/* Production blog layout. Colour and type come from the shared Gemini core theme. */

.blog-body { margin: 0; color: var(--text); }
.blog-hero, .article-hero { border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 88%, transparent); }
.blog-wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.blog-hero .blog-wrap { padding: 48px 0 42px; }
.blog-hero.is-filtered .blog-wrap { padding: 32px 0 28px; }
.blog-crumbs { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: .82rem; }
.blog-crumbs a { color: var(--accent-strong); }
.blog-kicker { margin: 22px 0 0; color: var(--accent-strong); font-size: .72rem; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; }
.blog-hero h1, .article-hero h1 { margin: 12px 0 0; max-width: 18ch; font-size: clamp(2.1rem, 4.6vw, 3.6rem); line-height: 1.08; letter-spacing: -.04em; font-weight: 650; }
.blog-lead, .article-lead { margin: 16px 0 0; max-width: 42rem; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }
.blog-search { position: relative; margin-top: 26px; max-width: 36rem; }
.blog-search input { width: 100%; min-height: 48px; padding: 0 16px 0 44px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--text); }
.blog-search::before { content: ""; position: absolute; left: 16px; top: 50%; width: 16px; height: 16px; transform: translateY(-50%); border: 2px solid var(--muted); border-radius: 50%; pointer-events: none; }
.blog-main { padding: 36px 0 80px; }
.blog-chips { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 8px; }
.blog-chip { display: inline-flex; align-items: center; min-height: 40px; padding: 0 14px; border-radius: 999px; background: var(--surface); color: var(--muted); box-shadow: 0 0 0 1px var(--line); white-space: nowrap; font-size: .88rem; }
.blog-chip:hover { color: var(--text); }
.blog-chip.is-active { background: var(--accent); color: #fff; box-shadow: none; }
html[data-theme="dark"] .blog-chip.is-active { color: #071020; }

.blog-featured { display: grid; overflow: hidden; margin-top: 28px; border-radius: 28px; background: var(--surface); box-shadow: var(--shadow); }
@media (min-width: 900px) { .blog-featured { grid-template-columns: 1.05fr .95fr; } }

/* Image-free article covers use tiny inline SVGs and deterministic colour compositions. */
.blog-cover {
  --cover-a: #0b57d0;
  --cover-b: #7139d4;
  --cover-c: #64d8ff;
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  min-width: 0;
  padding: clamp(22px, 4vw, 42px);
  background: linear-gradient(145deg, var(--cover-a), var(--cover-b));
  box-shadow: inset 0 -190px 135px -55px rgba(0,0,0,.72), inset 0 0 72px rgba(0,0,0,.3);
  color: #fff;
  text-decoration: none;
}
.blog-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .22;
  background-image: linear-gradient(rgba(255,255,255,.24) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.24) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom right, #000, transparent 78%);
}
.blog-cover::after {
  content: "";
  position: absolute;
  width: 55%;
  aspect-ratio: 1;
  right: -18%;
  top: -34%;
  z-index: -1;
  border-radius: 50%;
  background: color-mix(in srgb, var(--cover-c) 72%, transparent);
  filter: blur(34px);
  opacity: .55;
}
.blog-cover[data-art="1"] { --cover-a: #006874; --cover-b: #2556b9; --cover-c: #8ef4ed; }
.blog-cover[data-art="2"] { --cover-a: #4d2ea6; --cover-b: #a53478; --cover-c: #ffb2e0; }
.blog-cover[data-art="3"] { --cover-a: #075e54; --cover-b: #2257aa; --cover-c: #76f3c9; }
.blog-cover[data-art="4"] { --cover-a: #203083; --cover-b: #6b3db9; --cover-c: #a9c7ff; }
.blog-cover[data-art="5"] { --cover-a: #9a3f32; --cover-b: #6332a5; --cover-c: #ffc17d; }
.blog-cover-art { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; opacity: .38; transition: transform .55s cubic-bezier(.2,.8,.2,1), opacity .3s ease; }
.blog-cover-art .cover-shape { display: none; fill: none; stroke: rgba(255,255,255,.78); stroke-width: 5; vector-effect: non-scaling-stroke; }
.blog-cover-art circle { fill: var(--cover-c); stroke-width: 3; }
.blog-cover[data-art="0"] .cover-shape-0, .blog-cover[data-art="1"] .cover-shape-1, .blog-cover[data-art="2"] .cover-shape-2,
.blog-cover[data-art="3"] .cover-shape-3, .blog-cover[data-art="4"] .cover-shape-4, .blog-cover[data-art="5"] .cover-shape-5 { display: block; }
.blog-cover:hover .blog-cover-art { transform: scale(1.035) translate3d(5px,-3px,0); opacity: .5; }
.blog-cover-category, .blog-cover strong, .blog-cover-signature { position: relative; z-index: 1; }
.blog-cover-category { margin-bottom: 10px; color: rgba(255,255,255,.76); font-size: .68rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.blog-cover strong { max-width: 18ch; color: #fff; font-size: clamp(1.25rem, 2.3vw, 2rem); line-height: 1.08; letter-spacing: -.035em; text-wrap: balance; text-shadow: 0 2px 20px rgba(0,0,0,.18); }
.blog-cover-signature { display: flex; align-items: center; gap: 8px; margin-top: 18px; color: rgba(255,255,255,.65); font-size: .62rem; font-weight: 800; letter-spacing: .16em; }
.blog-cover-signature i { width: 22px; height: 1px; background: currentColor; }
.blog-cover--featured { min-height: 300px; }
.blog-cover--card { aspect-ratio: 16 / 9; padding: 20px; }
.blog-cover--card { box-shadow: inset 0 -145px 105px -42px rgba(0,0,0,.78), inset 0 0 55px rgba(0,0,0,.34); }
.blog-cover--card strong { max-width: 20ch; font-size: clamp(1rem, 1.6vw, 1.35rem); }
.blog-cover--card .blog-cover-category { font-size: .58rem; }
.blog-cover--card .blog-cover-signature { margin-top: 12px; }
.blog-featured-copy { display: flex; flex-direction: column; justify-content: center; padding: 28px; }
.blog-featured-copy h2 { margin: 8px 0 0; font-size: clamp(1.4rem, 2.4vw, 2rem); line-height: 1.2; letter-spacing: -.03em; }
.blog-featured-copy p { margin: 12px 0 0; color: var(--muted); line-height: 1.65; }
.blog-meta { margin-top: 14px; color: var(--muted); font-size: .82rem; }
.blog-read { margin-top: 18px; color: var(--accent-strong); font-weight: 700; }

.blog-layout { display: grid; gap: 36px; margin-top: 42px; }
@media (min-width: 980px) { .blog-layout { grid-template-columns: minmax(0, 1fr) 280px; } }
.blog-grid { display: grid; gap: 22px; }
@media (min-width: 720px) { .blog-grid { grid-template-columns: 1fr 1fr; } }
.blog-card { display: flex; flex-direction: column; overflow: hidden; min-height: 100%; border-radius: 24px; background: var(--surface); box-shadow: var(--shadow); transition: transform .22s ease, box-shadow .22s ease; }
.blog-card:hover { transform: translateY(-4px); }
.blog-card-copy { display: flex; flex: 1; flex-direction: column; padding: 20px; }
.blog-card h3 { margin: 8px 0 0; font-size: 1.15rem; line-height: 1.3; letter-spacing: -.02em; }
.blog-card p { margin: 10px 0 0; color: var(--muted); font-size: .92rem; line-height: 1.6; }
.blog-card-foot { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-top: auto; padding-top: 16px; color: var(--muted); font-size: .78rem; }
.blog-aside { display: grid; gap: 18px; align-content: start; }
.blog-panel { padding: 20px; border-radius: 20px; background: var(--surface); box-shadow: var(--shadow); }
.blog-panel > p:first-child { margin: 0; color: var(--muted); font-size: .72rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.blog-panel ul { margin: 12px 0 0; padding: 0; display: grid; gap: 10px; list-style: none; }
.blog-panel a { font-size: .92rem; font-weight: 650; }
.blog-panel a:hover { color: var(--accent-strong); }
.blog-cta { padding: 20px; border-radius: 20px; background: var(--accent-soft); }
.blog-cta p { margin: 8px 0 0; font-size: .92rem; line-height: 1.6; }
.blog-cta a, .blog-newsletter button, .article-cta a {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px; margin-top: 14px; padding: 0 16px; border: 0; border-radius: 10px; background: linear-gradient(135deg, #0b57d0, #1a73e8); color: #fff; font-weight: 700;
}
html[data-theme="dark"] .blog-cta a, html[data-theme="dark"] .blog-newsletter button, html[data-theme="dark"] .article-cta a {
  background: linear-gradient(135deg, #8ab4f8, #a98cff); color: #071020;
}
.blog-newsletter input { width: 100%; min-height: 44px; margin-top: 12px; padding: 0 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--text); }
.blog-ok { display: none; margin-top: 8px; color: #167b51; font-size: .78rem; }
.blog-ok.is-shown { display: block; }
.blog-pages { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.blog-pages a, .blog-pages span {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 10px; background: var(--surface); box-shadow: 0 0 0 1px var(--line); font-weight: 700;
}
.blog-pages .is-active { background: var(--accent); color: #fff; box-shadow: none; }
.blog-count { margin-top: 12px; color: var(--muted); font-size: .78rem; }
.blog-empty { margin: 24px 0; color: var(--muted); }

.article-hero .blog-wrap { padding: 42px 0 36px; max-width: 760px; margin: 0 auto; }
.article-hero h1 { max-width: none; }
.article-figure { width: min(980px, calc(100% - 40px)); margin: 0 auto; overflow: hidden; border-radius: 0 0 24px 24px; }
.blog-cover--article { min-height: clamp(300px, 48vw, 500px); }
.blog-cover--article strong { max-width: 20ch; font-size: clamp(1.7rem, 4.5vw, 3.4rem); }
.article-layout { display: grid; gap: 36px; width: min(1040px, calc(100% - 40px)); margin: 36px auto 80px; }
@media (min-width: 980px) { .article-layout { grid-template-columns: minmax(0, 1fr) 240px; } }
.article-toc { position: sticky; top: 92px; padding: 18px; border-radius: 20px; background: color-mix(in srgb, var(--surface) 92%, transparent); box-shadow: var(--shadow); }
.article-toc p { margin: 0 0 10px; color: var(--muted); font-size: .72rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.article-toc ol { margin: 0; padding: 0; display: grid; gap: 8px; list-style: none; }
.article-toc a { color: var(--muted); font-size: .88rem; }
.article-toc a:hover { color: var(--accent-strong); }
.prose-article { font-size: 1.05rem; line-height: 1.75; }
.prose-article h2 { margin: 2.4rem 0 .8rem; font-size: 1.45rem; letter-spacing: -.02em; }
.prose-article h3 { margin: 1.6rem 0 .5rem; font-size: 1.12rem; }
.prose-article p, .prose-article ul, .prose-article ol, .prose-article table { margin: 0 0 1.05rem; }
.prose-article a { color: var(--accent-strong); text-decoration: underline; text-underline-offset: 3px; }
.prose-article ul, .prose-article ol { padding-left: 1.2rem; }
.prose-article li { margin: 0 0 .4rem; }
.prose-article table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.prose-article th, .prose-article td { padding: .65rem .75rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose-article th { color: var(--muted); font-size: .78rem; letter-spacing: .04em; text-transform: uppercase; }
.prose-article .table-wrap { overflow-x: auto; margin: 0 0 1.15rem; }
.prose-article caption, .table-caption { margin: 0 0 .4rem; color: var(--muted); font-size: .88rem; text-align: left; }
.article-inline-image { margin: 0 0 1.15rem; }
.article-inline-image img { display: block; width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); }
.article-inline-image figcaption { margin-top: .45rem; color: var(--muted); font-size: .88rem; }
.blog-admin-bar {
  position: sticky; top: 0; z-index: 40; display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  padding: 8px 18px; background: #0b57d0; color: #fff; font-size: .85rem; font-weight: 700;
}
.blog-admin-bar a, .blog-admin-bar button { color: #fff; text-decoration: none; padding: 4px 8px; border: 0; border-radius: 8px; background: #ffffff22; font: inherit; font-weight: 700; cursor: pointer; }
.blog-admin-bar a:hover, .blog-admin-bar button:hover { background: #ffffff33; }
.article-callout { margin: 1.2rem 0; padding: 14px 16px; border: 1px solid var(--line); border-radius: 16px; background: color-mix(in srgb, var(--surface) 90%, transparent); }
.article-callout.is-tip { border-color: color-mix(in srgb, #167b51 35%, var(--line)); }
.article-callout.is-warning { border-color: color-mix(in srgb, #b4233c 35%, var(--line)); }
.article-callout strong { display: block; margin-bottom: 4px; color: var(--muted); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.checklist { list-style: none; padding: 0; }
.checklist li { display: flex; gap: 10px; }
.checklist i { width: 8px; height: 8px; margin-top: 10px; flex: 0 0 auto; border-radius: 50%; background: var(--accent); }
.article-disclaimer { margin-top: 36px; padding: 14px 16px; border-radius: 16px; background: color-mix(in srgb, var(--surface-2) 90%, transparent); color: var(--muted); font-size: .92rem; line-height: 1.65; }
.article-cta { margin-top: 28px; padding: 24px; border-radius: 24px; background: var(--accent-soft); }
.article-cta h2 { margin: 0; font-size: 1.2rem; }
.related-grid { display: grid; gap: 18px; width: min(1040px, calc(100% - 40px)); margin: 0 auto 80px; }
.related-grid h2 { margin: 0 0 8px; grid-column: 1 / -1; font-size: 1.6rem; }
@media (min-width: 800px) { .related-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } .related-grid h2 { grid-column: 1 / -1; } }
.blog-footer { display: grid; gap: 22px; width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 36px 0 48px; border-top: 1px solid var(--line); color: var(--muted); }
@media (min-width: 800px) { .blog-footer { grid-template-columns: 1.2fr 1fr auto; align-items: start; } }
.blog-footer nav { display: flex; flex-wrap: wrap; gap: 10px 18px; }
.blog-footer small { font-size: .75rem; line-height: 1.5; }

@media (max-width: 640px) {
  .blog-wrap, .article-layout, .article-figure, .related-grid, .blog-footer { width: min(100% - 28px, 1120px); }
  .blog-featured-copy, .blog-card-copy { padding: 18px; }
}