/* Breadcrumb */
.breadcrumb {
    background-color: #f7fafc;
    padding: 1rem 0;
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.breadcrumb-list li:not(:last-child)::after {
    content: "/";
    margin-left: 0.5rem;
    color: #cbd5e0;
}

/* Article Styles */
.article,
.review-article {
    padding: 3rem 0;
}

.article-wrapper,
.review-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    align-items: start;
}

.article-content,
.review-content {
    background: white;
    border-radius: 12px;
    padding: 3rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.article-header,
.review-header {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e2e8f0;
}

.article-body,
.review-body {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4a5568;
}

.article-body h2,
.article-body h3,
.article-body h4,
.review-body h2,
.review-body h3,
.review-body h4 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #2d3748;
}

.article-body ul,
.article-body ol,
.review-body ul,
.review-body ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.article-body li,
.review-body li {
    margin-bottom: 0.5rem;
}

.article-meta,
.review-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #718096;
}

.article-author,
.review-author,
.article-date,
.review-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-tags,
.review-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* Sidebar */
.article-sidebar,
.review-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.related-posts,
.related-reviews {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.related-post,
.related-review {
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    transition: all 0.2s;
}

.related-post:hover,
.related-review:hover {
    border-color: #3182ce;
}

.related-post h4,
.related-review h4 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.related-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: #718096;
}

/* Newsletter Form */
.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-input {
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-input:focus {
    border-color: #3182ce;
}

/* Share Buttons */
.share-buttons {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

.share-buttons h4 {
    margin-bottom: 1rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    margin-right: 0.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
}

.share-btn.facebook {
    background-color: #1877f2;
    color: white;
}

.share-btn.twitter {
    background-color: #1da1f2;
    color: white;
}

.share-btn.linkedin {
    background-color: #0077b5;
    color: white;
}

.share-btn:hover {
    opacity: 0.9;
    color: white;
}

/* Navigation */
.article-nav {
    padding: 2rem 0;
}

.nav-buttons {
    display: flex;
    justify-content: center;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .article-wrapper,
    .review-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .article-sidebar,
    .review-sidebar {
        order: 0;
    }
}

@media (max-width: 768px) {
    .article-content,
    .review-content {
        padding: 1.5rem;
    }
    
    .sidebar {
        order: 2;
        position: static;
        margin-bottom: 1.5rem;
    }
    
    .main-content {
        order: 1;
        margin-bottom: 0;
    }
    
    .nav-brand .brand-link {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .article,
    .review-article {
        padding: 2rem 0;
    }
    
    .article-content,
    .review-content {
        padding: 1.2rem;
    }
    
    .sidebar-section {
        padding: 1.2rem;
    }
    
    .nav-brand .brand-link {
        font-size: 1.2rem;
    }
    
    .nav-brand .brand-link span {
        display: none;
    }
    
    .nav-brand .brand-link::after {
        content: "PTR";
        font-weight: 700;
    }
}

@media (max-width: 360px) {
    .article-content,
    .review-content {
        padding: 1rem;
    }
    
    .sidebar-section {
        padding: 1rem;
    }
}