/* ==========================================================================
   Gopang IT Solution — Blog & Insights
   Hub listing + long-form article layout. Uses the premium design tokens.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Shared hero
   -------------------------------------------------------------------------- */
.gis-blog-hero {
    padding: 92px 0 56px;
    background: var(--gis-bg-subtle);
    border-bottom: 1px solid var(--gis-border);
}

.gis-blog-hero .gis-eyebrow {
    display: inline-block;
    color: var(--gis-accent);
    font-weight: 700;
    font-size: .78rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.gis-blog-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
    margin-bottom: 18px;
    max-width: 20ch;
}

.gis-blog-hero p {
    font-size: 1.075rem;
    max-width: 68ch;
    margin-bottom: 0;
}

.gis-crumbs {
    font-size: .85rem;
    color: var(--gis-muted);
    margin-bottom: 20px;
}

.gis-crumbs a {
    color: var(--gis-muted);
}

.gis-crumbs a:hover {
    color: var(--gis-accent);
}

.gis-crumbs i {
    font-size: .6rem;
    margin: 0 8px;
    position: relative;
    top: -1px;
}

.gis-crumbs span {
    color: var(--gis-ink);
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   Hub: filter chips
   -------------------------------------------------------------------------- */
.gis-blog-body {
    padding: 64px 0 88px;
}

.gis-blog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 36px;
}

.gis-blog-filter {
    border: 1px solid var(--gis-border-strong);
    background: #fff;
    color: var(--gis-text);
    border-radius: 999px;
    padding: 8px 18px;
    font-size: .875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .18s ease;
}

.gis-blog-filter:hover {
    border-color: var(--gis-accent);
    color: var(--gis-accent);
}

.gis-blog-filter.is-active {
    background: var(--gis-accent);
    border-color: var(--gis-accent);
    color: #fff;
}

/* --------------------------------------------------------------------------
   Hub: article cards
   -------------------------------------------------------------------------- */
.gis-blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

.gis-post-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--gis-border);
    border-radius: var(--gis-r);
    overflow: hidden;
    transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}

.gis-post-card:hover {
    box-shadow: var(--gis-shadow);
    border-color: var(--gis-border-strong);
    transform: translateY(-3px);
}

.gis-post-card .thumb {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--gis-bg-subtle);
}

.gis-post-card .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .35s ease;
}

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

.gis-post-card .card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.gis-post-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    font-size: .78rem;
    color: var(--gis-muted);
    margin-bottom: 12px;
}

.gis-post-tag {
    display: inline-block;
    background: var(--gis-accent-soft);
    color: var(--gis-accent);
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    font-size: .68rem;
    padding: 4px 10px;
    border-radius: 999px;
}

.gis-post-card h2,
.gis-post-card h3 {
    font-size: 1.2rem;
    line-height: 1.35;
    margin-bottom: 10px;
}

.gis-post-card h2 a,
.gis-post-card h3 a {
    color: var(--gis-ink);
}

.gis-post-card h2 a:hover,
.gis-post-card h3 a:hover {
    color: var(--gis-accent);
}

.gis-post-card p {
    font-size: .94rem;
    margin-bottom: 18px;
}

.gis-post-card .read-link {
    margin-top: auto;
    color: var(--gis-accent);
    font-weight: 700;
    font-size: .9rem;
}

.gis-post-card .read-link i {
    font-size: .75rem;
    margin-left: 6px;
    transition: transform .18s ease;
    display: inline-block;
}

.gis-post-card .read-link:hover i {
    transform: translateX(4px);
}

.gis-blog-empty {
    padding: 48px 0;
    text-align: center;
    color: var(--gis-muted);
}

/* --------------------------------------------------------------------------
   Article layout
   -------------------------------------------------------------------------- */
.gis-article-wrap {
    padding: 56px 0 88px;
}

.gis-article {
    max-width: 760px;
}

.gis-article-figure {
    margin: 0 0 36px;
    border-radius: var(--gis-r);
    overflow: hidden;
    border: 1px solid var(--gis-border);
}

.gis-article-figure img {
    width: 100%;
    display: block;
}

.gis-article-figure figcaption {
    font-size: .8rem;
    color: var(--gis-muted);
    padding: 10px 14px;
    background: var(--gis-bg-subtle);
    border-top: 1px solid var(--gis-border);
}

.gis-byline {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    border-top: 1px solid var(--gis-border);
    border-bottom: 1px solid var(--gis-border);
    margin-bottom: 36px;
    font-size: .88rem;
    color: var(--gis-muted);
}

.gis-byline .avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--gis-accent-soft);
    color: var(--gis-accent);
    display: grid;
    place-items: center;
    font-weight: 800;
    flex: 0 0 auto;
}

.gis-byline strong {
    color: var(--gis-ink);
    display: block;
    font-size: .95rem;
}

/* Table of contents */
.gis-toc {
    background: var(--gis-bg-subtle);
    border: 1px solid var(--gis-border);
    border-radius: var(--gis-r);
    padding: 22px 26px;
    margin-bottom: 40px;
}

.gis-toc h2 {
    font-size: .78rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--gis-muted);
    margin-bottom: 14px;
}

.gis-toc ol {
    margin: 0;
    padding-left: 20px;
}

.gis-toc li {
    margin-bottom: 7px;
    font-size: .94rem;
}

.gis-toc a {
    color: var(--gis-text);
}

.gis-toc a:hover {
    color: var(--gis-accent);
}

/* Prose */
.gis-prose h2 {
    font-size: 1.6rem;
    margin: 48px 0 16px;
    scroll-margin-top: 100px;
}

.gis-prose h3 {
    font-size: 1.2rem;
    margin: 32px 0 12px;
    scroll-margin-top: 100px;
}

.gis-prose p {
    font-size: 1.04rem;
    line-height: 1.78;
    margin-bottom: 20px;
}

.gis-prose > p:first-of-type {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--gis-ink);
}

.gis-prose ul,
.gis-prose ol {
    margin: 0 0 22px;
    padding-left: 22px;
}

.gis-prose li {
    font-size: 1.02rem;
    line-height: 1.75;
    margin-bottom: 9px;
}

.gis-prose strong {
    color: var(--gis-ink);
    font-weight: 700;
}

.gis-prose a {
    color: var(--gis-accent);
    font-weight: 600;
    border-bottom: 1px solid rgba(15, 98, 254, .28);
}

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

.gis-prose blockquote {
    margin: 32px 0;
    padding: 20px 26px;
    border-left: 3px solid var(--gis-accent);
    background: var(--gis-accent-soft);
    border-radius: 0 var(--gis-r-sm) var(--gis-r-sm) 0;
}

.gis-prose blockquote p {
    margin-bottom: 0;
    color: var(--gis-ink);
    font-weight: 500;
}

.gis-prose figure {
    margin: 32px 0;
}

.gis-prose figure img {
    width: 100%;
    border-radius: var(--gis-r);
    border: 1px solid var(--gis-border);
    display: block;
}

.gis-prose figcaption {
    font-size: .82rem;
    color: var(--gis-muted);
    margin-top: 8px;
}

/* Tables inside prose */
.gis-table-scroll {
    overflow-x: auto;
    margin: 0 0 28px;
    border: 1px solid var(--gis-border);
    border-radius: var(--gis-r);
}

.gis-prose table {
    width: 100%;
    border-collapse: collapse;
    min-width: 540px;
    font-size: .94rem;
}

.gis-prose thead th {
    background: var(--gis-bg-subtle);
    color: var(--gis-ink);
    text-align: left;
    font-weight: 700;
    padding: 13px 16px;
    border-bottom: 1px solid var(--gis-border);
    white-space: nowrap;
}

.gis-prose tbody td {
    padding: 13px 16px;
    border-bottom: 1px solid var(--gis-border);
    vertical-align: top;
}

.gis-prose tbody tr:last-child td {
    border-bottom: 0;
}

/* Callout box */
.gis-callout {
    display: flex;
    gap: 16px;
    padding: 20px 22px;
    border: 1px solid var(--gis-border);
    border-left: 3px solid var(--gis-accent);
    border-radius: 0 var(--gis-r-sm) var(--gis-r-sm) 0;
    background: #fff;
    box-shadow: var(--gis-shadow-sm);
    margin: 32px 0;
}

.gis-callout i {
    color: var(--gis-accent);
    font-size: 1.15rem;
    margin-top: 3px;
}

.gis-callout p:last-child {
    margin-bottom: 0;
}

.gis-callout h3 {
    margin: 0 0 8px;
    font-size: 1.02rem;
}

/* Key-takeaways box */
.gis-takeaways {
    border: 1px solid var(--gis-border);
    border-radius: var(--gis-r);
    padding: 26px 28px;
    background: var(--gis-bg-subtle);
    margin: 0 0 40px;
}

.gis-takeaways h2 {
    font-size: 1.05rem;
    margin: 0 0 14px;
}

.gis-takeaways ul {
    margin: 0;
    padding-left: 20px;
}

.gis-takeaways li {
    font-size: .98rem;
    margin-bottom: 8px;
}

/* Article footer bits */
.gis-article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 44px 0 32px;
}

.gis-article-tags span {
    font-size: .8rem;
    color: var(--gis-text);
    border: 1px solid var(--gis-border-strong);
    border-radius: 999px;
    padding: 5px 14px;
}

.gis-author-box {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 26px;
    border: 1px solid var(--gis-border);
    border-radius: var(--gis-r);
    background: #fff;
    box-shadow: var(--gis-shadow-sm);
    margin-bottom: 44px;
}

.gis-author-box .avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gis-accent-soft);
    color: var(--gis-accent);
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 1.1rem;
    flex: 0 0 auto;
}

.gis-author-box h3 {
    font-size: 1.02rem;
    margin-bottom: 6px;
}

.gis-author-box p {
    font-size: .92rem;
    margin-bottom: 0;
}

/* Related posts */
.gis-related {
    border-top: 1px solid var(--gis-border);
    padding-top: 40px;
}

.gis-related h2 {
    font-size: 1.3rem;
    margin-bottom: 24px;
}

.gis-related-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.gis-related-item {
    display: block;
    border: 1px solid var(--gis-border);
    border-radius: var(--gis-r-sm);
    padding: 18px 20px;
    transition: border-color .18s ease, box-shadow .18s ease;
}

.gis-related-item:hover {
    border-color: var(--gis-accent);
    box-shadow: var(--gis-shadow-sm);
}

.gis-related-item small {
    display: block;
    color: var(--gis-muted);
    font-size: .74rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    font-weight: 700;
    margin-bottom: 7px;
}

.gis-related-item strong {
    color: var(--gis-ink);
    font-size: .98rem;
    line-height: 1.4;
    font-weight: 600;
    display: block;
}

/* Sidebar */
.gis-article-aside {
    position: sticky;
    top: 24px;
}

.gis-aside-card {
    border: 1px solid var(--gis-border);
    border-radius: var(--gis-r);
    padding: 24px;
    margin-bottom: 24px;
    background: #fff;
}

.gis-aside-card h2 {
    font-size: 1rem;
    margin-bottom: 14px;
}

.gis-aside-card ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.gis-aside-card li {
    padding: 9px 0;
    border-bottom: 1px dashed var(--gis-border);
    font-size: .92rem;
}

.gis-aside-card li:last-child {
    border-bottom: 0;
}

.gis-aside-card a {
    color: var(--gis-text);
}

.gis-aside-card a:hover {
    color: var(--gis-accent);
}

.gis-aside-cta {
    background: var(--gis-dark);
    border-radius: var(--gis-r);
    padding: 26px 24px;
    color: #fff;
}

.gis-aside-cta h2 {
    color: #fff;
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.gis-aside-cta p {
    color: rgba(255, 255, 255, .74);
    font-size: .92rem;
    margin-bottom: 18px;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 991px) {
    .gis-blog-hero {
        padding: 64px 0 44px;
    }

    .gis-article-aside {
        position: static;
        margin-top: 48px;
    }
}

@media (max-width: 575px) {
    .gis-blog-grid {
        grid-template-columns: 1fr;
    }

    .gis-prose h2 {
        font-size: 1.35rem;
    }

    .gis-toc,
    .gis-takeaways,
    .gis-author-box {
        padding: 20px;
    }

    .gis-author-box {
        flex-direction: column;
    }
}