/* ===================================
   Article Page Styles
   =================================== */
.article-page {
    padding-top: 80px;
    background: var(--bg-light);
}

.article-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 40px;
}

/* Article Header */
.article-header {
    text-align: center;
    margin-bottom: 40px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 20px;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--primary-color);
}

.article-category {
    display: inline-block;
    padding: 5px 15px;
    background: var(--primary-color);
    color: var(--text-light);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 20px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.article-category.mobile {
    background: #667eea;
}

.article-category.ctv {
    background: #ee0979;
}

.article-category.guides {
    background: #11998e;
}

.article-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.article-meta span {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.article-meta i {
    margin-right: 8px;
    color: var(--primary-color);
}

/* Featured Image */
.article-featured-image {
    position: relative;
    height: 400px;
    margin-bottom: 40px;
    border-radius: 10px;
    overflow: hidden;
}

.article-image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    color: var(--primary-color);
    font-size: 5rem;
}

.article-featured-image.mobile .article-image-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-light);
}

.article-featured-image.ctv .article-image-placeholder {
    background: linear-gradient(135deg, #ee0979 0%, #ff6a00 100%);
    color: var(--text-light);
}

.article-featured-image.guides .article-image-placeholder {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: var(--text-light);
}

/* Article Body */
.article-body {
    line-height: 1.8;
}

.article-intro {
    font-size: 1.2rem;
    color: var(--text-dark);
    font-weight: 500;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #eee;
}

.article-body h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
    margin: 40px 0 20px;
}

.article-body h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 30px 0 15px;
}

.article-body h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 25px 0 10px;
}

.article-body p {
    font-size: 1rem;
    color: var(--text-gray);
    margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
    margin: 20px 0 20px 25px;
}

.article-body li {
    font-size: 1rem;
    color: var(--text-gray);
    margin-bottom: 10px;
}

.article-body strong {
    color: var(--text-dark);
}

/* Callout Boxes */
.article-callout {
    background: #e8f4fd;
    border-left: 4px solid #1976d2;
    padding: 25px;
    border-radius: 0 8px 8px 0;
    margin: 30px 0;
}

.article-callout h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1565c0;
    margin: 0 0 10px !important;
}

.article-callout h4 i {
    margin-right: 10px;
}

.article-callout p {
    color: #1565c0;
    margin: 0;
}

.article-callout.success {
    background: #e8f5e9;
    border-left-color: #4caf50;
}

.article-callout.success h4,
.article-callout.success p {
    color: #2e7d32;
}

/* Tables */
.article-table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
}

.article-table th,
.article-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.article-table th {
    background: var(--bg-gray);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark);
}

.article-table td {
    font-size: 0.95rem;
    color: var(--text-gray);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.stat-box {
    background: var(--bg-gray);
    padding: 25px;
    text-align: center;
    border-radius: 8px;
}

.stat-box .stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-box .stat-label {
    font-size: 0.85rem;
    color: var(--text-gray);
}

/* Formula Box */
.formula-box {
    background: var(--bg-dark);
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    margin: 25px 0;
}

.formula {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-light);
    font-family: 'Fira Code', monospace;
}

/* Checklist */
.checklist {
    background: var(--bg-gray);
    padding: 25px;
    border-radius: 8px;
    margin: 25px 0;
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid #ddd;
}

.checklist-item:last-child {
    border-bottom: none;
}

.checklist-item i {
    color: #4caf50;
    font-size: 1.2rem;
}

.checklist-item span {
    font-size: 1rem;
    color: var(--text-dark);
}

/* Article CTA */
.article-cta {
    background: var(--bg-dark);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    margin: 50px 0;
}

.article-cta h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
    margin: 0 0 10px !important;
}

.article-cta p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 25px;
}

/* Article Footer */
.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    padding: 30px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    margin-top: 50px;
}

.article-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    padding: 5px 12px;
    background: var(--bg-gray);
    color: var(--text-dark);
    font-size: 0.8rem;
    border-radius: 20px;
}

.article-share {
    display: flex;
    align-items: center;
    gap: 15px;
}

.article-share span {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.share-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-gray);
    color: var(--text-dark);
    border-radius: 50%;
    transition: var(--transition);
}

.share-link:hover {
    background: var(--primary-color);
    color: var(--text-light);
}

/* Related Articles */
.related-articles {
    margin-top: 50px;
}

.related-articles h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 25px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.related-card {
    background: var(--bg-gray);
    padding: 25px;
    border-radius: 8px;
    transition: var(--transition);
}

.related-card:hover {
    background: var(--bg-dark);
    color: var(--text-light);
}

.related-card:hover h4 {
    color: var(--text-light);
}

.related-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.related-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.4;
    margin: 0;
    transition: var(--transition);
}

/* Responsive */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .article-content {
        padding: 40px 20px;
    }

    .article-header h1 {
        font-size: 1.8rem;
    }

    .article-meta {
        flex-direction: column;
        gap: 10px;
    }

    .article-featured-image {
        height: 250px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

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

    .article-footer {
        flex-direction: column;
        text-align: center;
    }

    .article-table {
        font-size: 0.85rem;
    }

    .article-table th,
    .article-table td {
        padding: 8px 10px;
    }
}