:root{
  --bg:#FFFFFF;--bg2:#FAFAFB;--ink:#15131C;--ink-2:#54515F;--ink-3:#8E8B98;--line:#ECEAF0;
  --purple:#8D12E8;--purple-deep:#7A0FCB;--purple-light:#C77DFF;--purple-mist:#F7EDFE;--purple-tint:rgba(141,18,232,.06);
  --green:#1D9E75;--green-soft:#EAF8F2;--coral:#993C1D;--coral-soft:#FBF0EC;--amber:#B5760A;
  --ai1:#7C5CFF;--ai2:#9D7BFF;--ai3:#C77DFF;--ai-soft:#F2EEFF;
  --maxw:1180px;--col:720px;
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--bg);color:var(--ink);line-height:1.68;-webkit-font-smoothing:antialiased;font-feature-settings:'cv11','ss01'}
a{color:var(--purple);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* scroll progress bar */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--ai1),var(--purple));z-index:200;transition:width .1s}

/* nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:58px;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.brand{display:flex;align-items:center;gap:9px;font-weight:650;font-size:16.5px;letter-spacing:-.02em;color:var(--ink)}
.chev{width:21px;height:21px}
.nav .book{background:linear-gradient(135deg,var(--purple-light),var(--purple) 55%,var(--purple-deep));color:#fff;font-weight:600;font-size:13.5px;padding:9px 17px;border-radius:999px}
.nav .book:hover{text-decoration:none;filter:brightness(1.07)}

/* ===== AI HERO BANNER ===== */
.banner{position:relative;overflow:hidden;background:linear-gradient(120deg,#F4F0FF 0%,#EEF1FF 42%,#F3EEFF 70%,#FBF1FB 100%);border-bottom:1px solid var(--line)}
.banner::before{content:"";position:absolute;right:-6%;top:-30%;width:560px;height:560px;background:radial-gradient(circle,rgba(124,92,255,.18),transparent 62%);pointer-events:none}
.banner-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center;padding:30px 0 40px}
.crumb{font-size:12.5px;color:var(--ink-3);padding:20px 0 0}
.crumb a{color:var(--ink-3)}.crumb b{color:var(--ink-2);font-weight:500}
.ai-pill{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.02em;color:#fff;background:linear-gradient(135deg,var(--ai1),var(--ai3));border-radius:999px;padding:6px 14px;margin-bottom:16px;box-shadow:0 6px 18px -8px rgba(124,92,255,.6)}
.ai-pill .spark{width:13px;height:13px}
h1{font-size:clamp(30px,4.3vw,46px);font-weight:800;letter-spacing:-.034em;line-height:1.07;margin-bottom:16px}
.standfirst{font-size:18px;color:var(--ink-2);line-height:1.6;max-width:34em}
.meta-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}
.chip{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:500;color:var(--ink-2);background:rgba(255,255,255,.75);border:1px solid rgba(255,255,255,.9);border-radius:999px;padding:7px 13px;backdrop-filter:blur(4px)}
.chip svg{width:14px;height:14px;stroke:var(--purple);fill:none;stroke-width:2}
.cards{position:relative;height:300px}
/* decorative colour blobs behind the cards (reference style) */
.cards .blob{position:absolute;border-radius:50%;z-index:0}
.blob-a{width:96px;height:96px;background:#7CE0C0;left:16%;top:34%;opacity:.9}
.blob-b{width:120px;height:120px;background:#9DB8FF;right:6%;top:6%;opacity:.85}
.blob-c{width:64px;height:64px;background:#F6C8A8;left:4%;bottom:10%;opacity:.9}
.cards .plus{position:absolute;color:var(--ai2);font-size:18px;font-weight:300;opacity:.5;z-index:1}
.card{position:absolute;background:#fff;border-radius:16px;box-shadow:0 22px 54px -22px rgba(40,30,80,.45);padding:15px 17px 22px;border:1px solid rgba(255,255,255,.9);z-index:2;overflow:hidden}
.card .cblob{position:absolute;bottom:-20px;border-radius:50%;z-index:0;opacity:1}
.card .ct,.card .cv,.card .sub,.card .ring,.card .spark-line,.card .spark{position:relative;z-index:1}
.card .ct{font-size:12px;color:var(--ink-2);font-weight:600;margin-bottom:9px;display:flex;align-items:center;gap:7px}
.card .ci-dot{width:18px;height:18px;border-radius:6px;display:grid;place-items:center;flex:none}
.card .ci-dot svg{width:11px;height:11px}
.card .cv{font-size:25px;font-weight:780;letter-spacing:-.02em;line-height:1}
.card .badge{display:inline-block;font-size:10px;font-weight:600;border-radius:6px;padding:2px 8px;margin-left:7px;vertical-align:middle}
.card .sub{font-size:10.5px;color:var(--ink-3);margin-top:3px}
/* mini sparkline */
.card .spark-line{margin-top:9px;height:24px;width:100%}
/* card 1: Mapping AI (indigo) */
.c1{left:0;top:42%;width:178px;transform:rotate(-5deg)}
.c1 .ci-dot{background:var(--ai-soft)}.c1 .ci-dot svg{stroke:var(--ai1);fill:none;stroke-width:2}
.c1 .cv{color:var(--ai1)}
/* card 2: Validation (green) */
.c2{left:25%;top:2%;width:196px;transform:rotate(3deg);z-index:4}
.c2 .ci-dot{background:var(--green-soft)}.c2 .ci-dot svg{stroke:var(--green);fill:none;stroke-width:2}
.c2 .cv{color:var(--green)}
.c2 .badge{background:var(--green-soft);color:var(--green)}
/* card 3: AI Error Review (amber ring) */
.c3{right:0;top:34%;width:184px;transform:rotate(6deg);z-index:3}
.c3 .ci-dot{background:#FDF1E0}.c3 .ci-dot svg{stroke:var(--amber);fill:none;stroke-width:2}
.c3 .ring{width:64px;height:64px;border-radius:50%;background:conic-gradient(var(--amber) 31%,#EFEDF3 0);display:grid;place-items:center;margin:6px auto 2px}
.c3 .ring i{width:48px;height:48px;border-radius:50%;background:#fff;display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--amber);font-style:normal}
.card .spark{position:absolute;width:15px;height:15px;color:var(--ai2)}

/* layout: content + sticky toc */
.layout{display:grid;grid-template-columns:1fr 248px;gap:54px;align-items:start;padding:42px 0 20px}
.layout .main{max-width:var(--col);min-width:0}
.sticky-toc{position:sticky;top:80px}
.sticky-toc h2{font-size:11px;font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);margin-bottom:14px}
.sticky-toc ol{list-style:none;counter-reset:t;display:grid;gap:2px}
.sticky-toc li{counter-increment:t}
.sticky-toc a{display:block;font-size:13.5px;color:var(--ink-2);padding:6px 10px;border-radius:7px;border-left:2px solid transparent;line-height:1.4}
.sticky-toc a:hover{background:var(--bg2);text-decoration:none}
.sticky-toc a.active{color:var(--purple);background:var(--purple-mist);border-left-color:var(--purple);font-weight:500}
.sticky-toc .tcta{margin-top:18px;display:block;width:100%;box-sizing:border-box;text-align:center;white-space:normal;line-height:1.35;background:linear-gradient(135deg,var(--ai2),var(--purple) 60%,var(--purple-deep));color:#fff;font-weight:600;font-size:13.5px;padding:12px 14px;border-radius:10px;box-shadow:0 10px 24px -12px rgba(141,18,232,.55)}
.sticky-toc .tcta:hover{text-decoration:none;filter:brightness(1.1)}

/* body */
article{font-size:16.5px}
article h2{font-size:25px;font-weight:700;letter-spacing:-.022em;margin:46px 0 14px;line-height:1.18;scroll-margin-top:74px}
article h2:first-child{margin-top:0}
article h3{font-size:18.5px;font-weight:650;margin:24px 0 8px}
article p{margin-bottom:16px;color:#312f3a}
article ul,article ol{margin:0 0 18px 4px;padding-left:20px}
article li{margin-bottom:9px;padding-left:4px}
article strong{font-weight:650;color:var(--ink)}
code{font-family:var(--font-mono);font-size:.86em;background:var(--purple-mist);color:var(--purple-deep);padding:2px 6px;border-radius:5px;white-space:nowrap}

/* step rail */
.steps{counter-reset:step;margin:8px 0}
.step{position:relative;padding:0 0 8px 64px;margin-bottom:8px}
.step::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--purple-light),var(--purple));color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;box-shadow:0 6px 16px -6px var(--purple-tint)}
.step::after{content:"";position:absolute;left:20px;top:50px;bottom:-8px;width:2px;background:linear-gradient(180deg,var(--purple-light),transparent)}
.step:last-child::after{display:none}
.step h3{margin:9px 0 8px;font-size:20px;font-weight:700;letter-spacing:-.01em}
.step.ai::before{background:linear-gradient(135deg,var(--ai1),var(--ai3))}
.ai-flag{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;color:var(--ai1);background:var(--ai-soft);border-radius:6px;padding:3px 9px;margin-left:8px;vertical-align:middle;letter-spacing:.02em}
.ai-flag svg{width:11px;height:11px}
.verify{display:flex;align-items:flex-start;gap:9px;background:var(--green-soft);border-radius:9px;padding:11px 14px;margin:14px 0 4px;font-size:14.5px;color:#1c5c46}
.verify svg{width:17px;height:17px;stroke:var(--green);fill:none;stroke-width:2.5;flex:none;margin-top:2px}

/* figure */
figure{margin:18px 0}
.shot{border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.04),0 16px 38px -26px rgba(21,19,28,.28)}
.shot img{width:100%;display:block}
.shot-ph{aspect-ratio:16/9;background:radial-gradient(circle at 30% 20%,#FBF7FE,#F3F1F6);display:grid;place-items:center;position:relative}
.shot-ph .lbl{background:#fff;border:1.5px dashed var(--purple-light);color:var(--purple-deep);border-radius:10px;padding:12px 18px;font-size:13px;font-family:var(--font-mono);text-align:center;max-width:78%;line-height:1.5}
figcaption{font-size:13px;color:var(--ink-3);margin-top:10px;display:flex;align-items:center;gap:8px;justify-content:center;text-align:center}
.tag{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.06em;text-transform:uppercase;border-radius:5px;padding:3px 8px;flex:none}
.tag.real{background:var(--green-soft);color:var(--green)}
.tag.todo{background:var(--coral-soft);color:var(--coral)}

/* callout */
.callout{display:flex;gap:13px;background:var(--bg2);border:1px solid var(--line);border-left:3px solid var(--purple);border-radius:0 11px 11px 0;padding:15px 18px;margin:22px 0;font-size:15px}
.callout.tip{border-left-color:var(--green);background:var(--green-soft)}
.callout.warn{border-left-color:var(--amber);background:#FDF6E9}
.callout.ai{border-left-color:var(--ai1);background:var(--ai-soft)}
.callout .ci{font-size:18px;flex:none;line-height:1.4}
.callout b{color:var(--ink)}

/* neutral accent decorations */
.accent-dots{display:flex;gap:6px;margin:0 0 6px}
.accent-dots span{width:8px;height:8px;border-radius:50%}
.accent-dots .d1{background:#9DB8FF}.accent-dots .d2{background:#7CE0C0}.accent-dots .d3{background:#F6C8A8}.accent-dots .d4{background:var(--ai2)}
h2 .h2-accent{display:inline-block;width:26px;height:4px;border-radius:3px;background:linear-gradient(90deg,var(--ai1),var(--ai3));vertical-align:middle;margin-right:11px}

/* structures block */
.struct{background:var(--bg2);border:1px solid var(--line);border-radius:13px;padding:6px 20px 14px;margin:20px 0}
.struct .sh{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin:14px 0 4px}
.struct .srow{display:flex;gap:12px;align-items:baseline;padding:8px 0;border-bottom:1px solid var(--line)}
.struct .srow:last-child{border-bottom:none}
.struct .sname{font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--purple-deep);flex:none;min-width:188px}
.struct .sdesc{font-size:14px;color:#312f3a}
@media (max-width:600px){.struct .srow{flex-direction:column;gap:2px}.struct .sname{min-width:0}}

/* table */
.tbl{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.tbl th,.tbl td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line)}
.tbl th{font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-3);font-weight:600;background:var(--bg2)}
.tbl tr:hover td{background:#FCFBFD}

/* faq */
.faq details{border:1px solid var(--line);border-radius:11px;margin-bottom:10px;overflow:hidden;background:#fff}
.faq summary{padding:16px 18px;font-weight:650;cursor:pointer;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--purple);font-size:23px;font-weight:300;flex:none}
.faq details[open] summary::after{content:"−"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .ans{padding:15px 18px;color:#312f3a;font-size:15.5px}
.faq code{white-space:normal}

/* cta */
.cta-box{position:relative;overflow:hidden;display:grid;grid-template-columns:1fr 360px;align-items:center;gap:20px;background:linear-gradient(120deg,#FBF7FF,#F3EEFF 60%,#FBF1FB);border:1px solid var(--line);border-radius:22px;padding:40px 8px 40px 38px;margin:48px 0 16px}
.cta-box .cta-copy h2{margin:0 0 12px;font-size:30px;font-weight:800;letter-spacing:-.03em;border:none;line-height:1.05}
.cta-box .cta-copy p{color:var(--ink-2);margin-bottom:22px;max-width:24em;font-size:16px}
.cta-box .cta-copy a{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--ai2),var(--purple) 60%,var(--purple-deep));color:#fff;font-weight:650;padding:14px 30px;border-radius:999px;font-size:15.5px;box-shadow:0 14px 30px -12px rgba(141,18,232,.55)}
.cta-box .cta-copy a:hover{text-decoration:none;filter:brightness(1.08)}
.cta-art{position:relative;height:280px}
.cta-art svg{position:absolute;right:0;bottom:0;height:100%;width:auto}
.cta-bin{position:absolute;font-family:var(--font-mono);font-weight:700;color:rgba(141,18,232,.07);font-size:40px;letter-spacing:4px;line-height:1.4;left:0;top:14%;user-select:none}
@media (max-width:760px){.cta-box{grid-template-columns:1fr;padding:34px 26px}.cta-art{display:none}}

/* related */
.related{border-top:1px solid var(--line);padding:36px 0 10px;margin-top:34px}
.related h2{font-size:20px;margin-bottom:18px}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.rel-card{border:1px solid var(--line);border-radius:13px;padding:18px;transition:border-color .2s,transform .2s,box-shadow .2s}
.rel-card:hover{border-color:var(--purple-light);transform:translateY(-3px);box-shadow:0 16px 34px -22px rgba(141,18,232,.4);text-decoration:none}
.rel-card .rk{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.rel-card .rt{font-weight:650;font-size:15.5px;margin-top:6px;color:var(--ink);line-height:1.3}

footer{border-top:1px solid var(--line);margin-top:36px;padding:32px 0;font-size:13px;color:var(--ink-3);text-align:center}
footer .disc{max-width:50em;margin:10px auto 0;font-size:12px;line-height:1.6}

@media (max-width:940px){.layout{grid-template-columns:1fr;gap:0}.sticky-toc{display:none}.banner-grid{grid-template-columns:1fr}.cards{display:none}}
@media (max-width:600px){
  .step{padding-left:52px}
  .step::before{width:36px;height:36px;font-size:15px}
  .step::after{left:17px}
}

.lead{font-size:18.5px;color:var(--ink-2);line-height:1.62;margin:0 0 18px}
.hgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0 8px}
@media(max-width:820px){.hgrid{grid-template-columns:1fr}}
.hcard{border:1px solid var(--line);border-radius:14px;padding:18px 18px 16px;background:linear-gradient(180deg,#fff,#FDFBFF)}
.hcard .hi{width:38px;height:38px;border-radius:11px;background:var(--purple-mist);display:grid;place-items:center;margin-bottom:12px}
.hcard .hi svg{width:20px;height:20px;stroke:var(--purple);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.hcard h4{font-size:15.5px;font-weight:680;letter-spacing:-.01em;margin:0 0 5px;color:var(--ink)}
.hcard p{font-size:13.6px;color:var(--ink-2);line-height:1.55;margin:0}
.checklist{list-style:none;margin:16px 0 8px;padding:0;display:grid;gap:11px}
.checklist li{position:relative;padding:0 0 0 32px;font-size:15.5px;line-height:1.56;color:#312f3a}
.checklist li::before{content:"";position:absolute;left:0;top:2px;width:21px;height:21px;border-radius:50%;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4 10-11' fill='none' stroke='white' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/15px no-repeat}
.checklist li b{color:var(--ink);font-weight:650}
.xlist{list-style:none;margin:14px 0 6px;padding:0;display:grid;gap:10px}
.xlist li{position:relative;padding:0 0 0 30px;font-size:15px;line-height:1.55;color:#312f3a}
.xlist li::before{content:"";position:absolute;left:0;top:3px;width:19px;height:19px;border-radius:50%;background:#B4341C url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 7l10 10M17 7L7 17' fill='none' stroke='white' stroke-width='3' stroke-linecap='round'/%3E%3C/svg%3E") center/13px no-repeat}
figure .shot img{width:100%;height:auto;display:block;border-radius:12px}
figure.info .shot img{max-width:700px;margin:0 auto}
.clusters{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:20px 0 6px}
@media(max-width:820px){.clusters{grid-template-columns:1fr}}
.cl{border:1px solid var(--line);border-radius:13px;padding:16px 17px;background:#fff}
.cl h4{margin:0 0 4px;font-size:15.5px;font-weight:700;letter-spacing:-.01em}
.cl h4 a{color:var(--ink);text-decoration:none}
.cl h4 a:hover{color:var(--purple)}
.cl p{margin:0 0 10px;font-size:13.4px;color:var(--ink-2);line-height:1.5}
.cl .lks{display:flex;flex-wrap:wrap;gap:6px}
.cl .lks a{font-family:var(--font-mono,monospace);font-size:11.5px;color:var(--purple-deep);background:var(--purple-mist);border:1px solid #EFE0FB;border-radius:6px;padding:4px 8px;text-decoration:none}
.cl .lks a:hover{background:#fff;border-color:var(--purple)}
@media(max-width:560px){.nav-inner{padding:0 16px}}
html{overflow-x:clip}

/* byline strip, matched to the data-migration guide */
.byline{display:flex;flex-wrap:wrap;align-items:stretch;gap:12px;margin:2px 0 30px;padding:0;border:0;font-size:13.5px}
.byline .byi{display:inline-flex;align-items:center;gap:11px;background:#fff;border:1px solid var(--line);
 border-radius:13px;padding:9px 15px 9px 10px;box-shadow:0 8px 20px -14px rgba(45,20,70,.35)}
.byline .byi-ic{width:33px;height:33px;border-radius:10px;display:grid;place-items:center;flex:none}
.byline .byi-ic svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.byline .ic-blue{background:#E3EDFF;color:#2563EB}
.byline .ic-purple{background:#F1E7FC;color:#8D12E8}
.byline .ic-green{background:#E6F6EC;color:#16A34A}
.byline .byi-tx{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.byline .byi-tx b{font-family:var(--font-mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;
 color:var(--ink-3);font-weight:700}
.byline .byi-val{font-size:13.5px;font-weight:600;color:var(--ink);margin-top:2px}
@media(max-width:620px){.byline{flex-direction:column}.byline .byi{width:100%}}
/* hero card stack */
.c3 .cv{color:var(--amber)}
.banner-grid{align-items:center}
@media(max-width:940px){.cards{display:none}}


/* rebuilt bottom CTA */
.cta-box{grid-template-columns:1fr 366px;gap:38px;padding:42px 42px 42px 40px;align-items:center}
.cta-box .cta-kick{display:block;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;
 text-transform:uppercase;color:var(--purple-deep);font-weight:600;margin-bottom:11px}
.cta-box .cta-copy p{max-width:30em;margin-bottom:20px}
.cta-box .cta-copy a.cta-btn{white-space:nowrap}
.cta-pts{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px 18px}
.cta-pts li{position:relative;padding-left:21px;font-size:13px;color:var(--ink-2);margin:0}
.cta-pts li::before{content:"";position:absolute;left:0;top:5px;width:13px;height:13px;border-radius:50%;
 background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4 10-11' fill='none' stroke='white' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/9px no-repeat}
.cta-art{height:auto;position:relative}
.sheet{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
 box-shadow:0 26px 60px -28px rgba(40,30,80,.5);transform:rotate(-1.4deg)}
.sheet-bar{display:flex;align-items:center;gap:6px;padding:10px 13px;background:#FAF9FC;border-bottom:1px solid var(--line)}
.sheet-bar i{width:8px;height:8px;border-radius:50%;background:#DEDAE6}
.sheet-bar span{margin-left:7px;font-family:var(--font-mono);font-size:10.5px;color:var(--ink-3)}
.sheet-head,.sheet-row{display:grid;grid-template-columns:52px 1fr 108px;align-items:center;
 padding:9px 13px;font-size:12px;gap:8px}
.sheet-head{background:#FCFBFD;border-bottom:1px solid var(--line);font-family:var(--font-mono);
 font-size:9.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--ink-3);font-weight:600}
.sheet-row{border-bottom:1px solid #F4F2F8;font-family:var(--font-mono);color:var(--ink-2)}
.sheet-row span:nth-child(2){text-align:right;padding-right:6px}
.sheet-row b{font-family:var(--font-mono);font-size:11px;font-weight:600;color:var(--green);
 background:var(--green-soft);border-radius:5px;padding:3px 7px;text-align:center}
.sheet-foot{display:flex;align-items:center;gap:8px;padding:11px 13px;font-size:12px;font-weight:600;
 color:#1c5c46;background:var(--green-soft)}
.sheet-foot .ok{width:14px;height:14px;border-radius:50%;flex:none;
 background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4 10-11' fill='none' stroke='white' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/10px no-repeat}
@media (max-width:760px){.cta-box{grid-template-columns:1fr;padding:32px 24px}.cta-art{display:none}
 .cta-box .cta-copy a.cta-btn{white-space:normal}}
/* page ends on the related section now that the footer is gone */
.related{padding-bottom:52px}


/* keyword nav button */
.nav .book{white-space:nowrap}
@media(max-width:700px){.nav .book .nb-full{display:none}}
/* sidebar cta sub */
.sticky-toc .tsub{font-size:11.5px;color:var(--ink-3);text-align:center;margin-top:7px;line-height:1.4}
/* bottom cta sub */
.cta-box .cta-copy .cta-sub{display:block;margin-top:13px;font-size:13px;color:var(--ink-3)}
/* in-article product block */
.prod{position:relative;overflow:hidden;border-radius:20px;padding:28px 30px 26px;margin:38px 0 34px;
 background:linear-gradient(135deg,#20103F 0%,#3B1C68 48%,#6C13B8 100%);color:#fff;
 box-shadow:0 26px 60px -34px rgba(60,20,120,.75)}
.prod::after{content:"";position:absolute;right:-90px;top:-120px;width:320px;height:320px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,255,255,.13),transparent 62%);pointer-events:none}
.prod-head{display:flex;gap:15px;align-items:flex-start;position:relative;z-index:1}
.prod-mark{width:42px;height:42px;border-radius:13px;background:rgba(255,255,255,.13);
 border:1px solid rgba(255,255,255,.2);display:grid;place-items:center;flex:none}
.prod-mark svg{width:23px;height:23px}
.prod-kick{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
 color:#C9A6F5;font-weight:600;display:block;margin-bottom:5px}
.prod h3{font-size:22px;font-weight:750;letter-spacing:-.026em;line-height:1.16;margin:0;color:#fff}
.prod-lead{position:relative;z-index:1;font-size:15.5px;line-height:1.6;color:rgba(255,255,255,.82);
 margin:15px 0 20px;max-width:44em}
.prod-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:11px;margin-bottom:22px}
.pf{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.13);border-radius:13px;padding:13px 14px}
.pfn{display:block;font-size:13px;font-weight:700;letter-spacing:-.01em;color:#fff;margin-bottom:5px}
.pf p{font-size:12.8px;line-height:1.45;color:rgba(255,255,255,.72);margin:0}
.prod-foot{position:relative;z-index:1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.prod-cta{display:inline-flex;align-items:center;background:#fff;color:#6C13B8;font-weight:700;font-size:14.5px;
 padding:13px 24px;border-radius:999px;letter-spacing:-.012em;white-space:nowrap}
.prod-cta:hover{text-decoration:none;background:#F7EDFE}
.prod-note{font-size:12.5px;color:rgba(255,255,255,.62);line-height:1.45}
@media(max-width:820px){.prod-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.prod{padding:24px 20px}.prod-grid{grid-template-columns:1fr}}

.tblwrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:20px 0;border-radius:10px}
.tblwrap .tbl{margin:0;min-width:560px}
@media(max-width:640px){.tblwrap .tbl{font-size:13.5px}}
/* long inline code must not force horizontal scroll on narrow screens */
@media(max-width:640px){code{white-space:normal;overflow-wrap:anywhere}}

/* ordered sequence list, used on bridge pages */
.numlist{counter-reset:nl;list-style:none;margin:18px 0 24px;padding:0}
.numlist li{counter-increment:nl;position:relative;padding:0 0 0 44px;margin-bottom:14px;
 font-size:16.5px;line-height:1.62;color:var(--ink-2)}
.numlist li::before{content:counter(nl);position:absolute;left:0;top:1px;width:29px;height:29px;
 border-radius:9px;background:var(--purple-soft);color:var(--purple-deep);display:grid;place-items:center;
 font-family:var(--font-mono);font-size:13px;font-weight:700}
.numlist li b{color:var(--ink);font-weight:650}

/* answer-engine summary block, sits directly under the byline */
.summary{position:relative;border:1px solid var(--line);border-left:5px solid var(--purple);
 border-radius:16px;background:linear-gradient(105deg,#FBF8FE,#FAFBFD 62%);padding:24px 28px 22px;
 margin:0 0 34px;box-shadow:0 14px 34px -28px rgba(45,20,90,.4)}
.summary .sum-k{display:flex;align-items:center;gap:9px;font-family:var(--font-mono);font-size:10.5px;
 letter-spacing:.16em;text-transform:uppercase;color:var(--purple-deep);font-weight:600;margin-bottom:12px}
.summary .sum-k svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.2;
 stroke-linecap:round;stroke-linejoin:round}
.summary h2.sum-h{font-size:19px;font-weight:750;letter-spacing:-.022em;margin:0 0 10px;padding:0;border:0}
.summary h2.sum-h::before{display:none}
.summary .sum-lead{font-size:16.5px;line-height:1.62;color:var(--ink);margin:0 0 16px;font-weight:450}
.summary .sum-pts{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.summary .sum-pts li{position:relative;padding-left:26px;font-size:15px;line-height:1.5;color:var(--ink-2);margin:0}
.summary .sum-pts li::before{content:"";position:absolute;left:0;top:6px;width:15px;height:15px;border-radius:50%;
 background:var(--purple) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4 10-11' fill='none' stroke='white' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/10px no-repeat}
.summary .sum-pts li b{color:var(--ink);font-weight:650}
@media(max-width:620px){.summary{padding:20px 20px 18px;border-radius:14px}}