@font-face{font-family:Heebo;src:url('/assets/fonts/heebo-400.woff') format('woff');font-weight:400;font-display:swap}@font-face{font-family:Heebo;src:url('/assets/fonts/heebo-700.woff') format('woff');font-weight:700;font-display:swap}
:root{--cp-ink:#16364c;--cp-muted:#6b8190;--cp-line:#e0e9ee;--cp-teal:#078e96;--cp-paper:#f7fafb}
html{scroll-behavior:smooth;scroll-padding-top:100px}.cluster-page{margin:0;color:var(--cp-ink);background:var(--cp-paper);font:400 15px/1.8 Heebo,'Segoe UI',Arial,sans-serif;direction:rtl}.cluster-page *{box-sizing:border-box}.cluster-page a{color:inherit;text-decoration:none}.cluster-page button{font:inherit;cursor:pointer}.cluster-page :focus-visible{outline:3px solid #0e9da5;outline-offset:4px}.skip{position:absolute;inset-inline-start:20px;top:-100px;z-index:1200;background:white;padding:12px}.skip:focus{top:12px}.cluster-wrap{max-width:1440px;padding:0 38px;margin:auto}.crumbs{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:#768e9d;font-size:12px;min-height:78px;padding:18px 0}.crumbs a:hover{color:var(--cp-teal)}.crumbs [aria-current]{color:#294f65}.reading-layout{display:grid;grid-template-columns:246px minmax(0,1fr) 172px;gap:30px;align-items:start}.article-main{min-width:0}.cluster-side{position:sticky;top:88px;background:#fff;border:1px solid var(--cp-line);border-radius:16px;overflow:hidden}.cluster-nav-body{padding:22px 17px 12px}.cluster-heading{display:flex;align-items:center;gap:11px;line-height:1.3}.cluster-heading>span:last-child{margin-inline-start:auto;color:var(--cp-teal)}.cluster-heading small{display:block;color:var(--cp-muted);font-size:10px;margin-bottom:5px}.cluster-heading strong{font-size:22px}.cluster-icon{display:grid;place-items:center;width:39px;height:43px;background:#e4f5f4;border-radius:10px;color:var(--cp-teal);font-size:26px}.side-intro{font-size:11px;color:var(--cp-muted);margin:20px 0 16px;padding-bottom:20px;border-bottom:1px solid var(--cp-line)}.topic-group{border-bottom:1px solid #edf2f5;padding:11px 0}.topic-group summary{list-style:none;cursor:pointer;display:flex;align-items:center;font-size:12px;font-weight:700;gap:10px}.topic-group summary::-webkit-details-marker{display:none}.topic-group summary:before{content:'⌄';font-size:15px;color:#79909b;transition:transform .15s}.topic-group:not([open]) summary:before{transform:rotate(90deg)}.topic-group summary small{font-size:10px;color:#90a1aa;margin-inline-start:auto;font-weight:400}.topic-links{padding-top:10px;display:grid;gap:3px}.topic-links a{display:block;padding:9px 12px;border-radius:9px;line-height:1.6;font-size:12px}.topic-links a small{display:block;font-size:9px;color:#8ba0ab;margin-top:3px}.topic-links a:hover{background:#f4f8fa}.topic-links a.current{background:#e4f5f4;border-inline-start:3px solid #17a4ab;color:#087f88;font-weight:700}.topic-links a.current small{color:#389aa1}.planned-topic{display:flex;justify-content:space-between;font-size:12px;color:#6c828e;padding:15px 0;border-bottom:1px solid #edf2f5}.planned-topic small{font-size:10px;color:#9aaab2}.cluster-all{display:flex;justify-content:space-between;font-size:11px;padding:18px 0 5px;color:var(--cp-teal)!important}.cluster-mobile-toggle{display:none}.article-hero{padding:4px 0 27px;border-bottom:1px solid var(--cp-line)}.article-eyebrow{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:11px;color:var(--cp-teal);font-weight:700;margin-bottom:20px}.draft-badge{display:inline-flex;border:1px solid #d4e5e9;border-radius:6px;background:#edf4f6;color:#688793;font-size:10px;font-weight:400;padding:3px 9px;white-space:nowrap}.cluster-page h1,.cluster-page h2,.cluster-page h3{line-height:1.4;letter-spacing:-.025em}.article-hero h1{font-size:clamp(30px,3.1vw,45px);margin:0 0 20px;line-height:1.24;letter-spacing:-.045em}.cluster-page em{font-style:normal;color:#098e96}.article-deck{font-size:17px;line-height:1.8;max-width:590px;color:#698190;margin:0 0 25px}.article-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:10px;color:#7b929f}.author-mark{display:grid;place-items:center;width:30px;height:30px;background:#dff2f2;border-radius:50%;color:#118b95;font:700 10px Arial}.meta-divider{width:3px;height:3px;background:#b2c2cb;border-radius:50%}.copy-link{margin-inline-start:auto;padding:5px 0;color:#567887;border:0;background:none;font-size:10px!important}.copy-status:empty{display:none}.draft-note{display:flex;gap:12px;align-items:flex-start;background:#eef5f7;border-radius:8px;padding:13px 16px;margin:24px 0 0;color:#65818f;font-size:11px;line-height:1.8}.draft-note p{margin:0}.draft-dot{width:6px;height:6px;flex:none;border-radius:50%;background:#8cb9c4;margin-top:7px}.article-content{font-size:15px;line-height:1.95}.article-content section{padding:31px 0 29px;border-bottom:1px solid var(--cp-line);scroll-margin-top:100px}.section-label{font-size:10px;letter-spacing:.03em;color:var(--cp-teal);margin:0 0 9px;font-weight:700}.article-content h2{font-size:25px;margin:0 0 17px}.article-content p{margin:0 0 15px}.article-content a{color:#098e96;border-bottom:1px solid #9cd8da}.article-content a:hover{color:#075969}.model-map{background:#fff;border:1px solid #dce8ed;border-radius:15px;padding:22px 24px 14px;margin-top:23px;position:relative;overflow:hidden}.model-inputs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.model-inputs>div{display:flex;align-items:center;gap:9px;padding:10px 6px;border-bottom:1px solid #e9eff3}.model-inputs b{font:400 25px Georgia,serif;color:#188f9a;width:27px;flex:none;text-align:center}.model-inputs span{font-size:10px;color:#5d7b8c;line-height:1.6}.model-output{display:flex;align-items:center;flex-direction:column;position:relative;padding:25px 0 15px;margin-top:14px}.model-connector{height:18px;border-inline-start:1px dashed #9ccbd1;position:absolute;top:0}.model-output small{font-size:10px;color:#91a5af}.model-output 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h2{font-size:23px}.hub-strategy{background:white;border:1px solid var(--cp-line);padding:22px;border-radius:12px;display:flex;justify-content:space-between;font-size:15px}.hub-strategy small{font-size:11px;color:#6a96a4}.hub-planned{display:grid;grid-template-columns:1fr 1fr;gap:20px}.hub-planned>div{border:1px dashed #cfdee5;border-radius:12px;padding:22px;color:#6f8997}.hub-planned h3{font-size:18px;margin:0 0 10px}.hub-planned p{font-size:12px;margin:0}
@media(min-width:1500px){.reading-layout{grid-template-columns:260px minmax(0,1fr) 190px;gap:40px}.article-hero h1{font-size:46px}}
@media(max-width:1180px){.reading-layout{grid-template-columns:230px minmax(0,1fr);gap:30px}.article-toc{display:none}.inline-toc{display:block;background:white;border:1px solid var(--cp-line);padding:14px 18px;border-radius:10px;margin:20px 0 0}.inline-toc summary{font-size:12px;cursor:pointer}.inline-toc nav{display:grid;grid-template-columns:1fr 1fr;margin-top:12px}.hub-grid{grid-template-columns:1fr 1fr}}
@media(max-width:800px){html{scroll-padding-top:136px}.cluster-wrap{padding:0 20px}.crumbs{min-height:65px;font-size:10px;gap:8px}.reading-layout{display:flex;flex-direction:column;gap:24px}.cluster-side{width:100%;top:64px;z-index:30;border-radius:10px;box-shadow:0 5px 15px #163b5008}.cluster-mobile-toggle{display:flex;width:100%;justify-content:space-between;align-items:center;border:0;background:#fff;padding:13px 16px;font-size:12px;color:#286b7f}.cluster-mobile-toggle span{font-size:18px;color:#11949d}.cluster-nav-body{display:none;max-height:65vh;overflow:auto;padding:20px}.cluster-side.is-open .cluster-nav-body{display:block;border-top:1px solid var(--cp-line)}.cluster-side.is-open .cluster-mobile-toggle span{transform:rotate(45deg)}.article-main{width:100%}.article-hero h1{font-size:35px;line-height:1.3}.article-hero{padding-top:0}.article-eyebrow{margin-bottom:17px;gap:10px}.article-deck{font-size:15px}.article-meta{font-size:10px;gap:8px}.article-content{font-size:15px;line-height:1.9}.article-content h2{font-size:25px}.article-content section{scroll-margin-top:135px}.model-inputs{gap:14px 7px}.model-map{padding:18px 12px 14px}.model-inputs>div{padding:9px 3px;flex-direction:column;align-items:center;text-align:center;gap:5px}.model-inputs span{font-size:10px}.related-grid{gap:10px}.related-grid>a{min-height:190px;padding:16px 12px}.related-grid h3{font-size:14px}.related-grid span{font-size:9px}.course-strip{padding:22px;align-items:start;flex-direction:column}.course-strip>a{margin-top:8px}.concept-links a{align-items:start;gap:8px;flex-direction:column}.concept-links small{font-size:9px}.cluster-footer{margin-top:40px;gap:15px;font-size:10px}.hub-hero{padding-top:15px}.hub-hero>.draft-badge{position:static}.hub-hero h1{font-size:38px}.hub-section-head{align-items:start;flex-direction:column;gap:0}.hub-section-head p{margin-bottom:5px}.hub-grid{grid-template-columns:1fr 1fr}.hub-feature{grid-column:1/-1;min-height:230px}.hub-card{padding:22px 16px;min-height:210px}.hub-card h3{font-size:17px}.hub-planned{grid-template-columns:1fr}.hub-strategy{align-items:start;gap:15px;flex-direction:column}}
@media(max-width:400px){.cluster-wrap{padding:0 16px}.article-hero h1{font-size:30px}.article-meta time{font-size:9px}.related-grid{grid-template-columns:1fr}.related-grid>a{min-height:135px}.related-grid h3{font-size:17px;margin:10px 0 15px}.related-grid span{font-size:11px}.inline-toc nav{grid-template-columns:1fr}.hub-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}


/* Completed options cluster: article examples, sources and reading sequence. */
.reading-time{font-size:10px;font-weight:400;color:#79939f}.article-eyebrow>a:hover{color:#05636b}.article-content strong{color:#244e63}.formula{margin:22px 0;padding:20px 22px;border:1px solid #dce9ed;border-radius:12px;background:#eef5f7;color:#244c62;font:400 15px/2.3 'Segoe UI',Arial,sans-serif;overflow-x:auto;white-space:nowrap;text-align:left;max-width:100%;scrollbar-width:thin}.table-scroll{overflow-x:auto;max-width:100%;margin:22px 0;border:1px solid #dde8ed;border-radius:12px;background:white;scrollbar-width:thin}.table-scroll table{width:100%;min-width:500px;border-collapse:collapse;font-size:12px;line-height:1.8}.table-scroll caption{padding:15px 17px;font-size:11px;text-align:right;color:#6a8594;background:#f6fafb}.table-scroll th{padding:13px 15px;text-align:right;background:#edf4f6;border-bottom:1px solid #dce8ed;font-weight:700;color:#355a70}.table-scroll td{padding:13px 15px;border-bottom:1px solid #edf2f5;color:#617f90}.table-scroll tr:last-child td{border:0}.table-scroll td:not(:first-child){direction:ltr;text-align:center;unicode-bidi:isolate}.article-faq{border-bottom:1px solid #e1ebef;background:white;padding:17px 18px}.article-faq:first-of-type{border-radius:10px 10px 0 0}.article-faq:last-of-type{border-radius:0 0 10px 10px}.article-faq summary{cursor:pointer;font-size:14px;font-weight:700;line-height:1.8}.article-faq p{font-size:13px;color:#6c8493;margin:12px 0 0}.article-content .article-sources{padding:24px 0 30px;border:0}.article-sources h2{font-size:16px!important;margin:0 0 14px}.article-sources ul{padding-inline-start:18px;margin:0 0 17px;font-size:11px;line-height:2.2}.article-sources>p{color:#8aa0ab;font-size:10px}.article-sequence{display:flex;justify-content:space-between;gap:20px;padding:22px 0;border-top:1px solid #e0e9ee}.article-sequence>a{background:#fff;border:1px solid #dce8ed;border-radius:10px;padding:14px 18px;flex:1;max-width:50%}.article-sequence small{display:block;font-size:10px;color:#7d99a7;margin-bottom:5px}.article-sequence strong{font-size:14px;color:#228795}.related-grid p{font-size:11px;color:#7c929e;margin:0 0 20px;line-height:1.8}.related-grid h3{margin:12px 0}.related-grid>a{min-height:235px}.hub-count{position:absolute;inset-inline-end:0;top:24px;font-size:11px;border:1px solid #d5e6ec;border-radius:7px;background:#eef5f7;padding:5px 12px;color:#588594}.hub-tags a{font-size:11px;background:#edf4f6;border:1px solid #dbe8ed;padding:6px 13px;border-radius:6px}.hub-tags a:hover{border-color:#62b6c1;color:#06868f}.hub-card p{font-size:12px;line-height:1.9;color:#7c929e;margin:0 0 25px}.hub-card h3{margin:22px 0 12px}.hub-feature .reading-time{color:#a9ced6}.hub-strategy h3{margin:0 0 8px;font-size:21px}.hub-strategy p{color:#7c929e;font-size:13px;margin:0;max-width:670px}.hub-strategy small{white-space:nowrap}.hub-reading-path{border-top:1px solid #dfe9ee;padding-top:25px;margin:0 0 25px}.hub-reading-path h2{font-size:23px}.hub-reading-path ol{padding:0;list-style:none;display:flex;gap:12px}.hub-reading-path li{flex:1}.hub-reading-path a{display:flex;align-items:start;flex-direction:column;gap:8px;padding:15px;border:1px solid #dce8ed;border-radius:10px;background:white;font-size:12px;min-height:100px}.hub-reading-path span{color:#52a7b1;font-size:11px}.payoff-figure{margin:25px 0;background:#fff;border:1px solid #dce8ed;border-radius:14px;padding:20px}.payoff-figure svg{display:block;width:100%;height:auto;max-height:350px;direction:ltr}.payoff-figure figcaption{font-size:10px;color:#7e99a7;text-align:center;line-height:1.8;margin-top:12px}
@media(max-width:800px){.article-hero h1{font-size:32px}.article-meta{line-height:1.8}.table-scroll table{font-size:11px}.formula{font-size:13px;padding:16px}.hub-count{position:static;display:inline-block;margin:4px 0 15px}.hub-reading-path ol{flex-wrap:wrap}.hub-reading-path li{flex:1 1 140px}.hub-strategy small{white-space:normal}.article-sequence{gap:10px}.article-sequence>a{padding:14px 12px}.article-sequence strong{font-size:12px}.article-sequence small{font-size:9px}.payoff-figure{padding:10px}.related-grid>a{min-height:235px}}
@media(max-width:400px){.article-hero h1{font-size:29px}.related-grid>a{min-height:160px}.article-content h2{font-size:23px}}