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

:root {
    /* Colores principales */
    --color-black: #000000;
    --color-white: #ffffff;
    --color-gold: #FFD700;
    --color-gold-dark: #B8860B;
    --color-gold-light: #FFF8DC;
    
    /* Grises */
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    
    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Espaciado */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-gold: 0 0 20px rgba(255, 215, 0, 0.3);
    
    /* Transiciones */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Bordes */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-full: 9999px;
}

/* Base */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* Utilidades */
.highlight {
    color: var(--color-gold);
    font-weight: 600;
}

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

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

/* Header */
.header {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #000000 100%);
    color: var(--color-white);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 215, 0, 0.15);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-decoration: none;
    color: var(--color-white);
}

.logo-img {
    height: 50px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(255, 215, 0, 0.3));
    object-fit: contain;
    transition: all 0.3s ease;
}

.logo-img:hover {
    filter: drop-shadow(0 4px 12px rgba(255, 215, 0, 0.5));
    transform: scale(1.05);
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-gold);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-8);
    align-items: center;
}

.nav-link {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-normal);
    position: relative;
    padding: var(--spacing-2) 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gold);
    transition: var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.search-btn,
.cart-btn {
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--border-radius-md);
    transition: var(--transition-normal);
    position: relative;
}

.search-btn:hover,
.cart-btn:hover {
    background: rgba(255, 215, 0, 0.1);
    color: var(--color-gold);
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--color-gold);
    color: var(--color-black);
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 2px 6px;
    border-radius: var(--border-radius-full);
    min-width: 18px;
    text-align: center;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
    gap: 4px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-white);
    transition: var(--transition-normal);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 25%, #0a0a0a 75%, #000000 100%);
    color: var(--color-white);
    padding: calc(80px + var(--spacing-20)) 0 var(--spacing-20);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-6);
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-8);
    line-height: 1.6;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.3);
}

.hero-features {
    margin-bottom: var(--spacing-6);
}

.feature-highlight {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.15) 0%, rgba(255, 215, 0, 0.05) 100%);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-4);
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.1);
}

.feature-text {
    color: var(--color-gold);
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.5px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
}

.phone-showcase {
    position: relative;
    width: 400px;
    height: 500px;
}

.phone-item {
    position: absolute;
    width: 200px;
    height: 400px;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-slow);
}

.phone-1 {
    top: 0;
    left: 0;
    z-index: 2;
    transform: rotate(-10deg);
}

.phone-2 {
    top: 50px;
    right: 0;
    z-index: 1;
    transform: rotate(10deg);
}

.phone-item:hover {
    transform: scale(1.05) rotate(0deg);
    box-shadow: var(--shadow-gold);
}

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

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    min-width: 140px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: var(--color-black);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-gold-dark) 0%, var(--color-gold) 100%);
    box-shadow: var(--shadow-gold);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--color-gold);
    color: var(--color-black);
}

.btn-outline {
    background: transparent;
    color: var(--color-black);
    border-color: var(--color-gold);
}

.btn-outline:hover {
    background: var(--color-gold);
    color: var(--color-black);
}

.btn-accent {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    color: var(--color-white);
    border: none;
    box-shadow: 
        0 0 20px rgba(255, 107, 53, 0.4),
        0 0 40px rgba(247, 147, 30, 0.3),
        0 4px 15px rgba(0, 0, 0, 0.2);
    animation: neonPulse 2s ease-in-out infinite alternate;
    position: relative;
    overflow: hidden;
}

.btn-accent::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 0.5s;
}

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

.btn-accent:hover {
    background: linear-gradient(135deg, #f7931e 0%, #ff6b35 100%);
    box-shadow: 
        0 0 30px rgba(255, 107, 53, 0.6),
        0 0 60px rgba(247, 147, 30, 0.4),
        0 6px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(-3px);
    animation: neonPulseHover 1s ease-in-out infinite alternate;
}

@keyframes neonPulse {
    0% {
        box-shadow: 
            0 0 20px rgba(255, 107, 53, 0.4),
            0 0 40px rgba(247, 147, 30, 0.3),
            0 4px 15px rgba(0, 0, 0, 0.2);
    }
    100% {
        box-shadow: 
            0 0 25px rgba(255, 107, 53, 0.6),
            0 0 50px rgba(247, 147, 30, 0.4),
            0 4px 15px rgba(0, 0, 0, 0.2);
    }
}

@keyframes neonPulseHover {
    0% {
        box-shadow: 
            0 0 30px rgba(255, 107, 53, 0.6),
            0 0 60px rgba(247, 147, 30, 0.4),
            0 6px 20px rgba(0, 0, 0, 0.3);
    }
    100% {
        box-shadow: 
            0 0 40px rgba(255, 107, 53, 0.8),
            0 0 80px rgba(247, 147, 30, 0.6),
            0 6px 20px rgba(0, 0, 0, 0.3);
    }
}

/* Secciones */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-4);
    color: var(--color-black);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

.section-footer {
    text-align: center;
    margin-top: var(--spacing-12);
}

/* Productos Destacados */
.featured-products {
    padding: var(--spacing-20) 0;
    background: var(--color-gray-100);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-8);
}

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

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-white) 100%);
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--spacing-4);
    transition: var(--transition-normal);
}

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

.product-badge {
    position: absolute;
    top: var(--spacing-3);
    left: var(--spacing-3);
    background: var(--color-gold);
    color: var(--color-black);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.product-info {
    padding: var(--spacing-6);
}

.product-brand {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
}

.product-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--spacing-3);
    line-height: 1.4;
}

.product-price {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.price-current {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-gold-dark);
}

.price-original {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    text-decoration: line-through;
}

.product-actions {
    display: flex;
    gap: var(--spacing-3);
}

.btn-add-cart {
    flex: 1;
    background: var(--color-black);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-add-cart:hover {
    background: var(--color-gold-dark);
    color: var(--color-black);
}

.btn-favorite {
    background: none;
    border: 2px solid var(--color-gray-300);
    color: var(--color-gray-500);
    padding: var(--spacing-3);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-favorite:hover,
.btn-favorite.active {
    border-color: var(--color-gold);
    color: var(--color-gold);
}

/* Secciones de Marca */
.brand-section {
    padding: var(--spacing-20) 0;
}

.apple-section {
    background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-white) 100%);
}

.samsung-section {
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-gray-100) 100%);
}

.brand-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-12);
    gap: var(--spacing-8);
}

.brand-info {
    flex: 1;
}

.brand-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-4);
}

.brand-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-gold-dark);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
}

.brand-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.6;
}

.brand-logo {
    color: var(--color-gold);
    opacity: 0.8;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-900) 100%);
    color: var(--color-white);
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-8);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.footer-logo-img {
    height: 40px;
    width: auto;
    filter: drop-shadow(0 2px 6px rgba(255, 215, 0, 0.3));
    object-fit: contain;
    transition: all 0.3s ease;
}

.footer-logo-img:hover {
    filter: drop-shadow(0 3px 8px rgba(255, 215, 0, 0.5));
    transform: scale(1.05);
}

.footer-logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gold);
}

.footer-description {
    color: var(--color-gray-300);
    line-height: 1.6;
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gold);
    margin-bottom: var(--spacing-4);
}

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

.footer-links li {
    margin-bottom: var(--spacing-2);
}

.footer-links a {
    color: var(--color-gray-300);
    text-decoration: none;
    transition: var(--transition-normal);
}

.footer-links a:hover {
    color: var(--color-gold);
}

.contact-info p {
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-2);
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-700);
    padding-top: var(--spacing-6);
    text-align: center;
    color: var(--color-gray-400);
}

/* Modal de Búsqueda */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 100px;
}

.search-modal.active {
    display: flex;
}

.search-modal-content {
    background: var(--color-white);
    border-radius: var(--border-radius-xl);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.search-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--color-gray-200);
}

.search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: var(--font-size-lg);
    padding: var(--spacing-2);
}

.search-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
    color: var(--color-gray-500);
    transition: var(--transition-normal);
}

.search-close:hover {
    color: var(--color-black);
}

.search-results {
    padding: var(--spacing-4);
    max-height: 400px;
    overflow-y: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-3);
    }
    
    .nav {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--color-black);
        display: flex;
        align-items: center;
        justify-content: center;
        transform: translateX(-100%);
        transition: var(--transition-normal);
        z-index: 1000;
    }
    
    .nav.active {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-6);
        text-align: center;
    }
    
    .nav-link {
        font-size: var(--font-size-xl);
        padding: var(--spacing-4);
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: calc(80px + var(--spacing-12)) 0 var(--spacing-12);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .phone-showcase {
        width: 300px;
        height: 400px;
        margin-top: var(--spacing-8);
    }
    
    .phone-item {
        width: 150px;
        height: 300px;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-4);
    }
    
    .brand-header {
        flex-direction: column;
        text-align: center;
    }
    
    .brand-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        width: 100%;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
}



/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1002;
    animation: whatsapp-pulse 2s infinite;
}

.whatsapp-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    color: white;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    position: relative;
}

.whatsapp-button:hover {
    background: #128C7E;
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
}

.whatsapp-button:before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid #25D366;
    border-radius: 50%;
    opacity: 0;
    animation: whatsapp-ring 2s infinite;
}

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

@keyframes whatsapp-ring {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
    }
}

/* Responsive para móviles */
@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
    }
    
    .whatsapp-button {
        width: 55px;
        height: 55px;
    }
    
    .whatsapp-button svg {
        width: 28px;
        height: 28px;
    }
}



/* Features Section */
.features-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: var(--spacing-16) 0;
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
    margin-top: var(--spacing-8);
}

.feature-card {
    background: var(--color-white);
    padding: var(--spacing-8);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 215, 0, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(255, 215, 0, 0.15);
    border-color: rgba(255, 215, 0, 0.3);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-3);
}

.feature-card p {
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* Responsive Features */
@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .feature-card {
        padding: var(--spacing-6);
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
    }
}


/* Used Phones Section */
.used-phones-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: var(--spacing-20) 0;
    min-height: 100vh;
}

.used-phones-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-12);
}

.info-card {
    background: var(--color-white);
    padding: var(--spacing-6);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    border: 2px solid var(--color-gold);
}

.info-card h3 {
    color: var(--color-black);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-lg);
}

.info-card p {
    color: var(--color-gray-600);
    font-weight: 600;
}

.used-phones-content {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    min-height: 400px;
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 200px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-gray-300);
    border-top: 4px solid var(--color-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-4);
}

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

.used-phone-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    margin-bottom: var(--spacing-3);
    background: var(--color-gray-100);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--color-gold);
    transition: var(--transition-normal);
}

.used-phone-item:hover {
    background: var(--color-gold-light);
    transform: translateX(5px);
}

.used-phone-info {
    flex: 1;
}

.used-phone-name {
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--spacing-1);
}

.used-phone-details {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.used-phone-price {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-gold-dark);
}

.used-phone-category {
    background: var(--color-gold);
    color: var(--color-black);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    display: inline-block;
}

.used-phones-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
}

@media (max-width: 768px) {
    .used-phones-info {
        grid-template-columns: 1fr;
    }
    
    .used-phone-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-3);
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-3);
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

.btn-back-to-new {
    background: var(--color-white);
    color: var(--color-black) !important;
    border: 2px solid var(--color-gold);
    font-weight: 600;
}

.btn-back-to-new:hover {
    background: var(--color-gold);
    color: var(--color-black) !important;
    transform: translateY(-2px);
}

/* Auto-refresh bar */
.auto-refresh-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    color: white;
    padding: 10px;
    text-align: center;
    font-weight: 600;
    z-index: 1001;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
    display: none;
}

.auto-refresh-bar.show {
    display: block;
    animation: slideUp 0.3s ease-out;
}

.refresh-progress {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.refresh-progress-fill {
    height: 100%;
    background: white;
    border-radius: 2px;
    transition: width 1s linear;
}

.refresh-countdown {
    font-size: 14px;
    margin-bottom: 5px;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

.error-message {
    background: #dc3545;
    color: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    margin: 20px 0;
}

.error-message h3 {
    margin-bottom: 10px;
    color: white;
}

.error-message p {
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.9);
}

.error-message button {
    background: white;
    color: #dc3545;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
}

.error-message button:hover {
    background: #f8f9fa;
}

/* Estilos para elementos de WhatsApp en usados */
.used-phone-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    margin-bottom: var(--spacing-3);
    background: var(--color-gray-100);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--color-gold);
    transition: var(--transition-normal);
    cursor: pointer;
}

.used-phone-item:hover {
    background: var(--color-gold-light);
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.used-phone-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.whatsapp-icon {
    color: #25D366;
    background: rgba(37, 211, 102, 0.1);
    padding: var(--spacing-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.used-phone-item:hover .whatsapp-icon {
    background: #25D366;
    color: white;
    transform: scale(1.1);
}

/* Notificación de caché */
.cache-notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: var(--spacing-4);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.3s ease-out;
    max-width: 300px;
}

.cache-notification.show {
    transform: translateX(0);
}

.cache-notification-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.cache-icon {
    font-size: 18px;
}

.cache-text {
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

/* Responsive para elementos de WhatsApp */
@media (max-width: 768px) {
    .used-phone-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-3);
    }
    
    .used-phone-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .cache-notification {
        right: 10px;
        left: 10px;
        max-width: none;
    }
}

/* Ajustar posición del WhatsApp cuando hay barra de auto-refresh */
body.auto-refresh-active .whatsapp-float {
    bottom: 80px;
    transition: bottom 0.3s ease-out;
}

/* Estilos para mostrar almacenamiento en productos con una sola variante */
.product-storage {
    margin: var(--spacing-2) 0;
}

.storage-info {
    display: inline-block;
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: 1px solid var(--color-gray-200);
}

/* Product Gallery Styles */
.product-gallery {
    width: 100%;
    max-width: 500px;
}

.gallery-main {
    width: 100%;
    height: 400px;
    background: var(--color-gray-100);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition-normal);
}

.gallery-thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: var(--spacing-3);
    max-width: 100%;
}

.gallery-thumb {
    width: 100%;
    height: 80px;
    object-fit: contain;
    border-radius: var(--border-radius-md);
    border: 2px solid var(--color-gray-300);
    cursor: pointer;
    transition: var(--transition-fast);
    background: var(--color-white);
    padding: var(--spacing-2);
}

.gallery-thumb:hover {
    border-color: var(--color-gold);
    transform: scale(1.05);
}

.gallery-thumb.active {
    border-color: var(--color-gold);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

/* Responsive gallery */
@media (max-width: 768px) {
    .gallery-main {
        height: 300px;
    }
    
    .gallery-thumbnails {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .gallery-thumb {
        height: 70px;
    }
}