:root {
    --primary: #0d6efd;
    --primary-dark: #0b5ed7;
    --secondary: #6c757d;
    --accent: #17a2b8;
    --accent-dark: #138496;
    --light: #f8f9fa;
    --dark: #212529;
    --success: #198754;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #0dcaf0;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #0d6efd 0%, #6c757d 100%);
    --gradient-accent: linear-gradient(45deg, #17a2b8, #138496);
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --border-radius: 0.375rem;
    --border-radius-lg: 0.5rem;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', 'Segoe UI', 'Arial', sans-serif;
}

body {
    background: linear-gradient(135deg, #f8fafc 0%, #e9ecef 100%);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Loading Screen - NUEVO */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s ease;
}

.loading-content {
    text-align: center;
    color: white;
}

.loading-logo {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

.loading-text {
    margin-top: 1rem;
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Header Profesional - Estilo RSE */
header,
.modern-header {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 3px solid var(--accent);
}

.header-content,
.header-content-modern {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.logo,
.brand-modern {
    color: white;
    letter-spacing: 2px;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
    text-transform: uppercase;
}

.brand-modern:hover {
    transform: scale(1.05);
    color: var(--info);
}

/* Logo mejorado con efectos profesionales */
.logo-modern {
    width: 65px;
    height: 65px;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
    padding: 8px;
    border: 3px solid rgba(255,255,255,0.3);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.logo-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 50%;
}

.logo-modern:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    border-color: var(--info);
}

.logo-modern:hover::before {
    opacity: 0.1;
}

.logo-image {
    width: 100% !important;
    height: 100% !important;
    object-fit: contain !important;
    border-radius: 50%;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    transition: var(--transition);
}

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

.logo-icon {
    font-size: 1.5rem;
    color: var(--accent);
    animation: pulse 2s infinite;
    position: relative;
    z-index: 2;
}

.brand-text {
    color: white;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
    line-height: 1.2;
    background: linear-gradient(45deg, #fff, #e3eafc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-subtitle {
    font-size: 0.8rem;
    opacity: 0.9;
    display: block;
    font-weight: 400;
    letter-spacing: 1px;
    color: var(--info);
}

/* Search Container Profesional */
.search-container-modern {
    flex: 1;
    max-width: 500px;
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.2);
    border-radius: 50px;
    padding: 0.5rem 1rem;
    backdrop-filter: blur(15px);
    border: 2px solid rgba(255,255,255,0.3);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.search-wrapper:hover {
    border-color: var(--info);
    box-shadow: 0 0 20px rgba(13, 202, 240, 0.3);
}

.search-icon {
    position: absolute;
    left: 1.2rem;
    color: rgba(255,255,255,0.9);
    z-index: 2;
    font-size: 1.1rem;
}

.search-input-modern {
    flex: 1;
    background: transparent;
    border: none;
    padding: 0.8rem 1rem 0.8rem 3rem;
    color: white;
    outline: none;
    font-size: 1rem;
    font-weight: 500;
}

.search-input-modern::placeholder {
    color: rgba(255,255,255,0.7);
    font-weight: 400;
}

.search-btn-modern {
    background: var(--gradient-accent);
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.search-btn-modern:hover {
    background: linear-gradient(45deg, var(--info), var(--accent));
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

/* Cart Icon Profesional */
.cart-icon,
.cart-btn-modern {
    position: relative;
    cursor: pointer;
    padding: 12px;
    border-radius: 50%;
    background: var(--gradient-accent);
    border: 3px solid rgba(255,255,255,0.3);
    color: white;
    font-size: 1.6rem;
    transition: var(--transition);
    width: 65px;
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    animation: pulse 3s infinite;
}

.cart-icon:hover,
.cart-btn-modern:hover {
    background: linear-gradient(45deg, var(--info), var(--primary));
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 10px 30px rgba(13, 202, 240, 0.4);
    border-color: var(--info);
}

.cart-count,
.cart-badge-modern {
    position: absolute;
    top: -10px;
    right: -10px;
    background: linear-gradient(45deg, var(--danger), #e74c3c);
    color: white;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    border: 3px solid white;
    box-shadow: var(--shadow-md);
    animation: bounce 2s infinite;
}

/* Animaciones */
@keyframes pulse {
    0%, 100% { 
        box-shadow: 0 0 0 0 rgba(23, 162, 184, 0.7);
    }
    70% { 
        box-shadow: 0 0 0 10px rgba(23, 162, 184, 0);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: scale(1);
    }
    40%, 43% {
        transform: scale(1.1);
    }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px); 
    }
    50% { 
        transform: translateY(-8px); 
    }
}

/* Hero Section Profesional - Estilo RSE */
.hero,
.hero-section-modern {
    background: var(--gradient-primary);
    position: relative;
    color: white;
    padding: 100px 0;
    text-align: center;
    margin-bottom: 50px;
    overflow: hidden;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255,255,255,0.1) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: float 20s ease-in-out infinite;
    z-index: 1;
}

.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(23, 162, 184, 0.1) 50%, transparent 70%);
    animation: slide 15s linear infinite;
    z-index: 1;
}

.hero-content-modern {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(255,255,255,0.2);
    border: 2px solid rgba(255,255,255,0.3);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 2rem;
    backdrop-filter: blur(15px);
    box-shadow: var(--shadow-sm);
    animation: slideInDown 1s ease;
}

.hero-badge i {
    margin-right: 0.5rem;
    color: var(--info);
}

.hero h1,
.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 3px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: slideInUp 1s ease 0.3s both;
}

.text-gradient {
    background: linear-gradient(45deg, #17a2b8, #20c997);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero p,
.hero-description {
    font-size: 1.3rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    opacity: 0.95;
    line-height: 1.7;
    font-weight: 400;
    animation: fadeIn 1s ease 0.6s both;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.9s both;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.1rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.1);
    border-radius: 30px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-3px);
}

.feature-item i {
    font-size: 1.3rem;
    color: var(--info);
}

.cta-btn-modern {
    background: var(--gradient-accent);
    border: none;
    padding: 1.2rem 3rem;
    border-radius: 50px;
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    box-shadow: var(--shadow-lg);
    text-transform: uppercase;
    letter-spacing: 1px;
    animation: slideInUp 1s ease 1.2s both;
}

.cta-btn-modern:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(23,162,184,0.4);
    background: linear-gradient(45deg, var(--info), var(--primary));
}

/* Animaciones adicionales */
@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 0.95;
    }
}

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

@keyframes slide {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Container Modernizado - NUEVO */
.container-modern {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Filter Section Profesional */
.filter-section,
.filter-section-modern {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 3rem 2rem;
    margin: 3rem 0;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(13, 110, 253, 0.1);
    position: relative;
    overflow: hidden;
}

.filter-section-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
}

.filter-title,
.filter-title-modern {
    color: var(--primary);
    font-weight: 800;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.filter-subtitle {
    color: var(--secondary);
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 400;
    line-height: 1.6;
}

.filter-options,
.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.filter-group,
.filter-card {
    background: linear-gradient(135deg, #f8fafc 0%, #e9ecef 100%);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    border: 2px solid transparent;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.filter-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.filter-card:hover::before {
    transform: scaleX(1);
}

.filter-card:hover {
    border-color: var(--accent);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    background: var(--white);
}

.filter-icon {
    margin-bottom: 1.5rem;
    text-align: center;
}

.filter-icon i {
    font-size: 2rem;
    padding: 1rem;
    border-radius: 50%;
    background: var(--gradient-accent);
    color: white;
    box-shadow: var(--shadow-md);
}

.filter-group label,
.filter-label {
    display: block;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--dark);
    font-size: 1.1rem;
    text-align: center;
}

.filter-group select,
.filter-group input,
.filter-select-modern {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid var(--light);
    border-radius: 50px;
    background: var(--white);
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
    color: var(--dark);
}

.filter-group select:focus,
.filter-group input:focus,
.filter-select-modern:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(23, 162, 184, 0.1);
    background: var(--white);
}

.filter-select-modern:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

/* Products Section */
.products-section-modern {
    margin: 3rem 0;
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.products-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #333;
}

.view-options {
    display: flex;
    gap: 0.5rem;
    background: #f1f3f4;
    padding: 0.25rem;
    border-radius: 12px;
}

.view-btn {
    background: transparent;
    border: none;
    padding: 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #666;
}

.view-btn.active,
.view-btn:hover {
    background: white;
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Products Grid Profesional */
.products-grid,
.products-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
    margin: 50px 0;
    transition: var(--transition);
}

.products-grid-modern.list-view {
    grid-template-columns: 1fr;
}

.product-card {
    border: none;
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
    background: var(--white);
    overflow: hidden;
    animation: fadeInUp 0.6s ease forwards;
    position: relative;
    border-top: 4px solid var(--accent);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--primary);
}

.product-image {
    height: 250px;
    width: 100%;
    object-fit: cover;
    transition: var(--transition);
    position: relative;
}

.product-card:hover .product-image {
    transform: scale(1.08);
}

.product-info {
    padding: 2rem;
    position: relative;
}

.product-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.product-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark);
    margin-top: 0.5rem;
    line-height: 1.4;
}

.product-description {
    color: var(--secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-compatible {
    font-size: 0.9rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    background: rgba(13, 110, 253, 0.1);
    padding: 0.8rem 1rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary);
    font-weight: 500;
}

.product-compatible strong {
    color: var(--accent);
}

.product-price {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-price::before {
    content: '$';
    font-size: 1.2rem;
    color: var(--secondary);
}

.product-card .product-price {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Stock indicator */
.stock-indicator {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
    background: var(--success);
}

.stock-indicator.low {
    background: var(--warning);
    color: var(--dark);
}

.stock-indicator.out {
    background: var(--danger);
}

/* Botones Profesionales - Estilo RSE */
.btn, 
.btn-add-cart, 
.checkout-btn {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: var(--shadow-md);
    letter-spacing: 0.5px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.btn::before,
.btn-add-cart::before,
.checkout-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,
.btn-add-cart:hover::before,
.checkout-btn:hover::before {
    left: 100%;
}

.btn-add-cart {
    background: var(--gradient-accent);
    color: white;
    width: 100%;
    text-align: center;
    gap: 0.5rem;
    font-size: 1rem;
    padding: 1.2rem 2rem;
}

.btn-add-cart:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(23,162,184,0.4);
    background: linear-gradient(45deg, var(--info), var(--primary));
}

.btn-add-cart:disabled,
.btn-add-cart[disabled] {
    background: var(--secondary) !important;
    color: var(--light) !important;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: var(--shadow-sm) !important;
    opacity: 0.6;
}

.btn-add-cart:disabled::before,
.btn-add-cart[disabled]::before {
    display: none;
}

.btn-add-cart i {
    font-size: 1.1rem;
}

/* Efectos adicionales para botones */
.btn-pulse {
    animation: pulse-btn 2s infinite;
}

@keyframes pulse-btn {
    0% {
        box-shadow: 0 0 0 0 rgba(23, 162, 184, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(23, 162, 184, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(23, 162, 184, 0);
    }
}

/* Cart Modal Profesional - Estilo RSE */
.cart-modal,
.cart-modal-modern {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 450px;
    height: 100%;
    background: linear-gradient(180deg, var(--white) 0%, #f8fafc 100%);
    box-shadow: -15px 0 50px rgba(0,0,0,0.2);
    z-index: 2000;
    overflow-y: auto;
    border-top-left-radius: 25px;
    border-bottom-left-radius: 25px;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 4px solid var(--gradient-accent);
}

.cart-modal.show,
.cart-modal-modern.show,
.cart-modal[style*="block"] {
    display: block !important;
    transform: translateX(0) !important;
    animation: slideInRight 0.4s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.cart-header,
.cart-header-modern {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0;
    padding: 2rem 2rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    position: relative;
}

.cart-header::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(180deg, rgba(13, 110, 253, 0.1) 0%, transparent 100%);
}

.cart-title-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.cart-title-section i {
    font-size: 1.8rem;
    color: var(--info);
    animation: pulse 2s infinite;
}

.cart-title-section h3 {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 800;
    color: white;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.close-cart,
.cart-close-btn {
    background: rgba(255,255,255,0.2);
    border: none;
    font-size: 1.5rem;
    color: white;
    cursor: pointer;
    padding: 0.8rem;
    border-radius: 50%;
    transition: var(--transition);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.close-cart:hover,
.cart-close-btn:hover {
    background: rgba(255,255,255,0.3);
    color: var(--danger);
    transform: rotate(90deg);
}

.cart-items,
.cart-body {
    padding: 2rem;
    flex: 1;
    max-height: calc(100vh - 300px);
    overflow-y: auto;
}

/* Scrollbar personalizado */
.cart-items::-webkit-scrollbar {
    width: 8px;
}

.cart-items::-webkit-scrollbar-track {
    background: #f1f3f4;
    border-radius: 10px;
}

.cart-items::-webkit-scrollbar-thumb {
    background: var(--gradient-accent);
    border-radius: 10px;
}

.cart-items::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Items del carrito mejorados */
.cart-item {
    display: flex;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(23, 162, 184, 0.1);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.cart-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cart-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}

.cart-item:hover::before {
    opacity: 1;
}

.cart-item-image {
    width: 90px;
    height: 90px;
    object-fit: cover;
    margin-right: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.cart-item:hover .cart-item-image {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.cart-item-details {
    flex-grow: 1;
}

.cart-item-title {
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: var(--dark);
    font-size: 1.1rem;
    line-height: 1.3;
}

.cart-item-price {
    color: var(--accent);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.quantity-btn {
    background: var(--white);
    border: 2px solid var(--accent);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--accent);
    box-shadow: var(--shadow-sm);
}

.quantity-btn:hover {
    background: var(--gradient-accent);
    color: white;
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.quantity-input {
    width: 60px;
    text-align: center;
    border: 2px solid var(--light);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    font-weight: 600;
    color: var(--dark);
    background: var(--light);
    transition: var(--transition);
}

.quantity-input:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(23, 162, 184, 0.1);
}

.remove-item {
    color: var(--danger);
    background: rgba(220, 53, 69, 0.1);
    border: none;
    cursor: pointer;
    padding: 0.6rem 1rem;
    border-radius: 20px;
    transition: var(--transition);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.remove-item:hover {
    background: var(--danger);
    color: white;
    transform: scale(1.05);
}

.empty-cart {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--secondary);
    font-size: 1.1rem;
    background: var(--light);
    border-radius: var(--border-radius-lg);
    margin: 2rem 0;
}

.empty-cart::before {
    content: '🛒';
    display: block;
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Resumen del carrito profesional */
.cart-total,
.cart-summary {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: left;
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--accent);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.cart-summary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
}

.summary-line {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    color: var(--secondary);
    font-size: 1rem;
    font-weight: 500;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(23, 162, 184, 0.1);
}

.summary-line:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
}

.summary-line .label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.summary-line .value {
    font-weight: 700;
    color: var(--dark);
}

.summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--dark);
    padding-top: 1.5rem;
    border-top: 3px solid var(--gradient-accent);
    margin-top: 1rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.checkout-btn {
    background: var(--gradient-primary) !important;
    color: white !important;
    width: 100%;
    padding: 1.5rem 2rem;
    text-align: center;
    border: none !important;
    border-radius: 50px;
    font-weight: 800;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    margin-top: 1rem;
}

.checkout-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.7s;
}

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

.checkout-btn i {
    margin-left: 0.8rem;
    font-size: 1.1rem;
}

.checkout-btn:disabled,
.checkout-btn[disabled] {
    background: var(--secondary) !important;
    color: var(--light) !important;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: var(--shadow-sm) !important;
    opacity: 0.6;
}

.checkout-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--info) 0%, var(--primary) 100%) !important;
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(13, 110, 253, 0.4);
}

/* Efectos de pulsación para checkout */
.checkout-btn.processing {
    animation: processing 1s infinite;
}

@keyframes processing {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.98);
    }
}

/* Overlay */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 1999;
}

.overlay[style*="block"] {
    display: block !important;
}

/* Empty State - NUEVO */
.empty-state-modern {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    display: none;
}

.empty-icon {
    font-size: 4rem;
    color: #ccc;
    margin-bottom: 1rem;
}

.empty-state-modern h4 {
    color: #333;
    margin-bottom: 0.5rem;
}

.empty-state-modern p {
    color: #666;
    margin-bottom: 2rem;
}

.btn-reset-filters {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-reset-filters:hover {
    background: #004494;
    transform: translateY(-2px);
}

/* Toast - NUEVO */
.toast-modern {
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    border: none;
    overflow: hidden;
    min-width: 350px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.toast-modern.show {
    transform: translateX(0);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
}

.toast-icon {
    background: linear-gradient(45deg, var(--success), #20c997);
    color: white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.toast-message strong {
    display: block;
    color: #333;
    margin-bottom: 0.25rem;
}

.toast-message small {
    color: #666;
}

.toast-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.toast-close:hover {
    background: rgba(0,0,0,0.1);
    color: #666;
}

/* Footer Mejorado */
footer,
.footer-modern {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    border-top-left-radius: 24px;
    border-top-right-radius: 24px;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section {
    margin-bottom: 20px;
}

.footer-section h3,
.footer-section h4 {
    color: #ecf0f1;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    font-size: 18px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.footer-brand-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: #3498db;
}

.footer-description {
    color: #bdc3c7;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: #bdc3c7;
}

.contact-item i {
    color: #3498db;
    width: 16px;
}

.contact-item a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: #3498db;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link.instagram {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

.social-link.whatsapp {
    background: #25d366;
}

.social-link.email {
    background: #ea4335;
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1.5rem;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #95a5a6;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: #95a5a6;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #3498db;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #3498db;
}

/* Animaciones */
@keyframes pulse {
    0%, 100% { 
        transform: scale(1); 
        opacity: 1;
    }
    50% { 
        transform: scale(1.05); 
        opacity: 0.8;
    }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px); 
    }
    50% { 
        transform: translateY(-20px); 
    }
}

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

/* Responsive */
@media (max-width: 768px) {
    .products-grid,
    .products-grid-modern {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .cart-modal,
    .cart-modal-modern {
        width: 100%;
        border-radius: 0;
    }
    
    .hero h1,
    .hero-title {
        font-size: 2rem;
    }
    
    .hero p,
    .hero-description {
        font-size: 1rem;
    }
    
    .search-container-modern {
        display: none !important;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .filter-grid,
    .filter-options {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .header-content,
    .header-content-modern {
        gap: 0.5rem;
    }
    
    .brand-text {
        display: none;
    }
    
    .container-modern {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .filter-section,
    .filter-section-modern {
        margin: 1rem;
        padding: 1.5rem;
    }
}