/* ==========================================================================
   BLOG STYLES - Blog Hub and Article Pages
   ========================================================================== */

/* ==========================================================================
   BLOG HERO
   ========================================================================== */

.blog-hero {
    background: var(--gradient-blue);
    color: white;
    padding: 6rem 0 4rem;
    text-align: center;
}

.blog-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1rem;
}

.blog-hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
}

/* ==========================================================================
   BLOG GRID - HUB PAGE
   ========================================================================== */

.blog-grid {
    padding: 6rem 0;
}

.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* ==========================================================================
   BLOG CARD
   ========================================================================== */

.blog-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
}

.blog-card.disabled {
    cursor: not-allowed;
    position: relative;
}

.blog-card.disabled::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0);
    transition: var(--transition);
    pointer-events: none;
    border-radius: var(--border-radius);
}

.blog-card.disabled:hover::after {
    background: rgba(0, 0, 0, 0.15);
}

.blog-card-header {
    height: 5px;
    background: linear-gradient(to right, var(--primary-blue), var(--primary-green));
}

.blog-card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   BLOG META
   ========================================================================== */

.blog-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #6c757d;
}

.blog-tag {
    background: rgba(0, 128, 255, 0.1);
    color: var(--primary-blue);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.blog-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.blog-card p {
    color: #495057;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

/* ==========================================================================
   ARTICLE STYLES
   ========================================================================== */

article {
    max-width: 800px;
    margin: 4rem auto;
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.article-header {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 3px solid var(--primary-blue);
}

.article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: #6c757d;
    flex-wrap: wrap;
}

article h1 {
    font-size: 2.5rem;
    color: var(--dark);
    line-height: 1.3;
    margin-bottom: 1rem;
}

.article-intro {
    font-size: 1.15rem;
    color: #495057;
    line-height: 1.8;
    margin-bottom: 2rem;
}

article h2 {
    font-size: 1.8rem;
    color: var(--dark);
    margin: 2.5rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(0, 128, 255, 0.2);
}

article h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin: 2rem 0 1rem;
}

article p {
    margin-bottom: 1.5rem;
    color: #495057;
}

article ul, article ol {
    margin: 1.5rem 0 1.5rem 2rem;
    color: #495057;
}

article li {
    margin-bottom: 0.75rem;
    line-height: 1.8;
}

article strong {
    color: var(--dark);
    font-weight: 700;
}

/* ==========================================================================
   HIGHLIGHT BOX
   ========================================================================== */

.highlight-box {
    background: rgba(0, 128, 255, 0.05);
    border-left: 4px solid var(--primary-blue);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
}

.highlight-box h3 {
    margin-top: 0;
    color: var(--primary-blue);
}

/* ==========================================================================
   ROI COMPARISON
   ========================================================================== */

.roi-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.roi-box {
    background: white;
    border: 2px solid #e9ecef;
    padding: 1.5rem;
    border-radius: 12px;
}

.roi-box h4 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

/* ==========================================================================
   CTA BOX
   ========================================================================== */

.cta-box {
    background: var(--gradient-blue);
    color: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin: 3rem 0;
}

.cta-box h2 {
    color: white;
    border: none;
    margin: 0 0 1rem 0;
}

.cta-box p {
    color: white;
    opacity: 0.9;
    margin-bottom: 2rem;
}

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

/* ==========================================================================
   RELATED ARTICLES
   ========================================================================== */

.related-articles {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    margin-top: 3rem;
}

.related-articles h3 {
    margin-top: 0;
}

.related-articles ul {
    list-style: none;
    margin-left: 0;
}

.related-articles li::before {
    content: "→ ";
    color: var(--primary-blue);
    font-weight: bold;
    margin-right: 0.5rem;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 768px) {
    .blog-card.disabled::after {
        background: rgba(0, 0, 0, 0.05);
    }

    .blog-posts {
        grid-template-columns: 1fr;
    }

    article {
        padding: 2rem 1.5rem;
        margin: 2rem auto;
    }

    article h1 {
        font-size: 2rem;
    }

    article h2 {
        font-size: 1.5rem;
    }

    .roi-comparison {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
    }
}