/* ============================================================
 * Hashbox Blog — Editorial design
 * Dark hero / archive shells, warm light reading column for posts.
 * ============================================================ */

/* ---------- Shared eyebrow + container helpers ---------- */
.hb-eyebrow {
    display: inline-block;
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--hb-accent-blue-soft);
    margin-bottom: 1rem;
}

.hb-empty {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--hb-text-muted);
}

/* ---------- Blog hero (index + archive) ---------- */
.hb-blog-hero {
    position: relative;
    padding: 8rem 0 3.5rem; /* nav offset + breathing room */
    background:
        radial-gradient(ellipse 80% 60% at 20% 0%, color-mix(in oklab, var(--hb-accent-blue) 18%, transparent) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 100%, color-mix(in oklab, var(--hb-accent-violet) 14%, transparent) 0%, transparent 60%),
        var(--hb-bg);
    color: var(--hb-text-strong);
    border-bottom: 1px solid var(--hb-border);
}

.hb-blog-hero__title {
    /* readable line breaks for Thai */
    word-break: keep-all;
    overflow-wrap: break-word;
}

.hb-blog-hero__title {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: clamp(2.25rem, 1.5rem + 3.5vw, 4.5rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin: 0 0 1.25rem;
    color: var(--hb-text-strong);
    max-width: 22ch;
}

.hb-blog-hero__lede {
    font-size: clamp(1.05rem, 0.95rem + 0.4vw, 1.25rem);
    line-height: 1.7;
    color: var(--hb-text);
    max-width: 60ch;
    margin: 0 0 2rem;
}

.hb-blog-hero--archive {
    padding: 5rem 0 2.5rem;
}

/* Category pills */
.hb-blog-cats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 2rem;
}

.hb-blog-cats__pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--hb-border-strong);
    border-radius: 9999px;
    background: var(--hb-surface-1);
    color: var(--hb-text);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
}

.hb-blog-cats__pill:hover,
.hb-blog-cats__pill.is-active {
    background: var(--hb-accent-blue);
    border-color: var(--hb-accent-blue);
    color: white;
    transform: translateY(-1px);
}

.hb-blog-cats__count {
    font-size: 0.75rem;
    opacity: 0.7;
    font-variant-numeric: tabular-nums;
}

/* ---------- Featured post (hero on blog index) ---------- */
.hb-blog-featured {
    background: var(--hb-bg);
    padding: 3rem 0;
}

.hb-blog-featured__card {
    border-radius: 1.5rem;
    overflow: hidden;
    background: var(--hb-surface-1);
    border: 1px solid var(--hb-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hb-blog-featured__card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px -20px color-mix(in oklab, var(--hb-accent-blue) 30%, transparent);
}

.hb-blog-featured__link {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    text-decoration: none;
    color: inherit;
}

.hb-blog-featured__media {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.hb-blog-featured__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hb-blog-featured__body {
    padding: clamp(1.5rem, 2vw, 3rem);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1rem;
}

.hb-blog-featured__cat {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--hb-accent-blue-soft);
}

.hb-blog-featured__title {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: clamp(1.5rem, 1rem + 1.8vw, 2.25rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--hb-text-strong);
    margin: 0;
}

.hb-blog-featured__excerpt {
    color: var(--hb-text);
    line-height: 1.7;
    margin: 0;
}

.hb-blog-featured__meta {
    display: flex;
    gap: 0.6rem;
    font-size: 0.875rem;
    color: var(--hb-text-muted);
}

@media (max-width: 768px) {
    .hb-blog-featured__link {
        grid-template-columns: 1fr;
    }
}

/* ---------- Blog grid section ---------- */
.hb-blog-grid-section {
    padding: 4rem 0 6rem;
    background: var(--hb-bg);
}

.hb-blog-grid-section__header {
    margin-bottom: 2.5rem;
}

.hb-h2 {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: clamp(1.5rem, 1rem + 1.5vw, 2.25rem);
    color: var(--hb-text-strong);
    margin: 0;
    letter-spacing: -0.01em;
}

.hb-blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

/* ---------- Post card variants ---------- */
.hb-card {
    background: var(--hb-surface-1);
    border: 1px solid var(--hb-border);
    border-radius: 1rem;
    overflow: hidden;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.hb-card:hover {
    transform: translateY(-4px);
    border-color: var(--hb-accent-blue-soft);
    box-shadow: 0 16px 40px -16px color-mix(in oklab, var(--hb-accent-blue) 25%, transparent);
}

.hb-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.hb-card__media {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--hb-surface-2);
}

.hb-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.hb-card:hover .hb-card__media img {
    transform: scale(1.04);
}

.hb-card__body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.hb-card__cat {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--hb-accent-blue-soft);
    align-self: flex-start;
}

.hb-card__title {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: 1.25rem;
    line-height: 1.3;
    color: var(--hb-text-strong);
    margin: 0;
    letter-spacing: -0.01em;
}

.hb-card__excerpt {
    color: var(--hb-text);
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.hb-card__meta {
    margin-top: auto;
    display: flex;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--hb-text-muted);
    padding-top: 0.5rem;
}

.hb-card--compact .hb-card__body {
    padding: 1.25rem;
}

.hb-card--compact .hb-card__title {
    font-size: 1.05rem;
}

/* ---------- Pagination ---------- */
.hb-pagination {
    margin-top: 3rem;
    display: flex;
    justify-content: center;
}

.hb-pagination__list {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.hb-pagination__list a,
.hb-pagination__list span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.85rem;
    border: 1px solid var(--hb-border-strong);
    border-radius: 0.5rem;
    background: var(--hb-surface-1);
    color: var(--hb-text);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.hb-pagination__list a:hover {
    background: var(--hb-surface-2);
    border-color: var(--hb-accent-blue-soft);
}

.hb-pagination__list .current {
    background: var(--hb-accent-blue);
    border-color: var(--hb-accent-blue);
    color: white;
}

/* ---------- Single post — long-form reading ---------- */
.hb-post {
    background: #FBFAF6; /* warm cream for reading */
    color: #1F1F26;
}

.hb-post__hero {
    background:
        radial-gradient(ellipse 80% 60% at 50% 0%, color-mix(in oklab, var(--hb-accent-blue) 14%, transparent) 0%, transparent 60%),
        var(--hb-bg);
    color: var(--hb-text-strong);
    padding: 6rem 0 0;
}

.hb-post__cat {
    display: inline-block;
    margin: 1.5rem 0 1rem;
    padding: 0.4rem 0.9rem;
    background: color-mix(in oklab, var(--hb-accent-blue) 20%, transparent);
    border: 1px solid color-mix(in oklab, var(--hb-accent-blue) 40%, transparent);
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--hb-accent-blue-soft);
    text-decoration: none;
    letter-spacing: 0.04em;
}

.hb-post__title {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: clamp(2rem, 1.4rem + 3vw, 3.75rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--hb-text-strong);
    margin: 0 0 1.25rem;
    max-width: 24ch;
}

.hb-post__lede {
    font-size: clamp(1.125rem, 1rem + 0.4vw, 1.375rem);
    line-height: 1.6;
    color: var(--hb-text);
    max-width: 60ch;
    margin: 0 0 2rem;
}

.hb-post__featured {
    margin: 3rem auto 0;
    max-width: 1200px;
    border-radius: 1.5rem 1.5rem 0 0;
    overflow: hidden;
}

.hb-post__featured-img {
    width: 100%;
    height: auto;
    display: block;
}

.hb-post__body {
    padding: 4rem 0 6rem;
}

.hb-post__layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 4rem;
    align-items: start;
}

@media (max-width: 1024px) {
    .hb-post__layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.hb-post__sidebar {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

@media (max-width: 1024px) {
    .hb-post__sidebar {
        position: static;
    }
}

/* Post meta */
.hb-post-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    color: var(--hb-text-muted);
    padding: 1.5rem 0 2.5rem;
    border-top: 1px solid var(--hb-border);
}

.hb-post-meta__author {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--hb-text);
}

.hb-post-meta__avatar {
    border-radius: 9999px;
    width: 40px;
    height: 40px;
}

.hb-post-meta__label {
    font-size: 0.8rem;
    color: var(--hb-text-muted);
    display: block;
    line-height: 1.1;
}

.hb-post-meta__author strong {
    color: var(--hb-text-strong);
}

.hb-post-meta__sep {
    color: var(--hb-text-faint);
}

/* TOC */
.hb-post-toc {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 0.75rem;
    padding: 1.25rem 1.25rem 1.25rem 1.5rem;
    backdrop-filter: blur(8px);
}

.hb-post-toc__title {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #44444A;
    margin: 0 0 1rem;
}

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

.hb-post-toc__item {
    counter-increment: toc;
    margin-bottom: 0.6rem;
    font-size: 0.875rem;
    line-height: 1.4;
}

.hb-post-toc__item--h3 {
    padding-left: 1rem;
    font-size: 0.8rem;
    color: #44444A;
}

.hb-post-toc__item a {
    color: #1F1F26;
    text-decoration: none;
    transition: color 0.2s ease;
    display: block;
    padding: 0.25rem 0;
}

.hb-post-toc__item a:hover {
    color: var(--hb-accent-blue-strong);
}

/* Share buttons */
.hb-post-share {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.hb-post-share__label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #6E6E72;
    margin-right: 0.25rem;
}

.hb-post-share__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 9999px;
    background: white;
    color: #44444A;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.hb-post-share__btn:hover {
    background: var(--hb-accent-blue);
    border-color: var(--hb-accent-blue);
    color: white;
    transform: translateY(-2px);
}

/* Prose (article body) */
.hb-prose {
    color: #1F1F26;
    font-size: 1.0625rem;
    line-height: 1.75;
    max-width: 68ch;
}

.hb-prose > * + * {
    margin-top: 1.25em;
}

.hb-prose h2 {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: clamp(1.5rem, 1.2rem + 0.8vw, 2rem);
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: #0B0B12;
    margin-top: 3rem;
    margin-bottom: 1rem;
    scroll-margin-top: 100px;
}

.hb-prose h3 {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: 1.375rem;
    line-height: 1.3;
    color: #0B0B12;
    margin-top: 2.25rem;
    margin-bottom: 0.75rem;
    scroll-margin-top: 100px;
}

.hb-prose p {
    margin: 1.25em 0;
}

.hb-prose a {
    color: var(--hb-accent-blue-strong);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.hb-prose a:hover {
    color: var(--hb-accent-blue);
}

.hb-prose strong {
    color: #0B0B12;
    font-weight: 700;
}

.hb-prose ul,
.hb-prose ol {
    padding-left: 1.5rem;
}

.hb-prose li {
    margin: 0.5rem 0;
}

.hb-prose blockquote {
    border-left: 4px solid var(--hb-accent-blue);
    padding: 1rem 0 1rem 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    font-size: 1.2rem;
    line-height: 1.6;
    color: #1F1F26;
    background: rgba(79, 70, 229, 0.04);
    border-radius: 0 0.5rem 0.5rem 0;
}

.hb-prose code {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    background: rgba(0, 0, 0, 0.06);
    padding: 0.15em 0.4em;
    border-radius: 0.25rem;
    font-size: 0.9em;
    color: #BE123C;
}

.hb-prose pre {
    background: #0B0B12;
    color: #F5F5F4;
    padding: 1.25rem 1.5rem;
    border-radius: 0.75rem;
    overflow-x: auto;
    font-size: 0.875rem;
    line-height: 1.6;
    margin: 2rem 0;
}

.hb-prose pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

.hb-prose img {
    max-width: 100%;
    height: auto;
    border-radius: 0.75rem;
    margin: 2rem 0;
}

.hb-prose figure {
    margin: 2rem 0;
}

.hb-prose figcaption {
    text-align: center;
    font-size: 0.875rem;
    color: #6E6E72;
    margin-top: 0.5rem;
}

.hb-prose hr {
    border: 0;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    margin: 3rem 0;
}

/* Tags */
.hb-post__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.hb-post__tag {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    background: rgba(79, 70, 229, 0.08);
    border-radius: 9999px;
    font-size: 0.8rem;
    color: var(--hb-accent-blue-strong);
    text-decoration: none;
    transition: background 0.2s ease;
}

.hb-post__tag:hover {
    background: rgba(79, 70, 229, 0.16);
}

/* End-of-post CTA */
.hb-post__cta {
    margin-top: 4rem;
    padding: 3rem 2rem;
    background: var(--hb-grad-primary);
    border-radius: 1.5rem;
    color: white;
    text-align: center;
}

.hb-post__cta-title {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: 1.75rem;
    margin: 0 0 0.75rem;
    color: white;
    letter-spacing: -0.01em;
}

.hb-post__cta-text {
    margin: 0 0 1.5rem;
    opacity: 0.95;
    max-width: 50ch;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hb-post__cta .hb-btn {
    background: white;
    color: var(--hb-accent-blue-strong);
}

/* Related posts */
.hb-post-related {
    background: #F2F2F0;
    padding: 5rem 0;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.hb-post-related__header {
    margin-bottom: 2.5rem;
}

.hb-post-related__title {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: 2rem;
    color: #0B0B12;
    margin: 0;
    letter-spacing: -0.01em;
}

.hb-post-related__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Override card colors inside related section (light bg) */
.hb-post-related .hb-card {
    background: white;
    border-color: rgba(0, 0, 0, 0.08);
}

.hb-post-related .hb-card__title {
    color: #0B0B12;
}

.hb-post-related .hb-card__excerpt,
.hb-post-related .hb-card__meta {
    color: #44444A;
}

/* ---------- Search form ---------- */
.hb-search-form {
    display: flex;
    gap: 0.5rem;
    max-width: 480px;
    margin-top: 1.5rem;
}

.hb-search-form input[type="search"] {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--hb-border-strong);
    border-radius: 0.5rem;
    background: var(--hb-surface-1);
    color: var(--hb-text-strong);
    font-size: 1rem;
}

.hb-search-form input[type="search"]:focus {
    outline: 2px solid var(--hb-accent-blue);
    outline-offset: 2px;
}

/* ---------- Breadcrumbs ---------- */
.hb-breadcrumb__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    list-style: none;
    margin: 0 0 1.5rem;
    padding: 0;
    font-size: 0.85rem;
    color: var(--hb-text-muted);
}

.hb-breadcrumb__list a {
    color: var(--hb-text-muted);
    text-decoration: none;
}

.hb-breadcrumb__list a:hover {
    color: var(--hb-accent-blue-soft);
}

.hb-breadcrumb__list [aria-current="page"] {
    color: var(--hb-text);
}

.hb-breadcrumb__sep {
    color: var(--hb-text-faint);
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .hb-blog-hero {
        padding: 4rem 0 2rem;
    }
    .hb-post__hero {
        padding: 4rem 0 0;
    }
    .hb-post__body {
        padding: 3rem 0 4rem;
    }
    .hb-blog-grid {
        grid-template-columns: 1fr;
    }
    .hb-post-related__grid {
        grid-template-columns: 1fr;
    }
}