/* =========================================
   PREMIUM BLOG STYLES
   ========================================= */

/* 1. Blog Hero Section */
.blog-hero {
    position: relative;
    padding: 160px 0 100px;
    background: linear-gradient(160deg, #050E17 0%, #0B1F33 100%);
    color: white;
    text-align: center;
    overflow: hidden;
}

.blog-hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.blog-meta-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.blog-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: white;
}

.blog-author-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.blog-author-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-accent);
}

.blog-author-info {
    text-align: left;
}

.blog-author-name {
    display: block;
    font-weight: 600;
    color: white;
    font-size: 1.1rem;
}

.blog-publish-date {
    display: block;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

/* 2. Blog Layout (Content + Sidebar) */
.blog-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    /* Main Content + Sidebar */
    gap: 4rem;
    margin: 0 auto;
    max-width: 1200px;
    padding: 4rem 2rem;
}

/* 3. Main Article Content */
.blog-article {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--color-text-main);
}

.blog-article p {
    margin-bottom: 1.5rem;
}

.blog-article h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-bg-dark);
    margin: 3rem 0 1.5rem;
    border-left: 4px solid var(--color-accent);
    padding-left: 1.5rem;
}

.blog-article h3 {
    font-size: 1.5rem;
    color: var(--color-bg-dark);
    margin: 2rem 0 1rem;
    font-weight: 600;
}

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

.blog-article li {
    margin-bottom: 0.75rem;
}

.blog-article blockquote {
    background: var(--color-bg-secondary);
    border-left: 4px solid var(--color-accent);
    padding: 2rem;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-style: italic;
    color: var(--color-bg-dark);
    margin: 2.5rem 0;
    position: relative;
}

.blog-article img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: var(--shadow-lg);
}

.blog-caption {
    display: block;
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: -1.5rem;
    margin-bottom: 2rem;
    font-style: italic;
}

/* 4. Table of Contents (Sticky) */
.blog-toc {
    background: var(--color-bg-secondary);
    padding: 2rem;
    border-radius: 8px;
    position: sticky;
    top: 120px;
    border: 1px solid var(--color-border);
}

.blog-toc-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-bg-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.blog-toc li {
    margin-bottom: 0.75rem;
}

.blog-toc a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
    display: block;
    padding-left: 1rem;
    border-left: 2px solid transparent;
}

.blog-toc a:hover,
.blog-toc a.active {
    color: var(--color-accent);
    border-left-color: var(--color-accent);
}

/* 5. Mobile Responsiveness */
@media (max-width: 900px) {
    .blog-layout {
        grid-template-columns: 1fr;
        /* Stack sidebar below content */
        gap: 2rem;
    }

    .blog-hero {
        padding: 120px 0 60px;
    }

    .blog-title {
        font-size: 2.5rem;
    }

    .blog-toc {
        position: static;
        /* No longer sticky on mobile */
        margin-bottom: 3rem;
    }
}

/* =========================================
   BLOG INDEX PAGE STYLES
   ========================================= */

.blog-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

.blog-post-card {
    background: var(--color-bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--color-border);
}

.blog-post-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.blog-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.blog-card-image {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.blog-card-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--color-accent);
    color: var(--color-bg-dark);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.blog-card-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    line-height: 1.3;
    color: var(--color-bg-dark);
    margin-bottom: 1rem;
    transition: color 0.2s;
}

.blog-post-card:hover .blog-card-title {
    color: var(--color-accent);
}

.blog-card-excerpt {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.blog-card-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.blog-card-author-img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.blog-card-author span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-main);
}

/* Mobile Responsiveness for Blog Index */
@media (max-width: 768px) {
    .blog-posts-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .blog-card-image {
        height: 200px;
    }

    .blog-card-title {
        font-size: 1.2rem;
    }
}