.course-heading{max-width:72ch;margin:18px 0 24px}.course-heading h2{margin:10px 0}.course-heading p{font-size:1.1rem}.course-tool-nav,.course-actions,.course-filters,.comparison-pickers{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:18px 0}.course-tool-nav button{min-height:48px}.course-tool-nav [aria-pressed=true],.evidence-task [aria-pressed=true],.story-evidence-choices [aria-pressed=true],.story-conclusion-choices [aria-pressed=true]{background:#7046ae;color:#fff;border-color:#7046ae}.course-filters label,.comparison-pickers label{display:grid;gap:6px;min-width:0;flex:1}.course-filters select,.comparison-pickers select{width:100%}.course-actions{justify-content:space-between;padding:18px;background:#eee7f8;border-radius:16px}.course-actions p{margin:0}.course-unit{margin:32px 0}.course-card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:18px 0}.course-card{display:flex;flex-direction:column;align-items:start;min-width:0;padding:20px;background:var(--subject-paper,#fffaf2);border:1px solid var(--subject-line,#d8d0df);border-radius:18px;box-shadow:0 4px 12px #31264e08}.course-card h3{margin:8px 0 12px;font-size:1.15rem}.course-card>button:first-of-type{margin-top:auto}.course-card>button{width:100%;margin-block:5px;min-height:48px}.course-card-icon{font-size:1.4rem;background:#eee7f8;color:#7046ae;padding:6px 13px;border-radius:12px}.course-badge{color:#51416d;font-weight:700;background:#eee7f8;border-radius:9px;padding:7px 10px}.course-reading{max-width:75ch;line-height:1.85;font-size:1.12rem}.lesson-workspace{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:22px;align-items:start;margin:24px 0}.evidence-task,.course-source-notes{min-width:0;padding:20px;background:var(--subject-paper,#fffaf2);border:1px solid var(--subject-line,#d8d0df);border-radius:16px}.course-source-notes{position:sticky;top:18px;overflow-wrap:anywhere}.course-source-notes summary{font-weight:700;cursor:pointer;min-height:48px}.course-source-notes p{margin-top:12px}.evidence-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:20px 0}.evidence-card{padding:14px;border:1px solid #d8d0df;border-radius:12px;background:#fff;min-width:0;overflow-wrap:anywhere}.evidence-card h3{font-size:1.05rem;margin:12px 0}.evidence-card p{line-height:1.65}.evidence-card button{min-height:48px;width:100%;white-space:normal}.evidence-art{background:#f1edf8;border-radius:9px;padding:6px;text-align:center;overflow:hidden}.evidence-art svg{display:block;width:100%;height:auto}.evidence-art-label{font-size:.72rem;font-weight:700;display:block;margin:5px}.sequence-list{padding-left:24px}.sequence-list li{padding:15px;background:#f4f0f8;border:1px solid #d8d0df;border-radius:12px;margin:12px 0;min-width:0}.sequence-list li>span{display:block;font-weight:700}.sequence-list li>small{display:block;line-height:1.6;margin:8px 0}.sequence-list li>div{display:flex;gap:10px}.sequence-list button{min-height:48px;flex:1}.conclusion-options,.classification-list,.match-claims{display:grid;gap:12px;margin:20px 0}.conclusion-options button,.match-claims button,.story-conclusion-choices button{min-height:52px;width:100%;text-align:left;white-space:normal}.match-claims article{padding:12px;border:1px solid #d8d0df;border-radius:10px}.match-claims article p{margin:8px 0 0}.classification-list fieldset{min-width:0;border:1px solid #d8d0df;border-radius:12px;padding:14px}.classification-list legend{font-weight:700;max-width:100%;padding:6px}.classification-list button{margin:5px;min-height:48px;white-space:normal}.activity-feedback{padding:14px;border-radius:10px;margin:14px 0;line-height:1.7}.activity-feedback:empty{display:none}.activity-feedback[data-result=supported]{background:#e7f1e8}.activity-feedback[data-result=retry]{background:#fff0d7}.course-lesson>.course-badge{display:inline-block}.course-lesson>button{min-height:48px}.related-stories{padding:20px;margin:20px 0;background:#eee7f8;border-radius:14px}.related-stories button{display:block;margin:10px 0;text-align:left;min-height:48px}.comparison-panels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.comparison-panel{min-width:0;padding:20px;border:1px solid #d8d0df;border-radius:16px;background:var(--subject-paper,#fffaf2)}.comparison-panel .evidence-grid{grid-template-columns:1fr}.comparison-panel .evidence-art{max-width:240px}.comparison-panel .course-source-notes{position:static}.timeline-results{margin:18px 0}.shared-timeline{padding-left:25px}.shared-timeline li{padding:10px;border-left:3px solid #b79bda;list-style:circle}.shared-timeline li>span{display:block;margin:5px 0}#investigationsView>label{display:grid;gap:10px;font-weight:700}#investigationsView>label>input{width:100%;min-height:52px}#investigationsView>output{display:block;font-size:1.6rem;font-weight:700;margin:12px 0}.story-evidence-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0}.story-evidence-choices>h3{grid-column:1/-1}.story-evidence-choices article{padding:16px;border:1px solid #d8d0df;border-radius:12px}.story-evidence-choices button{min-height:48px;width:100%}.story-evidence-choices p{margin-top:12px}.story-conclusion-choices{display:grid;gap:10px;margin:20px 0}.map-reference-choice{display:flex;align-items:center;gap:8px;min-height:48px}.legacy-written-clue{padding:16px;margin:20px 0;background:#f1edf8;border-radius:12px}.legacy-written-clue summary{min-height:48px;cursor:pointer;font-weight:700}.history-map svg text{paint-order:stroke;stroke:#fffaf2;stroke-width:3px;stroke-linejoin:round}
@media(max-width:1100px){.course-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-workspace{grid-template-columns:minmax(0,1fr)}.course-source-notes{position:static}}
@media(max-width:600px){.course-card-grid,.comparison-panels,.evidence-grid,.story-evidence-choices{grid-template-columns:minmax(0,1fr)}.course-tool-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.course-tool-nav button{padding:8px 5px}.course-filters{display:grid;grid-template-columns:1fr 1fr}.course-filters>button{grid-column:1/-1}.comparison-pickers{display:grid}.course-card,.evidence-task,.comparison-panel{padding:16px}.evidence-art{max-width:270px;margin:auto}.classification-list button{width:100%;margin:5px 0}.course-actions{display:grid}.course-source-notes{padding:16px}}
@media(prefers-reduced-motion:reduce){.course-lesson *{scroll-behavior:auto!important;transition:none!important}}
.reading-level-picker{display:grid;gap:8px;max-width:360px;margin:18px 0;font-weight:700}.reading-level-picker select{width:100%;max-width:100%;min-height:48px;font:inherit}
.course-narrative{max-width:75ch;margin:24px 0}.course-narrative h3{line-height:1.35}.course-narrative p{margin:14px 0}.causal-links{display:grid;gap:14px;margin:22px 0}.causal-link{min-width:0}.causal-link button{width:100%;min-height:56px;white-space:normal;text-align:left;line-height:1.5}.causal-link button[aria-pressed=true]{background:#7046ae;color:#fff}.history-reflection{max-width:75ch;padding:18px;border:1px solid #d8d0df;border-radius:14px;margin:24px 0;background:#fffaf2}.history-reflection summary{font-weight:700;min-height:48px;cursor:pointer}.history-reflection label{display:grid;gap:12px;line-height:1.6}.history-reflection textarea{box-sizing:border-box;width:100%;max-width:100%;min-height:120px;font:inherit;resize:vertical;padding:12px;border:1px solid #8c7d9b;border-radius:8px}.history-reflection button{min-height:48px;margin-top:14px}.history-map-stages{margin:24px 0;padding:18px;background:#f1edf8;border-radius:14px;min-width:0}.history-map-stages label{display:grid;gap:10px;line-height:1.5}.history-map-stages select{width:100%;min-height:48px;max-width:100%;font:inherit}.history-map-stages button{min-height:48px;white-space:normal}.history-map-stages .history-map{margin-inline:0}.map-stage-summary{line-height:1.7}.preserved-answer{white-space:pre-line;overflow-wrap:anywhere}.history-timeline li{margin:12px 0;line-height:1.6}.legacy-written-clue section{border-top:1px solid #d8d0df;margin-top:12px}.legacy-written-clue summary{white-space:normal}