@font-face{font-family:Manrope;src:url('fonts/body.ttf')}@font-face{font-family:Editorial;src:url('fonts/serif.ttf')}*{box-sizing:border-box} :root{--bg:#f7f8f4;--paper:#fff;--ink:#20352e;--muted:#718078;--green:#164b3c;--lime:#d9eb9d;--line:#dfe5dc;--serif:Editorial,Georgia,serif;--sans:Manrope,'Trebuchet MS',sans-serif}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.65 var(--sans)}button,input,textarea,select{font:inherit}button,a,input,select,textarea{outline-offset:4px}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit} .sidebar{position:fixed;inset:0 auto 0 0;width:240px;background:#edf1e8;border-right:1px solid var(--line);padding:34px 23px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;gap:12px;align-items:center;font-size:24px;font-weight:800;letter-spacing:-1px}.brand-icon{display:grid;place-items:center;background:var(--green);color:var(--lime);border-radius:12px;width:41px;height:46px;font:italic 34px var(--serif)}.brand-sub{display:block;font-size:8px;letter-spacing:2.5px;margin-top:-3px;color:var(--muted)}.eyebrow{font-size:10px;letter-spacing:1.7px;font-weight:800;color:var(--muted)}.side-label{margin:49px 13px 16px}nav{display:grid;gap:7px}nav a{padding:12px 13px;display:flex;gap:14px;align-items:center;border-radius:7px;color:#627366;font-size:18px}nav a span{font-size:13px;font-weight:700}nav a.active{background:#dfe8d7;color:#244d38}nav a b{font-size:10px;margin-left:auto;background:var(--green);color:white;border-radius:5px;padding:1px 7px}.sidebar-progress{margin:40px 13px 20px}.side-count{font:32px var(--serif);margin-top:10px}.small{font-size:11px;color:var(--muted)}.progress{height:5px;border-radius:9px;background:#e2e8dd;overflow:hidden;margin:14px 0}.progress i{display:block;background:#65946c;height:100%;transition:width .4s}.sidebar-bottom{margin-top:auto;font-size:10px;color:var(--muted)}.sidebar-bottom button{border:0;background:none;font-size:11px;display:block;padding:5px 0;font-weight:700}.sidebar-bottom a{text-decoration:underline}.workspace{margin-left:240px}.topbar{height:85px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 42px;gap:24px;background:#ffffff65}.breadcrumb{font-size:9px;letter-spacing:1.3px;color:var(--muted)}.breadcrumb b{font-weight:600;color:var(--ink)}.search-wrap{margin-left:auto;display:flex;align-items:center;gap:9px;background:white;border:1px solid var(--line);padding:7px 11px;border-radius:7px}.search-wrap input{border:0;background:none;width:210px;font-size:11px;color:var(--ink);outline:0}.search-wrap kbd{font-size:10px;border:1px solid var(--line);padding:0 5px;border-radius:3px}.avatar{display:grid;place-items:center;border-radius:50%;width:32px;height:32px;background:#e2e8dc;font-size:11px;font-weight:800}main{max-width:1390px;padding:40px 44px 60px;margin:auto;min-height:calc(100vh - 150px);animation:arrive .35s ease}h1,h2,h3,p{margin-top:0}h1{font:46px/1.15 var(--serif);letter-spacing:-1.4px;margin:9px 0 12px}h2{font:27px/1.3 var(--serif);letter-spacing:-.5px}h3{font-size:15px;line-height:1.5}p{color:var(--muted)}.page-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:28px}.page-heading p{margin-bottom:0;font-size:12px}.button{display:inline-flex;align-items:center;justify-content:center;gap:15px;background:var(--green);color:white;border:1px solid var(--green);padding:11px 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#93b49a77;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;font:32px var(--serif);color:var(--lime)}.orbit-inner span{font:9px var(--sans);letter-spacing:2px;margin-top:8px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:33px}.stat{border:1px solid var(--line);border-radius:8px;padding:19px 22px;background:#fff}.stat .value{font:29px var(--serif);margin:6px 0}.stat small{font-size:10px;color:var(--muted)}.stat .eyebrow{font-size:9px;letter-spacing:1px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:25px 0 17px}.section-heading h2{font-size:25px;margin:0}.text-link{font-size:11px;font-weight:800;color:var(--green)}.module-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.module{border:1px solid var(--line);background:white;border-radius:9px;padding:21px;position:relative;transition:transform .15s,box-shadow .15s}.module:hover{transform:translateY(-3px);box-shadow:0 8px 20px #20352e09}.module-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.module-icon{width:35px;height:35px;background:#eef3e9;border-radius:8px;display:grid;place-items:center;color:#527b4e;font-size:18px}.module-index{font-size:9px;color:#97a298;letter-spacing:1px}.module h3{margin:0 0 8px}.module p{font-size:11px;min-height:35px;margin:0 0 20px}.module-meta{display:flex;justify-content:space-between;font-size:9px;color:var(--muted)}.module .progress{margin:10px 0 0;height:3px}.tag{display:inline-block;border:1px solid var(--line);background:#f6f8f1;color:#67815d;border-radius:4px;padding:2px 7px;font-size:9px;letter-spacing:.3px}.tag.warn{color:#9b6e33;background:#fcf6ea;border-color:#eaddbc}.filters{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.filters button{border:1px solid var(--line);border-radius:30px;padding:7px 15px;background:white;font-size:11px}.filters button.active{background:var(--green);color:white;border-color:var(--green)}footer{border-top:1px solid var(--line);padding:19px 44px;display:flex;justify-content:space-between;color:#8a968b;font-size:8px;letter-spacing:1.3px}.reader-layout{display:grid;grid-template-columns:minmax(0,1fr) 225px;gap:30px;align-items:start}.reader-top{margin-bottom:25px}.reader-top h1{font-size:39px}.reader-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.reading-section{background:white;border:1px solid var(--line);border-radius:8px;padding:28px 31px;margin-bottom:18px;scroll-margin-top:25px}.reading-section.done{border-left:3px solid #8caa70}.section-title{display:flex;gap:15px;align-items:flex-start;justify-content:space-between;margin-bottom:17px}.section-title h2{font-size:25px;margin:0}.check-label{display:flex;align-items:center;gap:6px;font-size:10px;white-space:nowrap;padding-top:6px;color:var(--muted)}input[type=checkbox]{accent-color:var(--green);width:15px;height:15px}.prose{font-size:13px;line-height:1.85;overflow-wrap:anywhere;color:#3a4940}.prose p{color:inherit}.prose h3{margin-top:26px;font-size:16px}.prose h4{margin-top:20px}.prose ul,.prose ol{padding-left:22px}.prose li{margin:6px 0}.prose strong{font-weight:800;color:#213e31}.prose blockquote{margin:15px 0;border-left:3px solid #c5d5b1;padding:8px 17px;background:#f4f7ef}.prose pre{overflow:auto;background:#edf1e9;padding:16px;border-radius:6px;font-size:11px}.prose code{font-size:11px;background:#edf1e9;padding:2px 4px;border-radius:3px}.prose table{display:block;overflow:auto;border-collapse:collapse;width:100%;font-size:11px;margin:20px 0}.prose td,.prose th{border:1px solid var(--line);padding:9px 13px;text-align:left;min-width:110px}.prose th{background:#f1f5eb}.prose a{color:#327b58;text-decoration:underline}.prose mark{background:#f8e599;color:inherit;border-radius:2px}.prose mark.green{background:#d7edc1}.reader-rail{position:sticky;top:20px}.rail-box{border:1px solid var(--line);padding:19px;background:#f0f3eb;border-radius:8px;margin-bottom:17px}.rail-box .eyebrow{margin-bottom:12px}.rail-box p{font-size:11px}.toc{max-height:40vh;overflow:auto;display:grid;gap:10px}.toc a{font-size:10px;color:#697b6b}.toc a:hover{color:var(--green)}textarea{display:block;width:100%;background:white;border:1px solid var(--line);border-radius:6px;resize:vertical;min-height:150px;padding:12px;font-size:12px;color:var(--ink)}.saved-label{font-size:9px;color:var(--muted);margin-top:7px}.section-bottom{display:flex;gap:15px;margin-top:22px;padding-top:14px;border-top:1px solid #eef1ea}.section-bottom button{background:none;border:0;font-size:10px;color:var(--muted);padding:0}.section-bottom button.flagged{color:#b17b28}.notice{font-size:10px;color:var(--muted);border-left:2px solid #c9d6ba;padding-left:12px;margin:20px 0}.recall-shell{max-width:800px;margin:0 auto}.recall-card{padding:45px;background:white;border:1px solid var(--line);border-radius:12px;min-height:335px;margin:23px 0}.recall-card h2{font-size:30px;margin:32px 0}.recall-answer{border-top:1px solid var(--line);padding-top:24px;font-size:15px;color:var(--ink)}.recall-controls{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.empty{padding:45px;border:1px dashed #cad5c3;border-radius:9px;text-align:center;margin:20px 0}.empty h2{margin-bottom:8px}.empty p{font-size:12px}.notebook-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}.note-card{background:white;border:1px solid var(--line);border-radius:8px;padding:23px}.note-card blockquote{font:18px/1.5 var(--serif);margin:15px 0;padding-left:13px;border-left:3px solid #d6dc9b}.note-card .note-body{white-space:pre-wrap;color:#516153;font-size:12px}.note-card textarea{margin:14px 0}.note-card .note-meta{display:flex;justify-content:space-between;gap:15px;align-items:center}.note-card button{background:none;border:0;font-size:10px;color:var(--muted)}.result{display:block;border-bottom:1px solid var(--line);padding:19px 0}.result h3{margin:5px 0}.result p{font-size:12px;margin:0}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%) translateY(20px);background:#203d30;color:white;padding:12px 23px;border-radius:8px;opacity:0;pointer-events:none;z-index:60;font-size:12px;transition:.2s}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}#selection-tools{position:absolute;z-index:40;background:var(--green);padding:5px;border-radius:7px;box-shadow:0 4px 20px #0002}#selection-tools button{border:0;background:none;color:white;padding:7px 10px;font-size:11px}dialog{border:1px solid var(--line);border-radius:12px;padding:30px;width:min(520px,90vw);color:var(--ink)}dialog::backdrop{background:#142b2466;backdrop-filter:blur(3px)}dialog blockquote{font:18px var(--serif);border-left:3px solid var(--lime);padding-left:15px;margin:15px 0;max-height:130px;overflow:auto}dialog label{font-size:11px}dialog textarea{margin-top:7px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.mobile-menu{display:none}.skip{position:fixed;top:-100px;background:white;z-index:100;padding:10px}.skip:focus{top:0}@keyframes arrive{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}@media(min-width:1500px){main{padding-top:55px}.hero{min-height:240px}}@media(max-width:1150px){.sidebar{width:210px;padding:30px 17px}.workspace{margin-left:210px}main{padding:30px 25px}.topbar{padding:0 25px}.module-grid{grid-template-columns:repeat(2,1fr)}.reader-layout{grid-template-columns:minmax(0,1fr) 190px;gap:18px}.stats{gap:10px}.stat{padding:15px}.search-wrap input{width:160px}}@media(max-width:800px){.sidebar{transform:translateX(-100%);transition:transform .2s;width:240px;box-shadow:10px 0 50px #0002}.sidebar.open{transform:none}.workspace{margin:0}.mobile-menu{display:block;background:none;border:0;font-size:19px}.topbar{height:65px;padding:0 18px;gap:12px}.breadcrumb{display:none}.search-wrap{width:100%;margin:0}.search-wrap input{width:100%}.avatar{flex-shrink:0}main{padding:26px 20px 40px}h1{font-size:35px}.page-heading{align-items:start}.page-heading>.button{padding:10px;font-size:10px}.hero{grid-template-columns:1fr 130px}.hero-copy{padding:25px}.hero h2{font-size:27px}.orbit:before{width:180px;height:180px}.orbit:after{width:140px;height:140px}.orbit-inner{width:95px;height:95px}.stats{grid-template-columns:repeat(2,1fr)}.reader-layout{display:flex;flex-direction:column}.reader-rail{position:static;order:-1;width:100%}.reader-rail .toc-box{display:none}.reader-rail .rail-box{margin-bottom:0}.reader-rail textarea{min-height:85px}.reading-section{padding:21px}.reader-top h1{font-size:32px}.notebook-grid{grid-template-columns:1fr}.recall-card{padding:25px}.recall-card h2{font-size:26px}footer{padding:17px 20px;font-size:7px}.reader-rail{display:grid;grid-template-columns:1fr 1fr;gap:14px}}@media(max-width:480px){.module-grid{grid-template-columns:1fr}.hero{grid-template-columns:1fr}.orbit{display:none}.hero-copy{padding:24px}.section-title{flex-direction:column;gap:5px}.page-heading{flex-direction:column;align-items:start;gap:14px}.reader-rail{grid-template-columns:1fr}.reader-rail .tip-box{display:none}.module p{min-height:0}.recall-controls .button{padding:11px 14px}footer span:last-child{display:none}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/* A roomy, persistent writing surface alongside the course. */
.reader-layout{grid-template-columns:minmax(0,1fr) 340px;gap:25px}.reader-rail{top:18px}.notes-box{background:#edf2e6;padding:22px}.notes-heading{display:flex;justify-content:space-between;align-items:start;gap:12px}.notes-heading p{font-size:11px;margin:4px 0 15px}.notes-heading .eyebrow{margin-bottom:0}.notes-heading button{background:none;border:0;padding:0;font-size:10px;white-space:nowrap}.notes-box textarea{min-height:420px;height:48vh;max-height:70vh;font-size:14px;line-height:1.85;padding:17px;background:#fffefa;resize:vertical}.notes-hint{margin:15px 0 9px;font-size:10px;color:var(--muted)}.notes-expanded{grid-template-columns:minmax(330px,1fr) minmax(420px,1.15fr)}.notes-expanded .notes-box textarea{height:65vh;max-height:75vh}.notes-expanded .toc-box{display:none}.notes-box:focus-within{box-shadow:0 0 0 2px #9eb28055}.reading-section .section-title h2{font-size:24px}.exercise-intro{font-size:12px;margin-bottom:20px}.exercise-list{display:grid;gap:20px}.exercise{border:1px solid var(--line);border-radius:8px;padding:22px;background:#fbfcf8;min-width:0}.exercise-prompt{font-weight:700;font-size:14px;line-height:1.7;color:#264432}.exercise-prompt p:last-child{margin-bottom:15px}.exercise-label{font-size:10px;letter-spacing:.3px;display:block;color:var(--muted);margin:10px 0 7px}.scenario-attempt{font-size:13px;line-height:1.8;min-height:130px;background:white;padding:14px}.exercise-reveal{margin-top:17px;border-top:1px solid var(--line);padding-top:13px}.exercise-reveal summary{font-size:11px;font-weight:800;cursor:pointer;color:var(--green);list-style:none;display:flex;justify-content:space-between;gap:15px}.exercise-reveal summary::-webkit-details-marker{display:none}.exercise-reveal[open] summary{margin-bottom:16px}.exercise-answer{border-left:3px solid #cbdcaa;padding-left:15px;font-size:13px}.exercise-rating{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:20px}.exercise-rating>span{flex:1;min-width:100px;font-size:10px}.exercise[data-rated=got]{border-color:#acc696}.exercise[data-rated=again]{border-color:#d5ba7f}.practice-toolbar{display:flex;gap:18px;align-items:center;flex-wrap:wrap;padding:0 0 20px;border-bottom:1px solid var(--line);margin-bottom:20px}.practice-toolbar .filters{margin:0 auto 0 0}.practice-toolbar label{display:grid;gap:3px;font-size:10px;color:var(--muted)}select{padding:9px 11px;border:1px solid var(--line);background:white;border-radius:6px;color:var(--ink);max-width:280px;font-size:11px}.practice-hub{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.practice-hub .exercise>.eyebrow{display:block;margin-bottom:13px}.pocket-exercise .exercise-prompt{font:21px/1.4 var(--serif)}.pocket-exercise .exercise-prompt p{color:var(--ink)}.pocket-exercise .exercise-reveal{margin-top:3px}.notebook-grid{grid-template-columns:1fr}.note-card textarea{min-height:320px;font-size:14px;line-height:1.9}.note-card .note-body{font-size:14px;line-height:1.9}.note-card{max-width:100%}#note-dialog{width:min(850px,94vw)}#note-dialog textarea{min-height:330px;font-size:14px;line-height:1.9}#selection-tools{display:flex;flex-wrap:wrap;align-items:center;max-width:calc(100vw - 16px)}#selection-tools[hidden]{display:none}mark{box-decoration-break:clone;-webkit-box-decoration-break:clone}mark.green{background:#d7edc1}
@media(max-width:1250px) and (min-width:901px){.reader-layout{grid-template-columns:minmax(0,1fr) 305px;gap:17px}.notes-expanded{grid-template-columns:minmax(0,1fr) minmax(340px,1fr)}.reading-section{padding:23px}.notes-box{padding:18px}}
@media(max-width:900px){.reader-layout,.notes-expanded{display:flex;flex-direction:column}.reader-rail{position:static;order:-1;width:100%;display:block}.reader-rail .toc-box{display:none}.notes-box textarea{min-height:240px;height:280px;max-height:none}.notes-expanded .notes-box textarea{min-height:450px;height:60vh;max-height:none}.reader-layout>article{width:100%;min-width:0}.exercise{padding:18px}.practice-hub{grid-template-columns:1fr}.section-title{flex-wrap:wrap}.notes-box{margin-bottom:10px}}
@media(max-width:480px){.notes-box textarea{min-height:240px;font-size:16px}.scenario-attempt,#note-dialog textarea{font-size:16px}.exercise-rating{gap:6px}.exercise-rating>span{flex-basis:100%;margin-bottom:5px}.practice-toolbar{gap:12px}.practice-toolbar label,.practice-toolbar select{width:100%;max-width:none}.reading-section{padding:19px}.exercise{padding:15px}}
.recall-topic-label{display:grid;gap:6px;font-size:10px;color:var(--muted);margin:20px 0}.recall-topic-label select{max-width:100%;width:100%;font-size:12px}.prose mark{cursor:text}.notice a{text-decoration:underline}.reader-layout>article{min-width:0}.prose pre{white-space:pre;tab-size:2}#selection-tools button:first-child{background:#e5e49c;color:#264432;border-radius:4px}
.reader-rail .toc{max-height:min(20vh,180px)}@media(max-height:850px) and (min-width:901px){.reader-rail .toc-box{display:none}.notes-box textarea{height:45vh;min-height:360px}}
#sync-open{display:flex;flex-direction:column;align-items:start;margin-bottom:12px}#sync-status{font-size:9px;font-weight:400;color:var(--muted);margin-top:2px}.dialog-close{float:right;background:none;border:0;font-size:25px;color:var(--muted);line-height:1}#sync-dialog{width:min(760px,94vw);max-height:90vh;overflow:auto;padding:32px}#sync-dialog h2{font-size:31px;margin:9px 0 14px}#sync-dialog p{font-size:12px}#connect-form{display:grid;gap:8px;margin:20px 0}#connect-form input{width:100%;padding:12px;border:1px solid var(--line);border-radius:6px;background:#fffefa;font-size:16px;color:var(--ink)}#connect-form button{margin-top:7px;justify-self:start}.sync-actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.pair-code-box{background:#edf3e2;padding:24px;border:1px solid var(--line);border-radius:8px;margin:22px 0}.pair-code{font:32px var(--serif);letter-spacing:4px;color:var(--green);margin:12px 0}.device-list>div{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:14px 0;gap:12px;font-size:12px}.device-list small{display:block;font-size:10px;color:var(--muted)}.device-list button{background:none;border:0}.sync-conflict{border:1px solid #d3ba7d;border-radius:8px;padding:18px;margin:18px 0}.sync-conflict h4{margin:0 0 12px}.conflict-versions{display:grid;grid-template-columns:1fr 1fr;gap:13px;font-size:11px}.conflict-versions pre{white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.7 var(--sans);background:#f3f5ee;padding:12px;border-radius:5px;max-height:240px;overflow:auto}.exercise-card-action{margin-top:14px;font-size:10px}.flash-toolbar{display:flex;align-items:end;gap:18px;flex-wrap:wrap;margin:25px 0}.flash-toolbar label{display:grid;gap:5px;font-size:10px;color:var(--muted)}.flash-toolbar .flash-due{display:flex;align-items:center;font-size:11px;margin:0 0 5px}.flash-stage{max-width:850px;margin:20px auto}.flash-position{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:20px 0 15px}.flash-card{display:flex;flex-direction:column;align-items:stretch;text-align:center;width:100%;min-height:330px;background:#fffefa;border:1px solid #cfdac2;border-radius:14px;padding:34px;box-shadow:0 9px 28px #1b3f3010;transition:background .2s,box-shadow .2s}.flash-card:hover{box-shadow:0 10px 35px #1b3f3020}.flash-card.is-back{background:#eff4e6;border-color:#b8cca2}.flash-content{font:27px/1.5 var(--serif);margin:auto 0;padding:32px 12px;color:var(--ink)}.flash-content p{color:var(--ink);margin:0}.flash-card.is-back .flash-content{font:17px/1.85 var(--sans);text-align:left}.flash-flip-hint{font-size:10px;color:var(--muted);margin-top:auto}.flash-ratings,.flash-browse{display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap;margin:24px 0}.flash-browse{justify-content:space-between;margin-top:20px}.flash-instruction{text-align:center;font-size:10px;margin:20px 0}.flash-ratings button{min-width:140px}button:disabled{opacity:.45;cursor:default}.flash-card .prose a{pointer-events:none}.flash-card .prose{overflow-wrap:anywhere;min-width:0}.flash-card .prose pre{text-align:left;font:12px/1.5 monospace;max-width:100%;white-space:pre-wrap}.sidebar{overflow-y:auto}.sidebar-progress{margin-top:25px}.side-label{margin-top:32px}
@media(max-width:600px){.flash-toolbar{gap:12px}.flash-toolbar label:not(.flash-due){width:100%}.flash-toolbar select{max-width:none;width:100%;font-size:14px}.flash-card{padding:24px 16px;min-height:310px}.flash-content{font-size:24px;padding:25px 4px}.flash-card.is-back .flash-content{font-size:15px}.flash-ratings{gap:7px}.flash-ratings button{min-width:0;flex:1;padding:10px 8px;font-size:10px}.flash-position .tag{max-width:65%;text-align:right}.conflict-versions{grid-template-columns:1fr}.pair-code{font-size:25px;letter-spacing:2px}#sync-dialog{padding:24px}}
@media(max-width:600px){.flashcard-page>.page-heading{gap:0;margin-bottom:16px}.flashcard-page>.page-heading>.tag{display:none}.flashcard-page h1{font-size:31px;margin:5px 0 8px}.flashcard-page>.page-heading p{font-size:11px;line-height:1.6}.flashcard-page>.page-heading .eyebrow{font-size:8px}.flash-toolbar{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px;margin:15px 0}.flash-toolbar label:not(.flash-due){width:auto;min-width:0}.flash-toolbar select{width:100%;min-width:0;font-size:11px;padding:8px}.flash-toolbar .flash-due{font-size:10px;margin:0}.flash-toolbar>button{font-size:9px;white-space:normal}.flash-stage{margin:12px auto}.flash-position{margin:12px 0}.flash-position .tag{font-size:8px}.flash-card{min-height:260px}.flash-content{font-size:22px;padding:20px 4px}.flash-ratings{margin:15px 0}.flash-instruction{margin:12px 0;font-size:9px}.flash-browse{margin:15px 0}}
/* Guided exam-prep path */
[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.next-actions,.exam-modes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;margin:23px 0 30px}.next-actions>a,.exam-modes>section{background:#fffefa;border:1px solid var(--line);border-radius:9px;padding:23px;min-width:0}.next-actions h3{font:23px/1.35 var(--serif);margin:13px 0 8px}.next-actions p,.exam-modes p{font-size:11px;margin:0}.next-actions .eyebrow{font-size:8px;letter-spacing:1px}.next-actions a:hover{border-color:#a9be99}.path-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.path-tile{padding:26px;border:1px solid var(--line);border-radius:10px;background:white;min-width:0;transition:transform .15s}.path-tile:hover{transform:translateY(-2px);border-color:#a9be99}.unit-number{font:30px var(--serif);color:#5b8053}.path-tile h3{font:25px/1.3 var(--serif);margin:5px 0 10px}.path-tile p{font-size:12px;min-height:40px}.unit-evidence{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:var(--muted);flex-wrap:wrap}.path-tile .progress{margin-bottom:0}.diagnostic-callout,.results-callout{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:25px 28px;border:1px solid #d5dfc8;border-radius:10px;background:#edf2e4;margin:25px 0}.diagnostic-callout h2,.results-callout h2{margin-bottom:8px}.diagnostic-callout p,.results-callout p{font-size:12px;margin:0}.results-callout{display:block}.results-callout .text-link{display:inline-block;margin-top:15px}.architecture{margin:0 0 25px;border:1px solid var(--line);border-radius:10px;padding:20px;background:#fffefa}.architecture svg{display:block;width:100%;height:auto;max-height:210px}.architecture figcaption{font-size:10px;line-height:1.7;color:var(--muted);margin:0 10px 3px}.level-label{flex-basis:100%;font-size:9px;font-weight:800;letter-spacing:1.4px;color:#6b8555}.level-recognize .level-label{color:#8c793e}.level-optional .level-label{color:#8c9388}.reading-section .section-title{flex-wrap:wrap;gap:8px 15px}.reading-section .section-title h2{flex:1}.reference-links{border:1px solid var(--line);border-radius:8px;padding:23px;margin:20px 0;background:#f0f3e9}.reference-links h3{margin-bottom:12px}.reference-links a{display:inline-block;font-size:11px;color:var(--green);margin:5px 15px 5px 0;text-decoration:underline}.exam-modes h2{font-size:24px;margin:15px 0 10px}.exam-modes .button{margin-top:22px}.exam-modes .eyebrow{font-size:9px}.unit-practice-box{display:flex;align-items:center;flex-wrap:wrap;gap:14px;background:#eef2e8;border:1px solid var(--line);border-radius:8px;padding:20px;margin:20px 0}.unit-practice-box label{font-size:12px;font-weight:700}.unit-practice-box select{max-width:310px}.domain-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px;margin:22px 0}.domain-grid .eyebrow{font-size:9px;letter-spacing:.6px}.saved-run{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line);font-size:12px}.saved-run span{font-size:10px;color:var(--muted)}.quiz-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap;margin-bottom:22px}#exam-timer{font-size:14px;color:var(--green);font-variant-numeric:tabular-nums}.question-shell{max-width:880px;margin:auto}.question-stem{font-size:29px;line-height:1.5;margin:22px 0}.exam-options{padding:0;border:0;margin:24px 0;display:grid;gap:12px;min-width:0}.exam-option{display:flex;align-items:flex-start;gap:13px;padding:18px;background:white;border:1px solid var(--line);border-radius:8px;font-size:13px;line-height:1.8;cursor:pointer}.exam-option:has(input:checked){border-color:#789d65;background:#eff4e6}.exam-option input{margin:5px 0 0;accent-color:var(--green);flex-shrink:0;width:16px;height:16px}.option-letter{font-size:11px;color:var(--muted);font-weight:800;padding-top:2px}.exam-option.correct{border-color:#8bae6e;background:#eef5e6}.exam-option.incorrect{border-color:#cc9d85;background:#fff2eb}.exam-options:disabled .exam-option{cursor:default}.confidence-label{display:flex;align-items:center;gap:15px;flex-wrap:wrap;font-size:11px;color:var(--muted);margin:23px 0}.confidence-label select{font-size:12px}.quiz-actions{display:flex;gap:12px;align-items:center;justify-content:flex-end;flex-wrap:wrap;margin:26px 0}.quiz-actions>.small{margin-right:auto}.answer-feedback{background:white;border:1px solid var(--line);border-radius:10px;padding:25px;margin:25px 0}.answer-feedback.right{border-top:3px solid #79a364}.answer-feedback.wrong{border-top:3px solid #c69766}.answer-feedback>p{font-size:12px}.option-explanation{border-top:1px solid var(--line);padding-top:14px;margin-top:15px;font-size:12px;line-height:1.8}.option-explanation strong{font-size:12px}.option-explanation p{margin:7px 0 0;color:#627464}.question-map{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}.question-map button{min-width:35px;min-height:35px;background:white;border:1px solid var(--line);border-radius:5px;font-size:11px}.question-map .has-answer{background:#dfebd4;border-color:#b4cc9d}.question-map .current{outline:2px solid var(--green)}.finish-link{background:none;border:0;text-decoration:underline;padding:0;font-size:11px}.result-detail{background:white;border:1px solid var(--line);border-radius:8px;padding:20px;margin:14px 0}.result-detail summary{display:flex;gap:20px;justify-content:space-between;cursor:pointer;font-size:13px;line-height:1.8}.result-detail summary b{font-size:10px;white-space:nowrap}.result-detail>.small{margin-top:18px}.result-detail .answer-feedback{margin-bottom:0}.result-right{color:#3e7843}.result-wrong{color:#9b663d}.weak-item{display:flex;justify-content:space-between;align-items:center;gap:25px;padding:24px;background:white;border:1px solid var(--line);border-radius:9px;margin:17px 0}.weak-item h3{font:23px var(--serif);margin:12px 0}.weak-item p{font-size:12px;max-width:650px}.session-steps{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 25px}.session-steps span{border:1px solid var(--line);border-radius:30px;font-size:10px;padding:7px 15px;color:var(--muted);background:white}.session-steps .active{background:var(--green);color:white;border-color:var(--green)}.submit-review{padding:30px 0}.submit-review h1{font-size:40px}.submit-review p{font-size:13px}.level-optional .prose{color:#74816f}.level-optional{background:#f4f6ef}.optional-disclosure summary{cursor:pointer;font-size:12px;color:var(--green);margin-bottom:15px}
@media(max-width:1100px){.next-actions,.exam-modes{gap:12px}.next-actions>a,.exam-modes>section{padding:19px}.next-actions h3{font-size:21px}.domain-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.weak-item{flex-direction:column;align-items:start}.architecture{padding:10px}}
@media(max-width:700px){.next-actions,.exam-modes,.path-grid{grid-template-columns:1fr}.next-actions>a{padding:19px}.next-actions p{font-size:12px}.path-tile{padding:23px}.path-tile p{min-height:0}.path-tile h3{font-size:26px}.path-tile .module-top{margin-bottom:12px}.diagnostic-callout{flex-direction:column;align-items:start;padding:23px}.question-stem{font-size:24px}.exam-option{padding:16px 13px;font-size:13px;gap:9px}.quiz-actions{justify-content:stretch}.quiz-actions .button{flex:1;white-space:normal}.result-detail{padding:16px}.result-detail .answer-feedback{padding:17px}.unit-practice-box{align-items:stretch;flex-direction:column}.unit-practice-box select{max-width:none;width:100%}.saved-run{flex-direction:column;align-items:start;gap:5px}.domain-grid{gap:11px}.domain-grid .stat{padding:16px}.session-steps{gap:5px}.session-steps span{font-size:9px;padding:6px 10px}.architecture{overflow:auto}.architecture svg{min-width:500px;max-height:none}.architecture figcaption{min-width:0}.result-detail summary{gap:10px}.result-detail summary b{align-self:start}.confidence-label{justify-content:space-between}.confidence-label select{min-width:155px}.question-map{gap:7px}.path-hero .hero-copy{padding:25px}.reference-links{padding:19px}}

/* Core lessons: a readable teaching page, with emphasis reserved for useful distinctions. */
.level-core .prose{font:16px/1.85 var(--sans);color:#2b4037;overflow-wrap:anywhere;max-width:72ch}
.level-core .prose p{font-size:inherit;line-height:inherit;color:inherit;margin:0 0 1.05em}
.level-core .prose h3{font:750 19px/1.4 var(--sans);letter-spacing:-.25px;color:#173e31;margin:2em 0 .8em}
.level-core .prose strong{font-weight:800;color:#163f32}
.level-core .prose ul,.level-core .prose ol{padding-left:1.45em;margin:1em 0 1.4em}
.level-core .prose li{font-size:inherit;line-height:1.8;padding-left:.25em;margin:.65em 0;color:inherit}
.level-core .prose li::marker{color:#38634e;font-weight:750}
.level-core .prose code{font-size:.86em;background:#eef2ed;color:#254d3a;padding:.15em .35em;overflow-wrap:anywhere;white-space:normal}
.level-core .lesson-story{background:#edf3e9;border-left:4px solid #739467;border-radius:0 9px 9px 0;padding:22px 24px;margin:8px 0 26px}
.level-core .lesson-story>p:first-child{font-size:11px;letter-spacing:1.4px;text-transform:uppercase;margin:0 0 10px}
.level-core .lesson-story>p:last-child{margin:0;font-size:17px;line-height:1.8}
.level-core .lesson-check{border:1px solid #bfd0d4;background:#f0f6f7;border-radius:9px;padding:22px 24px;margin:30px 0}
.level-core .lesson-check>p:first-child{font-size:11px;letter-spacing:1.2px;text-transform:uppercase;margin-bottom:10px}
.level-core .lesson-check>p:first-child strong{color:#285460}
.level-core .prose details.lesson-reasoning{margin:18px 0 0;border-top:1px solid #ccdcdf;padding-top:15px}
.level-core .lesson-reasoning summary{color:#214e59;font-size:14px;font-weight:800;cursor:pointer;min-height:36px;padding:5px 0}
.level-core .lesson-reasoning[open] summary{margin-bottom:12px}
.level-core .lesson-reasoning>p:last-child{margin-bottom:0}
.level-core .prose>blockquote{background:#fff9e9;border:1px solid #e5d6ad;border-left:4px solid #ac8740;border-radius:0 8px 8px 0;padding:18px 22px;margin:26px 0;color:#4f4124;font-style:normal}
.level-core .prose>blockquote p{margin:0;color:inherit}
.level-core .prose>blockquote strong{color:#5a431a}
.level-core .lesson-recap{border-top:1px solid #d9e1d6;margin-top:30px;padding-top:17px}
.level-core .lesson-recap summary{font-size:13px;font-weight:750;color:#445c4d;cursor:pointer;min-height:40px;padding:7px 0}
.level-core .lesson-recap[open] summary{margin-bottom:14px}
.level-core .lesson-recap p,.level-core .lesson-recap li{font-size:14px;line-height:1.85}
.level-core .lesson-recap table{font-size:13px}
.level-core .prose details summary:focus-visible{outline:2px solid #295c49;outline-offset:5px;border-radius:2px}
@media(max-width:800px){.level-core .prose{font-size:16px;line-height:1.85}.level-core .prose h3{font-size:18px}.level-core .lesson-story,.level-core .lesson-check{padding:18px}.level-core .lesson-story>p:last-child{font-size:16px}.level-core .prose>blockquote{padding:16px 18px}.reading-section.level-core{padding:22px 20px}}