:root{--learn-ink:#102b43;--learn-muted:#60798b;--learn-blue:#007fac;--learn-cyan:#008dc5;--learn-navy:#082546;--learn-line:#dce8ef;--learn-soft:#f4f9fc;--learn-soft-blue:#edf9fd;--learn-green:#087f5b;--learn-red:#b4232c;--learn-purple:#7a6fa8;--learn-shadow:0 14px 38px rgba(8,37,70,.075),0 2px 8px rgba(8,37,70,.035)}
.learn-page{background:#fff;color:var(--learn-ink)}
.learn-page .site-header{box-shadow:0 2px 18px rgba(8,37,70,.025)}
.learn-page .nav-shell{min-height:82px}
.learn-page #navigation>a[aria-current="page"]{color:var(--learn-blue);font-weight:700}
.learn-hero{padding:68px 0 48px;background:radial-gradient(ellipse at 84% 2%,#e8f8fd 0,transparent 54%),linear-gradient(180deg,#fff,#fbfdff);border-bottom:1px solid #e7f0f5}
.learn-hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(320px,.75fr);gap:54px;align-items:center}
.learn-kicker{display:inline-flex;align-items:center;gap:8px;color:#007fac;font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.learn-kicker:before{content:"";width:26px;height:2px;background:#25a5cf;border-radius:2px}
.learn-hero h1{font-size:clamp(42px,5.3vw,70px);line-height:1.02;letter-spacing:-.045em;margin:0 0 22px;max-width:900px}
.learn-hero h1 span{color:#008dc5}
.learn-hero p{font-size:18px;line-height:1.75;color:#5d7789;max-width:760px;margin:0}
.learn-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.learn-hero-card{background:#082546;color:white;border-radius:22px;padding:28px;box-shadow:0 24px 58px rgba(8,37,70,.16);position:relative;overflow:hidden}
.learn-hero-card:after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;background:#0a91c4;opacity:.12;right:-70px;top:-70px}
.learn-hero-card strong{display:block;font-size:22px;line-height:1.2;margin-bottom:12px;position:relative;z-index:1}.learn-hero-card p{font-size:14px;color:#cbdbe6;line-height:1.65;position:relative;z-index:1}
.learn-path{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px;position:relative;z-index:1}.learn-path span{border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:13px 10px;font-size:11px;text-align:center;color:#d8e6ef}.learn-path b{display:block;color:#5dd0f3;font-size:13px;margin-bottom:3px}
.learn-shell{width:min(1380px,calc(100% - 64px));margin:0 auto;display:grid;grid-template-columns:275px minmax(0,1fr);gap:54px;padding:52px 0 90px}
.learn-sidebar{position:sticky;top:102px;align-self:start;max-height:calc(100vh - 122px);overflow:auto;padding:8px 16px 18px 0;scrollbar-width:thin;scrollbar-color:#cadce8 transparent}
.learn-sidebar-title{font-size:12px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:#7b91a1;margin:0 0 16px;padding:0 12px}
.learn-nav-group{margin:0 0 18px}.learn-nav-group>strong{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#93a5b1;padding:0 12px;margin-bottom:6px}.learn-nav-group a{display:block;padding:8px 12px;border-radius:9px;font-size:13px;line-height:1.35;color:#526d7f;margin:2px 0}.learn-nav-group a:hover{background:#f2f8fb;color:#006f98}.learn-nav-group a[aria-current="page"]{background:#e9f7fc;color:#006f98;font-weight:750;box-shadow:inset 3px 0 0 #008dc5}
.learn-main{min-width:0;max-width:1000px}.learn-main-wide{max-width:none}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:7px;align-items:center;font-size:12px;color:#8094a2;margin-bottom:22px}.breadcrumbs a{color:#567386}.breadcrumbs a:hover{color:#007fac}.breadcrumbs .sep{color:#b0bec8}
.learn-article-header{border-bottom:1px solid #e4edf3;padding-bottom:30px;margin-bottom:34px}.learn-article-header h1{font-size:clamp(37px,4vw,56px);line-height:1.07;letter-spacing:-.04em;margin:0 0 16px}.learn-article-header .hub-subtitle{font-size:clamp(34px,3.6vw,50px);line-height:1.08;letter-spacing:-.035em;margin:0 0 16px;color:#102b43}.learn-article-header .lede{font-size:18px;line-height:1.75;color:#587386;max-width:830px;margin:0}.article-meta{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:18px;color:#8295a3;font-size:12px}.article-meta span{display:inline-flex;align-items:center;gap:6px}.article-meta span:before{content:"";width:5px;height:5px;border-radius:50%;background:#63bfdc}
.article-toc{background:#f7fbfd;border:1px solid #dfeaf0;border-radius:14px;padding:18px 20px;margin:0 0 34px}.article-toc strong{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#6e8798}.article-toc ol{columns:2;column-gap:34px;margin:12px 0 0;padding-left:20px}.article-toc li{break-inside:avoid;margin:6px 0;padding-right:8px;font-size:13px}.article-toc a{color:#48687b}.article-toc a:hover{color:#007fac}
.learn-article{font-size:16px;line-height:1.78;color:#496779}.learn-article h2{font-size:31px;line-height:1.18;letter-spacing:-.025em;color:#102b43;margin:52px 0 17px;scroll-margin-top:115px}.learn-article h3{font-size:21px;line-height:1.3;color:#173c55;margin:30px 0 10px;scroll-margin-top:115px}.learn-article p{margin:0 0 18px}.learn-article ul,.learn-article ol{margin:0 0 22px;padding-left:24px}.learn-article li{margin:7px 0}.learn-article strong{color:#163950}.learn-article a:not(.button):not(.text-link){color:#007fac;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}.learn-article a:hover{color:#005f82}
.callout{border:1px solid #d9e9f1;background:#f7fbfd;border-radius:14px;padding:20px 22px;margin:24px 0}.callout strong:first-child{display:block;color:#0b5573;font-size:13px;text-transform:uppercase;letter-spacing:.055em;margin-bottom:7px}.callout p:last-child{margin-bottom:0}.callout.important{background:#eef9fd;border-color:#bcddea}.callout.warning{background:#fff9f2;border-color:#f0dbc2}.callout.risk{background:#f8fafb;border-color:#dce5ea}.callout.green{background:#f1faf6;border-color:#cce7da}.callout.red{background:#fff6f6;border-color:#efd3d5}
.rule-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:23px 0}.rule-card{border:1px solid #dde9f0;border-radius:14px;padding:19px;background:#fff}.rule-card h3{font-size:17px;margin:0 0 7px}.rule-card p{font-size:14px;line-height:1.65;margin:0;color:#647e90}.rule-card .metric{font-size:28px;font-weight:800;letter-spacing:-.03em;color:#0a759e;display:block;margin-bottom:6px}.rule-card.bull .metric{color:#087f5b}.rule-card.bear .metric{color:#b4232c}
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:26px 0}.flow div{position:relative;background:#f5fafc;border:1px solid #dfeaf0;border-radius:12px;padding:16px 12px;text-align:center;font-size:12px;font-weight:700;color:#365a70}.flow div:not(:last-child):after{content:"→";position:absolute;right:-9px;top:50%;transform:translateY(-50%);z-index:2;background:#fff;color:#84a3b5;width:18px}.flow b{display:block;color:#0081af;font-size:11px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:4px}
.figure{margin:28px 0 34px}.figure-frame{border:1px solid #d9e7ee;background:#f6fafc;border-radius:16px;overflow:hidden;box-shadow:var(--learn-shadow)}.figure-button{display:block;width:100%;border:0;background:#edf4f7;padding:0;position:relative;text-align:left}.figure-button img{display:block;width:100%;height:auto}.figure-button .zoom-label{position:absolute;right:12px;bottom:12px;background:rgba(8,37,70,.9);color:#fff;border-radius:999px;padding:7px 11px;font-size:11px;font-weight:700;box-shadow:0 4px 14px rgba(8,37,70,.2)}.figure figcaption{font-size:12px;line-height:1.6;color:#718796;margin-top:10px;padding:0 3px}.figure.detail{max-width:650px}.figure.phone{max-width:520px;margin-left:auto;margin-right:auto}.figure-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}.figure-pair .figure{margin:0}.figure-pair .figure-frame{height:100%}
.table-wrap{overflow:auto;border:1px solid #dbe7ee;border-radius:14px;margin:24px 0}.learn-table{border-collapse:collapse;width:100%;min-width:640px;background:#fff}.learn-table th,.learn-table td{padding:13px 15px;border-bottom:1px solid #e5edf2;text-align:left;vertical-align:top;font-size:13px;line-height:1.55}.learn-table th{background:#f5fafc;color:#284c63;font-size:12px;text-transform:uppercase;letter-spacing:.04em}.learn-table tr:last-child td{border-bottom:0}.learn-table td:first-child{font-weight:700;color:#244960}.status-pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 9px;font-size:11px;font-weight:800;letter-spacing:.03em}.status-pill.watch{background:#eff3f6;color:#647483}.status-pill.bull{background:#e8f7f0;color:#087f5b}.status-pill.bear{background:#fff0f1;color:#b4232c}
.related{border-top:1px solid #e2ebf0;margin-top:56px;padding-top:32px}.related h2{font-size:24px;margin:0 0 18px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.related-card{border:1px solid #dde8ee;border-radius:13px;padding:17px;background:#fff;transition:.18s ease}.related-card:hover{transform:translateY(-2px);border-color:#8fc8dc;box-shadow:0 10px 28px rgba(8,37,70,.07)}.related-card span{display:block;font-size:10px;color:#0085b5;font-weight:800;letter-spacing:.07em;text-transform:uppercase;margin-bottom:5px}.related-card strong{font-size:15px;line-height:1.35;color:#20465d}.related-card p{font-size:12px;color:#78909f;line-height:1.5;margin:7px 0 0}
.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:28px 0}.lesson-card{display:flex;flex-direction:column;border:1px solid #dce8ef;border-radius:17px;padding:22px;background:#fff;min-height:210px;transition:.18s ease}.lesson-card:hover{transform:translateY(-3px);border-color:#8ec8dc;box-shadow:var(--learn-shadow)}.lesson-card .lesson-no{font-size:11px;color:#0088b8;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:13px}.lesson-card h2{font-size:20px;line-height:1.25;margin:0 0 9px;color:#183e57;letter-spacing:-.01em}.lesson-card p{font-size:13px;color:#6a8394;line-height:1.62;margin:0 0 18px}.lesson-card .lesson-link{margin-top:auto;color:#007fac;font-size:12px;font-weight:750}.lesson-card[data-hidden="true"]{display:none}
.learn-search{display:flex;align-items:center;gap:10px;border:1px solid #d5e5ed;background:#fff;border-radius:12px;padding:10px 13px;box-shadow:0 4px 14px rgba(8,37,70,.03);margin:0 0 18px}.learn-search svg{width:20px;height:20px;stroke:#7993a4;fill:none;stroke-width:2}.learn-search input{border:0;outline:0;width:100%;font-size:14px;color:#163950;background:transparent}.learn-search input::placeholder{color:#8da1ae}
.learning-map{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:26px 0 35px}.learning-map div{border-radius:15px;padding:18px;border:1px solid #dbe8ee;background:#f8fbfd}.learning-map b{display:block;color:#007fac;font-size:11px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:6px}.learning-map strong{display:block;font-size:15px;color:#20445b;margin-bottom:5px}.learning-map span{font-size:12px;line-height:1.5;color:#718999}
.learn-support{margin-top:44px;border-radius:18px;padding:28px;background:linear-gradient(135deg,#0a3154,#082546);color:#fff}.learn-support h2{margin:0 0 8px;font-size:25px;color:#fff}.learn-support p{color:#c7d7e2;font-size:14px;margin:0 0 17px;max-width:720px}.learn-support .button{display:inline-flex;margin-right:8px;background:#0f8db9}.learn-support .text-link{color:#d7edf6}
.learn-mobile-toggle{display:none;position:sticky;top:76px;z-index:22;width:100%;border:0;border-bottom:1px solid #dfe9ef;background:#f7fbfd;color:#1b4964;font-weight:750;padding:12px 20px;text-align:left}.learn-mobile-toggle span{float:right;color:#007fac}
.learn-sidebar-backdrop{display:none}
.learn-page footer{margin-top:0}.learn-page .footer-top a[href="/learn/"]{color:#007fac;font-weight:700}
.chart-dialog.learn-dialog{width:min(1180px,calc(100% - 36px));padding:0;overflow:hidden}.learn-dialog .chart-dialog-toolbar{padding:12px 16px}.learn-dialog img{display:block;max-height:78vh;margin:auto}.learn-dialog #chart-caption{padding:0 18px}.learn-dialog #original-chart{display:inline-block;margin:0 18px 18px}
@media(max-width:1120px){.learn-shell{width:min(1100px,calc(100% - 48px));grid-template-columns:240px minmax(0,1fr);gap:36px}.lesson-grid{grid-template-columns:repeat(2,1fr)}.learn-hero-grid{gap:34px}.learning-map{grid-template-columns:repeat(2,1fr)}}
@media(max-width:860px){.learn-hero{padding:45px 0 36px}.learn-hero-grid{grid-template-columns:1fr}.learn-hero-card{max-width:680px}.learn-shell{display:block;width:min(820px,calc(100% - 40px));padding-top:34px}.learn-mobile-toggle{display:block}.learn-sidebar{position:fixed;z-index:45;top:0;left:0;width:min(330px,88vw);height:100dvh;max-height:none;background:#fff;padding:26px 18px 30px;box-shadow:18px 0 45px rgba(8,37,70,.18);transform:translateX(-105%);transition:transform .22s ease;overflow:auto}.learn-sidebar.open{transform:translateX(0)}.learn-sidebar-backdrop{position:fixed;display:block;inset:0;background:rgba(7,27,52,.42);border:0;z-index:44;opacity:0;pointer-events:none;transition:opacity .2s}.learn-sidebar-backdrop.open{opacity:1;pointer-events:auto}.article-toc ol{columns:1}.flow{grid-template-columns:1fr}.flow div:not(:last-child):after{content:"↓";right:50%;top:auto;bottom:-15px;transform:translateX(50%)}.related-grid{grid-template-columns:1fr 1fr}.figure-pair{grid-template-columns:1fr}.rule-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.learn-hero .container{width:calc(100% - 36px)}.learn-hero h1{font-size:42px}.learn-hero p{font-size:16px}.learn-path{grid-template-columns:1fr 1fr}.learn-shell{width:calc(100% - 32px);padding-bottom:70px}.learn-article-header h1{font-size:36px}.learn-article-header .lede{font-size:16px}.learn-article h2{font-size:27px;margin-top:44px}.lesson-grid{grid-template-columns:1fr}.learning-map{grid-template-columns:1fr}.related-grid{grid-template-columns:1fr}.rule-grid{grid-template-columns:1fr}.figure-pair{gap:24px}.learn-support{padding:24px 20px}.learn-support .button{width:100%;justify-content:center;margin-bottom:10px}.article-meta{gap:7px 12px}.learn-table th,.learn-table td{padding:11px 12px}.breadcrumbs{font-size:11px}}
@media(prefers-reduced-motion:reduce){.learn-sidebar,.lesson-card,.related-card,.learn-sidebar-backdrop{transition:none!important}}
/* Documentation-only refinements: independent of landing page and checkout. */
.learn-page .learn-main{max-width:920px}
.learn-page .learn-article p,.learn-page .learn-article>ul,.learn-page .learn-article>ol{max-width:76ch}
.learn-page .learn-nav-group>strong{color:#526d7f}
.learn-page .learn-nav-group a{min-height:40px;display:flex;align-items:center}
.learn-page .learn-path{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.learn-page .learn-path span{padding:12px 6px}
.learn-page .breadcrumbs{position:static;display:flex;background:transparent;border:0;box-shadow:none;padding:0;gap:7px}
.learn-page .article-toc{position:static;display:block;box-shadow:none}
.learn-page .article-toc a{display:inline-block;padding:4px 0;font-size:14px}
.learn-page .figure-button img{object-fit:contain}
.learn-page .figure figcaption{font-size:14px;color:#526d7f}
.learn-page .figure.detail{max-width:650px}
.learn-page .learn-dialog{max-height:92dvh;overflow:auto}
.learn-page .learn-dialog img{width:auto;max-width:100%;height:auto;object-fit:contain;max-height:65dvh}
.learn-page .learn-dialog .chart-dialog-toolbar{position:sticky;top:0;background:#fff;z-index:1}
.learn-page .learn-dialog .dialog-close{min-width:44px;min-height:44px}
.learn-sidebar-close{display:none}
.help-search{padding:18px 20px;background:#f7fbfd;border:1px solid #dce8ef;border-radius:14px;margin-bottom:26px}
.help-search[hidden],#help-search-results[hidden]{display:none}
.help-search label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
.help-search input{width:100%;min-height:46px;border:1px solid #b6ccda;border-radius:8px;padding:10px 12px;font:inherit;color:#102b43;background:#fff}
.help-search-status{margin:8px 0 0;font-size:13px;color:#526d7f}
.help-search-status:empty{display:none}
#help-search-results{list-style:none;padding:0;margin:12px 0 0}
#help-search-results li{border-top:1px solid #dce8ef;padding:10px 0}
#help-search-results a{display:block;color:#007fac;font-weight:650;font-size:15px;line-height:1.5}
#help-search-results small{display:block;color:#526d7f;margin-top:3px}
.help-shortcuts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0}
.help-shortcuts a{padding:18px;background:#edf9fd;border:1px solid #c7e4ef;border-radius:12px;color:#006b92;font-size:14px;font-weight:650}
.learn-page .lesson-pagination{display:grid;position:static;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;border:0;box-shadow:none;background:transparent;margin:40px 0 0;padding:0}
.lesson-pagination a{border:1px solid #cddfe9;border-radius:13px;padding:18px;color:#153c56;display:block}
.lesson-pagination span{display:block;color:#007fac;font-size:12px;margin-bottom:5px}.lesson-pagination strong{font-size:16px}
.help-answer{border:1px solid #d8e6ef;border-radius:12px;margin:12px 0;background:#fff}
.help-answer summary{cursor:pointer;padding:17px 20px;font-weight:650;line-height:1.5;color:#183e57}
.help-answer>p{padding:0 20px 18px;margin:0!important}
.help-glossary{display:grid;grid-template-columns:minmax(130px,1fr) 3fr;margin:24px 0}
.help-glossary dt,.help-glossary dd{margin:0;padding:16px;border-bottom:1px solid #dce8ef}
.help-glossary dt{font-weight:700;color:#163950;background:#f5fafc}
.learn-page .learn-support .button,.learn-page .learn-support .text-link{min-height:44px}
.learn-page .learn-table{min-width:0;table-layout:fixed}
.learn-page .learn-table td,.learn-page .learn-table th{overflow-wrap:anywhere}
.learn-page .learn-article a:focus-visible,.learn-page summary:focus-visible{outline:3px solid #008cc4;outline-offset:3px}
@media(max-width:860px){
 .learn-page .learn-sidebar-close{display:block;margin:0 0 20px auto;min-height:44px;padding:8px 16px;border:1px solid #cddfe9;border-radius:8px;background:#fff;color:#163950}
 .learn-page.learn-enhanced .learn-sidebar:not(.open){visibility:hidden}
 .learn-page .learn-sidebar-backdrop{z-index:44}
 .learn-page .learn-sidebar{z-index:70}
 .learn-page .learn-sidebar.open{visibility:visible}
 .learn-page:not(.learn-enhanced) .learn-sidebar{position:static;transform:none;width:100%;height:auto;max-height:none;box-shadow:none;margin-bottom:24px}
 .learn-page:not(.learn-enhanced) .learn-mobile-toggle,.learn-page:not(.learn-enhanced) .learn-sidebar-close{display:none}
 .learn-page .learn-article h2,.learn-page .learn-article h3{scroll-margin-top:150px}
 .help-shortcuts{grid-template-columns:1fr}
}
@media(max-width:600px){
 .learn-page .learn-path{grid-template-columns:repeat(3,minmax(0,1fr))}
 .learn-page .learn-path span:last-child{grid-column:span 2}
 .learn-page .article-toc{padding:16px}
 .learn-page .article-toc ol{columns:1}
 .learn-page .learn-table th,.learn-page .learn-table td{font-size:12px;padding:10px 8px}
 .learn-page .lesson-pagination{grid-template-columns:1fr}
 .help-glossary{display:block}.help-glossary dt{border:0;padding-bottom:4px}.help-glossary dd{padding-top:8px}
 .learn-page .learn-hero h1{font-size:clamp(34px,10vw,42px)}
 .learn-page .learn-article-header h1{font-size:clamp(30px,9vw,36px);overflow-wrap:anywhere}
}
.learn-page .figure-window{overflow:hidden}
.learn-page .figure-window img{position:absolute;max-width:none;height:auto;object-fit:initial}
.learn-page .figure-pair>*{min-width:0}
.learn-page .figure.phone{width:100%;min-width:0}
.learn-page .figure-button{min-width:0}
.learn-page .figure-button .zoom-label{z-index:1}
.learn-page .figure-pair .figure-frame{height:auto}
.learn-page .lesson-pagination a,.learn-page .related-card{min-width:0;overflow-wrap:anywhere}
.learn-page .lesson-pagination strong{display:block;white-space:normal;overflow-wrap:anywhere}
@media(max-width:600px){
 .learn-page .table-wrap{overflow:visible;border:0;border-radius:0}
 .learn-page .learn-table,.learn-page .learn-table tbody,.learn-page .learn-table tr,.learn-page .learn-table td{display:block;width:100%}
 .learn-page .learn-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
 .learn-page .learn-table tr{margin-bottom:14px;border:1px solid #dce8ef;border-radius:12px;overflow:hidden}
 .learn-page .learn-table td{display:grid;grid-template-columns:92px minmax(0,1fr);gap:12px;font-size:14px;padding:12px;line-height:1.6}
 .learn-page .learn-table td:before{content:attr(data-label);font-size:12px;font-weight:700;color:#526d7f}
 .learn-page .learn-table td:first-child{background:#f5fafc}
 .learn-page .learn-table td:last-child{border-bottom:0}
}
.learn-page .figure-window img{visibility:hidden}
.learn-page .figure-window img{position:absolute;width:1px!important;height:1px!important;left:0;top:0;visibility:hidden}
@media(max-width:860px){.learn-page .learn-mobile-toggle{top:83px}}