/* ===================================
   Blog Page Styles
   =================================== */

/* Reading Progress Bar */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-mid), var(--color-gradient-end));
    z-index: 10001;
    transition: width 0.1s ease-out;
}

/* Active Navigation Link */
.nav-link.active {
    color: var(--color-accent) !important;
    position: relative;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
    border-radius: 1px;
}

/* Blog Page Header */
.blog-page-header {
    padding: 140px 0 var(--spacing-3xl);
    background: var(--color-bg);
    text-align: center;
}

.blog-page-header .container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Back to Home Button */
.back-to-home {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    margin-bottom: var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.back-to-home:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateX(-4px);
}

.back-to-home svg {
    transition: transform var(--transition-fast);
}

.back-to-home:hover svg {
    transform: translateX(-4px);
}

.blog-page-header .section-label,
.blog-page-header .section-title,
.blog-page-header .section-description {
    text-align: center;
}

.blog-page-header .section-title {
    margin-bottom: var(--spacing-md);
}

.blog-page-header .section-description {
    max-width: 600px;
}

/* Blog List */
.blog-list {
    padding: var(--spacing-3xl) 0 var(--spacing-4xl);
    background: var(--color-bg);
}

.blog-grid-list {
    grid-template-columns: 1fr;
    max-width: 900px;
    margin: 0 auto;
}

.blog-grid-list .blog-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 0;
}

.blog-grid-list .blog-card-image {
    aspect-ratio: 4/3;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.blog-grid-list .blog-card-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-grid-list .blog-card-title {
    font-size: 1.5rem;
}

.blog-grid-list .blog-card-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Article Styles */
.blog-article {
    background: var(--color-bg);
    min-height: 100vh;
}

.article-header {
    padding: 140px 0 var(--spacing-3xl);
    background: linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg) 100%);
}

.article-back {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    margin-bottom: var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.article-back:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateX(-4px);
}

.article-back svg {
    transition: transform var(--transition-fast);
}

.article-back:hover svg {
    transform: translateX(-4px);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

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

.article-category {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    background: var(--color-accent-muted);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

.article-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.article-lead {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 700px;
}

/* Article Content */
.article-content {
    padding: var(--spacing-3xl) 0 var(--spacing-4xl);
}

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.article-content h2 {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--spacing-3xl);
    margin-bottom: var(--spacing-lg);
    line-height: 1.3;
}

.article-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.article-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.article-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.article-content strong {
    color: var(--color-text);
    font-weight: 600;
}

.article-content em {
    font-style: italic;
}

.article-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-fast);
}

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

.article-content ul,
.article-content ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.article-content li {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.article-content ul li {
    list-style-type: disc;
}

.article-content ol li {
    list-style-type: decimal;
}

.article-content li strong {
    color: var(--color-text);
}

.article-content blockquote {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: var(--color-bg-card);
    border-left: 4px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-text);
    line-height: 1.7;
}

/* Responsive Blog Styles */
@media (max-width: 768px) {
    .blog-page-header {
        padding: 120px 0 var(--spacing-2xl);
    }
    
    .blog-grid-list .blog-card {
        grid-template-columns: 1fr;
    }
    
    .blog-grid-list .blog-card-image {
        aspect-ratio: 16/9;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }
    
    .blog-grid-list .blog-card-title {
        font-size: 1.25rem;
    }
    
    .article-header {
        padding: 120px 0 var(--spacing-2xl);
    }
    
    .article-title {
        font-size: 1.75rem;
    }
    
    .article-lead {
        font-size: 1.1rem;
    }
    
    .article-content h2 {
        font-size: 1.5rem;
        margin-top: var(--spacing-2xl);
    }
    
    .article-content h3 {
        font-size: 1.25rem;
    }
    
    .article-content h4 {
        font-size: 1.125rem;
    }
    
    .article-content p,
    .article-content li {
        font-size: 1rem;
    }
    
    .article-content blockquote {
        padding: var(--spacing-lg);
        font-size: 1.1rem;
    }
    
    /* Back buttons mobile */
    .back-to-home,
    .article-back {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
    
    .back-to-home svg,
    .article-back svg {
        width: 16px;
        height: 16px;
    }
}