/*
 * Modern Blog Post Styles
 * Features: Reading time, sticky TOC, progress bar, clean typography
 */

/* Reading Progress Bar */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--gold) 0%, var(--gold-light) 100%);
    z-index: 9999;
    transition: width 0.1s ease;
}

/* Blog Header */
.blog-header {
    background: linear-gradient(135deg, var(--deep-teal) 0%, var(--teal-light) 100%);
    padding: 8rem 2rem 4rem;
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
}

.blog-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.blog-header-inner {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.blog-category {
    display: inline-block;
    background: rgba(251, 191, 36, 0.2);
    color: var(--gold);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

.blog-header h1 {
    color: var(--white);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    color: rgba(255,255,255,0.9);
    font-size: 0.95rem;
}

.blog-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-meta-item svg {
    width: 18px;
    height: 18px;
    opacity: 0.8;
}

.reading-time {
    background: rgba(255,255,255,0.15);
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
    font-weight: 500;
}

/* Main Blog Layout */
.blog-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    align-items: start;
}

/* Sticky Table of Contents */
.toc-sidebar {
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

.toc-container {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0,0,0,0.05);
}

.toc-title {
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

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

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

.toc-list a {
    display: block;
    color: var(--gray);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.4rem 0.75rem;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    transition: all var(--transition-fast);
    line-height: 1.4;
}

.toc-list a:hover {
    color: var(--deep-teal);
    background: var(--cream);
    border-left-color: var(--gold);
}

.toc-list a.active {
    color: var(--deep-teal);
    background: var(--cream);
    border-left-color: var(--gold);
    font-weight: 500;
}

.toc-list .toc-h3 {
    padding-left: 1.5rem;
    font-size: 0.85rem;
}

/* Blog Content */
.blog-content {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0,0,0,0.05);
}

.blog-content h2 {
    font-size: 1.75rem;
    color: var(--charcoal);
    margin: 2.5rem 0 1rem;
    padding-top: 1rem;
    scroll-margin-top: 100px;
}

.blog-content h2:first-child {
    margin-top: 0;
    padding-top: 0;
}

.blog-content h3 {
    font-size: 1.35rem;
    color: var(--charcoal);
    margin: 2rem 0 0.75rem;
    scroll-margin-top: 100px;
}

.blog-content p {
    color: var(--gray);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.blog-content ul,
.blog-content ol {
    color: var(--gray);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.blog-content li {
    margin-bottom: 0.5rem;
}

.blog-content a {
    color: var(--deep-teal);
    text-decoration: underline;
    text-decoration-color: var(--gold);
    text-underline-offset: 3px;
}

.blog-content a:hover {
    color: var(--teal-light);
}

.blog-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
}

.blog-content blockquote {
    border-left: 4px solid var(--gold);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--gray);
}

.blog-content code {
    background: var(--cream);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
}

.blog-content pre {
    background: var(--charcoal);
    color: var(--cream);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 1.5rem 0;
}

.blog-content pre code {
    background: none;
    padding: 0;
}

/* Info Boxes */
.info-box {
    background: var(--cream);
    border-left: 4px solid var(--deep-teal);
    padding: 1.5rem;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 2rem 0;
}

.info-box.tip {
    border-left-color: var(--gold);
    background: rgba(251, 191, 36, 0.1);
}

.info-box.warning {
    border-left-color: #EF4444;
    background: rgba(239, 68, 68, 0.1);
}

.info-box.success {
    border-left-color: var(--success);
    background: rgba(34, 197, 94, 0.1);
}

.info-box-title {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--charcoal);
}

/* Tables */
.blog-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    font-size: 0.95rem;
}

.blog-content th,
.blog-content td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.blog-content th {
    background: var(--cream);
    font-weight: 600;
    color: var(--charcoal);
}

.blog-content tr:hover td {
    background: var(--cream);
}

/* Highlight Box (for key stats) */
.highlight-box {
    background: linear-gradient(135deg, var(--deep-teal) 0%, var(--teal-light) 100%);
    color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin: 2rem 0;
    text-align: center;
}

.highlight-box h3 {
    color: var(--white);
    margin-bottom: 0.5rem;
}

.highlight-box .big-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--gold);
    font-family: 'Libre Baskerville', serif;
}

.highlight-box p {
    color: rgba(255,255,255,0.9);
    margin: 0;
}

/* CTA Box */
.cta-box {
    background: var(--cream);
    border: 2px solid var(--gold);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    margin: 2.5rem 0;
}

.cta-box h3 {
    color: var(--charcoal);
    margin-bottom: 1rem;
}

.cta-box p {
    margin-bottom: 1.5rem;
}

.cta-box .btn {
    display: inline-flex;
}

/* Share Section */
.share-section {
    border-top: 1px solid rgba(0,0,0,0.08);
    padding-top: 2rem;
    margin-top: 3rem;
}

.share-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray);
    margin-bottom: 1rem;
}

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

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--cream);
    color: var(--gray);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.share-btn:hover {
    background: var(--deep-teal);
    color: var(--white);
    transform: translateY(-2px);
}

/* Author Box */
.author-box {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    background: var(--cream);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-top: 2rem;
}

.author-avatar {
    width: 64px;
    height: 64px;
    background: var(--deep-teal);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.author-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.author-info p {
    font-size: 0.9rem;
    color: var(--gray);
    margin: 0;
}

/* Related Posts */
.related-posts {
    background: var(--cream);
    padding: 4rem 2rem;
    margin-top: 0;
}

.related-posts-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.related-posts h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.related-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0,0,0,0.05);
}

.related-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.related-card h3 {
    font-size: 1.1rem;
    color: var(--charcoal);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.related-card p {
    font-size: 0.9rem;
    color: var(--gray);
    margin: 0;
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .blog-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .toc-sidebar {
        position: relative;
        top: 0;
        max-height: none;
    }

    .toc-container {
        display: none;
    }

    /* Mobile TOC toggle */
    .toc-mobile-toggle {
        display: block;
        width: 100%;
        background: var(--white);
        border: 1px solid rgba(0,0,0,0.1);
        border-radius: var(--radius-md);
        padding: 1rem;
        font-family: 'Outfit', sans-serif;
        font-weight: 600;
        color: var(--charcoal);
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .toc-mobile-toggle.active + .toc-container {
        display: block;
        margin-top: 1rem;
    }
}

@media (min-width: 1025px) {
    .toc-mobile-toggle {
        display: none;
    }
}

@media (max-width: 768px) {
    .blog-header {
        padding: 7rem 1.5rem 3rem;
    }

    .blog-header h1 {
        font-size: 1.75rem;
    }

    .blog-meta {
        gap: 1rem;
    }

    .blog-layout {
        padding: 2rem 1rem;
    }

    .blog-content {
        padding: 1.5rem;
    }

    .blog-content h2 {
        font-size: 1.5rem;
    }

    .blog-content h3 {
        font-size: 1.2rem;
    }

    .blog-content p,
    .blog-content ul,
    .blog-content ol {
        font-size: 1rem;
    }

    .author-box {
        flex-direction: column;
        text-align: center;
    }

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

/* Print styles */
@media print {
    .toc-sidebar,
    .reading-progress,
    .share-section,
    .nav,
    .footer {
        display: none !important;
    }

    .blog-layout {
        display: block;
    }

    .blog-content {
        box-shadow: none;
        border: none;
        padding: 0;
    }
}