/* =================================================================
   VARIABLES CSS Y CONFIGURACIÓN BASE
   ================================================================= */
:root {
    /* Colores principales */
    --primary-dark: #1a1a2e;
    --secondary-dark: #16213e;
    --accent-purple: #7209b7;
    --accent-cyan: #2d82b7;
    --text-light: #e8e9ea;
    --text-muted: #b0b3b8;
    --success-green: #42b883;
    --warning-orange: #ff6b35;
    --danger-red: #e74c3c;
    
    /* Efectos de cristal */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-bg-strong: rgba(255, 255, 255, 0.15);
    
    /* Sombras */
    --shadow-dark: rgba(0, 0, 0, 0.3);
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.5);
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    --gradient-dark: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
    --gradient-overlay: linear-gradient(135deg, rgba(114, 9, 183, 0.8), rgba(45, 130, 183, 0.8));
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    
    /* Transiciones */
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Tamaños de fuente */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 1.875rem;
    --font-4xl: 2.25rem;
    
    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 1000;
    --z-toast: 1100;
    
    /* Breakpoints para media queries */
    --bp-sm: 480px;
    --bp-md: 768px;
    --bp-lg: 1024px;
    --bp-xl: 1200px;
    --bp-2xl: 1400px;
    
    /* Tamaño mínimo de touch targets */
    --min-touch-target: 44px;
}

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

*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    font-size: var(--font-base);
    line-height: 1.6;
    color: var(--text-light);
    background: var(--gradient-dark);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Elementos de 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 */
:focus-visible {
    outline: 2px solid var(--accent-purple);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* =================================================================
   HEADER Y NAVEGACIÓN
   ================================================================= */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px var(--shadow-dark);
}

.nav-container {
    max-width: var(--bp-2xl);
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-light);
    font-size: var(--font-xl);
    font-weight: 700;
    transition: var(--transition-smooth);
}

.logo:hover {
    transform: scale(1.05);
}

.logo i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-2xl);
}

/* Navegación desktop */
.nav-desktop {
    display: flex;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
    min-height: var(--min-touch-target);
    position: relative;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-menu a:hover {
    color: var(--text-light);
    background: var(--glass-bg);
    transform: translateY(-2px);
}

.nav-menu a:hover::before {
    width: 80%;
}

/* Badge del carrito */
.cart-badge {
    background: var(--gradient-primary);
    color: white;
    font-size: var(--font-xs);
    font-weight: 700;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 50px;
    min-width: 20px;
    text-align: center;
    margin-left: var(--spacing-xs);
    animation: pulse 2s infinite;
}

/* Botón menú móvil */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: var(--min-touch-target);
    height: var(--min-touch-target);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
    position: relative;
}

.mobile-menu-toggle:hover {
    background: var(--glass-bg);
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--text-light);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: 2px;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Navegación móvil */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: none;
}

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

.mobile-nav-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--shadow-strong);
    backdrop-filter: blur(5px);
    opacity: 0;
    animation: fadeIn 0.3s ease forwards;
}

.mobile-nav-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    max-width: 85vw;
    height: 100%;
    background: var(--primary-dark);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--glass-border);
    box-shadow: -10px 0 40px var(--shadow-dark);
    transform: translateX(100%);
    animation: slideInRight 0.3s ease forwards;
    display: flex;
    flex-direction: column;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--gradient-primary);
    border-bottom: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.mobile-nav-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    font-weight: 700;
    font-size: var(--font-lg);
}

.mobile-nav-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--min-touch-target);
    height: var(--min-touch-target);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.mobile-nav-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.mobile-nav-menu {
    flex: 1;
    list-style: none;
    padding: var(--spacing-lg) 0;
    margin: 0;
    background: var(--primary-dark);
    overflow-y: auto;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: var(--transition-smooth);
    min-height: var(--min-touch-target);
    position: relative;
}

.mobile-nav-link:hover {
    background: var(--glass-bg);
    color: white;
}

.mobile-nav-link i {
    width: 20px;
    text-align: center;
}

.mobile-nav-divider {
    height: 1px;
    background: var(--glass-border);
    margin: var(--spacing-md) var(--spacing-lg);
}

.cart-badge-mobile {
    background: var(--gradient-primary);
    color: white;
    font-size: var(--font-xs);
    font-weight: 700;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 50px;
    min-width: 20px;
    text-align: center;
    margin-left: auto;
}

.whatsapp-link {
    background: var(--success-green) !important;
    color: white !important;
    margin: var(--spacing-md);
    border-radius: var(--radius-md);
}

/* =================================================================
   CONTENEDOR PRINCIPAL
   ================================================================= */
.container {
    max-width: var(--bp-2xl);
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* =================================================================
   SECCIÓN HERO
   ================================================================= */
.hero {
    text-align: center;
    padding: var(--spacing-3xl) 0;
    margin-bottom: var(--spacing-3xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(114, 9, 183, 0.1), transparent);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-hero {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-lg);
    min-width: 180px;
}

/* =================================================================
   BOTONES
   ================================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    min-height: var(--min-touch-target);
    position: relative;
    overflow: hidden;
    user-select: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(114, 9, 183, 0.4);
}

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

.btn-outline:hover {
    background: var(--glass-bg);
    border-color: var(--accent-purple);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background: linear-gradient(45deg, var(--success-green), #34c759);
    color: white;
}

.btn-whatsapp:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(66, 184, 131, 0.4);
}

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

/* =================================================================
   FILTROS
   ================================================================= */
.filters {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
    box-shadow: 0 8px 32px var(--shadow-dark);
}

.filters-title {
    text-align: center;
    font-size: var(--font-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-light);
}

.desktop-filters {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.mobile-filters {
    display: none;
}

.filter-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--glass-border);
    background: transparent;
    border-radius: 50px;
    color: var(--text-muted);
    font-weight: 600;
    font-size: var(--font-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    white-space: nowrap;
    min-height: var(--min-touch-target);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.filter-btn:hover::before {
    left: 100%;
}

.filter-btn:hover {
    border-color: var(--accent-purple);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(114, 9, 183, 0.3);
}

.filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(114, 9, 183, 0.4);
}

.filter-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    color: var(--text-light);
    font-size: var(--font-base);
    font-weight: 500;
    min-height: var(--min-touch-target);
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 2px rgba(114, 9, 183, 0.25);
}

/* =================================================================
   PRODUCTOS
   ================================================================= */
.products-section {
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    text-align: center;
    font-size: var(--font-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--text-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.product-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: 0 4px 20px var(--shadow-dark);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(114, 9, 183, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.product-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: var(--accent-purple);
}

.product-card:hover::before {
    opacity: 1;
}

.product-image-container {
    width: 100%;
    height: 240px;
    position: relative;
    overflow: hidden;
    background: var(--secondary-dark);
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image {
    transform: scale(1.1);
}

.out-of-stock-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: var(--font-lg);
}

.product-info {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    position: relative;
    z-index: 1;
}

.product-title {
    font-size: var(--font-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
    line-height: 1.3;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.product-description {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
    font-size: var(--font-sm);
    flex-grow: 1;
}

.product-price {
    font-size: var(--font-2xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-lg);
}

.product-actions {
    display: flex;
    gap: var(--spacing-md);
}

.btn-add-cart {
    flex: 1;
    background: var(--gradient-primary);
    color: white;
}

.btn-add-cart:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(114, 9, 183, 0.4);
}

.btn-add-cart:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

/* =================================================================
   BADGES
   ================================================================= */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 50px;
    font-size: var(--font-xs);
    font-weight: 700;
    background: var(--gradient-primary);
    color: white;
    gap: var(--spacing-xs);
    box-shadow: 0 2px 8px rgba(114, 9, 183, 0.3);
}

.badge.hot {
    background: linear-gradient(45deg, var(--warning-orange), #ff8c42);
}

.badge.new {
    background: linear-gradient(45deg, var(--success-green), #34c759);
}

/* =================================================================
   ESTADOS DE CARGA Y VACÍO
   ================================================================= */
.loading-state {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-muted);
}

.loading-spinner {
    font-size: var(--font-3xl);
    margin-bottom: var(--spacing-lg);
    color: var(--accent-purple);
}

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

.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
}

.empty-state-content {
    max-width: 400px;
    margin: 0 auto;
    color: var(--text-muted);
}

.empty-state-content i {
    font-size: var(--font-3xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state-content h3 {
    font-size: var(--font-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

/* =================================================================
   CARRITO LATERAL
   ================================================================= */
.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--shadow-strong);
    backdrop-filter: blur(5px);
    display: none;
    z-index: var(--z-modal);
    transition: opacity 0.3s ease;
}

.cart-overlay.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

.cart-sidebar {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 420px;
    height: 100vh;
    background: var(--primary-dark);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--glass-border);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: calc(var(--z-modal) + 1);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 40px var(--shadow-dark);
}

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

.cart-header {
    padding: var(--spacing-lg);
    background: var(--gradient-primary);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1;
    backdrop-filter: blur(20px);
}

.cart-title {
    font-size: var(--font-xl);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.cart-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: var(--font-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--min-touch-target);
    height: var(--min-touch-target);
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
}

.cart-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.cart-content {
    flex: 1;
    overflow-y: auto;
}

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

.cart-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--glass-border);
    animation: slideIn 0.3s ease;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: var(--secondary-dark);
    flex-shrink: 0;
}

.cart-item-info {
    flex: 1;
    min-width: 0;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-base);
    color: var(--text-light);
    word-wrap: break-word;
}

.cart-item-price {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    font-size: var(--font-lg);
}

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.qty-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--text-light);
    transition: var(--transition-smooth);
}

.qty-btn:hover {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    transform: scale(1.1);
    color: white;
}

.qty-value {
    min-width: 40px;
    text-align: center;
    font-weight: 600;
    color: var(--text-light);
}

.cart-remove {
    background: var(--danger-red);
    color: white;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.cart-remove:hover {
    background: #c0392b;
    transform: scale(1.1);
}

.cart-empty {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    color: var(--text-muted);
}

.cart-empty i {
    font-size: var(--font-3xl);
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.cart-empty h3 {
    font-size: var(--font-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

.cart-empty p {
    font-size: var(--font-sm);
    opacity: 0.7;
}

.cart-footer {
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    position: sticky;
    bottom: 0;
}

.cart-total-section {
    margin-bottom: var(--spacing-lg);
}

.cart-total-amount {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--text-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-total-label {
    font-weight: 500;
    color: var(--text-muted);
}

.cart-total-value {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cart-actions {
    display: flex;
    gap: var(--spacing-md);
}

.cart-checkout {
    flex: 2;
    background: var(--success-green);
    color: white;
    border: none;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 700;
    cursor: pointer;
    font-size: var(--font-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: var(--transition-smooth);
    min-height: 48px;
    font-family: inherit;
}

.cart-checkout:hover {
    background: #359268;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(66, 184, 131, 0.4);
}

.cart-clear {
    background: var(--danger-red);
    color: white;
    border: none;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    font-size: var(--font-base);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    min-height: 48px;
    flex: 1;
    font-family: inherit;
}

.cart-clear:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

/* =================================================================
   CONTACTO
   ================================================================= */
.contact-section {
    margin-bottom: var(--spacing-3xl);
}

.contact-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: var(--spacing-3xl) var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: 0 8px 32px var(--shadow-dark);
}

.contact-card h2 {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-2xl);
    font-weight: 700;
}

.contact-card p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-lg);
}

.contact-actions {
    margin-bottom: var(--spacing-xl);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: var(--text-muted);
    font-size: var(--font-sm);
}

.contact-item i {
    color: var(--accent-purple);
    font-size: var(--font-base);
}

/* =================================================================
   WHATSAPP FLOTANTE
   ================================================================= */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    background: var(--success-green);
    color: white;
    border-radius: 50%;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-2xl);
    text-decoration: none;
    box-shadow: 0 8px 25px rgba(66, 184, 131, 0.4);
    z-index: var(--z-dropdown);
    transition: var(--transition-smooth);
    animation: pulse 2s infinite;
    overflow: visible;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background: #359268;
}

.whatsapp-tooltip {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: var(--primary-dark);
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition-smooth);
    pointer-events: none;
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 15px var(--shadow-dark);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateY(0);
}

/* =================================================================
   SCROLL TO TOP
   ================================================================= */
.scroll-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    left: var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

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

.scroll-to-top:hover {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    transform: translateY(-2px);
}

/* =================================================================
   NOTIFICACIONES
   ================================================================= */
.notification {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 32px var(--shadow-dark);
    z-index: var(--z-toast);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 90%;
    animation: slideUp 0.4s ease;
}

.notification.success {
    border-color: var(--success-green);
}

.notification.success i {
    color: var(--success-green);
}

.notification.error {
    border-color: var(--danger-red);
}

.notification.error i {
    color: var(--danger-red);
}

.notification.warning {
    border-color: var(--warning-orange);
}

.notification.warning i {
    color: var(--warning-orange);
}

.notification.info {
    border-color: var(--accent-cyan);
}

.notification.info i {
    color: var(--accent-cyan);
}

/* =================================================================
   ANIMACIONES
   ================================================================= */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateX(20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@keyframes slideUp {
    from { 
        opacity: 0; 
        transform: translateX(-50%) translateY(100px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(-50%) translateY(0); 
    }
}

@keyframes slideDown {
    from { 
        opacity: 1; 
        transform: translateX(-50%) translateY(0); 
    }
    to { 
        opacity: 0; 
        transform: translateX(-50%) translateY(100px); 
    }
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

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

/* Tablets medianas */
@media (max-width: 1024px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
        margin-bottom: var(--spacing-xl);
    }
    
    .filters {
        padding: var(--spacing-lg);
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-lg);
    }
}

/* Tablets y móviles grandes */
@media (max-width: 768px) {
    /* Navegación */
    .nav-desktop {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Contenedor */
    .container {
        padding: var(--spacing-md);
    }
    
    /* Hero */
    .hero {
        padding: var(--spacing-xl) 0;
        margin-bottom: var(--spacing-xl);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-hero {
        width: 100%;
        max-width: 280px;
    }
    
    /* Filtros */
    .desktop-filters {
        display: none;
    }
    
    .mobile-filters {
        display: block;
    }
    
    .filters {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-xl);
    }
    
    /* Productos */
    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .product-image-container {
        height: 200px;
    }
    
    .product-info {
        padding: var(--spacing-md);
    }
    
    .product-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    /* Carrito móvil */
    .cart-sidebar {
        width: 100vw;
        max-width: 100vw;
        right: -100vw;
    }
    
    .cart-sidebar.open {
        right: 0;
    }
    
    .cart-header {
        padding: var(--spacing-md);
    }
    
    .cart-items {
        padding: var(--spacing-md);
    }
    
    .cart-item {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .cart-item img {
        width: 60px;
        height: 60px;
    }
    
    .cart-item-quantity {
        margin-top: var(--spacing-sm);
    }
    
    .cart-footer {
        padding: var(--spacing-md);
    }
    
    .cart-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    /* Contacto */
    .contact-card {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* WhatsApp flotante */
    .whatsapp-float {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 56px;
        height: 56px;
        font-size: var(--font-xl);
    }
    
    .whatsapp-tooltip {
        display: none;
    }
    
    /* Scroll to top */
    .scroll-to-top {
        bottom: 120px;
        left: var(--spacing-md);
        width: 44px;
        height: 44px;
    }
}

/* Móviles pequeños - Menú específico */
@media (max-width: 480px) {
    .mobile-nav-content {
        width: 100vw;
        max-width: none;
        min-width: auto;
        border-left: none;
        border-radius: 0;
    }
    
    .mobile-nav-header {
        padding: var(--spacing-md);
        min-height: 60px;
    }
    
    .mobile-nav-title {
        font-size: var(--font-base);
    }
    
    .mobile-nav-menu {
        padding: var(--spacing-md) 0;
    }
    
    .mobile-nav-link {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-base);
        min-height: 56px;
    }
}

/* Móviles muy pequeños */
@media (max-width: 360px) {
    .mobile-nav-content {
        width: 100vw;
    }
    
    .mobile-nav-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .mobile-nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* =================================================================
   MEJORAS DE ACCESIBILIDAD
   ================================================================= */

/* Reducir movimiento para usuarios sensibles */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .whatsapp-float {
        animation: none;
    }
    
    .cart-badge {
        animation: none;
    }
}

/* Modo de alto contraste */
@media (prefers-contrast: high) {
    :root {
        --glass-bg: rgba(255, 255, 255, 0.3);
        --glass-border: rgba(255, 255, 255, 0.6);
        --text-muted: #c0c0c0;
    }
    
    .product-card,
    .cart-sidebar,
    .filters,
    .contact-card {
        border-width: 2px;
    }
}

/* Tema oscuro del sistema */
@media (prefers-color-scheme: dark) {
    /* Ya estamos en tema oscuro por defecto */
}

/* Modo de datos reducidos */
@media (prefers-reduced-data: reduce) {
    .hero::before {
        display: none;
    }
    
    .product-card::before {
        display: none;
    }
    
    .btn::before {
        display: none;
    }
    
    .filter-btn::before {
        display: none;
    }
}

/* =================================================================
   UTILIDADES ESPECÍFICAS PARA MOBILE
   ================================================================= */

/* Sticky headers en móvil */
@media (max-width: 768px) {
    .mobile-nav-header {
        position: sticky;
        top: 0;
        z-index: 10;
    }
    
    .cart-header {
        position: sticky;
        top: 0;
        z-index: 10;
    }
}

/* Touch targets mejorados para móvil */
@media (max-width: 768px) {
    .btn,
    .filter-btn,
    .mobile-nav-link,
    .cart-close,
    .qty-btn,
    .cart-remove {
        min-height: var(--min-touch-target);
        min-width: var(--min-touch-target);
    }
}

/* Hover effects solo en desktop */
@media (hover: hover) and (pointer: fine) {
    .product-card:hover .product-image {
        transform: scale(1.1);
    }
}

/* No hover en dispositivos táctiles */
@media (hover: none) {
    .product-card:hover .product-image {
        transform: none;
    }
    
    .whatsapp-tooltip {
        display: none !important;
    }
}

/* =================================================================
   MODO LANDSCAPE PARA MÓVILES
   ================================================================= */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        padding: var(--spacing-md) 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .cart-sidebar {
        max-width: 50vw;
    }
    
    .mobile-nav-content {
        max-width: 50vw;
    }
}

/* =================================================================
   IMPRESIÓN
   ================================================================= */
@media print {
    .header,
    .mobile-nav,
    .cart-sidebar,
    .cart-overlay,
    .whatsapp-float,
    .scroll-to-top,
    .notification {
        display: none !important;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        break-inside: avoid;
    }
    
    .product-card {
        break-inside: avoid;
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid #333;
    }
}

/* =================================================================
   OPTIMIZACIONES DE RENDIMIENTO
   ================================================================= */

/* GPU acceleration para elementos animados */
.product-card,
.btn,
.filter-btn,
.cart-sidebar,
.mobile-nav-content,
.whatsapp-float {
    will-change: transform;
    transform: translateZ(0);
}

/* Lazy loading para imágenes */
.product-image {
    content-visibility: auto;
    contain-intrinsic-size: 320px 240px;
}

/* Contain para mejor rendimiento */
.product-card {
    contain: layout style paint;
}

.cart-item {
    contain: layout style;
}

/* =================================================================
   TEMA CLARO (OPCIONAL)
   ================================================================= */
[data-theme="light"] {
    --primary-dark: #ffffff;
    --secondary-dark: #f8f9fa;
    --text-light: #1a1a2e;
    --text-muted: #6c757d;
    --glass-bg: rgba(0, 0, 0, 0.05);
    --glass-border: rgba(0, 0, 0, 0.1);
    --shadow-dark: rgba(0, 0, 0, 0.1);
    --gradient-dark: linear-gradient(135deg, #ffffff, #f8f9fa);
}

/* =================================================================
   DEBUGGING (REMOVER EN PRODUCCIÓN)
   ================================================================= */
.debug * {
    outline: 1px solid red !important;
}

.debug .container {
    outline-color: blue !important;
}

.debug .products-grid {
    outline-color: green !important;
}

.debug .product-card {
    outline-color: purple !important;
}