*{box-sizing:border-box} :root{--teal:#008587;--dark:#2d2d2c;--paper:#f7f5f2;--line:#dcd7d2;--text:#323232;--muted:#7c7771}body{margin:0;color:var(--text);font:15px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--paper)}button,input,select,textarea{font:inherit}button,a,input,textarea,select{outline-offset:3px}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button{border:1px solid var(--line);background:white;border-radius:8px;color:inherit;padding:7px 12px;font-weight:600;font-size:13px;letter-spacing:.2px}button:hover{background:#edf6f4}button.primary{background:#247f7b;border-color:#247f7b;color:white}button.primary:hover{background:#126862}button.outline{border-color:var(--teal);color:var(--teal)}button.danger{background:#aa3737;color:white;border-color:#aa3737}button.link{border:0;background:transparent;color:var(--teal);padding:0;text-align:left;font-size:15px}button.icon{border:0;background:transparent;padding:5px;color:var(--muted);line-height:1}svg{width:19px;height:19px;vertical-align:middle;flex-shrink:0}header{height:59px;border-bottom:1px solid var(--line);background:white;display:flex;align-items:center;justify-content:space-between;padding:0 25px 0 18px;position:sticky;top:0;z-index:3}.brand{display:flex;align-items:center;gap:10px}.compass{display:inline-grid;place-items:center;width:32px;height:32px;border:3px solid 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var(--line);margin-left:10px;padding-left:18px}.row{display:flex;align-items:center;gap:10px;min-height:41px;position:relative}.row .activity-title{flex:1}.row .activity-title button{line-height:1.45}.row .assessment-icon{color:#c7731d}.row .ellipsis{margin-left:auto}.badge{display:inline-block;border-radius:4px;padding:2px 7px;background:#e2efea;color:#28796c;font-size:10px;font-weight:650;margin-left:8px;white-space:nowrap}.resource{margin:2px 0 8px 29px;font-size:11px;padding:4px 9px}.menu{position:absolute;right:2px;top:38px;width:230px;z-index:5;padding:6px;background:white;border:1px solid var(--line);border-radius:9px;box-shadow:0 3px 7px #0003}.menu button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:0;font-weight:400;font-size:14px;padding:9px}.menu button.red{color:#aa3737}.prototype-bar{position:fixed;bottom:0;left:242px;right:0;z-index:4;border-top:1px solid var(--line);background:#fffffff5;display:flex;align-items:center;justify-content:space-between;padding:7px 22px;font-size:11px;color:var(--muted)}.prototype-bar button{font-size:11px;padding:3px 9px}.collection-shell{display:flex;flex:1;min-width:0}.subnav{width:218px;flex-shrink:0;padding:29px 12px;border-right:1px solid var(--line)}.subnav .label{font-size:11px;text-transform:uppercase;color:var(--muted);padding:0 10px;margin-bottom:14px;letter-spacing:1px}.subnav button{display:block;background:transparent;border:0;text-align:left;width:100%;padding:12px 10px;margin:4px 0;font-size:14px}.subnav button.active{background:#e1efeb;color:#006f70}.collection{flex:1;padding:29px 38px 75px;min-width:0}.tabs{display:flex;border-bottom:1px solid var(--line);gap:0;margin-bottom:22px}.tabs button{border:0;background:transparent;border-radius:0;padding:10px 16px 12px;font-size:13px;color:var(--muted);border-bottom:4px solid transparent}.tabs button.active{color:var(--teal);border-bottom-color:#278880}.search{border:1px solid var(--line);border-radius:7px;padding:8px 11px;background:white;min-width:220px}.card{background:white;border:1px solid var(--line);border-radius:16px;padding:17px;margin:15px 0}.card-top{display:flex;gap:15px;align-items:flex-start;position:relative}.circle-icon{display:grid;place-items:center;flex-shrink:0;background:#ffa343;color:#8b4a00;border-radius:50%;width:33px;height:33px}.card-body{flex:1;min-width:0}.card-title{font-weight:650!important;margin-bottom:8px}.meta{color:var(--muted);font-size:12px;display:flex;gap:8px;align-items:center;margin:5px 0}.card-footer{display:flex;align-items:center;gap:14px;margin:14px 0 0 48px;padding-top:12px;border-top:1px solid #efede9}.card-footer button{font-size:12px}.empty{padding:60px 24px;text-align:center;border:1px dashed var(--line);border-radius:14px;color:var(--muted)}.preview-side{width:300px;flex-shrink:0;padding:19px 17px;display:flex;flex-direction:column;gap:9px}.preview-side h2{font-size:15px;line-height:1.6;margin:0 0 7px}.preview-side .back{align-self:flex-start;margin-bottom:7px}.preview-side .divider{border-top:1px solid var(--line);margin:7px 0}.preview-side .sub-action{border:0;background:transparent;text-align:left;color:var(--teal);padding:8px 2px;font-size:12px}.preview-main{flex:1;padding:16px 17px 65px;min-width:0}.preview-tools{display:flex;justify-content:flex-end;gap:8px;margin-bottom:16px}.activity-frame{border:1px solid var(--line);background:white;border-radius:17px;overflow:hidden;min-height:620px}.frame-top{padding:8px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.frame-top button{font-size:11px}.question{padding:26px 40px}.progress{height:7px;border:1px solid #999;border-radius:8px;margin:17px 0 24px}.progress:before{content:'';display:block;height:100%;width:50%;background:#4149ac;border-radius:8px}.answer-box{width:100%;max-width:540px;height:240px;background:#fff;border:1px solid var(--line);border-radius:7px;margin-top:20px}.answer-tools{padding:14px;background:#f8f8f8;border-bottom:1px solid var(--line);display:flex;gap:26px}.answer-placeholder{color:#999;padding:20px}.editor{max-width:850px;margin:30px auto 80px;padding:0 24px;width:100%}.notice{background:#eef5f2;color:#36695e;padding:12px 15px;border-radius:7px;font-size:13px;margin:14px 0}.editor label,.modal label.field{display:block;font-weight:600;font-size:13px;margin:17px 0 6px}.editor input,.editor textarea,.modal input.text,.modal select{width:100%;border:1px solid var(--line);border-radius:7px;background:white;padding:11px}.editor textarea{min-height:210px;resize:vertical}.editor .card{padding:25px}.editor .toolbar{margin:20px 0}.scrim{position:fixed;inset:0;background:#12242370;z-index:10;display:flex;align-items:center;justify-content:center;padding:25px}.modal{width:550px;max-width:100%;max-height:90vh;overflow:auto;background:white;border-radius:15px;box-shadow:0 20px 90px #0004;padding:26px}.modal h2{font-size:21px;margin-bottom:10px}.modal p{font-size:14px}.modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.modal-footer{display:flex;justify-content:flex-end;gap:9px;margin-top:25px;padding-top:18px;border-top:1px solid var(--line)}.choices{display:flex;gap:7px;margin:16px 0}.choices button{flex:1;font-size:12px;padding:12px 7px}.choices button.selected{border-color:var(--teal);color:var(--teal);background:#eaf6f3}.course-option{border:1px solid var(--line);border-radius:8px;padding:12px;margin:8px 0}.course-option .check{margin:0;font-weight:600}.course-option .small{margin:4px 0 0 24px}.lineage-step{border-left:2px solid #8dbbb0;margin-left:8px;padding:2px 0 20px 20px;position:relative}.lineage-step:before{content:'';position:absolute;left:-6px;top:6px;width:10px;height:10px;background:#2a8b7d;border-radius:50%}.lineage-step:last-child{padding-bottom:0}.lineage-step button{font-size:13px}.error{color:#a52e2e;font-size:13px;margin-top:12px}.detail-row{border-bottom:1px solid var(--line);padding:12px 0}.detail-row:last-child{border:0}#toast{position:fixed;bottom:55px;left:50%;transform:translateX(-50%);background:#164e47;color:white;box-shadow:0 3px 12px #0002;border-radius:8px;padding:13px 21px;z-index:20;font-size:13px;display:none}#toast.show{display:block}.inline-note{font-size:12px;color:var(--muted);margin:8px 0 20px}.count{font-size:11px;background:#eeeae4;padding:2px 6px;border-radius:4px;margin-left:5px}@media(max-width:1100px){nav.main{width:195px}.filters{width:200px}.prototype-bar{left:195px}.collection{padding:25px}.subnav{width:190px}.preview-side{width:265px}}@media(max-width:800px){nav.main{width:58px}nav.main .nav-label,nav.main .teacher,nav.main .book,nav.main .explore-logo{display:none}nav button{padding:10px 6px}.filters{display:none}.prototype-bar{left:58px}.subnav{width:155px}.collection{padding:20px 16px 70px}.preview-side{width:220px}.question{padding:20px}.view-switch{display:none}.choices{flex-wrap:wrap}.card-footer{margin-left:0;flex-wrap:wrap}.search{min-width:120px;width:100%}}

.book{height:143px}.book .cover-art{margin:3px}.modal-footer{flex-wrap:wrap}

/* Keep content actions visible without requiring hover. */
button[data-action="menu"],button[data-action="shared-menu"]{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;flex-shrink:0;padding:6px;border:1px solid #9fbfba;border-radius:8px;background:#fff;color:#226f69;line-height:1}
button[data-action="menu"] svg,button[data-action="shared-menu"] svg{width:24px;height:24px}
button[data-action="menu"]:hover,button[data-action="shared-menu"]:hover,button[data-action="menu"][aria-expanded="true"]{background:#dcefeb;border-color:#247f7b;color:#114d47}
button[data-action="menu"]:focus-visible,button[data-action="shared-menu"]:focus-visible{outline:2px solid #247f7b;outline-offset:3px}

.destination-fields{margin:20px 0 24px}.destination-fields select{height:56px;border-color:#888;font-size:15px;font-weight:400;color:#555}.destination-fields select:disabled{background:#f3f3f3;border-color:#d5d5d5;color:#aaa}.modal button:disabled{background:#d6d6d6;border-color:#d6d6d6;color:#888;opacity:1}.modal:has(.destination-fields){width:600px}.modal:has(.destination-fields) .modal-header .icon{color:var(--teal)}.card-footer .primary{padding:5px 12px}.card-footer .primary svg{width:14px;height:14px}

.placement-mode{border:0;margin:20px 0;padding:0}.placement-mode legend{font-size:13px;font-weight:600;margin-bottom:10px}.mode-option{display:flex;align-items:flex-start;gap:11px;padding:13px;border:1px solid var(--line);border-radius:9px;margin:9px 0;cursor:pointer}.mode-option input{margin:5px 0 0;accent-color:var(--teal);width:17px;height:17px;flex-shrink:0}.mode-option strong{font-size:14px}.mode-option small{display:block;color:var(--muted);font-size:12px;margin-top:3px}.mode-option.selected{border-color:var(--teal);background:#edf7f4}.mode-option.unavailable{opacity:.55;cursor:default}.modal:has(.placement-mode){width:600px}



.content-usage{margin-top:12px;border:1px solid #e0e5e1;border-radius:8px;font-size:12px;overflow:hidden}.content-usage summary{display:flex;align-items:center;gap:10px;padding:9px 11px;background:#f3f6f3;cursor:pointer;list-style:none;color:#55665d;font-weight:500}.content-usage summary::-webkit-details-marker{display:none}.content-usage summary::before{content:'';width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(-45deg);flex-shrink:0;margin-right:3px}.content-usage[open] summary::before{transform:rotate(45deg);margin-top:-4px}.content-usage summary:focus-visible{outline:2px solid var(--teal);outline-offset:-3px}.usage-assignment{margin-left:auto;padding:2px 7px;border-radius:4px;background:#e7e7e3;color:#676762;font-size:11px;white-space:nowrap}.usage-assignment.assigned{color:#247563;background:#dceee4}.usage-details{padding:14px}.usage-details h3{font-size:12px;margin:0 0 9px;color:#555}.usage-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}.usage-list li{display:flex;flex-direction:column;gap:2px}.usage-list strong{font-size:12px;font-weight:600;color:#4c605a}.usage-list li>span{color:var(--muted);font-size:12px}.usage-assignment-section{margin-top:15px;padding-top:12px;border-top:1px solid #ebece8}.usage-empty{font-size:12px;color:var(--muted);margin:0}.content-usage summary:hover{background:#eaf1eb}

.content-type-icon.assessment{color:#c7731d}.content-type-icon.reading,.readonly-icon.reading{color:#2784cc}.content-type-icon.media,.readonly-icon.media{color:#db03a6}.media-symbol{font-size:24px;line-height:1;display:inline-block;width:19px;text-align:center}.circle-icon.reading{background:#e3f0ff;color:#2784cc}.circle-icon.media{background:#fce3f7;color:#cb009e}.readonly-content{max-width:760px;padding:55px 45px}.readonly-content h1{margin:22px 0}.readonly-content p{line-height:1.9}.readonly-icon svg{width:42px;height:42px}.readonly-icon .media-symbol{font-size:44px}.readonly-frame .frame-top{padding:15px}

.course-choices{border:0;padding:0;margin:20px 0 12px}.course-choices legend{font-size:13px;font-weight:600;padding:0;margin-bottom:5px}.course-option.unavailable{opacity:.6}.course-option input:disabled{cursor:not-allowed}

.lineage-placement-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:25px 0 10px;flex-wrap:wrap}.lineage-placement-header h3{margin:0}.lineage-placement-header button{font-size:12px}.modal .placement-note{font-size:12px;line-height:1.5;white-space:normal}.book{height:143px;width:98px;padding:10px 4px 8px;display:flex;flex-direction:column;align-items:center;justify-content:space-between;overflow:hidden;line-height:1.15}.cover-title{font-size:10px;font-weight:850;letter-spacing:-.2px;line-height:1.1}.book .cover-art{font-size:30px;margin:2px 0;line-height:1}.cover-edition{font-size:9px;line-height:1.15;font-weight:650;letter-spacing:.2px;color:#285d58}

.content-usage summary{flex-wrap:wrap}.usage-list .course-usage-row{padding:10px;border:1px solid #e4e6e1;border-radius:7px;gap:4px}.course-usage-row.current-course{border-color:#8ebdb2;background:#f0f8f4;box-shadow:inset 3px 0 #278779}.course-usage-heading{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.course-usage-heading .usage-assignment{margin-left:auto}.usage-list .course-folder{color:#77736e;font-size:12px;line-height:1.5}.current-course-badge{margin-left:0;font-size:9px;color:#24695e;background:#dcefe6}.usage-current-empty{padding:10px;background:#f0f8f4;border-radius:6px;font-size:12px;color:#64766d;line-height:1.8}.usage-context{font-size:11px!important;color:var(--muted);margin:12px 0 0;line-height:1.5}

.assignments-view{flex:1;min-width:0;padding:28px 32px 75px}.assignments-view h1{font-size:32px;margin-bottom:20px}.assignment-tabs{display:flex;gap:10px;margin-bottom:32px}.assignment-tabs button{border:0;border-radius:24px;background:#d8d8d8;font-size:13px;padding:7px 14px}.assignment-tabs button.active{background:#247f7b;color:white}.assignment-group{margin:20px 0 30px}.assignment-group>summary{list-style:none;cursor:pointer;display:flex;gap:9px;align-items:center;font-size:18px;font-weight:650;padding:3px 0 10px}.assignment-group>summary::-webkit-details-marker{display:none}.assignment-group>summary::after{content:'⌄';margin-left:auto;color:var(--muted);font-size:20px}.assignment-group[open]>summary::after{content:'⌃'}.assignment-count{font-size:12px;font-weight:500;background:#ccfaf7;color:#116e69;padding:2px 8px;border-radius:20px}.assignment-card{padding:24px;margin:17px 0}.assignment-card .card-top{gap:18px}.assignment-card .content-type-icon{margin-top:2px}.assignment-meta{font-size:12px;color:#5a5754;margin-top:1px}.assignment-meta>span{padding:0 5px}.assignment-resource{margin:16px 0 0;font-weight:500}.assignment-demo-note{margin-top:36px}

#toast{max-width:calc(100vw - 36px);align-items:center;gap:14px;line-height:1.5}#toast.show{display:flex}#toast .toast-action{background:#e5f5ed;color:#155448;border:1px solid #b3dacf;white-space:nowrap;font-size:12px;padding:6px 10px}#toast .toast-close{background:transparent;border:0;color:white;font-size:20px;line-height:1;padding:3px 4px}@media(max-width:700px){#toast.show{flex-wrap:wrap;min-width:280px}}

.original-disclosure{margin:0 40px 10px 29px;font-size:12px}.original-disclosure>summary{display:flex;align-items:center;gap:8px;width:fit-content;padding:3px 0;list-style:none;color:#7b7973;cursor:pointer;font-size:12px;line-height:1.5}.original-disclosure>summary::-webkit-details-marker{display:none}.original-disclosure>summary::before{content:'';display:inline-block;width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(-45deg);margin:0 2px}.original-disclosure[open]>summary::before{transform:rotate(45deg);margin-top:-3px}.original-disclosure>summary:hover{color:var(--teal)}.original-disclosure>summary:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:2px}.original-child{display:flex;align-items:flex-start;gap:10px;margin:6px 0 3px 3px;padding:10px 0 9px 17px;border-left:1px solid #dcded9}.original-child .content-type-icon{margin-top:2px}.original-child .original-title{font-size:13px;font-weight:500;line-height:1.5}.original-label{display:block;color:var(--muted);font-size:10px;margin-top:3px}



.publisher-update-indicator{position:relative;display:inline-flex;align-items:center;justify-content:center;vertical-align:middle;width:20px;height:20px;margin-left:7px;color:#335a91;cursor:default;font-weight:400;line-height:1}.publisher-update-indicator>svg{width:19px;height:19px}.publisher-update-indicator:focus-visible{outline:2px solid #335a91;outline-offset:3px;border-radius:50%}.publisher-update-tooltip{display:none;position:absolute;z-index:8;top:calc(100% + 8px);right:0;width:270px;max-width:70vw;padding:10px 12px;border-radius:6px;background:#303a48;color:white;box-shadow:0 3px 10px #0002;font-size:12px;line-height:1.5;text-align:left;white-space:normal;pointer-events:none}.publisher-update-indicator:hover>.publisher-update-tooltip,.publisher-update-indicator:focus>.publisher-update-tooltip{display:block}


.copy-placement-badge{display:inline-flex;position:relative;align-items:center;gap:5px;padding:2px 7px;vertical-align:middle;border:1px solid transparent;line-height:1.5;white-space:nowrap;cursor:default}.copy-placement-badge.copy-replaced{background:#e0f2ef;color:#126d65;border-color:#a5d4ca}.copy-placement-badge.copy-added{background:#f0e8fa;color:#6b4391;border-color:#cfb8e7}.copy-placement-badge.activity-created{background:#fff0d4;color:#865608;border-color:#e4c891}

.copy-placement-badge>svg{width:13px;height:13px;stroke-width:1.8}.copy-placement-badge:focus-visible{outline:2px solid currentColor;outline-offset:3px}.ownership-pill-tooltip{display:none;position:absolute;z-index:8;top:calc(100% + 8px);right:0;width:240px;max-width:70vw;background:#303a48;color:white;padding:10px 12px;border-radius:6px;box-shadow:0 3px 10px #0002;font-size:12px;line-height:1.5;font-weight:400;text-align:left;white-space:normal;pointer-events:none}.copy-placement-badge:hover>.ownership-pill-tooltip,.copy-placement-badge:focus>.ownership-pill-tooltip{display:block}