/* Variables CSS */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --text-muted: #9ca3af;
    --bg-white: #ffffff;
    --bg-gray-50: #f9fafb;
    --bg-gray-100: #f3f4f6;
    --bg-gray-900: #111827;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --transition: all 0.3s ease;
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-display: 'Playfair Display', serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

/* Utilidades */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

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

/* Loading Spinner */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    text-align: center;
}

.spinner i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.spinner p {
    color: var(--text-light);
    font-weight: 500;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 0.25rem;
}

.hamburger span {
    width: 1.5rem;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-family: var(--font-family-display);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-benefits {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.benefit {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

.benefit i {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.hero-image {
    display: flex;
    justify-content: center;
}

.hero-card {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: rotate(3deg);
    transition: var(--transition);
}

.hero-card:hover {
    transform: rotate(0deg) scale(1.05);
}

.hero-card img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.hero-card-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.quality-badge {
    background: rgba(255, 255, 255, 0.95);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--accent-color);
    box-shadow: var(--shadow-md);
}

.quality-badge i {
    color: var(--accent-color);
}

/* Products Section */
.products-section {
    padding: 5rem 0;
}

.products-section.alt-bg {
    background: var(--bg-gray-50);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-gray-100);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-family-display);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.products-grid.loading {
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.products-grid.loading::before {
    content: '';
    width: 40px;
    height: 40px;
    border: 4px solid var(--bg-gray-100);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

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

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

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

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

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

.product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.product-info {
    padding: 1.5rem;
}

.product-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.4;
    color: var(--text-dark);
}

.product-price {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.current-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.original-price {
    font-size: 1rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

.price-discount {
    background: var(--secondary-color);
    color: white;
    padding: 0.125rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.product-cta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.btn-details {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-details:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-buy {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.875rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-buy:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-wishlist {
    background: white;
    border: 2px solid var(--border-color);
    color: var(--text-light);
    padding: 0.875rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.btn-wishlist:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* About Section */
.about-section {
    padding: 5rem 0;
    background: white;
}

.about-content h2 {
    font-family: var(--font-family-display);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
}

.about-content p {
    font-size: 1.125rem;
    color: var(--text-light);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    display: flex;
    gap: 1rem;
    text-align: left;
}

.feature-icon {
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    background: var(--bg-gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.25rem;
}

.feature-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.feature-content p {
    color: var(--text-light);
    margin: 0;
    text-align: left;
    font-size: 1rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--bg-gray-900);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

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

.footer-column h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

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

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column ul li a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
}

.affiliate-disclosure {
    background: #1f2937;
    border: 1px solid #374151;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.affiliate-disclosure i {
    color: var(--accent-color);
    margin-right: 0.5rem;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-benefits {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero-cta {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-benefits {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Scroll suave */
html {
    scroll-behavior: smooth;
}

/* Mejoras de accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Guide Section Styles */
.guide-section {
    padding: 5rem 0;
    background: var(--bg-gray-50);
}

.guide-header {
    text-align: center;
    margin-bottom: 4rem;
}

.guide-content {
    max-width: 1000px;
    margin: 0 auto;
}

.guide-intro {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
    padding: 2rem;
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.guide-intro h3 {
    font-family: var(--font-family-display);
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.guide-intro p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.guide-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.guide-section-content {
    margin-bottom: 4rem;
    padding: 2.5rem;
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.guide-section-content h3 {
    font-family: var(--font-family-display);
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

/* Material Cards */
.material-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.material-card {
    padding: 2rem;
    background: var(--bg-gray-50);
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.material-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.material-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.material-icon i {
    font-size: 1.5rem;
    color: white;
}

.material-card h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.material-card p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.material-card ul {
    list-style: none;
    text-align: left;
}

.material-card ul li {
    padding: 0.5rem 0;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
}

.material-card ul li:last-child {
    border-bottom: none;
}

/* Weave Comparison */
.weave-comparison {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

.weave-item {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: center;
    padding: 2rem;
    background: var(--bg-gray-50);
    border-radius: var(--border-radius);
}

.weave-item:nth-child(even) {
    grid-template-columns: 2fr 1fr;
}

.weave-item:nth-child(even) img {
    order: 2;
}

.weave-item img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.weave-content h4 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.weave-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.weave-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.weave-specs span {
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
}

/* GSM Guide */
.gsm-guide {
    margin-top: 2rem;
}

.gsm-intro p {
    font-size: 1.1rem;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 2rem;
    line-height: 1.7;
}

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

.gsm-item {
    text-align: center;
    padding: 2rem;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.gsm-item.low {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border: 2px solid #3b82f6;
}

.gsm-item.medium {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border: 2px solid #10b981;
}

.gsm-item.high {
    background: linear-gradient(135deg, #fed7d7 0%, #feb2b2 100%);
    border: 2px solid #f56565;
}

.gsm-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.gsm-item h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.gsm-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Comparison Table */
.comparison-table {
    margin-top: 2rem;
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    background: var(--gradient-primary);
    color: white;
    padding: 1.5rem;
}

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

.comparison-col i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.comparison-col h4 {
    font-size: 1.2rem;
    font-weight: 600;
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid var(--border-color);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-label {
    padding: 1rem;
    background: var(--bg-gray-50);
    font-weight: 600;
    color: var(--text-dark);
}

.comparison-value {
    padding: 1rem;
    color: var(--text-light);
    text-align: center;
}

/* Certifications */
.certifications {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

.cert-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: center;
    padding: 2rem;
    background: var(--bg-gray-50);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--secondary-color);
}

.cert-logo {
    width: 4rem;
    height: 4rem;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-logo i {
    font-size: 1.5rem;
    color: white;
}

.cert-content h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.cert-content p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Care Tips */
.care-tips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.care-section {
    padding: 2rem;
    background: var(--bg-gray-50);
    border-radius: var(--border-radius);
    border-top: 4px solid var(--accent-color);
}

.care-section h4 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.care-section h4 i {
    color: var(--accent-color);
}

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

.care-section ul li {
    padding: 0.75rem 0;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 1.5rem;
}

.care-section ul li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.care-section ul li:last-child {
    border-bottom: none;
}

/* Buying Guide */
.buying-guide {
    margin-top: 2rem;
}

.guide-step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: start;
    margin-bottom: 2rem;
    padding: 2rem;
    background: var(--bg-gray-50);
    border-radius: var(--border-radius);
}

.step-number {
    width: 3rem;
    height: 3rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}

.step-content h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.step-content p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Trends Grid */
.trends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.trend-item {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.trend-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.trend-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.trend-item h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin: 1.5rem 1.5rem 1rem;
}

.trend-item p {
    color: var(--text-light);
    line-height: 1.6;
    margin: 0 1.5rem 1.5rem;
}

/* Guide Conclusion */
.guide-conclusion {
    margin-top: 3rem;
    padding: 3rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.guide-conclusion h3 {
    font-family: var(--font-family-display);
    font-size: 2rem;
    margin-bottom: 2rem;
}

.guide-conclusion p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.guide-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.guide-cta .btn {
    background: white;
    color: var(--primary-color);
    border: 2px solid white;
}

.guide-cta .btn:hover {
    background: transparent;
    color: white;
    border-color: white;
}

/* Logo Link Styles */
.logo {
    text-decoration: none;
    transition: var(--transition);
}

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

/* Responsive Design for Guide Section */
@media (max-width: 768px) {
    .guide-intro {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .weave-item {
        grid-template-columns: 1fr !important;
        text-align: center;
    }
    
    .weave-item img {
        order: -1 !important;
    }
    
    .comparison-header,
    .comparison-row {
        grid-template-columns: 1fr;
    }
    
    .comparison-label {
        background: var(--primary-color);
        color: white;
        text-align: center;
    }
    
    .cert-item {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .guide-step {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto;
    }
    
    .material-grid {
        grid-template-columns: 1fr;
    }
    
    .gsm-scale {
        grid-template-columns: 1fr;
    }
    
    .care-tips {
        grid-template-columns: 1fr;
    }
    
    .trends-grid {
        grid-template-columns: 1fr;
    }
    
    .guide-cta {
        flex-direction: column;
        align-items: center;
    }
}