/* ============================================================
   ZENTAVOR — blog article (longread). Shared by every article page:
   blog-support-agents.html, blog-leap-deepfest-2026.html.
   Tokens-only; concepts A/B/C. Neutral --border separators (no static
   accent bars); --warn marks the "before/worse" side (never --neg for
   fills); legal/step numbering is real sequence, not decorative ordinals.
   ============================================================ */
html{ scroll-behavior:smooth; scroll-padding-top:96px; }
@media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } }
body{ background:var(--bg); color:var(--text); font-family:var(--font-body); margin:0; overflow-x:clip; -webkit-font-smoothing:antialiased; }
*{ box-sizing:border-box; }

.art-hero{ position:relative; overflow:clip; padding:clamp(124px,15vh,168px) 0 0; }
.art-hero::before{ content:""; position:absolute; inset:0 0 auto 0; height:320px; pointer-events:none;
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.art-wrap{ width:100%; max-width:780px; margin:0 auto; padding:0 var(--gutter); position:relative; }
.art-crumb{ font-family:var(--font-mono); font-size:12px; letter-spacing:0.04em; color:var(--text-faint); }
.art-crumb a{ color:var(--text-muted); text-decoration:none; }
.art-crumb a:hover{ color:var(--text); }
.art-cat{ display:inline-block; margin:18px 0 0; font-family:var(--font-mono); font-size:11px; letter-spacing:0.14em;
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.art-sub{ font-size:clamp(16px,1.5vw,18px); color:var(--text-muted); line-height:1.5; margin:16px 0 0; }
.art-meta{ font-family:var(--font-mono); font-size:12.5px; letter-spacing:0.03em; color:var(--text-faint); margin:18px 0 0;
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.art-tags{ display:flex; flex-wrap:wrap; gap:8px; margin:18px 0 0; }
.art-tag{ font-family:var(--font-mono); font-size:11px; color:var(--text-muted); background:var(--surface);
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.art-cover{ margin:clamp(26px,4vh,38px) auto 0; max-width:1000px; padding:0 var(--gutter); }
.art-cover-inner{ aspect-ratio:21/9; border-radius:var(--radius-lg); border:1px solid var(--border); overflow:hidden;
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.art-cover-img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; display:block; }
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/* in-text photos: a pair of portrait (3:4) frames side by side, stacked on phones */
.art-fig{ margin:32px 0 36px; }
.art-fig-row{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }
@media(max-width:560px){ .art-fig-row{ grid-template-columns:1fr; } }
.art-fig img{ display:block; width:100%; height:auto; aspect-ratio:3/4; object-fit:cover;
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.art-fig figcaption{ font-family:var(--font-mono); font-size:12px; line-height:1.5; letter-spacing:0.03em;
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.art-doc{ width:100%; max-width:780px; margin:0 auto; padding:clamp(34px,5vh,52px) var(--gutter) clamp(44px,6vh,64px); }
.art-doc .lead-p{ font-size:18px; line-height:1.7; color:var(--text); margin:0 0 8px; }
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.art-doc h2:first-of-type{ margin-top:32px; }
.art-doc h3{ font-family:var(--font-display); font-weight:600; letter-spacing:-0.01em; font-size:17px; color:var(--text); margin:26px 0 8px; }
.art-doc p{ font-size:16px; line-height:1.74; color:var(--text-muted); margin:0 0 16px; }
.art-doc strong{ color:var(--text); font-weight:600; }
.art-doc ul{ margin:0 0 16px; padding:0; list-style:none; }
.art-doc > ul > li, .art-list li{ position:relative; padding-left:22px; font-size:16px; line-height:1.7; color:var(--text-muted); margin:0 0 9px; }
.art-doc > ul > li::before, .art-list li::before{ content:""; position:absolute; left:3px; top:12px; width:6px; height:1px; background:var(--text-faint); }
.art-doc a{ color:var(--accent-text); text-decoration:none; border-bottom:1px solid color-mix(in srgb,var(--accent-soft) 34%, transparent); }
.art-doc a:hover{ color:var(--text); border-bottom-color:var(--text); }

/* purple stat callout (mirrors the source's highlight box) */
.art-hl{ background:color-mix(in srgb, var(--accent) 16%, var(--bg-elev)); border:1px solid color-mix(in srgb,var(--accent) 38%, transparent);
  border-radius:var(--radius-lg); padding:22px 24px; margin:24px 0; }
.art-hl p{ margin:0; color:var(--text); font-size:15.5px; line-height:1.65; }

/* pull quote */
.art-quote{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:24px 26px; margin:24px 0; }
.art-quote p{ margin:0 0 10px; font-family:var(--font-display); font-weight:400; font-size:19px; line-height:1.5; color:var(--text); letter-spacing:-0.01em; }
.art-quote cite{ font-family:var(--font-mono); font-size:12px; font-style:normal; color:var(--text-faint); }

/* before / after */
.ba{ display:grid; grid-template-columns:1fr 1fr; gap:14px; margin:24px 0 6px; }
@media(max-width:620px){ .ba{ grid-template-columns:1fr; } }
.ba-col{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:22px 22px 18px; }
.ba-col h4{ font-family:var(--font-mono); font-size:11px; letter-spacing:0.14em; text-transform:uppercase; margin:0 0 14px; }
.ba-col.before h4{ color:var(--warn-text); }
.ba-col.after h4{ color:var(--pos-text); }
.ba-row{ display:flex; justify-content:space-between; align-items:baseline; gap:12px; padding:10px 0; border-top:1px solid var(--border); }
.ba-row:first-of-type{ border-top:0; padding-top:0; }
.ba-row .k{ color:var(--text-muted); font-size:13px; }
.ba-row .v{ font-family:var(--font-mono); font-weight:500; font-size:14px; }
.ba-col.before .v{ color:var(--warn-text); }
.ba-col.after .v{ color:var(--pos-text); }
.art-src{ font-family:var(--font-mono); font-size:11px; color:var(--text-faint); margin:6px 0 0; }

/* numbered steps (architecture + roadmap) */
.steps{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:clamp(20px,3vw,30px); margin:24px 0; }
.steps-h{ font-family:var(--font-mono); font-size:11px; letter-spacing:0.16em; text-transform:uppercase; color:var(--accent-soft); margin:0 0 22px; }
.step{ display:grid; grid-template-columns:34px 1fr; gap:16px; padding-bottom:22px; }
.step:last-child{ padding-bottom:0; }
.step-n{ width:30px; height:30px; border-radius:50%; display:grid; place-items:center; font-family:var(--font-mono); font-size:13px; color:#fff; background:var(--accent); }
.step-c b{ display:block; font-family:var(--font-display); font-weight:600; font-size:15.5px; color:var(--text); margin-bottom:5px; }
.step-c p{ margin:0; font-size:14.5px; line-height:1.6; color:var(--text-muted); }
.step-dur{ float:right; font-family:var(--font-mono); font-size:10.5px; letter-spacing:.05em; color:var(--accent-text);
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/* metric cards */
.mcards{ display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin:24px 0; }
@media(max-width:680px){ .mcards{ grid-template-columns:1fr 1fr; } }
@media(max-width:430px){ .mcards{ grid-template-columns:1fr; } }
.mcard{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:20px 16px; }
.mcard .v{ font-family:var(--font-display); font-weight:600; font-size:clamp(24px,3vw,31px); letter-spacing:-0.02em;
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.mcard .l{ font-size:12.5px; line-height:1.45; color:var(--text-muted); margin-top:8px; }

/* before/after bar chart */
.barcmp{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:clamp(20px,3vw,30px); margin:24px 0 6px; }
.barcmp-h{ font-family:var(--font-mono); font-size:11px; letter-spacing:0.16em; text-transform:uppercase; color:var(--accent-soft); margin:0 0 20px; }
.barg{ margin-bottom:20px; }
.barg:last-child{ margin-bottom:0; }
.barg-t{ font-family:var(--font-display); font-weight:600; font-size:14.5px; color:var(--text); margin:0 0 10px; }
.bar{ display:grid; grid-template-columns:84px 1fr 46px 58px; align-items:center; gap:10px; margin:6px 0;
  font-family:var(--font-mono); font-size:11.5px; color:var(--text-muted); }
.bar .track{ display:block; height:10px; background:var(--bg-deep); border-radius:999px; overflow:hidden; }
.bar .fill{ display:block; height:100%; border-radius:999px; }
.bar.before .fill{ background:var(--warn); }
.bar.after .fill{ background:var(--accent-2); }
.bar .pct{ text-align:right; color:var(--text); }
.bar .abs{ text-align:right; color:var(--text-faint); }
@media(max-width:520px){ .bar{ grid-template-columns:70px 1fr 40px 50px; font-size:10.5px; } }

/* case cards */
.cases{ display:grid; gap:16px; margin:24px 0; }
.case{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:24px; }
.case-sec{ display:inline-block; font-family:var(--font-mono); font-size:10.5px; letter-spacing:0.12em; text-transform:uppercase;
  color:var(--accent-text); border:1px solid color-mix(in srgb,var(--accent-soft) 30%, transparent); border-radius:999px; padding:5px 11px; }
.case h4{ font-family:var(--font-display); font-weight:600; font-size:14.5px; letter-spacing:0.02em; text-transform:uppercase; color:var(--text); margin:14px 0 8px; }
.case p{ margin:0 0 14px; font-size:14.5px; line-height:1.62; color:var(--text-muted); }
.case-chips{ display:flex; flex-wrap:wrap; gap:8px; }
.case-chip{ font-family:var(--font-mono); font-size:11px; color:var(--text-muted); background:var(--bg-deep); border:1px solid var(--border); border-radius:999px; padding:6px 11px; }

/* ROI table */
.roi-wrap{ overflow-x:auto; margin:22px 0 6px; border:1px solid var(--border); border-radius:var(--radius-lg); }
.roi{ width:100%; border-collapse:collapse; font-size:13.5px; min-width:540px; }
.roi th, .roi td{ text-align:left; padding:13px 18px; border-top:1px solid var(--border); }
.roi thead th{ border-top:0; font-family:var(--font-mono); font-size:11px; letter-spacing:0.1em; text-transform:uppercase; color:var(--text-faint); font-weight:400; }
.roi td:first-child{ color:var(--text-muted); font-family:var(--font-body); }
.roi td{ color:var(--text); font-family:var(--font-mono); }
.roi .pos{ color:var(--pos-text); }

a:focus-visible{ outline:2px solid var(--accent-soft); outline-offset:3px; border-radius:3px; }

/* subscribe (shared look with blog.html) */
.blog-sub{ padding:clamp(20px,4vh,40px) 0 clamp(70px,9vh,100px); }
.blog-sub .wrap{ max-width:960px; }
.blog-sub-inner{ background:var(--surface-solid); border:1px solid var(--border); border-radius:var(--radius-lg);
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.blog-sub-inner::before{ content:""; position:absolute; inset:auto -10% -60% auto; width:400px; height:400px; pointer-events:none;
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.blog-sub h2{ font-family:var(--font-display); font-weight:500; letter-spacing:-0.025em; line-height:1.1;
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.blog-sub p{ color:var(--text-muted); font-size:15px; line-height:1.6; margin:13px 0 0; max-width:54ch; position:relative; }
.blog-sub-list{ list-style:none; margin:16px 0 0; padding:0; position:relative; }
.blog-sub-list li{ position:relative; padding-left:20px; font-size:14px; color:var(--text-muted); margin:0 0 7px; }
.blog-sub-list li::before{ content:""; position:absolute; left:3px; top:9px; width:5px; height:1px; background:var(--accent-soft); }
.blog-sub-form{ display:flex; gap:12px; margin:24px 0 12px; max-width:520px; position:relative; flex-wrap:wrap; }
.blog-sub-form input[type="email"]{ flex:1; min-width:220px; height:52px; padding:0 18px; font-family:var(--font-body); font-size:15px;
  color:var(--text); background:var(--bg-deep); border:1px solid var(--border); border-radius:999px; outline:none; transition:border-color .2s var(--ease); }
.blog-sub-form input[type="email"]:focus{ border-color:var(--accent-soft); }
.blog-sub-form input::placeholder{ color:var(--text-faint); }
.blog-consent{ display:flex; align-items:flex-start; gap:9px; font-size:13px; color:var(--text-faint); line-height:1.5; position:relative; max-width:520px; }
.blog-consent input{ margin-top:2px; accent-color:var(--accent); }
.blog-consent a{ color:var(--accent-text); text-decoration:none; border-bottom:1px solid color-mix(in srgb,var(--accent-soft) 34%, transparent); }
.blog-sub-done{ display:none; position:relative; font-family:var(--font-display); font-size:18px; color:var(--text); margin:22px 0 0; }
.blog-sub-done.is-on{ display:block; }
.blog-sub-form.is-hidden, .blog-consent.is-hidden{ display:none; }
@media (max-width:768px){ .blog-sub-form .btn{ width:100%; } }