/* Blog/Writing Section Styles */

.blog-main {
    padding-top: 80px;
}

/* Blog Header */
.blog-header {
    padding: clamp(3rem, 8vw, 5rem) 0 clamp(2rem, 5vw, 3rem);
    text-align: center;
    background: var(--background-color);
}

.blog-header h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    color: var(--primary-color);
    text-transform: uppercase;
}

.blog-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Category Filter */
.blog-filter {
    padding: 1.5rem 0;
    background: var(--overlay-light);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 999;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .blog-filter {
    background: var(--overlay-light);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.filter-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 0.6rem 1.25rem;
    background: var(--card-background);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--accent-color);
    color: var(--primary-color);
}

.filter-btn.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

/* Featured Article */
.featured-article {
    padding: clamp(3rem, 6vw, 5rem) 0;
    background: var(--background-color);
}

.article-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: var(--card-background);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.article-featured:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.article-featured .article-image {
    height: 100%;
    min-height: 400px;
    position: relative;
}

.article-featured .article-content {
    padding: clamp(2rem, 4vw, 3rem);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.article-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--accent-gradient);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 16px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    width: fit-content;
}

.article-category {
    color: var(--accent-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-right: 1rem;
}

.article-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    opacity: 0.8;
}

[data-theme="dark"] .article-date {
    opacity: 0.9;
}

.article-featured h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin: 1rem 0;
    line-height: 1.3;
}

.article-featured h2 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-featured h2 a:hover {
    color: var(--accent-color);
}

.article-featured p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

/* Articles Grid */
.articles-grid {
    padding: clamp(3rem, 6vw, 5rem) 0;
    background: var(--background-secondary);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.article-card {
    background: var(--card-background);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

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

.article-card .article-image {
    height: 200px;
    width: 100%;
}

.article-card .article-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0.75rem 0 1rem;
    line-height: 1.4;
}

.article-card h3 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-card h3 a:hover {
    color: var(--accent-color);
}

.article-card p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex: 1;
}

.read-more {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.read-more:hover {
    gap: 0.75rem;
}

/* Article Page */
.article-page {
    padding-top: 80px;
}

.article-hero {
    padding: clamp(3rem, 8vw, 5rem) 0;
    background: var(--background-secondary);
    border-bottom: 1px solid var(--border-color);
}

.article-hero-image {
    height: 400px;
    border-radius: 24px;
    margin-bottom: 3rem;
    overflow: hidden;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.article-hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.article-author {
    color: var(--text-secondary);
    font-size: 1rem;
}

.article-body {
    padding: clamp(3rem, 6vw, 5rem) 0;
    max-width: 700px;
    margin: 0 auto;
}

.article-body p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 1.75rem;
}

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

/* Share Buttons */
.article-share {
    padding: 2rem 0 3rem;
    border-top: 1px solid var(--border-color);
    margin-top: 3rem;
}

.share-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.share-label {
    font-weight: 600;
    color: var(--text-color);
    margin-right: 0.5rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.share-btn:hover {
    border-color: var(--accent-color);
    background: var(--accent-color);
    color: white;
}

/* Related Articles */
.related-articles {
    padding: clamp(3rem, 6vw, 5rem) 0;
    background: var(--background-secondary);
}

.related-articles h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--primary-color);
    text-align: center;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
    .blog-main {
        padding-top: 60px;
    }

    .blog-header {
        padding: 3.5rem 0 2.5rem;
    }

    .blog-header h1 {
        font-size: 2.25rem;
        line-height: 1.2;
        letter-spacing: -0.02em;
    }

    .blog-subtitle {
        font-size: 1.1rem;
        line-height: 1.5;
    }

    .article-featured {
        grid-template-columns: 1fr;
        border-radius: 20px;
    }

    .article-featured .article-image {
        min-height: 280px;
        border-radius: 20px 20px 0 0;
    }

    .article-featured .article-content {
        padding: 2.5rem 2rem;
    }

    .article-featured h2 {
        font-size: 1.75rem;
        line-height: 1.25;
    }

    .grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .article-card {
        border-radius: 20px;
    }

    .article-card .article-image {
        border-radius: 20px 20px 0 0;
    }

    .blog-filter {
        top: 0;
        padding: 1.25rem 0;
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
    }

    .filter-buttons {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 0.75rem;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        gap: 0.75rem;
    }

    .filter-buttons::-webkit-scrollbar {
        display: none;
    }

    .filter-btn {
        white-space: nowrap;
        flex-shrink: 0;
        padding: 0.625rem 1.25rem;
        font-size: 0.95rem;
        border-radius: 12px;
        transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .article-hero-image {
        height: 280px;
        border-radius: 0;
    }

    .article-hero h1 {
        font-size: 2rem;
        line-height: 1.25;
        letter-spacing: -0.02em;
    }

    .article-body {
        padding: 3rem 0;
    }

    .article-body p {
        font-size: 17px;
        line-height: 1.7;
    }

    .related-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }

    .share-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .share-btn {
        width: 100%;
        justify-content: center;
        min-height: 48px;
        border-radius: 12px;
    }
}

@media (max-width: 480px) {
    .blog-header {
        padding: 2.5rem 0 2rem;
    }

    .blog-header h1 {
        font-size: 2rem;
        line-height: 1.15;
        letter-spacing: -0.025em;
    }

    .blog-subtitle {
        font-size: 1.05rem;
        line-height: 1.5;
    }

    .article-featured .article-image {
        min-height: 220px;
        border-radius: 20px 20px 0 0;
    }

    .article-featured .article-content {
        padding: 2rem 1.5rem;
    }

    .article-card {
        border-radius: 20px;
    }

    .article-card .article-image {
        height: 200px;
        border-radius: 20px 20px 0 0;
    }

    .article-card .article-content {
        padding: 1.5rem;
    }

    .article-hero h1 {
        font-size: 1.75rem;
        line-height: 1.2;
    }

    .article-hero {
        padding: 2.5rem 0;
    }

    .article-body {
        padding: 2.5rem 0;
    }

    .article-body p {
        font-size: 16px;
        line-height: 1.65;
        margin-bottom: 1.5rem;
    }

    .filter-buttons {
        gap: 0.625rem;
        padding-bottom: 0.5rem;
    }

    .filter-btn {
        font-size: 0.9rem;
        padding: 0.625rem 1.125rem;
        border-radius: 12px;
        font-weight: 500;
        min-height: 40px;
    }

    .share-buttons {
        flex-direction: column;
        gap: 0.875rem;
    }

    .share-btn {
        width: 100%;
        justify-content: center;
        min-height: 48px;
        border-radius: 12px;
        font-size: 1rem;
    }

    .related-grid {
        gap: 1.5rem;
    }

    .article-badge {
        font-size: 0.7rem;
        padding: 0.375rem 0.875rem;
        border-radius: 12px;
    }
}

/* Dark Mode Adjustments */
[data-theme="dark"] .article-card,
[data-theme="dark"] .article-featured {
    background: var(--card-background);
    border-color: var(--border-color);
}

[data-theme="dark"] .article-card:hover,
[data-theme="dark"] .article-featured:hover {
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .blog-filter {
    background: var(--background-color);
}

/* Hide/Show Articles Based on Filter */
.article-card.hidden,
.article-featured.hidden {
    display: none;
}