/* ==========================================================================
   STATE-OF-THE-ART BLOG DETAIL DESIGN SYSTEM
   ========================================================================== */

:root {
    --detail-bg: #050212;
    --detail-surface: rgba(255, 255, 255, 0.03);
    --detail-border: rgba(168, 85, 247, 0.15);
    --detail-border-hover: rgba(168, 85, 247, 0.35);
    
    --detail-text-title: #ffffff;
    --detail-text-body: rgba(255, 255, 255, 0.88);
    --detail-text-muted: rgba(255, 255, 255, 0.65);
    
    --detail-accent: #a78bfa;
    --detail-secondary: #c084fc;
    --detail-accent-glow: rgba(168, 85, 247, 0.25);
    
    --detail-card-shadow: 0 16px 40px -10px rgba(0, 0, 0, 0.5);
    --detail-radius: 24px;
    --detail-transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

:root[data-theme="light"],
body.light-theme {
    --detail-bg: #ffffff;
    --detail-surface: #ffffff;
    --detail-border: rgba(168, 85, 247, 0.10);
    --detail-border-hover: rgba(139, 92, 246, 0.25);
    
    --detail-text-title: #0f172a;
    --detail-text-body: #334155;
    --detail-text-muted: #64748b;
    
    --detail-accent: #8b5cf6;
    --detail-secondary: #a78bfa;
    --detail-accent-glow: rgba(139, 92, 246, 0.15);
    
    --detail-card-shadow: 0 12px 30px rgba(15, 23, 42, 0.05);
}

.blog-detail-page {
    background-color: var(--detail-bg);
    min-height: 100vh;
    padding: 120px 0 100px;
    position: relative;
    overflow: hidden;
    color: var(--detail-text-body);
}

.blog-container {
    width: min(1180px, 92%);
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Header */
.article-header {
    text-align: center;
    max-width: 860px;
    margin: 0 auto 40px;
    position: relative;
    z-index: 2;
}

.article-header .badge {
    display: inline-block;
    padding: 6px 18px;
    border-radius: 999px;
    background: rgba(168, 85, 247, 0.15);
    border: 1px solid var(--detail-border);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 18px;
    color: var(--detail-accent);
}

.article-header h1 {
    font-size: clamp(2.2rem, 4.5vw, 3.6rem);
    line-height: 1.15;
    font-weight: 800;
    color: var(--detail-text-title);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.article-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px 20px;
    margin-bottom: 28px;
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--detail-surface);
    border-radius: 999px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--detail-text-body);
    border: 1px solid var(--detail-border);
}

.article-meta i {
    color: var(--detail-accent);
}

/* Share Buttons */
.share-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.share-label {
    font-weight: 700;
    color: var(--detail-text-body);
    font-size: 0.9rem;
    margin-right: 4px;
}

.share-btn {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    color: var(--detail-text-title);
    background: var(--detail-surface);
    border: 1px solid var(--detail-border);
    transition: var(--detail-transition);
}

.share-btn:hover {
    transform: translateY(-3px) scale(1.1);
    background: linear-gradient(135deg, var(--detail-accent), var(--detail-secondary));
    color: #ffffff !important;
    border-color: transparent;
    box-shadow: 0 8px 20px var(--detail-accent-glow);
}

/* Featured Image */
.article-featured-image {
    margin-bottom: 45px;
    border-radius: var(--detail-radius);
    overflow: hidden;
    box-shadow: var(--detail-card-shadow);
    border: 1.5px solid var(--detail-border);
    background: #0f0724;
}

.article-featured-image img {
    width: 100%;
    max-height: 540px;
    object-fit: cover;
    display: block;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.article-featured-image:hover img {
    transform: scale(1.04);
}

/* Content Wrapper & Sidebar */
.article-wrapper {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 36px;
    align-items: start;
}

.article-content-card {
    background: var(--detail-surface);
    border: 1.5px solid var(--detail-border);
    border-radius: var(--detail-radius);
    box-shadow: var(--detail-card-shadow);
    padding: 40px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.article-content {
    color: var(--detail-text-body);
    font-size: 1.08rem;
    line-height: 1.85;
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4 {
    color: var(--detail-text-title);
    margin-top: 36px;
    margin-bottom: 16px;
    line-height: 1.25;
    font-weight: 800;
}

.article-content h2 {
    font-size: 1.8rem;
}

.article-content h3 {
    font-size: 1.4rem;
}

.article-content p {
    margin-bottom: 20px;
    color: var(--detail-text-body);
}

.article-content a {
    color: var(--detail-accent);
    text-decoration: underline;
    text-underline-offset: 4px;
    font-weight: 600;
    transition: var(--detail-transition);
}

.article-content a:hover {
    color: var(--detail-secondary);
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 18px;
    margin: 24px 0;
    box-shadow: var(--detail-card-shadow);
}

.article-content blockquote {
    margin: 30px 0;
    padding: 24px 28px;
    border-left: 4px solid var(--detail-accent);
    background: rgba(168, 85, 247, 0.08);
    border-radius: 0 18px 18px 0;
    color: var(--detail-text-title);
    font-style: italic;
    font-size: 1.1rem;
}

.article-content pre {
    background: #09031a;
    color: #f1f5f9;
    padding: 20px;
    border-radius: 16px;
    overflow-x: auto;
    margin: 26px 0;
    border: 1px solid var(--detail-border);
}

.article-content code {
    background: rgba(168, 85, 247, 0.12);
    color: var(--detail-accent);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.9em;
}

.article-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}

/* Tags */
.article-tags {
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--detail-border);
}

.article-tags h4 {
    margin-bottom: 16px;
    font-size: 1.1rem;
    color: var(--detail-text-title);
    font-weight: 800;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    display: inline-block;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 999px;
    background: var(--detail-surface);
    color: var(--detail-accent);
    font-weight: 600;
    font-size: 0.88rem;
    border: 1px solid var(--detail-border);
    transition: var(--detail-transition);
}

.tag:hover {
    background: linear-gradient(135deg, var(--detail-accent), var(--detail-secondary));
    color: #ffffff !important;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--detail-accent-glow);
}

/* Sidebar */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 28px;
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: var(--detail-surface);
    border: 1.5px solid var(--detail-border);
    border-radius: var(--detail-radius);
    padding: 28px;
    box-shadow: var(--detail-card-shadow);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.sidebar-widget h3 {
    margin: 0 0 18px;
    font-size: 1.1rem;
    color: var(--detail-text-title);
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-widget h3 i {
    color: var(--detail-accent);
}

.related-posts ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.related-posts li + li {
    margin-top: 12px;
}

.related-posts a {
    display: block;
    text-decoration: none;
    padding: 14px 16px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--detail-border);
    transition: var(--detail-transition);
}

body.light-theme .related-posts a {
    background: #f8fafc;
}

.related-posts a:hover {
    background: rgba(168, 85, 247, 0.12);
    border-color: var(--detail-accent);
    transform: translateX(4px);
}

.related-title {
    display: block;
    color: var(--detail-text-title);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 6px;
}

.related-posts .date {
    font-size: 0.8rem;
    color: var(--detail-text-muted);
}

/* Back Button */
.back-to-blog {
    margin-top: 40px;
    text-align: center;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    padding: 14px 28px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--detail-accent), var(--detail-secondary));
    color: #ffffff !important;
    font-weight: 700;
    box-shadow: 0 8px 20px var(--detail-accent-glow);
    transition: var(--detail-transition);
}

.back-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 28px rgba(168, 85, 247, 0.4);
}

.back-btn i {
    transition: transform 0.3s ease;
}

.back-btn:hover i {
    transform: translateX(-4px);
}

/* Responsive */
@media screen and (max-width: 1024px) {
    .article-wrapper {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    .blog-detail-page {
        padding-top: 80px;
    }

    .article-content-card {
        padding: 24px;
    }
}