.blog-wrapper {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 20px;
}

/* Title Area */
.blog-header {
    margin-bottom: 35px;
    text-align: left;
}

.blog-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.3;
    color: #222;
    margin-bottom: 10px;
}

.blog-date {
    font-size: 15px;
    color: #666;
    margin-bottom: 8px;
    display: block;
}

/* Layout Split */
.blog-main {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
}

/* Table of Contents */
.blog-toc {
    position: sticky;
    top: 120px;
    padding: 20px;
    height: fit-content;
    border-radius: 14px;
    background: #fafafa;
    border: 1px solid #eee;
}

    .blog-toc h4 {
        font-size: 15px;
        font-weight: 700;
        margin-bottom: 10px;
    }

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

.toc-item {
    margin-bottom: 8px;
}

    .toc-item a {
        color: #2C4BFF;
        text-decoration: none;
        font-size: 14px;
    }

    .toc-item.level-H3 {
        margin-left: 15px;
    }

/* Blog Content Styling */
.blog-content {
    max-width: 760px;
    margin: auto;
    font-size: 18px;
    line-height: 1.75;
    line-height: 1.8;
    color: #333;
}

    .blog-content h2 {
        font-size: 28px;
        margin-top: 40px;
    }

    .blog-content h3 {
        font-size: 22px;
        margin-top: 30px;
    }

    .blog-content p {
        margin: 18px 0;
    }

    .blog-content ul {
        margin-left: 18px;
    }

    .blog-content img {
        max-width: 100%;
        border-radius: 8px;
        margin: 20px 0;
    }

/* Mobile */
@media (max-width: 900px) {
    .blog-main {
        grid-template-columns: 1fr;
    }

    .blog-toc {
        position: relative;
        top: 0;
        margin-bottom: 20px;
    }
}

/* Hero Header (Modern Look) */
.modern-blog .blog-hero {
    background: linear-gradient(135deg, #eef2ff, #f8fafc);
    padding: 40px 30px;
    border-radius: 20px;
    margin-bottom: 45px;
}

.modern-blog .blog-title {
    font-size: 42px;
    font-weight: 900;
    line-height: 1.25;
    letter-spacing: -0.5px;
}

.modern-blog .blog-date {
    font-size: 14px;
    color: #475569;
    font-weight: 600;
}

/* Content Typography */

.modern-blog .blog-content {
    font-size: 19px;
    line-height: 1.9;
    color: #1f2937;
    background: #ffffff;
    padding: 35px;
    border-radius: 22px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
}

    .modern-blog .blog-content p {
        margin: 20px 0;
    }

    .modern-blog .blog-content h2 {
        font-size: 30px;
        font-weight: 800;
        margin-top: 50px;
    }

    .modern-blog .blog-content h3 {
        font-size: 22px;
        font-weight: 700;
        margin-top: 35px;
    }

/* TOC Card → Premium Sticky Card */

.modern-blog .blog-toc {
    background: white;
    border-radius: 18px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 12px 30px rgba(0,0,0,0.05);
}

    .modern-blog .blog-toc h4 {
        font-size: 16px;
        font-weight: 800;
    }

.modern-blog .toc-item a {
    font-weight: 500;
}

    .modern-blog .toc-item a:hover {
        text-decoration: underline;
    }

.blog-cta {
    margin-top: 60px;
    padding: 30px;
    border-radius: 20px;
    background: linear-gradient(135deg, #4f46e5, #6366f1);
    color: white;
    text-align: center;
}

    .blog-cta h3 {
        font-size: 26px;
        font-weight: 800;
    }

    .blog-cta p {
        margin: 12px 0 20px;
        opacity: 0.95;
    }

    .blog-cta .cta-btn {
        background: #fff;
        color: #4f46e5;
        padding: 12px 26px;
        border-radius: 30px;
        font-weight: 700;
        text-decoration: none;
    }

@media (max-width: 768px) {
    .modern-blog .blog-title {
        font-size: 30px;
    }

    .modern-blog .blog-content {
        padding: 22px;
    }
}