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button{font-size:10px;padding:6px}.badge{font-size:10px}.intro{padding-top:24px;display:block}h1{font-size:28px}.intro p{font-size:12px}.progress{margin-top:20px}.progress strong{font-size:23px}.notice{margin:0 4% 20px}main{display:block}aside{margin-bottom:18px}nav{max-height:180px;overflow:auto}.columns{display:block}article{padding:20px}#code{min-height:270px}}

[hidden]{display:none!important}#lesson{padding:12px 15px;background:#f0f7f4;border:1px solid #d6e9df;border-radius:8px;margin-bottom:20px}#lesson h3{margin-top:0}#lesson small{display:block;font-size:11px;color:#527264;margin-top:8px}#lesson pre{background:white}.example:has(>div:only-child){grid-template-columns:1fr}

aside{position:sticky;top:16px;max-height:calc(100vh - 32px);display:flex;flex-direction:column}.nav-search{padding:10px;border-bottom:1px solid #e4ebef}.nav-search input{width:100%;padding:9px;border:1px solid #cbd8e0;border-radius:6px;font:inherit;font-size:12px}.nav-search button{font-size:11px;padding:4px 8px;margin-top:7px}#list{overflow-y:auto;overscroll-behavior:contain;min-height:0;scrollbar-gutter:stable}.problem-group{margin:0;border-bottom:1px solid #e6ecef}.problem-group summary{list-style:none;display:flex;align-items:center;gap:6px;padding:13px 10px;font-size:11px;font-weight:700;color:#526d7e;background:#f8fafb}.problem-group summary::-webkit-details-marker{display:none}.problem-group summary:before{content:'▸';color:#337d69}.problem-group[open]>summary:before{content:'▾'}.problem-group summary span{flex:1;min-width:0}.problem-group summary small{font-size:10px;white-space:nowrap;color:#718993}.nav-empty{padding:12px;font-size:12px;color:#71818d}@media(max-width:650px){aside{position:static;max-height:320px}#list{max-height:220px}}

#courseFilter{width:100%;padding:8px;margin-bottom:8px;border:1px solid #cbd8e0;border-radius:6px;background:white;color:#24445c;font:inherit;font-size:12px}

.support{margin-top:25px;padding:12px;border:1px solid #cfe2da;background:#f4faf6;border-radius:8px}.support p{font-size:12px}.support button{font-size:11px;margin:3px;padding:7px}#basicSteps{padding-left:20px;font-size:12px}#variableRoles p{font-size:12px;margin:4px 0}#solutionStyle{padding:9px;border:1px solid #bed2db;border-radius:6px}