@import url("/atlas-catalog/builders.css");
@import url("/atlas-catalog/collision-arena.css");
@import url("/atlas-catalog/capabilities.css");
/* Atlas reading surface. Shares the paper, ink and lettering of the course map. */
@font-face{font-family:"Atlas Serif";src:url(/atlas-landing/assets/optimized/serif.1c7136dcfe2b.woff2) format("woff2");font-weight:300 700;font-display:swap}
@font-face{font-family:"Atlas Sans";src:url(/atlas-landing/assets/optimized/sans.177af0794fb0.woff2) format("woff2");font-weight:100 900;font-display:swap}
body:has(.atlas-lesson-page){background:#f7f5ef}
#lesson-dialog.atlas-lesson-page{
  --paper:#f7f5ef;--ink:#26251f;--muted:#716e64;--action:#a65b3d;--line:#d9d1c3;
  --serif:"Atlas Serif",Georgia,serif;--sans:"Atlas Sans",Arial,sans-serif;
  width:min(1280px,calc(100% - 112px));height:auto;max-height:none;min-height:100dvh;margin:0 auto;
  overflow:visible;scrollbar-gutter:auto;font-family:var(--sans);color:var(--ink);background:var(--paper);
}
.atlas-lesson-page ::selection{background:#e5c8b8;color:#26251f}
.atlas-lesson-page :is(a,button,input,textarea,summary,.reader-table-scroll):focus-visible{outline:2px solid var(--action);outline-offset:4px}
.atlas-lesson-page :is(a,button,input,textarea,summary){-webkit-tap-highlight-color:transparent}
.atlas-lesson-page .reader-header{
  display:grid;grid-template-columns:auto auto minmax(0,1fr) auto auto;align-items:center;gap:32px;
  position:sticky;top:0;z-index:5;min-height:88px;padding:18px 48px;
  border-bottom:1px solid var(--line);background:var(--paper);backdrop-filter:none;
}
.atlas-lesson-page .reader-brand{font:500 42px/.95 var(--serif);letter-spacing:-.035em;text-decoration:none;color:var(--ink);white-space:nowrap}
.atlas-lesson-page .reader-brand span{color:var(--action)}
.atlas-lesson-page .reader-back{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0;font:500 13px/1.4 var(--sans);color:var(--action);text-decoration:none}
.atlas-lesson-page .reader-back svg{width:17px;height:17px;flex:none}
.atlas-lesson-page .reader-header-course{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font:400 13px/1.5 var(--sans);color:var(--muted)}
.atlas-lesson-page .reader-header-count{font:400 12px/1.4 var(--sans);font-variant-numeric:tabular-nums;color:var(--muted);white-space:nowrap}
.atlas-lesson-page .reader-layout{display:grid;grid-template-columns:280px minmax(0,1fr);align-items:start}
.atlas-lesson-page .reader-sidebar{position:sticky;top:88px;max-height:calc(100dvh - 88px);padding:42px 24px 36px 32px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:#c9bdab transparent}
.atlas-lesson-page .reader-course-link{display:block;margin:0 0 10px;font:500 32px/1.08 var(--serif);letter-spacing:-.02em;color:var(--ink);text-decoration:none}
.atlas-lesson-page .reader-course-link:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.atlas-lesson-page .reader-course-meta{margin:0 0 22px;font:400 12px/1.6 var(--sans);color:var(--muted)}
.atlas-lesson-page .reader-progress{margin:0 0 22px;font:400 11px/1.5 var(--sans);color:var(--muted)}
.atlas-lesson-page .reader-progress>div{height:2px;margin:12px 0 0;background:var(--line)}
.atlas-lesson-page .reader-progress i{height:2px;background:#657454}
.atlas-lesson-page .reader-program{border:0;background:transparent;border-radius:0}
.atlas-lesson-page .reader-program summary{font:500 14px/1.4 var(--sans);color:var(--ink)}
.atlas-lesson-page .reader-program nav{display:grid;gap:3px}
.atlas-lesson-page .reader-program a{display:flex;align-items:flex-start;gap:12px;min-height:44px;padding:11px 10px;text-align:left;text-decoration:none;color:#514f45;font:400 13px/1.55 var(--sans);border-radius:2px;transition:background .15s ease,color .15s ease}
.atlas-lesson-page .reader-program a:hover{background:#eee8dd;color:var(--ink)}
.atlas-lesson-page .reader-program a.current{background:#ede4d7;color:var(--action);font-weight:500}
.atlas-lesson-page .reader-number{flex:0 0 18px;padding-top:2px;font-size:10px;font-weight:500;font-variant-numeric:tabular-nums;color:var(--muted)}
.atlas-lesson-page .reader-program a.current .reader-number{color:var(--action)}
.atlas-lesson-page .reader-main{min-width:0;min-height:calc(100dvh - 88px);border-left:1px solid var(--line);padding:56px clamp(32px,5.5vw,88px) 64px}
.atlas-lesson-page .reader-intro,.atlas-lesson-page .atlas-reader-content,.atlas-lesson-page .reader-footer,.atlas-lesson-page .reader-paywall{width:100%;max-width:780px;margin-inline:auto}
.atlas-lesson-page .reader-intro{margin-bottom:42px}
.atlas-lesson-page .reader-intro h1{margin:0;color:var(--ink);font:500 clamp(42px,4.6vw,64px)/1.04 var(--serif);letter-spacing:-.025em;overflow-wrap:break-word;text-wrap:balance}
.atlas-lesson-page .reader-lesson-meta{display:flex;flex-wrap:wrap;gap:10px 20px;margin:22px 0 0;font:400 12px/1.5 var(--sans);color:var(--muted);font-variant-numeric:tabular-nums}
#lesson-dialog.atlas-lesson-page .lesson-body{font:400 17px/1.85 var(--sans);color:#48473e;overflow-wrap:break-word}
#lesson-dialog.atlas-lesson-page .lesson-body .course-text-content{font:inherit;line-height:inherit;color:inherit}
#lesson-dialog.atlas-lesson-page .lesson-body :is(p,ul,ol,blockquote,table,pre){max-width:100%}
#lesson-dialog.atlas-lesson-page .lesson-body p{margin:0 0 24px}
#lesson-dialog.atlas-lesson-page .lesson-body :is(h2,h3){margin:52px 0 22px;font:500 38px/1.12 var(--serif);letter-spacing:-.02em;color:var(--ink);text-wrap:balance}
#lesson-dialog.atlas-lesson-page .lesson-body :is(h4,.lesson-key-takeaways){margin:32px 0 14px;font:600 19px/1.45 var(--sans);letter-spacing:0;color:var(--ink)}
#lesson-dialog.atlas-lesson-page .lesson-body strong{font-weight:600;color:#37362e}
#lesson-dialog.atlas-lesson-page .lesson-body a{color:var(--action);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;overflow-wrap:anywhere}
#lesson-dialog.atlas-lesson-page .lesson-body a:hover{color:#7f4029}
#lesson-dialog.atlas-lesson-page .lesson-body ul{list-style:disc;padding-left:24px;margin:18px 0 30px}
#lesson-dialog.atlas-lesson-page .lesson-body ol{list-style:decimal;padding-left:25px;margin:18px 0 30px}
#lesson-dialog.atlas-lesson-page .lesson-body li{margin:12px 0;padding-left:5px}
#lesson-dialog.atlas-lesson-page .lesson-body li :is(ul,ol){margin-top:12px;margin-bottom:12px}
#lesson-dialog.atlas-lesson-page .lesson-body li::marker{color:var(--action)}
#lesson-dialog.atlas-lesson-page .lesson-body hr{height:0;margin:38px 0;border:0;border-top:1px solid var(--line)}
#lesson-dialog.atlas-lesson-page .lesson-body blockquote{margin:32px 0;padding:24px 0;border:0;border-block:1px solid var(--line);background:transparent;font:400 18px/1.8 var(--sans);color:#514f45}
#lesson-dialog.atlas-lesson-page .lesson-body img{display:block;max-width:100%;height:auto;margin:30px auto;border:1px solid var(--line);border-radius:3px}
#lesson-dialog.atlas-lesson-page .lesson-body pre{max-width:100%;overflow-x:auto;padding:22px;margin:28px 0;border:1px solid var(--line);border-radius:3px;background:#efebe2;font:14px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre;overflow-wrap:normal}
#lesson-dialog.atlas-lesson-page .lesson-body code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.86em}
#lesson-dialog.atlas-lesson-page .reader-table-scroll{max-width:100%;margin:30px 0;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:#c9bdab transparent}
#lesson-dialog.atlas-lesson-page .lesson-body table{display:table;table-layout:auto;width:100%;min-width:520px;margin:30px 0;border-collapse:collapse;font:400 14px/1.65 var(--sans)}
#lesson-dialog.atlas-lesson-page .reader-table-scroll table{margin:0}
#lesson-dialog.atlas-lesson-page .lesson-body thead{display:table-header-group}
#lesson-dialog.atlas-lesson-page .lesson-body tbody{display:table-row-group}
#lesson-dialog.atlas-lesson-page .lesson-body tr{display:table-row;border:0;margin:0}
#lesson-dialog.atlas-lesson-page .lesson-body :is(td,th){display:table-cell;width:auto;padding:17px 18px;border:1px solid var(--line);vertical-align:top;overflow-wrap:break-word;text-align:left}
#lesson-dialog.atlas-lesson-page .lesson-body th{background:#eee8dc;color:var(--ink);font-weight:600}
#lesson-dialog.atlas-lesson-page .lesson-body td:before{display:none}
#lesson-dialog.atlas-lesson-page .lesson-body .crm{padding:28px 0;margin:34px 0;border-block:1px solid var(--line)}
#lesson-dialog.atlas-lesson-page .lesson-body .crm-title{margin:0 0 24px;font:500 32px/1.12 var(--serif);color:var(--ink)}
#lesson-dialog.atlas-lesson-page .lesson-body .crm-steps{display:grid;gap:0}
#lesson-dialog.atlas-lesson-page .lesson-body .crm-step{display:grid;grid-template-columns:190px minmax(0,1fr);gap:24px;padding:18px 0;border-top:1px solid var(--line)}
#lesson-dialog.atlas-lesson-page .lesson-body .crm-step:first-child{border-top:0;padding-top:0}
#lesson-dialog.atlas-lesson-page .lesson-body .crm-card{background:none;border:0;padding:0;box-shadow:none}
#lesson-dialog.atlas-lesson-page .lesson-body .crm-card-h{font:500 15px/1.6 var(--sans);color:var(--action)}
#lesson-dialog.atlas-lesson-page .lesson-body .crm-desc{margin:0;font:400 14px/1.7 var(--sans);color:var(--muted)}
#lesson-dialog.atlas-lesson-page .lesson-body .crm-arr{display:none}
.atlas-lesson-page .reader-footer{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:32px;padding:30px 0 0;margin-top:60px;border-top:1px solid var(--line)}
.atlas-lesson-page .reader-footer :is(.reader-previous,.reader-next){display:flex;flex-direction:column;gap:9px;min-height:70px;padding:0;color:var(--ink);text-decoration:none;background:none;border:0;font-family:var(--sans);white-space:normal}
.atlas-lesson-page .reader-next{text-align:right;align-items:flex-end}
.atlas-lesson-page .reader-footer-label{font:400 11px/1.5 var(--sans);color:var(--action)}
.atlas-lesson-page .reader-footer strong{font:500 17px/1.5 var(--sans);overflow-wrap:break-word}
.atlas-lesson-page .reader-footer a:hover strong{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.atlas-lesson-page .reader-paywall{font:400 17px/1.8 var(--sans);color:#48473e}
.atlas-lesson-page .reader-paywall h2{margin:0 0 20px;font:500 38px/1.1 var(--serif);color:var(--ink)}
.atlas-lesson-page .reader-paywall .button{font:500 14px/1.4 var(--sans);padding:15px 20px;background:var(--ink);color:var(--paper);border-radius:3px}
/* Existing quiz behavior and markup, restyled to the same reading hierarchy. */
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__intro{padding:0;margin:0 0 32px;background:none;border:0;box-shadow:none}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__eyebrow{display:none}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__estimated{font-size:14px;color:var(--muted)}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__progress{margin:0 0 22px;font:500 12px/1.5 var(--sans);color:var(--action);font-variant-numeric:tabular-nums}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__question{padding:0;margin:0;border:0;background:none;box-shadow:none}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__prompt{margin:0 0 28px;font:500 29px/1.3 var(--serif);color:var(--ink)}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__options{display:grid;gap:12px}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__option{display:flex;align-items:flex-start;gap:13px;margin:0;padding:18px;border:1px solid var(--line);border-radius:3px;background:transparent;font:400 16px/1.65 var(--sans);color:var(--ink);box-shadow:none;cursor:pointer}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__option:hover{background:#eee8dd}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__option:has(input:checked){background:#eee4d8;border-color:#a65b3d}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__option input{flex:none;accent-color:var(--action);margin-top:5px}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__nav{display:flex;justify-content:space-between;gap:20px;margin:32px 0 0;padding:24px 0 0;border-top:1px solid var(--line)}
#lesson-dialog.atlas-lesson-page .atlas-reader-content :is(.course-quiz__submit,.course-quiz-summary__retake){min-height:48px;padding:13px 24px;border:1px solid var(--ink);border-radius:3px;background:var(--ink);color:var(--paper);font:500 14px/1.5 var(--sans);box-shadow:none}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz-summary__toggle{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 24px;border:1px solid var(--line);border-radius:3px;background:transparent;color:var(--ink);font:500 14px/1.5 var(--sans);letter-spacing:0;box-shadow:none;cursor:pointer}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz-summary__toggle span{font:inherit;letter-spacing:inherit}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz-summary__toggle:hover{background:#eee8dd;border-color:#bfb6a7}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz-summary__toggle:active{background:#e5ded1}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__secondary{padding:12px 0;border:0;background:none;color:var(--action);font:500 14px/1.5 var(--sans)}
#lesson-dialog.atlas-lesson-page .atlas-reader-content :is(button:disabled,[aria-disabled="true"]){opacity:.45;cursor:default}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__textarea{width:100%;min-height:140px;padding:16px;border:1px solid var(--line);border-radius:3px;background:#fffaf1;font:400 16px/1.7 var(--sans);color:var(--ink);caret-color:var(--action)}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz-summary__hero{padding:28px 0;border:0;border-block:1px solid var(--line);border-radius:0;background:none;box-shadow:none}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz-summary__metrics{gap:24px;border:0;background:none;box-shadow:none}
@media(min-width:761px){.atlas-lesson-page .reader-program>summary{display:none}}
@media(max-width:1100px){
  .atlas-lesson-page .reader-header{gap:24px;padding-inline:32px}
  .atlas-lesson-page .reader-layout{grid-template-columns:250px minmax(0,1fr)}
  .atlas-lesson-page .reader-sidebar{padding:34px 18px 32px 24px}
  .atlas-lesson-page .reader-main{padding:46px 36px 52px}
  .atlas-lesson-page .reader-intro h1{font-size:52px}
}
@media(max-width:760px){
  .atlas-lesson-page .reader-header{min-height:76px;grid-template-columns:1fr auto auto;gap:8px 12px;padding:16px 22px}
  .atlas-lesson-page .reader-brand{font-size:35px}
  .atlas-lesson-page .reader-back{font-size:12px;min-height:38px}
  .atlas-lesson-page .reader-header-course,.atlas-lesson-page .reader-header-count{display:none}
  .atlas-lesson-page .reader-layout{display:block}
  .atlas-lesson-page .reader-sidebar{position:static;max-height:none;padding:22px 22px 0;overflow:visible}
  .atlas-lesson-page .reader-course-link,.atlas-lesson-page .reader-course-meta,.atlas-lesson-page .reader-progress{display:none}
  .atlas-lesson-page .reader-program{border:1px solid var(--line);border-radius:3px;background:transparent}
  .atlas-lesson-page .reader-program>summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:50px;padding:14px 16px;cursor:pointer;list-style:none}
  .atlas-lesson-page .reader-program>summary::-webkit-details-marker{display:none}
  .atlas-lesson-page .reader-program nav{padding:0 5px 8px}
  .atlas-lesson-page .reader-program a{min-height:48px;font-size:13px;padding:12px 10px}
  .atlas-lesson-page .reader-main{min-height:0;border:0;padding:34px 22px 44px}
  .atlas-lesson-page .reader-intro{margin-bottom:32px}
  .atlas-lesson-page .reader-intro h1{font-size:42px;line-height:1.04}
  .atlas-lesson-page .reader-lesson-meta{font-size:11px;margin-top:18px;gap:8px 14px}
  #lesson-dialog.atlas-lesson-page .lesson-body{font-size:16px;line-height:1.85}
  #lesson-dialog.atlas-lesson-page .lesson-body :is(h2,h3){margin-top:40px;font-size:32px;line-height:1.13}
  #lesson-dialog.atlas-lesson-page .lesson-body :is(h4,.lesson-key-takeaways){font-size:18px;line-height:1.4;margin-top:28px}
  #lesson-dialog.atlas-lesson-page .lesson-body p{margin-bottom:22px}
  #lesson-dialog.atlas-lesson-page .lesson-body blockquote{font-size:16px;padding-block:20px}
  #lesson-dialog.atlas-lesson-page .lesson-body .crm-step{grid-template-columns:1fr;gap:7px;padding:17px 0}
  #lesson-dialog.atlas-lesson-page .lesson-body .crm-title{font-size:29px}
  #lesson-dialog.atlas-lesson-page .lesson-body .crm-desc{font-size:14px}
  #lesson-dialog.atlas-lesson-page .lesson-body table{font-size:13px;min-width:520px}
  #lesson-dialog.atlas-lesson-page .lesson-body .lesson-modes-table{min-width:650px}
  #lesson-dialog.atlas-lesson-page .lesson-body :is(td,th){padding:14px}
  .atlas-lesson-page .reader-footer{gap:20px;margin-top:42px;padding-top:24px}
  .atlas-lesson-page .reader-footer strong{font-size:14px;line-height:1.5}
  .atlas-lesson-page .reader-footer-label{font-size:10px}
  #lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__prompt{font-size:27px}
  #lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz__option{padding:15px;font-size:15px}
  #lesson-dialog.atlas-lesson-page .atlas-reader-content .course-quiz-summary__metrics{grid-template-columns:1fr}
}
@media(max-width:360px){
  .atlas-lesson-page .reader-header{padding-inline:18px;gap:12px}
  .atlas-lesson-page .reader-sidebar{padding-inline:18px}
  .atlas-lesson-page .reader-main{padding-inline:18px}
  .atlas-lesson-page .reader-intro h1{font-size:37px}
}
@media(prefers-reduced-motion:reduce){.atlas-lesson-page .reader-program a{transition:none}}
body:has(.atlas-lesson-page) .reader-skip{position:fixed;left:24px;top:-100px;z-index:100;background:#26251f;color:#f7f5ef;padding:12px 18px;text-decoration:none}
body:has(.atlas-lesson-page) .reader-skip:focus{top:12px}
.atlas-lesson-page #lesson-main:focus{outline:none}

.atlas-lesson-page .reader-intro>p.reader-lesson-meta{font:400 12px/1.5 var(--sans);margin-top:22px;color:var(--muted)}
#lesson-dialog.atlas-lesson-page .lesson-body .crm{border-top:0;padding-top:0}
@media(max-width:760px){.atlas-lesson-page .reader-intro>p.reader-lesson-meta{font-size:11px;margin-top:18px}}
/* Avoid a non-scrolling body scroll container from the academy's overflow-x rule. */
html:has(.atlas-lesson-page),body:has(.atlas-lesson-page){overflow-x:clip;overflow-y:visible}
.atlas-lesson-page .reader-footer :is(.reader-previous,.reader-next){display:grid;grid-template-columns:18px minmax(0,1fr);gap:12px;align-items:start}
.atlas-lesson-page .reader-footer .reader-next{grid-template-columns:minmax(0,1fr) 18px}
.atlas-lesson-page .reader-footer-label{display:block;margin-bottom:6px}
.atlas-lesson-page .reader-footer strong{display:block}
.atlas-lesson-page .reader-footer svg{margin-top:3px;flex:none}

#lesson-dialog.atlas-lesson-page .lesson-body blockquote>:first-child{margin-top:0}
#lesson-dialog.atlas-lesson-page .lesson-body blockquote>:last-child{margin-bottom:0}

.atlas-lesson-page .reader-paywall{display:block;border-block:1px solid var(--line);padding:32px 0}
.atlas-lesson-page .reader-paywall h2{font-size:36px;line-height:1.12;margin:0 0 14px}
.atlas-lesson-page .reader-paywall p{margin:0;font:400 15px/1.75 var(--sans);color:#514f45}
.atlas-lesson-page .reader-offer-options{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);margin-top:30px}
.atlas-lesson-page .reader-offer-option{display:flex;flex-direction:column;align-items:stretch;min-width:0}
.atlas-lesson-page .reader-offer-course{padding-right:32px;border-right:1px solid var(--line)}
.atlas-lesson-page .reader-offer-bundle{padding-left:32px}
.atlas-lesson-page .reader-offer-option h3{font:500 29px/1.15 var(--serif);margin:0 0 14px;color:var(--ink)}
.atlas-lesson-page .reader-offer-option>p{min-height:54px}
.atlas-lesson-page .reader-offer-cost{display:grid;gap:8px;margin:24px 0}
.atlas-lesson-page .reader-offer-amount{font:600 36px/1.2 var(--sans);font-variant-numeric:lining-nums tabular-nums;color:var(--ink);white-space:nowrap}
.atlas-lesson-page .reader-offer-cost>span{font:400 12px/1.5 var(--sans);color:var(--muted)}
.atlas-lesson-page .reader-offer-option .button{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:50px;padding:15px 20px;text-decoration:none;margin-top:auto}
.atlas-lesson-page .reader-offer-option .button svg{flex:none}
.atlas-lesson-page .reader-offer-option .button:hover{background:#403d32}
.atlas-lesson-page .reader-offer-course .button{background:transparent;color:var(--ink);border:1px solid #bfb6a7}
.atlas-lesson-page .reader-offer-course .button:hover{background:#eee8dd}
.atlas-lesson-page .reader-offer-account{display:grid;gap:8px;margin-top:26px}
.atlas-lesson-page .reader-offer-account p,.atlas-lesson-page .reader-paywall .reader-offer-note{font-size:12px;color:var(--muted)}
.atlas-lesson-page .reader-offer-login a{color:var(--action);text-decoration:underline;text-underline-offset:4px}
.atlas-lesson-page .reader-paywall .reader-offer-note{margin-top:12px;min-height:0}
@media(max-width:760px){
 .atlas-lesson-page .reader-paywall{padding-block:26px}
 .atlas-lesson-page .reader-paywall h2{font-size:32px}
 .atlas-lesson-page .reader-offer-options{grid-template-columns:1fr;gap:28px;margin-top:26px}
 .atlas-lesson-page .reader-offer-course{padding:0 0 28px;border-right:0;border-bottom:1px solid var(--line)}
 .atlas-lesson-page .reader-offer-bundle{padding:0}
 .atlas-lesson-page .reader-offer-option>p{min-height:0}
 .atlas-lesson-page .reader-offer-cost{margin-block:20px}
 .atlas-lesson-page .reader-offer-amount{font-size:34px}
 .atlas-lesson-page .reader-offer-account{display:grid;gap:10px}
}


.atlas-lesson-page .reader-offer-owned{font-size:28px;white-space:normal;line-height:1.15}

.atlas-lesson-page .reader-session-note{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;max-width:780px;margin:0 auto 32px;padding:18px 0;border-block:1px solid var(--line);font:400 13px/1.6 var(--sans);color:var(--ink)}
.atlas-lesson-page .reader-session-note p{flex-basis:100%;margin:0;max-width:65ch}
.atlas-lesson-page .reader-session-note :is(a,button){display:inline-flex;align-items:center;min-height:44px;padding:0;border:0;background:transparent;color:var(--action);font:500 13px/1.4 var(--sans);text-decoration:underline;text-underline-offset:4px;cursor:pointer}
.atlas-lesson-page .reader-session-note :is(a,button):hover{color:var(--ink)}

/* The lesson uses the public Atlas header; route navigation belongs to the syllabus. */
.atlas-lesson-page .reader-sidebar>.reader-back{margin-bottom:16px}
@media(min-width:1101px){
  .atlas-lesson-page .reader-sidebar{top:72px;max-height:calc(100dvh - 72px)}
}
@media(max-width:760px){
  .atlas-lesson-page .reader-course-link,.atlas-lesson-page .reader-course-meta{display:block}
  .atlas-lesson-page .reader-course-link{font-size:28px}
}


/* Match the public catalog container, without doubling its outer gutters. */
.atlas-lesson-page .reader-sidebar{padding-left:0}
.atlas-lesson-page .reader-main{padding-right:0}
@media(min-width:1101px) and (max-width:1150px){
  #lesson-dialog.atlas-lesson-page{width:calc(100% - 64px)}
}
@media(max-width:1100px){
  #lesson-dialog.atlas-lesson-page{width:calc(100% - 48px);max-width:720px}
}
@media(max-width:760px){
  .atlas-lesson-page .reader-sidebar,.atlas-lesson-page .reader-main{padding-inline:0}
}
@media(max-width:360px){
  #lesson-dialog.atlas-lesson-page{width:calc(100% - 32px)}
}

/* Match the font rasterization used by the standalone Atlas home and catalog. */
body:has(.atlas-lesson-page){-webkit-font-smoothing:auto;-moz-osx-font-smoothing:auto}

/* Download resources are compact reading aids, separate from lesson headings. */
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download{margin:40px 0 0;padding:24px 0 0;border-top:1px solid var(--line)}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .sj-text-downloads{margin:0 0 20px;font:500 28px/1.2 var(--serif);letter-spacing:-.02em;color:var(--ink)}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__list{gap:0}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__wrapper{grid-template-columns:64px minmax(0,1fr);align-items:start;gap:20px;padding:24px 0;background:transparent!important;border-radius:0;border-bottom:1px solid var(--line)}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__image{width:64px;height:64px;background:transparent;border-radius:0}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__image img{width:64px;height:64px;border:0;border-radius:0;padding:0;box-shadow:none}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__content{grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:start}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__text_wrapper{gap:8px}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__header{margin:0;font:600 18px/1.4 var(--sans);letter-spacing:0;color:var(--ink);text-wrap:pretty;overflow-wrap:anywhere}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__text{margin:0;font:400 14px/1.65 var(--sans);letter-spacing:0;color:#605d53}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__link{display:inline-flex;align-self:start;gap:8px;min-height:44px;padding:12px 16px;border:1px solid var(--line);border-radius:3px;background:transparent;color:var(--ink);font:500 14px/1.3 var(--sans);text-decoration:none}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__link span{color:inherit;font:inherit}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__link svg{width:16px;height:16px;flex:none}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__link:hover{background:#eee8dd;border-color:#bfb6a7;color:var(--ink)}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__link:focus-visible{background:#eee8dd;outline:2px solid var(--action);outline-offset:4px}
@media(max-width:760px){
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__wrapper{grid-template-columns:48px minmax(0,1fr);gap:16px;padding:20px 0}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__image,#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__image img{width:48px;height:48px}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__content{grid-template-columns:minmax(0,1fr);gap:16px}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .resource__link{justify-self:start}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content .ai-fluency-resource-download .sj-text-downloads{font-size:26px}
}

/* Keep block code readable and copying discoverable without hover. */
#lesson-dialog.atlas-lesson-page .lesson-body pre code{font-size:inherit;line-height:inherit}
#lesson-dialog.atlas-lesson-page .lesson-body .course-code-block > pre{padding-top:64px}
#lesson-dialog.atlas-lesson-page .lesson-body .course-code-copy-button{width:44px;height:44px;opacity:1;color:var(--ink);background:var(--paper);border-color:var(--line)}
/* Prose prompts wrap for reading; executable code keeps its original lines. */
#lesson-dialog.atlas-lesson-page .lesson-body pre.course-prompt-example{white-space:pre-wrap;overflow-wrap:anywhere}
/* MCP subsections sit below section headings without repeating their scale. */
#lesson-dialog.atlas-lesson-page .lesson-body h3.lesson-subheading{margin:36px 0 16px;font-size:28px;line-height:1.25}
#lesson-dialog.atlas-lesson-page .atlas-reader-content .course-text-content[data-lesson-id="296694"] .lesson-downloads ul{display:flex;flex-wrap:wrap;gap:10px 12px}
@media(max-width:700px){
  #lesson-dialog.atlas-lesson-page .lesson-body h3.lesson-subheading{margin-top:30px;font-size:24px}
}

/* Keep course context fixed while the lesson list scrolls independently. */
@media(min-width:761px){
  .atlas-lesson-page .reader-sidebar{display:flex;flex-direction:column;overflow:hidden}
  .atlas-lesson-page .reader-sidebar> :not(.reader-program){flex-shrink:0}
  .atlas-lesson-page .reader-program{min-height:0;overflow-y:auto;overscroll-behavior-y:contain;scrollbar-width:thin;scrollbar-color:#c9bdab transparent;scrollbar-gutter:stable}
}

/* MCP practices use the same readable type and a self-contained code viewer. */
#lesson-dialog.atlas-lesson-page .course-code-walkthrough--static{font-family:var(--sans);grid-template-columns:minmax(200px, .8fr) minmax(0, 2fr);height:680px;max-height:85dvh;gap:16px}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough--static .course-code-walkthrough__nav{padding:12px}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough--static :is(.course-code-walkthrough__step-button,.course-code-walkthrough__control){font-family:var(--sans)!important;font-size:14px!important;line-height:1.5!important}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough--static .course-code-walkthrough__step-copy :is(p,li){font-family:var(--sans)!important;font-size:14px!important;line-height:1.65!important}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough--static .course-code-walkthrough__files{width:145px;min-width:145px;flex:0 0 145px}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough--static .course-code-walkthrough__editor-host{min-height:0;overflow:hidden}
#lesson-dialog.atlas-lesson-page .lesson-body pre.course-code-walkthrough__static-code{height:100%;max-height:100%;margin:0;padding:16px 0;border:0;border-radius:0;overflow:auto;overscroll-behavior:contain;background:var(--paper);font:13px/1.75 ui-monospace,SFMono-Regular,Consolas,monospace;tab-size:4;scrollbar-width:thin}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__static-code>code{display:block;font:inherit}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__code-line{display:grid;grid-template-columns:calc(3ch + 24px) minmax(0,1fr);padding-right:16px;white-space:normal}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__code-line>span{white-space:pre-wrap;overflow-wrap:anywhere}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__code-line::before{content:attr(data-line);display:inline-block;box-sizing:content-box;width:3ch;padding:0 12px;text-align:right;color:var(--muted);user-select:none;font-variant-numeric:tabular-nums}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__code-line.is-highlighted{background:#e8e6d8}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__static-code:focus-visible{outline:2px solid var(--action);outline-offset:-2px}
#lesson-dialog.atlas-lesson-page .lesson-body :is([data-lesson-id="295172"],[data-lesson-id="291036"],[data-lesson-id="295839"],[data-lesson-id="296285"]) h2.sj-text-downloads{margin:0 0 18px;font-size:26px}
@media(max-width:1000px){
  #lesson-dialog.atlas-lesson-page .course-code-walkthrough--static{grid-template-columns:minmax(170px,.9fr) minmax(0,2fr)}
}
@media(max-width:760px){
  #lesson-dialog.atlas-lesson-page .course-code-walkthrough--static{grid-template-columns:minmax(0,1fr);height:auto;max-height:none;gap:16px}
  #lesson-dialog.atlas-lesson-page .course-code-walkthrough--static .course-code-walkthrough__nav{max-height:340px}
  #lesson-dialog.atlas-lesson-page .course-code-walkthrough--static .course-code-walkthrough__editor-shell{height:440px}
  #lesson-dialog.atlas-lesson-page .course-code-walkthrough--static .course-code-walkthrough__files{width:auto;min-width:0;flex-basis:auto}
}

#lesson-dialog.atlas-lesson-page .course-code-walkthrough__static-code .syntax-token--comment{color:#70685e;font-style:italic}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__static-code :is(.syntax-token--constant,.syntax-token--number,.syntax-token--property){color:#8a3d13}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__static-code .syntax-token--keyword{color:#7041a6;font-weight:500}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__static-code .syntax-token--string{color:#2f6f44}
#lesson-dialog.atlas-lesson-page .course-code-walkthrough__static-code .syntax-token--variable{color:#0f6c8f}

/* Education courses: time metadata and readable resource labels. */
#lesson-dialog.atlas-lesson-page .lesson-body :is([data-lesson-id="326777"],[data-lesson-id="326779"],[data-lesson-id="326781"],[data-lesson-id="326782"],[data-lesson-id="326790"],[data-lesson-id="326791"],[data-lesson-id="326792"],[data-lesson-id="326793"],[data-lesson-id="327248"],[data-lesson-id="327277"],[data-lesson-id="327278"],[data-lesson-id="327279"],[data-lesson-id="327280"],[data-lesson-id="327281"],[data-lesson-id="327282"],[data-lesson-id="327284"]) .lesson-estimated-time{margin:0 0 28px;font:400 13px/1.5 var(--sans);color:var(--muted)}
#lesson-dialog.atlas-lesson-page .lesson-estimated-time em{font-style:normal}
#lesson-dialog.atlas-lesson-page .lesson-body :is([data-lesson-id="326779"],[data-lesson-id="326791"],[data-lesson-id="327277"],[data-lesson-id="327278"],[data-lesson-id="327279"],[data-lesson-id="327280"],[data-lesson-id="327281"],[data-lesson-id="327282"],[data-lesson-id="327284"]) h2.sj-text-downloads{margin:0 0 18px;font-size:26px}
#lesson-dialog.atlas-lesson-page .lesson-body :is([data-lesson-id="326779"],[data-lesson-id="326791"],[data-lesson-id="327277"],[data-lesson-id="327278"],[data-lesson-id="327279"],[data-lesson-id="327280"],[data-lesson-id="327281"],[data-lesson-id="327282"],[data-lesson-id="327284"]) .lesson-downloads ul{display:grid;gap:10px;margin:0;padding:0;list-style:none}
#lesson-dialog.atlas-lesson-page .lesson-body :is([data-lesson-id="326779"],[data-lesson-id="326791"],[data-lesson-id="327277"],[data-lesson-id="327278"],[data-lesson-id="327279"],[data-lesson-id="327280"],[data-lesson-id="327281"],[data-lesson-id="327282"],[data-lesson-id="327284"]) .lesson-downloads li{min-width:0;margin:0;padding:0}
#lesson-dialog.atlas-lesson-page .lesson-body :is([data-lesson-id="326779"],[data-lesson-id="326791"],[data-lesson-id="327277"],[data-lesson-id="327278"],[data-lesson-id="327279"],[data-lesson-id="327280"],[data-lesson-id="327281"],[data-lesson-id="327282"],[data-lesson-id="327284"]) .lesson-downloads a{display:flex;align-items:center;gap:10px;width:fit-content;max-width:100%;min-height:44px;white-space:normal;text-align:left}
#lesson-dialog.atlas-lesson-page .lesson-body :is([data-lesson-id="326779"],[data-lesson-id="326791"],[data-lesson-id="327277"],[data-lesson-id="327278"],[data-lesson-id="327279"],[data-lesson-id="327280"],[data-lesson-id="327281"],[data-lesson-id="327282"],[data-lesson-id="327284"]) .lesson-downloads a>span:last-child{min-width:0;overflow-wrap:anywhere}
#lesson-dialog.atlas-lesson-page .lesson-body :is([data-lesson-id="326779"],[data-lesson-id="326791"],[data-lesson-id="327277"],[data-lesson-id="327278"],[data-lesson-id="327279"],[data-lesson-id="327280"],[data-lesson-id="327281"],[data-lesson-id="327282"],[data-lesson-id="327284"]) .lesson-downloads-icon{flex:none}

/* Keep the long Russian privacy title whole on narrow screens. */
@media(max-width:480px){
  #lesson-dialog[data-course-slug="ai-fluency-for-nonprofits"][data-lesson-id="376883"] .reader-intro h1{font-size:clamp(28px,9vw,36px)}
}