/* GoChatterBot Resources: /resources/, articles (single.php) and the home teaser. */

/* ── Library hero ─────────────────────────────────────── */
.gcbt-res-hero { position: relative; overflow: hidden; padding: 44px 0 56px; background: radial-gradient(900px 420px at 90% -20%, rgba(139,92,246,.2), transparent 60%), linear-gradient(180deg, var(--gcbt-primary-light), #fff); }
.gcbt-res-hero-orb { position: absolute; width: 420px; height: 420px; left: -160px; bottom: -220px; border-radius: 50%; background: radial-gradient(circle, rgba(14,165,233,.14), transparent 70%); }
.gcbt-res-hero .gcbt-container { position: relative; }
.gcbt-res-hero .gcbt-breadcrumbs, .gcbt-post-hero .gcbt-breadcrumbs { margin: 0 0 22px; }
.gcbt-res-hero .gcbt-breadcrumbs a, .gcbt-res-hero .gcbt-breadcrumb-sep, .gcbt-post-hero .gcbt-breadcrumbs a, .gcbt-post-hero .gcbt-breadcrumb-sep { color: var(--gcbt-text-light); }
.gcbt-res-hero .gcbt-breadcrumbs a:hover, .gcbt-post-hero .gcbt-breadcrumbs a:hover { color: var(--gcbt-primary); }
.gcbt-res-hero .gcbt-breadcrumb-current { color: var(--gcbt-text); }
.gcbt-res-kicker { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; background: rgba(79,70,229,.1); color: var(--gcbt-primary); font-size: 13px; font-weight: 700; letter-spacing: .02em; }
.gcbt-res-title { font-size: 46px; line-height: 1.12; letter-spacing: -.02em; margin: 16px 0 14px; max-width: 820px; }
.gcbt-res-lead { font-size: 18.5px; line-height: 1.7; color: var(--gcbt-text-light); max-width: 700px; margin: 0; }

/* ── Library body ─────────────────────────────────────── */
.gcbt-res-body { padding: 8px 0 80px; }
.gcbt-res-topics { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 22px 0 30px; border-bottom: 1px solid var(--gcbt-border); margin-bottom: 36px; }
.gcbt-res-topics-label { font-size: 12.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--gcbt-text-muted); margin-right: 6px; }
.gcbt-res-chip { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: #fff; border: 1px solid var(--gcbt-border); color: var(--gcbt-text); font-weight: 600; font-size: 14.5px; transition: border-color .2s, color .2s, background .2s; }
.gcbt-res-chip span { min-width: 22px; height: 22px; padding: 0 6px; border-radius: 999px; display: inline-grid; place-items: center; background: var(--gcbt-bg-alt); color: var(--gcbt-text-light); font-size: 12px; }
.gcbt-res-chip:hover { border-color: var(--gcbt-primary); color: var(--gcbt-primary); }
.gcbt-res-chip.is-on { background: var(--gcbt-primary); border-color: var(--gcbt-primary); color: #fff; }
.gcbt-res-chip.is-on span { background: rgba(255,255,255,.2); color: #fff; }

/* Lead "Start here" post */
.gcbt-res-lead-post a { display: grid; grid-template-columns: 1.15fr 1fr; gap: 0; border-radius: 24px; overflow: hidden; background: #fff; border: 1px solid var(--gcbt-border); color: var(--gcbt-text); box-shadow: 0 30px 70px -40px rgba(79,70,229,.5); transition: transform .3s, box-shadow .3s, border-color .3s; }
.gcbt-res-lead-post a:hover { transform: translateY(-3px); border-color: #c7d2fe; box-shadow: 0 40px 80px -40px rgba(79,70,229,.6); color: var(--gcbt-text); }
.gcbt-res-lead-img { position: relative; display: block; min-height: 100%; background: var(--gcbt-primary-light); }
.gcbt-res-lead-img img { display: block; width: 100%; height: 100%; object-fit: cover; aspect-ratio: 1200 / 630; }
.gcbt-res-flag { position: absolute; top: 18px; left: 18px; padding: 7px 14px; border-radius: 999px; background: #fff; color: var(--gcbt-primary); font-size: 12.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; box-shadow: 0 8px 20px -8px rgba(15,23,42,.35); }
.gcbt-res-lead-body { display: flex; flex-direction: column; justify-content: center; gap: 12px; padding: 36px 38px; }
.gcbt-res-lead-body h2 { font-size: 30px; line-height: 1.22; margin: 0; letter-spacing: -.01em; }
.gcbt-res-lead-body .gcbt-res-excerpt { font-size: 16.5px; }
.gcbt-res-lead-cta { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; color: var(--gcbt-primary); font-weight: 700; }
.gcbt-res-lead-post a:hover .gcbt-res-lead-cta svg { transform: translateX(4px); }
.gcbt-res-lead-cta svg { transition: transform .2s; }

.gcbt-res-card-topic { display: inline-block; align-self: flex-start; padding: 4px 10px; border-radius: 8px; background: var(--gcbt-primary-light); color: var(--gcbt-primary); font-size: 12.5px; font-weight: 700; }
.gcbt-res-excerpt { display: block; color: var(--gcbt-text-light); line-height: 1.6; font-size: 15px; }
.gcbt-res-meta { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 4px 0; font-size: 13.5px; color: var(--gcbt-text-muted); }
.gcbt-res-meta .gcbt-res-topic { color: var(--gcbt-primary); font-weight: 600; }
.gcbt-res-dot { margin: 0 8px; }

/* List */
.gcbt-res-list-title { font-size: 24px; margin: 56px 0 16px; }
.gcbt-res-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--gcbt-border); }
.gcbt-res-row a { display: grid; grid-template-columns: 220px minmax(0, 1fr) 44px; gap: 24px; align-items: center; padding: 22px 8px; border-bottom: 1px solid var(--gcbt-border); color: var(--gcbt-text); border-radius: 14px; transition: background .2s; }
.gcbt-res-row a:hover { background: var(--gcbt-bg-alt); color: var(--gcbt-text); }
.gcbt-res-thumb { display: block; border-radius: 12px; overflow: hidden; background: var(--gcbt-primary-light); aspect-ratio: 1200 / 630; }
.gcbt-res-thumb img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.gcbt-res-row a:hover .gcbt-res-thumb img { transform: scale(1.04); }
.gcbt-res-row-body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.gcbt-res-row-title { font-size: 19px; line-height: 1.35; }
.gcbt-res-row a:hover .gcbt-res-row-title { color: var(--gcbt-primary); }
.gcbt-res-arrow { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--gcbt-border); color: var(--gcbt-primary); transition: background .2s, color .2s, transform .2s; }
.gcbt-res-row a:hover .gcbt-res-arrow { background: var(--gcbt-primary); color: #fff; transform: translateX(3px); }
.gcbt-res-cover-fallback { display: grid; place-items: center; width: 100%; height: 100%; min-height: 110px; color: var(--gcbt-primary); background: linear-gradient(135deg, var(--gcbt-primary-light), #f5f3ff); }
.gcbt-res-pager { display: flex; gap: 8px; justify-content: center; margin-top: 32px; }
.gcbt-res-pager .page-numbers { padding: 8px 14px; border-radius: 10px; border: 1px solid var(--gcbt-border); color: var(--gcbt-text); font-weight: 600; }
.gcbt-res-pager .current { background: var(--gcbt-primary); border-color: var(--gcbt-primary); color: #fff; }
.gcbt-res-empty { color: var(--gcbt-text-light); }
.gcbt-res-aside { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 44px; padding: 18px 22px; border-radius: 16px; background: var(--gcbt-bg-alt); border: 1px solid var(--gcbt-border); color: var(--gcbt-text-light); }
.gcbt-res-aside strong { color: var(--gcbt-text); }

/* Cards (teaser, related) */
.gcbt-res-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.gcbt-res-card a { display: flex; flex-direction: column; height: 100%; background: #fff; border: 1px solid var(--gcbt-border); border-radius: 18px; overflow: hidden; color: var(--gcbt-text); transition: transform .3s, box-shadow .3s, border-color .3s; }
.gcbt-res-card a:hover { transform: translateY(-4px); border-color: #c7d2fe; box-shadow: 0 30px 60px -34px rgba(79,70,229,.5); color: var(--gcbt-text); }
.gcbt-res-card-img { display: block; aspect-ratio: 1200 / 630; background: var(--gcbt-primary-light); overflow: hidden; }
.gcbt-res-card-img img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.gcbt-res-card a:hover .gcbt-res-card-img img { transform: scale(1.04); }
.gcbt-res-card-body { display: flex; flex-direction: column; gap: 10px; padding: 20px 22px 22px; flex: 1; }
.gcbt-res-card-title { font-size: 18.5px; line-height: 1.35; margin: 0; }
.gcbt-res-card .gcbt-res-meta { margin-top: auto; }

/* Home teaser */
.gcbt-res-teaser { background: var(--gcbt-bg-alt) !important; }
.gcbt-res-teaser-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: 34px; }
.gcbt-res-teaser-head .gcbt-section-title { margin: 0 0 10px; }
.gcbt-res-teaser-head .gcbt-section-subtitle { max-width: 620px; }

/* ── Article ──────────────────────────────────────────── */
.gcbt-post-hero { padding: 40px 0 0; background: linear-gradient(180deg, var(--gcbt-primary-light), #fff 70%); }
.gcbt-container.gcbt-post-hero-inner { max-width: 820px; }
.gcbt-post-topic { font-size: 13px; }
.gcbt-post-title { font-size: 44px; line-height: 1.15; letter-spacing: -.02em; margin: 14px 0 14px; }
.gcbt-post-dek { font-size: 19.5px; line-height: 1.6; color: var(--gcbt-text-light); margin: 0 0 18px; }
.gcbt-post-byline { display: flex; flex-wrap: wrap; align-items: center; margin: 0; font-size: 14px; color: var(--gcbt-text-muted); }
.gcbt-post-cover { max-width: 1040px; margin: 34px auto 0; border-radius: 22px; overflow: hidden; box-shadow: 0 40px 80px -48px rgba(79,70,229,.6); }
.gcbt-post-cover img { display: block; width: 100%; height: auto; }
.gcbt-container.gcbt-post-layout { max-width: 820px; padding-top: 44px; padding-bottom: 64px; }
.gcbt-post-toc { margin: 0 0 36px; padding: 20px 24px; border-radius: 16px; background: var(--gcbt-bg-alt); border: 1px solid var(--gcbt-border); }
.gcbt-post-toc p { margin: 0 0 10px; font-size: 12.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--gcbt-primary); }
.gcbt-post-toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 32px; }
.gcbt-post-toc li { break-inside: avoid; margin: 0 0 6px; font-size: 15px; line-height: 1.45; }
.gcbt-post-toc a { color: var(--gcbt-text); }
.gcbt-post-toc a:hover { color: var(--gcbt-primary); }
.gcbt-post-content { font-size: 18px; line-height: 1.8; color: #334155; }
.gcbt-post-content > * { max-width: 72ch; }
.gcbt-post-content h2 { font-size: 28px; line-height: 1.3; color: var(--gcbt-text); margin: 48px 0 16px; letter-spacing: -.01em; scroll-margin-top: 100px; }
.gcbt-post-content h3 { font-size: 21px; color: var(--gcbt-text); margin: 32px 0 10px; }
.gcbt-post-content p { margin: 0 0 20px; }
.gcbt-post-content ul, .gcbt-post-content ol { margin: 0 0 22px; padding-left: 24px; }
.gcbt-post-content li { margin-bottom: 8px; }
.gcbt-post-content li::marker { color: var(--gcbt-primary); font-weight: 700; }
.gcbt-post-content a { color: var(--gcbt-primary); text-decoration: underline; text-decoration-color: rgba(79,70,229,.35); text-underline-offset: 3px; }
.gcbt-post-content a:hover { text-decoration-color: var(--gcbt-primary); }
.gcbt-post-content strong { color: var(--gcbt-text); }
.gcbt-post-content code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .86em; background: var(--gcbt-bg-alt); border: 1px solid var(--gcbt-border); border-radius: 6px; padding: 1px 6px; color: #4338ca; }
.gcbt-post-content blockquote { margin: 28px 0; padding: 18px 22px; border-left: 4px solid var(--gcbt-primary); background: var(--gcbt-primary-light); border-radius: 0 14px 14px 0; color: #312e81; }
.gcbt-post-content blockquote p:last-child { margin: 0; }
.gcbt-post-content .gcbt-key { margin: 28px 0; padding: 20px 24px; border-radius: 16px; background: #fff; border: 1px solid #c7d2fe; box-shadow: 0 16px 40px -30px rgba(79,70,229,.6); }
.gcbt-post-content .gcbt-key p:first-child { margin-top: 0; font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--gcbt-primary); }
.gcbt-post-content .gcbt-key ul { margin-bottom: 0; }
.gcbt-post-content table { width: 100%; border-collapse: separate; border-spacing: 0; border: 1px solid var(--gcbt-border); border-radius: 12px; overflow: hidden; margin: 0 0 24px; font-size: 16px; }
.gcbt-post-content th, .gcbt-post-content td { padding: 12px 14px; text-align: left; border-top: 1px solid #f1f5f9; vertical-align: top; }
.gcbt-post-content thead th { background: var(--gcbt-bg-alt); border-top: 0; }
.gcbt-post-cta { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: start; margin: 48px 0 28px; padding: 26px 28px; border-radius: 20px; background: linear-gradient(135deg, #1e1b4b, var(--gcbt-primary) 75%, var(--gcbt-accent)); color: #fff; }
.gcbt-post-cta-icon { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; background: rgba(255,255,255,.14); }
.gcbt-post-cta strong { font-size: 20px; display: block; margin-bottom: 6px; }
.gcbt-post-cta p { margin: 0; color: rgba(255,255,255,.85); line-height: 1.6; }
.gcbt-post-cta-actions { grid-column: 2; display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
.gcbt-post-cta .gcbt-btn-primary { background: #fff; color: var(--gcbt-primary); border-color: #fff; }
.gcbt-post-cta .gcbt-btn-ghost { color: #fff; border-color: rgba(255,255,255,.5); }
.gcbt-post-cta .gcbt-btn-ghost:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }
.gcbt-post-back { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 18px; border-top: 1px solid var(--gcbt-border); font-weight: 600; }
.gcbt-post-related { background: var(--gcbt-bg-alt) !important; }
.gcbt-post-related .gcbt-section-title { font-size: 28px; margin-bottom: 26px; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 1024px) {
    .gcbt-res-lead-post a { grid-template-columns: 1fr; }
    .gcbt-res-cards { grid-template-columns: repeat(2, 1fr); }
    .gcbt-res-cards > :nth-child(3) { display: none; }
}
@media (max-width: 768px) {
    .gcbt-res-title, .gcbt-post-title { font-size: 32px; }
    .gcbt-res-lead, .gcbt-post-dek { font-size: 17px; }
    .gcbt-res-lead-body { padding: 24px 22px 26px; }
    .gcbt-res-lead-body h2 { font-size: 24px; }
    .gcbt-res-row a { grid-template-columns: 112px minmax(0, 1fr); gap: 14px; padding: 16px 4px; align-items: start; }
    .gcbt-res-arrow { display: none; }
    .gcbt-res-row-title { font-size: 16.5px; }
    .gcbt-res-row .gcbt-res-excerpt { display: none; }
    .gcbt-res-cards { grid-template-columns: 1fr; }
    .gcbt-res-cards > :nth-child(3) { display: block; }
    .gcbt-post-content { font-size: 17px; }
    .gcbt-post-content h2 { font-size: 24px; }
    .gcbt-post-toc ol { columns: 1; }
    .gcbt-post-cover { border-radius: 16px; margin-top: 24px; }
    .gcbt-post-cta { grid-template-columns: 1fr; padding: 22px; }
    .gcbt-post-cta-actions { grid-column: 1; }
    .gcbt-post-content table { display: block; overflow-x: auto; }
}
@media (max-width: 768px) {
    .gcbt-res-row .gcbt-res-meta { gap: 2px 12px; }
    .gcbt-res-row .gcbt-res-dot { display: none; }
}