/* ===== BLOG STYLES - GAMIFICATION THEME ===== */

/* Blog Filters */
.blog-filters {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
}

.blog-filters h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--background-secondary);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(123, 104, 238, 0.2), transparent);
    transition: left var(--transition-normal);
}

.filter-btn:hover::before {
    left: 100%;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(123, 104, 238, 0.3);
}

.filter-btn.active:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(123, 104, 238, 0.4);
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.blog-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
    animation: fadeIn 0.6s ease-out;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.blog-card:hover::before {
    opacity: 1;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(123, 104, 238, 0.2);
    border-color: var(--primary-color);
}

.blog-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

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

.blog-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(123, 104, 238, 0.1), rgba(50, 205, 50, 0.1));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.blog-card:hover .blog-image::after {
    opacity: 1;
}

.blog-content {
    padding: 1.5rem;
}

.blog-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
}

.blog-category {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-weight: bold;
    font-size: 0.75rem;
}

.blog-date {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.blog-date::before {
    content: '📅';
}

.blog-read-time {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.blog-title {
    margin-bottom: 1rem;
}

.blog-title a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: bold;
    line-height: 1.4;
    transition: var(--transition-normal);
}

.blog-title a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--glow-color);
}

.blog-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    background: rgba(123, 104, 238, 0.1);
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(123, 104, 238, 0.2);
    transition: var(--transition-normal);
}

.tag:hover {
    background: rgba(123, 104, 238, 0.2);
    border-color: var(--primary-color);
}

.blog-read-more {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-normal);
    position: relative;
}

.blog-read-more::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width var(--transition-normal);
}

.blog-read-more:hover::after {
    width: 100%;
}

.blog-read-more:hover {
    color: var(--success-color);
    transform: translateX(5px);
}

/* No Results */
.no-results {
    text-align: center;
    margin: 3rem 0;
}

.no-results .card {
    max-width: 500px;
    margin: 0 auto;
}

/* Filter Animation */
.blog-card.fade-out {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.3s ease-out;
}

.blog-card.fade-in {
    opacity: 1;
    transform: scale(1);
    transition: all 0.3s ease-out;
}

/* Achievement Badges in Blog */
.blog-achievement {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--success-color), var(--secondary-color));
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    margin: 0.5rem 0;
    animation: achievementPulse 2s infinite;
}

/* Newsletter Section */
.newsletter-section {
    background: linear-gradient(135deg, var(--background-secondary), var(--background-dark));
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    margin: 3rem 0;
}

.newsletter-form {
    max-width: 400px;
    margin: 2rem auto 0;
}

.newsletter-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: var(--transition-normal);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 10px var(--glow-color);
}

.newsletter-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--secondary-color), var(--success-color));
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition-normal);
}

.newsletter-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(50, 205, 50, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .filter-buttons {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .blog-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .blog-content {
        padding: 1rem;
    }
    
    .blog-filters {
        padding: 1.5rem 1rem;
    }
    
    .newsletter-form {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 100%;
        max-width: 250px;
    }
    
    .blog-title a {
        font-size: 1.1rem;
    }
    
    .blog-image {
        height: 150px;
    }
}

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

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

/* Gamification Elements */
.xp-reward {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(50, 205, 50, 0.1);
    color: var(--success-color);
    padding: 4px 8px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: bold;
    border: 1px solid rgba(50, 205, 50, 0.3);
}

.level-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 4px 8px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: bold;
}

/* Article Stats */
.article-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Hover Effects */
.blog-card:hover .blog-title a {
    color: var(--primary-color);
}

.blog-card:hover .blog-read-more {
    color: var(--success-color);
}

/* Focus States */
.filter-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.blog-title a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Print Styles */
@media print {
    .blog-filters,
    .newsletter-section {
        display: none;
    }
    
    .blog-card {
        break-inside: avoid;
        border: 1px solid #ccc;
        margin-bottom: 1rem;
    }
}