/* =============================================
   BLOG PUBLIC PAGES — CSS
   Matches existing design system
   ============================================= */

/* Reuse global tokens from new-design-system.css */

/* =============================================
   BLOG HERO / PAGE HEADER
   ============================================= */

.blog-hero {
    padding: 120px 0 60px;
    background: var(--charcoal-black);
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 20% 50%, rgba(255,81,71,0.12) 0%, transparent 60%);
    pointer-events: none;
}

.blog-hero-content { position: relative; z-index: 1; }

.blog-hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(255,81,71,0.12);
    border: 1px solid rgba(255,81,71,0.25);
    color: var(--coral-red);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 12.5px; font-weight: 500;
    margin-bottom: 18px;
}

.blog-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.2;
}

.blog-hero-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.65);
    max-width: 540px;
}

/* =============================================
   CATEGORY FILTER TABS
   ============================================= */

.blog-filter-section {
    background: var(--white);
    border-bottom: 1px solid var(--border-gray);
    position: sticky;
    top: 80px;
    z-index: 50;
}

.blog-filter-inner {
    display: flex; align-items: center; gap: 0;
    overflow-x: auto;
    padding: 0;
    scrollbar-width: none;
}

.blog-filter-inner::-webkit-scrollbar { display: none; }

.cat-filter-btn {
    padding: 14px 20px;
    font-size: 13.5px; font-weight: 500;
    color: var(--gray);
    background: none; border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer; white-space: nowrap;
    transition: all 0.2s;
    font-family: var(--font-body);
}

.cat-filter-btn:hover { color: var(--charcoal-black); }
.cat-filter-btn.active {
    color: var(--coral-red);
    border-bottom-color: var(--coral-red);
}

/* =============================================
   SEARCH BAR
   ============================================= */

.blog-search-section {
    padding: 20px 0;
    background: var(--surface-gray);
}

.blog-search-wrap {
    position: relative; max-width: 480px;
}

.blog-search-wrap svg {
    position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
    color: var(--gray); width: 16px; height: 16px; pointer-events: none;
}

.blog-search-input {
    width: 100%; padding: 12px 14px 12px 42px;
    border: 1.5px solid var(--border-gray);
    border-radius: 100px;
    font-family: var(--font-body); font-size: 14px;
    background: var(--white); color: var(--charcoal-black);
    outline: none; transition: border-color 0.2s;
}

.blog-search-input:focus { border-color: var(--coral-red); }

/* =============================================
   BLOG ARCHIVE GRID
   ============================================= */

.blog-archive-section { padding: 48px 0 80px; }

.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

@media (max-width: 1024px) { .posts-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .posts-grid { grid-template-columns: 1fr; } }

/* =============================================
   BLOG POST CARD
   ============================================= */

.post-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-gray);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex; flex-direction: column;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.1);
}

.post-card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    position: relative;
    background: var(--surface-gray);
}

.post-card-image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.post-card:hover .post-card-image img { transform: scale(1.04); }

.post-card-image-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--surface-gray), #e8edf4);
    color: var(--gray);
}

.post-card-body {
    padding: 20px;
    flex: 1; display: flex; flex-direction: column; gap: 10px;
}

.post-card-meta {
    display: flex; align-items: center; gap: 10px;
    flex-wrap: wrap;
}

.post-cat-badge {
    display: inline-block;
    background: rgba(255,81,71,0.1);
    color: var(--coral-red);
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 11.5px; font-weight: 500;
}

.post-date {
    font-size: 12px; color: var(--gray);
    display: flex; align-items: center; gap: 4px;
}

.post-card-title {
    font-family: var(--font-heading);
    font-size: 16px; font-weight: 700;
    color: var(--charcoal-black);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s;
}

.post-card:hover .post-card-title { color: var(--coral-red); }

.post-card-excerpt {
    font-size: 13.5px;
    color: var(--slate-gray);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.post-card-footer {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.post-author {
    display: flex; align-items: center; gap: 7px;
    font-size: 12.5px; color: var(--slate-gray);
}

.post-author-avatar {
    width: 24px; height: 24px; border-radius: 50%;
    background: var(--coral-red);
    display: flex; align-items: center; justify-content: center;
    font-size: 10px; font-weight: 700; color: white; flex-shrink: 0;
}

.post-read-link {
    font-size: 13px; font-weight: 600;
    color: var(--coral-red);
    display: flex; align-items: center; gap: 4px;
    transition: gap 0.2s;
}

.post-card:hover .post-read-link { gap: 8px; }

/* =============================================
   PAGINATION
   ============================================= */

.pagination {
    display: flex; align-items: center; justify-content: center;
    gap: 8px; margin-top: 48px;
}

.page-btn {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 10px;
    font-size: 14px; font-weight: 500;
    border: 1.5px solid var(--border-gray);
    background: var(--white); color: var(--slate-gray);
    cursor: pointer; transition: all 0.2s;
    font-family: var(--font-body);
}

.page-btn:hover { border-color: var(--coral-red); color: var(--coral-red); }
.page-btn.active { background: var(--coral-red); color: white; border-color: var(--coral-red); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* =============================================
   SINGLE POST PAGE
   ============================================= */

.post-header-section {
    padding: 100px 0 0;
    background: var(--charcoal-black);
}

.post-breadcrumb {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; color: rgba(255,255,255,0.5);
    margin-bottom: 20px;
}

.post-breadcrumb a { color: rgba(255,255,255,0.65); }
.post-breadcrumb a:hover { color: var(--white); }
.post-breadcrumb .sep { opacity: 0.4; }

.post-header-meta {
    display: flex; align-items: center; gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.post-h1 {
    font-family: var(--font-heading);
    font-size: clamp(24px, 4vw, 42px);
    font-weight: 700; line-height: 1.2;
    color: var(--white);
    margin-bottom: 18px;
    max-width: 800px;
}

.post-excerpt-lead {
    font-size: 17px;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
    max-width: 680px;
    margin-bottom: 28px;
}

.post-info-bar {
    display: flex; align-items: center; gap: 20px;
    flex-wrap: wrap;
    padding: 16px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
    font-size: 13.5px;
}

.post-info-item {
    display: flex; align-items: center; gap: 6px;
}

/* Featured image — negative margin to bleed out of dark header */
.post-featured-image-wrap {
    position: relative;
    z-index: 2;
}

.post-featured-image-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 80px;
}

.post-featured-image {
    width: 100%; max-height: 480px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.25);
    display: block;
    margin-top: 36px;
}

/* =============================================
   POST CONTENT AREA
   ============================================= */

.post-body-section {
    padding: 56px 0 80px;
}

.post-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 48px;
    align-items: start;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 60px;
}

@media (max-width: 900px) {
    .post-layout { grid-template-columns: 1fr; padding: 0 24px; }
    .post-sidebar { display: none; }
}

/* Article Typography */
.post-article-content {
    font-size: 16px;
    line-height: 1.8;
    color: #2d3142;
}

.post-article-content h2 {
    font-family: var(--font-heading);
    font-size: 24px; font-weight: 700;
    color: var(--charcoal-black);
    margin: 40px 0 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--surface-gray);
}

.post-article-content h3 {
    font-family: var(--font-heading);
    font-size: 19px; font-weight: 600;
    color: var(--charcoal-black);
    margin: 28px 0 12px;
}

.post-article-content h4 {
    font-family: var(--font-heading);
    font-size: 16px; font-weight: 600;
    color: var(--charcoal-black);
    margin: 22px 0 10px;
}

.post-article-content p { margin-bottom: 18px; }

.post-article-content a {
    color: var(--coral-red);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.post-article-content ul, .post-article-content ol {
    margin: 0 0 18px 24px;
}

.post-article-content li { margin-bottom: 6px; }

.post-article-content blockquote {
    border-left: 4px solid var(--coral-red);
    padding: 12px 20px;
    background: rgba(255,81,71,0.05);
    margin: 24px 0;
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--slate-gray);
}

.post-article-content pre {
    background: var(--charcoal-black);
    color: #f1f5f9;
    padding: 20px;
    border-radius: 12px;
    overflow-x: auto;
    margin: 24px 0;
    font-size: 14px; line-height: 1.6;
}

.post-article-content code {
    background: var(--surface-gray);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.88em;
    color: var(--coral-red);
}

.post-article-content pre code {
    background: none; color: inherit; padding: 0;
}

.post-article-content img {
    max-width: 100%;
    border-radius: 12px;
    margin: 24px 0;
    display: block;
}

.post-article-content figure {
    margin: 28px 0;
}

.post-article-content figcaption {
    text-align: center;
    font-size: 13px;
    color: var(--gray);
    margin-top: 8px;
}

.post-article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14.5px;
    border-radius: 10px;
    overflow: hidden;
}

.post-article-content th {
    background: var(--charcoal-black);
    color: var(--white);
    padding: 12px 16px;
    text-align: left; font-weight: 600;
}

.post-article-content td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-gray);
}

.post-article-content tr:last-child td { border-bottom: none; }
.post-article-content tr:nth-child(even) td { background: rgba(0,0,0,0.02); }

.post-article-content hr {
    border: none;
    border-top: 2px solid var(--border-gray);
    margin: 36px 0;
}

/* YouTube embed */
.post-article-content .yt-embed-wrap {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 12px;
    margin: 28px 0;
}

.post-article-content .yt-embed-wrap iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: none;
}

/* =============================================
   POST SIDEBAR
   ============================================= */

.post-sidebar { position: sticky; top: 100px; }

.sidebar-toc {
    background: var(--surface-gray);
    border-radius: 16px; padding: 20px;
    margin-bottom: 20px;
}

.sidebar-toc h3 {
    font-family: var(--font-heading);
    font-size: 14px; font-weight: 600;
    color: var(--charcoal-black);
    margin-bottom: 14px;
}

.toc-list { list-style: none; }

.toc-link {
    display: block;
    padding: 6px 0;
    font-size: 13px;
    color: var(--slate-gray);
    border-left: 2px solid transparent;
    padding-left: 10px;
    margin-left: 0;
    transition: all 0.2s;
}

.toc-link:hover, .toc-link.active {
    color: var(--coral-red);
    border-left-color: var(--coral-red);
}

.toc-h3 { padding-left: 20px; font-size: 12.5px; }

/* Share buttons */
.share-widget { background: var(--white); border: 1px solid var(--border-gray); border-radius: 16px; padding: 20px; }

.share-widget h3 {
    font-family: var(--font-heading);
    font-size: 14px; font-weight: 600;
    color: var(--charcoal-black);
    margin-bottom: 14px;
}

.share-buttons { display: flex; gap: 8px; flex-wrap: wrap; }

.share-btn {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 12.5px; font-weight: 500;
    cursor: pointer; border: none;
    transition: all 0.2s; font-family: var(--font-body);
    flex: 1; justify-content: center;
}

.share-btn.twitter { background: #1da1f2; color: white; }
.share-btn.linkedin { background: #0077b5; color: white; }
.share-btn.copy { background: var(--surface-gray); color: var(--charcoal-black); border: 1px solid var(--border-gray); }
.share-btn:hover { opacity: 0.88; }

/* =============================================
   RELATED POSTS
   ============================================= */

.related-posts-section {
    padding: 60px 0 80px;
    background: var(--surface-gray);
}

.related-posts-section .section-heading {
    font-family: var(--font-heading);
    font-size: 24px; font-weight: 700;
    color: var(--charcoal-black);
    margin-bottom: 28px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 900px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .related-grid { grid-template-columns: 1fr; } }

/* =============================================
   CATEGORY ARCHIVE
   ============================================= */

.category-header {
    padding: 100px 0 48px;
    background: var(--charcoal-black);
}

.category-meta {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 16px;
}

.category-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.65);
    max-width: 600px; line-height: 1.7;
}

/* =============================================
   NO POSTS / LOADING
   ============================================= */

.blog-loading {
    display: flex; flex-direction: column; align-items: center;
    gap: 16px; padding: 80px 0; color: var(--gray);
}

.blog-loading .spinner {
    width: 36px; height: 36px;
    border-width: 3px;
}

.blog-empty {
    text-align: center;
    padding: 80px 0; color: var(--gray);
}

.blog-empty h3 { font-size: 20px; color: var(--slate-gray); margin-bottom: 8px; }

/* Responsive adjustments */
@media (max-width: 768px) {
    .blog-hero { padding: 100px 0 40px; }
    .post-header-section { padding: 80px 0 0; }
    .post-featured-image-inner { padding: 0 24px; }
    .post-featured-image { border-radius: 12px; }
    .post-article-content h2 { font-size: 20px; }
    .post-article-content h3 { font-size: 17px; }
}