/* AI Book visual shell. Scoped with ab- to stay isolated from Layer A. */
.ab-brand-logo{width:44px;height:44px;object-fit:contain;flex:none;border-radius:10px}
.ab-book-showcase{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(240px,1.1fr);gap:24px;align-items:center;max-width:1150px;margin:40px auto}
.ab-book-showcase figure{margin:0;min-width:0}.ab-book-showcase figure>img{display:block;width:100%;height:auto;border-radius:12px}
.ab-book-showcase figcaption{margin-top:10px;color:var(--ab-muted);font-size:12px;text-align:center}
.ab-book-access h2{font-size:25px;line-height:1.7}.ab-book-access p{font-size:14px;color:var(--ab-muted)}
.ab-book-qr{display:inline-block;padding:0;background:white}.ab-book-qr img{display:block;width:180px;height:180px}
.ab-public-url{display:block;overflow-wrap:anywhere;font-size:12px}
.ab-view-read .ab-reader .ab-related-inline{display:grid;grid-template-columns:1fr 1fr;gap:32px;padding-block:24px;border-block:1px solid var(--ab-line);margin-block:28px;background:none}
.ab-view-read .ab-reader .ab-related-inline h3{font-size:15px;margin:0 0 14px;color:var(--ab-muted)}
.ab-view-read .ab-related-inline ul{padding:0;margin:0;list-style:none}
.ab-concept-links{display:flex;flex-wrap:wrap;gap:8px;align-content:start}
.ab-view-read .ab-concept-links a{display:flex;align-items:center;min-height:44px;padding:7px 12px;border:1px solid var(--ab-line);border-radius:6px;font-size:13px;line-height:1.8;text-decoration:none}
.ab-view-read .ab-section-links a{display:flex;justify-content:space-between;gap:16px;min-height:44px;padding:10px 0;border-bottom:1px solid var(--ab-line);font-size:14px;text-decoration:none}
.ab-view-read .ab-section-reference{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;padding-top:20px;font-size:12px;color:var(--ab-muted)}
.ab-section-reference bdi{overflow-wrap:anywhere}.ab-section-reference a{color:var(--ab-accent-text);padding-block:10px;min-height:44px}
.ab-view-read .ab-reader-content [dir="auto"]{unicode-bidi:plaintext}
@media(max-width:760px){.ab-book-showcase{grid-template-columns:1fr 1fr;gap:16px}.ab-book-access{grid-column:1/-1;text-align:center}.ab-view-read .ab-reader .ab-related-inline{grid-template-columns:1fr;gap:24px}}
:root{color-scheme:dark;--ab-bg:#080b0d;--ab-panel:#101618;--ab-panel-2:#151d1e;--ab-text:#f1f8ef;--ab-muted:#a8b5aa;--ab-line:rgba(255,255,255,.12);--ab-line-strong:rgba(255,255,255,.22);--ab-accent:#a8ff46;--ab-accent-text:#baff78;--ab-ink:#0b120c;--ab-blue:#72c7ff;--ab-warm:#ffc875;--ab-radius:18px;--ab-shadow:0 24px 70px rgba(0,0,0,.3);--ab-container:1440px;--ab-reading:70ch;--ab-ease:cubic-bezier(.22,.61,.36,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{min-width:320px;margin:0;overflow-x:hidden;background:radial-gradient(circle at 80% 0,rgba(168,255,70,.065),transparent 32rem),var(--ab-bg);color:var(--ab-text);font-family:"Estedad",Tahoma,sans-serif;line-height:1.85;text-rendering:optimizeLegibility}a{color:inherit;text-decoration:none}a:hover{color:var(--ab-accent-text)}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid var(--ab-accent);outline-offset:3px}svg{width:1.1em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.ab-skip{position:fixed;top:8px;right:50%;z-index:100;padding:8px 16px;border-radius:999px;background:var(--ab-accent);color:var(--ab-ink);font-weight:800;transform:translate(50%,-160%)}.ab-skip:focus{transform:translate(50%,0)}.ab-header{position:sticky;top:0;z-index:50;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:30px;min-height:74px;padding:10px max(20px,calc((100vw - var(--ab-container))/2));border-bottom:1px solid var(--ab-line);background:rgba(8,11,13,.9);backdrop-filter:blur(18px)}.ab-brand{display:flex;align-items:center;gap:10px;min-height:48px}.ab-brand-mark{display:grid;width:44px;height:44px;place-items:center;border-radius:13px;background:var(--ab-accent);color:var(--ab-ink);font-size:20px;font-weight:900}.ab-brand>span:last-child{display:grid;line-height:1.35}.ab-brand small{color:var(--ab-muted);font-size:10px}.ab-primary{display:flex;justify-content:center;gap:4px}.ab-primary a,.ab-tools a,.ab-menu-button{display:grid;min-height:44px;padding:0 13px;place-items:center;border:0;border-radius:999px;background:transparent;color:var(--ab-muted);font-size:13px;cursor:pointer}.ab-primary a[aria-current=page]{background:rgba(168,255,70,.1);color:var(--ab-text)}.ab-tools{display:flex;align-items:center;gap:4px}.ab-tools a{border:1px solid var(--ab-line)}.ab-menu-button{display:none;border:1px solid var(--ab-line);color:var(--ab-text)}.ab-mobile-nav{position:fixed;inset:74px 14px auto;z-index:45;padding:12px;border:1px solid var(--ab-line);border-radius:16px;background:var(--ab-panel);box-shadow:var(--ab-shadow)}.ab-mobile-nav a{display:block;padding:10px 12px;border-radius:10px}.ab-main{width:min(var(--ab-container),100%);min-height:70vh;margin:auto;padding:clamp(38px,7vw,92px) clamp(18px,4vw,56px) 100px}.ab-page-hero{max-width:920px;margin:0 auto 54px;text-align:center}.ab-kicker{margin:0 0 8px;color:var(--ab-accent-text);font-size:12px;font-weight:850;letter-spacing:.035em}.ab-page-hero h1{max-width:15ch;margin:8px auto 20px;font-size:clamp(42px,7vw,84px);line-height:1.22;letter-spacing:-.04em;text-wrap:balance}.ab-lead{max-width:68ch;margin:0 auto;color:var(--ab-muted);font-size:clamp(17px,2vw,20px)}.ab-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin-top:30px}.ab-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 18px;border:1px solid var(--ab-line-strong);border-radius:999px;background:transparent;color:var(--ab-text);font-weight:700;cursor:pointer}.ab-button-primary{border-color:var(--ab-accent);background:var(--ab-accent);color:var(--ab-ink)}.ab-button:disabled{opacity:.55;cursor:not-allowed}.ab-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);max-width:920px;margin:0 auto 90px;border:1px solid var(--ab-line);border-radius:var(--ab-radius);background:var(--ab-panel);overflow:hidden}.ab-stat-grid div{display:grid;gap:1px;padding:22px;text-align:center}.ab-stat-grid div+div{border-inline-start:1px solid var(--ab-line)}.ab-stat-grid b{font-size:28px}.ab-stat-grid span{color:var(--ab-muted);font-size:12px}.ab-section{margin-top:70px}.ab-section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.ab-section-head h2,.ab-proof h2{margin:0;font-size:clamp(28px,4vw,46px);line-height:1.35}.ab-section-head>a{color:var(--ab-accent-text)}.ab-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.ab-card{display:flex;min-height:210px;padding:22px;border:1px solid var(--ab-line);border-radius:var(--ab-radius);background:var(--ab-panel);flex-direction:column;transition:border-color .2s var(--ab-ease),transform .2s var(--ab-ease),background .2s var(--ab-ease)}.ab-card:hover{border-color:rgba(168,255,70,.45);background:var(--ab-panel-2);transform:translateY(-2px)}.ab-card-meta{color:var(--ab-accent-text);font:700 11px Inter,sans-serif;direction:ltr;text-align:left}.ab-card h3{margin:18px 0 8px;font-size:20px}.ab-card p{margin:0;color:var(--ab-muted);font-size:14px}.ab-card-link{display:flex;align-items:center;gap:5px;margin-top:auto;padding-top:18px;font-size:13px}.ab-proof{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-top:80px;padding:clamp(26px,5vw,48px);border:1px solid rgba(168,255,70,.3);border-radius:28px;background:linear-gradient(120deg,rgba(168,255,70,.1),transparent 55%),var(--ab-panel)}.ab-proof>div{max-width:68ch}.ab-proof p:not(.ab-kicker){color:var(--ab-muted)}.ab-footer{display:grid;grid-template-columns:1fr auto;gap:24px;padding:40px max(20px,calc((100vw - var(--ab-container))/2));border-top:1px solid var(--ab-line);color:var(--ab-muted);font-size:12px}.ab-footer b{color:var(--ab-text)}.ab-footer p{margin:5px 0}.ab-footer nav{display:flex;gap:18px}.ab-disclaimer{grid-column:1/-1;padding-top:15px;border-top:1px solid var(--ab-line)}
/* Reader */
.ab-reader{display:grid;grid-template-columns:minmax(190px,240px) minmax(0,820px) minmax(190px,230px);justify-content:center;gap:clamp(24px,4vw,58px)}.ab-toc,.ab-related{position:sticky;top:105px;align-self:start;max-height:calc(100vh - 130px);overflow:auto}.ab-toc h2{margin:0 0 20px;font-size:19px}.ab-toc>a{display:block;padding:9px 11px;border-radius:10px;color:var(--ab-muted);font-size:13px}.ab-toc>a.is-current{background:rgba(168,255,70,.1);color:var(--ab-text)}.ab-breadcrumb{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;color:var(--ab-muted);font-size:12px}.ab-prose{min-width:0}.ab-prose .ab-page-hero{margin-bottom:24px;padding:clamp(24px,5vw,48px);border:1px solid var(--ab-line);border-radius:26px;background:linear-gradient(140deg,rgba(168,255,70,.08),transparent 40%),var(--ab-panel);text-align:start}.ab-prose .ab-page-hero h1{margin-inline:0;font-size:clamp(38px,6vw,66px)}.ab-prose .ab-page-hero .ab-lead{margin-inline:0}.ab-meta{display:grid;grid-template-columns:1.3fr 1fr .6fr;gap:10px;margin:0 0 60px}.ab-meta div{min-width:0;padding:13px;border:1px solid var(--ab-line);border-radius:12px;background:var(--ab-panel)}dt{color:var(--ab-muted);font-size:11px}dd{margin:5px 0 0;overflow-wrap:anywhere;font-size:12px}.ab-prose>section{max-width:var(--ab-reading);margin:64px auto 0}.ab-prose h2{font-size:clamp(25px,3vw,36px);line-height:1.5}.ab-prose p{font-size:17px}.ab-layer{margin:26px 0;padding:20px 22px;border:1px solid var(--ab-line);border-inline-start-width:4px;border-radius:14px;background:var(--ab-panel)}.ab-layer>span{font-size:12px;font-weight:850}.ab-layer p{margin:7px 0 0;color:var(--ab-muted)}.ab-layer-source{border-inline-start-color:var(--ab-blue)}.ab-layer-source>span{color:var(--ab-blue)}.ab-layer-editorial{border-inline-start-color:var(--ab-accent)}.ab-layer-editorial>span{color:var(--ab-accent-text)}.ab-layer-local{border-inline-start-color:var(--ab-warm)}.ab-layer-local>span{color:var(--ab-warm)}.ab-table-wrap{overflow:auto;border:1px solid var(--ab-line);border-radius:15px}.ab-table-wrap table{width:100%;min-width:650px;border-collapse:collapse;background:var(--ab-panel)}th,td{padding:13px 15px;border-bottom:1px solid var(--ab-line);text-align:start;vertical-align:top}th{color:var(--ab-accent-text);font-size:13px}td{font-size:14px}.ab-prev-next{display:flex;justify-content:space-between;gap:12px;margin-top:52px}.ab-prev-next a:not(.ab-pn){padding:10px 14px;border:1px solid var(--ab-line);border-radius:999px;font-size:13px}.ab-related{display:grid;gap:10px}.ab-related .ab-card{min-height:0;padding:16px}.ab-related .ab-card h3{margin:8px 0 4px;font-size:15px}.ab-related .ab-card-link{display:none}
/* Search, forms, content */
.ab-search,.ab-verify-form{max-width:880px;margin:0 auto;padding:24px;border:1px solid var(--ab-line);border-radius:var(--ab-radius);background:var(--ab-panel)}.ab-search>label,.ab-verify-form>label,.ab-request-form label,.ab-cite label,.ab-toolbar label,.ab-ask-form>label{display:grid;gap:7px;color:var(--ab-muted);font-size:12px}.ab-search>div,.ab-verify-form>div{display:flex;gap:9px;margin-top:7px}.ab-search input,.ab-verify-form input,.ab-request-form input,.ab-request-form select,.ab-request-form textarea,.ab-cite input,.ab-cite select,.ab-toolbar input,.ab-toolbar select,.ab-ask-form textarea{width:100%;min-height:48px;padding:10px 13px;border:1px solid var(--ab-line-strong);border-radius:12px;background:#0b1011;color:var(--ab-text)}.ab-search>div input,.ab-verify-form>div input{flex:1}.ab-search fieldset{display:flex;gap:20px;margin-top:18px;padding:0;border:0;color:var(--ab-muted);font-size:12px}.ab-search legend{margin-bottom:7px}.ab-results{display:grid;gap:12px}.ab-results .ab-card{min-height:0}.ab-filter-button{min-height:44px;padding:0 14px;border:1px solid var(--ab-line);border-radius:999px;background:transparent;color:var(--ab-text)}.ab-toolbar{display:grid;grid-template-columns:2fr 1fr;gap:12px;margin-bottom:22px;padding:17px;border:1px solid var(--ab-line);border-radius:var(--ab-radius);background:var(--ab-panel)}.ab-chat{max-width:900px;margin:auto;border:1px solid var(--ab-line);border-radius:24px;background:var(--ab-panel);overflow:hidden}.ab-chat-log{display:grid;gap:18px;padding:clamp(18px,4vw,38px)}.ab-message{max-width:82%;padding:16px 18px;border-radius:16px;background:rgba(255,255,255,.045)}.ab-message-user{margin-inline-start:auto;background:rgba(168,255,70,.1)}.ab-message p{margin:5px 0}.ab-message-answer{max-width:100%}.ab-citations{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:15px}.ab-citations .ab-card{min-height:150px;padding:16px}.ab-ask-form{padding:20px;border-top:1px solid var(--ab-line)}.ab-ask-form>div{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:10px;color:var(--ab-muted);font-size:11px}
/* Graph */
.ab-graph-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px}.ab-graph-canvas{position:relative;min-height:560px;overflow:hidden;border:1px solid var(--ab-line);border-radius:24px;background-image:linear-gradient(var(--ab-line) 1px,transparent 1px),linear-gradient(90deg,var(--ab-line) 1px,transparent 1px);background-size:32px 32px;background-color:#0b1011}.ab-graph-canvas>svg{position:absolute;inset:0;width:100%;height:100%;stroke:rgba(168,255,70,.35);stroke-width:2}.ab-node{position:absolute;z-index:2;display:grid;min-width:120px;min-height:50px;padding:10px 14px;place-items:center;border:1px solid var(--ab-line-strong);border-radius:999px;background:var(--ab-panel);box-shadow:var(--ab-shadow);font-size:13px}.ab-node-main{top:42%;right:calc(50% - 85px);min-width:170px;border-color:var(--ab-accent);background:#193011}.n1{top:16%;right:12%}.n2{top:14%;left:12%}.n3{bottom:16%;right:12%}.n4{bottom:14%;left:10%;direction:ltr}.ab-graph-controls{position:absolute;right:14px;bottom:14px;z-index:3;display:flex;gap:5px}.ab-graph-controls button{min-width:44px;min-height:44px;border:1px solid var(--ab-line);border-radius:10px;background:var(--ab-panel);color:var(--ab-text)}.ab-detail{padding:24px;border:1px solid var(--ab-line);border-radius:24px;background:var(--ab-panel)}.ab-detail h2{line-height:1.5}.ab-detail p{color:var(--ab-muted)}.ab-detail dl{display:grid;gap:10px}.ab-fallback{margin-top:14px;padding:16px;border:1px solid var(--ab-line);border-radius:14px;background:var(--ab-panel)}
/* PDF, request, cite, verify */
.ab-pdf{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:14px}.ab-pdf-toolbar{grid-column:1/-1;display:flex;align-items:center;gap:8px;padding:10px;border:1px solid var(--ab-line);border-radius:14px;background:var(--ab-panel)}.ab-pdf-toolbar span{flex:1}.ab-pdf-toolbar button,.ab-pdf-toolbar input{min-height:40px;border:1px solid var(--ab-line);border-radius:9px;background:#0b1011;color:var(--ab-text)}.ab-pdf-toolbar input{width:55px;text-align:center}.ab-pdf-stage{display:grid;min-height:720px;padding:35px;place-items:center;border:1px solid var(--ab-line);border-radius:20px;background:#181d1f}.ab-paper{display:grid;width:min(540px,100%);aspect-ratio:1/1.414;padding:12%;place-content:center;border-radius:3px;background:#f4f0e7;color:#152015;text-align:center;box-shadow:0 26px 60px rgba(0,0,0,.45)}.ab-paper h2{font-size:clamp(26px,4vw,46px);line-height:1.5}.ab-paper span{margin-top:50px;color:#657063;font-size:12px}.ab-pdf>aside,.ab-process{padding:22px;border:1px solid var(--ab-line);border-radius:20px;background:var(--ab-panel)}.ab-pdf>aside h2{font-size:20px}.ab-pdf>aside dl{display:grid;gap:13px}.ab-form-layout,.ab-cite{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px;max-width:1050px;margin:auto}.ab-request-form,.ab-cite>form,.ab-cite>section{padding:24px;border:1px solid var(--ab-line);border-radius:20px;background:var(--ab-panel)}.ab-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.ab-span-2{grid-column:1/-1}.ab-consent{display:flex!important;align-items:start;grid-template-columns:auto 1fr!important;margin:18px 0}.ab-consent input{width:auto}.ab-process ol{display:grid;gap:10px;padding:0;list-style:none;counter-reset:step}.ab-process li{display:flex;align-items:center;gap:10px;color:var(--ab-muted);counter-increment:step}.ab-process li:before{display:grid;width:30px;height:30px;place-items:center;border:1px solid var(--ab-line);border-radius:50%;content:counter(step)}.ab-process li.is-active{color:var(--ab-text)}.ab-process li.is-active:before{border-color:var(--ab-accent);background:var(--ab-accent);color:var(--ab-ink)}.ab-cite>form{display:grid;align-content:start;gap:14px}.ab-cite blockquote{margin:15px 0;padding:18px;border-inline-start:3px solid var(--ab-accent);background:rgba(168,255,70,.06)}.ab-code{display:flex;gap:8px;padding:10px;border:1px solid var(--ab-line);border-radius:12px;background:#0b1011}.ab-code code{min-width:0;overflow-wrap:anywhere}.ab-code button{flex:none;border:0;border-radius:8px;background:var(--ab-accent);color:var(--ab-ink)}.ab-verification{max-width:880px;margin:20px auto;padding:24px;border:1px solid rgba(168,255,70,.35);border-radius:20px;background:var(--ab-panel)}.ab-status{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--ab-line)}.ab-status b{color:var(--ab-accent-text);font:800 13px Inter,sans-serif}.ab-verification dl{display:grid;gap:0}.ab-verification dl div{display:grid;grid-template-columns:170px 1fr;gap:15px;padding:13px 0;border-bottom:1px solid var(--ab-line)}
@media(max-width:1100px){.ab-reader{grid-template-columns:minmax(180px,220px) minmax(0,1fr)}.ab-related{display:none}.ab-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ab-primary{display:none}.ab-header{grid-template-columns:1fr auto}.ab-tools a{display:none}.ab-menu-button{display:grid}.ab-graph-layout,.ab-pdf,.ab-form-layout,.ab-cite{grid-template-columns:1fr}.ab-pdf>aside{grid-row:auto}.ab-pdf-stage{min-height:620px}}
@media(max-width:760px){.ab-header{padding-inline:14px}.ab-brand small{display:none}.ab-main{padding-top:34px}.ab-page-hero{margin-bottom:35px}.ab-page-hero h1{font-size:clamp(36px,11vw,54px)}.ab-stat-grid{grid-template-columns:1fr 1fr;margin-bottom:60px}.ab-stat-grid div:nth-child(3){border-inline-start:0;border-top:1px solid var(--ab-line)}.ab-stat-grid div:nth-child(4){border-top:1px solid var(--ab-line)}.ab-card-grid{grid-template-columns:1fr}.ab-proof{align-items:start;flex-direction:column}.ab-section-head{align-items:start;flex-direction:column}.ab-footer{grid-template-columns:1fr}.ab-footer nav{flex-wrap:wrap}.ab-reader{display:block}.ab-toc{position:static;display:flex;max-width:100%;gap:6px;margin-bottom:20px;overflow:auto}.ab-toc .ab-kicker,.ab-toc h2{display:none}.ab-toc>a{flex:none;border:1px solid var(--ab-line);white-space:nowrap}.ab-prose .ab-page-hero{padding:22px 18px}.ab-meta{grid-template-columns:1fr}.ab-prev-next{flex-direction:column}.ab-search>div,.ab-verify-form>div{align-items:stretch;flex-direction:column}.ab-search fieldset{align-items:start;flex-direction:column}.ab-toolbar{grid-template-columns:1fr}.ab-citations{grid-template-columns:1fr}.ab-message{max-width:100%}.ab-ask-form>div{align-items:start;flex-direction:column}.ab-graph-canvas{min-height:480px}.ab-node{min-width:94px;font-size:11px}.ab-node-main{right:calc(50% - 70px);min-width:140px}.ab-pdf-toolbar{overflow:auto}.ab-pdf-stage{min-height:500px;padding:16px}.ab-form-grid{grid-template-columns:1fr}.ab-span-2{grid-column:auto}.ab-verification dl div{grid-template-columns:1fr}.ab-status{align-items:start;flex-direction:column}.ab-code{align-items:stretch;flex-direction:column}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.ab-card{transition:none}.ab-card:hover{transform:none}}
/* Search-phase additive rule: highlighted query matches inside result cards,
   using the frozen design tokens (same accent/ink pair as .ab-brand-mark). */
.ab-results mark{background:var(--ab-accent);color:var(--ab-ink);border-radius:4px;padding:0 3px}
/* Catalog-phase additive rules: glossary term grid (ai-book/glossary index),
   using frozen design tokens only (panel, line, accent, radius). */
.ab-term-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}
.ab-term-list a{display:flex;align-items:baseline;justify-content:space-between;gap:10px;min-height:48px;padding:11px 14px;border:1px solid var(--ab-line);border-radius:12px;background:var(--ab-panel);transition:border-color .2s var(--ab-ease),background .2s var(--ab-ease)}
.ab-term-list a:hover{border-color:rgba(168,255,70,.45);background:var(--ab-panel-2)}
.ab-term-list b{font-size:14px;font-weight:750}
.ab-term-list bdi{color:var(--ab-muted);font:700 11px Inter,sans-serif;direction:ltr;text-align:left}
@media(max-width:760px){.ab-term-list{grid-template-columns:1fr}}
/* Graph-phase additive rules: reader "Related Concepts/Sections" inline block
   and graph node link cards, using frozen design tokens only. */
.ab-related-inline{display:grid;gap:8px;margin-top:18px;padding:14px 16px;border:1px solid var(--ab-line);border-radius:14px;background:var(--ab-panel)}
.ab-related-inline>div>span{color:var(--ab-accent-text);font-size:12px;font-weight:850}
.ab-related-inline p{margin:4px 0 0;color:var(--ab-muted);font-size:14px}
.ab-related-inline a{border-bottom:1px solid var(--ab-line-strong)}
.ab-graph-canvas .ab-node{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ab-pdf-embed{display:block;width:100%;min-height:500px;height:72vh;border:1px solid var(--ab-line);border-radius:var(--ab-radius);background:var(--ab-panel)}
.ab-page-hero h1{overflow-wrap:anywhere}
/* Shared Kohandezh site chrome. The book retains its frozen internal visual
   system while the outer site menu/footer use the active theme's canonical
   components. The book is intentionally dark-only, so saved light-mode state
   must not turn the shared chrome into a mismatched light strip. */
.kbk-ai-book-page .kdcv-nav{background:rgba(8,12,10,.88);border-block-end-color:rgba(235,255,223,.1);color:var(--ab-text)}
.kbk-ai-book-page .kdcv-nav a:hover{color:var(--ab-accent);background:rgba(168,255,70,.1);border-color:rgba(168,255,70,.35)}
.kbk-ai-book-page .ab-site-footer{padding:0 max(20px,calc((100vw - var(--ab-container))/2));border-top:1px solid var(--ab-line);background:var(--ab-bg)}
.kbk-ai-book-page .ab-site-footer .kdcv-foot{color:rgba(255,255,255,.84)}

/* Site chrome is a quiet utility layer above the product navigation. */
.kbk-ai-book-page>.kdcv-nav{
  flex-wrap:nowrap;
  gap:2px;
  min-height:50px;
  padding:3px max(14px,calc((100vw - var(--ab-container))/2));
  overflow-x:auto;
  border-block-end:1px solid var(--ab-line);
  background:#080c0a;
  scrollbar-width:none;
}
.kbk-ai-book-page>.kdcv-nav::-webkit-scrollbar{display:none}
.kbk-ai-book-page>.kdcv-nav a{min-height:42px;padding-inline:10px;font-size:12px}
.kbk-ai-book-page>.kdcv-nav-home{position:sticky;inset-inline-start:0;z-index:1;padding-inline:0 16px;background:#080c0a}
.kbk-ai-book-page>.kdcv-nav [data-kdcv-nav-key="aiGovernance"],
.kbk-ai-book-page>.kdcv-nav [data-kdcv-nav-key="psn"],
.kbk-ai-book-page>.kdcv-nav [data-kdcv-nav-key="privacy"],
.kbk-ai-book-page>.kdcv-nav [data-kdcv-nav-key="terms"]{display:none}

.kbk-ai-book-page .ab-header{box-shadow:0 10px 30px rgba(0,0,0,.18)}
.kbk-ai-book-page .ab-mobile-nav{
  inset:88px 14px auto auto;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:5px;
  width:min(430px,calc(100vw - 28px));
  padding:10px;
}
.kbk-ai-book-page .ab-mobile-nav[hidden]{display:none}
.kbk-ai-book-page .ab-mobile-nav a{display:flex;align-items:center;min-height:46px;padding:8px 12px;border:1px solid transparent}
.kbk-ai-book-page .ab-mobile-nav a:hover{border-color:var(--ab-line-strong);background:var(--ab-panel-2)}
.kbk-ai-book-page .ab-mobile-nav a[aria-current="page"]{border-color:rgba(168,255,70,.42);background:rgba(168,255,70,.1);color:var(--ab-accent-text);font-weight:750}

@media(max-width:760px){
  .kbk-ai-book-page>.kdcv-nav{padding-inline:10px}
  .kbk-ai-book-page>.kdcv-nav a{padding-inline:9px}
  .kbk-ai-book-page>.kdcv-nav-home{padding-inline:0 12px}
  .kbk-ai-book-page>.kdcv-nav [data-kdcv-nav-key="portfolio"],
  .kbk-ai-book-page>.kdcv-nav [data-kdcv-nav-key="certificates"]{display:none}
  .kbk-ai-book-page .ab-mobile-nav{grid-template-columns:1fr}
}

/* Reader revision 6: full-bleed book surface and accessible light mode. */
.ab-theme-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:7px;
  min-height:44px;
  padding:0 12px;
  border:1px solid var(--ab-line);
  border-radius:999px;
  background:transparent;
  color:var(--ab-text);
  font-size:12px;
  cursor:pointer;
}
.ab-theme-toggle:hover{border-color:var(--ab-line-strong);background:var(--ab-panel-2)}
.ab-theme-icon{font-size:17px;line-height:1}

.ab-view-read{background:var(--ab-bg)}
.ab-view-read .ab-main{
  width:100%;
  max-width:none;
  padding:clamp(24px,3vw,42px) clamp(20px,4vw,64px) 110px;
}
.ab-view-read .ab-breadcrumb{width:min(1120px,100%);margin-inline:auto}
.ab-view-read .ab-reader{width:min(1120px,100%);margin-inline:auto}
.ab-view-read .ab-reader .ab-reader-hero{
  margin-bottom:34px;
  padding:8px 0 30px;
  border:0;
  border-bottom:1px solid var(--ab-line);
  border-radius:0;
  background:transparent;
}
.ab-view-read .ab-reader .ab-reader-hero h1{max-width:22ch}
.ab-view-read .ab-reader .ab-related-inline{
  padding:20px 0;
  border:0;
  border-block:1px solid var(--ab-line);
  border-radius:0;
  background:transparent;
}

html[data-ab-theme="light"]{
  color-scheme:light;
  --ab-bg:#f7f4ec;
  --ab-panel:#fffdf8;
  --ab-panel-2:#eee9de;
  --ab-text:#182019;
  --ab-muted:#5b685d;
  --ab-line:rgba(24,32,25,.14);
  --ab-line-strong:rgba(24,32,25,.28);
  --ab-accent:#83c92f;
  --ab-accent-text:#416d08;
  --ab-ink:#0b120c;
  --ab-blue:#176f9d;
  --ab-warm:#875a0d;
  --ab-shadow:0 22px 60px rgba(45,52,42,.14);
}
html[data-ab-theme="light"] body{background:radial-gradient(circle at 80% 0,rgba(104,164,31,.08),transparent 32rem),var(--ab-bg)}
html[data-ab-theme="light"] .ab-view-read{background:#fbf9f3}
html[data-ab-theme="light"] .ab-header{background:rgba(247,244,236,.92)}
html[data-ab-theme="light"] .ab-mobile-nav,
html[data-ab-theme="light"] .ab-card,
html[data-ab-theme="light"] .ab-detail,
html[data-ab-theme="light"] .ab-fallback{background:var(--ab-panel)}
html[data-ab-theme="light"] .ab-search input,
html[data-ab-theme="light"] .ab-verify-form input,
html[data-ab-theme="light"] .ab-request-form input,
html[data-ab-theme="light"] .ab-request-form select,
html[data-ab-theme="light"] .ab-request-form textarea,
html[data-ab-theme="light"] .ab-cite input,
html[data-ab-theme="light"] .ab-cite select,
html[data-ab-theme="light"] .ab-toolbar input,
html[data-ab-theme="light"] .ab-toolbar select,
html[data-ab-theme="light"] .ab-ask-form textarea,
html[data-ab-theme="light"] .ab-pdf-toolbar button,
html[data-ab-theme="light"] .ab-pdf-toolbar input,
html[data-ab-theme="light"] .ab-code{background:#fffdf8}
html[data-ab-theme="light"] .ab-graph-canvas{background-color:#f4f0e7}
html[data-ab-theme="light"] .ab-node-main{background:#e4f3d3}
html[data-ab-theme="light"] .kbk-ai-book-page>.kdcv-nav,
html[data-ab-theme="light"] .kbk-ai-book-page>.kdcv-nav-home{background:#efebe1;color:var(--ab-text)}
html[data-ab-theme="light"] .kbk-ai-book-page .kdcv-nav{border-block-end-color:rgba(24,32,25,.12);color:var(--ab-text)}
html[data-ab-theme="light"] .kbk-ai-book-page .ab-site-footer{background:#efebe1}
html[data-ab-theme="light"] .kbk-ai-book-page .ab-site-footer .kdcv-foot{color:#384139}

@media(max-width:1100px){
  .ab-view-read .ab-reader-index{
    border-inline:0;
    border-radius:0;
    background:transparent;
  }
}

@media(max-width:520px){
  .ab-theme-toggle{width:44px;padding:0}
  .ab-theme-label{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
  .ab-view-read .ab-main{padding-inline:18px}
  .ab-view-read .ab-reader .ab-reader-hero{padding-inline:0}
}

/* Reader revision 4: focused long-form reading without changing source data. */
.ab-reader{
  grid-template-columns:minmax(200px,240px) minmax(0,760px);
  justify-content:center;
  gap:clamp(32px,5vw,72px);
}
.ab-reader-index{display:none}
.ab-reader .ab-prose{width:100%;max-width:760px;margin-inline:auto}
.ab-reader .ab-reader-hero{
  margin:0 0 34px;
  padding:clamp(24px,3vw,34px);
  border-radius:20px;
}
.ab-reader .ab-reader-hero h1{
  max-width:20ch;
  margin-block:5px 12px;
  font-size:clamp(36px,4.2vw,48px);
  line-height:1.38;
}
.ab-reader .ab-reader-hero .ab-lead{font-size:16px}
.ab-reader .ab-prose>section{max-width:72ch;margin-top:46px;scroll-margin-top:118px}
.ab-reader .ab-prose>section>h2{margin:0 0 20px;font-size:clamp(25px,3vw,34px);line-height:1.55}
.ab-reader .ab-layer{
  margin:0;
  padding:5px 20px 5px 0;
  border:0;
  border-inline-start:3px solid var(--ab-line-strong);
  border-radius:0;
  background:transparent;
}
.ab-reader .ab-layer-source{border-inline-start-color:var(--ab-blue)}
.ab-reader .ab-layer-editorial{border-inline-start-color:var(--ab-accent)}
.ab-reader .ab-layer-local{border-inline-start-color:var(--ab-warm)}
.ab-reader .ab-layer>span{display:inline-block;margin-bottom:12px}
.ab-reader-content,.ab-reader .ab-reader-content p{color:var(--ab-text)}
.ab-reader-content p,.ab-reader-content li{font-size:18px;line-height:2.05}
.ab-reader-content p{margin:0 0 1.35em}
.ab-reader-content ul,.ab-reader-content ol{margin:0 0 1.5em;padding-inline-start:1.6em}
.ab-reader-content li+li{margin-top:.45em}
.ab-reader-content h3{margin:2.15em 0 .75em;font-size:26px;line-height:1.55}
.ab-reader-content h4{margin:1.9em 0 .65em;font-size:22px;line-height:1.65}
.ab-reader-content h5{margin:1.7em 0 .6em;font-size:19px;line-height:1.7}
.ab-reader-content blockquote{margin:1.5em 0;padding:4px 18px;border-inline-start:3px solid var(--ab-accent);color:var(--ab-muted)}
.ab-reader-content code{padding:1px 6px;border-radius:6px;background:var(--ab-panel-2);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.88em;direction:ltr}
.ab-reader-content .ab-table-wrap{margin:1.75em 0}
.ab-reader-content .ab-source-marker{padding:10px 14px;border:1px dashed var(--ab-line-strong);border-radius:10px;color:var(--ab-muted);font-size:13px}
.ab-reader .ab-card-meta{margin-top:18px}
.ab-reader .ab-related-inline{margin-top:28px}

@media(max-width:1100px){
  .ab-reader{display:block;max-width:760px;margin-inline:auto}
  .ab-reader>.ab-toc{display:none}
  .ab-reader-index{display:block;margin:0 0 18px;border:1px solid var(--ab-line);border-radius:14px;background:var(--ab-panel)}
  .ab-reader-index summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:50px;padding:10px 16px;color:var(--ab-text);font-weight:800;cursor:pointer;list-style:none}
  .ab-reader-index summary::-webkit-details-marker{display:none}
  .ab-reader-index summary:after{content:"+";margin-inline-start:auto;color:var(--ab-accent-text);font-size:20px}
  .ab-reader-index[open] summary:after{content:"−"}
  .ab-reader-index summary bdi{color:var(--ab-muted);font:700 11px Inter,sans-serif}
  .ab-reader-index nav{display:grid;max-height:55vh;padding:6px 10px 12px;overflow:auto;border-top:1px solid var(--ab-line)}
  .ab-reader-index nav a{min-height:44px;padding:10px 12px;border-radius:9px;color:var(--ab-muted);font-size:13px}
  .ab-reader-index nav a.is-current{background:rgba(168,255,70,.1);color:var(--ab-text)}
}

@media(max-width:760px){
  .ab-reader .ab-reader-hero{margin-bottom:28px;padding:20px 17px}
  .ab-reader .ab-reader-hero h1{font-size:clamp(29px,9vw,38px);line-height:1.45}
  .ab-reader .ab-reader-hero .ab-lead{font-size:15px}
  .ab-reader .ab-prose>section{margin-top:38px;scroll-margin-top:105px}
  .ab-reader .ab-prose>section>h2{font-size:25px}
  .ab-reader .ab-layer{padding-inline:15px 0}
  .ab-reader-content p,.ab-reader-content li{font-size:16.5px;line-height:2}
  .ab-reader-content h3{font-size:23px}
  .ab-reader-content h4{font-size:20px}
  .ab-reader-content h5{font-size:18px}
  .ab-reader-content .ab-table-wrap table{min-width:560px}
}

/* Reading workspace; enhancement controls only appear when JS is available. */
.ab-reading-tools{position:sticky;top:74px;z-index:49;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px 12px;padding:8px 16px;background:var(--ab-bg);border-bottom:1px solid var(--ab-line);font-size:12px}
.ab-reading-tools button,.ab-reading-tools select{min-height:44px;padding:6px 10px;border:1px solid var(--ab-line);border-radius:6px;background:var(--ab-bg);color:var(--ab-text);cursor:pointer}
.ab-reading-tools label,.ab-reading-size{display:flex;align-items:center;gap:6px}
.ab-reading-size{direction:ltr}.ab-reading-size output{min-width:24px;text-align:center}
.ab-reading-tools button:disabled{opacity:.4;cursor:default}
.ab-reading-focus>.ab-header,.ab-reading-focus>.ab-footer,.ab-reading-focus>.ab-site-footer,.ab-reading-focus>.kdcv-nav,.ab-reading-focus>.ab-mobile-nav{display:none!important}
.ab-reading-focus .ab-breadcrumb,.ab-reading-focus .ab-reader>.ab-toc{display:none!important}
.ab-reading-focus .ab-reading-tools{top:0}
.ab-view-read.ab-reading-focus .ab-reader{display:block;width:100%;max-width:none}
.ab-view-read.ab-reading-focus .ab-reader .ab-prose{max-width:760px;margin-inline:auto}
.ab-view-read.ab-reading-focus.ab-reading-wide .ab-reader .ab-prose{max-width:1100px}
.ab-view-read.ab-reader-enhanced.ab-reading-wide:not(.ab-reading-focus) .ab-reader{width:100%;max-width:none;grid-template-columns:280px minmax(0,1100px)}
.ab-view-read.ab-reader-enhanced.ab-reading-wide:not(.ab-reading-focus) .ab-reader .ab-prose{max-width:1100px}
.ab-view-read.ab-reader-enhanced .ab-reader .ab-reader-content p,.ab-view-read.ab-reader-enhanced .ab-reader .ab-reader-content li{font-size:var(--ab-reader-size,18px);line-height:var(--ab-reader-line,2)}
.ab-view-read.ab-reader-enhanced .ab-reader .ab-prose>section{scroll-margin-top:calc(var(--ab-reader-toolbar-height,70px) + 16px)}
.ab-view-read.ab-reading-focus .ab-reader .ab-prose>section{scroll-margin-top:max(0px,calc(var(--ab-reader-toolbar-height,70px) - 80px))}
.ab-reader-enhanced .ab-reader-index{display:none!important}
.ab-reader-enhanced .ab-reader-index[open]{display:block!important;position:fixed;z-index:55;inset-inline-start:16px;top:calc(var(--ab-reader-toolbar-height,70px) + 80px);width:min(360px,calc(100vw - 32px));max-height:65vh;overflow:auto;margin:0;padding:12px;background:var(--ab-bg);border:1px solid var(--ab-line);border-radius:6px;box-shadow:var(--ab-shadow)}
.ab-reading-focus .ab-reader-index[open]{top:calc(var(--ab-reader-toolbar-height,70px) + 8px)}
.ab-reader-enhanced .ab-reader-index summary{display:none}
.ab-reader-enhanced .ab-reader-index nav{display:grid}
.ab-reader-enhanced .ab-reader-index a{display:block;white-space:normal}
html[data-ab-theme] .ab-view-read.ab-reading-paper{--ab-bg:#f6f0e3;--ab-panel:#f6f0e3;--ab-panel-2:#eee5d3;--ab-text:#302d26;--ab-muted:#655e50;--ab-line:#d9d0bd;background:var(--ab-bg)}
@media(max-width:760px){.ab-reading-tools{gap:4px;padding:6px 8px}.ab-reading-tools label{font-size:11px}.ab-reading-tools button,.ab-reading-tools select{padding-inline:8px}}

/* Owner-requested Docs-style Reader, revision 7. Keep book content unchanged. */
.ab-view-read{--ab-accent:#5fed83;--ab-accent-text:#5fed83;--ab-docs-active:rgba(95,237,131,.09)}
html[data-ab-theme="light"] .ab-view-read{--ab-accent:#1a7f37;--ab-accent-text:#1a7f37;--ab-docs-active:rgba(26,127,55,.08);background:#fff}
.ab-view-read .ab-reader{grid-template-columns:280px minmax(0,760px);gap:48px;width:min(1200px,100%)}
.ab-view-read .ab-breadcrumb{width:min(1200px,100%);padding-bottom:18px;border-bottom:1px solid var(--ab-line)}
.ab-view-read .ab-reader>.ab-toc{padding-inline-end:24px;border-inline-end:1px solid var(--ab-line);scrollbar-width:thin;overscroll-behavior:contain}
.ab-view-read .ab-toc h2{font-size:17px;line-height:1.8;padding-bottom:16px;border-bottom:1px solid var(--ab-line)}
.ab-view-read .ab-toc>a,.ab-view-read .ab-reader-index nav a{position:relative;min-height:44px;padding:10px 16px;margin-block:3px;border-radius:5px;font-size:13px;line-height:1.8}
.ab-view-read .ab-toc>a:hover,.ab-view-read .ab-reader-index nav a:hover{background:var(--ab-docs-active);color:var(--ab-text)}
.ab-view-read .ab-toc>a.is-current,.ab-view-read .ab-reader-index nav a.is-current{background:var(--ab-docs-active);color:var(--ab-text);font-weight:700}
.ab-view-read .ab-toc>a.is-current:before,.ab-view-read .ab-reader-index nav a.is-current:before{content:"";position:absolute;inset-inline-start:0;inset-block:10px;width:3px;border-radius:2px;background:var(--ab-accent)}
.ab-view-read .ab-reader .ab-reader-hero{padding:0 0 28px;margin-bottom:36px}
.ab-view-read .ab-reader .ab-reader-hero h1{max-width:none;font-size:36px;line-height:1.55;font-weight:750}
.ab-view-read .ab-reader .ab-prose>section{max-width:100%;margin-top:44px;scroll-margin-top:16px}
.ab-view-read .ab-reader .ab-prose>section>h2{font-size:27px;line-height:1.65;margin:0 0 24px;padding-bottom:14px;border-bottom:1px solid var(--ab-line)}
.ab-view-read .ab-reader .ab-layer{border:0;padding:0;margin:20px 0;background:none;border-radius:0;box-shadow:none}
.ab-view-read .ab-reader .ab-layer>span{font-size:12px;color:var(--ab-muted);margin-bottom:18px}
.ab-view-read .ab-reader .ab-reader-content p,.ab-view-read .ab-reader .ab-reader-content li{font-size:17px;line-height:1.95;font-weight:400;text-align:start;overflow-wrap:anywhere}
.ab-view-read .ab-reader .ab-reader-content p{margin:0 0 20px}
.ab-view-read .ab-reader-content ul,.ab-view-read .ab-reader-content ol{margin:0 0 20px}
.ab-view-read .ab-reader-content ul+ul,.ab-view-read .ab-reader-content ol+ol{margin-top:-12px}
.ab-view-read .ab-reader-content h3{font-size:24px;margin:32px 0 16px}
.ab-view-read .ab-reader-content h4{font-size:21px;margin:28px 0 14px}
.ab-view-read .ab-reader-content h5{font-size:18px;margin:24px 0 12px}
.ab-view-read .ab-reader .ab-related-inline{font-size:14px}
.ab-view-read .ab-reader a:focus-visible,.ab-view-read .ab-reader summary:focus-visible{outline:2px solid var(--ab-accent);outline-offset:3px}
@media(max-width:1100px){
  .ab-view-read .ab-reader{display:block;max-width:760px}
  .ab-view-read .ab-reader-index{border-radius:5px;background:transparent}
}
@media(max-width:760px){
  .ab-view-read .ab-reader .ab-reader-hero h1{font-size:29px}
  .ab-view-read .ab-reader .ab-prose>section>h2{font-size:24px}
  .ab-view-read .ab-reader .ab-reader-content p,.ab-view-read .ab-reader .ab-reader-content li{font-size:16px;line-height:1.95}
}

/* Library shelf (book home). Surface/ink pairs: the live badge is the accent SURFACE
   with --ab-ink text; the soon badge uses --ab-warm as INK on the dark panel. */
.ab-shelf-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.ab-book{display:grid;grid-template-columns:minmax(120px,38%) 1fr;gap:22px;align-items:start;padding:20px;border:1px solid var(--ab-line);border-radius:var(--ab-radius);background:var(--ab-panel)}.ab-book-cover{display:block;width:100%;height:auto;aspect-ratio:5/8;object-fit:cover;border-radius:10px;background:var(--ab-panel-2);box-shadow:var(--ab-shadow)}.ab-book-body{display:flex;min-width:0;flex-direction:column;gap:8px;height:100%}.ab-book-body h3{margin:4px 0 0;font-size:clamp(19px,2vw,23px);line-height:1.5}.ab-book-sub{margin:0}.ab-book-meta,.ab-book-note{margin:0;color:var(--ab-muted);font-size:14px}.ab-book-status{align-self:flex-start;padding:3px 12px;border-radius:999px;font-size:12px;font-weight:800}.ab-book-status-live{background:var(--ab-accent);color:var(--ab-ink)}.ab-book-status-soon{border:1px solid var(--ab-warm);color:var(--ab-warm)}.ab-book .ab-button{align-self:flex-start;margin-top:auto}
@media (max-width:900px){.ab-shelf-grid{grid-template-columns:1fr}}@media (max-width:420px){.ab-book{grid-template-columns:110px 1fr;gap:14px;padding:14px}}
.ab-book-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}.ab-book-detail{scroll-margin-top:96px}.ab-book-lead{max-width:68ch;margin:-6px 0 22px;color:var(--ab-muted)}.ab-book-detail .ab-stat-grid{max-width:none;margin:0 0 14px}

/* Verification: a miss is not a success, and hashes wrap instead of overflowing. */
.ab-status-miss b{color:var(--ab-muted)}.ab-verification dd{min-width:0;overflow-wrap:anywhere}.ab-verify-artifacts{max-width:880px;margin-inline:auto}.ab-verify-hash{font:12px/1.6 Inter,ui-monospace,monospace;overflow-wrap:anywhere}

/* Reader revision 8 (plugin 0.5.0): readable measure, one-row toolbar,
   paginated chapters, stacked tables, softer dark ink, compact tool heroes,
   print. Overrides earlier revisions by order; tokens only, no new fonts. */
:root:not([data-ab-theme="light"]){--ab-bg:#0e1213;--ab-panel:#141a1c;--ab-panel-2:#192123;--ab-text:#d4dbd1;--ab-muted:#a8b5aa}
.ab-visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.ab-card-meta.ab-meta-fa{direction:rtl;text-align:start;font-family:"Estedad",Tahoma,sans-serif}

/* Measure: ~65–75 Persian characters per line at the chosen text size. */
.ab-view-read{--ab-measure:calc(var(--ab-reader-size,18px) * 35)}
.ab-view-read .ab-reader{grid-template-columns:260px minmax(0,var(--ab-measure));gap:56px;width:min(1180px,100%)}
.ab-view-read .ab-reader .ab-prose{max-width:var(--ab-measure)}
.ab-view-read.ab-reading-focus .ab-reader .ab-prose{max-width:var(--ab-measure)}
.ab-view-read.ab-reader-enhanced.ab-reading-wide:not(.ab-reading-focus) .ab-reader{grid-template-columns:260px minmax(0,1000px)}
.ab-view-read.ab-reader-enhanced.ab-reading-wide .ab-reader .ab-prose{max-width:1000px}
.ab-view-read .ab-breadcrumb{width:min(1180px,100%)}
@media(max-width:1100px){.ab-view-read .ab-reader{display:block;max-width:var(--ab-measure)}.ab-view-read.ab-reading-wide .ab-reader{max-width:1000px}}

/* Chapter sidebar: visible by default on wide screens, scrolls on its own. */
.ab-view-read .ab-reader>.ab-toc{top:calc(74px + var(--ab-reader-toolbar-height,50px) + 12px);max-height:calc(100vh - 74px - var(--ab-reader-toolbar-height,50px) - 28px)}
.ab-view-read .ab-toc-page,.ab-reader-index .ab-toc-page{margin:14px 0 4px;padding-inline-start:16px;color:var(--ab-muted);font-size:13px;font-weight:700}
.ab-view-read .ab-toc .ab-kicker{font-size:13px}
.ab-reader-index summary .ab-reader-index-loc{color:var(--ab-muted);font-size:13px;font-weight:600}

/* One-row reading toolbar with an «Aa» panel; hides while reading down. */
.ab-view-read .ab-reading-tools{position:sticky;top:74px;z-index:49;display:flex;flex-wrap:nowrap;align-items:center;justify-content:flex-start;gap:8px;min-height:50px;padding:3px max(16px,calc((100vw - 1180px)/2));border-bottom:1px solid var(--ab-line);background:var(--ab-bg);font-size:13px;transition:transform .22s var(--ab-ease),opacity .22s var(--ab-ease)}
.ab-reading-tools .ab-tool,.ab-reading-panel button,.ab-reading-panel select{min-height:44px;padding:4px 12px;border:1px solid var(--ab-line);border-radius:8px;background:var(--ab-bg);color:var(--ab-text);font-size:14px;cursor:pointer}
.ab-reading-tools .ab-tool-aa{min-width:48px;font:700 16px Inter,"Estedad",sans-serif}
.ab-reading-tools .ab-tool[aria-pressed="true"],.ab-reading-panel [aria-pressed="true"]{border-color:var(--ab-accent);background:var(--ab-docs-active,rgba(95,237,131,.09));font-weight:700}
.ab-reading-title{flex:1;min-width:0;margin:0;overflow:hidden;color:var(--ab-muted);font-size:13px;white-space:nowrap;text-overflow:ellipsis}
.ab-progress{position:absolute;inset-inline:0;bottom:-1px;height:3px;pointer-events:none}
.ab-progress span{display:block;height:100%;background:var(--ab-accent);transform:scaleX(0);transform-origin:100% 50%}
.ab-reading-panel{position:absolute;top:calc(100% + 6px);inset-inline-end:max(12px,calc((100vw - 1180px)/2));z-index:60;display:grid;gap:10px;width:min(360px,calc(100vw - 24px));padding:14px;border:1px solid var(--ab-line-strong);border-radius:12px;background:var(--ab-panel);box-shadow:var(--ab-shadow)}
.ab-reading-panel[hidden]{display:none}
.ab-panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0;color:var(--ab-text);font-size:14px}
.ab-panel-label{color:var(--ab-muted);font-size:13px}
.ab-panel-end{justify-content:flex-end}
.ab-segment{display:flex;gap:6px}
.ab-reading-panel .ab-reading-size{display:flex;align-items:center;gap:6px;direction:ltr}
.ab-reading-panel output{min-width:28px;text-align:center}
.ab-reading-panel button:disabled{opacity:.45;cursor:default}
.ab-view-read.ab-reading-focus .ab-reading-tools{top:0}
.ab-reading-tools .ab-panel-row{font-size:14px}
body.ab-tools-hidden .ab-reading-tools{transform:translateY(-110%);opacity:0;pointer-events:none}
@media(min-width:1101px){body.ab-view-read:not(.ab-reading-focus) .ab-reading-tools [data-reader="index"]{display:none}}
/* «فهرست کتاب» in the reading bar: only where the header is not sticky. */
.ab-reading-tools .ab-tool-menu{display:none}
/* Phones: ONE sticky bar. The site header scrolls away with the page; the
   reading bar (≤56px) stays, hides while reading down, returns on scroll up,
   and carries the book menu so nothing is lost with the header. */
@media(max-width:760px){
  .ab-view-read .ab-header{position:relative;top:auto}
  .ab-view-read .ab-reading-tools{top:0;gap:6px;min-height:50px;max-height:56px;padding:2px 10px}
  .ab-reading-tools .ab-tool-wide{display:none}
  .ab-view-read:not(.ab-reading-focus) .ab-reading-tools .ab-tool-menu{display:inline-flex;align-items:center}
  .ab-reading-tools .ab-tool{padding-inline:10px;font-size:13px;white-space:nowrap}
  body.ab-tools-hidden .ab-reading-tools{transform:translateY(-110%)}
  .ab-view-read.ab-reader-enhanced .ab-reader .ab-prose>section,.ab-view-read .ab-reader-content :is(h3,h4,h5,h6)[id],.ab-view-read .ab-reader-content .ab-footnotes li,.ab-view-read .ab-reader-content sup.ab-fnref a{scroll-margin-top:calc(var(--ab-reader-toolbar-height,52px) + 12px)}
  .ab-reader-enhanced .ab-reader-index[open]{top:calc(var(--ab-reader-toolbar-height,52px) + 8px)}
}
.ab-view-read.ab-reader-enhanced .ab-reader .ab-prose>section{scroll-margin-top:calc(74px + var(--ab-reader-toolbar-height,50px) + 16px)}
.ab-view-read.ab-reading-focus .ab-reader .ab-prose>section{scroll-margin-top:calc(var(--ab-reader-toolbar-height,50px) + 16px)}
.ab-reader-enhanced .ab-reader-index[open]{top:calc(74px + var(--ab-reader-toolbar-height,50px) + 8px)}
.ab-reading-focus .ab-reader-index[open]{top:calc(var(--ab-reader-toolbar-height,50px) + 8px)}

/* Pages inside a long chapter and full-width previous/next cards. */
.ab-pager{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:28px 0}
.ab-pager-label{margin-inline-end:6px;color:var(--ab-muted);font-size:13px}
.ab-pager a{display:grid;min-width:44px;min-height:44px;place-items:center;padding:0 10px;border:1px solid var(--ab-line);border-radius:8px;font-weight:600}
.ab-pager a:hover{border-color:var(--ab-line-strong);background:var(--ab-panel-2)}
.ab-pager a[aria-current="page"]{border-color:var(--ab-accent);background:var(--ab-docs-active,rgba(95,237,131,.09));color:var(--ab-text);font-weight:800}
.ab-view-read .ab-prev-next{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:40px}
.ab-pn{display:flex;min-height:76px;padding:14px 18px;border:1px solid var(--ab-line);border-radius:12px;background:var(--ab-panel);flex-direction:column;justify-content:center;gap:4px;transition:border-color .2s var(--ab-ease)}
.ab-pn:hover{border-color:var(--ab-accent);color:inherit}
.ab-pn-next{grid-column:2;text-align:end}
.ab-pn-label{color:var(--ab-muted);font-size:13px}
.ab-pn-title{color:var(--ab-text);font-size:16px;font-weight:700;line-height:1.7}
.ab-prev-next a{min-height:48px;font-size:14px}
@media(max-width:640px){.ab-view-read .ab-prev-next{grid-template-columns:1fr}.ab-pn-next{grid-column:auto}.ab-pn-empty{display:none}}

/* Resume ("continue reading"). */
.ab-resume{margin:16px 0 0}
.ab-resume-link{display:inline-flex;flex-wrap:wrap;align-items:center;gap:4px 8px;min-height:44px;color:var(--ab-accent-text);font-weight:700}
.ab-resume-title{color:var(--ab-muted);font-weight:500}
.ab-page-hero .ab-resume{text-align:center}
.ab-reader-hero .ab-resume{text-align:start}

/* Citation: one quiet button per section instead of an ID row. */
.ab-view-read .ab-section-reference{display:none}
.ab-cite-box{margin-top:12px;color:var(--ab-muted);font-size:13px}
.ab-cite-box summary{display:inline-flex;align-items:center;min-height:36px;padding:2px 14px;border:1px solid var(--ab-line);border-radius:999px;cursor:pointer;list-style:none}
.ab-cite-box summary::-webkit-details-marker{display:none}
.ab-cite-box summary:hover,.ab-cite-box[open] summary{border-color:var(--ab-line-strong);color:var(--ab-text)}
.ab-cite-body{margin-top:10px;padding:12px 14px;border:1px solid var(--ab-line);border-radius:12px;background:var(--ab-panel)}
.ab-cite-body p{margin:0 0 8px;color:var(--ab-muted);font-size:13px;line-height:1.9}
.ab-cite-text{color:var(--ab-text)!important}
.ab-cite-body [dir="ltr"]{display:inline-block;max-width:100%;direction:ltr;overflow-wrap:anywhere}
.ab-cite-id [dir="ltr"]{font:13px/1.6 Inter,ui-monospace,monospace}
.ab-cite-actions{display:flex;flex-wrap:wrap;gap:8px;margin:0!important}
.ab-cite-actions a,.ab-copy{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border:1px solid var(--ab-line);border-radius:8px;background:transparent;color:var(--ab-accent-text);font-size:13px;cursor:pointer}

/* Figures that only exist in the PDF, and source debris the web edition omits. */
.ab-reader-content .ab-figure-note{margin:0 0 20px;padding:10px 14px;border-inline-start:3px solid var(--ab-line-strong);border-radius:0 8px 8px 0;background:var(--ab-panel);color:var(--ab-muted);font-size:14px!important;line-height:1.9!important}
.ab-figure-label{margin-inline-end:4px;color:var(--ab-text);font-weight:700}
.ab-view-read .ab-reader .ab-prose>section.ab-section-omitted{margin-top:20px}
.ab-omit-note{margin:0;padding:10px 14px;border:1px dashed var(--ab-line);border-radius:10px;color:var(--ab-muted);font-size:14px}

/* Lists: ordered lists show only their numbers, in Persian digits. */
.ab-reader-content ul{list-style-type:disc}
.ab-reader-content ol{list-style-type:decimal;list-style-type:persian}
.ab-reader-content li::marker{color:var(--ab-muted)}

/* Tables: natural width; narrow screens stack header-labelled rows as cards. */
.ab-reader-content .ab-table-wrap table{min-width:0}
.ab-reader-content .ab-table-scroll{overflow-x:auto}
.ab-reader-content .ab-table-scroll:not(.ab-table-narrow) table{min-width:560px}
.ab-reader-content th,.ab-reader-content td{text-align:start}
@media(max-width:640px){
  .ab-reader-content .ab-table-cards{overflow:visible;border:0;border-radius:0}
  .ab-reader-content .ab-table-cards table,.ab-reader-content .ab-table-cards tbody,.ab-reader-content .ab-table-cards tr,.ab-reader-content .ab-table-cards td{display:block;width:100%}
  .ab-reader-content .ab-table-cards table{background:transparent}
  .ab-reader-content .ab-table-cards thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
  .ab-reader-content .ab-table-cards tr{margin:0 0 12px;padding:8px 14px;border:1px solid var(--ab-line);border-radius:12px;background:var(--ab-panel)}
  .ab-reader-content .ab-table-cards td{padding:8px 0;border:0;border-bottom:1px dashed var(--ab-line)}
  .ab-reader-content .ab-table-cards td:last-child{border-bottom:0}
  .ab-reader-content .ab-table-cards td:empty{display:none}
  .ab-reader-content .ab-table-cards td[data-label]::before{content:attr(data-label);display:block;margin-bottom:2px;color:var(--ab-muted);font-size:13px;font-weight:700}
  .ab-reader-content .ab-table-scroll:not(.ab-table-narrow) table{min-width:520px}
  .ab-reader-content .ab-table-titled td.ab-cell-title{padding:4px 0 8px;border-bottom:1px solid var(--ab-line);color:var(--ab-text);font-weight:700}
}

/* Tool pages: a compact hero so results start in the first viewport. */
.ab-view-search .ab-main,.ab-view-graph .ab-main,.ab-view-concepts .ab-main,.ab-view-sources .ab-main,.ab-view-glossary .ab-main,.ab-view-templates .ab-main{padding-top:clamp(20px,3vw,32px)}
:is(.ab-view-search,.ab-view-graph,.ab-view-concepts,.ab-view-sources,.ab-view-glossary,.ab-view-templates) .ab-page-hero{max-width:none;margin:0 0 18px;padding:0;border:0;background:none;text-align:start}
:is(.ab-view-search,.ab-view-graph,.ab-view-concepts,.ab-view-sources,.ab-view-glossary,.ab-view-templates) .ab-page-hero h1{max-width:none;margin:2px 0 6px;font-size:clamp(26px,3.4vw,36px);line-height:1.45;letter-spacing:0}
:is(.ab-view-search,.ab-view-graph,.ab-view-concepts,.ab-view-sources,.ab-view-glossary,.ab-view-templates) .ab-page-hero .ab-lead{max-width:75ch;margin:0;font-size:15px}
:is(.ab-view-search,.ab-view-graph,.ab-view-concepts,.ab-view-sources,.ab-view-glossary,.ab-view-templates) .ab-page-hero .ab-actions{justify-content:flex-start;margin-top:12px}
:is(.ab-view-search,.ab-view-graph,.ab-view-concepts,.ab-view-sources,.ab-view-glossary,.ab-view-templates) .ab-section{margin-top:24px}
:is(.ab-view-search,.ab-view-graph,.ab-view-concepts,.ab-view-sources,.ab-view-glossary,.ab-view-templates) .ab-section-head h2{font-size:clamp(22px,2.6vw,28px)}
.ab-view-search .ab-search{max-width:none;margin:0;padding:16px}
.ab-view-search .ab-search fieldset{margin-top:10px}
:is(.ab-view-concepts,.ab-view-graph) .ab-breadcrumb{margin-bottom:16px}
/* Concept type filter: pill chips with counts; one scrolling row on phones. */
.ab-type-chips{margin:0 0 18px}
.ab-chip-row{display:flex;flex-wrap:wrap;gap:8px}
.ab-chip{display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:4px 14px;border:1px solid var(--ab-line);border-radius:999px;background:var(--ab-panel);color:var(--ab-text);font-size:14px;font-weight:600;line-height:1.4;white-space:nowrap;text-decoration:none;transition:border-color .2s var(--ab-ease),background-color .2s var(--ab-ease)}
.ab-chip:hover{border-color:var(--ab-line-strong);background:var(--ab-panel-2);color:var(--ab-text)}
.ab-chip:focus-visible{outline:2px solid var(--ab-accent);outline-offset:2px}
.ab-chip-count{display:inline-grid;min-width:24px;padding:0 7px;place-items:center;border-radius:999px;background:var(--ab-panel-2);color:var(--ab-muted);font-size:13px;font-weight:700}
.ab-chip[aria-current="page"]{border-color:var(--ab-accent);background:var(--ab-docs-active,rgba(95,237,131,.12));color:var(--ab-text);font-weight:800}
.ab-chip[aria-current="page"] .ab-chip-count{background:var(--ab-accent);color:var(--ab-ink,#07110a)}
@media(max-width:760px),(pointer:coarse){.ab-chip{min-height:44px}}
@media(max-width:760px){
  .ab-type-chips{margin-inline:-18px}
  .ab-chip-row{flex-wrap:nowrap;padding:2px 18px 6px 40px;overflow-x:auto;overscroll-behavior-x:contain;scroll-padding-inline:18px;scrollbar-width:none;-webkit-mask-image:linear-gradient(to left,#000 calc(100% - 36px),transparent);mask-image:linear-gradient(to left,#000 calc(100% - 36px),transparent)}
  .ab-chip-row::-webkit-scrollbar{display:none}
  .ab-chip{flex:none}
}
@media(prefers-reduced-motion:reduce){.ab-chip{transition:none}}
html[data-ab-theme="light"] .ab-view-read .ab-skip,html[data-ab-theme="light"] .ab-view-read .ab-button-primary{color:#fff}

/* Concept graph: deterministic SVG neighbourhood; a list on narrow screens. */
.ab-graph-figure{margin:18px 0 10px}
.ab-view-graph .ab-prose>section{max-width:1100px}
.ab-graph-svg{display:block;width:auto;max-width:100%;height:auto;margin-inline:auto;border:1px solid var(--ab-line);border-radius:16px;background:var(--ab-panel);fill:none;stroke:none;stroke-width:0;font-family:"Estedad",Tahoma,sans-serif}
.ab-graph-edges line{stroke:var(--ab-line-strong);stroke-width:1.5}
.ab-graph-center rect{fill:var(--ab-panel-2);stroke:var(--ab-accent);stroke-width:2.5}
.ab-graph-center text{fill:var(--ab-text);font-size:16px;font-weight:800}
.ab-graph-node rect{fill:var(--ab-panel-2);stroke:var(--ab-line-strong);stroke-width:1.2}
.ab-graph-node .ab-graph-label{fill:var(--ab-text);font-size:14px;font-weight:700}
.ab-graph-node .ab-graph-rel{fill:var(--ab-muted);font-size:13px}
.ab-graph-node:hover rect,.ab-graph-node:focus-visible rect{stroke:var(--ab-accent);stroke-width:2.5}
.ab-graph-node:focus-visible{outline:none}
.ab-graph-figure figcaption{margin-top:8px;color:var(--ab-muted);font-size:13px}
@media(max-width:760px){.ab-graph-figure{display:none}}
.ab-relation{font-size:13px}

/* Book structure map on the graph index. */
.ab-map-parts{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:14px;margin:0;padding:0;list-style:none}
.ab-map-part{padding:16px;border:1px solid var(--ab-line);border-radius:16px;background:var(--ab-panel)}
.ab-map-part-link{display:flex;min-height:44px;padding-bottom:10px;border-bottom:1px solid var(--ab-line);flex-direction:column;gap:2px;font-weight:750;line-height:1.7}
.ab-map-chapters{display:grid;gap:2px;margin:10px 0 0;padding:0;list-style:none}
.ab-map-chapters a{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:baseline;gap:10px;min-height:44px;padding:8px 10px;border-radius:8px;font-size:14px;line-height:1.7}
.ab-map-chapters a:hover{background:var(--ab-panel-2)}
.ab-map-num{color:var(--ab-accent-text);font-size:13px;font-weight:700;white-space:nowrap}
.ab-map-count{color:var(--ab-muted);font-size:13px;white-space:nowrap}
.ab-term-list>span{display:flex;align-items:baseline;justify-content:space-between;gap:10px;min-height:48px;padding:11px 14px;border:1px solid var(--ab-line);border-radius:12px;background:var(--ab-panel)}
.ab-term-count{color:var(--ab-muted);font-size:13px}

/* No UI text below 13px. */
.ab-card-meta,.ab-kicker,dt,dd,.ab-breadcrumb,.ab-footer,.ab-brand small,.ab-stat-grid span,.ab-layer>span,.ab-book-showcase figcaption,.ab-public-url,.ab-term-list bdi,.ab-search>label,.ab-verify-form>label,.ab-request-form label,.ab-ask-form>label,.ab-search fieldset,.ab-ask-form>div,.ab-status b,.ab-verify-hash,.ab-theme-toggle,.ab-book-status,.ab-reading-tools,.ab-reader-index summary bdi,.kbk-ai-book-page>.kdcv-nav a{font-size:13px}
.ab-view-read .ab-reader .ab-layer>span{font-size:13px}

/* Touch targets: 44px on touch AND on narrow windows. */
@media(max-width:760px),(pointer:coarse){
  .ab-breadcrumb a{display:inline-flex;align-items:center;min-height:44px;padding-inline:8px}
  .ab-card a,.ab-card-meta a,.ab-results .ab-card-link,.ab-footer a,.ab-cite-box summary{display:inline-flex;align-items:center;min-height:44px}
  .ab-related-inline a,.ab-term-list a{min-height:44px}
}

@media(prefers-reduced-motion:reduce){.ab-view-read .ab-reading-tools,.ab-view-read .ab-header,.ab-pn{transition:none}}

/* Footnotes: superscript links in the text, a short list closing the section. */
.ab-reader-content sup.ab-fnref{line-height:0;font-size:.72em;vertical-align:super}
.ab-reader-content sup.ab-fnref a{display:inline-block;min-width:1.4em;padding:0 2px;color:var(--ab-accent-text);font-weight:700;text-align:center;text-decoration:none}
.ab-reader-content sup.ab-fnref a:hover,.ab-reader-content sup.ab-fnref a:focus-visible{text-decoration:underline}
.ab-reader-content .ab-footnotes{margin:28px 0 8px;padding-top:14px;border-top:1px solid var(--ab-line);color:var(--ab-muted)}
.ab-reader-content .ab-footnotes-title{margin:0 0 8px!important;color:var(--ab-text);font-size:14px!important;font-weight:700}
.ab-reader-content .ab-footnotes ol{margin:0;padding-inline-start:1.6em;list-style-type:persian}
.ab-view-read .ab-reader .ab-reader-content .ab-footnotes li{margin:0 0 6px;color:var(--ab-muted);font-size:14px;line-height:1.9;overflow-wrap:anywhere}
.ab-reader-content .ab-footnotes li:target{color:var(--ab-text);background:var(--ab-docs-active,rgba(95,237,131,.09));border-radius:6px}
.ab-reader-content .ab-footnotes li.ab-fn-loose{list-style:none}
.ab-reader-content .ab-fn-back{display:inline-flex;align-items:center;justify-content:center;min-width:28px;min-height:28px;margin-inline-start:4px;color:var(--ab-accent-text);text-decoration:none}
.ab-reader-content :is(h3,h4,h5,h6)[id],.ab-reader-content .ab-footnotes li,.ab-reader-content sup.ab-fnref a{scroll-margin-top:calc(74px + var(--ab-reader-toolbar-height,50px) + 16px)}
.ab-reader-content h6{font-size:16px;margin:20px 0 10px}

/* A section longer than one page: part labels and the hand-off to the next page. */
.ab-view-read .ab-reader .ab-prose>section>h2.ab-cont-label{margin:0 0 18px;padding:8px 0 10px;font-size:15px;line-height:1.8;font-weight:600;color:var(--ab-muted)}
.ab-cont-label .ab-cont-part,.ab-part-note{color:var(--ab-muted);font-weight:500}
.ab-part-note{margin:-12px 0 18px;font-size:13px}
.ab-part-next{margin:8px 0 0}
.ab-part-next a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border:1px solid var(--ab-line);border-radius:8px;color:var(--ab-accent-text);font-size:14px;font-weight:700}
.ab-view-read .ab-toc>a.ab-toc-cont,.ab-view-read .ab-reader-index nav a.ab-toc-cont{padding-inline-start:28px;color:var(--ab-muted);font-size:13px}

/* PDF viewer: an iframe of the same-origin stream, with a link fallback. */
.ab-pdf-stage iframe.ab-pdf-embed{display:block;width:100%}
.ab-pdf-fallback{margin:10px 0 0;color:var(--ab-muted);font-size:14px;line-height:1.9}
.ab-pdf-fallback a{display:inline-flex;align-items:center;min-height:44px;color:var(--ab-accent-text);font-weight:700}
/* .ab-pdf-stage is painted #181d1f in BOTH themes, so its fallback line takes light ink, not the theme tokens. */
.ab-pdf-stage .ab-pdf-fallback{color:#c9d2cc}.ab-pdf-stage .ab-pdf-fallback a{color:#b8f26a}

/* Persian-first names: the source's English name is secondary, muted, LTR. */
.ab-title-en{margin:2px 0 6px;color:var(--ab-muted);font:500 14px/1.6 Inter,system-ui,sans-serif;text-align:start;unicode-bidi:isolate;overflow-wrap:anywhere}
.ab-page-hero .ab-title-en{font-size:16px}
span.ab-title-en{display:inline;margin:0}
.ab-subtitle-fa{margin:0 0 4px;color:var(--ab-muted);font-size:14px}
.ab-definition{margin:0 0 14px}
.ab-definition-label{margin:0 0 4px!important;color:var(--ab-muted);font-size:13px;font-weight:700}
.ab-definition-en{margin:0;color:var(--ab-text);font:400 15px/1.75 Inter,system-ui,sans-serif;text-align:start;unicode-bidi:isolate}

/* Site chrome on book pages only: 44px nav targets on phones/touch, legal
   footer text no smaller than 13px (theme CSS is untouched). */
@media(max-width:760px),(pointer:coarse){.kbk-ai-book-page>.kdcv-nav a{min-height:44px}}
.kbk-ai-book-page .kdcv-foot-legal{font-size:13px;opacity:1}

/* Print: the text, black on white, with external link targets spelled out. */
@media print{
  :root,body{--ab-bg:#fff!important;--ab-panel:#fff!important;--ab-panel-2:#fff!important;--ab-text:#000!important;--ab-muted:#333!important;--ab-line:#bbb!important;--ab-line-strong:#888!important;--ab-accent:#000!important;--ab-accent-text:#000!important;color-scheme:light}
  body,.ab-view-read{background:#fff!important;color:#000}
  .ab-header,.ab-mobile-nav,.ab-reading-tools,.ab-reading-panel,.ab-toc,.ab-reader-index,.ab-pager,.ab-prev-next,.ab-cite-box,.ab-related-inline,.ab-breadcrumb,.ab-footer,.ab-site-footer,.kdcv-nav,.ab-skip,.ab-theme-toggle,.ab-menu-button,.ab-resume,button,#kdcv-waiting{display:none!important}
  .ab-main,.ab-view-read .ab-main{width:auto;max-width:none;padding:0}
  .ab-reader,.ab-view-read .ab-reader{display:block;width:auto;max-width:none}
  .ab-view-read .ab-reader .ab-prose{max-width:none}
  .ab-reader-content p,.ab-reader-content li{font-size:11.5pt!important;line-height:1.8!important;orphans:3;widows:3}
  h1,h2,h3,h4,h5{break-after:avoid;page-break-after:avoid;color:#000}
  table,tr,figure,.ab-figure-note,blockquote{break-inside:avoid;page-break-inside:avoid}
  .ab-reader-content .ab-table-wrap{overflow:visible;border-color:#888}
  .ab-reader-content .ab-table-wrap table{min-width:0!important}
  a{color:#000;text-decoration:underline}
  .ab-reader-content a[href^="http"]::after{content:" (" attr(href) ")";font-size:9pt;overflow-wrap:anywhere}
  .ab-section-omitted,.ab-part-next,.ab-reader-content .ab-fn-back,.ab-pdf-fallback{display:none}
  .ab-reader-content sup.ab-fnref a{color:#000}
}
/* A Latin list item (dir="auto" resolves to ltr) would move its marker to the
   left, outside the column, and scroll the page sideways on phones. The item
   keeps the list's direction for its marker; its own text still runs ltr. */
.ab-reader-content :is(ul,ol)>li[dir="auto"]{direction:inherit;unicode-bidi:plaintext}
/* Last undersized targets from the round-2 review: breadcrumb (41px wide), section-head
   link and the Ask search field (30px tall) on phones; card-meta links (16px) everywhere. */
@media (max-width:760px),(pointer:coarse){
  .kbk-ai-book-page .ab-breadcrumb a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px}
  .kbk-ai-book-page .ab-section-head a{display:inline-flex;align-items:center;min-height:44px}
  .kbk-ai-book-page input[type=search]{min-height:44px}
}
.kbk-ai-book-page .ab-card-meta a{display:inline-block;min-height:24px;line-height:24px}
@media (max-width:760px),(pointer:coarse){.kbk-ai-book-page .ab-card-meta a{min-height:44px;line-height:44px}}