/* ============================================
   BLOG DETAIL PAGE STYLES
   ============================================ */

/* Article Header */
.article-header {
    background: var(--dark);
    padding: 8rem 0 3rem;
    position: relative;
    overflow: hidden;
}

.article-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(236, 72, 153, 0.15) 0%, transparent 50%);
}

.breadcrumb-nav {
    position: relative;
    margin-bottom: 2rem;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb-item {
    font-size: 0.875rem;
}

.breadcrumb-item a {
    color: rgba(255,255,255,0.7);
    display: flex;
    align-items: center;
    gap: 0.375rem;
    transition: var(--transition);
}

.breadcrumb-item a:hover {
    color: var(--white);
}

.breadcrumb-separator {
    color: rgba(255,255,255,0.4);
    font-size: 0.75rem;
}

.breadcrumb-item.active {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
}

.article-meta-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.article-category {
    background: var(--gradient-1);
    color: var(--white);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-date,
.article-readtime {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.article-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 56px;
    height: 56px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    color: var(--white);
    font-weight: 600;
    font-size: 1.1rem;
}

.author-role {
    color: rgba(255,255,255,0.6);
    font-size: 0.875rem;
}

/* Article Main Content */
.article-main {
    padding: 3rem 0;
    background: var(--gray-100);
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 3rem;
}

.article-content-wrapper {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow);
    height: fit-content;
}

.article-hero-image {
    margin: -2.5rem -2.5rem 2rem -2.5rem;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    overflow: hidden;
}

.article-hero-image img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: cover;
}

/* Article Body Typography */
.article-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--gray-800);
}

.article-body h2,
.article-body h3,
.article-body h4 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.3;
}

.article-body h2 {
    font-size: 1.875rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--gray-200);
}

.article-body h3 {
    font-size: 1.5rem;
}

.article-body h4 {
    font-size: 1.25rem;
}

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

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

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

.article-body blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--gray-600);
    background: var(--gray-100);
    padding: 1.5rem;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.article-body code {
    background: var(--gray-100);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.9em;
    color: var(--secondary);
}

.article-body pre {
    background: var(--dark);
    color: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 1.5rem 0;
}

.article-body pre code {
    background: none;
    color: inherit;
    padding: 0;
}

.article-body img {
    border-radius: var(--radius);
    margin: 2rem 0;
    box-shadow: var(--shadow);
}

.article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-decoration-color: var(--primary-light);
    text-underline-offset: 3px;
    transition: var(--transition);
}

.article-body a:hover {
    color: var(--primary-dark);
    text-decoration-color: var(--primary-dark);
}

/* Article Tags */
.article-tags {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
}

.article-tags h6 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-600);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tag-link {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    color: var(--gray-800);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.tag-link:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* Share Buttons */
.article-share {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
}

.article-share h6 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-600);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.share-buttons {
    display: flex;
    gap: 0.75rem;
}

.share-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.share-btn.twitter { background: #1da1f2; }
.share-btn.linkedin { background: #0077b5; }
.share-btn.facebook { background: #4267B2; }
.share-btn.email { background: #ea4335; }
.share-btn.copy { background: var(--gray-600); }

.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Comments Section */
.comments-section {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 2px solid var(--gray-200);
}

.comments-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.comments-header h3 {
    font-size: 1.5rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.comments-count {
    background: var(--primary);
    color: var(--white);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.comment-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.comment-item:hover {
    background: var(--white);
    box-shadow: var(--shadow);
}

.comment-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.comment-author {
    font-weight: 600;
    color: var(--dark);
}

.comment-date {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.comment-text {
    color: var(--gray-800);
    line-height: 1.6;
    margin: 0;
}

.comments-empty {
    text-align: center;
    padding: 3rem;
    color: var(--gray-600);
}

.comments-empty i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Comment Form */
.comment-form-wrapper {
    background: var(--gray-100);
    padding: 2rem;
    border-radius: var(--radius-xl);
}

.comment-form-wrapper h4 {
    margin-bottom: 1.5rem;
    color: var(--dark);
}

.comment-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* Alert */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}

/* Sidebar */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.sidebar-author {
    text-align: center;
}

.sidebar-author-avatar {
    width: 80px;
    height: 80px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--white);
    font-size: 2rem;
}

.sidebar-author h4 {
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.sidebar-author p {
    color: var(--gray-600);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.sidebar-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-posts {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sidebar-post {
    display: flex;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}

.sidebar-post:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sidebar-post:hover {
    transform: translateX(5px);
}

.sidebar-post-image {
    width: 80px;
    height: 60px;
    border-radius: var(--radius);
    overflow: hidden;
    flex-shrink: 0;
}

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

.sidebar-post:hover .sidebar-post-image img {
    transform: scale(1.1);
}

.sidebar-post-content {
    flex: 1;
}

.sidebar-post-content h5 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.25rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sidebar-post-content span {
    font-size: 0.8rem;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.sidebar-categories {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-categories li {
    border-bottom: 1px solid var(--gray-100);
}

.sidebar-categories li:last-child {
    border-bottom: none;
}

.sidebar-categories a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 0;
    color: var(--gray-800);
    font-weight: 500;
    transition: var(--transition);
}

.sidebar-categories a:hover {
    color: var(--primary);
    padding-left: 0.5rem;
}

.sidebar-categories i {
    font-size: 0.75rem;
    color: var(--gray-400);
    transition: var(--transition);
}

.sidebar-categories a:hover i {
    color: var(--primary);
    transform: translateX(3px);
}

.sidebar-cta {
    background: var(--gradient-1);
    color: var(--white);
    text-align: center;
    position: sticky;
    top: 100px;
}

.cta-icon {
    width: 64px;
    height: 64px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.75rem;
}

.sidebar-cta h4 {
    color: var(--white);
    margin-bottom: 0.5rem;
}

.sidebar-cta p {
    color: rgba(255,255,255,0.9);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.sidebar-cta .btn {
    background: var(--white);
    color: var(--primary);
}

.sidebar-cta .btn:hover {
    background: var(--dark);
    color: var(--white);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.w-100 {
    width: 100%;
    justify-content: center;
}

/* Responsive */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    
    .article-sidebar {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .sidebar-cta {
        position: static;
    }
}

@media (max-width: 768px) {
    .article-header {
        padding: 7rem 0 2rem;
    }
    
    .article-content-wrapper {
        padding: 1.5rem;
        margin: 0 -1rem;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    }
    
    .article-hero-image {
        margin: -1.5rem -1.5rem 1.5rem -1.5rem;
    }
    
    .article-body {
        font-size: 1rem;
    }
    
    .article-body h2 {
        font-size: 1.5rem;
    }
    
    .comment-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .share-buttons {
        flex-wrap: wrap;
    }
    
    .sidebar-card {
        padding: 1.25rem;
    }
}

@media (max-width: 480px) {
    .article-meta-header {
        gap: 1rem;
    }
    
    .article-category,
    .article-date,
    .article-readtime {
        font-size: 0.8rem;
    }
    
    .comment-item {
        flex-direction: column;
        gap: 0.75rem;
    }
}