.experiment-types{display:flex;gap:7px;flex-wrap:wrap;margin:0 0 18px;padding:0 0 18px;border-bottom:1px solid #d8dfd0}.experiment-types button{background:#f9fbf4;border:1px solid #c4cdb7;color:#66745c;border-radius:20px;padding:7px 13px;font-size:12px}.experiment-types button.selected{background:#e6efd6;color:#314d20;border-color:#709242;font-weight:700}.filter-row{flex-wrap:wrap}.chapter-card{padding:0;overflow:hidden;scroll-margin-top:20px}.chapter-card.expanded{grid-column:1/-1}.chapter-summary{padding:22px;min-width:0;flex:1}.chapter-overview{display:flex;flex-direction:column}.chapter-preview{height:135px;background:#e8eee5;order:-1;border-bottom:1px solid #dae2d4}.chapter-preview img{width:100%;height:100%;object-fit:cover;object-position:center}.chapter-card h3{margin-top:13px}.chapter-card .card-topics{min-height:0;margin-bottom:12px}.chapter-card.expanded .chapter-overview{background:#f0f5e7}.chapter-card.expanded .chapter-summary{padding:22px 26px}.chapter-card.expanded .card-top{max-width:520px}.chapter-card.expanded h3{font-size:25px}.chapter-card.expanded .card-footer{padding-top:12px}.chapter-experiments{padding:0 24px 25px;background:#fbfcf7;border-top:1px solid #cbd6bd}.chapter-experiments-title{display:flex;justify-content:space-between;gap:10px;padding:17px 0;font-size:12px;color:#728067}.chapter-experiments-title span:last-child{font-size:11px}.experiment-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.experiment-card{border:1px solid #d0d9c6;border-radius:8px;text-decoration:none;background:white;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .15s,transform .15s}.experiment-card:hover{transform:translateY(-3px);box-shadow:0 7px 15px #304e1914;border-color:#7b9a57}.experiment-picture{position:relative;aspect-ratio:2.2;background:#eef3e9;border-bottom:1px solid #e6ebdf}.experiment-picture img{display:block;width:100%;height:100%;object-fit:cover}.experiment-kind{position:absolute;left:10px;top:10px;font-size:9px;padding:3px 7px;background:#f7ffece8;color:#547030;border:1px solid #d6e5c4;border-radius:4px}.experiment-kind.hard{background:#f7eaf7ed;border-color:#ddc5e0;color:#7b5c88}.experiment-copy{display:flex;flex-direction:column;flex:1;padding:14px 15px 12px}.experiment-copy h4{font-size:14px;margin:0;line-height:1.65;color:#2d3f29}.experiment-copy p{font-size:11px;line-height:1.8;color:#87917d;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:9px 0 13px}.experiment-meta{margin-top:auto;border-top:1px solid #eff1e9;padding-top:10px;display:flex;justify-content:space-between;align-items:center;gap:5px;font-size:9px;color:#7f8a73}.experiment-meta b{color:#4c6c31;font-size:10px;white-space:nowrap}.load-experiments{display:flex;margin:22px auto 0}.map-intro .button{margin-top:7px}.map-visual img{display:block;width:100%;height:auto;aspect-ratio:800/304;object-fit:contain;border:1.5px solid #8eaa8c;border-radius:12px;box-shadow:7px 7px 0 #d6e8be;transform:rotate(-3deg)}.map-visual .visual-note{z-index:2;background:#fafcf4}.book-sidebar{align-self:start;position:sticky;top:20px}
@media(min-width:1500px){.experiment-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1050px){.experiment-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.chapter-summary{padding:18px}.chapter-experiments{padding:0 17px 20px}}
@media(max-width:760px){.book-sidebar{position:static}.experiment-types{gap:6px}.experiment-types button{font-size:11px;padding:6px 10px}.chapter-overview{flex-direction:row}.chapter-preview{width:116px;height:auto;min-height:170px;order:0;flex-shrink:0;border-bottom:0;border-left:1px solid #dae2d4}.chapter-preview img{object-fit:cover;object-position:42% center}.chapter-summary{padding:16px}.chapter-card h3{font-size:18px}.chapter-card .card-top{flex-wrap:wrap}.chapter-card .card-book{font-size:10px}.chapter-card .state-tag{font-size:9px}.chapter-card .card-topics{font-size:10px}.chapter-card.expanded .chapter-summary{padding:19px}.chapter-card.expanded h3{font-size:23px}.chapter-experiments{padding:0 12px 18px}.experiment-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.experiment-copy{padding:10px}.experiment-copy h4{font-size:12px}.experiment-copy p{font-size:10px;-webkit-line-clamp:3}.experiment-meta{font-size:8px;flex-wrap:wrap}.experiment-kind{left:6px;top:6px;font-size:8px;padding:2px 4px}.experiment-picture{aspect-ratio:1.6}.experiment-picture img{object-position:center}.chapter-experiments-title span:last-child{display:none}.card-footer{flex-wrap:wrap}.card-footer .button{font-size:10px}.card-footer .plain-button{font-size:10px}}