@charset "UTF-8";
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.details{margin-bottom:14px;background:white;border:1px solid var(--line);border-radius:12px;padding:18px}.details summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;font-weight:600}.details summary::-webkit-details-marker{display:none}.details[open] summary{margin-bottom:20px}.code-view{white-space:pre-wrap;font:12px/1.8 Consolas,monospace;max-height:350px;overflow:auto;background:#17251f;color:#d9e7c9;padding:18px;border-radius:10px}.details h4{font-size:12px;font-weight:600;color:var(--muted);margin-bottom:10px}.review-grid{display:grid;grid-template-columns:1fr 120px;gap:15px}.events{font-size:11px;color:var(--muted);line-height:1.8}.events li{margin-bottom:6px}.skeleton{min-height:100px;display:grid;place-items:center;color:var(--muted)}#toast{position:fixed;bottom:26px;left:50%;transform:translate(-50%,15px);padding:13px 20px;background:#203c2c;color:white;border-radius:12px;font-size:12px;box-shadow:0 10px 35px #13271d25;z-index:130;opacity:0;pointer-events:none;transition:.2s;max-width:calc(100vw - 32px);text-align:center}#toast.show{opacity:1;transform:translate(-50%,0)}#toast.error{background:#904336}#celebration{position:fixed;inset:0;pointer-events:none;z-index:120;display:grid;place-items:center}.success-pop{background:white;border:1px solid #dfe9d5;border-radius:24px;box-shadow:0 24px 90px #16392125;padding:35px 50px;text-align:center;animation:success-in .45s cubic-bezier(.2,.8,.3,1.3)}.success-pop strong{display:block;font-size:21px;font-weight:600;margin-top:20px}.success-pop p{color:var(--muted);font-size:12px;margin:9px 0 0}.success-check{width:68px;height:68px;border-radius:50%;background:var(--green-light);margin:auto;display:grid;place-items:center;color:#4f7d3a}.success-check svg{width:35px;height:35px;stroke-dasharray:70;stroke-dashoffset:70;animation:check-draw .5s .1s forwards}.confetti{position:fixed;left:50%;top:50%;width:7px;height:12px;border-radius:2px;background:var(--color);animation:confetti 1.6s cubic-bezier(.1,.7,.3,1) both}.offline{background:#fff3df;color:#93682e;padding:10px 20px;text-align:center;font-size:12px}.teacher-label{font-size:10px;letter-spacing:1px;color:var(--muted)}.empty-code{color:var(--muted);font-size:12px}.alert{border-radius:10px;padding:13px;background:#fbeee6;font-size:12px;line-height:1.8;color:#946642}.footer-note{font-size:10px;color:#98a18e;text-align:center;margin-top:35px;line-height:1.8}.native-check{width:auto;accent-color:var(--green)}
@keyframes success-in{from{opacity:0;transform:translateY(25px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes check-draw{to{stroke-dashoffset:0}}@keyframes confetti{0%{transform:translate(0,0) rotate(0);opacity:1}100%{transform:translate(var(--x),var(--y)) rotate(var(--r));opacity:0}}
@media(min-width:1600px){.content{padding-top:50px}.hero{padding:42px}.hero h2{font-size:34px}}@media(max-width:1200px){.sidebar{width:210px;padding:28px 16px 20px}.main-wrap{margin-left:210px}.topbar{padding:0 30px}.content{padding:30px}.hero{grid-template-columns:1fr 135px;padding:30px}.progress-ring{width:120px;height:120px}.practice-grid{grid-template-columns:minmax(0,1fr) 280px}.reading-layout{grid-template-columns:minmax(0,1fr) 200px;gap:18px}.reading{padding:25px}.stats-grid{gap:10px}.stat{padding:18px}.step{padding:12px}.course-card{padding:23px}.course-card .course-stats{gap:12px}}@media(max-width:950px){.sidebar{transform:translateX(-100%);transition:.2s;width:238px}.sidebar.open{transform:translateX(0);box-shadow:0 0 0 100vmax #10261d55}.sidebar .logo{cursor:pointer}.main-wrap{margin:0}.mobile-menu{display:inline-flex}.topbar{height:68px;padding:0 24px}.content{padding:28px 24px}.reading-layout{grid-template-columns:1fr}.reading-side{position:static;display:block}.reading-side .study-plan{display:none}.reading-side .btn{width:auto}.reading-side p{display:inline-block;margin:0 15px 10px 0}.practice-grid{grid-template-columns:1fr 280px}}@media(max-width:700px){.auth{grid-template-columns:1fr}.auth-art{padding:24px}.auth-art h1,.auth-art>p,.auth-art .auth-foot,.orbit{display:none}.auth-form{padding:32px 26px}.auth-form h2{font-size:26px}.topbar{padding:0 17px}.top-actions .date{display:none}.top-actions{gap:8px}.crumb{font-size:11px;gap:8px}.content{padding:25px 17px 35px}.page-head{margin-bottom:23px}h1{font-size:29px}.hero{grid-template-columns:1fr 90px;padding:25px 22px;gap:10px}.hero h2{font-size:23px;letter-spacing:-.6px}.hero p{font-size:12px}.hero .btn{font-size:11px;padding:10px 12px}.hero .eyebrow{font-size:9px;letter-spacing:1px}.progress-ring{width:86px;height:86px;align-self:center}.progress-ring:before{inset:5px}.progress-ring strong{font-size:23px}.progress-ring small{font-size:8px}.course-grid{grid-template-columns:1fr}.course-card h3{margin-top:20px;font-size:18px}.stats-grid{grid-template-columns:1fr 1fr}.stat{padding:18px}.stat strong{font-size:26px}.list-row{padding:17px 15px;gap:12px}.list-number{width:32px;height:34px;border-radius:8px;font-size:11px}.list-text h3{font-size:13px}.list-row .badge{max-width:100px;overflow:hidden;text-overflow:ellipsis;font-size:9px;padding:4px 6px}.list-row .chev{display:none}.list-text p{font-size:10px}.reading{padding:23px 19px}.material{font-size:13px;line-height:1.9}.material h3{font-size:16px}.lab-heading h1{font-size:24px}.steps{padding:5px;gap:3px}.step{padding:10px 8px;gap:7px;font-size:10px;justify-content:center}.step b{width:20px;height:20px;font-size:9px}.practice-grid{grid-template-columns:1fr}.practice-head{flex-direction:column;gap:10px}.editor-card{order:2}.practice-side{order:1}.task-box{padding:22px}.code{font-size:12px;min-height:290px}.line-numbers{font-size:12px}.editor-area{min-height:290px}.task-tabs{gap:20px}.task-tabs button{font-size:12px}.question{padding:20px 17px}.question label{font-size:12px;padding:12px}.modal-backdrop{padding:12px}.modal{padding:24px 17px;border-radius:15px}.modal h2{font-size:21px;padding-right:25px}.modal .details{padding:15px}.review-grid{grid-template-columns:1fr}.success-pop{padding:28px 30px;max-width:calc(100vw - 40px)}.success-pop strong{font-size:19px}.filters input{max-width:100%}.filters select{flex:1}.status-banner{padding:17px}.reading-side{padding:19px}.card{padding:22px}.course-switch button{padding:9px 13px}.original-text .material{max-height:500px}.section-title h2{font-size:18px}.topbar .icon-btn{padding:8px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}.success-check svg{stroke-dashoffset:0}}

.completion{position:absolute;z-index:15;width:min(355px,calc(100% - 10px));max-height:260px;overflow:auto;background:#24372d;border:1px solid #547051;border-radius:10px;box-shadow:0 10px 35px #0005;padding:5px}.completion button{display:block;background:transparent;color:#cfdfc4;width:100%;padding:9px 11px;text-align:left;border-radius:6px}.completion button.selected,.completion button:hover{background:#3b523b}.completion strong{display:block;font:12px Consolas,monospace;font-weight:500}.completion span{font:10px/1.6 Segoe UI,sans-serif;display:block;color:#a7b99e;margin-top:4px}.evidence-table{width:100%;border-collapse:collapse;font-size:12px}.evidence-table th{text-align:left;color:var(--muted);font-size:10px;font-weight:500;padding:10px}.evidence-table td{padding:9px;border:1px solid var(--line);min-width:130px;vertical-align:top;white-space:pre-wrap}.evidence-table td:first-child{min-width:130px;font-size:11px;color:var(--muted)}.evidence-table textarea{min-height:80px;padding:10px;font-size:12px}
[hidden]{display:none!important}

@media(pointer:coarse){input,textarea,select{font-size:16px!important}.material{font-size:15px}}

.add-group-link{background:none;color:var(--green);font-size:10px;line-height:1.6;text-align:left;padding:8px 0 0}.add-group-link:hover{text-decoration:underline}.subject-progress{border:1px solid #dce6d5;border-radius:14px;background:#f0f5eb;padding:19px 23px;margin-bottom:28px}.subject-progress-top{display:flex;gap:20px;align-items:center;justify-content:space-between}.subject-progress .eyebrow{font-size:9px;letter-spacing:1.2px;margin:0;color:#63805b}.subject-progress p{font-size:11px;color:#778872;margin:7px 0 13px;line-height:1.7}.subject-progress strong{font:29px/1 Consolas,monospace;color:var(--green);font-weight:500;white-space:nowrap}.subject-progress small{font-size:15px;margin-left:2px}.subject-meter{height:7px;background:#dfe8d7;border-radius:6px;overflow:hidden}.subject-meter i{height:100%;display:block;background:#73985b;border-radius:6px;transition:width .6s ease}.student-subject{min-width:95px}.student-subject .subject-meter{margin:7px 0 3px;height:5px}.student-subject strong{font:14px Consolas,monospace;color:var(--green)}@media(max-width:700px){.subject-progress{padding:17px;margin-bottom:24px}.subject-progress p{font-size:10px}.subject-progress strong{font-size:25px}.subject-progress .eyebrow{font-size:8px;letter-spacing:.8px}.auth-form .form-grid{grid-template-columns:minmax(0,1fr) 82px}}

/* Practice reuses the campus cards, editor and colours. */
.exercise-tabs{display:flex;flex-wrap:wrap;gap:7px}.exercise-tabs button{flex:1 1 150px;text-align:left}.case-card{border:1px solid var(--line,#dce4dc);border-radius:12px;padding:14px;margin:12px 0}.case-card summary{cursor:pointer;display:flex;align-items:center;gap:8px}.case-pass{border-color:#9dbf94}.case-fail{border-color:#d5b79d}.sample-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:10px;min-width:0}.sample-grid>div{min-width:0}.sample-grid pre{white-space:pre-wrap;overflow-wrap:anywhere}.exercise-checks,.course-exam{margin-top:24px}.assessment-options{display:grid;gap:10px;margin:20px 0}.assessment-options label{display:flex;align-items:flex-start;gap:12px;padding:14px;border:1px solid #dce4dc;border-radius:12px;cursor:pointer}.assessment-options pre{white-space:pre-wrap;margin:0;overflow-wrap:anywhere;min-width:0}.assessment-options input{margin-top:4px;accent-color:#163e36}.question-dots{display:flex;flex-wrap:wrap;gap:7px;margin-top:20px}.question-dots button{width:34px;height:34px;border:1px solid #dce4dc;border-radius:8px}.question-dots .answered{background:#e3efdd}.question-dots .active{outline:2px solid #49715d}.code-view{max-width:100%}.steps{overflow-x:auto}.steps .step{min-width:0}@media(max-width:650px){.sample-grid{grid-template-columns:1fr}.exercise-tabs button{flex-basis:42%;font-size:12px}.steps .step span{font-size:11px}.steps .step{padding:10px 6px;gap:5px}.case-card{padding:11px}}

.assessment-options input[type=radio]{width:18px;min-width:18px;height:18px;flex:0 0 18px;padding:0}.assessment-options pre{flex:1;min-width:0;font-size:13px;line-height:1.6}.assessment-options label{justify-content:flex-start}

.editor-card .run-feedback{margin:0;border-radius:0;background:#f1f6ec;color:#193d32;border:0;border-top:1px solid #dbe4d3;padding:18px 22px}.run-feedback h3{margin:0 0 10px;font-size:16px}.run-feedback p{font-size:13px}.run-feedback li{margin:7px 0}
/* Source assignments and teaching notes retain the campus visual language. */
.course-stack{display:grid;gap:20px;min-width:0}.learning-notes h2{margin-top:10px}.learning-notes p,.worked-example li{line-height:1.75}.worked-example>summary{font-weight:600;cursor:pointer;display:flex;align-items:center;gap:10px}.worked-example[open]>summary{margin-bottom:18px}.course-stack article,.course-stack section,.source-project{min-width:0}.source-project{display:grid;gap:18px;margin-top:22px}.source-project .task-tabs{flex-wrap:wrap}.source-project .task-tabs button{overflow-wrap:anywhere}.source-project .editor-card{min-width:0}.course-steps{grid-template-columns:repeat(5,minmax(0,1fr))}.source-checks .case-card{margin:8px 0}.course-stack .code-view{max-height:420px;overflow:auto}.source-project .console{max-height:350px;overflow:auto}
@media(max-width:700px){.course-steps{display:flex;overflow-x:auto;padding-bottom:8px}.course-steps .step{flex:0 0 145px}.course-stack{gap:14px}.learning-notes .sample-grid,.worked-example .sample-grid{grid-template-columns:1fr}.source-project .row.spread{align-items:stretch}.source-project .task-tabs{max-width:100%}.source-project .task-tabs button{white-space:normal}.source-project .editor-bottom{flex-wrap:wrap;gap:12px}.source-project .editor-bottom .btn{width:100%}}

/* Clear task briefs, approval notifications and durable audit. */
.task-brief{margin:20px 0}.task-brief h3{font-size:15px;margin:22px 0 10px}.task-statement{white-space:pre-wrap;line-height:1.85;font-size:15px}.task-brief .sample-grid>section{min-width:0}.task-brief details{margin-top:20px}.task-brief summary{cursor:pointer;font-weight:600}.help-actions{display:grid;gap:12px}.help-actions .btn{white-space:normal;text-align:left}.help-actions pre{max-width:100%;overflow:auto}.code-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:12px;padding:12px 16px;background:#f5f7f2;border-top:1px solid var(--line)}.request-indicator.has-requests{background:#e8f3ca;box-shadow:0 0 0 2px #8da65f66}.request-indicator.has-requests b{background:#315d39;color:#fff;min-width:24px;border-radius:30px;padding:4px 7px;animation:request-glow 2s ease-in-out infinite}.request-card{margin:18px 0}.request-card textarea{margin:8px 0 16px}.audit-filters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.audit-filters label{display:grid;gap:6px;font-size:12px;min-width:0}.audit-filters .row{grid-column:1/-1}.audit-table td{vertical-align:top;white-space:normal;overflow-wrap:anywhere;max-width:340px}.creative{margin-top:24px}.creative summary{font-weight:600;cursor:pointer}.creative textarea{width:100%;margin:10px 0 20px;min-height:100px}.creative-code{min-height:300px!important;background:#17251f;color:#e9f2de;font:13px/1.7 Consolas,monospace}.professional-preview{margin:18px 0}.teacher-preview .btn{white-space:normal;text-align:left}.request-indicator{gap:8px}
@keyframes request-glow{50%{box-shadow:0 0 0 5px #9cb26533}}
@media(prefers-reduced-motion:reduce){.request-indicator.has-requests b{animation:none}}
@media(max-width:800px){.audit-filters{grid-template-columns:1fr 1fr}.task-brief .sample-grid{grid-template-columns:1fr}.task-brief{padding:20px}.code-toolbar .small{font-size:10px}.request-indicator{font-size:11px;padding:8px}.request-card .row{flex-direction:column}.audit-table{min-width:750px}}
@media(max-width:480px){.audit-filters{grid-template-columns:1fr}.top-actions>.date{display:none}.task-statement{font-size:14px}.exercise-tabs{max-height:210px;overflow:auto}}

#lab-body>.card .task-tabs{flex-wrap:wrap}#lab-body>.card .task-tabs button{white-space:normal}.practice-grid>div{min-width:0}

/* Learning reactions never cover the editor with a modal. */
.learning-cue{position:fixed;right:22px;bottom:22px;z-index:145;display:flex;gap:12px;align-items:center;width:min(380px,calc(100vw - 32px));background:#fff;border:1px solid #dbe7d6;border-radius:18px;padding:16px;box-shadow:0 15px 50px #163e3620;pointer-events:none;animation:cue-arrive .35s ease-out}.learning-cue strong{font-size:13px;line-height:1.5;display:block}.learning-cue p{font-size:12px;line-height:1.6;color:#657368;margin:5px 0 0}.learning-cue>button{align-self:flex-start;border:0;background:none;color:#718075;padding:0 3px;pointer-events:auto;font-size:19px;cursor:pointer}.cue-face{position:relative;width:58px;height:58px;flex:0 0 58px;color:#46745c}.cue-face svg{width:100%;height:100%}.cue-spark{position:absolute;right:-2px;top:0;color:#93aa55;font-size:22px;animation:cue-spark .9s ease-out}.learning-cue.error{border-color:#e7d9c5}.learning-cue.error .cue-face{color:#a17c53}.learning-cue.error .cue-face svg{animation:cue-sigh .8s ease-out}.learning-cue.hint .cue-face{color:#5e8561}.theory-bridge{scroll-margin-top:80px}.theory-map{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.theory-map a{background:#edf3e7;color:#31594a;border:1px solid #dfe8d6;border-radius:24px;padding:7px 11px;font-size:11px;text-decoration:none}.theory-topic{border-top:1px solid var(--line);padding:16px 0;scroll-margin-top:90px}.theory-topic summary{font-weight:600;cursor:pointer}.theory-topic p{line-height:1.85;font-size:14px}.theory-topic pre{margin:14px 0}.rest-card{margin-top:22px}#rest-overlay{position:fixed;inset:0;background:#18382f73;backdrop-filter:blur(6px);z-index:160;display:grid;place-items:center;padding:18px;overscroll-behavior:contain}.rest-dialog{width:min(560px,100%);max-height:calc(100dvh - 36px);overflow:auto;background:#fafcf8;border:1px solid #e2eadb;box-shadow:0 24px 80px #102b3130;border-radius:24px;padding:26px;animation:cue-arrive .3s ease-out}.rest-dialog h2{font-size:23px;margin:8px 0 12px}.rest-clock{font:700 29px/1.2 Consolas,monospace;color:#2b5a46;min-width:92px;text-align:center;background:#e8f0df;padding:12px;border-radius:14px}.rest-board{display:grid;gap:12px;margin:22px 0;grid-template-columns:repeat(4,minmax(0,1fr))}.rest-board button{border:1px solid #cedec6;min-height:76px;border-radius:16px;background:white;color:#477753;font-size:35px;cursor:pointer;transition:background .15s,transform .15s}.rest-board button:hover:not(:disabled){background:#edf5e5;transform:translateY(-2px)}.rest-board button.matched{background:#dcebcf;color:#547347}.rest-board button:disabled{cursor:default}.rest-board.rest-mode-1{grid-template-columns:repeat(3,minmax(0,1fr))}.rest-board.rest-paused{opacity:.45}.rest-dialog .btn{white-space:normal}.rest-dialog #rest-message{min-height:42px;font-size:14px;line-height:1.65}.rest-dialog .row{gap:10px}
@keyframes cue-arrive{from{opacity:0;transform:translateY(18px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes cue-sigh{35%{transform:rotate(-8deg) translateY(3px)}70%{transform:rotate(5deg)}100%{transform:none}}@keyframes cue-spark{from{transform:scale(.2) rotate(-30deg);opacity:0}to{transform:scale(1) rotate(0);opacity:1}}
@media(max-width:480px){.learning-cue{right:16px;bottom:16px;padding:12px}.cue-face{width:45px;height:45px;flex-basis:45px}.rest-dialog{padding:20px;border-radius:20px}.rest-dialog h2{font-size:20px}.rest-board{gap:8px}.rest-board button{min-height:59px;font-size:28px;border-radius:12px}.rest-clock{font-size:25px;padding:10px;min-width:80px}.theory-map a{font-size:10px}.theory-topic p{font-size:13px}}
@media(prefers-reduced-motion:reduce){.learning-cue,.cue-face svg,.cue-spark,.rest-dialog{animation:none!important}.rest-board button{transition:none}.rest-board button:hover:not(:disabled){transform:none}}

.task-theory-links{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin:-4px 0 20px}.task-theory-links .btn{font-size:10px;padding:7px 10px;white-space:normal}.theory-topic .subtle-note{margin-bottom:0}
/* Password change, material availability, teachers */
.form-success{color:#34704c;background:var(--green-light);padding:12px;border-radius:8px;font-size:13px;margin-bottom:15px;display:none}
.form-success.show{display:block}
.password-rules{margin:4px 0 12px;padding-left:18px;line-height:1.7}
.list-row.is-closed{background:#fbfbf9;color:var(--muted)}
.list-row.is-closed h3{color:var(--muted)}
.bulk-bar{margin:12px 0;gap:12px;align-items:center}
.small-btn{padding:6px 12px;font-size:12px}
.group-boxes{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 14px}
.group-boxes .chip{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border:1px solid var(--line);border-radius:8px;font-size:12px;background:white}
.pager{margin-top:14px;gap:6px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* A teacher works with grades and journals; account and access management stays with the administrator. */
body[data-role="teacher"] [data-action="reset-password"],body[data-role="teacher"] [data-action="reset-lab-dialog"],body[data-role="teacher"] [data-action="reset-lab-confirm"],body[data-role="teacher"] [data-action="approve-user"],body[data-role="teacher"] [data-action="reject-user"]{display:none!important}