/* Scoped reading and practice layer, using Forsk's blue, navy and yellow palette. */
html:has(body.forsk-learning-page){scroll-behavior:auto}
.fl-main{--fl-ink:#15223e;--fl-muted:#52627b;--fl-blue:#0954af;--fl-line:#dce4ef;--fl-paper:#f4f7fc;color:var(--fl-ink);background:#fff;font-family:Arial,Helvetica,sans-serif;font-size:18px;line-height:1.75;padding-bottom:76px}
.fl-main *{box-sizing:border-box}.fl-main [hidden]{display:none!important}.fl-shell{width:min(1180px,calc(100% - 48px));margin-inline:auto}.fl-main h1,.fl-main h2,.fl-main h3{color:var(--fl-ink);font-family:inherit;font-weight:750;line-height:1.2;letter-spacing:-.035em}.fl-main h1{font-size:clamp(36px,4.8vw,60px);max-width:20ch;margin:18px 0 24px}.fl-main h2{font-size:clamp(25px,2.7vw,35px);margin:0 0 22px}.fl-main h3{font-size:22px;margin:0 0 14px}.fl-main p{margin:0 0 20px}.fl-main a{color:var(--fl-blue);text-underline-offset:4px}.fl-main a:hover{text-decoration:underline}.fl-main a:focus-visible,.fl-main button:focus-visible,.fl-main input:focus-visible,.fl-main summary:focus-visible{outline:3px solid #e1ac00!important;outline-offset:4px}.fl-main button,.fl-main input{font-family:inherit}.fl-main ul,.fl-main ol{padding-left:25px;margin:0 0 22px}.fl-main li{padding-left:5px;margin:8px 0}.fl-main code{font-size:.88em;background:#eef2f8;color:#153e72;border-radius:4px;padding:2px 5px}.fl-main section[id]{scroll-margin-top:125px}.fl-main .fl-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;line-height:1.5;padding-top:25px;color:var(--fl-muted)}.fl-breadcrumb [aria-current]{max-width:70ch}.fl-breadcrumb a{color:var(--fl-muted)}
.fl-hero{display:grid;grid-template-columns:1.35fr .85fr;align-items:center;gap:76px;padding-block:64px 70px}.fl-main .fl-eyebrow{font-size:12px;letter-spacing:.15em;line-height:1.4;font-weight:800;color:var(--fl-blue);margin:0 0 16px}.fl-main .fl-lede{font-size:20px;line-height:1.7;color:var(--fl-muted);max-width:64ch}.fl-actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 18px}.fl-main .fl-button{min-height:49px;display:inline-flex;align-items:center;justify-content:center;gap:20px;padding:13px 21px;background:var(--fl-blue);border:1px solid var(--fl-blue);border-radius:9px;color:#fff;font-size:15px;font-weight:750;line-height:1.4;text-decoration:none;cursor:pointer}.fl-main .fl-button:hover{background:#073e83;color:#fff;text-decoration:none}.fl-main .fl-button-secondary{background:#fff;color:var(--fl-blue);border-color:#b9c9df}.fl-main .fl-button-secondary:hover{background:#edf3fc;color:#073e83}.fl-main .fl-small{font-size:13px;line-height:1.65;color:var(--fl-muted)}.fl-main .fl-text-link{font-size:15px;font-weight:750}.fl-code-preview{background:#142646;border-radius:18px;color:#fff;padding:27px;box-shadow:16px 16px 0 #edf2f9}.fl-code-top{display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:11px;letter-spacing:.12em;color:#b4c5e2;border-bottom:1px solid #344561;padding-bottom:19px}.fl-code-top span:last-child{font-size:27px;color:#ffdc64;letter-spacing:0}.fl-code-preview ol{list-style:none;padding:15px 0 0;margin:0;counter-reset:steps}.fl-code-preview li{display:grid;grid-template-columns:35px 1fr;column-gap:12px;margin:23px 0;padding:0;counter-increment:steps}.fl-code-preview li:before{content:"0" counter(steps);color:#ffdc64;font-size:13px;grid-row:1/3;padding-top:4px}.fl-code-preview strong{font-size:19px}.fl-code-preview li span{font-size:14px;color:#c3cee0;line-height:1.7}.fl-preview-bottom{border-top:1px solid #344561;padding-top:19px;color:#c3cee0;font-size:12px}
.fl-section{padding-block:42px}.fl-section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:25px}.fl-section-heading h2{margin-bottom:0}.fl-search{display:grid;gap:5px;color:var(--fl-muted);font-size:12px;min-width:min(340px,100%)}.fl-search input{width:100%;border:1px solid #becbdc;border-radius:8px;padding:11px 13px;min-height:47px;background:#fff;color:var(--fl-ink);font-size:14px}.fl-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:15px 0 22px}.fl-tabs a{display:inline-flex;padding:9px 14px;border:1px solid var(--fl-line);border-radius:7px;color:var(--fl-muted);font-size:14px;font-weight:650;text-decoration:none}.fl-tabs a[aria-current]{color:#073e83;background:#eaf1fc;border-color:#c6d7ef}.fl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.fl-card{border:1px solid var(--fl-line);border-radius:12px;padding:26px 24px;background:#fff;display:flex;flex-direction:column;transition:box-shadow .15s ease,border-color .15s ease}.fl-card:hover{border-color:#96b2d7;box-shadow:0 8px 30px #15223e09}.fl-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:23px}.fl-tag{font-size:10px;font-weight:800;color:#275b95;background:#edf3fc;padding:4px 9px;letter-spacing:.07em;border-radius:4px}.fl-card-number{font-size:12px;color:#71809a}.fl-card h3{font-size:21px;line-height:1.4}.fl-card h3 a{color:var(--fl-ink);text-decoration:none}.fl-card h3 a:hover{color:var(--fl-blue);text-decoration:underline}.fl-card p{font-size:15px;color:var(--fl-muted);line-height:1.75;margin-bottom:25px}.fl-card-footer{display:flex;gap:8px;justify-content:space-between;align-items:center;margin-top:auto;padding-top:18px;border-top:1px solid #edf0f5;font-size:11px;color:var(--fl-muted)}.fl-card-footer span:last-child{font-size:20px;color:var(--fl-blue)}.fl-bottom-note{background:var(--fl-paper);border:1px solid var(--fl-line);padding:33px 36px;border-radius:12px;margin-top:40px}.fl-bottom-note h2{font-size:27px}.fl-bottom-note p{max-width:86ch;font-size:16px}
.fl-lesson-hero{padding-block:53px 40px;border-bottom:1px solid var(--fl-line);margin-bottom:40px}.fl-lesson-hero h1{max-width:26ch;font-size:clamp(33px,4vw,49px)}.fl-lesson-hero .fl-lede{max-width:80ch}.fl-reading-layout{display:grid;grid-template-columns:235px minmax(0,1fr);gap:65px;align-items:start}.fl-sidebar{position:sticky;top:125px;font-size:13px;padding-right:20px}.fl-sidebar nav{display:grid;gap:8px;padding-bottom:20px;margin-bottom:20px;border-bottom:1px solid var(--fl-line)}.fl-sidebar nav a{color:var(--fl-muted);padding-block:3px;line-height:1.65;text-decoration:none}.fl-sidebar nav a:hover{color:var(--fl-blue);text-decoration:underline}.fl-article{min-width:0;max-width:810px}.fl-article>section{margin-bottom:43px}.fl-article>section h2{font-size:29px}.fl-article>section h3{font-size:20px;margin-top:24px}.fl-callout{padding:24px 27px;background:#f0f5fc;border:1px solid #d6e3f4;border-left:4px solid #2569bb;border-radius:9px}.fl-callout h2{font-size:23px!important}.fl-callout p:last-child,.fl-callout ul:last-child{margin-bottom:0}.fl-callout-warm{background:#fffaf0;border-color:#eedfbc;border-left-color:#bb8700}.fl-code{border:1px solid #283c5b;border-radius:10px;overflow:hidden;margin:22px 0;background:#14223a;max-width:100%}.fl-code-toolbar{padding:10px 16px;display:flex;justify-content:space-between;align-items:center;gap:12px;background:#1d304e;font-size:11px;color:#c4d1e6;letter-spacing:.04em}.fl-code-toolbar button{background:transparent;border:1px solid #667c9e;border-radius:5px;min-height:36px;padding:5px 11px;color:#fff;font-size:12px;cursor:pointer}.fl-code pre{overflow:auto;max-width:100%;margin:0;padding:23px 20px;white-space:pre;tab-size:4;line-height:1.75}.fl-code pre code{padding:0;background:none;color:#eff4ff;font:14px/1.75 ui-monospace,SFMono-Regular,Consolas,monospace}.fl-output{border:1px solid #d7e2d8;border-left:4px solid #297443;border-radius:8px;padding:17px 20px;background:#f3faf3;overflow:auto}.fl-output code{padding:0;color:#215b31;background:none;font:14px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace}.fl-table-wrap{max-width:100%;overflow:auto;border:1px solid var(--fl-line);border-radius:8px;margin:18px 0}.fl-main table{border-collapse:collapse;min-width:100%;width:100%;font-size:14px;line-height:1.6;display:table}.fl-main th,.fl-main td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--fl-line);white-space:nowrap}.fl-main th{background:#edf3fb;color:#183c6a;font-weight:750}.fl-main tbody tr:last-child td{border-bottom:0}.fl-details{padding:17px 20px;border:1px solid var(--fl-line);border-radius:8px;margin:15px 0;background:#fff}.fl-details summary{font-size:16px;font-weight:700;color:var(--fl-blue);cursor:pointer;min-height:30px}.fl-details[open] summary{margin-bottom:18px}.fl-details p:last-child{margin-bottom:0}.fl-main .fl-quiz{background:#f6f8fc;border:1px solid var(--fl-line);padding:25px;border-radius:10px}.fl-quiz fieldset{border:0;padding:0;margin:0 0 20px;min-width:0}.fl-quiz legend{font-size:18px;font-weight:700;margin-bottom:16px;float:none;line-height:1.55}.fl-quiz label{display:flex;align-items:flex-start;gap:12px;border:1px solid #c6d2e2;border-radius:6px;padding:12px 14px;background:#fff;margin:9px 0;font-size:16px;cursor:pointer;line-height:1.65}.fl-quiz input{flex:0 0 auto;margin-top:6px;width:17px;height:17px;accent-color:var(--fl-blue)}.fl-main .fl-quiz-result{margin:18px 0 0;font-weight:700}.fl-quiz [data-quiz-explanation]{font-size:15px;margin:10px 0 0}.fl-quiz[data-correct="true"] .fl-quiz-result{color:#216332}.fl-quiz[data-correct="false"] .fl-quiz-result{color:#8b331c}.fl-references{border-top:1px solid var(--fl-line);padding-top:27px;font-size:14px}.fl-references h2{font-size:22px!important}.fl-lesson-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;border-top:1px solid var(--fl-line);padding-top:28px;margin-top:35px}.fl-lesson-nav a{display:grid;gap:8px;text-decoration:none}.fl-lesson-nav span{font-size:12px;color:var(--fl-muted)}.fl-lesson-nav strong{font-size:16px;line-height:1.55}.fl-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.fl-ad{margin:60px 0;padding:24px 0;border-top:1px solid var(--fl-line);border-bottom:1px solid var(--fl-line);min-height:180px}.fl-ad>span{display:block;font-size:11px;color:var(--fl-muted);text-align:center;margin-bottom:18px}.fl-pack-intro{max-width:76ch;margin-bottom:35px}.fl-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.fl-product-grid .fl-card{padding:32px}.fl-product-grid ul{font-size:16px;color:var(--fl-muted);margin:0 0 24px}.fl-print-note{font-size:13px;color:var(--fl-muted)}
@media(max-width:1000px){.fl-hero{gap:36px;grid-template-columns:1.2fr .8fr}.fl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.fl-reading-layout{grid-template-columns:190px minmax(0,1fr);gap:32px}.fl-sidebar{padding-right:0}.fl-section-heading{align-items:flex-start}}
@media(max-width:760px){.fl-main{font-size:17px;line-height:1.8;padding-bottom:45px}.fl-shell{width:calc(100% - 32px)}.fl-hero{grid-template-columns:1fr;padding-block:35px 42px;gap:30px}.fl-main h1{font-size:38px!important;line-height:1.15!important;max-width:22ch}.fl-main .fl-lede{font-size:18px}.fl-code-preview{box-shadow:8px 8px 0 #edf2f9;padding:23px}.fl-code-preview ol{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.fl-code-preview li{display:block;margin:15px 0}.fl-code-preview li:before{display:block;margin-bottom:8px}.fl-code-preview strong{display:block;font-size:16px}.fl-code-preview li span{font-size:12px}.fl-section-heading{display:block}.fl-search{margin-top:22px;width:100%}.fl-section{padding-block:27px}.fl-reading-layout{display:block}.fl-sidebar{position:static;margin-bottom:30px;padding:18px;background:var(--fl-paper);border-radius:8px}.fl-sidebar nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 18px;padding-bottom:14px;margin-bottom:12px}.fl-sidebar .fl-eyebrow{grid-column:1/-1}.fl-lesson-hero{padding-block:34px 26px;margin-bottom:24px}.fl-article>section h2{font-size:26px}.fl-article>section{margin-bottom:34px}.fl-callout{padding:20px}.fl-quiz{padding:20px!important}.fl-main .fl-quiz legend{font-size:17px}.fl-code pre{padding:19px 15px}.fl-code pre code{font-size:13px}.fl-bottom-note{padding:26px 23px}.fl-main .fl-breadcrumb{padding-top:18px;font-size:12px}.fl-lesson-nav{gap:15px}.fl-product-grid{grid-template-columns:1fr}}
@media(max-width:470px){.fl-grid{grid-template-columns:1fr}.fl-card{padding:23px}.fl-main h1{font-size:34px!important}.fl-actions{display:grid}.fl-actions .fl-button{width:100%}.fl-code-preview ol{grid-template-columns:1fr;gap:0}.fl-code-preview li{display:grid;grid-template-columns:28px 1fr;column-gap:10px;margin:13px 0}.fl-code-preview li:before{grid-row:1/3;margin:0}.fl-code-preview li span{font-size:13px}.fl-sidebar nav{grid-template-columns:1fr}.fl-lesson-nav{grid-template-columns:1fr}.fl-details{padding:15px}.fl-quiz label{font-size:15px;padding:12px}.fl-product-grid .fl-card{padding:25px}}
@media(prefers-reduced-motion:reduce){.fl-main *{scroll-behavior:auto;transition:none}}
@media print{.forsk-learning-page .header-area,.forsk-learning-page .hamburger-area,.forsk-learning-page .forsk-footer,.forsk-learning-page .fl-sidebar,.forsk-learning-page .fl-breadcrumb,.forsk-learning-page .fl-code-toolbar button,.forsk-learning-page .fl-quiz button,.forsk-learning-page .fl-ad,.forsk-learning-page .fl-lesson-nav{display:none!important}.fl-main{font-size:11pt}.fl-shell{width:100%}.fl-reading-layout{display:block}.fl-main .space-for-header{padding-top:0!important}.fl-code{break-inside:avoid}.fl-main h1{font-size:25pt!important}.fl-code pre{white-space:pre-wrap}.fl-code pre code{font-size:9pt}.fl-article{max-width:none}.fl-main a{color:#15223e}}