;
}

.tema-toggle {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #fff;
  transition: transform 0.2s ease;
}

.tema-toggle:hover {
  transform: scale(1.2);
}

/* Catálogo */
.catalog-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 2rem;
  padding: 2rem;
  max-width: 1500px;
  margin: 0 auto;
}

/* Tarjeta */
.product-card {
  background-color: var(--color-card);
  border-radius: 12px;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.product-card.agotado {
  opacity: 0.5;
  filter: grayscale(0.4);
}

.product-image-container {
  background-color: #fdfdfd;
  padding: 1rem;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.product-info {
  padding: 1.5rem;
  text-align: center;
  border-top: 1px solid var(--color-borde);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-brand,
.product-model {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-texto);
  margin-bottom: -0.75rem;
}

.product-gender {
  font-size: 0.95rem;
  color: #555;
  font-style: italic;
  margin-bottom: -1rem;
}

.product-price {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--color-primario);
  margin-bottom: 0rem;
}

.product-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.button i {
  margin-right: 0.5rem;
}

.details-button {
  background-color: #555;
  color: #fff;
}

.details-button:hover {
  background-color: #333;
}

.whatsapp-button {
  background-color: var(--color-secundario);
  color: #fff;
}

.whatsapp-button:hover {
  background-color: #1DA851;
}

.alerta {
  font-weight: bold;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  margin-top: -0.5rem;
  font-size: 0.9rem;
  text-align: center;
}

.alerta.ultimas {
  background-color: var(--color-alerta);
  color: #000;
}

.alerta.agotado {
  background-color: var(--color-error);
  color: #fff;
}

/* Modal */
.modal.hidden {
  display: none;
}

body.modal-abierto {
  overflow: hidden;
}


.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.modal-content {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-card);
  padding: 1.5rem;
  border-radius: 8px;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
  z-index: 1000;
}

.modal-close {
  position: absolute;
  top: 0.5rem;
  right: 0.75rem;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Filtros */
.filtro-toggle {
  text-align: center;
  margin: 1rem 0;
}

.filtro-toggle button {
  padding: 0.6rem 1.2rem;
  font-size: 1rem;
  background-color: var(--color-primario);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.offcanvas {
  position: fixed;
  top: 0;
  left: -320px;
  width: 300px;
  height: 100%;
  background-color: var(--color-card);
  box-shadow: 4px 0 12px rgba(0, 0, 0, 0.1);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  transition: left 0.3s ease;
}

.offcanvas.open {
  left: 0;
}

.offcanvas-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--color-borde);
}

.offcanvas-body {
  padding: 1rem;
  flex-grow: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.offcanvas-actions {
  display: flex;
  justify-content: space-between;
  margin-top: auto;
}

.offcanvas-actions button {
  padding: 0.5rem 1rem;
  font-weight: bold;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

#aplicar-filtros {
  background-color: var(--color-primario);
  color: #fff;
}

/* ------------------------------
   ESTILO DE FILTROS DINÁMICOS
------------------------------ */
.filtro-grupo {
  border: 1px solid var(--color-borde);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 1rem;
  background-color: var(--color-card);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.filtro-header {
  background-color: #f0f0f0;
  padding: 0.75rem 1rem;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid var(--color-borde);
}

.filtro-contenido {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
}

.filtro-contenido label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  cursor: pointer;
}

.filtro-contenido input[type="checkbox"] {
  accent-color: var(--color-primario);
  transform: scale(1.1);
}

#limpiar-filtros {
  background-color: #ccc;
  color: #000;
}

/* Footer */
.footer {
  text-align: center;
  padding: 1.5rem;
  margin-top: 2rem;
  background-color: #333;
  color: #aaa;
  font-size: 0.9rem;
}


.barra-categorias {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background-color: var(--color-card);
  border-bottom: 1px solid var(--color-borde);
  justify-content: center;
}

.barra-categorias button {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-borde);
  background-color: #fff;
  color: var(--color-texto);
  border-radius: 20px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.barra-categorias button:hover {
  background-color: var(--color-primario);
  color: #fff;
  border-color: var(--color-primario);
}

.barra-categorias button.activa {
  background-color: var(--color-primario);
  color: #fff;
  font-weight: bold;
}

.paginador {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: 2rem 0;
}

.pagina-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-borde);
  background-color: #fff;
  cursor: pointer;
  border-radius: 6px;
}

.pagina-btn.activa {
  background-color: var(--color-primario);
  color: #fff;
  font-weight: bold;
}

.topup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: #0052d4;
  color: #fff;
  padding: 1rem;
  z-index: 3000;
  text-align: center;
  animation: slideDown 0.5s ease;
}

.topup-content {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.topup h2 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
}

.topup p {
  margin: 0;
  font-size: 1rem;
}

.topup-close {
  position: absolute;
  top: 0.2rem;
  right: 0.5rem;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: #fff;
  cursor: pointer;
}

@keyframes slideDown {
  from { transform: translateY(-100%); }
  to { transform: translateY(0); }
}

.topup.cerrado {
  animation: fadeOut 2s ease forwards;
}

@keyframes fadeOut {
  to {
    opacity: 0;
    transform: translateY(-100%);
    pointer-events: none;
  }
}