:root {
  --color-primario: #c54f4f;
  --color-secundario: #f7b267;
  --color-terciario: #000000;
  --color-fondo: #fff;
  --color-header-footer: #333;
  --color-nav-bg: #444;
  --color-nav-link: #fff;
  --color-card-borde: #ccc;
  --color-card-shadow: rgba(197,79,79,0.08);
  --radio-card: 16px;
  --fuente-principal: 'Roboto', sans-serif;
}

body {
  font-family: var(--fuente-principal);
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, var(--color-primario) 0%, var(--color-secundario) 100%);
  min-height: 100vh;
}

/* Header y Footer */
header, footer {
  background: linear-gradient(90deg, var(--color-header-footer) 60%, var(--color-primario) 100%);
  color: var(--color-fondo);
  text-align: center;
  padding: 2rem 1rem;
  box-shadow: 0 2px 8px var(--color-card-shadow);
  letter-spacing: 2px;
}

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

/* Títulos de sección centrados */
section {
  text-align: center;
}

section h2 {
  color: var(--color-primario);
  font-size: 2rem;
  font-weight: 700;
  margin: 2rem auto 1.5rem auto;
  letter-spacing: 1px;
  background: rgba(255,255,255,0.7);
  padding: 0.5em 2em;
  border-radius: 12px;
  box-shadow: 0 4px 16px var(--color-card-shadow);
  display: inline-block;
}

footer p {
  margin: 0;
  font-size: 1rem;
  opacity: 0.8;
}

/* Navegación */
nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
  background: var(--color-nav-bg);
  padding: 0.5rem 0;
  margin: 0;
  box-shadow: 0 2px 8px var(--color-card-shadow);
  border-radius: 0 0 var(--radio-card) var(--radio-card);
}
nav ul li {
  margin: 0 20px;
}
nav ul li a {
  color: var(--color-nav-link);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  transition: color 0.2s;
}
nav ul li a:hover {
  color: var(--color-secundario);
}

/* Productos con Flexbox */
.productos-container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  padding: 2rem 1rem;
}
.productos-container .card {
  background: var(--color-fondo);
  border-radius: var(--radio-card);
  box-shadow: 0 4px 16px var(--color-card-shadow);
  border: none;
  padding: 1.5rem 1rem;
  width: 220px;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.productos-container .card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 8px 24px var(--color-card-shadow);
}
.productos-container .card img {
  border-radius: 12px;
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px var(--color-card-shadow);
  width: 100%;
  max-width: 120px;
  height: auto;
}
.productos-container .card h3 {
  margin: 0.5rem 0 0.3rem 0;
  font-size: 1.2rem;
  color: var(--color-carrito);
}
.productos-container .card p {
  margin: 0.2rem 0;
  font-size: 1rem;
  color: var(--color-header-footer);
}
.productos-container .card strong {
  color: var(--color-secundario);
  font-size: 1.1rem;
}

/* Reseñas con Grid */
.reseñas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding: 2rem 1rem;
}
.reseñas-grid .reseña {
  background: var(--color-fondo);
  border-radius: var(--radio-card);
  box-shadow: 0 4px 16px var(--color-card-shadow);
  padding: 1.5rem 1rem;
  border: none;
}
.reseñas-grid .reseña h4 {
  margin: 0 0 0.5rem 0;
  color: var(--color-primario);
  font-size: 1.1rem;
}
.reseñas-grid .reseña p {
  margin: 0;
  color: var(--color-header-footer);
  font-size: 1rem;
}

/* Contacto y Responsividad */
form {
  display: flex;
  flex-direction: column;
  padding: 2rem 1rem;
  max-width: 500px;
  margin: 2rem auto;
  background: var(--color-fondo);
  border-radius: var(--radio-card);
  box-shadow: 0 4px 16px var(--color-card-shadow);
}
label {
  font-weight: 500;
  color: var(--color-primario);
  margin-bottom: 0.3rem;
}
input, textarea {
  margin-bottom: 1rem;
  padding: 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--color-card-borde);
  font-size: 1rem;
  transition: border-color 0.2s;
}
input:focus, textarea:focus {
  border-color: var(--color-primario);
  outline: none;
}
button[type="submit"] {
  background: linear-gradient(90deg, var(--color-primario) 60%, var(--color-secundario) 100%);
  color: var(--color-fondo);
  border: none;
  border-radius: 8px;
  padding: 0.8rem 0;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
button[type="submit"]:hover {
  background: linear-gradient(90deg, var(--color-secundario) 60%, var(--color-primario) 100%);
}

/* Carrito en header */
.carrito-header {
  position: absolute;
  top: 2rem;
  right: 2rem;
}
#carrito-btn {
  background: var(--color-nav-bg);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 0.5em 1em;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 2px 8px var(--color-card-shadow);
  display: flex;
  align-items: center;
  gap: 0.5em;
}
#carrito-btn:hover {
  background: var(--color-secundario);
}

/* Modal carrito */
.carrito-modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0; top: 0;
  width: 100vw; height: 100vh;
  background: rgba(0,0,0,0.4);
  justify-content: center;
  align-items: center;
}
.carrito-modal-content {
  background: var(--color-fondo);
  padding: 2rem;
  border-radius: 20px;
  min-width: 340px;
  max-width: 95vw;
  box-shadow: 0 8px 32px var(--color-card-shadow);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-height: 90vh;
  overflow: hidden;
  justify-content: flex-start;
}
.carrito-cerrar {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 2rem;
  color: var(--color-primario);
  cursor: pointer;
}
.carrito-lista {
  width: 100%;
  margin: 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1 1 auto;
  overflow-y: auto;
  max-height: 50vh;
}

.carrito-item {
  background: rgba(247,178,103,0.15);
  border-radius: 12px;
  box-shadow: 0 2px 8px var(--color-card-shadow);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 1rem;
}

.carrito-item span {
  flex: 1;
  color: var(--color-header-footer);
  font-weight: 500;
}

.carrito-item input[type="number"] {
  width: 50px;
  padding: 0.3em;
  border-radius: 8px;
  border: 1px solid var(--color-card-borde);
  font-size: 1rem;
  margin: 0 0.5em;
  background: #fff;
}

.carrito-item button.eliminar {
  background: var(--color-primario);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.4em 0.8em;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}
.carrito-item button.eliminar:hover {
  background: var(--color-secundario);
  color: var(--color-terciario);
}

#carrito-total {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primario);
  margin-top: 1rem;
  background: rgba(197,79,79,0.08);
  padding: 0.7em 1.2em;
  border-radius: 12px;
  box-shadow: 0 2px 8px var(--color-card-shadow);
  width: fit-content;
}

.carrito-cerrar {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 2rem;
  color: var(--color-primario);
  cursor: pointer;
  transition: color 0.2s;
}
.carrito-cerrar:hover {
  color: var(--color-secundario);
}

.vaciar-carrito {
  background: var(--color-header-footer);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.6em 1.2em;
  font-size: 1rem;
  font-weight: 600;
  margin: 1rem 0 0 0;
  cursor: pointer;
  box-shadow: 0 2px 8px var(--color-card-shadow);
  transition: background 0.2s;
}
.vaciar-carrito:hover {
  background: var(--color-secundario);
  color: var(--color-terciario);
}

/* Buscador de productos */
#busqueda-productos {
  display: block;
  margin: 1.5rem auto 0 auto;
  width: 90%;
  max-width: 400px;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 1rem;
  padding: 0.7em;
}

.productos-container .card .agregar-carrito {
  background: linear-gradient(90deg, var(--color-primario) 60%, var(--color-secundario) 100%);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.7em 1.2em;
  font-size: 1rem;
  font-weight: 600;
  margin-top: 1rem;
  cursor: pointer;
  box-shadow: 0 2px 8px var(--color-card-shadow);
  transition: background 0.2s, transform 0.2s;
  letter-spacing: 1px;
  outline: none;
}

.productos-container .card .agregar-carrito:hover,
.productos-container .card .agregar-carrito:focus {
  background: linear-gradient(90deg, var(--color-secundario) 60%, var(--color-primario) 100%);
  color: var(--color-terciario);
  transform: scale(1.05);
}

/* Responsive */
@media (max-width: 768px) {
  nav ul {
    flex-direction: column;
    align-items: stretch;
    padding: 0;
    margin: 0;
    border-radius: 0 0 8px 8px;
  }
  nav ul li {
    margin: 0;
    border-bottom: 1px solid var(--color-card-borde);
  }
  nav ul li:last-child {
    border-bottom: none;
  }
  nav ul li a {
    display: block;
    padding: 1rem;
    font-size: 1.1rem;
    text-align: left;
  }
  .productos-container {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }
  .reseñas-grid {
    gap: 1.5rem;
  }
  form {
    display: flex;
    flex-direction: column;
    padding: 2rem 1rem;
    max-width: 500px;
    margin: 2rem auto;
    background: var(--color-fondo);
    border-radius: var(--radio-card);
    box-shadow: 0 4px 16px var(--color-card-shadow);
  }
  .carrito-header {
    position: static;
    margin-top: 1rem;
    display: flex;
    justify-content: flex-end;
    width: 100%;
  }
  .carrito-modal-content {
    min-width: 95vw;
    padding: 1rem;
    border-radius: 12px;
  }
  .carrito-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.95rem;
  }
  #carrito-total {
    font-size: 1rem;
    padding: 0.5em 1em;
  }
}