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

:root {
    --samsung-blue: #1428A0;
    --samsung-dark: #000000;
    --samsung-light: #FFFFFF;
    --samsung-gray: #5F5F5F;
    --samsung-light-gray: #F4F4F4;
    --samsung-border: #E0E0E0;
    --accent-blue: #0066FF;
    --success-green: #00A86B;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--samsung-gray);
    background-color: var(--samsung-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: var(--samsung-light);
    color: var(--samsung-dark);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-bottom: 3px solid var(--samsung-blue);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo-section {
    display: flex;
    align-items: center;
}

.logos-container {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.logo-empresa {
    height: 135px;
    width: auto;
    object-fit: contain;
    max-width: 185px;
}

.logo-samsung {
    height: 135px;
    width: auto;
    object-fit: contain;
    max-width: 230px;
}

.nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.nav-link {
    color: var(--samsung-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    position: relative;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--samsung-blue);
    background-color: rgba(0, 102, 255, 0.1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--samsung-blue);
    transition: width 0.3s;
}

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

.nav-link.active {
    color: var(--samsung-blue);
    background-color: rgba(0, 102, 255, 0.1);
}

/* Botón Hamburguesa (Menu Toggle) */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 35px;
    height: 35px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    transition: all 0.3s ease;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background-color: var(--samsung-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.menu-toggle:hover .hamburger-line {
    background-color: var(--samsung-blue);
}

/* Animación del botón cuando está activo */
.menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Banner Informativo */
.info-banner {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: #1565c0;
    padding: 0.75rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid #90caf9;
}

.info-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.banner-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    position: relative;
    z-index: 1;
}

.banner-icon {
    flex-shrink: 0;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
    animation: bounce 2s ease-in-out infinite;
    color: #1976d2;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    25% {
        transform: translateY(-4px) scale(1.05);
    }
    50% {
        transform: translateY(0) scale(1);
    }
    75% {
        transform: translateY(-2px) scale(1.02);
    }
}

.banner-text {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 500;
    text-align: center;
    line-height: 1.4;
}

.banner-text strong {
    font-weight: 700;
    margin-right: 0.25rem;
}

.banner-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: #2e7d32;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Hero Section */
.hero {
    background-image: url('resources/img/landspace-image-3.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--samsung-dark);
    padding: 2rem 0;
    text-align: center;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(240, 240, 240, 0.35);
    z-index: 0;
}

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

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--samsung-dark);
    text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.8);
}

.hero-subtitle-company {
    font-size: 2rem;
    margin-bottom: 2rem;
    font-weight: 600;
    color: var(--samsung-blue);
    text-shadow: 1px 1px 3px rgba(255, 255, 255, 0.8);
}

.hero-subtitle {
    font-size: 1.2rem;
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.9;
    color: var(--samsung-dark);
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.75);
    padding: 1.5rem 2rem;
    border-radius: 15px;
    backdrop-filter: blur(5px);
}

.hero-logo {
    margin-top: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-samsung-hero {
    height: 48px;
    width: auto;
    color: var(--samsung-blue);
}

/* Section Title */
.section-title {
    font-size: 2rem;
    color: var(--samsung-dark);
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 600;
}

/* Service Steps Section */
#pasos-servicio {
    padding: 5rem 0;
    background-color: var(--samsung-light);
}

.service-steps-section {
    max-width: 1200px;
    margin: 0 auto;
}

.steps-title {
    font-size: 2.5rem;
    color: var(--samsung-dark);
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 700;
}

.steps-subtitle {
    font-size: 1.2rem;
    color: var(--samsung-gray);
    text-align: center;
    margin-bottom: 4rem;
    font-weight: 400;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.step-card {
    background: var(--samsung-light);
    border-radius: 15px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid var(--samsung-border);
}

.step-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 102, 255, 0.15);
    border-color: var(--accent-blue);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-blue), var(--samsung-blue));
    color: var(--samsung-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.step-icon {
    margin: 2rem auto 1.5rem;
    color: var(--accent-blue);
    display: flex;
    justify-content: center;
    transition: transform 0.3s ease;
}

.step-card:hover .step-icon {
    transform: scale(1.1) rotate(5deg);
}

.step-icon svg {
    width: 60px;
    height: 60px;
    stroke-width: 2;
}

.step-title {
    font-size: 1.5rem;
    color: var(--samsung-dark);
    margin-bottom: 1rem;
    font-weight: 600;
}

.step-description {
    font-size: 1rem;
    color: var(--samsung-gray);
    line-height: 1.7;
    margin: 0;
}

/* Product Selection */
.product-selection {
    padding: 4rem 0;
    background-color: var(--samsung-light-gray);
}

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

.product-card {
    background: var(--samsung-light);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.2);
}

.product-card.active {
    border-color: var(--accent-blue);
    background: linear-gradient(135deg, #E3F2FD 0%, #FFFFFF 100%);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.product-card h4 {
    color: var(--samsung-dark);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.product-card p {
    font-size: 0.9rem;
    color: var(--samsung-gray);
}

/* Search Section */
.search-section {
    padding: 4rem 0;
}

.search-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--samsung-dark);
    font-size: 0.9rem;
}

.text-input,
.select-input {
    padding: 0.75rem;
    border: 2px solid var(--samsung-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
    background-color: var(--samsung-light);
}

.text-input:focus,
.select-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: var(--samsung-light);
}

.btn-primary:hover {
    background-color: var(--samsung-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

.btn-secondary {
    background-color: var(--samsung-light);
    color: var(--accent-blue);
    border: 2px solid var(--accent-blue);
}

.btn-secondary:hover {
    background-color: var(--accent-blue);
    color: var(--samsung-light);
}

/* Results Container */
.results-container {
    margin-top: 3rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--samsung-border);
}

.results-header h4 {
    color: var(--samsung-dark);
    font-size: 1.5rem;
}

.results-count {
    background-color: var(--accent-blue);
    color: var(--samsung-light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.result-card {
    background: var(--samsung-light);
    border: 2px solid var(--samsung-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.result-card:hover {
    border-color: var(--accent-blue);
    box-shadow: 0 4px 16px rgba(0, 102, 255, 0.15);
}

.result-card h5 {
    color: var(--samsung-dark);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.result-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.info-icon {
    min-width: 20px;
}

.result-card .btn {
    width: 100%;
    margin-top: 1rem;
}

/* Contact Section */
.contact-section {
    padding: 4rem 0;
    background-color: var(--samsung-light-gray);
}

.section-subtitle {
    text-align: center;
    color: var(--samsung-gray);
    font-size: 1.1rem;
    margin-top: -1rem;
    margin-bottom: 3rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

/* Contact Form */
.contact-form-container {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.form-title {
    font-size: 1.8rem;
    color: var(--samsung-dark);
    margin-bottom: 0.5rem;
}

.form-description {
    color: var(--samsung-gray);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--samsung-dark);
    font-size: 0.95rem;
}

.required {
    color: #e74c3c;
    font-weight: bold;
}

.form-group input,
.form-group textarea {
    padding: 0.9rem 1.2rem;
    border: 2px solid var(--samsung-border);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background-color: var(--samsung-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--samsung-blue);
    box-shadow: 0 0 0 3px rgba(20, 40, 160, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    margin-top: 1rem;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

.btn-submit:active {
    transform: translateY(-1px);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Form Message (Success/Error) */
.form-message {
    padding: 1rem 1.2rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.5;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-message.success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.form-message.error {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.form-message::before {
    content: '';
    font-size: 1.5rem;
    line-height: 1;
}

.form-message.success::before {
    content: '✓';
    color: #28a745;
    font-weight: bold;
}

.form-message.error::before {
    content: '✕';
    color: #dc3545;
    font-weight: bold;
}

/* Contact Info Container */
.contact-info-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-title {
    font-size: 1.8rem;
    color: var(--samsung-dark);
    margin-bottom: 0.5rem;
}

.info-description {
    color: var(--samsung-gray);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    background: var(--samsung-light);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-card h4 {
    color: var(--samsung-dark);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.contact-card p {
    margin-bottom: 1.5rem;
    color: var(--samsung-gray);
}

/* Guide Section */
.guide-section {
    padding: 4rem 0;
}

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

.step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.step-number {
    background: linear-gradient(135deg, var(--accent-blue), var(--samsung-blue));
    color: var(--samsung-light);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step p {
    color: var(--samsung-gray);
    line-height: 1.6;
}

/* Footer */
.footer {
    background-color: var(--samsung-light);
    color: var(--samsung-dark);
    padding: 3rem 0 1.5rem;
    border-top: 3px solid var(--samsung-blue);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logos {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer-logo-empresa {
    height: 100px;
    width: auto;
    object-fit: contain;
}

.footer-logo-samsung {
    height: 40%;
    width: auto;
    object-fit: contain;
}

.footer-brand-text {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--samsung-blue);
    margin: 0;
}

.footer-description {
    font-size: 0.95rem;
    color: var(--samsung-gray);
    line-height: 1.6;
    max-width: 450px;
    margin: 0;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    color: var(--samsung-dark);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

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

.footer-column ul li {
    margin-bottom: 0.7rem;
}

.footer-column ul li a {
    color: var(--samsung-gray);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.footer-column ul li a:hover {
    color: var(--samsung-blue);
}

.footer-column ul li span {
    color: var(--samsung-dark);
    font-size: 0.95rem;
}

.footer-bottom {
    padding-top: 1.5rem;
}

.footer-bottom-content {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    flex-wrap: wrap;
    gap: 1rem;
    text-align: center;
}

.footer-copyright {
    color: var(--samsung-gray);
    font-size: 0.9rem;
    margin: 0;
}

.footer-social {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.social-link {
    width: 35px;
    height: 35px;
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--samsung-dark);
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background-color: var(--samsung-blue);
    color: var(--samsung-light);
    transform: translateY(-3px);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

/* Product Detail Sections */
.product-detail-section {
    padding: 4rem 0;
    background-color: var(--samsung-light);
}

.product-detail-section.alternate {
    background-color: var(--samsung-light-gray);
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 2rem;
}

.product-detail-info h4 {
    color: var(--samsung-dark);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.product-detail-info p {
    color: var(--samsung-gray);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.features-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.features-list li {
    color: var(--samsung-gray);
    font-size: 1rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--samsung-border);
}

.features-list li:last-child {
    border-bottom: none;
}

.product-detail-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.placeholder-image {
    width: 100%;
    max-width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--samsung-light-gray) 0%, #E3F2FD 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    overflow: hidden;
}

.placeholder-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

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

.image-caption {
    margin-top: 1rem;
    color: var(--samsung-gray);
    font-style: italic;
    font-size: 0.9rem;
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all 0.3s ease;
    text-decoration: none;
    cursor: pointer;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.6);
    width: 160px;
    border-radius: 30px;
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
    fill: white;
    transition: all 0.3s ease;
}

.whatsapp-float:hover svg {
    width: 28px;
    height: 28px;
}

.whatsapp-text {
    position: absolute;
    opacity: 0;
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    margin-left: 40px;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.whatsapp-float:hover .whatsapp-text {
    opacity: 1;
}

/* Animación de pulso */
@keyframes pulse {
    0% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.8);
    }
    100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
}

.whatsapp-float {
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    animation: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .nav {
        gap: 1rem;
    }
    
    .nav-link {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }
    
    .logos-container {
        gap: 1.5rem;
    }
    
    .logo-empresa {
        height: 60px;
        max-width: 130px;
    }
    
    .logo-samsung {
        height: 50px;
        max-width: 160px;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0.75rem 0;
    }
    
    .header .container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    /* Banner responsive */
    .info-banner {
        padding: 0.6rem 0;
    }
    
    .banner-content {
        gap: 0.5rem;
    }
    
    .banner-icon {
        width: 20px;
        height: 20px;
    }
    
    .banner-text {
        font-size: 0.85rem;
    }
    
    .banner-text strong {
        display: block;
        margin-bottom: 0.15rem;
    }
    
    .banner-price {
        font-size: 1rem;
    }
    
    /* Mostrar botón hamburguesa en móvil */
    .menu-toggle {
        display: flex;
        order: 3;
    }
    
    .logo-section {
        order: 1;
    }
    
    /* Ocultar navegación por defecto en móvil */
    .nav {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--samsung-light);
        flex-direction: column;
        width: 100%;
        padding: 1rem 0;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        z-index: 1000;
        border-top: 1px solid var(--samsung-border);
    }
    
    /* Mostrar navegación cuando está activa */
    .nav.active {
        display: flex;
        animation: slideDown 0.3s ease-out;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .nav-link {
        font-size: 0.95rem;
        padding: 0.8rem 1.5rem;
        border-radius: 0;
        width: 100%;
        text-align: left;
        border-bottom: 1px solid var(--samsung-border);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .nav-link p {
        line-height: 1.4;
    }
    
    .logos-container {
        flex-direction: row;
        gap: 1rem;
        justify-content: flex-start;
    }
    
    .logo-empresa {
        height: 45px;
        max-width: 100px;
    }
    
    .logo-samsung {
        height: 38px;
        max-width: 120px;
    }
    
    .hero {
        padding: 2rem 0;
        min-height: 100vh;
        background-attachment: scroll;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle-company {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.7;
        padding: 0 1rem;
    }
    
    /* WhatsApp Button Tablet */
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 20px;
        left: 20px;
    }
    
    .whatsapp-float svg {
        width: 28px;
        height: 28px;
    }
    
    .whatsapp-float:hover {
        width: 55px;
        border-radius: 50%;
    }
    
    .whatsapp-text {
        display: none;
    }
    
    /* Service Steps Responsive */
    #pasos-servicio {
        padding: 3rem 0;
    }
    
    .steps-title {
        font-size: 1.8rem;
    }
    
    .steps-subtitle {
        font-size: 1rem;
        margin-bottom: 2.5rem;
    }
    
    .steps-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .step-card {
        padding: 2rem 1.5rem;
    }
    
    .step-icon svg {
        width: 50px;
        height: 50px;
    }
    
    .step-title {
        font-size: 1.3rem;
    }
    
    .step-description {
        font-size: 0.95rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .search-controls {
        grid-template-columns: 1fr;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .product-detail-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* Contact Form Responsive */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-form-container,
    .contact-info-container {
        order: 0;
    }
    
    .form-title,
    .info-title {
        font-size: 1.5rem;
    }
    
    .contact-cards {
        gap: 1.2rem;
    }
    
    .contact-card {
        padding: 1.5rem;
    }
    
    /* Footer Responsive */
    .footer {
        padding: 2.5rem 0 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-logos {
        justify-content: center;
    }
    
    .footer-logo-empresa {
        height: 45px;
    }
    
    .footer-logo-samsung {
        height: 35px;
    }
    
    .footer-brand-text {
        text-align: center;
        font-size: 1.2rem;
    }
    
    .footer-description {
        text-align: center;
        max-width: 100%;
        font-size: 0.9rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-column h4 {
        text-align: center;
    }
    
    .footer-column ul {
        text-align: center;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-link {
        font-size: 0.75rem;
        padding: 0.35rem 0.6rem;
    }
    
    .logo-empresa {
        height: 45px;
        max-width: 95px;
    }
    
    .logo-samsung {
        height: 38px;
        max-width: 120px;
    }
    
    .logos-container {
        gap: 1rem;
    }
    
    .hero {
        padding: 1.5rem 0;
        min-height: 100vh;
        background-attachment: scroll;
    }
    
    .hero::before {
        background: linear-gradient(135deg, rgba(245, 245, 245, 0.80) 0%, rgba(235, 235, 235, 0.85) 100%);
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-subtitle-company {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
        padding: 0 0.5rem;
    }
    
    /* Contact Form Mobile */
    .contact-form-container {
        padding: 1.5rem;
    }
    
    .form-title,
    .info-title {
        font-size: 1.3rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 0.75rem 1rem;
        font-size: 0.95rem;
    }
    
    .btn-submit {
        padding: 0.9rem 1.5rem;
        font-size: 1rem;
    }
    
    .contact-card {
        padding: 1.2rem;
    }
    
    .contact-icon svg {
        width: 32px;
        height: 32px;
    }
    
    /* WhatsApp Button Mobile */
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 15px;
        left: 15px;
    }
    
    .whatsapp-float svg {
        width: 26px;
        height: 26px;
    }
    
    /* Service Steps Mobile */
    #pasos-servicio {
        padding: 2rem 0;
    }
    
    .steps-title {
        font-size: 1.5rem;
    }
    
    .steps-subtitle {
        font-size: 0.9rem;
        margin-bottom: 2rem;
    }
    
    .steps-container {
        gap: 2rem;
    }
    
    .step-card {
        padding: 1.5rem 1rem;
    }
    
    .step-number {
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
        top: -15px;
    }
    
    .step-icon {
        margin: 1.5rem auto 1rem;
    }
    
    .step-icon svg {
        width: 45px;
        height: 45px;
    }
    
    .step-title {
        font-size: 1.2rem;
    }
    
    .step-description {
        font-size: 0.9rem;
    }
}

/* Loading Animation */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
}

.loading::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 4px solid var(--samsung-light-gray);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.no-results {
    text-align: center;
    padding: 3rem;
    color: var(--samsung-gray);
}

.no-results h4 {
    color: var(--samsung-dark);
    margin-bottom: 1rem;
}

/* ============================================
   FOOTER DISCLAIMER
   ============================================ */

.footer-disclaimer {
    background: rgba(0, 0, 0, 0.03);
    border-left: 4px solid var(--samsung-blue);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.footer-disclaimer p {
    color: var(--samsung-gray);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
    text-align: center;
}

.footer-disclaimer strong {
    color: var(--samsung-blue);
    font-weight: 600;
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

/* ============================================
   BOTÓN FLOTANTE DE WHATSAPP
   ============================================ */

   .whatsapp {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

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

.whatsapp-icon {
    width: 32px;
    height: 32px;
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .whatsapp {
        width: 56px;
        height: 56px;
        bottom: 20px;
        right: 20px;
    }
    
    .whatsapp-icon {
        width: 28px;
        height: 28px;
    }
}

@media (max-width: 480px) {
    .whatsapp {
        width: 50px;
        height: 50px;
        bottom: 15px;
        right: 15px;
    }
    
    .whatsapp-icon {
        width: 26px;
        height: 26px;
    }
    
    /* Optimizaciones adicionales para móviles */
    .hero-title {
        font-size: 1.5rem;
        padding: 0 1rem;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
        padding: 0 1rem;
        line-height: 1.6;
    }
    
    .steps-title {
        font-size: 1.5rem;
        padding: 0 1rem;
    }
    
    .steps-subtitle {
        padding: 0 1rem;
    }
    
    .product-detail-section {
        padding: 2.5rem 0;
    }
    
    .product-detail-info h4 {
        font-size: 1.2rem;
    }
    
    .product-detail-info p {
        font-size: 0.9rem;
    }
    
    .features-list li {
        font-size: 0.85rem;
        padding: 0.4rem 0;
    }
    
    .placeholder-image {
        max-width: 100%;
        height: 300px;
    }
    
    .btn {
        width: 100%;
        padding: 0.7rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .contact-card {
        padding: 1.5rem;
    }
    
    .contact-icon {
        font-size: 2.5rem;
    }
    
    .contact-card h4 {
        font-size: 1.1rem;
    }
    
    .contact-card p {
        font-size: 0.85rem;
    }
    
    .footer {
        padding: 2rem 0 1rem;
    }
    
    .footer-logo-empresa {
        height: 40px;
    }
    
    .footer-logo-samsung {
        height: 32px;
    }
    
    .footer-brand-text {
        font-size: 1.1rem;
    }
    
    .footer-description {
        font-size: 0.85rem;
    }
    
    .footer-column h4 {
        font-size: 1rem;
    }
    
    .footer-column ul li {
        font-size: 0.85rem;
        margin-bottom: 0.5rem;
    }
    
    .footer-disclaimer {
        padding: 1rem;
        margin: 1.5rem 0 1rem;
    }
    
    .footer-disclaimer p {
        font-size: 0.8rem;
        line-height: 1.5;
    }
    
    .footer-disclaimer strong {
        font-size: 0.9rem;
    }
    
    .footer-copyright {
        font-size: 0.8rem;
    }
    
    .social-link {
        width: 32px;
        height: 32px;
    }
    
    .social-link svg {
        width: 16px;
        height: 16px;
    }
}

/* Extra Small Devices (< 360px) */
@media (max-width: 360px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-link {
        font-size: 0.65rem;
        padding: 0.25rem 0.4rem;
    }
    
    .logo-empresa {
        height: 40px;
    }
    
    .logo-samsung {
        height: 32px;
    }
    
    .hero-title {
        font-size: 1.3rem;
    }
    
    .hero-subtitle-company {
        font-size: 1.1rem;
    }
    
    .hero-subtitle {
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    .step-card {
        padding: 1.2rem 0.8rem;
    }
    
    .step-title {
        font-size: 1rem;
    }
    
    .placeholder-image {
        height: 250px;
    }
    
    .whatsapp {
        width: 48px;
        height: 48px;
        bottom: 12px;
        right: 12px;
    }
    
    .whatsapp-icon {
        width: 24px;
        height: 24px;
    }
    
    .footer-logo-empresa {
        height: 35px;
    }
    
    .footer-logo-samsung {
        height: 28px;
    }
}

/* Mejoras generales de touch y usabilidad móvil */
@media (hover: none) and (pointer: coarse) {
    /* Dispositivos táctiles */
    .nav-link,
    .btn,
    .social-link,
    .whatsapp {
        min-height: 44px;
        min-width: 44px;
    }
    
    .nav-link {
        padding: 0.5rem 0.8rem;
    }
}

/* Landscape mode para teléfonos */
@media (max-width: 896px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 3rem 0;
    }
    
    .section-title {
        margin-bottom: 1.5rem;
    }
    
    .product-detail-section {
        padding: 3rem 0;
    }
}

/* ===================================
   ERROR PAGE STYLES
   =================================== */
.error-section {
    min-height: calc(100vh - 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--samsung-light-gray) 0%, #e8e8e8 100%);
    position: relative;
    overflow: hidden;
}

.error-section::before {
    content: '404';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 25rem;
    font-weight: 900;
    color: rgba(0, 0, 0, 0.03);
    z-index: 0;
    pointer-events: none;
    line-height: 1;
}

.error-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.error-code {
    font-size: 8rem;
    font-weight: 900;
    color: var(--samsung-blue);
    line-height: 1;
    margin-bottom: 1rem;
    text-shadow: 4px 4px 0px rgba(20, 40, 160, 0.1);
    animation: errorPulse 2s ease-in-out infinite;
}

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

.error-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--samsung-dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.error-message {
    font-size: 1.2rem;
    color: var(--samsung-gray);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.error-suggestions {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: left;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.error-suggestions h3 {
    font-size: 1.3rem;
    color: var(--samsung-dark);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.error-suggestions h3::before {
    content: '💡';
    font-size: 1.5rem;
}

.error-suggestions ul {
    list-style: none;
    padding: 0;
}

.error-suggestions ul li {
    padding: 0.6rem 0;
    color: var(--samsung-gray);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.error-suggestions ul li::before {
    content: '✓';
    color: var(--success-green);
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.error-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.error-actions .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--samsung-blue) 0%, var(--accent-blue) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--samsung-blue);
    border: 2px solid var(--samsung-blue);
}

.btn-secondary:hover {
    background: var(--samsung-blue);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(20, 40, 160, 0.3);
}

.error-links {
    margin-top: 3rem;
}

.error-links h4 {
    font-size: 1.2rem;
    color: var(--samsung-dark);
    margin-bottom: 1.5rem;
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

.quick-link {
    background: white;
    padding: 1.5rem 1rem;
    border-radius: 15px;
    text-decoration: none;
    color: var(--samsung-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.quick-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    color: var(--samsung-blue);
}

.link-icon {
    font-size: 2rem;
    transition: transform 0.3s ease;
}

.quick-link:hover .link-icon {
    transform: scale(1.2);
}

.quick-link span:last-child {
    font-size: 0.95rem;
    font-weight: 600;
}

/* Responsive para página de error */
@media (max-width: 768px) {
    .error-section::before {
        font-size: 15rem;
    }
    
    .error-code {
        font-size: 5rem;
    }
    
    .error-title {
        font-size: 1.8rem;
    }
    
    .error-message {
        font-size: 1rem;
    }
    
    .error-suggestions {
        padding: 1.5rem;
    }
    
    .error-actions {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .error-actions .btn {
        width: 100%;
    }
    
    .quick-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .error-section {
        padding: 2rem 0;
    }
    
    .error-section::before {
        font-size: 10rem;
    }
    
    .error-code {
        font-size: 4rem;
    }
    
    .error-title {
        font-size: 1.5rem;
    }
    
    .error-suggestions h3 {
        font-size: 1.1rem;
    }
    
    .error-suggestions ul li {
        font-size: 0.9rem;
    }
    
    .quick-links {
        gap: 0.8rem;
    }
    
    .quick-link {
        padding: 1rem 0.8rem;
    }
    
    .link-icon {
        font-size: 1.5rem;
    }
}