:root {
  --paper:#fff; --surface:#f6f6f3; --ink:#242521; --muted:#65665f;
  --line:#e2e3dc; --accent:#a74b32; --accent-pale:#f8efe9;
  --anchor-offset:148px; --header-height:72px; color-scheme:light;
  font-synthesis:none;
}
*{box-sizing:border-box}
html{scroll-behavior:auto;scroll-padding-top:var(--anchor-offset)}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
body.menu-open{overflow:hidden}
[hidden]{display:none!important}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button,a,input,select,textarea{touch-action:manipulation}
button,summary{cursor:pointer}
a{color:inherit;text-underline-offset:4px;text-decoration-thickness:1px}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,.table-wrap:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
[tabindex="-1"]:focus{outline:none}
h1,h2,h3,p{margin:0}
h1{font-size:38px;line-height:1.17;font-weight:600;letter-spacing:-.035em;text-wrap:balance}
h2{font-size:25px;line-height:1.35;font-weight:600;letter-spacing:-.025em;text-wrap:balance}
h3{font-size:17px;line-height:1.5;font-weight:600}
p+p{margin-top:16px}
ul,ol{padding-left:21px}
li+li{margin-top:7px}
figure{margin:0}
::selection{background:#f2dccc}
.topbar{height:var(--header-height);display:flex;align-items:center;gap:34px;padding:0 max(32px,calc((100vw - 1104px)/2));border-bottom:1px solid var(--line);position:sticky;top:0;background:#fffffff5;z-index:30}
.top-brand,.brand{font-size:20px;font-weight:650;letter-spacing:-.05em;text-decoration:none;white-space:nowrap}
.global-links{display:flex;align-items:center;gap:25px;height:100%;margin-right:auto}
.global-links a{height:100%;display:flex;align-items:center;font-size:13px;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent;padding-top:2px}
.global-links a[aria-current]{border-color:var(--ink);color:var(--ink)}
.breadcrumb{display:none}
.progress-wrap{display:flex;align-items:center;gap:12px;white-space:nowrap;font-size:12px;color:var(--muted)}
progress{appearance:none;width:64px;height:3px;border:0;background:var(--line)}
progress::-webkit-progress-bar{background:var(--line)}
progress::-webkit-progress-value{background:var(--ink)}
progress::-moz-progress-bar{background:var(--ink)}
.mobile-menu{order:3;min-height:38px;border:1px solid #caccc2;border-radius:5px;background:#fff;padding:5px 13px;font-size:12px}
body:not([data-view="lesson"]) .progress-wrap,body:not([data-view="lesson"]) .mobile-menu{display:none}
.page-shell{min-width:0}
main{max-width:1168px;padding:52px 32px 80px;margin:auto;min-height:calc(100vh - 155px);min-width:0}
.eyebrow,.label{font-size:12px;font-weight:500;line-height:1.6;color:var(--muted)}
.label{display:block;margin-bottom:10px}
.lead{font-size:18px;line-height:1.7;color:var(--muted);margin-top:20px;max-width:64ch}
.annotation{font-size:12px!important;line-height:1.7!important;color:var(--muted)!important}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 21px;border:1px solid var(--ink);border-radius:5px;background:var(--ink);color:#fff;text-decoration:none;font-size:14px;font-weight:500;line-height:1.5;text-align:center}
.button:hover{color:#fff;background:#44463d;border-color:#44463d}
.button.ghost{background:transparent;border-color:#b9bdb0;color:var(--ink)}
.button.ghost:hover{background:var(--surface);border-color:var(--ink)}
.text-button,.copy-btn{background:none;border:0;border-bottom:1px solid #b8bcb0;padding:5px 0;font-size:12px;line-height:1.5;min-height:34px;text-align:left}
.text-button:hover,.copy-btn:hover{color:var(--accent);border-color:var(--accent)}
/* Internal course index: sections, current reading position, working materials. */
.course-index-heading{margin-bottom:28px}
.course-index-heading .eyebrow{margin-bottom:12px}
.course-index-heading h1{font-size:34px;line-height:1.2}
.course-index-heading .lead{font-size:15px;margin-top:13px;max-width:none}
.reading-summary{display:flex;align-items:center;gap:25px;padding:20px 0;border-block:1px solid var(--line);margin-bottom:35px}
.reading-summary>div{min-width:0;margin-right:auto}
.reading-summary .label{font-size:11px;margin:0 0 4px}
.reading-summary strong{font-size:14px;line-height:1.7;font-weight:500;display:block}
.reading-section{display:block;font-size:12px;color:var(--muted);margin-top:3px}
.reading-count{font-size:11px;color:var(--muted);white-space:nowrap}
.reading-summary .button{font-size:12px;min-height:40px;padding:8px 17px;flex-shrink:0}
.course-workbook{margin-top:30px;padding-top:28px;border-top:1px solid var(--line);max-width:740px}
.course-workbook h2{font-size:19px;margin-bottom:10px}
.course-workbook>p{font-size:14px;color:var(--muted)}
.workbook-links{display:flex;flex-wrap:wrap;gap:12px 25px;font-size:12px;margin-top:22px}
.section-head{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:22px}
.section-head>span{font-size:12px;color:var(--muted)}
.course-program{padding-top:0}
.course-program .section-head h2{font-size:22px}
.lesson-list{display:grid;grid-template-columns:1fr 1fr;gap:0 48px;list-style:none;margin:0;padding:0}
.lesson-list li{margin:0;min-width:0}
.lesson-row{display:grid;grid-template-columns:29px minmax(0,1fr)auto;gap:14px;align-items:start;padding:25px 0;border-top:1px solid var(--line);text-decoration:none;height:100%}
.lesson-row:hover{color:var(--ink)}
.lesson-row:hover h3{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.lesson-number{font-size:12px;color:var(--accent);font-variant-numeric:tabular-nums;padding-top:3px}
.lesson-row h3{font-size:17px;line-height:1.5;font-weight:550;letter-spacing:-.015em}
.lesson-row-copy p{font-size:13px;color:var(--muted);line-height:1.8;margin-top:8px}
.lesson-row-meta{display:flex;flex-wrap:wrap;gap:5px 18px;font-size:11px;color:var(--muted);margin-top:14px}
.lesson-open{font-size:11px;color:var(--muted);padding-top:4px}
.home-notes{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding-top:32px;border-top:1px solid var(--line);margin-top:28px}
.home-notes h2{font-size:20px;margin-bottom:15px}
.home-notes p{font-size:14px;color:var(--muted);line-height:1.85}
.home-notes .label{font-size:11px;margin-bottom:10px}
/* Reader: no permanent left rail. Course navigation opens on demand. */
.sidebar{display:none;position:fixed;inset:0 auto 0 0;width:320px;max-width:calc(100vw - 30px);padding:26px 25px 22px;background:#fff;z-index:50;overflow-y:auto;flex-direction:column;border-right:1px solid var(--line)}
.sidebar.open{display:flex}
.sidebar-head{display:flex;justify-content:space-between;align-items:start;gap:15px;margin-bottom:25px}
.brand small{display:block;white-space:normal;font-size:11px;line-height:1.7;font-weight:400;letter-spacing:0;color:var(--muted);margin-top:6px}
.nav-close{background:none;border:0;border-bottom:1px solid var(--line);font-size:12px;min-height:34px;padding:0}
.nav-link{display:flex;align-items:center;gap:12px;min-height:47px;padding:10px;margin:1px -10px;text-decoration:none;font-size:14px;color:var(--muted);border-radius:4px}
.nav-link:hover{background:var(--surface);color:var(--ink)}
.nav-link.active{background:var(--surface);color:var(--ink);font-weight:600}
.nav-num{font-size:11px;width:20px;color:var(--muted);flex-shrink:0}
.nav-check{margin-left:auto;font-size:10px;font-weight:400}
.nav-separator{height:1px;background:var(--line);margin:16px 0}
.side-bottom{margin-top:auto;padding-top:40px;font-size:12px;color:var(--muted)}
.side-bottom a{display:inline-block;margin-top:16px}
.menu-backdrop{position:fixed;inset:0;background:#20221b55;border:0;z-index:45}
.lesson-heading{max-width:890px;margin-bottom:30px}
.back-link{font-size:12px;color:var(--muted);display:inline-block;margin-bottom:23px}
.lesson-heading .eyebrow{font-variant-numeric:tabular-nums;margin-bottom:14px;color:var(--accent)}
.lesson-heading .eyebrow span{margin-left:17px;color:var(--muted);font-size:12px}
.lesson-heading h1{max-width:860px}
.lesson-heading .lead{font-size:16px;line-height:1.8;max-width:75ch;margin-top:17px}
.lesson-phase-nav{display:flex;gap:30px;align-items:stretch;min-height:48px;border-bottom:1px solid var(--line);position:sticky;top:var(--header-height);z-index:25;background:#fff;margin-bottom:32px}
.phase-tab{display:flex;align-items:center;padding:9px 0 12px;border-bottom:2px solid transparent;font-size:13px;color:var(--muted);text-decoration:none}
.phase-tab[aria-current]{border-color:var(--ink);color:var(--ink);font-weight:600}
.phase-tab:hover{color:var(--ink)}
.lesson-layout{display:grid;grid-template-columns:minmax(0,740px)210px;gap:72px;align-items:start;justify-content:space-between}
.lesson-article{grid-column:1;grid-row:1;min-width:0;font-size:16px;line-height:1.85}
.lesson-outline{grid-column:2;grid-row:1;position:sticky;top:156px;max-height:calc(100vh - 180px);overflow-y:auto;font-size:12px;align-self:start;padding-left:18px;border-left:1px solid var(--line)}
.outline-heading{font-size:11px;letter-spacing:.04em;font-weight:500;color:var(--muted);margin-bottom:14px}
.outline-body ol{list-style:none;padding:0;margin:0}
.outline-body li{margin:0 0 8px}
.outline-body a{display:block;color:var(--muted);text-decoration:none;font-size:12px;line-height:1.7;padding:3px 0}
.outline-body a:hover{text-decoration:underline}
.outline-body a[aria-current]{color:var(--ink);font-weight:600}
.outline-toggle{display:none}
.section-link{font-size:11px;margin-top:17px}
.outline-body input{font-size:12px;width:100%;margin-top:10px}
.outcomes{padding:21px 24px;background:var(--surface);border-radius:5px;margin-bottom:38px}
.outcomes h2{font-size:14px;letter-spacing:0}
.outcomes ul{font-size:14px;color:var(--muted);margin:12px 0 0;padding-left:18px}
.outcomes li+li{margin-top:4px}
.content-block{margin:36px 0 44px;scroll-margin-top:var(--anchor-offset)}
.content-block>h2{margin-bottom:19px}
.content-block>p{max-width:69ch;margin:0 0 17px}
.content-block ul,.content-block ol{margin-block:18px}
.content-block li{color:#4d5148}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin:25px 0}
.panel{border:0;border-left:2px solid #d2d6ca;padding:1px 0 1px 18px;min-width:0}
.panel.good{border-left-color:#819b77}
.panel h3{margin-bottom:10px}
.panel p,.panel ul{font-size:14px;color:var(--muted);line-height:1.85}
.panel ul{padding-left:18px}
.case-card{background:var(--surface);padding:21px 24px;margin:25px 0;border-radius:4px;font-size:14px}
.case-card .label{color:var(--accent)}
.prompt{background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:20px 23px;white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px;line-height:1.85;margin:20px 0}
.prompt.dark{background:#f3f4ee;border-color:#dde0d3}
.copy-row{display:flex;justify-content:space-between;align-items:baseline;gap:18px;margin:10px 0 25px}
.copy-row .annotation{font-size:11px!important}
.copy-btn{flex-shrink:0}
.iteration{margin:27px 0}
.iteration p{font-size:15px}
.source-note{font-size:11px;line-height:1.85;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:26px;overflow-wrap:anywhere}
.steps{counter-reset:steps;display:grid;margin:24px 0}
.step{display:grid;grid-template-columns:26px 1fr;gap:14px;border-top:1px solid var(--line);padding:20px 0;counter-increment:steps}
.step:before{content:counter(steps,decimal-leading-zero);color:var(--accent);font-size:11px;padding-top:5px}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}
.table-wrap{max-width:100%;overflow-x:auto;border:1px solid var(--line);border-radius:4px;margin:24px 0;scrollbar-width:thin}
table{border-collapse:collapse;width:100%;min-width:560px;text-align:left;font-size:13px;line-height:1.75}
caption{padding:12px 16px;text-align:left;background:var(--surface);color:var(--muted);font-size:12px}
th,td{padding:15px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:11px;font-weight:600;color:var(--muted);background:var(--surface)}
td{background:#fff;color:#4d5148}
td:first-child{color:var(--ink);font-weight:500}
tbody tr:last-child td{border-bottom:0}
.filter-bar{display:flex;align-items:center;gap:15px;margin:22px 0 15px;font-size:13px;color:var(--muted)}
.field{display:flex;flex-direction:column;gap:9px;font-size:13px;color:var(--muted)}
input,select,textarea{border:1px solid #c9cdc0;border-radius:4px;background:#fff;padding:11px 12px;font-size:14px;min-width:0;min-height:44px;max-width:100%}
textarea{resize:vertical;min-height:110px;line-height:1.8}
input:hover,select:hover,textarea:hover{border-color:#929b85}
.lab{margin:26px 0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:19px}
.lab-output{margin-top:28px}
/* Practice: conditions and editor are separate, with no large tinted wrapper. */
body[data-view="lesson"]:not([data-phase="material"]) .lesson-layout{display:block}
body[data-view="lesson"]:not([data-phase="material"]) .lesson-article{max-width:800px}
body[data-phase="practice"] .lesson-article{max-width:none!important}
.practice{padding:0;margin:0}
.exercise-grid{display:grid;grid-template-columns:minmax(0,1fr)minmax(0,1.24fr);gap:0 64px;align-items:start}
.exercise-brief{grid-column:1;grid-row:1}
.exercise-workspace{grid-column:2;grid-row:1 / span 2}
.criteria{grid-column:1;grid-row:2}
.exercise-brief>.label{font-size:11px;color:var(--accent);margin-bottom:12px}
.exercise-brief>h2{font-size:25px;line-height:1.4;margin-bottom:18px;max-width:29ch}
.exercise-brief>p{font-size:15px;color:var(--muted);line-height:1.85;max-width:49ch}
.criteria{margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.criteria h3{font-size:12px;font-weight:600}
.checklist{list-style:none;padding:0!important;margin:12px 0 0!important}
.checklist li{font-size:13px;line-height:1.75;padding:8px 0;border-bottom:1px solid var(--line);margin:0;color:var(--muted)}
.exercise-workspace{background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:23px}
.workspace-heading{display:flex;justify-content:space-between;gap:15px;align-items:baseline;margin-bottom:20px;font-size:13px;font-weight:500}
.workspace-heading span+span{font-size:11px;font-weight:400;color:var(--muted)}
.exercise-field{margin:0 0 10px;font-size:12px}
.exercise-field textarea{width:100%;min-height:235px;font-size:15px;line-height:1.8;padding:16px;background:#fff}
.exercise-field textarea::placeholder{color:#858b7c}
.draft-tools{display:flex;align-items:baseline;justify-content:space-between;gap:15px}
.draft-tools .annotation{font-size:11px!important}
.draft-tools .text-button{font-size:11px;flex-shrink:0}
details{padding:16px 0;border-block:1px solid var(--line);margin:22px 0}
summary{font-size:13px;font-weight:500;line-height:1.7}
details[open] summary{margin-bottom:18px}
details p,.answer p{font-size:14px;line-height:1.85;color:var(--muted)}
.answer h3{font-size:18px;margin-bottom:12px}
.answer li{font-size:14px}
.model-answer{margin:21px 0 0;padding:16px 0 0;border-bottom:0}
.phase-action{display:flex;justify-content:flex-end;border-top:1px solid var(--line);padding-top:23px;margin-top:34px}
.knowledge{margin-top:0}
.quiz{border:0;border-top:1px solid var(--line);margin:28px 0 36px;padding:23px 0 0;min-width:0}
.quiz legend{float:left;display:block;width:100%;margin:0 0 19px;padding:0;font-size:18px;line-height:1.6;font-weight:500}
.quiz legend .label{font-size:11px;margin-bottom:9px}
.quiz-options{clear:both;display:grid;gap:8px}
.quiz-option{display:flex;align-items:start;gap:13px;background:#fff;border:1px solid var(--line);border-radius:5px;padding:13px 16px;font-size:14px;line-height:1.75;cursor:pointer}
.quiz-option:hover{background:var(--surface);border-color:#bec6b3}
.quiz-option input{appearance:auto;accent-color:var(--ink);width:16px;height:16px;min-height:0;margin:4px 0 0;padding:0;flex-shrink:0}
.quiz-option.correct{border-color:#89a07e;background:#f1f6ed}
.quiz-option.wrong{border-color:#be957f;background:#fbf2ec}
.quiz-feedback{font-size:13px;line-height:1.8;color:#42573a;margin-top:15px}
.quiz-feedback:empty{display:none}
.lesson-end{display:flex;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid var(--line);padding-top:25px;margin-top:40px}
.completion-note{margin-top:15px}
.switches{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}
.switch{background:#fff;border:1px solid #cbd0c2;border-radius:4px;font-size:12px;padding:9px 12px;min-height:42px}
.switch:hover{background:var(--surface)}
.switch.selected{background:var(--ink);color:#fff;border-color:var(--ink)}
.image-demo{display:grid;grid-template-columns:1.15fr 1fr;gap:25px;align-items:center;margin:25px 0}
.image-demo img{width:100%;aspect-ratio:1;object-fit:contain;border-radius:5px}
.image-description h3{font-size:22px;font-weight:500;letter-spacing:-.02em;margin-bottom:12px}
.image-description p{font-size:14px;line-height:1.85}
.image-description .label{margin-top:18px}
.image-description .prompt{padding:12px 15px;margin-top:10px}
.video-figure{margin:25px 0}
.video-figure video{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:#252a24;border-radius:5px}
.video-figure figcaption{font-size:12px;color:var(--muted);line-height:1.8;margin-top:13px}
.task-panel{margin-top:30px}
.task-panel h3{margin-bottom:15px}
.task-panel select{width:100%}
.recommendation{font-size:14px!important;line-height:1.85!important;margin-top:20px;color:var(--muted)}
.budget{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:start;margin:27px 0;border:0;padding:0}
.budget .field{margin-bottom:15px}
.budget input{width:100%}
.budget-output{padding:23px;background:var(--surface);border:1px solid var(--line);border-radius:5px}
.budget-output strong{font-size:38px;line-height:1.3;font-weight:500;letter-spacing:-.03em;display:block;margin-bottom:10px;font-variant-numeric:tabular-nums}
.budget-output small{font-size:12px;color:var(--muted)}
.budget-output p{font-size:14px;margin-top:22px;color:var(--muted)}
.source-list{border-top:1px solid var(--line);margin:24px 0}
.source-item{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:19px 0;border-bottom:1px solid var(--line);text-decoration:none}
.source-item>span:first-child{min-width:0}
.source-item strong{display:block;font-size:15px;line-height:1.7;font-weight:500}
.source-item small{display:block;font-size:12px;line-height:1.7;color:var(--muted);margin-top:5px}
.source-item .source-kind{font-size:10px;margin:0 0 5px}
.external-label{font-size:11px;color:var(--muted);text-decoration:underline;flex-shrink:0}
.source-item:hover strong{text-decoration:underline;color:var(--accent)}
.resource-page{max-width:860px;margin:0 auto}
.resource-page .lesson-heading{margin-bottom:30px}
.resource-search{margin:30px 0}
.resource-search input{font-size:16px}
.resource-search .annotation{margin-top:10px}
.search-results:empty{display:none}
.search-results{border-top:1px solid var(--line);margin-top:20px}
.search-results a{display:block;text-decoration:none;padding:15px 0;border-bottom:1px solid var(--line)}
.search-results small{display:block;font-size:11px;color:var(--muted);margin-bottom:5px}
.search-results span{font-size:15px}
.search-results a:hover span{text-decoration:underline}
.download-section{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:26px 0;border-block:1px solid var(--line);margin:36px 0}
.download-section h2{font-size:20px;margin-bottom:9px}
.download-section p{font-size:13px;color:var(--muted)}
.download-section a{flex-shrink:0}
.about-materials{max-width:72ch}
.about-materials>p{font-size:14px;line-height:1.85}
.about-materials button{margin-top:15px}
footer{display:flex;justify-content:space-between;gap:25px;margin:0 auto;max-width:1104px;padding:24px 0;border-top:1px solid var(--line);font-size:11px;color:var(--muted);line-height:1.8}
.skip{position:fixed;top:-100px;left:20px;background:#fff;padding:12px 18px;z-index:100}
.skip:focus{top:8px}
#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;border-radius:5px;padding:12px 20px;opacity:0;pointer-events:none;max-width:90vw;font-size:13px;z-index:80}
#toast.show{opacity:1}
.noscript{position:fixed;inset:100px 30px auto;padding:25px;background:#fff;border:1px solid var(--line);z-index:50}
@media(min-width:1600px){main{padding-top:64px}.course-overview{padding-bottom:65px}.course-overview-intro h1{font-size:56px}}
@media(max-width:1000px){.topbar{gap:25px;padding-inline:30px}.progress-wrap progress{display:none}.course-overview{gap:40px}.course-overview-intro h1{font-size:43px}.course-preview h2{font-size:17px}.lesson-layout{grid-template-columns:minmax(0,1fr)180px;gap:35px}.exercise-grid{gap:0 35px}.lesson-list{column-gap:30px}footer{margin-inline:32px}.exercise-workspace{padding:20px}}
@media(max-width:900px){:root{--anchor-offset:194px}.lesson-layout{display:flex;flex-direction:column;gap:0}.lesson-article{width:100%;max-width:740px;margin:auto}.lesson-heading{max-width:740px}.lesson-outline{width:100%;padding:0;margin:0 0 30px;background:#fff;border:0;border-block:1px solid var(--line);top:120px;max-height:calc(100vh - 150px);z-index:24}.outline-heading{display:none}.outline-toggle{display:flex;justify-content:space-between;align-items:center;gap:15px;width:100%;min-height:48px;padding:10px 0;border:0;background:none;font-size:12px;text-align:left}.outline-toggle span{font-size:11px;color:var(--muted);max-width:52%;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.outline-body{display:none;padding:5px 0 17px}.lesson-outline.open .outline-body{display:block}.outline-body a{font-size:13px;min-height:38px;display:flex;align-items:center}.course-overview{grid-template-columns:1.1fr 1fr;gap:30px}.course-overview-intro h1{font-size:39px}.preview-images{gap:7px}.preview-images figcaption{font-size:10px}.exercise-grid{grid-template-columns:1fr 1.15fr;gap:0 30px}body:not([data-phase="material"]){--anchor-offset:145px}.global-links{gap:20px}}
@media(max-width:700px){.topbar{gap:20px;padding-inline:22px}.progress-wrap{display:none}.mobile-menu{margin-left:auto}.global-links{gap:18px}.top-brand{font-size:18px}main{padding:32px 22px 60px}.course-overview{grid-template-columns:1fr;gap:34px;padding-bottom:37px}.course-overview-intro h1{font-size:44px;max-width:440px}.course-overview-intro .lead{font-size:16px;max-width:50ch}.course-preview{padding:0;max-width:500px}.course-preview h2{font-size:19px}.preview-images{gap:10px}.preview-images figcaption{font-size:11px}.lesson-list{grid-template-columns:1fr}.section-head{gap:16px}.section-head>span{max-width:125px;text-align:right;line-height:1.6}.section-head h2,.course-program .section-head h2{font-size:23px}.lesson-row{padding:23px 0}.lesson-row h3{font-size:18px}.lesson-row-copy p{font-size:14px}.home-notes{grid-template-columns:1fr;gap:30px;margin-top:24px;padding-top:28px}.home-notes h2{font-size:21px}.lesson-heading h1{font-size:32px}.lesson-heading .lead{font-size:15px}.lesson-heading .back-link{margin-bottom:23px}.exercise-grid{grid-template-columns:1fr;gap:27px}.exercise-brief>h2{font-size:24px;max-width:none}.exercise-brief>p{font-size:15px;max-width:none}.criteria{margin-top:23px}.exercise-workspace{padding:20px}.exercise-field textarea{min-height:220px}.workspace-heading{font-size:13px}.draft-tools .annotation{max-width:210px}.phase-action{margin-top:27px}.lesson-phase-nav{gap:26px}.phase-tab{font-size:12px}.cols{grid-template-columns:1fr;gap:22px}.form-grid{grid-template-columns:1fr}.image-demo{grid-template-columns:1fr;gap:20px}.image-demo img{max-width:440px;margin:auto}.image-description h3{font-size:23px}.image-description p{font-size:15px}.budget{grid-template-columns:1fr;gap:18px}.content-block>h2{font-size:23px}.lesson-end{flex-direction:column-reverse;align-items:stretch;gap:12px}.lesson-end .button{width:100%}.copy-row{gap:12px}.quiz legend{font-size:18px}.quiz-option{font-size:15px;padding:13px}.filter-bar{flex-wrap:wrap;gap:10px}.download-section{flex-direction:column;align-items:start;gap:20px}footer{margin-inline:22px;flex-direction:column;gap:7px}.content-block{margin:30px 0 38px}.lesson-article{font-size:16px}.course-facts{font-size:11px;gap:8px 15px}.source-item{gap:16px}}
@media(max-width:450px){:root{--header-height:64px;--anchor-offset:184px}.topbar{gap:14px;padding-inline:18px}.top-brand{font-size:17px}.global-links{gap:16px}.global-links a{font-size:12px}body[data-view="lesson"] .global-links{display:none}body[data-view="lesson"] .mobile-menu{font-size:12px}main{padding:29px 18px 50px}.course-overview-intro h1{font-size:40px;max-width:350px}.course-overview-intro .eyebrow{font-size:11px}.course-preview h2{font-size:18px}.lesson-heading h1{font-size:30px}.lesson-heading .eyebrow{font-size:11px}.lesson-heading .eyebrow span{font-size:11px;margin-left:13px}.lesson-phase-nav{gap:24px;top:64px;min-height:46px}.phase-tab{padding-bottom:12px}.lesson-outline{top:110px}.phase-action .button{width:100%}.lesson-open{display:none}.lesson-row{grid-template-columns:26px minmax(0,1fr);gap:12px}.outcomes{padding:18px}.prompt{padding:17px;font-size:14px}.exercise-workspace{padding:17px}.workspace-heading{font-size:12px}.workspace-heading span+span{font-size:10px}.exercise-field textarea{font-size:16px;padding:13px}.source-item strong{font-size:14px}.external-label{font-size:10px}.source-item .source-kind{font-size:10px}.source-item small{font-size:11px}.exercise-brief>h2{font-size:23px}.intro-actions{gap:16px}.button{padding-inline:18px}body:not([data-phase="material"]){--anchor-offset:134px}footer{margin-inline:18px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{.sidebar,.topbar,.lesson-outline,.lesson-phase-nav,.copy-row,.phase-action,.lesson-end,.skip,.draft-tools,#toast,footer{display:none!important}main{padding:0}.lesson-layout,.exercise-grid{display:block}.lesson-article{font-size:11pt;max-width:none}.lesson-article [data-phase-group]{display:block!important}.table-wrap{overflow:visible}table{min-width:0}.exercise-workspace{margin-top:20px}a{color:inherit}}
/* Put the writing task before the checklist on a small screen. */
@media(max-width:700px){
 body[data-phase="practice"] .lesson-heading{margin-bottom:22px}
 body[data-phase="practice"] .lesson-heading h1{font-size:26px}
 body[data-phase="practice"] .lesson-heading .lead{display:none}
 .exercise-grid{display:flex;flex-direction:column;gap:0}
 .exercise-brief>.label{margin-bottom:10px}
 .exercise-brief>h2{margin-bottom:16px}
 .exercise-brief>p{margin-bottom:24px}
 .exercise-workspace{width:100%}
 .criteria{width:100%;margin-top:25px}
}

@media(max-width:700px){.course-index-heading h1{font-size:30px}.reading-summary{flex-wrap:wrap;gap:15px}.reading-summary>div{flex-basis:100%}.reading-summary .reading-count{margin-right:auto}.course-index-heading .lead{font-size:14px}}