/* Collapsible three-question knowledge checks for every chapter section. */
.section-knowledge-check{margin:20px 0 28px;border:1px solid var(--line,#d8cfbe);border-left:3px solid var(--accent,#b8402e);border-radius:9px;background:rgba(var(--accent-rgb,184,64,46),.045);overflow:hidden;}.section-knowledge-check>summary{cursor:pointer;list-style:none;padding:12px 14px;color:var(--ink,#211e1a);font:700 12px/1.35 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.02em;}.section-knowledge-check>summary::-webkit-details-marker{display:none;}.section-knowledge-check>summary::before{content:"+";display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;margin-right:8px;border:1px solid var(--accent,#b8402e);border-radius:50%;color:var(--accent,#b8402e);}.section-knowledge-check[open]>summary::before{content:"–";}.section-knowledge-check__body{padding:2px 14px 15px;border-top:1px solid var(--line,#d8cfbe);}.section-knowledge-check__intro{margin:13px 0;color:var(--ink-soft,#5b5347);font-size:14px;line-height:1.5;}.section-check-question{padding:13px 0;border-top:1px solid rgba(140,125,100,.22);}.section-check-question:first-of-type{border-top:0;}.section-check-question__title{margin:0;color:var(--ink,#211e1a);font-weight:700;line-height:1.5;}.section-check-question__cue{display:none;margin:9px 0 0;padding:9px 10px;border-radius:6px;background:rgba(0,0,0,.04);color:var(--ink-soft,#5b5347);font-size:13px;line-height:1.5;}.section-check-question__cue.is-visible{display:block;}.section-check-question__actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;}.section-check-button{appearance:none;border:1px solid var(--line-strong,#c7bca6);border-radius:6px;background:transparent;color:var(--ink,#211e1a);padding:6px 9px;cursor:pointer;font:700 11px/1.2 "JetBrains Mono",ui-monospace,monospace;}.section-check-button:hover{border-color:var(--accent,#b8402e);color:var(--accent,#b8402e);background:rgba(var(--accent-rgb,184,64,46),.08);}.section-check-button.is-marked{border-color:#3f6f4e;background:rgba(63,111,78,.1);color:#2d5e3d;}.section-check-button:focus-visible,.section-knowledge-check>summary:focus-visible{outline:3px solid rgba(var(--accent-rgb,184,64,46),.3);outline-offset:2px;}
@media(max-width:650px){.section-knowledge-check>summary{padding:11px 12px;}.section-knowledge-check__body{padding-left:12px;padding-right:12px;}}