/**
 * Skill Farm SEO Engine - Premium Theme Styles
 * Based on test-pe-advisor-demo.html design
 */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Inter:wght@300;400;500;600&display=swap');

:root {
    --sfse-primary: #2c2c2c;
    --sfse-gold: #d4af37;
    --sfse-gold-hover: #b8941f;
    --sfse-bg-primary: #faf8f5;
    --sfse-bg-secondary: #f5f2ed;
    --sfse-bg-tertiary: #e8e2d5;
    --sfse-text-primary: #3a3a3a;
    --sfse-text-secondary: #6b6b6b;
    --sfse-text-muted: #8b7355;
    --sfse-border: rgba(0,0,0,0.04);
    --sfse-shadow-sm: 0 2px 15px rgba(0,0,0,0.06);
    --sfse-shadow-md: 0 10px 30px rgba(0,0,0,0.1);
    --sfse-shadow-lg: 0 25px 60px rgba(0,0,0,0.15);
}

body.sfse-article {
    background: linear-gradient(180deg, var(--sfse-bg-primary) 0%, var(--sfse-bg-secondary) 100%);
    min-height: 100vh;
}

.sfse-article-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

.sfse-article-header {
    text-align: center;
    margin-bottom: 80px;
}

.sfse-article h1 {
    font-family: 'Playfair Display', serif;
    font-size: 52px;
    font-weight: 400;
    margin-bottom: 20px;
    color: var(--sfse-primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.sfse-article-meta {
    font-size: 16px;
    color: var(--sfse-text-muted);
    font-weight: 300;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.sfse-article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.sfse-article-content {
    background: white;
    border-radius: 20px;
    padding: 60px;
    box-shadow: var(--sfse-shadow-sm);
    border: 1px solid var(--sfse-border);
    margin-bottom: 40px;
}

.sfse-article-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    font-weight: 400;
    margin: 40px 0 24px;
    color: var(--sfse-primary);
}

.sfse-article-content h3 {
    font-family: 'Playfair Display', serif;
    font-size: 26px;
    font-weight: 400;
    margin: 30px 0 16px;
    color: var(--sfse-primary);
}

.sfse-article-content p {
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--sfse-text-primary);
    margin-bottom: 20px;
}

.sfse-article-content ul,
.sfse-article-content ol {
    margin: 20px 0 20px 20px;
    color: var(--sfse-text-primary);
}

.sfse-article-content li {
    margin-bottom: 12px;
    line-height: 1.7;
}

.sfse-toc {
    background: var(--sfse-bg-primary);
    border-radius: 16px;
    padding: 32px;
    margin: 40px 0;
    border: 1px solid var(--sfse-bg-tertiary);
}

.sfse-toc-title {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--sfse-primary);
}

.sfse-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sfse-toc-list li {
    margin-bottom: 12px;
}

.sfse-toc-list a {
    color: var(--sfse-text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    padding: 4px 0;
}

.sfse-toc-list a:hover {
    color: var(--sfse-gold);
    transform: translateX(5px);
}

.sfse-skill-meta-box,
.sfse-role-meta-box {
    background: linear-gradient(135deg, var(--sfse-bg-primary) 0%, var(--sfse-bg-secondary) 100%);
    border-radius: 16px;
    padding: 40px;
    margin: 40px 0;
}

.sfse-skill-meta-grid,
.sfse-role-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.sfse-meta-item {
    background: white;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--sfse-shadow-sm);
}

.sfse-meta-label {
    display: block;
    font-size: 13px;
    color: var(--sfse-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.sfse-meta-value {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    color: var(--sfse-primary);
    font-weight: 400;
}

.sfse-faq {
    margin: 40px 0;
}

.sfse-faq-item {
    background: white;
    border: 1px solid var(--sfse-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

.sfse-faq-item:hover {
    box-shadow: var(--sfse-shadow-sm);
    border-color: var(--sfse-gold);
}

.sfse-faq-item h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.sfse-related-articles {
    margin-top: 60px;
}

.sfse-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.sfse-related-item {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--sfse-shadow-sm);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: 1px solid var(--sfse-border);
}

.sfse-related-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--sfse-shadow-md);
    border-color: var(--sfse-gold);
}

.sfse-related-item h4 {
    font-family: 'Playfair Display', serif;
    font-size: 20px;
    margin-bottom: 12px;
}

.sfse-related-item a {
    color: var(--sfse-primary);
    text-decoration: none;
}

.sfse-related-item a:hover {
    color: var(--sfse-gold);
}

/* Article Grid Styles */
.sfse-article-grid {
    margin: 40px 0;
}

.sfse-filter-bar {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.sfse-category-filter,
.sfse-sort-filter {
    padding: 12px 20px;
    border-radius: 50px;
    border: 1px solid var(--sfse-bg-tertiary);
    background: white;
    font-size: 14px;
    color: var(--sfse-text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.sfse-category-filter:hover,
.sfse-sort-filter:hover {
    border-color: var(--sfse-gold);
}

.sfse-grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.sfse-article-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--sfse-shadow-sm);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: 1px solid var(--sfse-border);
}

.sfse-article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--sfse-shadow-md);
    border-color: var(--sfse-gold);
}

.sfse-card-image {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--sfse-bg-primary) 0%, var(--sfse-bg-secondary) 100%);
}

.sfse-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.sfse-article-card:hover .sfse-card-image img {
    transform: scale(1.05);
}

.sfse-card-content {
    padding: 32px;
}

.sfse-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--sfse-text-muted);
}

.sfse-category {
    background: var(--sfse-bg-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 500;
    color: var(--sfse-text-muted);
}

.sfse-card-title {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    margin-bottom: 12px;
}

.sfse-card-title a {
    color: var(--sfse-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.sfse-card-title a:hover {
    color: var(--sfse-gold);
}

.sfse-card-excerpt {
    color: var(--sfse-text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.sfse-card-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.sfse-stat {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
}

.sfse-stat-label {
    color: var(--sfse-text-muted);
}

.sfse-stat-value {
    font-weight: 600;
    color: var(--sfse-primary);
}

.sfse-card-link {
    display: inline-block;
    color: var(--sfse-gold);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.sfse-card-link:hover {
    transform: translateX(5px);
}

.sfse-load-more-container {
    text-align: center;
    margin-top: 40px;
}

.sfse-load-more {
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--sfse-primary) 0%, #1a1a1a 100%);
    color: var(--sfse-bg-secondary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.sfse-load-more:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.25);
}

/* Trending Skills Styles */
.sfse-trending-skills {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--sfse-shadow-sm);
    margin: 40px 0;
}

.sfse-trending-title {
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    margin-bottom: 24px;
    color: var(--sfse-primary);
}

.sfse-skills-chart {
    margin: 24px 0;
}

.sfse-skill-bar {
    margin-bottom: 20px;
}

.sfse-skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.sfse-skill-name {
    font-weight: 500;
    color: var(--sfse-text-primary);
}

.sfse-skill-score {
    color: var(--sfse-gold);
    font-weight: 600;
}

.sfse-skill-progress {
    height: 8px;
    background: var(--sfse-bg-tertiary);
    border-radius: 10px;
    overflow: hidden;
}

.sfse-skill-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--sfse-gold) 0%, var(--sfse-gold-hover) 100%);
    border-radius: 10px;
    transition: width 1s ease;
}

/* Salary Calculator Styles */
.sfse-salary-calculator {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--sfse-shadow-sm);
    margin: 40px 0;
}

.sfse-calc-field {
    margin-bottom: 24px;
}

.sfse-calc-field label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--sfse-text-primary);
}

.sfse-calc-select,
.sfse-calc-range {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--sfse-bg-tertiary);
    background: white;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.sfse-calc-select:focus,
.sfse-calc-range:focus {
    outline: none;
    border-color: var(--sfse-gold);
}

.sfse-calc-skills {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.sfse-calc-skills label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 400;
}

.sfse-calc-result {
    background: linear-gradient(135deg, var(--sfse-bg-primary) 0%, var(--sfse-bg-secondary) 100%);
    border-radius: 12px;
    padding: 32px;
    text-align: center;
    margin-top: 32px;
}

.sfse-salary-range {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin: 20px 0;
}

.sfse-salary-min,
.sfse-salary-max {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    font-weight: 400;
    color: var(--sfse-primary);
}

.sfse-salary-separator {
    color: var(--sfse-text-muted);
}

.sfse-salary-note {
    color: var(--sfse-text-muted);
    font-size: 14px;
}

/* Premium CTA Styles */
.sfse-premium-cta {
    background: linear-gradient(135deg, var(--sfse-primary) 0%, #1a1a1a 100%);
    border-radius: 20px;
    padding: 60px;
    text-align: center;
    margin: 60px 0;
    color: white;
}

.sfse-cta-content h3 {
    font-family: 'Playfair Display', serif;
    font-size: 42px;
    margin-bottom: 16px;
}

.sfse-cta-content p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.sfse-cta-button {
    display: inline-block;
    padding: 16px 40px;
    background: var(--sfse-gold);
    color: var(--sfse-primary);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 13px;
    transition: all 0.3s ease;
}

.sfse-cta-button:hover {
    background: var(--sfse-gold-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .sfse-article h1 {
        font-size: 36px;
    }
    
    .sfse-article-content {
        padding: 40px 20px;
    }
    
    .sfse-article-content h2 {
        font-size: 28px;
    }
    
    .sfse-grid-container {
        grid-template-columns: 1fr;
    }
    
    .sfse-skill-meta-grid,
    .sfse-role-meta-grid {
        grid-template-columns: 1fr;
    }
    
    .sfse-related-grid {
        grid-template-columns: 1fr;
    }
    
    .sfse-premium-cta {
        padding: 40px 20px;
    }
    
    .sfse-cta-content h3 {
        font-size: 32px;
    }
}