/* ============================================
   BLOG STYLES - Phase 4
   ============================================ */

:root {
    --blog-max-width: 100%;
    --prose-max-width: 100%;
}

.blog-page,
.blog-post-page {
    background-color: var(--bg-primary);
}

.blog-container {
    max-width: var(--blog-max-width);
    margin: 0 auto;
    padding: 120px 5% 80px;
}

.blog-header {
    text-align: center;
    margin-bottom: 4rem;
}

.blog-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.blog-subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
}

/* Controls */
.blog-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    gap: 2rem;
    flex-wrap: wrap;
}

.blog-filters {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-pill {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s var(--ease-smooth);
}

.filter-pill:hover,
.filter-pill.active {
    background: rgba(0, 122, 255, 0.1);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.blog-sort select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    cursor: pointer;
    outline: none;
}

/* Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
    min-height: 400px;
    justify-content: center;
}

.blog-card {
    background: rgba(255, 255, 255, 0.03);
    /* Slightly brighter base */
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    transition: all 0.5s var(--ease-out-expo);
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    /* Deeper blur for premium feel */
}

.blog-card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: var(--accent-blue);
    background: var(--bg-glass-hover);
    box-shadow: 0 30px 60px -15px rgba(0, 122, 255, 0.2);
}

.blog-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.8rem;
    color: var(--accent-blue);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.blog-card-date {
    color: var(--text-tertiary);
    font-weight: 400;
}

.blog-card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
    color: var(--text-primary);
}

.blog-card-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    flex-grow: 1;
    opacity: 0.85;
    /* Better visibility than the default faint state */
}

.blog-card-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 0.9rem;
}

.blog-card-footer svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-footer svg {
    transform: translateX(5px);
}

/* Pagination */
.blog-pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 4rem;
}

.page-btn {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.page-btn.active {
    background: var(--accent-blue);
    color: #fff;
    border-color: var(--accent-blue);
}

/* --- POST READER STYLES --- */
.post-reader {
    max-width: var(--prose-max-width);
    margin: 0 auto;
    padding: 140px 5% 100px;
    position: relative;
}

.post-reader.has-toc {
    display: flex;
    gap: 4rem;
    align-items: flex-start;
}

.post-main-content {
    flex: 1;
    min-width: 0;
    /* Prevent flex box blowout */
}

/* --- TABLE OF CONTENTS --- */
.post-toc {
    position: sticky;
    top: 140px;
    width: 250px;
    flex-shrink: 0;
    max-height: calc(100vh - 160px);
    overflow-y: auto;
    padding-right: 1rem;
    display: none;
}

@media (min-width: 1024px) {
    .post-toc {
        display: block;
    }
}

.toc-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-tertiary);
    margin-bottom: 1.5rem;
    font-family: var(--font-mono);
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.toc-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    line-height: 1.4;
    transition: all 0.2s ease;
    display: block;
    border-left: 2px solid transparent;
    padding-left: 1rem;
}

.toc-link:hover {
    color: var(--accent-blue);
}

.toc-link.active {
    color: var(--text-primary);
    border-left-color: var(--accent-blue);
    font-weight: 500;
}

.toc-level-3 {
    margin-left: 1rem;
    font-size: 0.85rem;
}

.post-header {
    margin-bottom: 5rem;
    position: relative;
    padding-top: 80px;
    /* added to prevent overlap with sticky nav top bar */
}

.post-top-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.post-meta-left {
    display: flex;
    gap: 2rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.post-category {
    color: var(--accent-blue);
    font-weight: 600;
    text-transform: uppercase;
}

.post-title {
    font-size: clamp(2.5rem, 8vw, 4.2rem);
    /* Increased size */
    font-weight: 900;
    line-height: 1.05;
    margin-bottom: 2.5rem;
    letter-spacing: -0.02em;
    color: #fff;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.1);
}

.post-progress-container {
    width: 100%;
    height: 2px;
    background: transparent;
    /* Simple line track */
    margin-top: 3rem;
}

.post-progress-bar {
    height: 4px;
    /* Slightly thicker for character */
    background: var(--accent-blue);
    width: 80px;
    /* Static short line as requested */
    border-radius: 2px;
    margin-top: 1rem;
    box-shadow: 0 0 10px var(--accent-glow);
}

/* Vertical Sidebar Progress */
.side-progress-container {
    position: fixed;
    left: 40px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    /* More prominent */
    height: 70vh;
    /* Significantly longer as requested */
    background: rgba(255, 255, 255, 0.05);
    z-index: 1000;
    border-radius: 10px;
}

.side-progress-bar {
    width: 100%;
    height: 0%;
    background: var(--accent-blue);
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Blog Prose (Rendered Markdown) */
.blog-prose {
    color: var(--text-primary);
    font-size: 1.125rem;
    line-height: 1.8;
}

.blog-prose h2 {
    font-size: 2rem;
    margin: 3rem 0 1.5rem;
    color: #fff;
    font-weight: 700;
}

.blog-prose h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: #fff;
}

.blog-prose p {
    margin-bottom: 2rem;
    color: var(--text-primary);
    /* Better visibility/contrast */
    opacity: 0.9;
}

.blog-prose strong {
    color: var(--text-primary);
}

.blog-prose blockquote {
    border-left: 4px solid var(--accent-blue);
    background: var(--bg-tertiary);
    padding: 1.5rem 2rem;
    margin: 2rem 0;
    border-radius: 0 12px 12px 0;
    font-style: italic;
}

.blog-prose code {
    background: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--accent-blue-light);
}

/* Copy Code Button */
.code-block-wrapper {
    position: relative;
    margin: 2rem 0;
}

.copy-code-btn {
    position: absolute;
    top: 0.6rem;
    right: 0.8rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border-radius: 6px;
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10;
}

.copy-code-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.blog-prose pre {
    background: #0d1117;
    padding: 1.5rem;
    padding-top: 2.8rem;
    border-radius: 12px;
    overflow-x: auto;
    margin: 0;
    /* Wrapper handles margin */
    border: 1px solid var(--border-color);
}

.blog-prose pre code {
    background: transparent;
    padding: 0;
    color: inherit;
    font-size: 0.9rem;
}

.blog-prose ul,
.blog-prose ol {
    margin-bottom: 2rem;
    padding-left: 1.5rem;
}

.blog-prose li {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.blog-prose img {
    max-width: 100%;
    border-radius: 16px;
    margin: 2.5rem 0;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.post-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 5rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

/* Share Button Positioned in Top Meta Bar */
.share-container-top {
    position: static;
    /* No longer absolute */
}

.share-btn {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-blue);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s var(--ease-smooth);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.share-btn:hover {
    border-color: var(--accent-blue);
    background: rgba(0, 122, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 122, 255, 0.1);
}

.nav-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s var(--ease-smooth);
    padding: 0.75rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 100px;
}

.nav-link-btn:hover {
    border-color: var(--accent-blue);
    background: var(--bg-glass-hover);
    color: var(--accent-blue);
}

.share-btn.copied {
    background: var(--accent-blue) !important;
    color: #fff !important;
    border-color: var(--accent-blue) !important;
}

/* Modal for Share */
.share-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(10px);
}

.share-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.share-box {
    background: var(--bg-secondary);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 500px;
    text-align: center;
    transform: scale(0.9);
    transition: transform 0.3s var(--spring);
}

.share-modal.active .share-box {
    transform: scale(1);
}

.share-url-container {
    display: flex;
    gap: 0.5rem;
    background: var(--bg-tertiary);
    padding: 0.5rem;
    border-radius: 12px;
    margin: 1.5rem 0;
    border: 1px solid var(--border-color);
}

.share-url-input {
    flex-grow: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.5rem;
    outline: none;
}

.copy-btn {
    background: var(--accent-blue);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
}


/* Blog Prose Links */
.blog-prose a {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
    border-bottom: 1px solid transparent;
}

.blog-prose a:hover {
    color: var(--accent-blue-light);
    border-bottom-color: var(--accent-blue-light);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .blog-controls {
        flex-direction: column;
        align-items: flex-start;
    }

    .blog-sort {
        width: 100%;
    }

    .blog-sort select {
        width: 100%;
    }

    .blog-title {
        font-size: 3rem;
    }

    .side-progress-container {
        left: 3px;
        /* Stick to the extreme left to avoid overlap */
        width: 2px;
        /* Thinner on mobile */
    }

    /* Hide navigation on mobile blog post pages as requested */
    .blog-post-page .nav {
        display: none !important;
    }

    /* Adjust the top padding so the text isn't miles below the top edge */
    .blog-post-page .post-reader {
        padding-top: 2rem !important;
        padding-left: 1rem !important;
        padding-right: 1rem !important;
    }

    .blog-post-page .post-header {
        padding-top: 1rem !important;
    }
}