/* Research Page Specific Styles */

/* Hero Section - Using unified consulting-hero styles from styles.css */
/* Old research-hero styles removed to use consistent styling across all pages */

/* Featured Articles Section */
.featured-articles {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.article-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.article-image {
    height: 200px;
    background: var(--gradient-primary);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.article-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="2" fill="rgba(255,255,255,0.2)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
}

.article-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.article-date {
    position: absolute;
    top: 1rem;
    right: 1rem;
    color: var(--white);
    font-size: 0.8rem;
    opacity: 0.8;
}

.article-content {
    padding: 2rem;
}

.article-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--dark-gray);
    line-height: 1.3;
}

.article-excerpt {
    color: var(--medium-gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.reading-time {
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.article-topics {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.topic {
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.read-more-btn {
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    width: 100%;
}

.read-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 102, 204, 0.3);
}

/* Full Article Content */
.full-article-content {
    padding: var(--section-padding);
    background: var(--white);
}

.article-header {
    max-width: 800px;
    margin: 0 auto 3rem auto;
    text-align: center;
}

.back-btn {
    background: var(--light-gray);
    color: var(--dark-gray);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    margin-bottom: 2rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.back-btn:hover {
    background: var(--medium-gray);
    color: var(--white);
}

.article-header .article-category {
    position: static;
    background: var(--gradient-primary);
    display: inline-block;
    margin-bottom: 1rem;
}

.article-header h1 {
    font-size: 2.5rem;
    color: var(--dark-gray);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.article-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.article-body h2 {
    font-size: 1.8rem;
    color: var(--dark-gray);
    margin: 2.5rem 0 1.5rem 0;
    border-left: 4px solid var(--primary-blue);
    padding-left: 1rem;
}

.article-body h3 {
    font-size: 1.4rem;
    color: var(--dark-gray);
    margin: 2rem 0 1rem 0;
}

.article-body h4 {
    font-size: 1.2rem;
    color: var(--dark-gray);
    margin: 1.5rem 0 0.75rem 0;
}

.article-body p {
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
}

.article-body ul, .article-body ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.article-body li {
    margin-bottom: 0.5rem;
    color: var(--dark-gray);
}

.article-body strong {
    color: var(--primary-blue);
    font-weight: 600;
}

/* Stats Grid in Articles */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-box {
    background: var(--light-blue);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    border-left: 4px solid var(--primary-blue);
}

.stat-box h4 {
    font-size: 2rem;
    color: var(--primary-blue);
    font-family: var(--font-primary);
    margin-bottom: 0.5rem;
}

.stat-box p {
    color: var(--dark-gray);
    font-size: 0.9rem;
    margin: 0;
}

/* Comparison Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: var(--white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

.comparison-table th {
    background: var(--gradient-primary);
    color: var(--white);
    font-weight: 600;
}

.comparison-table tr:nth-child(even) {
    background: var(--light-gray);
}

.comparison-table tr:hover {
    background: var(--light-blue);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .article-header h1 {
        font-size: 2rem;
    }
    
    .article-info {
        gap: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem 0.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .article-content {
        padding: 1.5rem;
    }
    
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .article-body {
        padding: 0 1rem;
    }
    
    .article-body h2 {
        font-size: 1.5rem;
    }
    
    .article-body h3 {
        font-size: 1.3rem;
    }
}

/* Animation for article transitions */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--light-gray);
    border-radius: 50%;
    border-top-color: var(--primary-blue);
    animation: spin 1s ease-in-out infinite;
}

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

/* Print styles for articles */
@media print {
    .research-hero,
    .back-btn,
    #navigation-placeholder,
    #footer-placeholder {
        display: none;
    }
    
    .full-article-content {
        padding: 0;
    }
    
    .article-body {
        max-width: none;
    }
    
    .article-body h2,
    .article-body h3,
    .article-body h4 {
        break-after: avoid;
    }
    
    .stats-grid {
        break-inside: avoid;
    }
}