/* Skillumen blog — article + index styling. Builds on pages.css variables.
   Design language (v2): editorial + visual. Wide canvas via a full-bleed grid so text
   stays at a readable measure while diagrams/callouts span wide. No box-per-section;
   colour lives in TEXT (accent keywords, coloured heads) and in true callouts/figures —
   never a big accent bar per section (see no-box-per-section, study-card-design-rules). */
:root{
  --bl-teal:#1f8a7a; --bl-rust:#c1532b; --bl-gold:#c98a1e; --bl-plum:#8a5cc0;
  --bl-hair:rgba(60,40,10,.14); --bl-ink:#26241f; --bl-dim:#6a6357;
}
[data-accent="rust"]{--acc:var(--bl-rust);--acc-soft:rgba(193,83,43,.10);--acc-line:rgba(193,83,43,.28)}
[data-accent="teal"]{--acc:var(--bl-teal);--acc-soft:rgba(31,138,122,.10);--acc-line:rgba(31,138,122,.30)}
[data-accent="gold"]{--acc:var(--bl-gold);--acc-soft:rgba(201,138,30,.12);--acc-line:rgba(201,138,30,.32)}
[data-accent="plum"]{--acc:var(--bl-plum);--acc-soft:rgba(138,92,192,.10);--acc-line:rgba(138,92,192,.28)}

/* lighter, near-white warm ground for blog pages only */
body.bl{background:radial-gradient(135% 90% at 50% -12%,#fffdf9,#fbf7f0 64%,#f7f1e6)}
body.bl .pg-nav,body.bl .pg-foot{max-width:1080px}

/* ---------- INDEX ---------- */
.bl-index{max-width:1080px}
.bl-index .pg-lead{max-width:640px}
.bl-grid{margin-top:38px;border-top:1px solid var(--bl-hair)}
.bl-card{display:grid;grid-template-columns:158px 1fr;gap:6px 30px;padding:26px 0;border-bottom:1px solid var(--bl-hair);text-decoration:none;color:var(--bl-ink);align-items:start}
.bl-card:hover{text-decoration:none}
.bl-card-tag{grid-column:1;grid-row:1/4;font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--acc,#1f8a7a);font-weight:700;padding-top:6px;display:flex;align-items:baseline;gap:8px}
.bl-card-tag .bl-card-emoji{font-size:17px}
.bl-card h2{grid-column:2;font-family:'Bricolage Grotesque',sans-serif;font-weight:800;letter-spacing:-.01em;font-size:22px;line-height:1.2;margin:0;color:var(--bl-ink);transition:color .15s}
.bl-card:hover h2{color:var(--acc,#1f8a7a)}
.bl-card p{grid-column:2;margin:3px 0 0;color:var(--bl-dim);font-size:14.5px;line-height:1.55;max-width:64ch}
.bl-card-meta{grid-column:2;font-family:'JetBrains Mono',monospace;font-size:12px;color:#8a8172;margin-top:8px}

/* ---------- ARTICLE ---------- */
.bl-article{max-width:1080px}
/* full-bleed grid: normal flow sits in a 720px reading column; figures/bands break out wide */
.bl-body{display:grid;grid-template-columns:minmax(18px,1fr) min(720px,100%) minmax(18px,1fr);font-size:17.5px;line-height:1.75;color:var(--bl-ink)}
.bl-body>*{grid-column:2}
.bl-body>.bl-fig,.bl-body>.bl-band{grid-column:1/-1}

/* breadcrumb */
.bl-crumb{font-family:'JetBrains Mono',monospace;font-size:12px;color:#8a8172;display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:18px}
.bl-crumb a{color:#8a8172;text-decoration:none}.bl-crumb a:hover{color:var(--acc,#1f8a7a)}
.bl-crumb span{opacity:.5}

/* header — colourful, no big bar. emoji tile + accent kicker + byline */
.bl-hd{margin:0 0 12px}
.bl-hd .bl-emoji{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:15px 15px 15px 5px;background:var(--acc-soft);font-size:27px;margin-bottom:14px;transform:rotate(-4deg)}
.bl-hd .pg-kick{color:var(--acc,#1f8a7a);letter-spacing:.14em}
.bl-hd h1{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;letter-spacing:-.02em;font-size:clamp(30px,4.6vw,44px);line-height:1.06;margin:8px 0 12px;color:#1f1e1b;max-width:16ch}
.bl-byline{display:flex;align-items:center;gap:10px;font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--bl-dim);flex-wrap:wrap}
.bl-byline .bl-av{width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,var(--acc),#8f3a1c);color:#fff;display:grid;place-items:center;font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:11px}
.bl-byline .dot{opacity:.4}
.bl-lead{font-size:19.5px;line-height:1.6;color:#3a362e;margin:22px 0 4px}
.bl-lead b,.bl-lead strong{color:var(--acc,#1f8a7a)}

/* body typography */
.bl-body h2{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;letter-spacing:-.02em;font-size:clamp(23px,3vw,30px);line-height:1.14;margin:52px 0 6px;color:var(--acc,#1f8a7a)}
.bl-body h2 .h2num{font-family:'JetBrains Mono',monospace;font-size:14px;font-weight:700;color:var(--bl-dim);opacity:.7;margin-right:10px}
.bl-body h2+.bl-sub{margin-top:0}
.bl-sub{color:var(--bl-dim);font-size:16px;margin:0 0 14px}
.bl-body h3{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:19px;margin:28px 0 8px;color:#2a2822}
.bl-body p{margin:0 0 17px}
.bl-body ul,.bl-body ol{margin:0 0 18px;padding-left:22px}.bl-body li{margin:7px 0}
.bl-body ul li::marker{color:var(--acc,#1f8a7a)}
.bl-body a{color:var(--bl-rust);text-decoration:underline;text-underline-offset:2px;text-decoration-color:rgba(193,83,43,.4)}
.bl-body a:hover{text-decoration-color:var(--bl-rust)}
.bl-body strong{font-weight:700;color:#26241f}
/* inline colour highlight — bold accent only (no circles/underlines) */
.bl-body .hl{color:var(--acc,#1f8a7a);font-weight:700}
.bl-body .hl-rust{color:var(--bl-rust);font-weight:700}
.bl-body .hl-gold{color:var(--bl-gold);font-weight:700}
.bl-body code{font-family:'JetBrains Mono',monospace;font-size:.86em;background:rgba(60,40,10,.06);border-radius:5px;padding:1px 6px;color:#a3521a}
.bl-body pre{background:#26241f;color:#f4ecdd;border-radius:12px;padding:16px 18px;overflow-x:auto;font-family:'JetBrains Mono',monospace;font-size:13.5px;line-height:1.6;margin:0 0 20px}
.bl-body pre code{background:none;color:inherit;padding:0}

/* pull-quote — colourful, no big bar: a large accent quote glyph */
.bl-body blockquote{position:relative;margin:26px 0;padding:2px 0 2px 40px;font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:21px;line-height:1.4;color:#2a2822}
.bl-body blockquote:before{content:"\201C";position:absolute;left:-2px;top:-6px;font-size:52px;line-height:1;color:var(--acc,#1f8a7a);font-family:Georgia,serif}

/* callouts — genuine boxes (allowed): soft accent tint, coloured label, no heavy border */
.bl-note{background:var(--acc-soft);border-radius:14px;padding:16px 20px 15px;margin:22px 0;font-size:16px;line-height:1.62;color:#33302a}
.bl-note .lbl{display:inline-flex;align-items:center;gap:7px;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--acc,#1f8a7a);margin-bottom:6px}
.bl-note b{color:var(--acc,#1f8a7a)}
.bl-note.is-rust{background:rgba(193,83,43,.09)}.bl-note.is-rust .lbl,.bl-note.is-rust b{color:var(--bl-rust)}
.bl-note.is-gold{background:rgba(201,138,30,.12)}.bl-note.is-gold .lbl,.bl-note.is-gold b{color:#a5711a}
.bl-note.is-teal{background:rgba(31,138,122,.10)}.bl-note.is-teal .lbl,.bl-note.is-teal b{color:var(--bl-teal)}

/* Q&A — interview transcript: coloured Q marker, hairline between, no container */
.bl-body .bl-qa{position:relative;border-top:1px solid var(--bl-hair);padding:26px 0 8px 40px;margin:0}
.bl-body h2+.bl-qa,.bl-body .bl-sub+.bl-qa,.bl-body .bl-fig+.bl-qa{border-top:0;padding-top:8px}
.bl-body .bl-qa:before{content:"Q";position:absolute;left:0;top:27px;width:26px;height:26px;border-radius:8px;background:var(--acc-soft);color:var(--acc,#1f8a7a);font-family:'JetBrains Mono',monospace;font-size:13px;font-weight:700;display:grid;place-items:center}
.bl-body h2+.bl-qa:before,.bl-body .bl-sub+.bl-qa:before,.bl-body .bl-fig+.bl-qa:before{top:9px}
.bl-body .bl-qa .qq{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:19px;line-height:1.3;color:#26241f;margin:0 0 11px}
.bl-body .bl-qa .qq b{color:var(--acc,#1f8a7a)}
.bl-body .bl-qa .probe{font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:.02em;color:var(--acc,#1f8a7a);margin-top:4px;display:flex;gap:7px}
.bl-body .bl-qa .probe:before{content:"\25B8";opacity:.8}
.bl-body .bl-qa .probe b{text-transform:uppercase;font-weight:700;letter-spacing:.06em}

/* figures / inline SVG diagrams — full-bleed, sit directly on the ground, no box */
.bl-fig{margin:30px 0;text-align:center}
.bl-fig svg{display:block;width:100%;max-width:900px;height:auto;margin:0 auto}
.bl-fig img{width:100%;max-width:900px;height:auto;margin:0 auto;border-radius:10px}
.bl-fig figcaption,.bl-fig .figcap{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:15px;color:#4a463d;margin-top:12px;max-width:60ch;margin-left:auto;margin-right:auto}
.bl-fig .figcap .aha{color:var(--acc,#1f8a7a)}
/* animated flow on pipeline arrows */
.bl-flow{stroke-dasharray:5 7;animation:blflow 1.1s linear infinite}
@keyframes blflow{to{stroke-dashoffset:-24}}
.bl-pulse{transform-origin:center;animation:blpulse 2.2s ease-in-out infinite}
@keyframes blpulse{0%,100%{opacity:.55}50%{opacity:1}}

/* FAQ — hairline rows */
.bl-faq{margin:56px 0 0}
.bl-faq>h2{color:var(--acc,#1f8a7a)}
.bl-q{border-top:1px solid var(--bl-hair)}
.bl-q summary{cursor:pointer;list-style:none;font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:17.5px;padding:16px 0;color:#26241f;display:flex;justify-content:space-between;gap:12px}
.bl-q summary::-webkit-details-marker{display:none}
.bl-q summary::after{content:"+";color:var(--acc,#1f8a7a);font-weight:800;font-size:20px;line-height:1}
.bl-q[open] summary::after{content:"\2013"}
.bl-q>div{padding:0 0 18px;color:#4a463d;line-height:1.66}

/* CTA — colourful end break, no dark box */
.bl-cta{margin:56px 0 0;padding:26px 26px 24px;border-radius:18px;background:linear-gradient(135deg,var(--acc-soft),rgba(255,255,255,.4));border:1px solid var(--acc-line)}
.bl-cta h3{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:24px;margin:0 0 8px;color:#26241f}
.bl-cta p{margin:0 0 18px;color:#413d35;font-size:16px;line-height:1.6;max-width:56ch}
.bl-body .bl-cta-btn{display:inline-flex;align-items:center;gap:8px;background:var(--bl-rust);color:#fff;font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:16px;border-radius:12px;padding:13px 26px;text-decoration:none;box-shadow:0 14px 30px -14px rgba(193,83,43,.7)}
.bl-body .bl-cta-btn:hover{background:#a8461f;text-decoration:none}

/* related — hairline index rows with hover arrow */
.bl-related{margin:52px 0 0}
.bl-related>h2{color:var(--acc,#1f8a7a);margin-bottom:4px}
.bl-rgrid{display:block}
.bl-body .bl-rcard{display:flex;align-items:baseline;gap:16px;border-top:1px solid var(--bl-hair);padding:16px 0;text-decoration:none;color:#26241f}
.bl-body .bl-rcard:hover{text-decoration:none;color:#26241f}
.bl-rtag{font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--bl-rust);flex:0 0 120px}
.bl-rcard b{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:16.5px;line-height:1.3}
.bl-rcard b:after{content:"\2192";display:inline-block;margin-left:8px;opacity:0;transform:translateX(-4px);transition:.15s;color:var(--bl-rust)}
.bl-rcard:hover b{color:var(--bl-rust)}
.bl-rcard:hover b:after{opacity:1;transform:none}

@media(max-width:760px){
  .bl-body{font-size:16.5px;grid-template-columns:1fr}
  .bl-body>.bl-fig,.bl-body>.bl-band{grid-column:1}
  .bl-card{grid-template-columns:1fr;gap:4px}
  .bl-card-tag{grid-row:auto}
  .bl-card-tag,.bl-card h2,.bl-card p,.bl-card-meta{grid-column:1}
  .bl-rtag{flex-basis:92px}
  .bl-body .bl-qa{padding-left:32px}
}

/* open-source companion — reciprocal link back to the GitHub awesome-list */
.bl-gh{margin:30px 0 0;font-size:14px;color:#6a6357;line-height:1.6}
.bl-index .bl-gh{margin:20px 0 30px}
.bl-gh a{display:inline-flex;align-items:center;gap:9px;color:#26241f;text-decoration:none;background:#f4f1ea;border:1px solid var(--bl-hair);border-radius:12px;padding:10px 15px;margin-right:9px;transition:background .15s,color .15s,border-color .15s}
.bl-gh a:hover{background:#26241f;color:#fff;border-color:#26241f;text-decoration:none}
.bl-gh svg{flex:0 0 auto}
.bl-gh b{font-family:'Bricolage Grotesque',sans-serif;font-weight:800}