/* =================================================================== */
/* --- 1. Variables Globales y Reseteo Básico --- */
/* =================================================================== */

/* :root es donde definimos nuestras variables de CSS (colores, fuentes).
   Esto nos permite cambiar un color en un solo lugar y que se actualice
   en todo el sitio web. */
:root {
    --color-primario: #007BFF;
    --color-secundario: #0B3D91;
    --color-fondo-claro: #f4f4f9;
    --color-fondo-blanco: #ffffff;
    --color-texto-oscuro: #333;
    --color-texto-claro: #666;
    --color-texto-negro: #1c1c1c;
    --color-resaltado-oferta: #dc3545;
    --color-borde-claro: #e0e0e0;
    --color-borde-foco: #ced4da;
    --color-sombra-ligera: rgba(0,0,0,0.08);
    --color-sombra-media: rgba(0,0,0,0.15);
    --footer-bg: #E1E8F2;
    --footer-text: #33475c;
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

/* Reseteo Básico:
   - 'box-sizing: border-box' es crucial. Permite que el 'padding' y 'border'
     se incluyan DENTRO del ancho (width) de un elemento, no que se sumen.
     Simplifica enormemente la creación de layouts. */
*, *::before, *::after { box-sizing: border-box; }

html {
    /* 'scroll-behavior: smooth' hace que los enlaces de ancla (ej. #contacto)
       se deslicen suavemente en lugar de saltar. */
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body); /* Usamos la fuente definida en :root */
    margin: 0; /* Quitamos el margen por defecto del navegador */
    background-color: var(--color-fondo-claro);
    color: var(--color-texto-oscuro);
    line-height: 1.6; /* Mejora la legibilidad del texto */
}

/* Esta clase se añade con JS al <body> cuando un menú o modal se abre.
   'overflow: hidden' bloquea el scroll de la página de fondo. */
body.body-no-scroll {
    overflow: hidden;
}


h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
}

/* ================================================== */
/* --- 2. Barra de Navegación (Navbar) --- */
/* ================================================== */
.navbar {
    background-color: var(--color-fondo-blanco);
    padding: 10px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px var(--color-sombra-ligera);
    position: sticky; /* Fija la barra en la parte superior al hacer scroll */
    top: 0;
    z-index: 1000; /* Asegura que esté sobre el contenido normal */
    gap: 20px;
}

.navbar-top-row {
    display: contents; 
}
.navbar-left { display: flex; align-items: center; gap: 20px; }
.search-bar-container { flex-grow: 1; /* La barra de búsqueda ocupa el espacio sobrante */ }
.navbar-right { display: flex; align-items: center; gap: 20px; }

/* 2.1. Logo y Barra de Búsqueda */
.navbar .logo {
    min-width: 0; /* Permite que el logo se encoja en móvil */
}
.navbar .logo a {
    display: block;
    line-height: 0; /* Evita espacio extra bajo la imagen */
}
.navbar .logo img { 
    height: 50px; 
    display: block;
    max-width: 100%;
    object-fit: contain; /* Evita que la imagen se distorsione */
}

.search-bar { display: flex; border: 1px solid var(--color-borde-claro); border-radius: 5px; overflow: hidden; max-width: 400px; }
.search-bar input { border: none; padding: 8px 12px; outline: none; width: 100%; min-width: 150px; font-family: var(--font-body); }
.search-bar button { background-color: transparent; border: none; padding: 0 12px; cursor: pointer; color: var(--color-texto-claro); }

/* 2.2. Enlaces de Navegación (Desktop) */
.desktop-nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.desktop-nav-links > a,
.desktop-nav-links > div > a {
    text-decoration: none; 
    color: var(--color-texto-claro); 
    font-family: var(--font-heading); 
    font-weight: 500; 
    font-size: 0.95rem; 
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    white-space: nowrap; /* Evita que "Mis Pedidos" se parta en dos líneas */
}
.desktop-nav-links > a:hover,
.desktop-nav-links > div > a:hover { 
    color: var(--color-primario); 
}

/* 2.3. Controles de Sesión (Desktop) */
#user-session-controls-desktop {
    display: flex;
    align-items: center;
    gap: 15px;
}
#user-session-controls-desktop .logout-btn {
    background-color: var(--color-resaltado-oferta);
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.85rem;
    text-decoration: none;
    transition: background-color 0.2s ease;
}
#user-session-controls-desktop .logout-btn:hover {
    background-color: #c82333;
}
#user-session-controls-desktop .user-greeting {
    color: var(--color-texto-claro);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
}

/* 2.4. Estilos de Navegación (Móvil) */
/* Ocultamos los elementos específicos de móvil en la vista de escritorio */
.mobile-nav-section {
    display: none;
}
.navbar-top-mobile-icons { 
    display: none; 
}
.hamburger-btn, .close-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-texto-oscuro);
    cursor: pointer;
}
.mobile-nav-icon {
    margin-right: 10px;
    color: var(--color-primario);
    width: 20px;
    text-align: center;
}
.mobile-menu-divider {
    display: none;
    border: none;
    border-top: 1px solid var(--color-borde-claro);
    margin: 10px 0;
    width: 100%;
}
.mobile-filters-section {
    display: none;
    width: 100%;
}

/* 2.5. Visibilidad del Carrito (Desktop vs Móvil) */
.cart-icon-desktop { 
    display: flex; 
}
.cart-icon-mobile { 
    display: none; 
}

.user-greeting {
    color: var(--color-texto-claro);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
}

/* ================================================== */
/* --- 3. Contenido Principal y Filtros --- */
/* ================================================== */
.breadcrumb { background-color: var(--color-fondo-claro); padding: 10px 30px; font-size: 0.9rem; color: var(--color-texto-claro); border-bottom: 1px solid var(--color-borde-claro); }
.breadcrumb a { color: var(--color-primario); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* 3.1. Contenedores de Layout */
.main-container, .content-wrapper {
    max-width: 1400px; /* Ancho máximo del contenido */
    margin: 0 auto; /* Centra el contenido */
    padding: 25px 30px;
}
.main-container { padding-bottom: 0; }
.content-wrapper { display: flex; gap: 25px; padding-top: 0; transition: gap 0.4s ease; }

.toggle-filters-btn {
    display: none; 
}

/* 3.2. Barra Lateral de Filtros (Desktop) */
.desktop-filters-wrapper {
    display: flex; /* Crea el layout de 2 columnas (filtros + productos) */
}
.filters-sidebar {
    /* 'flex: 0 0 250px' significa:
       - No crecerá (0), No se encogerá (0), Ancho base de 250px. */
    flex: 0 0 250px;
    background-color: var(--color-fondo-blanco);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 8px var(--color-sombra-ligera);
    height: fit-content;
    position: sticky; /* Se fija al hacer scroll */
    top: 90px; /* Deja espacio para el navbar */
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 110px); /* Evita que sea más alto que la pantalla */
}
.filter-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; border-bottom: 1px solid var(--color-borde-claro); padding-bottom: 15px; }
.filter-header h3 { margin: 0; color: var(--color-secundario); font-size: 1.3rem; }
.filter-header button { background: none; border: none; color: var(--color-primario); cursor: pointer; font-size: 0.85rem; font-weight: 500; padding: 5px; border-radius: 5px; transition: background-color 0.2s ease; }
.filter-header button:hover { background-color: rgba(0, 123, 255, 0.1); }
.filters-container { overflow-y: auto; padding-right: 10px; /* Permite scroll si hay muchos filtros */ }
.filter-group { margin-bottom: 25px; }
.filter-group h4 { margin: 20px 0 15px 0; color: var(--color-texto-oscuro); font-size: 1rem; }
.checkbox-group label { display: flex; align-items: center; margin-bottom: 8px; cursor: pointer; font-size: 0.9rem; }
.checkbox-group input { margin-right: 10px; accent-color: var(--color-primario); }
.filter-group .fa-star { color: #FFD700; }
.price-range { display: flex; align-items: center; gap: 5px; margin-bottom: 10px; }
.price-range input { width: 100%; padding: 5px; border: 1px solid var(--color-borde-foco); border-radius: 4px; }
.price-presets label { font-size: 0.9rem; }

/* 3.3. Contenido Principal (Catálogo) */
.products-main-content { 
    flex: 1; /* Ocupa todo el espacio restante */
    min-width: 0; 
}
.products-header { background-color: var(--color-fondo-blanco); padding: 15px 20px; border-radius: 8px; margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 8px var(--color-sombra-ligera); }
.products-header p { margin: 0; font-size: 0.9rem; color: var(--color-texto-claro); }
.sort-options { display: flex; align-items: center; gap: 10px; }
.sort-options label { font-size: 0.9rem; color: var(--color-texto-claro); white-space: nowrap; }
.sort-options select { font-family: var(--font-body); font-size: 0.95rem; padding: 8px 12px; border-radius: 6px; border: 1px solid var(--color-borde-foco); background-color: var(--color-fondo-blanco); cursor: pointer; }
.sort-options button { border-radius: 6px; width: 40px; height: 40px; font-size: 1rem; cursor: pointer; background-color: transparent; border: 1px solid var(--color-borde-claro); color: var(--color-texto-claro); }
.sort-options button.active { background-color: var(--color-primario); color: white; border-color: var(--color-primario); }

/* 3.4. Cuadrícula de Productos */
#catalogo-productos {
    display: grid;
    /* 'grid-template-columns' define el layout responsive:
       - 'repeat(auto-fill, ...)': Llena la fila con tantas columnas como quepan.
       - 'minmax(321px, 1fr)': Cada columna tendrá un mínimo de 321px
         y crecerá (1fr) para ocupar el espacio sobrante. */
    grid-template-columns: repeat(auto-fill, minmax(321px, 1fr));
    gap: 25px;
    align-items: start;
}

/* ================================================== */
/* --- 4. Tarjeta de Producto (Product Card) --- */
/* ================================================== */
.product-card { 
    background-color: var(--color-fondo-blanco); 
    border-radius: 8px; 
    box-shadow: 0 4px 10px var(--color-sombra-ligera); 
    overflow: hidden; 
    position: relative; 
    display: flex; 
    flex-direction: column; /* Apila imagen, info y precio verticalmente */
    transition: transform 0.2s ease, box-shadow 0.2s ease; 
}
.product-card:hover { 
    transform: translateY(-5px); /* Efecto de "elevación" */
    box-shadow: 0 6px 15px var(--color-sombra-media); 
}
.product-card h3{font-family: var(--font-heading); font-weight: 600; font-size:1.05rem; margin: 0 0 5px 0; color:var(--color-texto-oscuro); line-height:1.3}
.product-card .product-image-container{ position:relative; width:100%; height: 280px; overflow:hidden; }
.product-card img{ position:absolute; top:0; left:0; width:100%; height:100%; object-fit: contain; /* 'contain' evita que la imagen se corte */ transition:transform .3s ease; }
.product-card:hover img{transform:scale(1.05)}
.product-card .product-info { padding: 15px; flex-grow: 1; display: flex; flex-direction: column; }
.product-card .description{
    font-size:.85rem;
    color:var(--color-texto-claro);
    margin-bottom:10px;
    overflow:hidden;
    /* Truco para cortar texto después de 2 líneas con "..." */
    display:-webkit-box;
    -webkit-line-clamp:2;
    line-clamp:2;
    -webkit-box-orient:vertical
}
.product-card .reviews { font-size: .8rem; color: #777; display: flex; align-items: center; flex-shrink: 1; min-width: 0; }
.product-card .reviews .stars{color:#FFD700;margin-right:5px}
.reviews-stock-container { display: flex; justify-content: flex-start; align-items: baseline; margin-bottom: 10px; gap: 10px; flex-wrap: nowrap; }
.stock-display { font-size: 0.9rem; font-weight: 600; white-space: nowrap; flex-shrink: 0; }
.stock-display.available { color: #28a745; }
.stock-display.unavailable { color: var(--color-resaltado-oferta); }
.product-card .price-section { display: flex; align-items: center; justify-content: space-between; padding-top: 10px; border-top: 1px solid var(--color-borde-claro); gap: 10px; }
.product-card .price-container { flex-grow: 1; display: flex; flex-direction: column; gap: 2px; min-height: 2.8rem; justify-content: flex-start; }
.product-card .add-to-cart-btn { flex-shrink: 0; background-color: var(--color-resaltado-oferta); color: #fff; border: none; padding: 10px 15px; border-radius: 5px; cursor: pointer; font-family: var(--font-heading); font-size: .9rem; font-weight: 500; transition: background-color .2s ease; white-space: nowrap; }
.product-card .current-price{font-size:1.1rem;font-weight:700;color:var(--color-primario)}
.product-card .add-to-cart-btn:hover{background-color:#c82333}
.product-card .add-to-cart-btn:disabled { background-color: #999; cursor: not-allowed; }

/* ================================================== */
/* --- 5. Carruseles (Swiper.js) --- */
/* ================================================== */
.carousel-section { max-width: 100%; margin-bottom: 25px; }
.carousel-header { background-color: var(--color-primario); color: #fff; padding: 10px 20px; border-radius: 8px 8px 0 0; }
.carousel-header h2 { margin: 0; font-size: 1.5rem; }
.swiper { position: relative; width: 100%; padding: 20px 60px; background: var(--color-fondo-blanco); border-radius: 0 0 8px 8px; box-shadow: 0 2px 8px var(--color-sombra-ligera); min-height: 120px; }

/* 5.1. Carrusel de Marcas */
#marcas-carousel .swiper-wrapper { align-items: center; }
#marcas-carousel .swiper-slide { display: flex; justify-content: center; align-items: center; width: 200px; height: 100px; opacity: 0.7; transition: opacity 0.3s ease; }
#marcas-carousel .swiper-slide:hover { opacity: 1; }
#marcas-carousel img { max-width: 150px; max-height: 60px; object-fit: contain; }

/* 5.2. Carrusel de 'Más Vendidos' */
#mas-vendidos-carousel .swiper-wrapper { align-items: stretch; /* Asegura que todas las tarjetas tengan la misma altura */ }
.swiper-button-next, .swiper-button-prev { color: var(--color-primario) !important; background-color: rgba(255, 255, 255, 0.9); border-radius: 50%; width: 44px !important; height: 44px !important; box-shadow: 0 2px 5px rgba(0,0,0,0.15); }
.swiper-button-next:after, .swiper-button-prev:after { font-size: 20px !important; font-weight: bold; }
.swiper-pagination { display: none !important; }

/* 5.3. Estilos de Tarjeta de Producto DENTRO del carrusel 'Más Vendidos' */
#mas-vendidos-carousel .swiper-slide { width: 530px; padding: 10px; display: flex; box-sizing: border-box; height: auto; }
#mas-vendidos-carousel .product-card { 
    flex-direction: row; /* Cambia el layout a horizontal */
    align-items: stretch; 
    width: 100%; 
    min-height: 190px; 
}
#mas-vendidos-carousel .product-card .product-image-container { 
    flex: 0 0 160px; /* Ancho fijo para la imagen */
    height: auto; 
    padding-bottom: 0; 
    position: relative; 
}
#mas-vendidos-carousel .product-card img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: contain; }
#mas-vendidos-carousel .product-card .product-info { flex-grow: 1; padding: 15px; border-top: none; border-left: 1px solid var(--color-borde-claro); display: flex; flex-direction: column; }
#mas-vendidos-carousel .product-card .description { -webkit-line-clamp: 2; line-clamp: 2; padding-bottom: 10px; }
#mas-vendidos-carousel .product-card .price-section { 
    flex-direction: row; 
    align-items: center; 
    gap: 15px; 
    margin-top: auto; /* Empuja el precio al fondo de la tarjeta */
}

/* ================================================== */
/* --- 6. Pie de Página (Footer) --- */
/* ================================================== */
footer { background-color: var(--footer-bg); color: var(--footer-text); padding: 40px 0 0 0; margin-top: 40px; }
.footer-content { max-width: 1400px; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: space-around; align-items: flex-start; gap: 30px; padding: 0 30px; }
.footer-map, .footer-info { flex: 1; min-width: 320px; /* Asegura que no se compriman demasiado */ }
.footer-map iframe { width: 100%; height: 280px; border: 0; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
.footer-info { text-align: left; }
.footer-logo { max-width: 400px; margin-bottom: 15px; }
.footer-section-title { font-family: var(--font-heading); font-weight: 600; text-transform: uppercase; margin: 20px 0 10px 0; color: var(--color-secundario); font-size: 1rem; }
.contact-item { display: flex; align-items: center; margin-bottom: 15px; font-size: 0.95rem; color: var(--footer-text); }
.contact-item i { font-size: 1.2rem; color: var(--color-primario); width: 30px; text-align: center; margin-right: 10px; }
.contact-item a { color: var(--footer-text); text-decoration: none; }
.contact-item a:hover { color: var(--color-primario); text-decoration: underline; }
.footer-bottom { text-align: center; padding: 20px; margin-top: 30px; background-color: var(--color-texto-negro); color: #aaa; font-size: 0.9rem; }


/* ================================================== */
/* --- 7. Carrito, Modales y Overlays --- */
/* ================================================== */

/* 7.1. Icono del Carrito y Contador */
.cart-icon, .mobile-top-icon {
    position: relative;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--color-texto-oscuro);
    display: flex;
    align-items: center;
    text-decoration: none;
}
.cart-counter { 
    position: absolute; 
    top: -10px; 
    right: -10px; 
    background-color: var(--color-resaltado-oferta); 
    color: #fff; 
    border-radius: 10px; 
    min-width: 20px; 
    height: 20px; 
    padding: 0 5px; 
    font-size: 0.75rem; 
    font-weight: 700; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    line-height: 1; 
    border: 2px solid var(--color-fondo-blanco); /* Crea un efecto de "recorte" */
    z-index: 1; 
    box-sizing: border-box; 
}

/* 7.2. Lógica de z-index (Capas)
 * z-index: 999  (Overlay de fondo para menús)
 * z-index: 1000 (Navbar principal)
 * z-index: 1002 (Carrito lateral)
 * z-index: 1003 (Overlay de fondo para modales)
 * z-index: 1004 (Modal de contenido)
 * z-index: 1005 (Menú lateral móvil)
 * z-index: 2000 (Notificaciones "Toast")
 *************************************/

/* 7.3. Overlay (fondo oscuro) para Carrito y Menú Móvil */
.cart-overlay { 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    background-color: rgba(0, 0, 0, 0.5); 
    z-index: 999; /* Por debajo del navbar y los menús */
    opacity: 0; 
    visibility: hidden; /* Oculto por defecto */
    transition: opacity 0.3s ease, visibility 0.3s ease; 
}
.cart-overlay.active { opacity: 1; visibility: visible; }

/* 7.4. Panel Lateral del Carrito */
.cart-sidebar { 
    position: fixed; 
    top: 0; 
    right: 0; 
    width: 100%; 
    max-width: 400px; 
    height: 100%; 
    background-color: var(--color-fondo-blanco); 
    z-index: 1002; /* Sobre el navbar y el overlay */
    transform: translateX(100%); /* Oculto a la derecha */
    transition: transform 0.3s ease; 
    display: flex; 
    flex-direction: column; 
    box-shadow: -5px 0 15px rgba(0,0,0,0.1); 
}
.cart-sidebar.active { transform: translateX(0); /* Se mueve a la vista */ }
.cart-header { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; border-bottom: 1px solid var(--color-borde-claro); }
.cart-header h2 { margin: 0; font-size: 1.4rem; }
.close-cart-btn { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--color-texto-claro); }
.cart-body { flex-grow: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 20px; }
.cart-item { display: flex; align-items: center; gap: 15px; border-bottom: 1px solid var(--color-borde-claro); padding-bottom: 20px; margin-bottom: 0; }
.cart-item-img { width: 80px; height: 80px; object-fit: cover; border-radius: 8px; border: 1px solid var(--color-borde-claro); }
.cart-item-details { flex-grow: 1; }
.cart-item-title { font-family: var(--font-heading); font-weight: 600; font-size: 0.95rem; margin: 0 0 5px 0; }
.cart-item-price { font-size: 1rem; font-weight: 700; color: var(--color-primario); }
.cart-item-actions { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; }
.quantity-control { display: flex; align-items: center; border: 1px solid var(--color-borde-claro); border-radius: 5px; }
.quantity-btn { background: none; border: none; cursor: pointer; font-size: 1.2rem; width: 30px; height: 30px; color: var(--color-texto-oscuro); }
.quantity-input { width: 35px; text-align: center; border: none; font-size: 1rem; font-weight: 500; outline: none; -moz-appearance: textfield; appearance: textfield;}
/* Oculta las flechas en los campos de número */
.quantity-input::-webkit-outer-spin-button, .quantity-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.remove-item-btn { background: none; border: none; color: var(--color-resaltado-oferta); cursor: pointer; font-size: 1.2rem; }
.cart-empty-msg { text-align: center; color: var(--color-texto-claro); margin-top: 50px; }
.cart-footer { padding: 20px; border-top: 1px solid var(--color-borde-claro); background-color: var(--color-fondo-claro); }
.summary-line { display: flex; justify-content: space-between; margin-bottom: 10px; font-size: 1rem; }
.summary-line.total { font-size: 1.2rem; font-weight: 700; margin-top: 15px; }


/* ================================================== */
/* --- 8. Modales (Pop-ups) --- */
/* ================================================== */
.btn-accion-grande { width: 100%; padding: 15px; border: none; border-radius: 8px; color: #fff; font-size: 1.1rem; font-weight: 600; font-family: var(--font-heading); cursor: pointer; margin-top: 15px; }
.checkout-btn { background: linear-gradient(45deg, #007BFF, #00C6FF); transition: transform 0.2s ease, box-shadow 0.2s ease; }
.checkout-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0, 123, 255, 0.4); }
.modal-button { background: var(--color-primario); transition: background-color 0.2s ease; margin-top: 10px; }
.modal-button:hover { background-color: var(--color-secundario); }

/* 8.1. Overlay (fondo oscuro) para Modales */
.modal-overlay { 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    background-color: rgba(0, 0, 0, 0.6); 
    z-index: 1003; /* Sobre el carrito (1002) */
    opacity: 0; 
    visibility: hidden; 
    transition: opacity 0.3s ease, visibility 0.3s ease; 
}
.modal-overlay.active { opacity: 1; visibility: visible; }

/* 8.2. Contenedor del Modal (Pop-up) */
.modal { 
    position: fixed; 
    top: 50%; 
    left: 50%; 
    /* Este 'transform' centra el modal perfectamente */
    transform: translate(-50%, -50%) scale(0.9); 
    width: 100%; 
    background-color: var(--color-fondo-blanco); 
    border-radius: 12px; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.15); 
    z-index: 1004; /* Sobre el overlay del modal (1003) */
    opacity: 0; 
    visibility: hidden; 
    transition: all 0.3s ease; 
}
.modal.active { opacity: 1; visibility: visible; transform: translate(-50%, -50%) scale(1); }
.close-modal-btn { position: absolute; top: 10px; right: 15px; background: none; border: none; font-size: 1.6rem; cursor: pointer; color: var(--color-texto-claro); z-index: 5; }
.modal-container { padding: 40px; }
.modal-container h2 { text-align: center; margin-top: 0; margin-bottom: 30px; color: var(--color-secundario); }

/* 8.3. Formularios dentro de Modales */
.input-group { margin-bottom: 20px; }
.input-group label { display: block; margin-bottom: 8px; font-weight: 500; font-size: 0.9rem; color: var(--color-texto-claro); }
.input-group input, .input-group select { width: 100%; padding: 12px 15px; border: 1px solid var(--color-borde-foco); border-radius: 6px; font-size: 1rem; font-family: var(--font-body); }
.form-switcher { text-align: center; margin-top: 20px; font-size: 0.9rem; }
.form-switcher a { color: var(--color-primario); font-weight: 600; text-decoration: none; }
.auth-form.hidden { display: none; } /* Oculta el formulario de login/registro inactivo */

#auth-modal { max-width: 420px; }
#checkout-modal { max-width: 500px; }
#alert-modal { max-width: 400px; }
#account-modal { max-width: 700px; }

/* 8.4. Controles de Sesión (Menú Móvil) */
#user-session-controls { display: flex; align-items: center; gap: 15px; }
#user-session-controls .logout-btn { background-color: var(--color-resaltado-oferta); color: white; padding: 5px 10px; border-radius: 5px; font-size: 0.85rem; text-decoration: none; transition: background-color 0.2s ease; }
#user-session-controls .logout-btn:hover { background-color: #c82333; }


/* ================================================== */
/* --- 9. Utilitarios (Vista de Lista, Notificaciones, etc.) --- */
/* ================================================== */

/* 9.1. Vista de "Lista" para el catálogo */
/* Estos estilos se aplican cuando JS añade la clase '.product-list' */
#catalogo-productos.product-list { 
    grid-template-columns: 1fr; /* Cambia de N columnas a solo 1 */
    gap: 20px; 
}
/* Reutiliza el layout horizontal del carrusel para la vista de lista */
#catalogo-productos.product-list .product-card { 
    flex-direction: row; 
    align-items: stretch; 
    max-width: 100%; 
    min-height: 200px; 
}
#catalogo-productos.product-list .product-image-container { 
    flex: 0 0 200px; 
    height: auto; 
    padding-bottom: 0; 
}
#catalogo-productos.product-list .product-info { 
    flex-grow: 1; 
    padding: 20px; 
    border-top: none; 
    border-left: 1px solid var(--color-borde-claro); 
    display: flex; 
    flex-direction: column; 
}
#catalogo-productos.product-list .description { -webkit-line-clamp: 3; line-clamp: 3; padding-bottom: 10px; }
#catalogo-productos.product-list .price-section { flex-direction: row; align-items: center; gap: 15px; margin-top: auto; }

/* 9.2. Notificaciones "Toast" */
.notification-container { 
    position: fixed; 
    top: 90px; /* Debajo del navbar */
    right: 20px; 
    z-index: 2000; /* Sobre todo lo demás */
    display: flex; 
    flex-direction: column; 
    gap: 10px; 
}
.notification { 
    padding: 15px 20px; 
    border-radius: 8px; 
    color: #fff; 
    font-family: var(--font-body); 
    font-size: 0.95rem; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.2); 
    opacity: 0; 
    transform: translateX(100%); /* Oculto a la derecha */
    transition: all 0.4s ease; 
}
.notification.show { opacity: 1; transform: translateX(0); /* Entra a la vista */ }
.notification.success { background-color: #28a745; }
.notification.error { background-color: #dc3545; }
.notification.info { background-color: #17a2b8; }

/* 9.3. Badges y Precios (en Tarjetas de Producto) */
.product-badge { position: absolute; top: 10px; right: 10px; background-color: var(--color-resaltado-oferta); color: #fff; padding: 5px 10px; border-radius: 5px; font-size: 0.85rem; font-weight: 600; font-family: var(--font-heading); z-index: 2; box-shadow: 0 2px 5px rgba(0,0,0,0.2); }
.price-container { display: flex; flex-direction: column; gap: 2px; }
.price-line-1 { display: flex; align-items: baseline; gap: 8px; flex-wrap: nowrap; }
.old-price { font-size: 0.8rem; color: var(--color-texto-claro); text-decoration: line-through; }
.discount-percentage { font-size: 0.8rem; font-weight: 600; color: var(--color-resaltado-oferta); font-family: var(--font-heading); }

/* 9.4. Historial de Pedidos (Modal 'Mi Cuenta') */
#order-history-container h3 { border-bottom: 2px solid var(--color-borde-claro); padding-bottom: 10px; margin-bottom: 20px; color: var(--color-secundario); }
#order-history-list { max-height: 60vh; overflow-y: auto; padding-right: 10px; display: flex; flex-direction: column; gap: 15px; }
.order-history-item { border: 1px solid var(--color-borde-claro); border-radius: 8px; background-color: var(--color-fondo-claro); }
.order-history-header { display: flex; justify-content: space-between; align-items: center; padding: 10px 15px; background-color: #e9ecef; border-bottom: 1px solid var(--color-borde-claro); border-radius: 8px 8px 0 0; }
.order-history-header span { font-weight: 700; color: var(--color-primario); }
.order-history-details { padding: 15px; font-size: 0.9rem; }
.order-history-details p { margin: 5px 0; }
.order-history-details ul { margin-top: 10px; padding-left: 20px; margin-bottom: 0; }
.order-history-details li { margin-bottom: 5px; color: var(--color-texto-claro); }


/* =================================================================== */
/* --- 10. Estilos Responsive (Media Queries) --- */
/* =================================================================== */

/* 10.1. Tablet y Móvil (Ancho menor a 768px) */
@media (max-width: 768px) {
    
    /* El navbar cambia a un layout vertical */
    .navbar {
        flex-direction: column;
        align-items: stretch;
        padding: 10px 15px;
        gap: 10px;
    }
    
    .navbar-top-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        gap: 10px;
    }
    .navbar-left {
        gap: 10px;
        flex: 1; /* Ocupa espacio para empujar los iconos a la derecha */
        min-width: 0;
    }
    .navbar-left .logo {
        flex: 1;
        min-width: 0;
    }
    .hamburger-btn {
        display: block; /* Muestra el botón de hamburguesa */
        flex-shrink: 0;
    }
    
    /* La barra de búsqueda pasa a una nueva fila */
    .search-bar-container {
        width: 100%;
        order: 2; /* Cambia el orden visual */
    }
    .search-bar {
        max-width: none;
    }
    .search-bar input {
        width: 100%;
    }

    /* Oculta el carrito de desktop y muestra el de móvil */
    .cart-icon-desktop { 
        display: none;
    }
    .navbar-top-mobile-icons {
        display: flex;
        align-items: center;
        gap: 15px; 
        flex-shrink: 0;
    }
    .cart-icon-mobile { 
        display: flex; 
    }

    /* 10.2. Menú Lateral Móvil (Conversión del .navbar-right) */
    
    /* Ocultamos los enlaces de desktop */
    .desktop-nav-links {
        display: none;
    }
    
    /* Mostramos las secciones del menú móvil */
    .mobile-nav-section {
        display: block; 
    }
    .mobile-menu-divider {
        display: block; 
    }

    /* .navbar-right se convierte en el panel lateral */
    .navbar-right {
        position: fixed;
        top: 0;
        left: 0;
        width: 300px;
        height: 100%;
        background-color: var(--color-fondo-blanco);
        flex-direction: column;
        align-items: stretch;
        padding: 60px 0 20px 0;
        gap: 0;
        z-index: 1005; /* Sobre los modales (1004) */
        box-shadow: 5px 0 15px rgba(0,0,0,0.1);
        transform: translateX(-100%); /* Oculto a la izquierda */
        transition: transform 0.3s ease;
        overflow-y: auto; /* Permite scroll si hay muchos filtros */
    }
    .navbar-right.active {
        transform: translateX(0); /* Lo trae a la vista */
    }
    .close-menu-btn {
        display: block;
        position: absolute;
        top: 10px;
        right: 15px;
        font-size: 1.6rem;
    }
    
    /* Estilos de los enlaces DENTRO del menú lateral */
    .mobile-nav-section {
        padding: 0 20px; 
    }
    .navbar-right a {
        display: flex;
        align-items: center;
        padding: 15px 10px;
        width: 100%;
        border-bottom: 1px solid var(--color-borde-claro);
        font-size: 1rem;
        color: var(--color-texto-oscuro);
        text-decoration: none;
    }
     .navbar-right a:hover {
        background-color: var(--color-fondo-claro);
    }
    
    /* Controles de sesión DENTRO del menú lateral */
    #user-session-controls {
        padding: 0;
        width: 100%;
    }
    #user-session-controls a {
        border-bottom: 1px solid var(--color-borde-claro); 
    }
    .navbar-right .user-greeting {
        padding: 15px 10px;
        width: 100%;
        color: var(--color-texto-claro);
        font-weight: 500;
        border-bottom: 1px solid var(--color-borde-claro);
    }
    .navbar-right .logout-btn {
         display: flex;
         align-items: center;
         justify-content: center;
         padding: 15px 10px;
         width: 100%;
         color: white;
         background-color: var(--color-resaltado-oferta);
         border-radius: 0;
         margin-top: 0;
         font-size: 1rem;
         border-bottom: 1px solid var(--color-borde-claro);
    }
     .navbar-right .logout-btn:hover {
        background-color: #c82333;
    }

    .mobile-menu-divider {
        display: block; 
    }

    /* Mostramos la sección de FILTROS (copia 1) DENTRO del menú móvil */
    .mobile-filters-section {
        display: block; 
        padding: 0 20px 20px 20px; 
    }
    /* Quitamos los estilos 'sticky' del sidebar cuando está en el menú */
    #mobile-nav-links > .mobile-filters-section > .filters-sidebar {
        position: static;
        height: auto;
        max-height: none;
        box-shadow: none;
        padding: 0;
        border-radius: 0;
        flex: none; 
    }
    #mobile-nav-links .filters-container {
        overflow-y: visible; /* Quitamos el scroll interno */
        padding-right: 0;
    }
    
    /* Ocultamos el sidebar de filtros de ESCRITORIO (copia 2) */
     #filters-sidebar-desktop {
        display: none;
    }
    /* El layout principal pasa a ser de 1 columna */
    .desktop-filters-wrapper {
        display: block; 
    }


    /* 10.3. Ajustes de Layout (Móvil) */
    .main-container, .content-wrapper:not(.desktop-filters-wrapper) {
        padding: 15px;
    }
    .content-wrapper:not(.desktop-filters-wrapper) {
        flex-direction: column;
        padding-top: 15px;
    }
    
    /* Cabecera de productos (contador, orden) pasa a layout vertical */
    .products-header {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    .sort-options {
        flex-direction: column;
        align-items: stretch;
    }
    /* Ocultamos los botones de Grid/Lista */
    .sort-options .display-grid-btn, .sort-options .display-list-btn {
        display: none;
    }
    
    #catalogo-productos {
        gap: 15px;
    }
    
    #catalogo-productos.product-list .product-card {
        flex-direction: column;
        min-height: auto;
    }
     #catalogo-productos.product-list .product-image-container {
        flex: 0 0 auto;
        padding-bottom: 75%; /* Crea un aspect-ratio de 4:3 */
        height: auto;
    }
    #catalogo-productos.product-list .product-info {
        border-left: none;
        border-top: 1px solid var(--color-borde-claro);
    }

    /* 10.4. Ajustes de Carruseles (Móvil) */
    #mas-vendidos-carousel .swiper-slide {
        width: 85vw; /* Cada slide ocupa el 85% del ancho */
        min-height: auto;
        padding: 0;
    }
    #mas-vendidos-carousel .product-card {
        flex-direction: column; /* Pasa de horizontal a vertical */
        min-height: auto; 
    }
    #mas-vendidos-carousel .product-card .product-image-container {
        flex: 0 0 auto; 
        height: auto;
        padding-bottom: 75%; 
    }
    #mas-vendidos-carousel .product-card .product-info {
        border-left: none;
        border-top: 1px solid var(--color-borde-claro);
    }
    /* Apilamos el precio y el botón */
    #mas-vendidos-carousel .product-card .price-section {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    #mas-vendidos-carousel .product-card .add-to-cart-btn {
        width: 100%;
        text-align: center;
    }
    #mas-vendidos-carousel .product-card .price-container {
        flex-grow: 0;
        align-items: flex-start;
    }
    
    .swiper {
        padding: 20px 15px;
    }
    /* Ocultamos las flechas (se usa swipe) */
    .swiper-button-next, .swiper-button-prev {
        display: none !important;
    }

    /* 10.5. Ajustes de Footer (Móvil) */
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .footer-info {
        text-align: center;
    }
    .contact-item {
        justify-content: center;
    }
    .footer-logo {
        max-width: 300px;
    }
}

/* 10.6. Móviles más pequeños (Ancho menor a 500px) */
@media (max-width: 500px) {
    /* El catálogo pasa a una sola columna */
    #catalogo-productos {
        grid-template-columns: 1fr;
    }

    /* Los modales y menús ocupan casi toda la pantalla */
    .modal {
        width: 95vw;
        max-width: 95vw;
    }
    .modal-container {
        padding: 25px;
    }
    .cart-sidebar {
        max-width: 100vw;
    }
    .navbar-right {
        width: 100%;
    }

    /* Apilamos el precio y el botón en las tarjetas de producto
       para evitar que queden apretados. */
    .product-card .price-section {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    .product-card .add-to-cart-btn {
        width: 100%;
        text-align: center;
    }
    .product-card .price-container {
        flex-grow: 0;
        align-items: flex-start;
    }
}