:root {
    --blanco-puro: #ffffff;
    --blanco-fondo: #f4f7f6; /* Un gris muy sutil para que el blanco resalte */
    --celeste-uc: #0084c7; 
    --celeste-hover: #006ba1;
    --celeste-claro: #e6f4f9; /* Para fondos de botones secundarios */
    --texto-oscuro: #1a1f36;
    --texto-gris: #697386;
    --borde: #e3e8ee;
    --sombra-card: 0 4px 12px rgba(0, 0, 0, 0.05);
    --sombra-hover: 0 10px 20px rgba(0, 132, 199, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--blanco-fondo);
    color: var(--texto-oscuro);
    line-height: 1.5;
}

/* Header */
.main-header {
    background-color: var(--blanco-puro);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-bottom: 3px solid var(--celeste-uc); /* El toque de la franja */
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    height: 40px;
    width: auto;
}

.main-header h1 {
    color: var(--celeste-uc);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Botón Carrito Header */
.carrito-resumen {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    background-color: var(--celeste-claro);
    color: var(--celeste-uc);
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.carrito-resumen:hover {
    background-color: var(--celeste-uc);
    color: var(--blanco-puro);
}

.cart-icon {
    filter: invert(36%) sepia(85%) saturate(1838%) hue-rotate(180deg) brightness(93%) contrast(101%);
}

.carrito-resumen:hover .cart-icon {
    filter: brightness(0) invert(1);
}

/* Banner Hero */
.hero-banner {
    background: linear-gradient(rgba(0, 132, 199, 0.8), rgba(0, 107, 161, 0.9)), url('../assets/img/banner.jpg') center/cover no-repeat;
    color: var(--blanco-puro);
    text-align: center;
    padding: 4rem 2rem;
    margin-bottom: 3rem;
}

.hero-content h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.hero-content p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Catálogo */
.catalogo-wrapper {
    max-width: 1200px;
    margin: 0 auto 4rem auto;
    padding: 0 5%;
}

.categoria-seccion {
    margin-bottom: 4rem;
}

.titulo-categoria {
    font-size: 1.5rem;
    color: var(--texto-oscuro);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--borde);
    font-weight: 600;
}

.productos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 2rem;
}

/* Cards de Producto */
.producto-card {
    background: var(--blanco-puro);
    border: 1px solid var(--borde);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--sombra-card);
    display: flex;
    flex-direction: column;
}

.producto-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--sombra-hover);
    border-color: var(--celeste-uc);
}

.img-container {
    height: 220px;
    width: 100%;
    overflow: hidden;
    background-color: #f0f0f0; /* Color por si la imagen tarda en cargar */
}

.img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.producto-card:hover .img-container img {
    transform: scale(1.05);
}

.producto-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.producto-info h3 {
    font-size: 1.1rem;
    color: var(--texto-oscuro);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.precio {
    font-weight: 700;
    color: var(--celeste-uc);
    font-size: 1.3rem;
    margin-bottom: 0.2rem;
}

.stock-badge {
    font-size: 0.85rem;
    color: var(--texto-gris);
    margin-bottom: 1.5rem;
}

.btn-agregar-carrito {
    margin-top: auto;
    background-color: var(--blanco-puro);
    color: var(--celeste-uc);
    border: 2px solid var(--celeste-uc);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s;
}

.btn-agregar-carrito:hover {
    background-color: var(--celeste-uc);
    color: var(--blanco-puro);
}

/* Overlay fondo oscuro */
#overlay-carrito {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 150;
    backdrop-filter: blur(3px);
}

/* Modal del Carrito */
#carrito-view {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--blanco-puro);
    box-shadow: -5px 0 25px rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    z-index: 200;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

#carrito-view.oculto, #overlay-carrito.oculto {
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
}

#overlay-carrito {
    transform: none; /* Previene slide out del overlay, solo maneja opacity */
    transition: opacity 0.3s ease;
}

.carrito-header {
    background-color: var(--blanco-puro);
    color: var(--texto-oscuro);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--borde);
}

.carrito-header h2 {
    font-weight: 600;
    font-size: 1.2rem;
}

.btn-cerrar {
    background: var(--blanco-fondo);
    border: none;
    color: var(--texto-oscuro);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.btn-cerrar:hover {
    background: var(--borde);
}

.carrito-body {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.carrito-vacio {
    text-align: center;
    color: var(--texto-gris);
    margin-top: 2rem;
}

.carrito-item {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    border-bottom: 1px solid var(--borde);
    padding: 1rem 0;
}

.item-info h4 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.3rem;
}

.item-info p {
    color: var(--celeste-uc);
    font-weight: 600;
}

.item-controles {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.item-controles button {
    background: var(--blanco-fondo);
    border: 1px solid var(--borde);
    color: var(--texto-oscuro);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 6px;
    font-weight: bold;
    transition: all 0.2s;
}

.item-controles button:hover {
    background: var(--borde);
}

.btn-quitar {
    margin-left: auto;
    border: none !important;
    background: transparent !important;
    font-size: 1.2rem;
}

.btn-quitar:hover {
    transform: scale(1.1);
}

.carrito-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--borde);
    background: var(--blanco-puro);
}

.total-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    color: var(--texto-gris);
    margin-bottom: 1.5rem;
}

.precio-destacado {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--texto-oscuro);
}

.btn-whatsapp {
    width: 100%;
    background-color: #25D366; 
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.3s, transform 0.1s;
}

.btn-whatsapp:hover {
    background-color: #1ebe5d;
}

.btn-whatsapp:active {
    transform: scale(0.98);
}

/* Responsividad para móviles */
@media (max-width: 600px) {
    .main-header {
        padding: 1rem;
    }
    .hero-banner {
        padding: 3rem 1rem;
    }
    .hero-content h2 {
        font-size: 1.8rem;
    }
    .productos-grid {
        grid-template-columns: 1fr; /* Una columna en teléfonos */
    }
}