@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* CSS Variables specific to the Editorial layout */
:root {
    --blog-text-main: #333333;
    --blog-text-muted: #6b7280;
    --blog-text-light: #9ca3af;
    --blog-heading: #111827;
    --blog-accent: #111827; /* Sophisticated black/dark gray accent */
    --blog-border: #e5e7eb;
    --blog-bg-subtle: #f9fafb;
    --blog-code-bg: #1f2937;
    --blog-code-text: #f3f4f6;
    
    --toc-active-bg: rgba(17, 24, 39, 0.05);
}

/* Base Editorial Page */
.editorial-page {
    font-family: 'Inter', sans-serif;
    color: var(--blog-text-main);
    background-color: transparent; /* Inherits global background */
}

/* 3-Column Grid Layout */
.editorial-grid {
    display: grid;
    grid-template-columns: 1fr minmax(auto, 680px) 1fr;
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 120px 2rem 80px;
    align-items: start; /* Required for position: sticky to work properly */
}

/* =========================================
   LEFT SIDEBAR (TOC & Share)
   ========================================= */
.editorial-sidebar {
    position: sticky;
    top: 120px; /* Below the navbar */
    max-height: calc(100vh - 140px);
    overflow-y: auto;
    padding-right: 1rem;
    
    /* Scrollbar styling for sidebar */
    scrollbar-width: thin;
    scrollbar-color: var(--blog-border) transparent;
}
.editorial-sidebar::-webkit-scrollbar { width: 4px; }
.editorial-sidebar::-webkit-scrollbar-thumb { background: var(--blog-border); border-radius: 4px; }

/* Table of Contents */
.toc-container h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--blog-text-muted);
    margin-bottom: 1rem;
    font-weight: 600;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem 0;
}

.toc-list li {
    margin-bottom: 0.5rem;
}

.toc-link {
    display: block;
    font-size: 0.9rem;
    color: var(--blog-text-muted);
    text-decoration: none;
    line-height: 1.4;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    transition: all 0.2s;
    border-left: 2px solid transparent;
}

.toc-link:hover {
    color: var(--blog-heading);
    background: var(--blog-bg-subtle);
}

.toc-link.active {
    color: var(--blog-heading);
    font-weight: 500;
    background: rgba(76, 175, 80, 0.05); /* Faint green */
    border-left-color: #4CAF50; /* Green accent */
}

/* Share Section */
.share-section {
    border-top: 1px solid var(--blog-border);
    padding-top: 2rem;
}

.share-section h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--blog-text-muted);
    margin-bottom: 1rem;
    font-weight: 600;
}

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

.share-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    cursor: pointer;
    text-decoration: none;
    opacity: 0.8;
}

.share-btn-twitter { color: #1DA1F2; }
.share-btn-linkedin { color: #0A66C2; }
.share-btn-whatsapp { color: #25D366; }

.share-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
    display: block;
    flex-shrink: 0;
}

.share-btn:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.mobile-only {
    display: none;
}

/* =========================================
   CENTER CONTENT (Main Article)
   ========================================= */
.editorial-content {
    min-width: 0; /* Prevent flex/grid blowouts */
}

/* Hero Header */
.article-header {
    margin-bottom: 3rem;
}

.article-category {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent); /* Inherit global accent color for branding */
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    display: block;
}

.article-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--blog-heading);
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.95rem;
    color: var(--blog-text-muted);
}

.meta-dot {
    color: var(--blog-border);
}

.article-featured-image {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 4rem;
    background: var(--blog-bg-subtle);
}

.article-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Body Content Styling */
.article-body {
    font-size: 1.125rem;
    line-height: 1.8;
}

.article-body p {
    margin-bottom: 1.75rem;
}

.article-body > p:first-of-type {
    font-size: 1.35rem;
    line-height: 1.6;
    color: var(--blog-text-main);
    font-weight: 400;
    letter-spacing: -0.01em;
}

.article-body h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--blog-heading);
    margin: 3.5rem 0 1.5rem;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.article-body h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--blog-heading);
    margin: 2.5rem 0 1rem;
    letter-spacing: -0.01em;
}

.article-body a {
    color: var(--blog-heading);
    text-decoration: none;
    border-bottom: 1px solid var(--blog-border);
    transition: all 0.2s;
}

.article-body a:hover {
    border-bottom-color: var(--blog-heading);
}

.article-body ul, .article-body ol {
    margin-bottom: 1.75rem;
    padding-left: 1.5rem;
}

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

.article-body blockquote {
    margin: 2.5rem 0;
    padding-left: 1.5rem;
    border-left: 3px solid var(--blog-border);
    font-size: 1.35rem;
    font-style: italic;
    color: var(--blog-text-muted);
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 2.5rem 0;
}

/* Premium Code Blocks */
.article-body pre {
    background: var(--blog-code-bg);
    border-radius: 8px;
    margin: 2.5rem 0;
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    position: relative;
    /* Subtle inner shadow for depth */
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
    max-width: 100%;
}

.article-body pre code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--blog-code-text);
}

/* Inline Code */
.article-body code:not(pre code) {
    background: var(--blog-bg-subtle);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85em;
    color: var(--blog-heading);
    border: 1px solid var(--blog-border);
}

.code-copy-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--blog-code-text);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s;
}

.article-body pre:hover .code-copy-btn {
    opacity: 1;
}

.code-copy-btn:hover {
    background: rgba(255,255,255,0.2);
}

.code-copy-btn.copied {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* Mac Window Controls for Pre blocks */
.code-window-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    gap: 8px;
}
.code-window-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.code-window-dot:nth-child(1) { background-color: #FF5F56; }
.code-window-dot:nth-child(2) { background-color: #FFBD2E; }
.code-window-dot:nth-child(3) { background-color: #27C93F; }

/* =========================================
   AUTHOR & RELATED POSTS (Bottom)
   ========================================= */
.article-footer {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--blog-border);
}

.author-block {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 4rem;
}

.author-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--blog-bg-subtle);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--blog-heading);
    margin-bottom: 0.25rem;
}

.author-meta {
    font-size: 0.9rem;
    color: var(--blog-text-muted);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.author-meta a {
    color: var(--blog-text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.author-meta a:hover {
    color: var(--blog-heading);
}

/* Related Posts List */
.related-posts h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--blog-heading);
    margin-bottom: 1.5rem;
}

.related-list {
    display: flex;
    flex-direction: column;
}

.related-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--blog-border);
    text-decoration: none;
    transition: all 0.2s;
}

.related-item:hover {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
    background: var(--blog-bg-subtle);
    border-radius: 4px;
    border-bottom-color: transparent;
}

.related-title {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--blog-heading);
}

.related-date {
    font-size: 0.9rem;
    color: var(--blog-text-light);
}

/* =========================================
   RIGHT SIDE (Whitespace)
   ========================================= */
.editorial-right {
    /* Purely for visual balance in the 3-column grid */
}

/* =========================================
   PROGRESS BAR
   ========================================= */
.reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: #4CAF50; /* Green color as requested */
    z-index: 9999;
    transition: width 0.1s ease-out;
}

/* =========================================
   RESPONSIVE DESIGN
   ========================================= */
@media (max-width: 1200px) {
    .editorial-grid {
        grid-template-columns: 220px minmax(auto, 680px) 1fr;
        gap: 3rem;
    }
}

@media (max-width: 992px) {
    /* Collapse Right column, reduce sidebar width */
    .editorial-grid {
        grid-template-columns: 200px 1fr;
        gap: 2rem;
    }
    .editorial-right {
        display: none;
    }
}

@media (max-width: 768px) {
    /* Single column layout for mobile */
    .editorial-grid {
        grid-template-columns: 100%;
        padding: 100px 1.5rem 60px;
        overflow-x: hidden;
    }
    
    .desktop-only {
        display: none !important;
    }

    .mobile-only {
        display: block !important;
    }
    
    .editorial-sidebar {
        position: static;
        max-height: none;
        overflow-y: visible;
        margin-bottom: 1.5rem;
        padding-bottom: 1.5rem;
        border-bottom: 1px solid var(--blog-border);
    }

    .toc-list {
        margin-bottom: 0;
    }
    
    .article-title {
        font-size: 2rem;
        word-break: break-word;
    }
    
    .article-body {
        font-size: 1.05rem;
    }

    .article-body pre {
        margin: 2rem -1.5rem; /* Let code blocks touch edges on mobile */
        border-radius: 0;
    }
    
    .related-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}