.reader{scroll-margin-top:20px}.reader-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin:0 0 20px}.reader-heading h2{font-size:23px;margin:7px 0 0}.reader-heading .eyebrow{color:#64816d}.reading-count{font-size:20px;font-family:Georgia,serif;color:var(--green);white-space:nowrap}.reading-count small{display:block;font:10px "Malgun Gothic",sans-serif;text-align:right;margin-top:2px}.reader-layout{display:grid;grid-template-columns:154px minmax(0,1fr);gap:22px;align-items:start}.reader-nav{position:sticky;top:20px;display:grid;gap:7px}.reader-nav button{background:transparent;text-align:left;border:1px solid transparent;font-size:12px;padding:12px 9px;display:flex;gap:12px;align-items:center}.reader-nav button span{font:12px Consolas,monospace;color:#6b7f70}.reader-nav button.selected{background:#e5eee0;border-color:#c9d8c3;font-weight:700}.reader-nav p{font-size:11px;line-height:1.9;color:var(--muted);padding:20px 12px}.reader-page{background:#fff;border:1px solid var(--line);border-radius:14px;min-width:0;overflow:hidden;scroll-margin-top:20px}.reader-body{padding:30px 32px;font-size:14px;line-height:1.9}.reader-body>h2{font-size:25px;letter-spacing:-.8px;margin:10px 0 22px}.lesson-kicker{color:#6d866e;font-size:10px;font-weight:700;letter-spacing:1.4px}.context-photo{margin:0 0 25px}.context-photo img{display:block;width:100%;height:235px;object-fit:cover;object-position:center 52%;border-radius:9px}.context-photo figcaption{font-size:10px;color:var(--muted);margin-top:7px}.incident-card{padding:22px;border:1px solid #d9dfd3;border-radius:10px;background:#f8faf4}.case-label{color:#476c54;font-size:10px;letter-spacing:.7px;font-weight:700}.incident-card h3,.briefing h3{font-size:19px;line-height:1.6;margin:8px 0 6px}.case-date{font-size:11px;color:var(--muted);margin-bottom:15px}.case-facts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0}.case-facts>div{border-left:2px solid #a9c599;padding:6px 12px}.case-facts small{font-size:11px;color:var(--muted);display:block}.case-facts strong{font-size:15px;display:block;margin-top:5px}.inline-sources{font-size:11px;line-height:1.8;overflow-wrap:anywhere;margin:15px 0 0}.why-card{padding:22px 0 0}.why-card h3{font-size:16px;margin-bottom:8px}.evidence-boundary{font-size:12px;border-left:3px solid #c6b28c;background:#faf6ee;padding:13px 17px;color:#685a42;margin:15px 0 25px}.briefing{background:#ecf2e6;border-radius:10px;padding:22px;margin-top:20px}.briefing p:last-child{margin-bottom:0}.briefing p strong{font-size:12px}.reader-bottom{padding:20px 28px;border-top:1px solid var(--line);display:flex;align-items:center;gap:15px;justify-content:space-between;background:#fcfcf8}.reader-bottom>span{font-size:12px;color:var(--muted)}.reader-bottom button{font-size:12px}.reader-body .prose{max-width:none;font-size:15px;line-height:2.05}.reader-body .prose h3{font-size:24px;line-height:1.6;margin:10px 0 25px}.reader-body .prose p{margin-bottom:24px}.term-drawer{padding:16px 20px;border:1px solid var(--line);border-radius:8px;background:#fafbf7}.term-drawer dl,.account-card dl{display:grid;grid-template-columns:110px 1fr;gap:10px;font-size:13px}.term-drawer dt,.account-card dt{font-weight:700}.term-drawer dd,.account-card dd{margin:0}.learning-pause{border-top:1px solid var(--line);padding-top:22px;margin-top:25px;font-size:13px}.learning-pause strong{color:var(--green)}.learning-pause p{margin:7px 0 0}.worked-sample{font:12px/1.9 Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;background:#183530;color:#d6e8dd;border-radius:9px;padding:20px}.worked-steps{counter-reset:steps;margin-top:24px}.worked-steps details{border:1px solid var(--line);border-radius:9px;margin:12px 0;overflow:hidden}.worked-steps summary{padding:17px;font-size:14px;list-style:none;display:flex;align-items:center;gap:12px}.worked-steps summary:after{content:'＋';margin-left:auto;font-size:16px}.worked-steps details[open] summary:after{content:'−'}.worked-steps summary span{display:grid;place-items:center;width:27px;height:27px;background:#e4eddd;border-radius:50%;font-size:12px;flex-shrink:0}.worked-steps details>div{padding:0 20px 18px 56px}.teacher-answer{font-weight:600;color:var(--ink)}.teacher-reason{font-size:13px;color:var(--muted)}.concept-check{min-width:0;padding:17px;border:1px solid var(--line);border-radius:10px;margin:28px 0}.concept-check legend{font-weight:700;font-size:14px;padding:0 7px}.concept-feedback{font-size:13px;color:#47644b;padding:12px 14px;background:#edf4e9;border-radius:7px;margin-top:15px}.concept-feedback p{margin:8px 0 0}.visual-lab{margin-top:25px}.visual-control,.graph-controls label{font-size:12px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-weight:600}.visual-control select,.graph-controls select{font:inherit;background:white;border:1px solid #a4b9a7;border-radius:7px;padding:8px;color:var(--ink);max-width:100%}.request-flow{display:flex;align-items:center;gap:10px;margin:28px 0}.request-flow>div{flex:1;min-width:0;border:1px solid #d3dfcc;border-radius:10px;background:#f3f6ed;padding:17px 12px}.request-flow>div>span{display:block;font:12px Consolas,monospace;color:#6e8d71}.request-flow strong{display:block;font-size:14px;margin:7px 0}.request-flow p{font-size:11px;margin:0}.request-flow>b{color:#7c9b79;font-weight:400}.result-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}.result-pair>div{border-radius:8px;padding:18px;background:#f0eee3}.result-pair small{font-size:11px;display:block}.result-pair strong{display:block;font:26px Consolas,monospace;margin:8px 0}.result-pair p{font-size:12px;margin:0}.visual-takeaway{font-size:13px;background:#e5efdf;border-left:3px solid #729465;padding:16px 18px;margin:25px 0 18px}.graph-controls{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:15px}.graph-controls label{display:block}.graph-controls select,.graph-controls input{display:block;margin-top:7px}.graph-controls input[type=range]{accent-color:var(--green);width:180px}.chart-scroll{overflow-x:auto;margin-top:22px}.count-chart,.timeline-svg{display:block;min-width:500px;width:100%;height:auto}.grid-line{stroke:#e0e7dc;stroke-width:1}.axis-text{font:11px "Malgun Gothic",sans-serif;fill:#5b7263}.bar-label{font:13px "Malgun Gothic",sans-serif;fill:#243e30;font-weight:700}.bar-value{font:12px "Malgun Gothic",sans-serif;fill:#304435;font-weight:700}.bar-alert{fill:#b48742}.bar-normal{fill:#7d9a81}.threshold-line{stroke:#a05529;stroke-width:2;stroke-dasharray:4 4}.table-scroll{overflow-x:auto}.table-scroll table{width:100%;border-collapse:collapse;font-size:12px;line-height:1.6;min-width:340px}.table-scroll th,.table-scroll td{padding:11px 10px;text-align:left;border-bottom:1px solid var(--line)}.table-scroll th{background:#f1f5ec;font-weight:700}.table-scroll caption{text-align:left;font-size:11px;color:var(--muted);padding:12px 0}.account-flow{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.account-flow li{padding:15px 10px;background:#eaf1e4;border-radius:8px}.account-flow span,.account-flow small{display:block;font-size:10px;color:#617d62}.account-flow strong{display:block;font-size:12px;margin:8px 0}.simulation-controls{display:flex;flex-wrap:wrap;gap:10px;margin:25px 0 15px}.simulation-controls button,.handoff-flow button{font-size:12px}.simulation-controls button[aria-pressed=true],.handoff-flow button[aria-pressed=true]{background:#dcebd5;border-color:#7e9c71;font-weight:700}.account-card,.role-card{border:1px solid var(--line);border-radius:9px;padding:22px;background:#fafbf7}.account-card h3{font-size:18px;margin:10px 0}.account-card p{font-size:13px;margin-bottom:0}.timeline-dot{fill:#5b8968}.timeline-delayed{fill:#b77d36}.delayed-row{background:#fbf1dd}.handoff-flow{display:flex;align-items:center;gap:10px;margin:20px 0}.handoff-flow button{flex:1;padding:17px 8px;min-width:0}.handoff-flow small,.handoff-flow strong{display:block}.handoff-flow small{font-size:10px;color:var(--muted)}.handoff-flow strong{font-size:17px;margin-top:8px}.role-card p{font-size:13px}.reader-page:focus{outline:none}.reader-page:focus-visible{outline:2px solid #9caf83;outline-offset:3px}
@media(max-width:1150px){.reader-layout{grid-template-columns:1fr}.reader-nav{position:static;display:flex;overflow-x:auto;gap:4px;padding-bottom:5px}.reader-nav button{white-space:nowrap;padding:9px 10px;font-size:11px}.reader-nav p{display:none}.reader-nav button span{font-size:10px}.reader-body{padding:25px}.reader-heading h2{font-size:21px}}
@media(max-width:740px){.reader-heading h2{font-size:19px}.reader-heading .eyebrow{font-size:9px}.reader-body{padding:22px 17px}.reader-body>h2{font-size:23px}.context-photo img{height:180px}.incident-card,.briefing{padding:17px}.incident-card h3{font-size:18px}.case-facts{grid-template-columns:1fr}.reader-bottom{padding:15px 12px;gap:7px}.reader-bottom button{padding:9px;font-size:11px}.reader-bottom>span{font-size:10px}.reader-body .prose{font-size:14px}.reader-body .prose h3{font-size:21px}.request-flow{flex-direction:column;align-items:stretch}.request-flow>b{transform:rotate(90deg);align-self:center}.request-flow>div{padding:13px}.request-flow>div>span{float:right}.result-pair{gap:10px}.result-pair>div{padding:14px}.result-pair strong{font-size:21px}.account-flow{grid-template-columns:1fr 1fr}.term-drawer dl,.account-card dl{grid-template-columns:1fr;gap:5px}.term-drawer dd,.account-card dd{margin-bottom:10px}.worked-steps details>div{padding:0 17px 15px}.concept-check{padding:13px 9px}.handoff-flow{gap:5px}.handoff-flow small{font-size:9px}.handoff-flow strong{font-size:14px}.context-photo figcaption{font-size:9px}.reading-count{font-size:16px}}
@media print{.reader-nav,.reader-bottom{display:none}.reader-layout{display:block}.reader-page{border:0}.context-photo{max-width:450px}.reader-body{padding:0}.reader{break-before:auto}}