/**
 * Estilos Principales - IntelPack E-commerce
 * Diseño corporativo profesional y responsive
 * Colores: Teal #003E51 (logo "Pack") · Rojo #BE2413 (logo "Inte")
 */

/* ===== RESET Y BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', 'Open Sans', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-primary);
    background-color: #FFFFFF;
    overflow-x: hidden;
}

img, svg, video {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===== VARIABLES CSS ===== */
:root {
    /* Colores Corporativos — extraídos directamente del logo IntelPack */
    --color-primary: #003E51;        /* Teal profundo — "Pack" del logo */
    --color-secondary: #002A36;      /* Teal más oscuro para gradientes */
    --color-accent: #BE2413;         /* Rojo marca — "Inte" del logo */
    --color-accent-light: #9E1E0F;   /* Rojo oscuro para hover */
    --color-white: #FFFFFF;
    --color-light-gray: #EEF3F5;     /* Teal muy claro — fondo secciones */
    --color-dark-gray: #6C757D;      /* Gris medio para textos secundarios */
    --color-border: #DDE4EA;         /* Borde sutil con tinte teal */
    --color-error: #DC3545;
    --color-warning: #FFC107;
    --color-success: #28A745;
    
    /* Tipografía */
    --font-size-small: 14px;
    --font-size-base: 16px;
    --font-size-large: 18px;
    --font-size-h1: 32px;
    --font-size-h2: 28px;
    --font-size-h3: 24px;
    --font-size-h4: 20px;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Sombras */
    --shadow-light: 0 2px 4px rgba(0, 62, 81, 0.1);
    --shadow-medium: 0 4px 8px rgba(0, 62, 81, 0.15);
    --shadow-heavy: 0 8px 16px rgba(0, 62, 81, 0.2);
    --shadow-gold: 0 2px 10px rgba(190, 36, 19, 0.28);
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Bordes */
    --border-radius: 8px;
    --border-radius-small: 4px;
    --border-radius-large: 12px;
}

/* ===== TIPOGRAFÍA ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
    overflow-wrap: anywhere;
    hyphens: auto;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* ===== LAYOUT PRINCIPAL ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-sm);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -var(--spacing-xs);
}

.col {
    flex: 1;
    padding: 0 var(--spacing-xs);
}

/* ===== HEADER Y NAVEGACIÓN ===== */
.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-medium);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo .nav-logo {
    max-height: 48px;
    height: auto;
    width: auto;
    display: inline-block;
    object-fit: contain;
    vertical-align: middle;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.18));
}

@media (max-width: 768px) {
    .logo .nav-logo {
        height: auto;
        max-height: 44px;
        width: auto;
    }
}

@media (max-width: 1024px) {
    .mobile-menu-toggle {
        display: block;
    }
    .nav-menu {
        display: none;
    }
    .logo .nav-logo {
        max-height: 48px;
        height: auto;
        width: auto;
    }
    .navbar {
        padding: var(--spacing-sm) 0;
    }
}

@media (max-width: 1280px) {
    .mobile-menu-toggle {
        display: block;
    }
    .nav-menu {
        display: none;
    }
    .logo .nav-logo {
        max-height: 48px;
        height: auto;
        width: auto;
    }
    .navbar {
        padding: var(--spacing-sm) 0;
    }
}

@media (max-width: 480px) {
    .logo .nav-logo {
        max-height: 32px;
        height: auto;
        width: auto;
    }
}

.logo .logo-text {
    line-height: 1;
}

.logo:hover {
    color: var(--color-accent);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-menu li a {
    color: var(--color-secondary);
    font-weight: 700;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-small);
    transition: all var(--transition-fast);
}

.nav-menu li a:hover {
    background-color: var(--color-light-gray);
    color: var(--color-primary);
    text-decoration: none;
}

.nav-menu li a.active {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 62, 81, 0.35);
    font-weight: 700;
}

.nav-menu li a.active:hover {
    background-color: var(--color-secondary);
    color: var(--color-white);
    text-decoration: none;
}

.cart-icon {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-large);
    background: transparent;
    transition: all var(--transition-medium);
    text-decoration: none;
    cursor: pointer;
    min-width: 100px;
    justify-content: center;
    border: none;
}

.cart-icon:hover {
    background: transparent;
    color: var(--color-accent);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: none;
}

.cart-icon:hover i {
    color: var(--color-accent);
}

.cart-icon:hover span:not(.cart-count) {
    color: var(--color-accent);
}

.cart-icon:active {
    transform: translateY(0);
    box-shadow: none;
    color: var(--color-accent-light);
}

.cart-icon i {
    font-size: 1.3rem; /* igual que móvil */
    color: var(--color-primary);
    transition: color var(--transition-medium);
}

.cart-icon span:not(.cart-count) {
    font-size: var(--font-size-small); /* igual que móvil */
    font-weight: 600;
    color: var(--color-primary);
    transition: color var(--transition-medium);
}

.cart-count {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-radius: 9999px;
    min-width: 24px;
    height: 24px;
    padding: 0 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    position: static;
    margin-left: 0; /* eliminar espacio innecesario */
    border: 2px solid var(--color-white);
    box-shadow: var(--shadow-gold);
    flex-shrink: 0;
}

/* Agrupa ícono y contador sin separación */
.cart-group {
    display: inline-flex;
    align-items: center;
    gap: 0; /* sin separación entre ícono y contador */
}

/* ===== MENÚ MÓVIL ===== */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle:hover {
    color: var(--color-accent);
}

/* Menú móvil desplegable */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    box-shadow: var(--shadow-medium);
    border-top: 1px solid var(--color-border);
    z-index: 1000;
}

.mobile-menu.open {
    display: block;
}

.mobile-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu li {
    border-bottom: 1px solid var(--color-border);
}

.mobile-menu li:last-child {
    border-bottom: none;
}

.mobile-menu a {
    display: block;
    padding: var(--spacing-md);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 700;
    transition: all var(--transition-fast);
}

.mobile-menu a:hover,
.mobile-menu a.active {
    background-color: var(--color-light-gray);
    color: var(--color-accent);
    text-decoration: none;
}

/* ===== WHATSAPP BUBBLE ===== */
.whatsapp-bubble{position:fixed;right:18px;bottom:18px;z-index:1100;display:flex;align-items:center;justify-content:center;width:56px;height:56px;background:#25D366;color:#fff;border:1px solid #1faa54;border-radius:50%;text-decoration:none;box-shadow:0 2px 6px rgba(0,0,0,.2)}
.whatsapp-bubble:focus{outline:2px solid #0a7f2c;outline-offset:2px}
.whatsapp-bubble:hover{background:#1ebe5d}
.whatsapp-bubble .wa-icon{font-size:26px;line-height:1}
.whatsapp-bubble .wa-text{display:none}

/* ===== FOOTER UNIFORME Y CENTRADO ===== */
.footer{background:var(--color-white);padding:var(--spacing-xl) 0;border-top:1px solid var(--color-border)}
.footer-container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-xl)}
.footer-content{display:grid;grid-template-columns:repeat(4,minmax(240px,1fr));gap:var(--spacing-xl);align-items:start;justify-items:stretch;text-align:left;margin-bottom:var(--spacing-xl)}
.footer-section{margin:var(--spacing-sm) 0}
.footer-logo{margin-bottom:var(--spacing-sm)}
.footer-logo-image{max-height:54px;margin:0 auto;display:block}
.footer-description{margin:var(--spacing-sm) 0;color:var(--color-dark-gray)}
.footer-social{display:flex;gap:var(--spacing-sm);justify-content:center;margin:var(--spacing-sm) 0}
.footer-title{margin:var(--spacing-sm) 0;font-weight:700;color:var(--color-primary)}
.footer-links{list-style:none;padding:0;margin:var(--spacing-sm) 0;display:flex;flex-direction:column;gap:6px}
.footer-links a{color:var(--color-secondary);text-decoration:none}
.footer-links a:hover{color:var(--color-accent)}
.footer .footer-links{text-align:left;margin-top:var(--spacing-sm);margin-right:0;margin-bottom:var(--spacing-sm);margin-left:min(25%,280px);max-width:720px}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin:var(--spacing-sm) 0;text-align:left;margin-left:min(25%,280px);max-width:720px}
.contact-item{display:flex;align-items:center;gap:8px;justify-content:flex-start;color:var(--color-secondary);text-align:left;padding:var(--spacing-xs) 0}
.footer-contact .contact-item span{line-height:1.5}
.footer-divider{height:1px;background:var(--color-border);margin:var(--spacing-lg) auto;width:100%}
.footer-bottom{display:flex;flex-wrap:wrap;gap:var(--spacing-md);justify-content:center;align-items:center;text-align:center;margin:var(--spacing-md) 0}
.footer-legal{display:flex;gap:var(--spacing-md);justify-content:center}
.footer-legal a{color:var(--color-secondary)}
.footer-legal a:hover{color:var(--color-accent)}

@media (max-width:1024px){
  .footer-content{grid-template-columns:repeat(2,minmax(260px,1fr));}
  .footer-contact{margin-left:12%}
  .footer .footer-links{margin-left:12%}
}
@media (min-width:1280px){
  .footer-contact{margin-left:20%;max-width:760px}
  .footer .footer-links{margin-left:20%;max-width:760px}
}
@media (max-width:768px){
  .footer-content{grid-template-columns:1fr;gap:var(--spacing-lg)}
  .footer-container{padding:0 var(--spacing-lg)}
  .footer-contact{margin-left:0;padding-left:var(--spacing-sm)}
  .footer .footer-links{margin-left:0;padding-left:var(--spacing-sm)}
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
    }
    
    .cart-icon {
        min-width: 100px;
        padding: var(--spacing-xs) var(--spacing-sm);
        gap: var(--spacing-xs);
        background: transparent;
    }
    
    .cart-icon span:not(.cart-count) {
        font-size: var(--font-size-small);
    }
    
    .cart-icon i {
        font-size: 1.3rem;
        color: var(--color-primary);
    }
    
    .cart-count {
        width: 20px;
        height: 20px;
        font-size: 11px;
        margin-left: 0; /* eliminar espacio en mobile también */
    }
}

/* ===== BANNER PRINCIPAL ===== */
.hero-banner {
    height: 70vh;
    min-height: 500px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 80px rgba(0, 62, 81, 0.25);
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://trae-api-us.mchost.guru/api/ide/v1/text_to_image?prompt=professional%20packaging%20containers%20glass%20jars%20bottles%20modern%20industrial%20clean%20background&image_size=landscape_16_9') center/cover;
    opacity: 0.3;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: var(--spacing-xl);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.hero-subtitle {
    font-size: var(--font-size-large);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    color: var(--color-light-gray);
}

/* ===== BOTONES ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    background-color: var(--color-accent-light);
    box-shadow: var(--shadow-heavy);
    transform: translateY(-2px);
    text-decoration: none;
    color: var(--color-white);
}

.btn-secondary {
    background-color: var(--color-light-gray);
    color: var(--color-primary);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}

.btn-outline:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
    text-decoration: none;
    box-shadow: var(--shadow-gold);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-small);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-large);
}

/* Estados de botones para feedback visual */
.btn.loading {
    opacity: 0.8;
    cursor: not-allowed;
    pointer-events: none;
}

.btn.loading i.fa-spinner {
    animation: spin 1s linear infinite;
}

.btn.success {
    background-color: var(--color-success) !important;
    color: var(--color-white) !important;
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

.btn.success:hover {
    background-color: var(--color-success) !important;
    transform: none;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Estilos para área clickeable del producto */
.product-clickable-area {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.product-clickable-area:hover {
    opacity: 0.95;
}

/* ===== CARDS DE PRODUCTOS ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    align-items: stretch;
}

.product-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    overflow: hidden;
    transition: all var(--transition-medium);
    position: relative;
    border: 1px solid var(--color-border);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-gold);
    border-color: var(--color-accent);
}

.product-clickable-area {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    height: 100%;
}

.product-clickable-area:hover {
    text-decoration: none;
    color: inherit;
}

.product-image {
    width: 100%;
    aspect-ratio: 1120 / 800;
    height: auto;
    object-fit: contain;
    background-color: var(--color-light-gray);
    display: block;
    flex-shrink: 0;
}

.product-info {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-bottom {
    margin-top: auto;
    padding-top: var(--spacing-sm);
}

.product-category {
    font-size: var(--font-size-small);
    color: var(--color-dark-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    min-height: 1.2em;
    display: flex;
    align-items: center;
}

.product-title {
    font-size: var(--font-size-large);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
    line-height: 1.3;
    min-height: 2.6em;
    display: flex;
    align-items: flex-start;
}

.product-description {
    font-size: var(--font-size-small);
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    flex-grow: 1;
}

.product-specs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    min-height: 1.5em;
}

.product-spec {
    background-color: #EEF3F5;
    border: 1px solid #DDE4EA;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-small);
    font-size: var(--font-size-small);
    color: var(--color-primary);
    font-weight: 500;
}

.product-price {
    font-size: var(--font-size-h4);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    min-height: 1.5em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    margin-top: var(--spacing-xs);
    padding-top: var(--spacing-sm);
    justify-content: center;
}

.product-price span,
.product-price i {
    color: var(--color-primary) !important;
}



/* ===== SECCIONES ===== */
.section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    border-radius: 2px;
}

/* ===== CATEGORÍAS ===== */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.category-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-medium);
    text-decoration: none;
    color: inherit;
    border: 3px solid var(--color-border);
    word-break: break-word;
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold);
    text-decoration: none;
    color: inherit;
    border-color: var(--color-accent);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
    text-shadow: 0 2px 6px rgba(190, 36, 19, 0.22);
}

.category-name {
    font-size: var(--font-size-h3);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}
.category-description {
    font-size: var(--font-size-small);
    overflow-wrap: anywhere;
}
.category-description {
    font-size: var(--font-size-small);
}

.category-count {
    font-size: var(--font-size-small);
    color: var(--color-dark-gray);
}

/* ===== FORMULARIOS ===== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-primary);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 62, 81, 0.12);
}

.form-control.error {
    border-color: var(--color-error);
}

.form-error {
    color: var(--color-error);
    font-size: var(--font-size-small);
    margin-top: var(--spacing-xs);
}

/* ===== CARRITO ===== */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background-color: var(--color-white);
    box-shadow: var(--shadow-heavy);
    z-index: 2000;
    transition: right var(--transition-medium);
    overflow-y: auto;
}

.cart-sidebar.open {
    right: 0;
}

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

.cart-items {
    padding: var(--spacing-md);
}

.cart-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-light-gray);
}

.cart-item-image {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--border-radius-small);
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.cart-item-price {
    color: var(--color-accent);
    font-weight: 600;
}

.cart-total {
    padding: var(--spacing-lg);
    border-top: 2px solid var(--color-border);
    background-color: var(--color-light-gray);
}

/* ===== FOOTER ===== */
.footer {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: auto;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
}

/* Footer full-width wrapper */
.footer-container {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.footer-section p,
.footer-section a {
    color: var(--color-light-gray);
    margin-bottom: var(--spacing-xs);
}

.footer-section a:hover {
    color: var(--color-accent);
    text-decoration: none;
    text-shadow: 0 0 8px rgba(190, 36, 19, 0.38);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-secondary);
    color: var(--color-light-gray);
}

/* ===== UTILIDADES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* ===== RESPONSIVE DESIGN ===== */

/* Desktop large */
@media (min-width: 1280px) {
    .container { max-width: 1280px; }
    .products-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--spacing-lg); }
    .categories-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
}

/* Desktop xl */
@media (min-width: 1536px) {
    .container { max-width: 1400px; }
}

/* Benefit rows — stack at ≤600px so cards don't get squeezed */
@media (max-width: 600px) {
    .row .col {
        flex: 0 0 100%;
        min-width: 0;
    }
}

/* Tablets */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-banner {
        height: 50vh;
        min-height: 300px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-md);
        align-items: stretch;
    }
    
    .product-card {
        min-height: 400px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .cart-sidebar {
        width: 100vw;
        right: -100vw;
    }
}

/* Móviles */
@media (max-width: 480px) {
    :root {
        --font-size-h1: 24px;
        --font-size-h2: 22px;
        --font-size-h3: 20px;
        --font-size-h4: 18px;
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .navbar {
        padding: var(--spacing-xs) 0;
    }
    
    .hero-banner {
        height: 40vh;
        min-height: 250px;
    }
    
    .hero-content {
        padding: var(--spacing-lg);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        align-items: stretch;
    }
    
    .product-card {
        margin-bottom: var(--spacing-sm);
        min-height: 380px;
    }
    
    .product-image {
        aspect-ratio: 1120 / 800;
        height: auto;
        object-fit: contain;
    }
    
    .product-title {
        font-size: var(--font-size-h4);
        min-height: 2.4em;
    }
    
    .product-description {
        font-size: var(--font-size-small);
        line-height: 1.4;
    }
    
    .product-price {
        font-size: var(--font-size-h4);
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* ===== ANIMACIONES ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.4s ease-out;
}

/* ===== ESTADOS DE CARGA ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    border: 3px solid var(--color-light-gray);
    border-top: 3px solid var(--color-accent);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== ACCESIBILIDAD ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus visible para navegación por teclado */
.btn:focus-visible,
.form-control:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ===== FOOTER ===== */
.footer {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.footer-logo i {
    color: var(--color-accent);
    font-size: 1.5em;
}
.footer-logo-image {
    display: inline-block;
    vertical-align: middle;
    height: 1.2em;
    width: auto;
    object-fit: contain;
}
@media (max-width: 768px) {
    .footer-logo-image {
        height: 1.1em;
    }
    .footer-logo {
        justify-content: center;
    }
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.footer-title {
    color: var(--color-accent);
    font-size: var(--font-size-large);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: var(--spacing-xs);
    display: inline-block;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    padding: var(--spacing-xs) 0;
}

.footer-links a:hover {
    color: var(--color-accent);
    transform: translateX(5px);
    text-decoration: none;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--color-white);
    text-decoration: none;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.social-link:hover {
    background: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(190, 36, 19, 0.35);
    text-decoration: none;
}

/* Instagram hover brand color */
.social-link[aria-label="Instagram"]:hover {
    background: rgba(193, 53, 132, 0.15);
}
.social-link[aria-label="Instagram"]:hover i {
    color: #C13584;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-xs) 0;
}

.contact-item i {
    color: var(--color-accent);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.footer-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    margin: var(--spacing-lg) 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer .container {
    max-width: none;
    width: 100%;
    margin: 0;
    padding-left: 0;
    padding-right: 0;
}

.footer { padding-bottom: 0; }
.footer-divider { margin-bottom: 0; }

.footer-copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-small);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: var(--font-size-small);
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--color-accent);
    text-decoration: none;
}

/* Botón Volver Arriba */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow-heavy);
    transition: all var(--transition-fast);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-accent-light);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(190, 36, 19, 0.35);
}

/* Responsive Footer */
@media (max-width: 768px) {
    .footer {
        padding: var(--spacing-lg) 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .footer-legal {
        justify-content: center;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .footer-content {
        gap: var(--spacing-md);
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .header,
    .footer,
    .cart-sidebar,
    .btn,
    .back-to-top {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}

/* ===== ESTILOS DE PRECIOS CON OFERTA ===== */
.price-container {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.price-list {
    font-size: 0.9em;
    color: var(--color-dark-gray);
    text-decoration: line-through;
    opacity: 0.7;
}

.price-offer {
    font-size: 1.1em;
    font-weight: bold;
    color: var(--color-success);
}

.price-effective {
    font-size: 1em;
    font-weight: 600;
    color: var(--color-primary);
}

.discount-badge {
    background-color: var(--color-success);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-small);
    font-size: 0.8em;
    font-weight: bold;
    display: inline-block;
    margin-left: 0.5rem;
}

/* Estilos para la tabla de productos */
table .price-list {
    font-size: 0.85em;
}

table .price-offer {
    font-size: 1em;
}

table .discount-badge {
    margin-left: 0;
    margin-top: 0.25rem;
}

/* Estilos para cards móviles */
.product-card-detail .price-list {
    font-size: 0.85em;
}

.product-card-detail .price-offer {
    font-size: 1em;
}

/* Animación para precios con oferta */
@keyframes pulse-discount {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.discount-badge {
    animation: pulse-discount 2s infinite;
}