/**
 * SEO Enhancement Styles for AISaaScore Theme
 * 
 * Optimized for Core Web Vitals and mobile-first design
 * Focus on software reviews and SaaS comparisons
 * 
 * @package AISaaScore
 * @since 1.0.8
 */

/* ===== PERFORMANCE OPTIMIZATIONS ===== */

/* Reduce layout shift with proper image containers */
.post-thumbnail {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    position: relative;
    background-color: var(--bg-secondary);
}

.post-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.post-thumbnail:hover img {
    transform: scale(1.02);
}

/* ===== TABLE OF CONTENTS ENHANCEMENTS ===== */
.table-of-contents {
    background: var(--bg-secondary);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    margin: var(--space-8) 0;
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
}

.table-of-contents h2 {
    font-size: var(--text-xl);
    margin-top: 0;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.table-of-contents h2::before {
    content: "📋";
    font-size: var(--text-lg);
}

.table-of-contents ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.table-of-contents li {
    margin-bottom: var(--space-2);
    position: relative;
    padding-left: var(--space-5);
}

.table-of-contents li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--brand-primary);
    font-weight: var(--font-bold);
}

.table-of-contents a {
    color: var(--brand-primary);
    text-decoration: none;
    font-size: var(--text-sm);
    line-height: 1.5;
    transition: color var(--transition-fast);
    font-weight: var(--font-medium);
}

.table-of-contents a:hover,
.table-of-contents a:focus {
    color: var(--brand-primary-hover);
    text-decoration: underline;
}

/* ===== BREADCRUMB ENHANCEMENTS ===== */
.breadcrumbs-wrapper {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
    padding: var(--space-3) 0;
}

.breadcrumbs-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.breadcrumbs {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin: 0;
}

.breadcrumbs a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-weight: var(--font-medium);
}

.breadcrumbs a:hover,
.breadcrumbs a:focus {
    color: var(--brand-primary);
    text-decoration: underline;
}

.breadcrumbs span[aria-current="page"] {
    color: var(--text-primary);
    font-weight: var(--font-semibold);
}

/* ===== ARTICLE HEADER OPTIMIZATIONS ===== */
.article-header {
    margin-bottom: var(--space-8);
    text-align: left;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
    color: var(--text-muted);
    font-size: var(--text-sm);
    margin-bottom: var(--space-4);
}

.article-meta time {
    color: var(--text-muted);
}

.article-meta .updated-date {
    color: var(--info);
    font-weight: var(--font-medium);
}

.article-category {
    background: var(--brand-primary);
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: background-color var(--transition-fast);
}

.article-category:hover {
    background-color: var(--brand-primary-hover);
    color: white;
}

.reading-time {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-weight: var(--font-medium);
}

.reading-time::before {
    content: "⏱️";
    font-size: var(--text-xs);
}

/* ===== CONTENT OPTIMIZATION ===== */
.text-lead {
    font-size: var(--text-xl);
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    font-weight: var(--font-normal);
    background: var(--bg-secondary);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--brand-primary);
}

/* ===== ENHANCED COMPARISON TABLES ===== */
.software-comparison-table-wrapper {
    margin: var(--space-8) 0;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.comparison-table-header {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-hover));
    color: white;
    padding: var(--space-6);
    text-align: center;
}

.comparison-table-header h3 {
    margin: 0 0 var(--space-2);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
}

.comparison-table-header p {
    margin: 0;
    opacity: 0.9;
    font-size: var(--text-base);
}

/* Mobile table optimizations */
@media (max-width: 768px) {
    .software-table,
    .comparison-table {
        font-size: var(--text-xs);
    }
    
    .software-table th,
    .comparison-table th,
    .software-table td,
    .comparison-table td {
        padding: var(--space-2);
    }
    
    .table-of-contents {
        margin: var(--space-4) 0;
        padding: var(--space-4);
    }
    
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }
    
    .breadcrumbs {
        font-size: var(--text-xs);
    }
}

/* ===== FOCUS KEYWORD HIGHLIGHTING (ADMIN ONLY) ===== */
.admin-bar .focus-keyword-highlight {
    background-color: rgba(37, 99, 235, 0.2);
    padding: 0 2px;
    border-radius: 2px;
    border-bottom: 1px dotted var(--brand-primary);
}

/* ===== SEO META BOX STYLES ===== */
.aisaascore-seo-meta .form-table th {
    width: 150px;
    vertical-align: top;
    padding-top: 15px;
}

.aisaascore-seo-meta .form-table td {
    padding-top: 10px;
}

.aisaascore-seo-meta textarea,
.aisaascore-seo-meta input[type="text"],
.aisaascore-seo-meta input[type="number"] {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.aisaascore-seo-meta .description {
    font-style: italic;
    color: #666;
    margin-top: 5px;
}

/* ===== STRUCTURED DATA PREVIEW ===== */
.structured-data-preview {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    margin: var(--space-4) 0;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    max-height: 300px;
    overflow-y: auto;
}

/* ===== SOFTWARE RATING DISPLAY ===== */
.software-rating {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin: var(--space-4) 0;
    padding: var(--space-3);
    background: var(--success-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--success);
}

.software-rating .rating-score {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--success);
}

.software-rating .rating-text {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.software-rating .rating-stars {
    display: flex;
    gap: 2px;
}

.software-rating .star {
    width: 20px;
    height: 20px;
    color: var(--warning);
}

.software-rating .star.empty {
    color: var(--text-disabled);
}

/* ===== CALL-TO-ACTION OPTIMIZATION ===== */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--brand-primary);
    color: white;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: var(--font-semibold);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
}

.cta-button:hover,
.cta-button:focus {
    background: var(--brand-primary-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.cta-button::after {
    content: "→";
    font-size: var(--text-lg);
    transition: transform var(--transition-fast);
}

.cta-button:hover::after {
    transform: translateX(2px);
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
    .post-thumbnail img,
    .cta-button,
    .table-of-contents a {
        transition: none !important;
    }
    
    .cta-button:hover {
        transform: none !important;
    }
}

/* High contrast mode improvements */
@media (prefers-contrast: high) {
    .table-of-contents {
        border: 2px solid;
    }
    
    .breadcrumbs a,
    .table-of-contents a {
        text-decoration: underline;
    }
    
    .cta-button {
        border: 2px solid white;
    }
}

/* ===== PRINT OPTIMIZATIONS ===== */
@media print {
    .table-of-contents,
    .breadcrumbs-wrapper,
    .cta-button {
        display: none !important;
    }
    
    .article-header {
        break-after: avoid;
    }
    
    .software-comparison {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}