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0;cursor:pointer;color:var(--forest)}.full-reference>summary::-webkit-details-marker{display:none}.full-reference>summary>span:first-child{font-size:15px;font-weight:500}.full-reference>summary>small{grid-column:1;font:10px var(--mono);color:var(--muted)}.details-symbol{grid-column:2;grid-row:1/3;align-self:center;justify-self:end;font-size:25px}.full-reference[open] .details-symbol{font-size:0}.full-reference[open] .details-symbol:after{content:'−';font-size:25px}.reference-content{border-top:1px solid var(--line);padding-bottom:25px;min-width:0}.reference-content .doc-section{margin-top:30px;padding-top:25px;border-top:1px solid var(--line)}.reference-content .doc-section:first-child{border:0;margin-top:0}.reference-content .section-header{display:flex;gap:10px;align-items:baseline}.reference-content .section-num-tag{font:10px var(--mono);color:var(--muted)}.reference-content h2{font:400 26px var(--serif);color:var(--forest);margin:0 0 18px}.reference-content p,.reference-content 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@media(max-width:420px){.outline-disclosure ol{grid-template-columns:1fr}.lesson-actions>div{flex-wrap:wrap}.lesson-actions .solid-button{flex:1}.complete-lesson{padding:13px 12px}.course-overview h1{font-size:43px}.score-heading{font-size:32px}.result-actions .solid-button{width:100%}.question-nav .plain-button,.question-nav .solid-button{padding:12px 15px;font-size:12px}.quiz-map button{width:30px;height:30px}.course-main{padding-left:20px;padding-right:20px}.masthead nav{gap:16px}}
.plain-button:disabled{opacity:.45;cursor:default}.question-form legend{scroll-margin-top:24px}
.field-nav{display:flex;justify-content:space-between;padding:14px 12px;font-size:12px;color:var(--forest);border-top:1px solid var(--line);margin-top:15px}.field-nav[aria-current=step]{background:var(--wash);font-weight:500}.field-reference>summary>small{font-family:var(--sans);font-size:12px;line-height:1.7;max-width:600px}