.catalog-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}.catalog-heading>.secondary{white-space:nowrap;margin-top:20px}.catalog-stats{display:flex;gap:26px;flex-wrap:wrap;margin:15px 0 26px;font-size:11px;color:#687465}.catalog-stats strong{font-size:16px;color:#295246;margin-right:4px}.catalog-section{margin-top:30px}.catalog-heading .page-title{font-size:36px}.library-callout{display:flex;gap:16px;align-items:center;padding:22px 25px;background:#edf2e4;border-radius:13px;border:1px solid #dfe6d2}.library-callout strong{font-size:14px;font-weight:600}.library-callout p{font-size:12px;color:#65745f;margin:5px 0 0}.callout-icon{display:grid;place-items:center;background:#fff9;width:43px;height:43px;border-radius:11px;color:#627d50;flex:none}.folder-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.folder-card{text-align:left;border:1px solid #dfe5d7;border-radius:12px;background:#fff;padding:19px;display:flex;flex-direction:column;min-height:142px}.folder-card:hover{border-color:#8ea789;background:#fbfdf7}.folder-symbol{display:grid;place-items:center;width:33px;height:29px;border-radius:6px;background:#f2eddb;color:#a18b53;margin-bottom:12px}.folder-card strong{font-size:13px;font-weight:550;line-height:1.5}.folder-card small{font-size:10px;margin-top:auto;padding-top:8px;color:#718066;display:flex;justify-content:space-between;gap:15px}.folder-card small span{font-size:14px;color:#466644}.folder-back{margin:15px 0}.catalog-filters .search{flex-basis:100%}.catalog-filters select{flex:1;max-width:220px;min-width:110px}.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.resource-card{background:#fff;border:1px solid #dfe5d9;border-radius:13px;padding:19px;display:flex;flex-direction:column;min-height:290px;box-shadow:0 5px 18px #263d2e03}.resource-card:hover{border-color:#b5c5ad;box-shadow:0 6px 22px #263d2e08}.resource-card-top{display:flex;gap:9px;align-items:center;margin-bottom:18px}.file-icon{width:35px;height:39px;border-radius:7px;display:grid;place-items:center;background:#edf2e6;color:#5d794e;flex:none}.file-icon.physics{background:#fbf0df;color:#b18a50}.file-icon.informatics{background:#eeedf7;color:#887ba9}.file-icon.task-file{background:#e6f1ed;color:#497d68}.format-label{font-size:10px;color:#65745f}.resource-card-top>.bookmark-button{margin-left:auto;border:1px solid #e6ebdf;width:28px;height:29px}.resource-card-top>.bookmark-button svg{width:16px;height:16px}.resource-path{font-size:9px;color:#718067;margin-bottom:7px;line-height:1.7}.resource-path span{margin:0 3px}.resource-card h3{font-size:16px;line-height:1.4;margin:0 0 10px;font-weight:600}.resource-card h3 a:hover{text-decoration:underline;text-underline-offset:3px}.resource-card>p{font-size:11px;line-height:1.75;color:#6c7866;margin-bottom:13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.resource-tags{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:10px}.resource-source{font-size:10px;color:#75816c;margin-top:auto;margin-bottom:12px}.edition{background:#f7eedd;color:#826437}.resource-bottom{border-top:1px solid #edf0e7;padding-top:10px;display:flex;align-items:center;justify-content:space-between;gap:8px}.small-copy{border:1px solid #e2e9d9;border-radius:6px;background:#fff;display:grid;place-items:center;width:28px;height:28px;color:#56724b}.small-copy svg{width:14px;height:14px}.more-results{text-align:center;margin:24px 0}.catalog-note{font-size:10px;color:#728167;margin:25px 0 0;line-height:1.8}.resource-back{border:0;background:none;padding:0;text-align:left}.resource-heading{display:flex;gap:24px;align-items:flex-start;justify-content:space-between}.resource-heading h1{font-size:32px;line-height:1.25;max-width:750px;margin:0 0 12px}.resource-heading p{font-size:12px;line-height:1.85;color:#64755c;max-width:750px}.resource-actions{display:flex;gap:7px;flex-wrap:wrap;justify-content:flex-end;min-width:200px}.resource-actions>.bookmark-button{width:39px;height:39px;border:1px solid #dbe4d2}.source-strip{display:flex;gap:15px;justify-content:space-between;align-items:center;padding:14px 0;margin:18px 0 10px;font-size:10px;color:#718366;border-top:1px solid #e2e8d9;flex-wrap:wrap}.source-strip strong{font-weight:550;color:#4e6845}.source-strip span{overflow-wrap:anywhere}.pdf-frame{background:#e4e7df;border:1px solid #d8e1d0;border-radius:12px;overflow:hidden}.pdf-frame iframe{border:0;width:100%;height:78vh;min-height:540px;display:block}.viewer-help{font-size:11px;color:#6e7e63;margin:12px 0}.image-viewer{background:#e8ecdf;padding:24px;border:1px solid #d9e2d0;border-radius:12px;text-align:center}.image-viewer img{display:block;width:auto;max-width:100%;height:auto;margin:auto;max-height:none;box-shadow:0 8px 30px #172c2017}.text-resource{white-space:normal;background:#fff;border:1px solid #e1e7da;border-radius:12px;padding:26px;font-size:13px;line-height:1.9;overflow-wrap:anywhere}.external-resource{padding:55px 30px;text-align:center;background:#fff;border:1px solid #dfe6d7;border-radius:14px}.external-icon{display:grid;place-items:center;width:57px;height:57px;border-radius:15px;background:#edf3e5;color:#648255;margin:0 auto 20px}.external-icon svg{height:26px;width:26px}.external-resource h2{font-size:24px}.external-resource p{font-size:13px;color:#6f7e64;max-width:480px;margin:0 auto 24px}.external-domain{font-size:11px;color:#728169;margin-top:18px}.material-note{background:#fbf1df;border:1px solid #edd9b7;padding:15px 18px;border-radius:9px;margin:14px 0 18px;color:#7f6239;font-size:12px}.material-note strong{font-weight:600}.material-note p{margin:6px 0 0;line-height:1.8;white-space:pre-line}.guide-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;margin-top:30px}.guide-card{padding:25px;background:#fff;border:1px solid #e1e7da;border-radius:12px}.guide-card h2{font-size:18px}.guide-card textarea{width:100%;height:430px;resize:vertical;border:1px solid #dce4d3;border-radius:8px;padding:14px;font-size:12px;line-height:1.85;color:#4b5e44;background:#fcfdf9;margin-bottom:15px}.guide-card p{font-size:11px;color:#6d7d62;margin:15px 0 0}.part-select{display:flex;align-items:center;gap:12px;padding:14px 0;font-size:12px;color:#5e7551}.part-select select{padding:9px 12px;border:1px solid #d2dec6;border-radius:7px;background:#fff;font:inherit;color:inherit}
@media(max-width:1180px){.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.folder-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.resource-heading{display:block}.resource-actions{justify-content:flex-start;margin-top:20px}.catalog-heading{display:block}.catalog-heading>.secondary{margin:0 0 15px}.guide-grid{grid-template-columns:1fr}.guide-card textarea{height:350px}}
@media(max-width:640px){.catalog-heading .page-title{font-size:29px}.catalog-stats{gap:12px 18px;font-size:10px}.catalog-stats strong{font-size:14px}.resource-grid{grid-template-columns:1fr}.folder-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.folder-card{padding:14px;min-height:135px}.folder-card strong{font-size:12px}.resource-card{min-height:250px;padding:19px}.resource-card h3{font-size:17px}.resource-card>p{font-size:12px}.catalog-filters select{min-width:0;flex-basis:40%;max-width:none!important;font-size:11px}.catalog-filters #folder-filter{max-width:100%!important}.catalog-filters #grade-filter{flex-basis:100%}.library-callout{padding:18px;align-items:flex-start}.library-callout strong{font-size:12px}.library-callout p{font-size:11px}.callout-icon{width:32px;height:32px}.resource-heading h1{font-size:27px}.source-strip{gap:7px}.pdf-frame iframe{height:70vh;min-height:450px}.image-viewer{padding:8px}.external-resource{padding:35px 20px}.external-resource h2{font-size:21px}.guide-card{padding:19px}.guide-card textarea{height:420px}.resource-actions .secondary{font-size:10px;padding:8px 12px}}

.text-resource a{color:#24564a;text-decoration:underline;text-underline-offset:3px}.text-resource a:hover{color:#173e34}
.format-label{min-width:0;line-height:1.5}.resource-card-top>.bookmark-button{flex-shrink:0}.resource-card h3,.resource-source,.resource-heading h1{overflow-wrap:anywhere}.resource-authors,.source-authors{display:block;margin-top:4px}.adaptation-label{display:block;margin-top:7px;color:#47684c;font-size:10px;line-height:1.6}.source-strip>div{min-width:0}.source-strip .adaptation-label{font-size:11px}.download-resource{padding:48px 28px;text-align:center;background:#fff;border:1px solid #dfe6d7;border-radius:14px}.download-resource h2{font-size:24px}.download-resource p{font-size:13px;line-height:1.8;color:#64755c;max-width:520px;margin:0 auto 24px}.presentation-frame{background:#e5e9e2}.part-select{flex-wrap:wrap}.part-select select{max-width:100%;min-width:0}.resource-actions .secondary{white-space:normal;text-align:center}.viewer-help{line-height:1.8}
@media(max-width:640px){.download-resource{padding:32px 20px}.download-resource h2{font-size:21px}.part-select select{width:100%}.resource-actions{min-width:0}.source-strip .adaptation-label{font-size:10px}}
.resource-attribution{margin:17px 0;color:#718366;font-size:11px;border:1px solid #e0e7d7;border-radius:8px;padding:12px 15px;background:#f9fbf5}.resource-attribution>summary{font-size:11px;color:#566d4b;cursor:pointer}.resource-attribution .source-strip{margin:10px 0 0;padding:10px 0 0}.resource-card{min-height:255px}.resource-source{font-size:9px}

.full-access-note{font-size:10px;color:#526b60;max-width:175px;line-height:1.45}