/* ============================================
   VARIABLES Y RESET MEJORADOS
   ============================================ */
:root {
    /* Paleta de colores principal - Verde ecológico */
    --primary-color: #27ae60;
    --primary-dark: #219653;
    --primary-light: #6fcf97;
    --primary-gradient: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    
    /* Colores secundarios */
    --secondary-color: #f2994a;
    --secondary-dark: #e67e22;
    --secondary-light: #f2c94c;
    
    /* Colores neutros */
    --dark-color: #2c3e50;
    --dark-light: #34495e;
    --light-color: #f8f9fa;
    --light-gray: #ecf0f1;
    --gray-color: #95a5a6;
    --border-color: #dfe6e9;
    --white: #ffffff;
    
    /* Colores de estado */
    --success-color: #27ae60;
    --warning-color: #f2994a;
    --error-color: #eb5757;
    --info-color: #2d9cdb;
    
    /* Sombras y efectos */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 15px 50px rgba(0, 0, 0, 0.2);
    --shadow-primary: 0 4px 20px rgba(39, 174, 96, 0.3);
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Bordes */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 30px;
    --border-radius-circle: 50%;
    
    /* Espaciado */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-xxl: 48px;
    
    /* Layout */
    --max-width: 1280px;
    --header-height: 80px;
    --z-index-header: 1000;
    --z-index-modal: 1100;
    --z-index-overlay: 1050;
    --z-index-toast: 1200;
}

/* Modo oscuro */
[data-theme="dark"] {
    --dark-color: #f8f9fa;
    --light-color: #1a1a1a;
    --light-gray: #2d2d2d;
    --border-color: #404040;
    --white: #121212;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
}

/* Reset mejorado */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Tipografía mejorada */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

.highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: rgba(39, 174, 96, 0.2);
    z-index: -1;
    border-radius: 4px;
}

/* Enlaces y botones */
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

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

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

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

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fade-in {
    animation: fadeIn 1s var(--transition-bounce);
}

.animate-slide-in {
    animation: slideInUp 0.8s var(--transition-bounce);
}

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* ============================================
   COMPONENTES REUTILIZABLES
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 28px;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:active {
    transform: translateY(2px);
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

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

.btn-secondary:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(242, 153, 74, 0.3);
}

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

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
    border-radius: var(--border-radius-lg);
}

.btn-icon {
    padding: 10px;
    border-radius: var(--border-radius-circle);
    min-width: 44px;
    min-height: 44px;
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-color);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xxl);
}

.card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   HEADER Y NAVEGACIÓN MEJORADA
   ============================================ */
.header-sticky {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-index-header);
    transition: var(--transition-normal);
}

[data-theme="dark"] .header-sticky {
    background-color: rgba(26, 26, 26, 0.95);
}

.header-sticky.scrolled {
    height: 70px;
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark-color);
}

.logo-icon {
    color: var(--primary-color);
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
}

.logo-highlight {
    color: var(--primary-color);
}

.main-nav ul {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-link {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.cart-icon-btn {
    position: relative;
    background: none;
    border: none;
    padding: var(--space-sm);
    cursor: pointer;
    color: var(--dark-color);
    font-size: 1.2rem;
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--secondary-color);
    color: var(--white);
    font-size: 0.7rem;
    min-width: 20px;
    height: 20px;
    border-radius: var(--border-radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    animation: pulse 2s infinite;
}

.theme-toggle {
    background: none;
    border: none;
    padding: var(--space-sm);
    cursor: pointer;
    color: var(--dark-color);
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.theme-toggle:hover {
    color: var(--primary-color);
    transform: rotate(30deg);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.menu-icon {
    width: 100%;
    height: 3px;
    background-color: var(--dark-color);
    border-radius: 2px;
    transition: var(--transition-normal);
}

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

.mobile-menu-btn.active .menu-icon:nth-child(2) {
    opacity: 0;
}

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

/* ============================================
   HERO SECTION MEJORADA
   ============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.1), rgba(242, 153, 74, 0.05));
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><path d="M30,30 Q50,20 70,30 T90,30 L90,70 Q70,80 50,70 T10,70 Z" fill="white" opacity="0.05"/></svg>');
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
    align-items: center;
    z-index: 1;
}

.hero-text {
    max-width: 600px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-gradient);
    color: var(--white);
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-primary);
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--space-lg);
    line-height: 1.1;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: var(--space-xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-lg);
    z-index: -1;
    opacity: 0.3;
    animation: float 4s ease-in-out infinite;
}

.image-container {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-normal);
}

.image-container:hover {
    transform: scale(1.02);
}

.image-container img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.image-container:hover img {
    transform: scale(1.1);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: float 2s ease-in-out infinite;
}

.hero-scroll-indicator a {
    display: block;
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-circle);
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.hero-scroll-indicator a:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-5px);
}

/* ============================================
   STATS SECTION
   ============================================ */
.stats-section {
    padding: var(--space-xxl) 0;
    background-color: var(--light-gray);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
}

.stat-card {
    text-align: center;
    padding: var(--space-xl);
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--space-md);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: var(--space-sm);
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--gray-color);
    font-size: 1rem;
}

/* ============================================
   FILTERS SECTION MEJORADA
   ============================================ */
.filters-section {
    padding: var(--space-xxl) 0;
    background-color: var(--white);
}

.filter-container {
    background-color: var(--light-gray);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.search-wrapper {
    margin-bottom: var(--space-xl);
}

.search-box {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-box input {
    width: 100%;
    padding: 16px 60px 16px 50px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    font-size: 1rem;
    background-color: var(--white);
    transition: var(--transition-normal);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-primary);
}

.search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-color);
    font-size: 1.2rem;
}

.search-clear {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-color);
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

.search-clear:hover {
    color: var(--error-color);
}

.filter-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.filter-btn {
    padding: 12px 24px;
    background-color: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: var(--transition-normal);
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.filter-btn.active {
    background: var(--primary-gradient);
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-primary);
}

.sort-controls {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.sort-controls label {
    font-weight: 600;
    color: var(--dark-color);
}

.sort-select {
    padding: 10px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--white);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* ============================================
   PRODUCTS SECTION MEJORADA
   ============================================ */
.products-section {
    padding: var(--space-xxl) 0;
    background-color: var(--light-gray);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xxl);
}

.product-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-xxl);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-md);
}

.products-empty {
    text-align: center;
    padding: var(--space-xxl);
    color: var(--gray-color);
}

.products-empty i {
    margin-bottom: var(--space-md);
    color: var(--border-color);
}

.product-card {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
}

.product-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-xl);
}

.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 6px 15px;
    border-radius: var(--border-radius-xl);
    font-size: 0.8rem;
    font-weight: 700;
    z-index: 1;
    box-shadow: var(--shadow-sm);
}

.product-badge[data-badge="Nuevo"] {
    background-color: var(--info-color);
    color: var(--white);
}

.product-badge[data-badge="Popular"] {
    background-color: var(--secondary-color);
    color: var(--white);
}

.product-badge[data-badge="Orgánico"] {
    background-color: var(--success-color);
    color: var(--white);
}

.product-badge[data-badge="Superfood"] {
    background-color: #9b51e0;
    color: var(--white);
}

.product-badge[data-badge="Sin gluten"] {
    background-color: #56ccf2;
    color: var(--white);
}

.product-badge[data-badge="Proteína"] {
    background-color: #f2994a;
    color: var(--white);
}

.product-img {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.product-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.1));
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.product-info {
    padding: var(--space-lg);
}

.product-category {
    display: inline-block;
    padding: 4px 12px;
    background-color: rgba(39, 174, 96, 0.1);
    color: var(--primary-color);
    border-radius: var(--border-radius-xl);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.product-name {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--dark-color);
    line-height: 1.3;
}

.product-description {
    color: var(--gray-color);
    font-size: 0.95rem;
    margin-bottom: var(--space-lg);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    /* La propiedad estándar debe ir después de los prefijos */
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    /* Añade también para compatibilidad con otros navegadores */
    box-orient: vertical;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.product-price::before {
    content: '$';
    font-size: 1rem;
    margin-right: 2px;
}

.add-to-cart {
    width: 45px;
    height: 45px;
    border-radius: var(--border-radius-circle);
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-primary);
}

.add-to-cart:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 6px 20px rgba(39, 174, 96, 0.4);
}

.add-to-cart.added {
    background: var(--secondary-color);
    animation: pulse 0.5s;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
    padding: var(--space-xxl) 0;
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
    align-items: center;
}

.about-text {
    max-width: 600px;
}

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

.feature-item {
    padding: var(--space-lg);
    background-color: var(--light-gray);
    border-radius: var(--border-radius-lg);
    transition: var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-5px);
    background-color: rgba(39, 174, 96, 0.1);
}

.feature-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--space-md);
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
}

.feature-item p {
    color: var(--gray-color);
    font-size: 0.95rem;
}

.about-image {
    position: relative;
}

.image-frame {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.image-frame::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-color);
    border-radius: var(--border-radius-lg);
    z-index: -1;
    opacity: 0.3;
}

.image-frame img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.image-frame:hover img {
    transform: scale(1.05);
}

/* ============================================
   CONTACT SECTION MEJORADA
   ============================================ */
.contact-section {
    padding: var(--space-xxl) 0;
    background-color: var(--light-gray);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
}

.contact-card {
    background-color: var(--white);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    height: 100%;
}

.contact-card h3 {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    color: var(--primary-color);
}

.contact-details {
    margin: var(--space-xl) 0;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.contact-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
    color: var(--dark-color);
}

.contact-text p {
    color: var(--gray-color);
    line-height: 1.6;
}

.social-links {
    margin-top: var(--space-xl);
}

.social-links h4 {
    margin-bottom: var(--space-md);
    color: var(--dark-color);
}

.social-icons {
    display: flex;
    gap: var(--space-sm);
}

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: var(--border-radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    transition: var(--transition-normal);
}

.social-icon:hover {
    transform: translateY(-5px);
}

.facebook { background-color: #3b5998; }
.instagram { background: linear-gradient(45deg, #405de6, #5851db, #833ab4, #c13584, #e1306c, #fd1d1d); }
.twitter { background-color: #1da1f2; }
.whatsapp { background-color: #25d366; }

.contact-form {
    background-color: var(--white);
    padding: var(--space-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.form-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.form-header h3 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--primary-color);
}

.form-header p {
    color: var(--gray-color);
    margin-top: var(--space-sm);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.form-group {
    position: relative;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

.form-group label i {
    color: var(--primary-color);
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: 1rem;
    background-color: var(--light-gray);
    transition: var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.form-error {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 5px;
    min-height: 20px;
}

.form-footer {
    margin-top: var(--space-xl);
    text-align: center;
}

.form-message {
    padding: var(--space-md);
    border-radius: var(--border-radius-md);
    margin-top: var(--space-md);
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    display: block;
    background-color: rgba(39, 174, 96, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(39, 174, 96, 0.2);
}

.form-message.error {
    display: block;
    background-color: rgba(235, 87, 87, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(235, 87, 87, 0.2);
}

/* ============================================
   FOOTER MEJORADO
   ============================================ */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding-top: var(--space-xxl);
}

.footer-content {
    padding-bottom: var(--space-xl);
}

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

.footer-col {
    padding: var(--space-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.footer-logo i {
    color: var(--primary-color);
}

.footer-logo span {
    color: var(--primary-color);
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.footer-newsletter {
    margin-top: var(--space-xl);
}

.footer-newsletter h4 {
    color: var(--white);
    margin-bottom: var(--space-md);
}

.newsletter-form {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--white);
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.newsletter-note {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: var(--space-lg);
    font-size: 1.2rem;
    position: relative;
    padding-bottom: var(--space-sm);
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-links a i {
    font-size: 0.8rem;
}

.payment-methods {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.payment-methods i {
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.payment-methods i:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

.app-download {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.app-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    transition: var(--transition-normal);
}

.app-btn:hover {
    background-color: var(--primary-color);
    transform: translateX(5px);
}

.app-btn i {
    font-size: 1.5rem;
}

.app-btn div {
    display: flex;
    flex-direction: column;
}

.app-btn span {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
}

.app-btn strong {
    font-size: 1rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-xl);
    text-align: center;
}

.copyright {
    margin-bottom: var(--space-md);
}

.copyright p {
    color: rgba(255, 255, 255, 0.7);
}

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

.footer-credits {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-credits i {
    color: var(--error-color);
    animation: pulse 2s infinite;
}

/* ============================================
   CART MODAL MEJORADO
   ============================================ */
.cart-modal {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-index-modal);
    visibility: hidden;
    transition: visibility var(--transition-normal);
}

.cart-modal[aria-hidden="false"] {
    visibility: visible;
}

.cart-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.cart-modal[aria-hidden="false"] .cart-modal-overlay {
    opacity: 1;
}

.cart-modal-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 450px;
    height: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.cart-modal[aria-hidden="false"] .cart-modal-content {
    transform: translateX(0);
}

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

.cart-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.cart-title i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.cart-title h3 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--dark-color);
}

.close-cart {
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--gray-color);
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.close-cart:hover {
    background-color: var(--light-gray);
    color: var(--error-color);
}

.cart-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
}

.cart-empty {
    text-align: center;
    padding: var(--space-xxl) var(--space-lg);
    color: var(--gray-color);
}

.cart-empty i {
    margin-bottom: var(--space-md);
    color: var(--border-color);
}

.cart-empty h4 {
    margin-bottom: var(--space-sm);
    color: var(--dark-color);
}

.cart-items {
    flex: 1;
}

.cart-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--border-radius-md);
    background-color: var(--light-gray);
    margin-bottom: var(--space-md);
    transition: var(--transition-normal);
}

.cart-item:hover {
    background-color: rgba(39, 174, 96, 0.05);
    transform: translateX(-5px);
}

.cart-item-img {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.cart-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

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

.cart-item-price {
    color: var(--primary-color);
    font-weight: 700;
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.quantity-btn {
    width: 30px;
    height: 30px;
    border-radius: var(--border-radius-circle);
    border: 2px solid var(--border-color);
    background-color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-normal);
}

.quantity-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: scale(1.1);
}

.cart-item-quantity {
    font-weight: 600;
    min-width: 30px;
    text-align: center;
}

.remove-item {
    background: none;
    border: none;
    color: var(--error-color);
    cursor: pointer;
    padding: var(--space-sm);
    transition: var(--transition-normal);
}

.remove-item:hover {
    color: #d32f2f;
    transform: rotate(90deg);
}

.cart-summary {
    background-color: var(--light-gray);
    padding: var(--space-lg);
    border-radius: var(--border-radius-lg);
    margin-top: var(--space-lg);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

.summary-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.summary-item.total {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.cart-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    top: var(--header-height);
    right: var(--space-lg);
    z-index: var(--z-index-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-width: 350px;
}

.toast {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    color: var(--white);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    animation: slideInRight 0.3s var(--transition-bounce);
    transform-origin: right center;
    position: relative;
    overflow: hidden;
}

.toast::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
}

.toast-success {
    background-color: var(--success-color);
}

.toast-success::before {
    background-color: rgba(255, 255, 255, 0.5);
}

.toast-error {
    background-color: var(--error-color);
}

.toast-error::before {
    background-color: rgba(255, 255, 255, 0.5);
}

.toast-info {
    background-color: var(--info-color);
}

.toast-info::before {
    background-color: rgba(255, 255, 255, 0.5);
}

.toast-warning {
    background-color: var(--warning-color);
}

.toast-warning::before {
    background-color: rgba(255, 255, 255, 0.5);
}

.toast-icon {
    font-size: 1.2rem;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: 2px;
}

.toast-message {
    font-size: 0.9rem;
    opacity: 0.9;
}

.toast-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.toast-close:hover {
    color: var(--white);
}

/* ============================================
   LOADING OVERLAY
   ============================================ */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1300;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner-large {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-lg);
}

.loading-overlay p {
    color: var(--white);
    font-size: 1.1rem;
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-circle);
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-primary);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-normal);
    z-index: 100;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   RESPONSIVE DESIGN AVANZADO
   ============================================ */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-content {
        gap: var(--space-xl);
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-xxl);
    }
    
    .hero-text {
        max-width: 100%;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .about-text {
        max-width: 100%;
        text-align: center;
    }
    
    .features-grid {
        justify-content: center;
    }
    
    .footer-main {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .mobile-menu-btn {
        display: flex;
        z-index: 1001;
    }
    
    .main-nav ul {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        align-items: stretch;
        padding: var(--header-height) var(--space-lg) var(--space-lg);
        box-shadow: var(--shadow-xl);
        transition: var(--transition-normal);
        z-index: 1000;
    }
    
    [data-theme="dark"] .main-nav ul {
        background-color: var(--light-color);
    }
    
    .main-nav ul.active {
        right: 0;
    }
    
    .nav-link {
        padding: var(--space-md);
        justify-content: flex-start;
        border-radius: var(--border-radius-md);
    }
    
    .nav-link:hover {
        background-color: var(--light-gray);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .filter-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-buttons {
        justify-content: center;
    }
    
    .sort-controls {
        justify-content: center;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .cart-modal-content {
        max-width: 100%;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-lg {
        padding: 14px 28px;
        width: 100%;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-buttons {
        flex-direction: column;
    }
    
    .filter-btn {
        width: 100%;
        justify-content: center;
    }
    
    .cart-item {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cart-item-img {
        margin: 0 auto;
    }
    
    .cart-item-controls {
        justify-content: center;
    }
}

@media (max-width: 400px) {
    .hero-badge {
        font-size: 0.8rem;
        padding: 6px 15px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .footer-col {
        padding: var(--space-md);
    }
}

/* ============================================
   UTILIDADES ADICIONALES
   ============================================ */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.text-center {
    text-align: center;
}

.text-primary {
    color: var(--primary-color);
}

.text-secondary {
    color: var(--secondary-color);
}

.bg-light {
    background-color: var(--light-gray);
}

.bg-white {
    background-color: var(--white);
}

.shadow {
    box-shadow: var(--shadow-md);
}

.rounded {
    border-radius: var(--border-radius-md);
}

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

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

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

/* ============================================
   SCROLLBAR PERSONALIZADA
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background-color: var(--light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

/* ============================================
   SELECTION PERSONALIZADO
   ============================================ */
::selection {
    background-color: rgba(39, 174, 96, 0.3);
    color: var(--dark-color);
}