/* Pure AI Systems: insights cards and single posts (15 Oct 2026).
   Builds on theme.css tokens: --navy, --accent, --blue, --grey, --line, --radius. */

/* ---------- insights cards with photo ---------- */
.card.post{display:flex;flex-direction:column;padding:0;overflow:hidden;cursor:pointer;position:relative}
.card.post:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(26,32,61,.12)}
.post-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--navy)}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.card.post:hover .post-media img{transform:scale(1.04)}
.post-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(26,32,61,.28));pointer-events:none}
.post-media--ph{display:flex;align-items:flex-end;padding:22px 24px;background:
  radial-gradient(circle at 82% 18%,rgba(219,0,114,.45),transparent 55%),
  radial-gradient(circle at 12% 90%,rgba(49,86,254,.55),transparent 55%),var(--navy)}
.post-media--ph span{position:relative;z-index:1;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.75)}
.post-body-card{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.post-body-card h3{margin-top:10px}
.post-body-card p{flex:1}
.post-meta-row{display:flex;gap:14px;margin-top:18px;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--grey)}
@media(prefers-reduced-motion:reduce){.post-media img{transition:none}.card.post:hover .post-media img{transform:none}}

/* ---------- single post ---------- */
.post-hero{padding:96px 0 84px}
.post-hero.has-img{padding-bottom:200px}
.post-hero .crumbs{font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--grey-dark);margin-bottom:26px;display:flex;gap:10px;flex-wrap:wrap}
.post-hero .crumbs a{color:var(--grey-dark)}
.post-hero .crumbs a:hover{color:#fff}
.post-hero h1{font-size:clamp(34px,4.8vw,58px);max-width:22ch;font-weight:300}
.post-hero .lede{max-width:62ch}
.post-hero .meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--grey-dark)}
.post-hero .meta b{color:var(--accent-soft);font-weight:500}
@media(max-width:760px){.post-hero{padding:64px 0 56px}.post-hero.has-img{padding-bottom:120px}}

/* The photo rises into the dark band above: flow-root stops its negative
   margin collapsing into the section (which would pull the pale background up). */
section.post-main{padding-top:0;display:flow-root}
.post-figure{position:relative;z-index:2;margin:-150px 0 56px;border-radius:calc(var(--radius) + 4px);overflow:hidden;box-shadow:0 30px 70px rgba(8,12,32,.28);aspect-ratio:21/9;background:var(--navy)}
.post-figure img{width:100%;height:100%;object-fit:cover}
@media(max-width:760px){.post-figure{margin:-84px 0 40px;aspect-ratio:16/10}}
section.post-main.no-img{padding-top:72px}

.post-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:64px;align-items:start}
@media(max-width:960px){.post-layout{grid-template-columns:1fr;gap:48px}}

.post-content{max-width:720px}
.post-content>*:first-child{margin-top:0}
.post-content p,.post-content li{color:#40465f;font-size:16.5px;line-height:1.8}
.post-content p{margin-top:20px}
.post-content h2{font-size:clamp(24px,2.6vw,31px);font-weight:700;letter-spacing:-.025em;margin-top:52px;line-height:1.2}
.post-content h3{font-size:19px;margin-top:34px}
.post-content ul,.post-content ol{margin:18px 0 0 1.25em}
.post-content li{margin-top:10px;padding-left:4px}
.post-content li::marker{color:var(--accent);font-weight:700}
.post-content ol li::marker{font-family:'JetBrains Mono',monospace;font-size:14px}
.post-content strong{color:var(--navy);font-weight:600}
.post-content a{color:var(--blue);font-weight:500;border-bottom:1px solid rgba(49,86,254,.35);transition:border-color .2s}
.post-content a:hover{border-bottom-color:var(--blue)}
.post-content blockquote{border-left:3px solid var(--accent);padding:6px 0 6px 22px;margin-top:28px}

.post-aside{position:sticky;top:104px;display:grid;gap:22px}
@media(max-width:960px){.post-aside{position:static}}
.post-aside .card{padding:28px 26px}
.post-aside .card h3{margin-top:10px;font-size:18px}
.post-aside .cta-card{background:var(--navy);border-color:var(--navy);color:#fff;position:relative;overflow:hidden}
.post-aside .cta-card::before{content:'';position:absolute;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(219,0,114,.45),transparent 65%);top:-160px;right:-140px}
.post-aside .cta-card>*{position:relative}
.post-aside .cta-card .k{color:var(--accent-soft)}
.post-aside .cta-card p{color:var(--grey-dark)}
.post-aside .cta-card .btn{margin-top:20px;width:100%;justify-content:center;padding:13px 20px}
.post-aside .related{list-style:none;margin-top:12px}
.post-aside .related li{border-top:1px solid var(--line);padding:13px 0}
.post-aside .related li:first-child{border-top:0}
.post-aside .related a{font-size:14px;font-weight:600;line-height:1.45;display:block}
.post-aside .related a:hover{color:var(--accent)}
.post-aside .related .k{display:block;margin-top:4px}

section.post-more{padding-top:24px}
.post-more .grid{margin-top:36px}