/**
 * iBridge Enterprise SEO Enhancements CSS
 * Optimizations for search engine performance
 */

/* Core Web Vitals Optimization */
.seo-lazy-loaded {
    opacity: 1;
    transition: opacity 0.3s ease-in-out;
}

.lazy {
    opacity: 0;
}

/* Structured Data Styling */
.breadcrumb {
    font-size: 0.875rem;
    color: #666;
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: #0066cc;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* SEO-Friendly Content Structure */
.seo-content h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.seo-content h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin: 2rem 0 1rem 0;
    line-height: 1.3;
}

.seo-content h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin: 1.5rem 0 0.75rem 0;
    line-height: 1.4;
}

/* Image Optimization for SEO */
.seo-image {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Loading States */
.loading-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

/* Accessibility and SEO */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* Print Styles for SEO */
@media print {
    .breadcrumb,
    .seo-content h1,
    .seo-content h2,
    .seo-content h3 {
        page-break-after: avoid;
    }
    
    .seo-image {
        page-break-inside: avoid;
    }
}

/* Core Web Vitals Layout Optimization */
.hero-section {
    contain: layout;
}

.content-wrapper {
    contain: layout style;
}

/* Performance Hints */
.critical-resource {
    font-display: swap; /* For font optimization */
}