/* ===================================================================
   BLOG CSS
   Shared and post-specific styles for /blog/ pages.
   Blog pages use the site's main layout (page-header, main-layout,
   sidebar, card, etc.) from styles.css. This file only contains
   styles specific to the blog components themselves.
   =================================================================== */

/* -------------------------------------------------------------------
   LISTING: Category filter buttons
   ------------------------------------------------------------------- */

.blog-filter {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.blog-filter__btn {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
}

.blog-filter__btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.blog-filter__btn.is-active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* -------------------------------------------------------------------
   LISTING: Blog grid (listing page)
   ------------------------------------------------------------------- */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.blog-grid__card {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s;
}

.blog-grid__card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.blog-grid__meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.blog-grid__category {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary);
    background: var(--primary-bg);
    padding: 0.25rem 0.625rem;
    border-radius: 999px;
}

.blog-grid__date {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.blog-grid__name {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.blog-grid__excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 1.25rem;
    flex: 1;
}

.blog-grid__link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    transition: gap 0.15s;
}

.blog-grid__card:hover .blog-grid__link {
    gap: 0.625rem;
}

@media (max-width: 700px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }
}

/* -------------------------------------------------------------------
   SIDEBAR: Table of contents (jump links)
   ------------------------------------------------------------------- */

.blog-toc {
    margin-bottom: 1.25rem;
}

.blog-toc__list {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: toc;
}

.blog-toc__list li {
    counter-increment: toc;
}

.blog-toc__list a {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius);
    transition: all 0.15s;
}

.blog-toc__list a::before {
    content: counter(toc) ".";
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    min-width: 1.25rem;
}

.blog-toc__list a:hover {
    background: var(--bg-secondary);
    color: var(--primary);
}

@media (max-width: 768px) {
    .blog-toc {
        display: none;
    }
}

/* -------------------------------------------------------------------
   POST: Prose content
   ------------------------------------------------------------------- */

.blog-prose {
    line-height: 1.8;
    color: var(--text-primary);
}

.blog-prose h2 {
    font-size: 1.375rem;
    font-weight: 700;
    margin: 2rem 0 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    scroll-margin-top: 2rem;
}

.blog-prose h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.blog-prose p {
    margin: 0 0 1.25rem;
    font-size: 1rem;
}

.blog-prose ul,
.blog-prose ol {
    margin: 0 0 1.25rem;
    padding-left: 1.5rem;
}

.blog-prose li {
    margin-bottom: 0.375rem;
}

.blog-prose strong {
    font-weight: 600;
}

.blog-prose a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.blog-prose a:hover {
    text-decoration: none;
}

/* Post meta bar (date, author, category) */
.blog-post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.blog-post-meta__category {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary);
    background: var(--primary-bg);
    padding: 0.25rem 0.625rem;
    border-radius: 999px;
}

/* -------------------------------------------------------------------
   SIDEBAR: Blog navigation
   ------------------------------------------------------------------- */

.blog-nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.15s;
    border: 1px solid transparent;
}

.blog-nav-link:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.blog-nav-link.is-active {
    background: var(--primary-bg);
    color: var(--primary);
    border-color: var(--primary);
    font-weight: 600;
}

/* -------------------------------------------------------------------
   SIDEBAR: Author link
   ------------------------------------------------------------------- */

.blog-author-link {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    padding: 0.75rem;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-secondary);
    transition: all 0.15s;
}

.blog-author-link strong {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.blog-author-link span {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.blog-author-link:hover {
    background: var(--bg-secondary);
}

.blog-author-link:hover strong {
    color: var(--primary);
}

/* -------------------------------------------------------------------
   AUTHOR PAGE: Credentials list
   ------------------------------------------------------------------- */

.author-credentials {
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem;
}

.author-credentials li {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.625rem 0;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.author-credentials li:last-child {
    border-bottom: none;
}

.author-credentials li::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    flex-shrink: 0;
}

/* Blog images */
.blog-figure {
    margin: 1.75rem 0;
    padding: 0;
}

.blog-figure img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    display: block;
    object-fit: cover;
    max-height: 420px;
}

.blog-figure figcaption {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    line-height: 1.5;
    font-style: italic;
}

/* Blog info box */
.blog-info-box {
    background: var(--bg-secondary, #f9fafb);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem;
    margin: 1.75rem 0;
}

.blog-info-box h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.75rem;
}

.blog-info-box ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.blog-info-box li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 0.375rem 0;
    border-bottom: 1px solid var(--border-light, #f3f4f6);
    line-height: 1.5;
}

.blog-info-box li:last-child {
    border-bottom: none;
}

.blog-info-box li strong {
    color: var(--text-primary);
    min-width: 120px;
    display: inline-block;
}

/* Blog table */
.blog-table-wrap {
    overflow-x: auto;
    margin: 1.25rem 0;
    border: 1px solid var(--border-color);
    border-radius: 10px;
}

.blog-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.blog-table thead {
    background: var(--bg-secondary, #f9fafb);
}

.blog-table th {
    text-align: left;
    padding: 0.625rem 0.875rem;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

.blog-table td {
    padding: 0.5rem 0.875rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light, #f3f4f6);
}

.blog-table tr:last-child td {
    border-bottom: none;
}

.blog-table a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}

.blog-table a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .blog-figure img {
        border-radius: 8px;
        max-height: 280px;
    }
    .blog-info-box {
        padding: 1.25rem;
    }
}