:root{--navy:#081b3a;--navy-2:#0d2b5c;--ink:#27364a;--heading:#071428;--blue:#2563eb;--blue-2:#1d4ed8;--rust:#c2552f;--muted:#5f7088;--line:#d9e2ef;--line-strong:#6f91c2;--paper:#fff;--wash:#f7faff;--soft:#eef6ff;--sky:#dbeafe;--success:#0c857a;--danger:#a8421f;--shadow-soft:0 10px 28px #081b3a12;color:var(--ink);background:var(--wash);font-family:Inter,system-ui,-apple-system,PingFang SC,Noto Sans SC,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;min-height:100%}body{background:var(--wash);min-height:100%;margin:0}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}:focus-visible{outline-offset:3px;outline:3px solid #7dd3fc}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--heading)}.brand-header{z-index:50;background:var(--navy);color:#fff;position:sticky;top:0;box-shadow:0 1px #ffffff14}.desktop-brand-header,.mobile-brand-header{justify-content:space-between;align-items:center;min-height:68px;padding:0 28px}.desktop-brand-header{display:flex}.mobile-brand-header{display:none}.brand-home-link{align-items:center;min-width:48px;min-height:48px;display:inline-flex}.brand-wordmark{width:142px;height:auto}.brand-symbol{object-fit:contain;width:42px;height:42px}.brand-on-light{display:none}.brand-symbol.brand-on-light{position:relative;overflow:hidden}.brand-symbol-source{width:387.978%;max-width:none;height:auto;position:absolute;top:50%;left:0;transform:translateY(-50%)}.environment-badge{color:#dff3ff;letter-spacing:.02em;background:#0d2b5cc7;border:1px solid #7dd3fc59;border-radius:999px;align-items:center;min-height:30px;padding:0 12px;font-size:12px;display:inline-flex}.environment-badge:before{content:"";background:#7dd3fc;border-radius:50%;width:7px;height:7px;margin-right:8px}.landing-shell,.center-shell{place-items:center;min-height:calc(100vh - 68px);padding:48px 24px;display:grid}.hero-card{border:1px solid var(--line);background:var(--paper);width:min(960px,100%);box-shadow:var(--shadow-soft);border-radius:18px;padding:clamp(40px,7vw,76px)}.eyebrow{color:var(--blue);letter-spacing:.12em;text-transform:uppercase;margin:0 0 10px;font-size:12px;font-weight:800}.hero-card h1{letter-spacing:-.04em;max-width:680px;margin-bottom:16px;font-size:clamp(40px,6vw,64px);line-height:1.08}.lede{max-width:660px;color:var(--muted);font-size:20px;line-height:1.7}.choice-grid{grid-template-columns:1fr 1fr;gap:16px;margin-top:40px;display:grid}.choice-card{border:1px solid var(--line-strong);background:#fff;border-radius:14px;flex-direction:column;justify-content:center;gap:10px;min-height:132px;padding:26px;transition:border-color .18s,box-shadow .18s,transform .18s;display:flex}.choice-card:hover{border-color:var(--blue);box-shadow:var(--shadow-soft);transform:translateY(-2px)}.choice-card.primary{border-color:var(--blue);background:var(--blue);color:#fff}.choice-card span{font-size:20px;font-weight:780}.choice-card small{opacity:.82;font-size:14px;line-height:1.6}.evidence-note,.muted,.microcopy{color:var(--muted)}.evidence-note{margin:26px 0 0;font-size:13px}.panel{border:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow-soft);border-radius:14px}.panel.narrow{width:min(540px,100%);padding:40px}.panel.narrow h1{font-size:36px;line-height:1.2}.stack-form,.form-section{flex-direction:column;gap:20px;display:flex}label{color:var(--ink);flex-direction:column;gap:8px;font-size:14px;font-weight:700;display:flex}input,textarea,select{border:1px solid var(--line-strong);width:100%;color:var(--heading);resize:vertical;background:#fff;border-radius:9px;outline:none;padding:13px 14px;line-height:1.55}input:focus,textarea:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--sky)}.button{cursor:pointer;border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;min-height:48px;padding:0 20px;font-weight:780;display:inline-flex}.button:disabled{opacity:.52;cursor:not-allowed}.primary-button{background:var(--blue);color:#fff}.primary-button:not(:disabled):hover{background:var(--blue-2)}.secondary-button{border-color:var(--line-strong);color:var(--navy-2);background:#fff}.danger-button{color:var(--danger);background:#fff5f1;border-color:#e9b6a5}.danger-button:hover{border-color:var(--danger)}.light-button{color:var(--navy-2);background:#fff}.error-box,.success-box,.test-notice{border-radius:9px;padding:13px 15px;font-size:14px;line-height:1.55}.error-box{color:var(--danger);background:#fff5f1;border:1px solid #e9b6a5}.success-box{color:#076b62;background:#effaf8;border:1px solid #9fd7cf;margin:16px 0}.test-notice{color:#71501b;background:#fffaf0;border:1px solid #e2cfaa}.admin-workspace{grid-template-columns:220px minmax(0,1fr);min-height:calc(100vh - 68px);display:grid}.admin-sidebar{background:linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);color:#fff;flex-direction:column;justify-content:space-between;height:calc(100vh - 68px);padding:34px 20px 24px;display:flex;position:sticky;top:68px}.sidebar-label{color:#9fdffc;letter-spacing:.12em;margin:0 12px 18px;font-size:12px;font-weight:800}.sidebar-nav{flex-direction:column;gap:8px;display:flex}.sidebar-nav a,.sidebar-exit{color:#dbeafe;border-radius:9px;align-items:center;min-height:46px;padding:0 14px;font-size:14px;font-weight:700;display:flex}.sidebar-nav a:hover,.sidebar-nav a.active{background:var(--blue);color:#fff}.sidebar-exit{color:#bcd1ec}.admin-main{min-width:0;padding:46px clamp(28px,4vw,64px) 72px}.admin-header{justify-content:space-between;align-items:flex-start;gap:28px;max-width:1180px;margin:0 auto 30px;display:flex}.admin-header h1{letter-spacing:-.035em;margin:0 0 10px;font-size:clamp(36px,4vw,48px);line-height:1.12}.admin-header p:last-child{max-width:720px;color:var(--muted);margin-bottom:0;line-height:1.6}.step-pill{background:var(--soft);color:var(--navy-2);border-radius:999px;flex:none;padding:8px 12px;font-size:13px;font-weight:750}.builder-grid{grid-template-columns:1fr 1fr;align-items:start;gap:18px;max-width:1180px;margin:0 auto;display:grid}.project-only-builder{grid-template-columns:1fr;max-width:900px}.builder-grid .full{grid-column:1/-1}.form-section{padding:28px;scroll-margin-top:92px}.form-section h2{margin:-31px 0 6px 46px;font-size:22px}.section-number{background:var(--soft);width:34px;height:34px;color:var(--blue);border-radius:8px;place-items:center;font-size:12px;font-weight:850;display:grid}.two-columns{grid-template-columns:1fr 1fr;gap:12px;display:grid}.publish-card{background:var(--navy);color:#fff;border-radius:12px;grid-column:1/-1;justify-content:space-between;align-items:center;gap:30px;padding:26px 30px;scroll-margin-top:92px;display:flex}.publish-card h2{color:#fff;margin-bottom:7px}.publish-card p{color:#c8d7ea;margin-bottom:0;line-height:1.6}.publish-card .eyebrow{color:#7dd3fc}.publish-card .button{flex:none}.completion-card{width:min(920px,100%);padding:46px}.success-mark{width:52px;height:52px;color:var(--success);background:#e7f5f2;border-radius:50%;place-items:center;font-size:26px;font-weight:850;display:grid}.completion-card h1{font-size:40px;line-height:1.2}.summary-list{border-top:1px solid var(--line);margin:30px 0}.summary-list div{border-bottom:1px solid var(--line);grid-template-columns:90px 1fr;padding:15px 0;display:grid}.summary-list dt{color:var(--muted)}.summary-list dd{color:var(--heading);margin:0;font-weight:750}.invite-box{border:1px solid var(--line);background:var(--soft);border-radius:9px;padding:18px}.invite-box span{color:var(--muted);margin-bottom:8px;font-size:12px;display:block}.invite-box code{overflow-wrap:anywhere}.invitation-grid{grid-template-columns:190px 1fr;gap:12px;display:grid}.invitation-grid.with-qr{grid-template-columns:190px 1fr 180px;align-items:stretch}.invite-code-box{background:var(--navy);color:#fff;border-radius:9px;flex-direction:column;justify-content:center;padding:18px;display:flex}.invite-code-box span,.invite-code-box small{color:#bcd1ec}.invite-code-box span{font-size:12px}.invite-code-box strong{color:#fff;letter-spacing:.12em;margin:5px 0 3px;font-size:28px}.invite-code-box small{font-size:11px;line-height:1.45}.invitation-qr{border:1px solid var(--line);background:#fff;border-radius:9px;flex-direction:column;justify-content:center;align-items:center;min-height:170px;padding:10px;display:flex}.invitation-qr img{width:136px;height:136px}.invitation-qr span{color:var(--muted);font-size:11px}.cohort-summary-block{margin-top:28px}.compact-cohort-list{border:1px solid var(--line);border-radius:9px;overflow:hidden}.compact-cohort-list>div{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:46px;padding:0 14px;display:flex}.compact-cohort-list>div:last-child{border-bottom:0}.compact-cohort-list>div.current{background:var(--soft);color:var(--navy-2);font-weight:750}.compact-cohort-list small{color:var(--muted)}.button-row{gap:10px;margin-top:20px;display:flex}.invitation-safety{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:24px;margin-top:28px;padding-top:24px;display:flex}.invitation-safety h2{margin-bottom:6px;font-size:18px}.invitation-safety p{max-width:420px;color:var(--muted);margin-bottom:0;font-size:13px;line-height:1.6}.invitation-safety form{flex:none}.operations-shell{min-height:calc(100vh - 68px);padding:46px clamp(22px,5vw,72px) 80px}.operations-heading{justify-content:space-between;align-items:flex-start;gap:24px;max-width:1180px;margin:0 auto 28px;display:flex}.operations-heading h1{letter-spacing:-.035em;margin-bottom:8px;font-size:clamp(36px,4vw,48px)}.operations-heading p:last-child{color:var(--muted);margin-bottom:0}.operations-feedback{max-width:1180px;margin:0 auto 18px}.operations-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:18px;max-width:1180px;margin:0 auto;display:grid}.operations-card{padding:28px}.operations-card .section-title{margin-bottom:20px}.operations-card .section-title h2{margin:3px 0 0;font-size:25px}.member-form,.roster-form{background:var(--soft);border-radius:10px;flex-direction:column;gap:16px;margin:20px 0 26px;padding:20px;display:flex}.member-form fieldset{border:0;flex-wrap:wrap;gap:10px 18px;margin:0;padding:0;display:flex}.member-form legend{width:100%;color:var(--ink);margin-bottom:10px;font-size:14px;font-weight:750}.check-row{flex-direction:row;align-items:center;gap:8px;min-height:44px;font-weight:650;display:flex}.check-row input{width:20px;height:20px;padding:0}.member-list,.roster-list{border:1px solid var(--line);border-radius:10px;overflow:hidden}.member-row{border-bottom:1px solid var(--line);grid-template-columns:1fr auto auto;align-items:center;gap:12px;min-height:72px;padding:14px;display:grid}.member-row:last-child{border-bottom:0}.member-row p{color:var(--muted);margin:5px 0 0;font-size:12px;line-height:1.45}.status-pill{border-radius:999px;padding:5px 8px;font-size:11px;font-weight:800}.status-pill.active{color:var(--success);background:#e7f5f2}.status-pill.disabled{color:var(--muted);background:#f0f2f5}.text-button{min-height:44px;color:var(--blue);cursor:pointer;background:0 0;border:0;padding:0 8px;font-weight:750}.text-button.danger{color:var(--danger)}.import-result{background:#effaf8;border:1px solid #9fd7cf;border-radius:10px;margin:24px 0;padding:20px}.import-result h3{margin-bottom:14px;font-size:18px}.metric-row{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.metric-row div{background:#fff;border-radius:8px;flex-direction:column;padding:12px;display:flex}.metric-row strong{color:var(--navy);font-size:24px}.metric-row span{color:var(--muted);font-size:12px}.import-result ul{color:var(--muted);margin:16px 0 0;padding-left:20px;font-size:13px;line-height:1.7}.roster-list>div{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;min-height:48px;padding:0 14px;display:flex}.roster-list>div:last-child{border-bottom:0}.roster-list code{color:var(--muted);font-size:12px}.mobile-shell{background:var(--wash);width:min(480px,100%);min-height:calc(100vh - 68px);margin:0 auto;box-shadow:0 0 48px #081b3a14}.join-hero{background:var(--navy);color:#fff;padding:42px 24px 60px}.join-hero .eyebrow{color:#7dd3fc}.join-hero h1{color:#fff;margin:18px 0 10px;font-size:36px;line-height:1.15}.join-hero p:last-child{color:#c9d7ea;margin-bottom:0;line-height:1.6}.join-card{margin:-28px 16px 24px;padding:24px;position:relative}.date-row{border-bottom:1px solid var(--line);flex-direction:column;gap:6px;padding-bottom:18px;display:flex}.date-row span{color:var(--rust);letter-spacing:.08em;font-size:12px;font-weight:800}.join-card .test-notice{margin:18px 0}.full-button{width:100%}.microcopy{text-align:center;margin:13px 0 0;font-size:12px;line-height:1.5}.join-landing-page{background:#fff}.code-entry-card{padding-top:30px}.code-entry-card .error-box{margin-bottom:18px}.code-input{text-align:center;min-height:60px;color:var(--navy);letter-spacing:.22em;text-transform:uppercase;font-size:25px;font-weight:850}.entry-divider{color:var(--muted);align-items:center;gap:12px;margin:24px 0 16px;font-size:12px;display:flex}.entry-divider:before,.entry-divider:after{background:var(--line);content:"";flex:1;height:1px}.entry-help{text-align:center;margin-bottom:0;font-size:13px;line-height:1.6}.student-qr-scanner{gap:14px;display:grid}.student-qr-scanner.active{border:1px solid var(--line);background:var(--wash);border-radius:12px;padding:16px}.student-qr-scanner-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.student-qr-scanner-heading strong{color:var(--navy);font-size:17px}.student-qr-viewfinder{aspect-ratio:1;background:#081a38;border-radius:14px;position:relative;overflow:hidden}.student-qr-viewfinder video{object-fit:cover;width:100%;height:100%;display:block}.student-qr-viewfinder>span{border:3px solid #fff;border-radius:14px;position:absolute;inset:15%;box-shadow:0 0 0 999px #081a3847}.student-qr-scanner p{margin:0;font-size:13px;line-height:1.55}.recognized-code{justify-content:space-between;align-items:center;padding:16px 0 0;display:flex}.recognized-code span{color:var(--muted);font-size:13px}.recognized-code strong{color:var(--navy);letter-spacing:.12em;font-size:20px}.cooldown-help{margin:18px 0;font-size:14px;line-height:1.65}.auth-card .test-notice,.auth-card .error-box{margin:0 0 20px}.auth-card input{min-height:54px;font-size:18px}.learner-page{padding-bottom:calc(86px + env(safe-area-inset-bottom))}.learner-header{background:#fff;justify-content:space-between;gap:16px;padding:34px 22px 20px;display:flex}.learner-header h1{margin-bottom:8px;font-size:31px;line-height:1.18}.learner-header p:last-child{color:var(--muted);margin-bottom:0;line-height:1.55}.learner-account-actions{align-content:start;justify-items:center;gap:2px;display:grid}.learner-account-actions .text-button{font-size:13px}.avatar{background:var(--soft);width:44px;height:44px;color:var(--blue);border-radius:50%;flex:none;place-items:center;font-weight:850;display:grid}.today-card{background:var(--navy);color:#fff;box-shadow:var(--shadow-soft);border-radius:16px;margin:14px 16px 28px;padding:26px}.today-card>span{color:#7dd3fc;font-size:12px;font-weight:750}.today-card h2{color:#fff;margin:14px 0 8px;font-size:25px;line-height:1.25}.today-card p{color:#cfdbeb;line-height:1.65}.course-list{padding:0 16px}.workshop-list{flex-direction:column;gap:14px;padding:14px 16px 28px;display:flex}.workshop-card{border:1px solid var(--line);box-shadow:var(--shadow-soft);background:#fff;border-radius:16px;padding:22px;transition:border-color .18s,transform .18s}.workshop-card:hover{border-color:var(--line-strong);transform:translateY(-1px)}.workshop-card-top{color:var(--rust);justify-content:space-between;align-items:center;font-size:12px;font-weight:800;display:flex}.workshop-card-top time{color:var(--muted);font-weight:650}.workshop-card h2{margin:16px 0 7px;font-size:24px;line-height:1.25}.workshop-card>p{color:var(--muted);margin-bottom:20px;font-size:14px}.workshop-card-course{border-top:1px solid var(--line);color:var(--blue);justify-content:space-between;align-items:center;gap:12px;padding-top:16px;font-weight:750;display:flex}.workshop-card-course b{font-size:24px}.empty-workshops{margin:16px;padding:28px}.empty-workshops p{color:var(--muted);line-height:1.6}.section-title{justify-content:space-between;align-items:center;display:flex}.section-title h2{font-size:21px}.section-title span{color:var(--muted);font-size:13px}.course-row{border:1px solid var(--line);background:#fff;border-radius:12px;grid-template-columns:44px 1fr 18px;align-items:center;gap:10px;min-height:76px;margin-bottom:10px;padding:16px 14px;display:grid}.course-row:hover{border-color:var(--line-strong)}.course-index{color:var(--blue);font-weight:850}.course-row strong,.course-row small{display:block}.course-row small{color:var(--muted);margin-top:5px;line-height:1.45}.course-row b{color:var(--muted);font-size:24px}.bottom-nav{z-index:30;width:min(480px,100%);min-height:72px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);color:var(--muted);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#fffffff5;justify-content:space-around;align-items:center;font-size:13px;display:flex;position:fixed;bottom:0}.bottom-nav .active{color:var(--blue);font-weight:850}.learner-bottom-nav a{border-radius:9px;flex-direction:column;justify-content:center;align-items:center;gap:5px;min-width:64px;min-height:48px;display:flex}.nav-dot{background:var(--line-strong);border-radius:999px;width:18px;height:4px}.learner-bottom-nav .active .nav-dot{background:var(--blue)}.learner-section-header{background:#fff;padding:34px 22px 26px}.learner-section-header h1{letter-spacing:-.03em;margin-bottom:8px;font-size:36px}.learner-section-header p:last-child{color:var(--muted);margin-bottom:0;line-height:1.6}.spaced-list{padding-top:20px}.learner-empty-state{text-align:center;margin:24px 16px;padding:36px 26px}.learner-empty-state>span{width:52px;height:52px;color:var(--success);background:#e7f5f2;border-radius:50%;place-items:center;margin:0 auto 18px;font-size:22px;font-weight:850;display:grid}.learner-empty-state h2{font-size:22px}.learner-empty-state p{color:var(--muted);margin-bottom:0;line-height:1.7}.learner-profile-card{align-items:center;gap:16px;margin:20px 16px 12px;padding:22px;display:flex}.avatar.large{width:56px;height:56px;font-size:19px}.learner-profile-card h2{margin-bottom:6px;font-size:20px}.learner-profile-card p{color:var(--muted);margin-bottom:0;font-size:14px}.learner-info-list{margin:12px 16px;overflow:hidden}.learner-info-list>div{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;min-height:58px;padding:0 18px;display:flex}.learner-info-list>div:last-child{border-bottom:0}.learner-info-list span{color:var(--muted)}.learner-info-list strong{text-align:right;color:var(--navy);font-size:14px}.learner-all-link{width:calc(100% - 32px);margin:8px 16px}.course-page{background:#fff;width:min(760px,100%);min-height:calc(100vh - 68px);margin:0 auto}.course-topbar{border-bottom:1px solid var(--line);grid-template-columns:42px 1fr auto;align-items:center;min-height:62px;padding:10px 18px;display:grid}.course-topbar a{place-items:center;width:42px;height:42px;font-size:34px;line-height:1;display:grid}.course-topbar>span:nth-child(2){text-align:center;font-weight:750}.version-tag{color:var(--success);background:#e7f5f2;border-radius:999px;padding:5px 8px;font-size:11px;font-weight:850}.course-page article{padding:48px clamp(22px,7vw,72px) 88px}.course-page h1{letter-spacing:-.035em;margin-bottom:18px;font-size:clamp(36px,7vw,56px);line-height:1.12}.course-summary{color:var(--muted);font-size:19px;line-height:1.75}.lesson-section{border-top:1px solid var(--line);margin-top:48px;padding-top:30px}.lesson-section h2{margin:10px 0 14px;font-size:28px;line-height:1.25}.lesson-section>p{font-size:17px;line-height:1.8}.lesson-kicker{color:var(--rust);font-size:12px;font-weight:850}.reflection-box{border-left:4px solid var(--rust);background:#fff8f3;border-radius:0 9px 9px 0;flex-direction:column;gap:7px;margin-top:28px;padding:20px;display:flex}.reflection-box span{color:var(--muted);line-height:1.6}.learner-primary-resource{background:#f7faff;border:1px solid #c8d6e9;border-radius:14px;margin-top:24px;overflow:hidden}.learner-primary-resource>div{justify-content:space-between;align-items:center;gap:14px;padding:14px 16px;display:flex}.learner-primary-resource>div span{color:var(--blue);font-size:12px;font-weight:850}.learner-primary-resource object{border:0;border-top:1px solid var(--line);background:#fff;width:100%;min-height:360px;display:block}.learner-primary-resource>p{color:var(--danger);margin:0;padding:18px}.learner-primary-resource a{color:var(--blue);font-weight:750}.learner-side-resources{background:var(--soft);border-radius:12px;margin-top:14px;padding:16px}.learner-side-resources>strong{color:var(--navy);margin-bottom:10px;font-size:13px;display:block}.learner-side-resources>div{flex-wrap:wrap;gap:8px;display:flex}.learner-side-resources a,.learner-side-resources span{border:1px solid var(--line);color:var(--navy);background:#fff;border-radius:9px;padding:9px 12px;font-size:13px;font-weight:700}.learner-side-resources span[aria-disabled=true]{color:var(--muted)}.error-mark{width:52px;height:52px;color:var(--danger);background:#fff1ec;border-radius:50%;place-items:center;font-size:27px;font-weight:900;display:grid}.text-link{color:var(--blue);font-weight:750}.single-column-builder{grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr)}.reuse-course-card{padding:28px}.reuse-course-card h2{font-size:24px}.reuse-course-card p:last-child{color:var(--muted);margin-bottom:0;line-height:1.65}.course-authoring-main{background:linear-gradient(180deg, #f8fbff 0, var(--wash) 460px)}.course-authoring-header,.course-page-feedback,.course-editor-shell,.published-version-grid,.protocol-error-card{max-width:1180px;margin-left:auto;margin-right:auto}.course-authoring-header .status-pill{flex:none;margin-top:8px}.course-page-feedback{margin-bottom:18px}.published-version-grid{grid-template-columns:minmax(0,1.5fr) minmax(300px,.5fr);align-items:start;gap:18px;display:grid}.published-version-card,.continue-version-card,.protocol-error-card,.course-document-card{padding:30px}.tool-recovery-card>p:not(.eyebrow){max-width:760px;color:var(--muted);line-height:1.7}.tool-recovery-card ul{gap:10px;margin:22px 0;padding:0;list-style:none;display:grid}.tool-recovery-card li,.recovery-guidance{border:1px solid var(--line);border-radius:10px;flex-direction:column;gap:5px;padding:14px 16px;display:flex}.tool-recovery-card li span,.recovery-guidance span{color:var(--muted);line-height:1.6}.recovery-guidance{background:#fffaf0;border-color:#ead9aa;margin-bottom:18px}.editor-card-heading{justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:24px;display:flex}.editor-card-heading h2{margin-bottom:0;font-size:26px}.published-summary{max-width:760px;color:var(--muted);font-size:17px;line-height:1.75}.version-metrics{grid-template-columns:repeat(3,1fr);gap:10px;margin:28px 0;display:grid}.version-metrics div{background:var(--soft);border-radius:10px;flex-direction:column;justify-content:center;min-height:92px;padding:16px;display:flex}.version-metrics strong{color:var(--navy);font-size:28px}.version-metrics span{color:var(--muted);margin-top:4px;font-size:12px}.immutable-note{border-left:4px solid var(--blue);background:#f1f6ff;border-radius:0 10px 10px 0;flex-direction:column;gap:7px;padding:18px;display:flex}.immutable-note span{color:var(--muted);line-height:1.6}.continue-version-card{position:sticky;top:92px}.continue-version-card h2{margin:10px 0;font-size:25px}.continue-version-card p:not(.eyebrow){color:var(--muted);line-height:1.7}.course-editor-shell,.course-editor{flex-direction:column;gap:20px;display:flex}.course-editor-shell{padding-bottom:calc(112px + env(safe-area-inset-bottom))}.resource-limit{color:var(--muted);font-size:12px}.resource-file-field input{background:#fff;min-height:48px;padding:10px 12px}.resource-feedback{margin:16px 0 0}.resource-empty{color:var(--muted);margin:0}.resource-list{border:1px solid var(--line);border-radius:10px;overflow:hidden}.resource-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:18px;min-height:70px;padding:14px 16px;display:flex}.resource-row:last-child{border-bottom:0}.resource-row.missing{background:#fff8f3}.resource-row>div:first-child{flex-direction:column;gap:5px;min-width:0;display:flex}.resource-row>div:first-child span{color:var(--muted);font-size:12px}.resource-row>div:last-child{align-items:center;gap:8px;display:flex}.node-resource-picker{border:1px solid var(--line);border-radius:10px;margin:20px 0 0;padding:18px}.node-resource-picker legend{color:var(--blue);padding:0 8px;font-size:13px;font-weight:800}.resource-picker-help{color:var(--muted);margin:0 0 14px;font-size:13px;line-height:1.6}.resource-placement-row{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:14px;padding:10px 0;display:grid}.resource-placement-row:last-child{border-bottom:0}.resource-placement-row>label{grid-template-columns:minmax(0,1fr) minmax(210px,.45fr);align-items:center;gap:14px;display:grid}.resource-placement-row>label>span{min-width:0;color:var(--navy);align-items:center;gap:8px;font-size:14px;font-weight:700;display:flex}.resource-placement-row select{min-height:42px}.resource-order-controls{justify-content:flex-end;gap:4px;min-width:92px;display:flex}.resource-order-controls .text-button:disabled{color:var(--muted);cursor:not-allowed;opacity:.5}.resource-missing-label{color:var(--danger);margin-left:auto;font-size:11px}.course-document-card{grid-template-columns:minmax(260px,.7fr) minmax(0,1.3fr);gap:22px;display:grid}.course-document-card .editor-card-heading{grid-column:1/-1;margin-bottom:0}.course-chapter{padding-top:8px;scroll-margin-top:92px}.course-chapter-heading{justify-content:space-between;align-items:end;gap:24px;margin:0 4px 14px;display:flex}.course-chapter-heading label{width:min(520px,100%)}.course-chapter-heading input{color:var(--navy);background:0 0;border-color:#0000;padding-left:0;font-size:24px;font-weight:800}.course-chapter-heading input:focus{background:#fff;padding-left:13px}.course-chapter-heading>span{color:var(--muted);flex:none;padding-bottom:13px;font-size:13px}.course-scene-list{flex-direction:column;gap:16px;scroll-margin-top:92px;display:flex}.course-scene-card{padding:26px}.course-scene-card>header{justify-content:space-between;align-items:center;margin-bottom:22px;display:flex}.course-scene-card>header>div{align-items:center;gap:10px;display:flex}.course-scene-card h3{margin:0;font-size:20px}.node-view-grid{grid-template-columns:1fr 1fr;gap:14px;margin:20px 0;display:grid}.node-view-grid fieldset{border:1px solid var(--line);background:#fbfdff;border-radius:11px;flex-direction:column;gap:16px;min-width:0;margin:0;padding:20px;display:flex}.node-view-grid legend{color:var(--blue);padding:0 8px;font-size:13px;font-weight:800}.node-contract-note{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px 12px;margin-top:20px;padding-top:16px;font-size:11px;display:flex}.node-contract-note code{color:var(--navy-2)}.node-contract-note span:last-child{background:var(--soft);color:var(--blue);border-radius:999px;margin-left:auto;padding:5px 8px;font-weight:750}.add-scene-button{border-style:dashed;width:100%;margin-top:12px}.add-scene-button:disabled{opacity:.5;cursor:not-allowed}.editor-feedback{margin:0}.editor-feedback strong{display:block}.editor-feedback ul{margin:10px 0 0;padding-left:20px}.course-editor-actions{z-index:20;bottom:calc(88px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fffffff5;border:1px solid #c8d6e9;border-radius:12px;justify-content:space-between;align-items:center;gap:24px;padding:18px 20px;scroll-margin-top:92px;display:flex;position:sticky;box-shadow:0 16px 42px #081b3a24}.course-editor-actions>div:first-child{flex-direction:column;gap:4px;display:flex}.course-editor-actions>div:first-child span,.permission-note{color:var(--muted);font-size:12px}.course-editor-actions>div:last-child{align-items:center;gap:10px;display:flex}.permission-note{max-width:180px;line-height:1.5}.authoring-step-nav{border:1px solid var(--line);background:#fff;border-radius:14px;grid-template-columns:repeat(3,1fr);display:grid;overflow:hidden}.authoring-step-nav button{border:0;border-right:1px solid var(--line);min-width:0;min-height:86px;color:var(--muted);text-align:left;cursor:pointer;background:#fff;grid-template-rows:auto auto;grid-template-columns:34px minmax(0,1fr);align-content:center;gap:2px 10px;padding:14px 16px;display:grid}.authoring-step-nav button:last-child{border-right:0}.authoring-step-nav button.active{background:var(--soft);color:var(--blue)}.authoring-step-nav button>span{width:34px;height:34px;color:inherit;background:#edf3fb;border-radius:9px;grid-row:1/3;place-items:center;font-weight:850;display:grid}.authoring-step-nav strong{color:inherit;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.authoring-step-nav small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.authoring-stage-header{justify-content:space-between;align-items:flex-start;gap:24px;padding:8px 2px 0;display:flex}.authoring-stage-header h2{letter-spacing:-.025em;margin-bottom:0;font-size:32px}.outline-back-link{background:var(--soft);min-height:38px;color:var(--blue);cursor:pointer;border:1px solid #a9c5f4;border-radius:9px;margin:0 0 12px;padding:0 13px;font-weight:800}.outline-back-link:hover,.outline-back-link:focus-visible{border-color:var(--blue);background:#e5efff}.draft-save-state{color:var(--muted);align-items:center;gap:.4rem;margin-top:.65rem;font-size:.86rem;display:inline-flex}.draft-save-state:before{content:"";background:#1f8a5b;border-radius:999px;width:.55rem;height:.55rem}.draft-save-state.dirty{color:#9b5c08}.draft-save-state.dirty:before{background:#d88916}.ai-button{background:var(--blue);color:#fff;flex-direction:column;flex:none;align-items:flex-start;min-width:170px}.ai-button span{opacity:.82;font-size:11px;font-weight:600}.course-floating-ai-trigger{z-index:45;top:92px;right:max(24px, env(safe-area-inset-right));background:var(--blue);border:1px solid #a9c5f4;border-radius:12px;align-items:stretch;width:min(238px,100vw - 48px);margin:0;display:flex;position:fixed;box-shadow:0 12px 30px #081b3a2e}.course-floating-ai-trigger .ai-button{border:0;border-radius:0 11px 11px 0;width:100%;min-width:0}.course-floating-ai-drag{color:#fff;cursor:grab;touch-action:none;background:#254bc9;border:0;border-right:1px solid #ffffff4d;border-radius:11px 0 0 11px;flex:0 0 34px;place-items:center;width:34px;font-size:20px;display:grid}.course-floating-ai-drag:active{cursor:grabbing}.authoring-outline,.lesson-editor,.task-editor-card,.component-editor-card,.readiness-score,.readiness-list{padding:28px 30px}.course-overview-fields{grid-template-columns:minmax(260px,.7fr) minmax(0,1.3fr);gap:18px;display:grid}.course-overview-edit{border:1px solid var(--line);background:#fff;border-radius:14px;overflow:hidden}.course-overview-edit>summary{cursor:pointer;justify-content:space-between;align-items:center;gap:20px;padding:18px 20px;list-style:none;display:flex}.course-overview-edit>summary::-webkit-details-marker{display:none}.course-overview-edit>summary span{gap:4px;min-width:0;display:grid}.course-overview-edit>summary small{color:var(--muted)}.course-overview-edit>summary strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.course-overview-edit>summary em{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-style:normal;overflow:hidden}.course-overview-edit>summary b{color:var(--blue);flex:none;font-size:14px}.course-overview-edit[open]>summary{border-bottom:1px solid var(--line)}.course-overview-edit .course-overview-fields{padding:18px 20px 20px}.outline-summary{border:1px solid var(--line);background:var(--soft);border-radius:10px;grid-template-columns:auto minmax(0,1fr) auto minmax(0,.5fr);align-items:center;gap:10px 16px;margin:24px 0 18px;padding:16px 18px;display:grid}.outline-summary span{color:var(--muted);font-size:12px}.outline-overview-entry{background:var(--soft);width:100%;min-height:62px;color:var(--navy);text-align:left;cursor:pointer;border:1px solid #a9c5f4;border-radius:11px;grid-template-columns:72px minmax(0,1fr) auto;align-items:center;gap:12px;margin:0 0 10px;padding:11px 18px;display:grid}.outline-overview-entry:hover,.outline-overview-entry:focus-visible{border-color:var(--blue);background:#e5efff}.outline-overview-entry span{color:var(--blue);font-size:12px;font-weight:850}.outline-overview-entry strong{font-size:15px}.outline-overview-entry small{color:var(--muted);font-size:11px}.outline-list{flex-direction:column;gap:10px;margin-bottom:16px;display:flex}.outline-add-actions{align-items:flex-start;gap:12px;display:flex}.outline-add-actions>button{flex:none}.outline-batch-add{border:1px solid var(--line);background:#fff;border-radius:10px;flex:420px}.outline-batch-add summary{min-height:44px;color:var(--blue);cursor:pointer;padding:11px 14px;font-weight:800}.outline-batch-add>div{gap:12px;padding:0 14px 14px;display:grid}.outline-batch-add .field-error{color:var(--danger);margin:0;font-size:12px;font-weight:700}.outline-batch-add .button{justify-self:start}.outline-row{border:1px solid var(--line);background:#fff;border-radius:11px;grid-template-columns:minmax(0,1fr) auto;align-items:stretch;display:grid;overflow:hidden}.outline-row-main{cursor:pointer;grid-template-columns:46px minmax(0,1fr) auto;align-items:center;gap:14px;min-width:0;padding:15px 18px;display:grid}.outline-row-main:hover{background:#f8fbff}.outline-open{cursor:pointer;background:0 0;border:0;border-radius:9px;place-items:center;width:42px;height:42px;padding:0;display:grid}.outline-open:focus-visible{outline-offset:2px;outline:3px solid #9dbcf5}.outline-row-main .lesson-state{pointer-events:none}.outline-index{background:var(--soft);width:42px;height:42px;color:var(--blue);border-radius:9px;place-items:center;font-weight:850;display:grid}.classroom-resource-list{gap:12px;min-width:0;margin:12px 0;display:grid}.classroom-resource-list>section{border:1px solid var(--line);overflow-wrap:anywhere;background:#fff;border-radius:10px;gap:8px;min-width:0;padding:12px;display:grid}.classroom-resource-list>section>div{gap:3px;display:grid}.classroom-resource-kind{color:var(--blue);letter-spacing:.08em;font-size:11px;font-weight:800}.classroom-web-resource{background:#f5f9ff!important;border-color:#a9c5f4!important;padding:16px!important}.classroom-web-resource small{color:var(--muted);line-height:1.6}.classroom-resource-list .button{justify-self:start;max-width:100%}.classroom-guest-access{border:1px solid var(--line-strong);background:var(--soft);cursor:pointer;border-radius:12px;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:12px;padding:16px;display:grid}.classroom-guest-access input{width:22px;height:22px;accent-color:var(--blue);margin:1px 0 0;padding:0}.classroom-guest-access span{gap:4px;display:grid}.classroom-guest-access small{color:var(--muted);font-weight:500;line-height:1.55}.classroom-start-shell{background:radial-gradient(circle at 50% 0%, #eaf2ff 0, transparent 38%), var(--wash);place-items:center;min-height:calc(100vh - 68px);padding:clamp(28px,6vh,72px) 24px;display:grid}.classroom-start-card{border-color:#dfe6f0;border-radius:20px;width:min(820px,100%);overflow:hidden;box-shadow:0 24px 70px #081b3a1a}.classroom-start-heading{border-bottom:1px solid #e7ebf1;grid-template-columns:52px minmax(0,1fr) auto;align-items:center;gap:18px;padding:30px 32px 26px;display:grid}.classroom-start-heading .eyebrow{letter-spacing:.1em;margin-bottom:5px;font-size:11px}.classroom-start-heading h1{letter-spacing:-.035em;margin:0 0 7px;font-size:clamp(28px,4vw,38px);line-height:1.15}.classroom-start-heading p:last-child{max-width:540px;color:var(--muted);margin:0;font-size:14px;line-height:1.6}.classroom-start-mark{background:var(--blue);color:#fff;border-radius:16px;place-items:center;width:52px;height:52px;font-size:17px;display:grid;box-shadow:0 10px 24px #2563eb38}.classroom-start-status{color:#14745d;white-space:nowrap;background:#edf8f4;border-radius:999px;align-self:start;padding:7px 10px;font-size:12px;font-weight:750}.classroom-start-form{gap:22px;padding:28px 32px 32px;display:grid}.classroom-start-facts{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.classroom-start-facts>div{background:#f7f9fc;border-radius:12px;grid-template-columns:28px minmax(0,1fr);align-items:start;gap:10px;padding:14px;display:grid}.classroom-start-facts>div>strong{width:28px;height:28px;color:var(--blue);background:#e8efff;border-radius:50%;place-items:center;font-size:12px;display:grid}.classroom-start-facts span{gap:3px;display:grid}.classroom-start-facts b{color:var(--heading);font-size:13px}.classroom-start-facts small{color:var(--muted);font-size:12px;font-weight:500;line-height:1.45}.classroom-start-form .classroom-guest-access{background:#f4f8ff;border-color:#ccd9ee;align-items:center;padding:18px 20px}.classroom-start-form .classroom-guest-access input{appearance:none;cursor:pointer;background:#dce3ec;border:1px solid #b7c4d6;border-radius:999px;width:44px;height:26px;margin:0;transition:background-color .16s,border-color .16s;position:relative}.classroom-start-form .classroom-guest-access input:after{content:"";background:#fff;border-radius:50%;width:18px;height:18px;transition:transform .16s;position:absolute;top:3px;left:3px;box-shadow:0 1px 4px #26364a38}.classroom-start-form .classroom-guest-access input:checked{border-color:var(--blue);background:var(--blue)}.classroom-start-form .classroom-guest-access input:checked:after{transform:translate(18px)}.classroom-start-form .classroom-guest-access strong{color:var(--heading);font-size:15px}.classroom-start-actions{justify-content:flex-end;align-items:center;gap:10px;padding-top:2px;display:flex}.classroom-start-actions .primary-button{min-width:220px}.classroom-active-session{background:#f0faf7;border:1px solid #b9ddd4;border-radius:14px;justify-content:space-between;align-items:center;gap:20px;margin:28px 32px;padding:20px;display:flex}.classroom-active-session p{color:var(--muted);margin:5px 0 0;font-size:13px}.classroom-session-history{border-top:1px solid #e7ebf1;margin:0 32px 28px}.classroom-session-history summary{color:var(--muted);cursor:pointer;padding:18px 0 8px;font-size:13px;font-weight:700}.classroom-session-history ul{gap:8px;margin:8px 0 0;padding:0;list-style:none;display:grid}.classroom-session-history li a{background:#f7f9fc;border-radius:9px;padding:10px 12px;font-size:13px;display:block}.classroom-start-back{min-height:44px;color:var(--muted);align-items:center;margin:0 32px 28px;font-size:14px;font-weight:700;display:inline-flex}.classroom-start-back:hover{color:var(--blue)}.classroom-readonly-interaction{background:#f7faff;border:1px solid #a9c5f4;border-radius:12px;width:100%;padding:18px}.classroom-readonly-interaction>:last-child{margin-bottom:0}.classroom-interaction-prompt{color:var(--navy);font-size:1.08rem;font-weight:700;line-height:1.6}.classroom-related-slide{width:100%}.classroom-related-slide-label{color:var(--muted);margin:14px 0 8px;font-size:12px;font-weight:750}.learner-question-prompt{color:var(--navy);white-space:pre-wrap;margin:4px 0 8px;font-size:clamp(1.35rem,5vw,2rem);line-height:1.45}.learner-answer-panel{align-content:start;min-height:calc(100dvh - 76px)}.outline-title-control{align-items:center;gap:8px;min-width:0;display:flex}.outline-title-button{min-width:0;min-height:42px;color:var(--navy);text-align:left;cursor:pointer;pointer-events:auto;background:0 0;border:0;flex:1;justify-content:space-between;align-items:center;gap:12px;padding:8px 2px;display:flex}.outline-title-button strong{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.outline-title-button:after{content:"进入编辑 →";color:var(--blue);opacity:.58;flex:none;font-size:12px;font-weight:700}.outline-title-button:hover:after,.outline-title-button:focus-visible:after{opacity:1}.outline-rename-button{min-height:42px;color:var(--blue);font:inherit;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:8px;flex:none;padding:0 8px;font-size:12px}.outline-rename-button:hover,.outline-rename-button:focus-visible{background:#fff;border-color:#a9c5f4}.outline-title-input{border:1px solid var(--blue);width:100%;min-height:42px;color:var(--navy);font:inherit;pointer-events:auto;background:#fff;border-radius:8px;padding:8px 10px;font-weight:800}.outline-row-actions,.component-row-actions,.inline-actions,.component-add-buttons{align-items:center;gap:6px;display:flex}.outline-row-actions{border-left:1px solid var(--line);padding:0 12px}.outline-row-actions button,.component-row-actions button,.inline-actions button,.component-add-buttons button,.readiness-row button{border:1px solid var(--line);min-width:42px;min-height:42px;color:var(--navy-2);cursor:pointer;background:#fff;border-radius:8px;padding:0 10px}.outline-row-actions button:disabled,.component-row-actions button:disabled,.inline-actions button:disabled{opacity:.35;cursor:not-allowed}.danger{color:var(--danger)!important}.lesson-state{border-radius:999px;flex:none;padding:6px 9px;font-size:11px;font-style:normal;font-weight:800}.lesson-state.ready{color:var(--success);background:#e7f5f2}.lesson-state.needs_confirmation{color:#9a6200;background:#fff6df}.lesson-state.incomplete{color:var(--muted);background:#f0f2f5}.lesson-switcher{grid-template-columns:1fr 1.25fr 1fr;gap:10px;display:grid}.lesson-switcher>button,.lesson-switcher>div{border:1px solid var(--line);min-width:0;min-height:82px;color:var(--muted);background:#fff;border-radius:12px;flex-direction:column;justify-content:center;padding:14px 18px;display:flex}.lesson-switcher>div{border-color:var(--blue);background:var(--blue);color:#fff;text-align:center}.lesson-switcher>button{cursor:pointer}.lesson-switcher>button:last-child{text-align:right}.lesson-switcher span{margin-bottom:5px;font-size:11px}.lesson-switcher strong{color:inherit;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.lesson-switcher button:disabled{opacity:.55;cursor:not-allowed}.lesson-authoring-mode{justify-content:space-between;align-items:center;gap:24px;padding:22px 26px;display:flex}.lesson-authoring-mode h3{margin:3px 0 4px}.lesson-authoring-mode p{color:var(--muted);margin:0}.authoring-mode-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;min-width:430px;display:grid}.authoring-mode-options button{border:1px solid var(--line);min-height:68px;color:var(--ink);text-align:left;cursor:pointer;background:#fff;border-radius:12px;flex-direction:column;justify-content:center;padding:10px 16px;display:flex}.authoring-mode-options button.active{border-color:var(--blue);background:var(--soft-blue);color:var(--blue);box-shadow:inset 3px 0 0 var(--blue)}.authoring-mode-options span{color:var(--muted);margin-top:3px;font-size:12px}.presentation-authoring{padding:26px}.presentation-feedback{margin:0 0 18px}.presentation-empty-state{grid-template-columns:minmax(0,1fr);align-items:start;gap:20px;display:grid}.presentation-empty-state>*{min-width:0}.presentation-empty-state h3{margin:6px 0 8px;font-size:24px}.presentation-empty-state p{color:var(--muted);line-height:1.65}.presentation-upload-form{border:1px solid var(--line);background:var(--soft-blue);border-radius:14px;gap:16px;min-width:0;padding:18px;display:grid;container:presentation-upload/inline-size}.presentation-upload-form>*{min-width:0}.presentation-upload-form label{gap:8px;min-width:0;font-weight:700;display:grid}.presentation-upload-form input[type=file]{border:1px solid var(--line);background:#fff;border-radius:9px;width:100%;min-width:0;max-width:100%;padding:10px}.presentation-upload-form>p{overflow-wrap:anywhere;margin:0}.presentation-selected-file{overflow-wrap:anywhere;font-size:13px;font-weight:400}.presentation-upload-actions{flex-wrap:wrap;gap:10px;display:flex}.presentation-upload-actions:empty{display:none}.presentation-upload-actions .button{white-space:normal;overflow-wrap:anywhere;max-width:100%;min-height:44px}.presentation-upload-form .presentation-submit-button:disabled{opacity:1;color:#8792a2;box-shadow:none;background:#edf0f4;border-color:#dce2ea}.presentation-conversion-progress{border:1px solid var(--line);background:#fff;border-radius:12px;gap:7px;padding:14px;display:grid}.presentation-conversion-progress span{color:var(--muted);font-size:13px}.presentation-conversion-progress progress{width:100%;height:10px;accent-color:var(--blue)}.presentation-stage-track{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.presentation-stage-track i{background:#e5e9ef;border-radius:99px;height:6px}.presentation-stage-track i.done{background:#72c7b5}.presentation-stage-track i.active{background:var(--blue);animation:1.4s ease-in-out infinite presentation-stage-pulse}@keyframes presentation-stage-pulse{50%{opacity:.45}}.presentation-runtime-log{background:#f8fafc;border:1px solid #d7e0ed;border-radius:14px;overflow:hidden}.presentation-runtime-log>summary{cursor:pointer;color:var(--ink);grid-template-columns:auto minmax(0,1fr) auto auto;align-items:center;gap:10px;padding:13px 15px;list-style:none;display:grid}.presentation-runtime-log>summary:after{content:"";border-bottom:2px solid;border-right:2px solid;width:7px;height:7px;transform:rotate(45deg)}.presentation-runtime-log[open]>summary:after{transform:rotate(225deg)}.presentation-runtime-log>summary:focus-visible{outline:2px solid var(--blue);outline-offset:-3px}.presentation-runtime-log>summary::-webkit-details-marker{display:none}.presentation-runtime-log>summary>span{color:#71a1ff;background:#0b1d38;border-radius:10px;place-items:center;width:34px;height:34px;font:700 14px/1 ui-monospace,SFMono-Regular,Menlo,monospace;display:grid}.presentation-runtime-log>summary small{color:var(--muted);justify-self:end}.presentation-runtime-log-panel{color:#cbd8ea;background:#08182d;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}.presentation-runtime-log-panel header{border-bottom:1px solid #253b58;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:18px;display:flex}.presentation-runtime-log-panel header div{flex:260px;gap:4px;min-width:0;display:grid}.presentation-runtime-log-panel header strong{color:#f4f8ff;font:700 16px/1.3 ui-sans-serif,system-ui,sans-serif}.presentation-runtime-log-panel header small{color:#8da2bd;font:12px/1.5 ui-sans-serif,system-ui,sans-serif}.presentation-runtime-log-panel button{color:#eaf2ff;cursor:pointer;background:#102642;border:1px solid #496589;border-radius:9px;flex:none;padding:9px 12px;font:700 12px/1 ui-sans-serif,system-ui,sans-serif}.presentation-runtime-log-meta{color:#8096b2;border-bottom:1px solid #253b58;padding:10px 18px;font-size:12px}.presentation-runtime-log-panel ol{max-height:360px;margin:0;padding:0;list-style:none;overflow-y:auto}.presentation-runtime-log-panel li{border-bottom:1px solid #132943;grid-template-columns:max-content 44px minmax(0,1fr);gap:12px;padding:12px 18px;font-size:13px;line-height:1.6;display:grid}.presentation-runtime-log-panel li>*{overflow-wrap:anywhere;min-width:0}.presentation-runtime-log-panel li time{color:#9bafc9}.presentation-runtime-log-panel li b{color:#9cb0c9}.presentation-runtime-log-panel li.runtime-ok b,.presentation-runtime-log-panel li.runtime-ok span{color:#55dbb2}.presentation-runtime-log-panel li.runtime-warn b,.presentation-runtime-log-panel li.runtime-warn span{color:#ffca66}@container presentation-upload (max-width:560px){.presentation-upload-actions .button{flex:180px}.presentation-runtime-log>summary{grid-template-columns:auto minmax(0,1fr) auto}.presentation-runtime-log>summary small{grid-area:2/2;justify-self:start}.presentation-runtime-log>summary:after{grid-area:1/3}.presentation-runtime-log-panel header{padding:14px}.presentation-runtime-log-panel header div{flex-basis:100%}.presentation-runtime-log-panel li{grid-template-columns:max-content minmax(0,1fr);gap:4px 12px;padding:12px 14px}.presentation-runtime-log-panel li>span{grid-column:1/-1}}.presentation-empty-state>.success-box,.presentation-empty-state>.error-box{grid-column:1/-1;margin:0}.presentation-workspace{grid-template-columns:250px minmax(0,1fr);gap:18px;min-height:560px;display:grid}.presentation-page-rail{flex-direction:column;gap:8px;max-height:660px;padding-right:5px;display:flex;overflow-y:auto}.presentation-page-rail>div{justify-content:space-between;gap:8px;padding:2px 4px 10px;display:flex}.presentation-page-rail>button{border:1px solid var(--line);color:var(--ink);text-align:left;cursor:pointer;background:#fff;border-radius:10px;grid-template-columns:34px minmax(0,1fr);gap:8px;padding:12px;display:grid}.presentation-page-rail>button.active{border-color:var(--blue);background:var(--soft-blue)}.presentation-page-rail>button span{color:var(--blue);font-weight:800}.presentation-page-rail>button strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.presentation-page-rail>button small{color:var(--blue);grid-column:2}.presentation-page-stage{min-width:0}.page-activity-picker{background:linear-gradient(#fff 0%,#f8fbff 100%);border:1px solid #cfd9e8;border-radius:16px;margin-bottom:16px;padding:16px}.page-activity-picker p,.page-activity-move p{color:var(--muted);font-size:14px}.tool-picker-heading{justify-content:space-between;align-items:center;gap:16px;display:flex}.tool-picker-heading>div{gap:3px;display:grid}.tool-picker-heading>div>strong{font-size:17px}.tool-picker-heading>div>span{color:var(--muted);font-size:13px}.tool-picker-shortcuts{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:14px;display:grid}.tool-picker-shortcuts button{color:#174ea6;cursor:pointer;background:#fff;border:1px solid #b9cdf0;border-radius:10px;justify-content:center;align-items:center;gap:8px;min-height:48px;padding:9px 12px;display:flex}.tool-picker-shortcuts button:hover:not(:disabled){border-color:var(--blue);background:#eef5ff}.tool-picker-shortcuts button>span{background:#e9f1ff;border-radius:8px;place-items:center;width:26px;height:26px;font-size:12px;font-weight:800;display:grid}.tool-picker-shortcuts button:disabled{cursor:not-allowed;opacity:.55}.page-activity-options{grid-template-columns:repeat(auto-fit,minmax(min(100%,210px),1fr));gap:10px;margin-top:12px;display:grid}.page-activity-options button{border:1px solid var(--line);color:var(--ink);text-align:left;cursor:pointer;background:#fff;border-radius:10px;flex-direction:column;gap:6px;padding:14px;display:flex}.page-activity-options button:hover:not(:disabled){border-color:var(--primary,#245ff0);background:#f0f6ff}.page-activity-options button:disabled{cursor:not-allowed;color:var(--muted);background:#f2f4f7}.page-activity-options small{font-weight:400;line-height:1.5}.page-activity-options .page-activity-section-heading{flex-direction:column;grid-column:1/-1;gap:4px;margin:6px 0 0;display:flex}.page-activity-options .page-activity-cancel{justify-content:center}.tool-picker-placement{background:#eef3fa;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;margin-top:14px;padding:10px 12px;display:flex}.tool-picker-placement>div{gap:6px;display:flex}.tool-picker-placement button{min-width:86px;color:var(--ink);cursor:pointer;background:#fff;border:1px solid #c2cede;border-radius:8px;padding:8px 12px}.tool-picker-placement button.active{border-color:var(--blue);background:var(--blue);color:#fff}.page-activity-options .tool-picker-card{grid-template-columns:38px minmax(0,1fr);align-items:start;display:grid}.tool-picker-card>span:last-child{gap:5px;display:grid}.tool-picker-icon{color:#174ea6;background:#e9f1ff;border-radius:10px;place-items:center;width:34px;height:34px;font-size:12px;font-weight:850;display:grid}.tool-picker-card em{color:#54657a;background:#eef3fa;border-radius:999px;width:fit-content;padding:3px 7px;font-size:11px;font-style:normal}.page-activity-move{margin-bottom:14px}.page-activity-move summary{cursor:pointer;color:var(--muted);padding:10px 0}.page-activity-location{color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:10px;margin-bottom:16px;display:flex}.task-editor-card{scroll-margin-top:110px}.presentation-page-frame{aspect-ratio:16/9;border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;display:block;position:relative;overflow:hidden}.presentation-page-frame.presentation-page-frame>iframe{transform-origin:0 0;border:0;border-radius:0;width:960px;max-width:none;height:540px;position:absolute;inset:0;min-height:0!important}.presentation-page-native-canvas{background:#fff;position:absolute;inset:0;overflow:hidden}.presentation-page-native-canvas>*{margin:0!important}.presentation-page-native .presentation-page-load-state{background:#f8fafc}.presentation-page-load-state{z-index:1;color:var(--muted);text-align:center;justify-content:center;align-items:center;gap:8px;padding:20px;display:flex;position:absolute;inset:0}.presentation-page-load-state.is-error{background:#f8fafc;flex-direction:column}.presentation-page-load-state strong{color:var(--ink);font-size:18px}.presentation-page-load-state button{border:1px solid var(--blue);color:var(--blue);cursor:pointer;background:#fff;border-radius:9px;margin-top:4px;padding:9px 14px;font-weight:700}.presentation-page-reload{z-index:2;width:38px;height:38px;color:var(--blue);cursor:pointer;background:#ffffffe0;border:1px solid #b9cdf0;border-radius:50%;place-items:center;padding:0;font-size:22px;display:grid;position:absolute;top:8px;right:8px;box-shadow:0 2px 8px #081b3a1f}.presentation-page-recovery-hint{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.presentation-page-thumbnail{pointer-events:none;grid-column:1/-1}.preview-slide-card h1{overflow-wrap:anywhere;font-size:clamp(1.125rem,2.5vw,1.75rem);line-height:1.4}.presentation-replacement-preview{border:1px solid var(--blue);border-radius:12px;gap:16px;margin-top:18px;padding:18px;display:grid}.presentation-replacement-list{gap:8px;max-height:320px;display:grid;overflow:auto}.presentation-replacement-list li{overflow-wrap:anywhere}.presentation-stage-toolbar{justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;display:flex}.presentation-page-stage iframe,.presentation-text-preview{border:1px solid var(--line);background:#fff;border-radius:12px;width:100%;min-height:470px}.presentation-text-preview{box-sizing:border-box;flex-direction:column;justify-content:center;padding:46px;display:flex}.presentation-text-preview strong{font-size:28px}.presentation-text-preview p{color:var(--muted);line-height:1.7}.presentation-text-preview small{color:var(--muted);margin-top:24px}.interaction-submission-form{gap:14px;margin-top:16px;display:grid}.interaction-submission-form label{gap:8px;font-weight:700;display:grid}.interaction-submission-form input,.interaction-submission-form textarea{width:100%}.interaction-collection-note{color:#38506f;background:#eef6ff;border-radius:12px;margin:0;padding:12px 14px;font-size:14px}.external-resource-adder{border:1px solid var(--line);border-radius:12px;margin-top:14px;padding:14px}.external-resource-adder>summary{cursor:pointer;font-weight:800}.external-resource-adder>div{margin-top:14px}.external-resource-adder .full-field{grid-column:1/-1}.h5-binding-editor{border:1px solid var(--line);border-radius:14px;margin-top:16px;overflow:hidden}.h5-binding-editor>summary{cursor:pointer;background:#f5f8fd;justify-content:space-between;gap:12px;padding:15px;display:flex}.h5-binding-editor>summary span{color:var(--muted);font-size:13px}.h5-binding-form,.h5-binding-preview{gap:14px;padding:16px;display:grid}.h5-binding-form label{gap:8px;font-weight:700;display:grid}.h5-binding-form label small{color:var(--muted);font-weight:400}.h5-privacy-preview{background:#eef6ff;border-radius:10px;gap:5px;padding:12px;display:grid}.h5-binding-form .confirmation-check{grid-template-columns:auto 1fr;align-items:flex-start;display:flex}.h5-binding-form .confirmation-check input{width:auto;margin-top:3px}.h5-binding-preview iframe{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;min-height:420px}.h5-binding-preview dl{gap:10px;margin:0;display:grid}.h5-binding-preview dl div{grid-template-columns:100px 1fr;gap:12px;display:grid}.h5-binding-preview dt{color:var(--muted)}.h5-learner-runtime{gap:12px;display:grid}.h5-learner-runtime iframe{border:1px solid var(--line);background:#fff;border-radius:12px;width:100%;min-height:520px}.interaction-dashboard{margin-top:24px}.interaction-dashboard>.editor-card-heading>strong{color:var(--blue);white-space:nowrap;font-size:22px}.interaction-dashboard-list{gap:14px;margin-top:20px;display:grid}.interaction-dashboard-list>article{border:1px solid var(--line);background:#fff;border-radius:14px;padding:18px}.interaction-dashboard-list header{justify-content:space-between;align-items:start;gap:18px;display:flex}.interaction-dashboard-list header h3{margin:0 0 5px;font-size:17px}.interaction-dashboard-list header span,.interaction-dashboard-list>article>small{color:var(--muted);font-size:13px}.interaction-dashboard-list header>strong{color:var(--blue);font-size:28px}.interaction-completion-track{background:var(--soft);border-radius:999px;height:9px;margin:14px 0;overflow:hidden}.interaction-completion-track>span{border-radius:inherit;background:var(--blue);height:100%;display:block}.interaction-dashboard-list dl{grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:8px;margin:0 0 12px;display:grid}.interaction-dashboard-list dl div{background:var(--soft);border-radius:10px;padding:10px 12px}.interaction-dashboard-list dt{color:var(--muted);font-size:12px}.interaction-dashboard-list dd{margin:4px 0 0;font-weight:700}.interaction-text-samples{color:var(--ink);margin:8px 0 0;padding-left:18px}.interaction-text-samples li{overflow-wrap:anywhere;margin-top:4px}.async-video-resource video{background:#071a35;border-radius:12px;width:100%;max-height:70vh;display:block}.learner-deck-timeline{border:1px solid var(--line);background:#fff;border-radius:18px;gap:14px;padding:22px;display:grid}.learner-deck-heading{grid-template-columns:1fr auto;align-items:end;gap:2px 16px;display:grid}.learner-deck-heading .eyebrow{grid-column:1/-1;margin:0}.learner-deck-heading h2{margin:0}.learner-deck-heading>span{color:var(--muted)}.learner-deck-step{gap:8px;display:grid}.learner-deck-step>article{background:#f5f8fd;border-radius:14px;padding:18px}.learner-deck-step>article>span{color:var(--blue);font-size:12px;font-weight:800}.learner-deck-step>article h3{margin:6px 0 10px}.learner-deck-step>article p{white-space:pre-wrap;margin:0;line-height:1.7}.learner-deck-step>a{color:var(--navy);background:#f3f7ff;border:1px solid #bdd2f7;border-radius:12px;gap:3px;padding:12px 14px;text-decoration:none;display:grid}.learner-deck-step>a.current{border-color:var(--blue);box-shadow:0 0 0 2px #2767e81f}.learner-deck-step>a span{color:var(--blue);font-size:12px;font-weight:800}.presentation-page-activities{align-items:center;gap:9px;margin-top:12px;display:flex;overflow-x:auto}.presentation-page-activities span{color:var(--muted)}.presentation-page-activities button{border:1px solid var(--line);color:var(--ink);cursor:pointer;white-space:nowrap;background:#fff;border-radius:999px;padding:8px 12px}.task-rail{scrollbar-width:thin;scroll-snap-type:x proximity;gap:8px;padding:4px 0 8px;display:flex;overflow-x:auto}.task-rail button{scroll-snap-align:start;border:1px solid var(--line);min-width:190px;min-height:68px;color:var(--muted);text-align:left;cursor:pointer;background:#fff;border-radius:10px;flex-direction:column;flex:none;justify-content:center;padding:12px 15px;display:flex}.task-rail button.active{border-color:var(--blue);background:var(--soft);color:var(--blue)}.task-rail button.add{border-style:dashed;align-items:center;min-width:130px}.task-rail span{margin-bottom:4px;font-size:11px}.task-rail strong{color:inherit;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.lesson-editor{flex-direction:column;gap:18px;display:flex}.lesson-editor-heading{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.lesson-editor-heading h3,.component-editor-card h3,.course-resource-uploader h3,.course-resource-library h3{margin-bottom:0;font-size:23px}.three-columns{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.readiness-note{background:#fffaf0;border-left:4px solid #d79a2b;padding:16px 18px}.readiness-note ul{color:var(--muted);gap:6px;margin:8px 0 0;padding:0;font-size:13px;line-height:1.5;list-style:none;display:grid}.readiness-note li{justify-content:space-between;align-items:center;gap:16px;display:flex}.readiness-note li button{color:var(--blue);font:inherit;cursor:pointer;background:0 0;border:0;flex:none;font-weight:700}.readiness-note li button:hover,.readiness-note li button:focus-visible{text-decoration:underline}.lesson-confirm-row{background:#f1faf6;border:1px solid #b9dccf;border-radius:11px;justify-content:space-between;align-items:center;gap:24px;padding:18px;display:flex}.lesson-confirm-row>div{flex-direction:column;gap:5px;display:flex}.lesson-confirm-row span{color:var(--muted);font-size:12px}.task-workspace{flex-direction:column;gap:16px;display:flex}.task-editor-card{flex-direction:column;gap:18px;display:flex}.optional-settings,.component-attachment-settings{border:1px solid var(--line);background:#fff;border-radius:10px;overflow:hidden}.optional-settings>summary,.component-attachment-settings>summary{min-height:54px;color:var(--navy);cursor:pointer;justify-content:space-between;align-items:center;gap:18px;padding:13px 16px;list-style:none;display:flex;position:relative}.optional-settings>summary::-webkit-details-marker{display:none}.component-attachment-settings>summary::-webkit-details-marker{display:none}.optional-settings>summary:after,.component-attachment-settings>summary:after{content:"+";color:var(--blue);flex:none;font-size:20px;line-height:1}.optional-settings[open]>summary:after,.component-attachment-settings[open]>summary:after{content:"−"}.optional-settings>summary span,.component-attachment-settings>summary span{color:var(--muted);margin-left:auto;font-size:12px;font-weight:600}.optional-settings[open]>summary,.component-attachment-settings[open]>summary{border-bottom:1px solid var(--line)}.optional-settings-body{padding:16px}.lesson-optional-settings .optional-settings-body{max-width:360px}.component-editor-card .editor-card-heading{align-items:center}.component-add-buttons{flex-wrap:wrap;justify-content:flex-end}.component-list{flex-direction:column;gap:8px;display:flex}.component-row{border:1px solid var(--line);border-radius:10px;grid-template-columns:minmax(0,1fr) auto;display:grid;overflow:hidden}.component-row.selected{border-color:var(--blue);background:#f7faff}.component-open{text-align:left;cursor:pointer;background:0 0;border:0;grid-template-columns:100px minmax(0,1fr) 90px;align-items:center;gap:12px;min-width:0;padding:14px 16px;display:grid}.component-open span,.component-open small{color:var(--muted);font-size:12px}.component-open strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.component-row-actions{border-left:1px solid var(--line);padding:8px 10px}.component-detail{border:1px solid var(--line);background:#fbfdff;border-radius:11px;flex-direction:column;gap:16px;margin-top:18px;padding:22px;display:flex}.component-effective-type{border-left:4px solid var(--blue);background:var(--soft);justify-content:space-between;align-items:flex-start;gap:18px;padding:13px 15px;display:flex}.component-effective-type>div{flex-direction:column;gap:3px;min-width:0;display:flex}.component-effective-type span{color:var(--muted);font-size:11px}.component-effective-type strong{color:var(--blue)}.component-effective-type small{color:var(--muted)}.component-type-change{flex:none}.component-type-change summary{color:var(--blue);cursor:pointer;font-size:12px;font-weight:800}.component-type-change>div{gap:6px;margin-top:8px;display:flex}.component-type-change button{border:1px solid var(--line-strong);min-height:36px;color:var(--navy-2);cursor:pointer;background:#fff;border-radius:7px;padding:0 9px}.component-type-change p{max-width:280px;color:var(--muted);margin:8px 0 0;font-size:11px;line-height:1.45}.tool-library-note{border:1px solid var(--line);color:var(--muted);border-radius:9px;margin-bottom:0;padding:14px 16px;font-size:12px;line-height:1.6}.component-attachment-body{flex-direction:column;gap:14px;padding:16px;display:flex}.component-resource-placements{border:1px solid var(--line);border-radius:9px;overflow:hidden}.component-resource-placements>div{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:14px;min-height:56px;display:flex}.component-resource-placements>div:last-child{border-bottom:0}.component-resource-placements>div{padding:0 12px}.component-resource-placements>div>span{align-items:center;gap:8px;display:flex}.component-resource-placements strong,.component-resource-placements small{display:block}.component-resource-placements small{color:var(--muted);font-size:11px}.component-resource-placements button{min-height:40px;color:var(--blue);cursor:pointer;background:0 0;border:0;padding:0 9px;font-size:12px;font-weight:750}.component-resource-placements button:disabled{color:var(--muted);cursor:not-allowed}.compact-resource-uploader{border-top:1px solid var(--line);padding:14px 0 0}.compact-upload-heading{justify-content:space-between;align-items:center;gap:16px;margin-bottom:10px;display:flex}.compact-upload-heading span{color:var(--muted);font-size:11px}.compact-upload-row{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:10px;display:grid}.compact-upload-row .button{min-height:48px}.attachment-metadata-settings{margin-top:10px}.attachment-metadata-settings>summary,.course-resource-library>summary{color:var(--blue);cursor:pointer;font-size:12px;font-weight:750}.attachment-metadata-settings .optional-settings-body{padding:12px 0 0}.course-resource-library{padding-top:4px}.course-resource-library>summary{margin-bottom:10px}.course-resource-library form{display:inline-flex}.publish-readiness-grid{grid-template-columns:minmax(260px,.45fr) minmax(0,1fr);align-items:start;gap:16px;display:grid}.readiness-score{flex-direction:column;align-items:flex-start;display:flex}.readiness-score>strong{color:var(--blue);font-size:52px;line-height:1}.readiness-score>span{color:var(--navy);margin:8px 0 18px;font-weight:800}.readiness-score p{color:var(--muted);margin-bottom:0;line-height:1.7}.readiness-list h3{margin-bottom:14px}.readiness-row{border-top:1px solid var(--line);grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:12px;min-height:74px;display:grid}.readiness-row>span{width:30px;height:30px;color:var(--danger);background:#fff1ec;border-radius:50%;place-items:center;font-weight:850;display:grid}.readiness-row.ready>span{color:var(--success);background:#e7f5f2}.readiness-row strong,.readiness-row small{display:block}.readiness-row small{color:var(--muted);margin-top:5px}.course-save-form{display:block}.teacher-workbench{min-width:0;margin-top:16px}.workbench-toolbar{z-index:24;border:1px solid var(--line);background:#fff;border-radius:12px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;padding:12px;display:flex;position:sticky;top:72px;box-shadow:0 4px 16px #081b3a12}.workbench-pagination,.workbench-save-controls{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.teacher-workbench .workbench-pagination label{white-space:nowrap;flex-direction:row;align-items:center;gap:6px;margin:0;display:flex}.workbench-pagination select{width:65px;padding:8px}.workbench-save-controls>span{color:var(--muted);font-size:12px}.workbench-toolbar button:not(.button),.workbench-quick-add button,.workbench-activity-editor button{border:1px solid var(--line);min-height:40px;color:var(--ink);cursor:pointer;background:#fff;border-radius:8px;padding:8px 12px}.teacher-workbench button:disabled{cursor:not-allowed;opacity:.55}.teacher-workbench button:focus-visible,.teacher-workbench select:focus-visible{outline:2px solid var(--blue);outline-offset:3px}.workbench-grid{grid-template-columns:200px minmax(0,1fr);align-items:start}.workbench-rail{scroll-behavior:auto;max-height:calc(100dvh - 180px);position:sticky;top:154px}.workbench-rail header{gap:10px;padding:4px;display:grid}.workbench-rail header>strong{overflow-wrap:anywhere}.workbench-rail header label{margin:0;font-size:12px}.workbench-rail header input[type=search]{width:100%;padding:8px}.teacher-workbench .workbench-filter{flex-direction:row;align-items:center;gap:6px;display:flex}.workbench-filter input{width:auto}.workbench-directory-toggle{display:none}.workbench-current-page{min-width:0;scroll-margin-top:170px}.workbench-page-order{color:var(--muted);margin-bottom:10px;font-size:13px}.workbench-page-order summary{cursor:pointer;padding:8px 0}.teacher-workbench .workbench-page-order label{flex-direction:row;align-items:center;gap:8px;margin:8px 12px 8px 0;display:inline-flex}.workbench-page-order select{width:75px;padding:6px}.workbench-quick-add{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px;display:flex}.workbench-quick-add>span{color:var(--muted);font-size:13px}.workbench-quick-add button{color:#174ea6;background:#f5f9ff;border-color:#b9cdf0;font-weight:650}.workbench-more-activities{margin-bottom:8px}.workbench-more-activities>summary{cursor:pointer;color:var(--blue);padding:8px 0;font-size:13px}.workbench-activity-editor{background:#f8fbff;border:1px solid #b9cdf0;border-radius:12px;margin:16px 0;padding:18px;scroll-margin-top:170px}.workbench-activity-editor header,.workbench-activity-editor footer{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.workbench-activity-editor header{margin-bottom:12px}.workbench-activity-editor header strong{overflow-wrap:anywhere}.workbench-activity-editor label{gap:6px;margin:12px 0;font-size:14px;display:grid}.workbench-activity-editor textarea,.workbench-activity-editor input,.workbench-activity-editor select{width:100%;min-width:0}.workbench-activity-editor summary,.workbench-reuse summary{cursor:pointer;padding:10px 0;font-size:14px}.workbench-activity-editor footer{margin-top:12px}.workbench-activity-editor footer span,.workbench-question-preview small{color:var(--muted);font-size:12px}.workbench-answer-key{background:#fff;border:1px solid #d5dfed;border-radius:10px;gap:8px;margin:12px 0;padding:12px;display:grid}.workbench-answer-key legend{padding:0 5px;font-size:14px;font-weight:700}.workbench-answer-key p{color:var(--muted);margin:0 0 3px;font-size:12px}.workbench-answer-key>label{flex-direction:row;align-items:center;gap:8px;margin:0;display:flex}.workbench-answer-key>label:has(textarea){display:grid}.workbench-answer-key input{width:auto}.choice-options-editor{background:#fff;border:1px solid #cbd8ea;border-radius:12px;gap:12px;margin:14px 0;padding:16px;display:grid}.choice-options-editor legend{color:var(--navy);padding:0 6px;font-weight:750}.choice-options-editor>p{color:var(--muted);margin:0;font-size:13px;line-height:1.55}.choice-option-list{gap:10px;display:grid}.choice-option-row{background:#f9fbfe;border:1px solid #e0e7f1;border-radius:10px;grid-template-columns:minmax(94px,auto) minmax(180px,1fr) auto;align-items:end;gap:10px;padding:10px;display:grid}.choice-option-row label{margin:0}.choice-answer-control{min-height:42px;color:var(--muted);cursor:pointer;align-items:center;gap:7px!important;font-size:12px!important;display:flex!important}.choice-answer-control input{width:auto!important}.choice-answer-control:has(input:checked){color:var(--blue);font-weight:700}.choice-option-input{gap:5px;display:grid}.choice-option-input>span{color:var(--muted);font-size:12px}.choice-option-actions{gap:6px;display:flex}.choice-option-actions button{min-width:40px}.choice-option-actions button:last-child{color:#a63724}.choice-option-add{justify-self:start}.choice-answer-details{border-top:1px solid #e0e7f1;gap:10px;padding-top:4px;display:grid}.choice-answer-details label{margin:0}.choice-answer-details .answer-key-clear{justify-self:start}.workbench-added-status{color:#17634a;background:#eaf6f1;border-radius:8px;margin:0 0 12px;padding:9px 11px;font-size:13px}.answer-key-clear{width:fit-content;color:#174ea6!important}.external-tool-choices{flex-wrap:wrap;gap:8px;margin:10px 0 16px;display:flex}.external-tool-choices button{color:#174ea6;cursor:pointer;background:#f5f9ff;border:1px solid #b9cdf0;border-radius:8px;min-height:40px;padding:8px 12px}.h5-setup-steps{counter-reset:h5-step;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:0;list-style:none;display:grid}.h5-setup-steps li{color:#41546d;counter-increment:h5-step;background:#f1f5fa;border-radius:8px;gap:4px;padding:9px;font-size:12px;display:grid}.h5-setup-steps li:before{content:counter(h5-step);color:#174ea6;background:#dce9fb;border-radius:50%;place-items:center;width:22px;height:22px;font-weight:800;display:grid}.workbench-question-preview{border:1px solid var(--line);background:#fff;border-radius:8px;margin-top:10px;padding:0 12px}.workbench-question-preview p,.workbench-question-preview li{white-space:pre-wrap;overflow-wrap:anywhere}.workbench-question-preview ul{padding-left:0;list-style:none}.workbench-reuse{border-top:1px solid var(--line);margin-top:14px;padding-top:6px}.workbench-reuse p{color:var(--muted);font-size:13px}.workbench-reuse>button{text-align:left;border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:8px;gap:5px;width:100%;margin:8px 0;padding:12px;display:grid}.workbench-reuse>button strong{overflow-wrap:anywhere}.workbench-reuse>button small{color:var(--muted)}.workbench-reuse>button span{color:var(--blue);font-size:13px}.course-autosave-control{border:1px solid var(--line);background:#fff;border-radius:12px;gap:8px;padding:14px 18px;display:grid}.course-autosave-control label,.teacher-workbench .workbench-autosave{flex-direction:row;align-items:center;gap:8px;margin:0;font-size:13px;display:flex}.course-autosave-control input,.workbench-autosave input{width:18px;height:18px;accent-color:var(--blue);padding:0}.course-autosave-control small{color:var(--muted);line-height:1.6}.course-autosave-control p{color:#8a4b05;margin:0;font-size:13px}.batch-page-activity{border:1px solid var(--line);background:#f8faff;border-radius:12px;margin-top:14px;padding:0 14px}.batch-page-activity>summary{cursor:pointer;padding:14px 0;font-size:14px}.batch-page-activity>summary span{color:var(--muted);margin-left:12px;font-size:12px}.batch-page-activity-panel{padding-bottom:14px}.batch-page-activity-panel p{font-size:13px;line-height:1.7}.batch-page-activity-fields{border:0;min-width:0;padding:0}.batch-page-activity-legend{padding:6px 0;font-weight:700}.batch-page-activity-settings{grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:12px;display:grid}.batch-page-activity-panel label{font-size:13px}.batch-page-activity-pages{border:1px solid var(--line);background:#fff;border-radius:8px;min-width:0;max-height:270px;padding:8px;overflow-y:auto}.batch-page-activity-pages legend{padding:0 6px;font-size:13px}.teacher-workbench .batch-page-activity-page{cursor:pointer;border-radius:6px;flex-direction:row;align-items:center;gap:10px;margin:0;padding:10px;display:flex}.batch-page-activity-page.selected{background:#eaf0ff}.batch-page-activity-page input{width:18px;height:18px;accent-color:var(--blue);flex:0 0 18px;padding:0}.batch-page-activity-page>span{overflow-wrap:anywhere;flex-wrap:wrap;gap:6px 10px;min-width:0;display:flex}.batch-page-activity-page strong{white-space:nowrap}.batch-page-activity-selection{overflow-wrap:anywhere;flex-wrap:wrap;align-items:center;gap:8px;padding:12px 0;font-size:13px;display:flex}.batch-page-activity-selection small{color:#8a4b05;width:100%}.batch-page-activity-plan{border-left:3px solid var(--blue);background:#fff;padding:10px 12px}.batch-page-activity-plan.over-limit{color:#8e351d;border-color:#b94724}.batch-page-activity-plan strong{display:block}.batch-page-activity-cancel{margin-top:10px}.batch-page-activity-feedback{color:#156d56}.template-options>.button-row{flex-wrap:wrap;align-items:end;gap:8px;display:flex}.template-options label{flex:180px;min-width:0}.template-options button{white-space:nowrap;margin-bottom:16px}.template-review{overflow-wrap:anywhere;margin-top:14px}.template-review p{white-space:pre-wrap}.activity-template-picker textarea{box-sizing:border-box;width:100%}.batch-page-activity button:disabled{opacity:.55;cursor:not-allowed}@media (max-width:600px){.batch-page-activity-settings{grid-template-columns:minmax(0,1fr);gap:0}.batch-page-activity>summary span{margin:6px 0 0;display:block}.batch-page-activity-apply,.batch-page-activity-cancel{width:100%}}.course-inline-ai-trigger{align-self:flex-start;width:auto;margin:0 0 12px}@media (max-width:1100px){.teacher-workbench .workbench-grid{grid-template-columns:minmax(0,1fr)}.workbench-directory-toggle{text-align:left;border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;margin-bottom:12px;padding:12px;display:block}.teacher-workbench .workbench-rail{flex-direction:column;max-height:350px;display:none;position:static;overflow-y:auto}.teacher-workbench .workbench-rail.is-open{display:flex}.teacher-workbench .workbench-rail>button{min-width:0}}@media (max-width:600px){.workbench-toolbar{gap:8px;padding:8px;top:64px}.workbench-pagination{justify-content:space-between;gap:3px;width:100%}.workbench-pagination button{padding:8px}.workbench-save-controls{justify-content:space-between;gap:5px;width:100%}.workbench-save-controls>span{flex:100%}.workbench-save-controls button{white-space:nowrap;flex:1;min-width:80px;font-size:12px}.teacher-workbench .workbench-save-controls .workbench-autosave{flex:100%}.teacher-workbench .presentation-page-activities{flex-wrap:wrap}.teacher-workbench .presentation-page-activities>strong{flex:100%}.workbench-activity-editor{padding:12px;scroll-margin-top:230px}.choice-option-row{grid-template-columns:1fr;align-items:stretch}.choice-answer-control{min-height:auto}.choice-option-actions{justify-content:flex-end}.tool-picker-heading{flex-direction:column;align-items:stretch}.tool-picker-shortcuts{grid-template-columns:minmax(0,1fr)}.tool-picker-placement{flex-direction:column;align-items:stretch}.tool-picker-placement>div,.tool-picker-placement button{width:100%}.h5-setup-steps{grid-template-columns:repeat(2,minmax(0,1fr))}}.course-copilot{z-index:80;border-left:1px solid var(--line);width:min(430px,100vw);box-shadow:none;background:#fff;flex-direction:column;gap:16px;padding:24px;display:flex;position:fixed;top:68px;bottom:0;right:0;overflow-y:auto}.course-copilot header{justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.course-copilot header h3{margin-bottom:0;font-size:22px}.course-copilot header>button{width:42px;height:42px;color:var(--muted);cursor:pointer;background:#edf3fb;border:0;border-radius:50%;place-items:center;font-size:24px;display:grid}.copilot-scope,.copilot-empty{border:1px solid var(--line);background:var(--soft);color:var(--muted);border-radius:9px;margin:0;padding:14px;font-size:12px;line-height:1.6}.copilot-runtime-boundary{color:var(--navy-2);background:#fffaf0;border:1px solid #efcf9e;border-radius:9px;margin:0;padding:12px 14px;font-size:12px;line-height:1.6}.copilot-runtime-boundary strong{color:#8a5500}.copilot-intents{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.copilot-intents button{border:1px solid var(--line-strong);min-height:46px;color:var(--navy-2);cursor:pointer;background:#fff;border-radius:8px;padding:8px;font-weight:700}.copilot-empty strong{color:var(--navy);display:block}.copilot-empty p{margin:5px 0 0}.copilot-proposal{flex-direction:column;gap:10px;display:flex}.proposal-heading{flex-direction:column;gap:3px;display:flex}.proposal-heading small{margin:0}.copilot-proposal>label{border:1px solid var(--line);border-radius:9px;flex-direction:row;align-items:flex-start;padding:13px}.copilot-proposal input{flex:none;width:20px;height:20px;padding:0}.copilot-proposal span,.copilot-proposal b,.copilot-proposal small{display:block}.copilot-proposal b{color:var(--navy);line-height:1.55}.copilot-proposal small{color:var(--muted);margin-top:5px;line-height:1.5}.proposal-assumption,.proposal-impact{color:var(--navy-2);background:#fffaf0;border:1px solid #ead9aa;border-radius:9px;flex-direction:column;gap:5px;padding:12px 13px;font-size:12px;line-height:1.55;display:flex}.proposal-impact{border-color:var(--line);background:var(--soft)}.proposal-actions{grid-template-columns:1fr 1fr;gap:8px;display:grid}.proposal-actions .primary-button{grid-column:1/-1}.copilot-error{color:var(--danger);background:#fff1ec;border:1px solid #efb8aa;border-radius:9px;margin:0;padding:12px 13px;font-size:12px;font-weight:750;line-height:1.5}.copilot-inspirations{border-top:1px solid var(--line);flex-direction:column;gap:8px;padding-top:14px;display:flex}.copilot-inspirations>button{border:1px solid var(--line);color:var(--navy-2);text-align:left;cursor:pointer;background:#fff;border-radius:8px;flex-direction:column;gap:4px;padding:11px 12px;display:flex}.copilot-inspirations small{color:var(--muted)}.copilot-demo-note{color:var(--muted);margin-top:auto;line-height:1.5}.async-course-page{background:var(--wash);min-height:calc(100vh - 68px);overflow-x:clip}.async-course-topbar{z-index:20;border-bottom:1px solid var(--line);background:#fff;grid-template-columns:minmax(140px,1fr) minmax(0,2fr) auto;align-items:center;gap:16px;min-height:58px;padding:8px max(24px,50vw - 620px);display:grid;position:sticky;top:68px}.async-course-topbar a,.async-course-topbar .link-button{min-height:44px;color:var(--blue);align-items:center;font-weight:750;display:inline-flex}.async-course-topbar .link-button{appearance:none;cursor:pointer;font:inherit;background:0 0;border:0}.async-course-topbar>strong{text-align:center;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.async-course-shell{grid-template-columns:290px minmax(0,1fr);gap:24px;width:min(1240px,100% - 40px);margin:0 auto;padding:28px 0 72px;display:grid}.async-course-outline{border:1px solid var(--line);background:#fff;border-radius:14px;align-self:start;padding:24px;position:sticky;top:150px}.async-course-outline h1{margin-bottom:10px;font-size:24px;line-height:1.25}.async-course-outline>p:not(.eyebrow){color:var(--muted);font-size:14px;line-height:1.65}.async-course-outline nav{gap:8px;margin-top:22px;display:grid}.async-course-outline nav a{border:1px solid #0000;border-radius:10px;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:10px;min-height:58px;padding:10px;display:grid}.async-course-outline nav a>span{background:var(--soft);width:34px;height:34px;color:var(--blue);border-radius:8px;place-items:center;font-size:12px;font-weight:850;display:grid}.async-course-outline nav a>strong{font-size:14px;line-height:1.45}.async-course-outline nav a[aria-current=page]{background:#eff6ff;border-color:#9bbcf9}.async-lesson-workspace{min-width:0}.async-lesson-heading,.async-task-summary,.async-component-card,.learner-assistant-state{border:1px solid var(--line);background:#fff;border-radius:14px}.async-lesson-heading{padding:clamp(24px,4vw,40px)}.async-lesson-heading h1{letter-spacing:-.025em;margin-bottom:14px;font-size:clamp(30px,4vw,44px);line-height:1.14}.async-lesson-heading>p:not(.eyebrow){color:var(--muted);font-size:17px;line-height:1.7}.async-lesson-heading dl{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:24px 0 0;display:grid}.async-lesson-heading dl>div{border-left:3px solid var(--blue);background:var(--soft);padding:14px 16px}.async-lesson-heading dt{color:var(--muted);margin-bottom:5px;font-size:12px;font-weight:750}.async-lesson-heading dd{margin:0;line-height:1.55}.async-task-nav,.async-component-nav{scroll-snap-type:x proximity;scrollbar-width:thin;gap:10px;padding:16px 0 4px;display:flex;overflow-x:auto}.async-task-nav a,.async-component-nav a{border:1px solid var(--line);scroll-snap-align:start;background:#fff;border-radius:11px;flex-direction:column;flex:1 0 210px;justify-content:center;gap:4px;min-width:210px;min-height:64px;padding:12px 15px;display:flex}.async-task-nav a span,.async-component-nav a span{color:var(--muted);font-size:11px;font-weight:750}.async-task-nav a strong,.async-component-nav a strong{line-height:1.45}.async-task-nav a[aria-current=page],.async-component-nav a[aria-current=page]{border-color:var(--blue);background:var(--blue);color:#fff}.async-task-nav a[aria-current=page] span,.async-component-nav a[aria-current=page] span{color:#dbeafe}.async-task-summary{margin-top:18px;padding:22px 24px}.async-task-summary h2{margin-bottom:8px;font-size:24px}.async-task-summary p{color:var(--muted);margin-bottom:8px;line-height:1.65}.async-task-summary p:last-child{margin-bottom:0}.async-task-summary p strong{color:var(--ink);margin-bottom:4px;font-size:12px;display:block}.async-component-card{margin-top:14px;padding:clamp(22px,4vw,38px)}.async-component-heading{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.async-component-heading h2{margin-bottom:12px;font-size:30px}.async-primary-badge{color:var(--success);background:#e8f5ef;border-radius:999px;flex:none;padding:6px 9px;font-size:11px;font-weight:850}.async-component-lede{color:var(--heading);font-size:18px;font-weight:750}.async-component-card>p{line-height:1.75}.async-document-body{border-left:3px solid var(--blue);background:var(--soft);white-space:pre-wrap;margin-top:20px;padding:20px;line-height:1.75}.async-practice-block{border:1px solid var(--line);background:var(--wash);border-radius:12px;gap:18px;margin-top:24px;padding:22px;display:grid}.async-practice-block h3{margin-bottom:0;font-size:18px}.async-instruction{color:var(--muted);background:#fff8f3;border-radius:10px;flex-direction:column;gap:4px;margin-top:18px;padding:15px 17px;display:flex}.async-instruction strong{color:var(--rust);font-size:12px}.async-primary-resource,.async-side-resources{margin-top:24px}.async-primary-resource h3,.async-side-resources h3{font-size:17px}.async-resource-link{color:var(--blue);gap:10px;font-weight:750;display:grid}.async-resource-link img{border:1px solid var(--line);object-fit:contain;background:#fff;border-radius:12px;width:100%;height:auto;max-height:620px}.async-pdf-resource{border:1px solid var(--line);border-radius:12px;overflow:hidden}.async-pdf-resource object{background:#fff;border:0;width:100%;min-height:520px;display:block}.async-pdf-resource>a,.async-external-resource{min-height:48px;color:var(--blue);justify-content:center;align-items:center;padding:10px 14px;font-weight:750;display:flex}.async-side-resources>div{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.async-side-resources .side{border:1px solid var(--line);border-radius:10px}.async-resource-error{color:var(--danger);background:#fff8f3;border:1px solid #fed7c8;border-radius:10px;margin:0;padding:16px}.async-persistence-notice{border-top:1px solid var(--line);color:var(--muted);padding-top:18px;font-size:13px;margin:24px 0 0!important}.learner-assistant-state{flex-direction:column;align-items:flex-start;gap:4px;margin-top:14px;padding:16px 18px;display:flex}.learner-assistant-state strong{color:var(--blue)}.learner-assistant-state span{color:var(--muted);font-size:13px;line-height:1.5}.preview-launch-card{justify-content:space-between;align-items:center;gap:28px;max-width:1180px;margin:20px auto 0;padding:24px 28px;display:flex}.preview-launch-card h2{margin-bottom:7px;font-size:22px}.preview-launch-card p:last-child{max-width:680px;color:var(--muted);margin-bottom:0;line-height:1.6}.preview-launch-card form{flex:none}.preview-entry-card{width:min(560px,100%);padding:40px}.preview-entry-card h1{font-size:clamp(30px,5vw,42px);line-height:1.15}.preview-entry-card>p{color:var(--muted);line-height:1.65}.preview-entry-card form{gap:18px;margin:24px 0 18px;display:grid}.preview-entry-card input{text-align:center;letter-spacing:.2em;text-transform:uppercase;font-size:24px;font-weight:850}.preview-manager-shell{align-items:start}.preview-manager-card{width:min(960px,100%);padding:clamp(28px,5vw,48px)}.preview-manager-card>p{max-width:760px;color:var(--muted);line-height:1.7}.preview-share-grid{grid-template-columns:220px 1fr 1fr;gap:16px;margin:28px 0;display:grid}.preview-session-qr,.preview-pin-box,.preview-share-grid dl{border:1px solid var(--line);border-radius:12px;min-height:220px}.preview-session-qr{background:#fff;flex-direction:column;justify-content:center;align-items:center;padding:14px;display:flex}.preview-session-qr img{width:180px;height:180px}.preview-session-qr span{color:var(--muted);font-size:12px}.preview-pin-box{background:var(--navy);color:#fff;flex-direction:column;justify-content:center;padding:24px;display:flex}.preview-pin-box span,.preview-pin-box small{color:#bcd1ec}.preview-pin-box strong{color:#fff;letter-spacing:.14em;margin:10px 0;font-size:clamp(34px,5vw,48px)}.preview-share-grid dl{background:var(--soft);margin:0;padding:14px 22px}.preview-share-grid dl div{border-bottom:1px solid var(--line);padding:12px 0}.preview-share-grid dl div:last-child{border-bottom:0}.preview-share-grid dt{color:var(--muted);font-size:12px}.preview-share-grid dd{color:var(--navy);margin:4px 0 0;font-weight:750}.preview-result-inspector{border:1px solid var(--line);background:#fff;border-radius:12px;grid-column:1/-1;gap:10px;padding:16px 18px;display:grid}.preview-result-inspector>div{justify-content:space-between;gap:12px;display:flex}.preview-result-inspector>div span,.preview-result-inspector>p{color:var(--muted)}.preview-result-inspector>p{margin:0}.preview-result-inspector details pre{color:#d9e9ff;white-space:pre-wrap;background:#081a38;border-radius:10px;max-height:320px;padding:14px;font-size:12px;overflow:auto}.preview-short-link{flex-wrap:wrap;align-items:center;gap:8px 16px;margin:-8px 0 24px;display:flex}.preview-short-link span{color:var(--muted);font-size:13px;font-weight:750}.preview-short-link a{overflow-wrap:anywhere;color:var(--blue);font-weight:750}@media (max-width:1100px){.course-editor-shell{padding-bottom:calc(112px + env(safe-area-inset-bottom))}.authoring-step-nav{grid-template-columns:repeat(3,minmax(190px,1fr));overflow-x:auto}.lesson-switcher{grid-template-columns:minmax(180px,1fr) minmax(220px,1.2fr) minmax(180px,1fr);overflow-x:auto}.lesson-authoring-mode{flex-direction:column;align-items:stretch;padding:20px 18px}.authoring-mode-options{grid-template-columns:1fr;min-width:0}.presentation-authoring{padding:20px 14px}.presentation-empty-state,.presentation-workspace{grid-template-columns:1fr}.presentation-page-rail{flex-direction:row;max-height:none;overflow-x:auto}.presentation-page-rail>div{flex-direction:column;min-width:150px}.presentation-page-rail>button{min-width:210px}.presentation-stage-toolbar{flex-direction:column;align-items:stretch}.presentation-page-stage iframe,.presentation-text-preview{min-height:300px}.presentation-text-preview{padding:28px 22px}.component-row{grid-template-columns:1fr}.component-row-actions{border-top:1px solid var(--line);border-left:0;justify-content:flex-end}.three-columns{grid-template-columns:1fr 1fr}.course-editor-actions{bottom:calc(96px + env(safe-area-inset-bottom))}.authoring-outline,.lesson-switcher,.task-rail,.lesson-editor,.task-workspace,.publish-readiness-grid,.readiness-row{scroll-margin-top:170px}.async-course-shell{grid-template-columns:240px minmax(0,1fr)}}@media (max-width:760px){.desktop-brand-header{display:none}.mobile-brand-header{min-height:64px;padding:0 16px;display:flex}.environment-badge.compact{min-height:28px;padding:0 10px;font-size:11px}.landing-shell,.center-shell{min-height:calc(100vh - 64px);padding:26px 16px}.hero-card{border-radius:14px;padding:36px 24px}.hero-card h1{font-size:40px}.lede{font-size:17px}.choice-grid,.builder-grid{grid-template-columns:1fr}.choice-grid{margin-top:28px}.choice-card{min-height:112px}.panel.narrow,.completion-card{padding:30px 22px}.admin-workspace{grid-template-columns:1fr;min-height:calc(100vh - 64px)}.admin-sidebar{height:auto;padding:12px 14px;position:static}.admin-sidebar>div{min-width:0}.sidebar-label,.sidebar-exit{display:none}.sidebar-nav{flex-direction:row;overflow-x:auto}.sidebar-nav a{flex:none;min-height:42px}.admin-main{padding:28px 14px 56px}.admin-header{flex-direction:column;gap:14px}.admin-header h1{font-size:34px}.builder-grid .full,.publish-card{grid-column:auto}.two-columns{grid-template-columns:1fr}.form-section{padding:24px 20px}.publish-card{flex-direction:column;align-items:stretch;padding:24px 20px}.button-row{flex-direction:column}.invitation-safety{flex-direction:column;align-items:stretch}.invitation-safety .button{width:100%}.invitation-grid,.invitation-grid.with-qr,.single-column-builder,.published-version-grid,.course-document-card,.node-view-grid,.resource-upload-fields{grid-template-columns:1fr}.published-version-card,.continue-version-card,.protocol-error-card,.course-document-card,.course-scene-card{padding:22px 18px}.continue-version-card{position:static}.course-document-card .editor-card-heading{grid-column:auto}.course-chapter-heading{flex-direction:column;align-items:stretch;gap:0}.course-chapter-heading>span{padding-bottom:8px}.course-editor-actions{flex-direction:column;align-items:stretch;position:static}.course-editor-actions>div:last-child{flex-direction:column;align-items:stretch}.course-editor-actions .button{width:100%}.resource-row{flex-direction:column;align-items:flex-start}.resource-row>div:last-child{justify-content:space-between;width:100%}.resource-placement-row,.resource-placement-row>label{grid-template-columns:1fr}.resource-order-controls{justify-content:flex-start}.learner-primary-resource object{min-height:280px}.version-metrics{grid-template-columns:repeat(3,1fr)}.course-overview-fields,.publish-readiness-grid,.three-columns{grid-template-columns:1fr}.authoring-stage-header,.lesson-confirm-row{flex-direction:column;align-items:stretch}.course-floating-ai-trigger{top:76px;right:calc(14px + env(safe-area-inset-right));width:min(220px, calc(100vw - 28px - env(safe-area-inset-left) - env(safe-area-inset-right)))}.outline-summary{grid-template-columns:auto 1fr}.outline-overview-entry{grid-template-columns:56px minmax(0,1fr)}.outline-overview-entry small{grid-column:2}.outline-add-actions{flex-direction:column;align-items:stretch}.outline-batch-add{flex-basis:auto}.outline-row{grid-template-columns:1fr}.outline-row-actions{border-top:1px solid var(--line);border-left:0;justify-content:flex-end;padding:8px 12px}.outline-row-main{grid-template-columns:44px minmax(0,1fr)}.outline-row-main .lesson-state{grid-column:2;justify-self:start}.component-open{grid-template-columns:78px minmax(0,1fr)}.component-open small{grid-column:2}.component-add-buttons{justify-content:flex-start}.component-editor-card .editor-card-heading{flex-direction:column;align-items:flex-start}.component-effective-type{flex-direction:column}.component-type-change{width:100%}.component-type-change>div{flex-wrap:wrap}.course-copilot{width:100vw;top:64px}.copilot-intents{grid-template-columns:1fr}.component-resource-placements>div{flex-direction:column;align-items:flex-start;padding:10px 0}.component-resource-placements>div>span:last-child{flex-wrap:wrap}.optional-settings>summary,.component-attachment-settings>summary{flex-direction:column;align-items:flex-start;gap:4px}.optional-settings>summary span,.component-attachment-settings>summary span{margin-left:0}.optional-settings>summary:after,.component-attachment-settings>summary:after{align-self:flex-end;position:absolute}.compact-upload-heading{flex-direction:column;align-items:flex-start;gap:4px}.compact-upload-row{grid-template-columns:1fr}.compact-upload-row .button{width:100%}.operations-shell{min-height:calc(100vh - 64px);padding:28px 14px 72px}.operations-heading{flex-direction:column;align-items:stretch}.operations-grid{grid-template-columns:1fr}.operations-card{padding:22px 18px}.member-row{grid-template-columns:1fr auto}.member-row form{grid-column:1/-1}.mobile-shell,.course-page{min-height:calc(100vh - 64px);box-shadow:none}.course-page article{padding-top:38px}.async-course-topbar{grid-template-columns:1fr auto;padding:7px 14px;top:64px}.async-course-topbar>strong{display:none}.async-course-shell{grid-template-columns:1fr;gap:14px;width:min(100% - 24px,720px);padding-top:14px}.async-course-outline{padding:20px 18px;position:static}.async-course-outline>p:not(.eyebrow){margin-bottom:12px}.async-course-outline nav{scroll-snap-type:x proximity;margin-top:12px;padding-bottom:4px;display:flex;overflow-x:auto}.async-course-outline nav a{scroll-snap-align:start;flex:0 0 220px;min-width:220px}.async-lesson-heading{padding:24px 20px}.async-lesson-heading dl{grid-template-columns:1fr}.async-task-nav a,.async-component-nav a{flex-basis:190px;min-width:190px}.async-component-heading{flex-direction:column-reverse}.async-component-card{padding:24px 20px}.async-side-resources>div{grid-template-columns:1fr}.async-pdf-resource object{min-height:420px}.preview-launch-card{flex-direction:column;align-items:stretch}.preview-launch-card .button{width:100%}.preview-entry-card{padding:28px 22px}.preview-share-grid{grid-template-columns:1fr}.classroom-start-shell{place-items:start center;min-height:calc(100vh - 64px);padding:16px}.classroom-start-card{border-radius:16px}.classroom-start-heading{grid-template-columns:44px minmax(0,1fr);gap:12px;padding:22px 20px 20px}.classroom-start-mark{border-radius:13px;width:44px;height:44px}.classroom-start-status{grid-column:2;justify-self:start}.classroom-start-heading h1{font-size:28px}.classroom-start-form{gap:18px;padding:20px}.classroom-start-facts{grid-template-columns:1fr;gap:8px}.classroom-start-facts>div{padding:12px}.classroom-start-form .classroom-guest-access{padding:16px}.classroom-start-actions{flex-direction:column-reverse;align-items:stretch}.classroom-start-actions .button{width:100%}.classroom-active-session{flex-direction:column;align-items:stretch;margin:20px}.classroom-session-history,.classroom-start-back{margin:0 20px 20px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}