.student-learning-surface{--student-accent:#cc6f00;--student-accent-dark:#8f4d00;--student-accent-soft:#fff3df;--student-blue:#1a6dff;--student-green:#387b13;--student-ink:#3c3c3c;--student-muted:#686868;--student-line:#dedede;--student-paper:#fff;width:min(100%,1180px);min-width:0;color:var(--student-ink);margin-inline:auto;padding:clamp(16px,2.4vw,30px)}.student-learning-surface :is(h1,h2,h3,p,ul,ol,dl,blockquote){min-width:0}.student-learning-surface :is(h1,h2,h3,p,a,strong,small,span,code){overflow-wrap:anywhere}.student-learning-surface :is(button,a,input,select,textarea,summary):focus-visible{outline:3px solid var(--student-blue);outline-offset:3px}.student-learning-surface :is(button,.edu-button,a){-webkit-tap-highlight-color:transparent}.student-learning-surface .edu-button,.student-learning-surface button{min-height:44px}.student-learning-surface .edu-button__label{justify-content:center;align-items:center;gap:8px;min-width:0;display:inline-flex}.student-learning-back-link{color:#575757;border-radius:10px;align-items:center;gap:7px;width:fit-content;min-height:44px;padding:7px 10px;font-size:13px;font-weight:800;text-decoration:none;display:inline-flex}.student-learning-back-link:hover{color:var(--student-accent-dark);background:var(--student-accent-soft)}.student-learning-back-link svg{flex:none;width:17px;height:17px}.student-learning-state{width:min(100%,720px);margin:0 auto}.student-learning-state>.student-surface-state{width:100%;margin:0}.student-learning-surface--immersive:is(.student-learning-surface--lesson,.student-learning-surface--submission):has(>[data-student-state-host=true]){place-items:center;display:grid}.student-learning-state-icon{width:64px;height:64px;color:var(--student-accent-dark);background:var(--student-accent-soft);border:1px solid #f0c98f;border-radius:20px;place-items:center;display:grid;box-shadow:0 4px #edc78f}.student-learning-state-icon.is-success{color:#387b13;background:#f0fae9;border-color:#a9d783;box-shadow:0 4px #a9d783}.student-learning-state-icon svg{width:32px;height:32px}.student-learning-spinner{animation:.9s linear infinite student-learning-spin}@keyframes student-learning-spin{to{transform:rotate(360deg)}}.student-learning-notice{color:#1f527d;background:#f0f7ff;border:1px solid #c9d9ed;border-radius:12px;align-items:center;min-height:44px;margin:0;padding:10px 13px;font-size:13px;font-weight:700;line-height:1.45;display:flex}.student-learning-surface--submission{max-width:1060px}.student-submission-player{gap:18px;width:100%;min-width:0;max-width:720px;margin-inline:auto;display:grid}.student-submission-hero{background:linear-gradient(135deg,#fff3dff5,#fffffffa 58%),#fff;border:1px solid #ebd8bb;border-radius:22px;grid-template-columns:minmax(0,1fr);align-items:end;gap:clamp(20px,4vw,42px);padding:clamp(22px,4vw,38px);display:grid;position:relative;box-shadow:0 5px #ebd8bb}.student-submission-hero:before{background:var(--student-accent);content:"";border-radius:0 999px 999px 0;width:5px;position:absolute;top:18px;bottom:18px;left:0}.student-submission-hero :is(h1,p){margin:0}.student-submission-hero h1{letter-spacing:-.055em;margin-top:7px;font-size:clamp(2rem,5vw,3.65rem);font-weight:850;line-height:1.03}.student-submission-hero>div:first-child>p:last-child{color:#5f5f5f;max-width:66ch;margin-top:14px;line-height:1.65}.student-submission-criteria{border:1px solid var(--student-line);background:#fff;border-radius:16px}.student-submission-criteria-heading{border-bottom:1px solid var(--student-line);border-radius:16px 16px 0 0;justify-content:space-between;align-items:center;gap:14px;min-height:58px;margin:0;padding:12px 16px;font-weight:800;display:flex}.student-submission-criteria-heading>span{align-items:center;gap:9px;display:inline-flex}.student-submission-criteria-heading svg{width:23px;height:23px;color:var(--student-accent-dark)}.student-submission-criteria-heading small{color:#626262;background:#f3f3f3;border-radius:999px;padding:5px 9px;font-size:11px}.student-submission-assignment ul{gap:0;margin:0;padding:8px 16px 12px;list-style:none;display:grid}.student-submission-assignment li{border-bottom:1px solid #efefef;justify-content:space-between;align-items:center;gap:18px;min-height:46px;padding:9px 2px;display:flex}.student-submission-assignment li:last-child{border-bottom:0}.student-submission-assignment li strong{color:var(--student-accent-dark);flex:none;font-size:12px}.student-submission-section-heading{justify-content:space-between;align-items:end;gap:20px;min-width:0;margin-top:8px;display:flex}.student-submission-section-heading :is(h2,p){margin:0}.student-submission-section-heading h2{letter-spacing:-.03em;margin-top:4px;font-size:clamp(1.45rem,3vw,2rem)}.student-submission-save-state,.student-exam-save-state{color:#176535;background:#effaf2;border:1px solid #b4d6be;border-radius:999px;align-items:center;gap:7px;width:fit-content;min-height:36px;padding:7px 11px;font-size:12px;font-weight:800;display:inline-flex}.student-submission-save-state svg,.student-exam-save-state svg{flex:none;width:17px;height:17px}.student-submission-save-state.is-waiting,.student-submission-save-state.is-saving,.student-exam-save-state.is-waiting,.student-exam-save-state.is-saving,.student-exam-save-state.is-offline{color:#784500;background:#fff7e8;border-color:#e7c58c}.student-submission-save-state.is-error,.student-exam-save-state.is-error{color:#8b251b;background:#fff0ed;border-color:#e4aaa2}.student-submission-legacy-draft{color:#6b450a;background:#fff7e4;border:1px solid #e1b461;border-radius:16px;flex-wrap:wrap;align-items:center;gap:10px;padding:16px;display:flex}.student-submission-legacy-draft>:is(strong,p){width:100%;margin:0}.student-submission-editor{border:1px solid var(--student-line);background:#fff;border-radius:18px;gap:10px;padding:clamp(16px,2.5vw,22px);display:grid;box-shadow:0 4px #e7e7e7}.student-submission-editor>span:first-child{gap:4px;display:grid}.student-submission-editor>span strong{font-size:16px}.student-submission-editor>span small,.student-submission-character-count{color:var(--student-muted);font-size:12px;line-height:1.45}.student-submission-editor textarea{resize:vertical;width:100%;min-width:0;min-height:210px;color:var(--student-ink);font:inherit;background:#fcfcfc;border:1.5px solid #cfcfcf;border-radius:13px;padding:14px 15px;line-height:1.65}.student-submission-editor textarea:hover:not(:disabled){border-color:#aaa}.student-submission-editor textarea:focus{border-color:var(--student-blue);background:#fff}.student-submission-character-count{font-variant-numeric:tabular-nums;justify-self:end;font-weight:700}.student-submission-upload{cursor:pointer;background:#fffaf1;border:1.5px dashed #c9a974;border-radius:18px;grid-template-columns:auto minmax(0,1fr) minmax(190px,.38fr);align-items:center;gap:14px;padding:16px;display:grid}.student-submission-upload-icon{color:#fff;background:var(--student-accent);border-radius:14px;place-items:center;width:48px;height:48px;display:grid;box-shadow:0 4px #9a5200}.student-submission-upload-icon svg{width:24px;height:24px}.student-submission-upload>span:nth-child(2){gap:4px;display:grid}.student-learning-surface .student-submission-upload small{color:var(--student-muted);font-size:12px;line-height:1.45}.student-submission-upload input[type=file]{color:#5f5f5f;width:100%;min-width:0;font-size:12px}.student-submission-upload input[type=file]::file-selector-button{color:#fff;background:var(--student-accent-dark);cursor:pointer;min-height:44px;font:inherit;border:1px solid #b96a07;border-radius:10px;margin-right:10px;padding:8px 12px;font-weight:800}.student-submission-upload:has(input:disabled){cursor:not-allowed;opacity:.62}.student-submission-artifacts{gap:9px;margin:0;padding:0;list-style:none;display:grid}.student-submission-artifacts:empty{display:none}.student-submission-artifacts li{border:1px solid var(--student-line);background:#fff;border-radius:14px;grid-template-columns:auto minmax(0,1fr) auto auto;align-items:center;gap:12px;padding:11px 12px;display:grid}.student-submission-file-icon{color:#315f89;background:#edf6ff;border-radius:11px;place-items:center;width:40px;height:40px;display:grid}.student-submission-file-icon svg{width:22px;height:22px}.student-submission-file-copy{gap:3px;min-width:0;display:grid}.student-learning-surface .student-submission-file-copy strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.student-learning-surface .student-submission-file-copy small{color:var(--student-muted);font-size:11px}.student-submission-file-status{color:#176535;background:#effaf2;border-radius:999px;align-items:center;gap:5px;padding:5px 8px;font-size:11px;font-weight:800;display:inline-flex}.student-submission-file-status svg{width:15px;height:15px}.student-submission-artifacts li[data-status=rejected] .student-submission-file-status{color:#8b251b;background:#fff0ed}.student-submission-artifacts li[data-status=processing] .student-submission-file-status{color:#754a08;background:#fff3d8}.student-submission-remove{min-width:44px;padding-inline:10px}.student-submission-remove svg{width:17px;height:17px}.student-submission-actions{border-top:1px solid var(--student-line);flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;padding-top:18px;display:flex}.student-learning-surface .student-submission-actions small{color:#7a4600;text-align:right;width:100%}.student-submission-snapshot{background:#f4fbea;border:1px solid #acd28c;border-radius:18px;gap:10px;padding:20px;display:grid}.student-submission-snapshot :is(h3,p){margin:0}.student-submission-review{background:#fffaf1;border:1px solid #dfc18f;border-radius:18px;gap:14px;min-width:0;margin:0;padding:clamp(18px,3vw,26px);display:grid;box-shadow:0 4px #e8d3b2}.student-submission-review :is(h2,h3,p,blockquote){margin:0}.student-learning-surface .student-submission-review>strong{color:#fff;background:var(--student-accent-dark);border-radius:12px;width:fit-content;padding:8px 11px;font-size:20px}.student-submission-review ul{background:#fff;border:1px solid #ead8ba;border-radius:13px;padding:6px 13px}.student-submission-review li{border-bottom:1px solid #eee2ce;min-height:42px}.student-submission-review li:last-child{border-bottom:0}.student-submission-review blockquote{border-left:4px solid var(--student-accent);background:#fff;border-radius:0 10px 10px 0;padding:12px 14px;line-height:1.6}.student-portfolio-control{border-top:1px solid #dec49b;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px 20px;padding-top:18px;display:grid}.student-portfolio-control>:is(h3,p){grid-column:1}.student-portfolio-control>div{flex-wrap:wrap;align-items:center;gap:9px;display:flex}.student-portfolio-control>div:first-of-type{grid-area:1/2/span 2}.student-portfolio-control select{min-height:44px;color:var(--student-ink);background:#fff;border:1px solid #bca171;border-radius:10px;padding:0 34px 0 11px;font-weight:750}.student-learning-surface--exam{max-width:1060px}.student-learning-surface .student-exam-preview,.student-learning-surface .student-exam-surface,.student-learning-surface .student-exam-player{border:1px solid var(--student-line);width:100%;max-width:none;color:var(--student-ink);background:#fff;border-radius:22px;margin:0;padding:clamp(20px,3.5vw,34px);box-shadow:0 5px #e4e4e4}.student-learning-surface .student-exam-preview{background:linear-gradient(145deg,#fff7e9,#fff 62%);align-content:center;justify-items:start;gap:14px;min-height:390px;display:grid}.student-learning-surface .student-exam-preview :is(h1,p){margin:0}.student-learning-surface .student-exam-preview h1{letter-spacing:-.055em;max-width:18ch;font-size:clamp(2rem,5vw,3.65rem);line-height:1.02}.student-learning-surface .student-exam-preview>p:not(.eyebrow){max-width:58ch;color:var(--student-muted);line-height:1.65}.student-learning-surface .student-exam-surface{min-height:390px}.student-learning-surface .student-exam-player{gap:20px;display:grid}.student-learning-surface .student-exam-player>header{border-bottom:1px solid var(--student-line);grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:20px;padding-bottom:20px;display:grid}.student-exam-player>header :is(h1,p){margin:0}.student-exam-player>header .eyebrow{margin-top:12px}.student-exam-player>header h1{letter-spacing:-.045em;margin-top:5px;font-size:clamp(1.8rem,4vw,3rem);line-height:1.05}.student-learning-surface .student-exam-timer{min-width:132px;min-height:56px;color:var(--student-accent-dark);background:var(--student-accent-soft);font-variant-numeric:tabular-nums;border:1.5px solid #dfb26f;border-radius:14px;justify-content:center;align-items:center;gap:8px;padding:10px 13px;font-size:1.35rem;font-weight:850;display:inline-flex;box-shadow:0 4px #dfb26f}.student-exam-timer svg{width:22px;height:22px}.student-learning-surface .student-exam-save-state{margin:0}.student-learning-surface .student-exam-result{background:#f5fbea;border:1px solid #b8d69f;border-radius:18px;justify-items:start;gap:10px;min-width:0;margin:0;padding:22px;display:grid}.student-exam-result-icon{color:#387b13;background:#e6f6d8;border-radius:14px;place-items:center;width:48px;height:48px;display:grid}.student-exam-result-icon svg{width:26px;height:26px}.student-learning-surface .student-exam-score output{color:#387b13;font-size:clamp(3rem,8vw,5rem);font-weight:850}.student-learning-surface .student-exam-answer-error{color:#81291f;background:#fff0ed;border:1px solid #e2a8a0;border-radius:15px;gap:9px;min-width:0;margin:0;padding:16px;display:grid}.student-exam-recovery-actions{flex-wrap:wrap;gap:9px;display:flex}.student-exam-recovery-actions button,.student-exam-answer-error>button{align-items:center;gap:7px;display:inline-flex}.student-exam-recovery-actions svg{width:18px;height:18px}.student-learning-surface .student-exam-questions{gap:14px;margin:0;padding:0;list-style:none;display:grid}.student-learning-surface .student-exam-questions>li{border:1px solid var(--student-line);background:#fff;border-radius:17px;min-width:0;padding:clamp(16px,2.7vw,23px);box-shadow:0 4px #e8e8e8}.student-exam-questions legend{margin-bottom:16px;font-size:16px;line-height:1.55}.student-learning-surface .student-exam-answer-options{gap:9px}.student-learning-surface .student-exam-answer-options label{background:#fff;border:1.5px solid #d4d4d4;border-radius:13px;min-width:0;min-height:50px;padding:11px 13px;font-weight:700}.student-learning-surface .student-exam-answer-options label:hover{background:#fafafa;border-color:#aaa}.student-learning-surface .student-exam-answer-options label:has(input:checked){border-color:var(--student-accent);color:#713d00;background:var(--student-accent-soft);box-shadow:0 3px #edc78f}.student-learning-surface .student-exam-answer-options input{width:20px;height:20px;accent-color:var(--student-accent-dark);flex:none}.student-learning-surface .student-exam-questions textarea{resize:vertical;width:100%;min-width:0;min-height:160px;color:var(--student-ink);font:inherit;background:#fcfcfc;border:1.5px solid #c8c8c8;border-radius:13px;padding:13px 14px;line-height:1.6}.student-learning-surface .student-exam-submit{color:#fff;background:var(--student-accent-dark);cursor:pointer;border:0;border-radius:13px;justify-content:center;align-items:center;gap:8px;width:fit-content;min-height:50px;margin:0 0 0 auto;padding:12px 20px;font-weight:850;display:inline-flex;box-shadow:0 4px #683700}.student-exam-submit svg{width:20px;height:20px}.student-exam-submit:active:not(:disabled){transform:translateY(2px);box-shadow:0 2px #683700}.student-exam-unanswered{gap:7px;max-height:min(280px,42vh);margin:12px 0 0;padding:0;list-style:none;display:grid;overflow-y:auto}.student-exam-unanswered li{color:#714b14;background:#fff7e8;border-left:3px solid #dfb26f;border-radius:0 8px 8px 0;padding:8px 10px;line-height:1.45}.student-learning-surface .student-exam-player>footer{border-top:1px solid var(--student-line);justify-content:space-between;align-items:center;gap:14px;min-width:0;padding-top:18px;display:flex}.student-exam-player>footer small{min-width:0;color:var(--student-muted)}.student-exam-player>footer code{vertical-align:bottom;text-overflow:ellipsis;white-space:nowrap;max-width:min(100%,320px);display:inline-block;overflow:hidden}.student-learning-surface--lesson{width:100%;max-width:none;padding:clamp(8px,1.5vw,18px)}.student-learning-surface .lesson-player{border:1px solid var(--student-line);width:100%;min-width:0;max-width:1180px;color:var(--student-ink);background:#f7f7f7;border-radius:22px;margin-inline:auto;box-shadow:0 5px #e2e2e2}.student-learning-surface .lesson-player-header{border-bottom:1px solid var(--student-line);background:#fff;border-radius:22px 22px 0 0;grid-template-columns:minmax(150px,auto) minmax(0,1fr) auto;align-items:center;gap:18px;padding:15px 18px;display:grid}.student-learning-surface .lesson-player-header>a,.student-learning-surface .lesson-player-footer a{color:#5b5b5b;background:#f5f5f5;border-radius:10px;align-items:center;gap:7px;min-height:44px;padding:8px 10px;font-size:12px;font-weight:800;text-decoration:none;display:inline-flex}.student-learning-surface .lesson-player-header>a svg{flex:none;width:17px;height:17px}.student-learning-surface .lesson-player-header :is(h1,p){margin:0}.student-learning-surface .lesson-player-header h1{letter-spacing:-.025em;margin-top:3px;font-size:clamp(1.15rem,2.3vw,1.65rem);line-height:1.2}.student-learning-surface .lesson-player-header>span{color:var(--student-accent-dark);background:var(--student-accent-soft);border:1px solid #e7c58c;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:850}.student-learning-surface .lesson-player-save-state{border-bottom:1px solid var(--student-line);color:#176535;background:#f1faf4;justify-content:flex-end;align-items:center;gap:7px;min-height:38px;padding:8px 18px;font-size:12px;font-weight:800;display:flex}.lesson-player-save-state svg{flex:none;width:17px;height:17px}.student-learning-surface .lesson-player-save-state.is-offline,.student-learning-surface .lesson-player-save-state.is-unsaved{color:#784500;background:#fff7e8}.student-learning-surface .lesson-player-save-state.is-conflict,.student-learning-surface .lesson-player-save-state.is-error,.student-learning-surface .lesson-player-save-state.is-incompatible{color:#8b251b;background:#fff0ed}.student-learning-surface .lesson-player-save-alert{color:#81291f;background:#fff0ed;border-bottom:1px solid #e1a59d;gap:8px;padding:14px 18px}.student-learning-surface .lesson-player-save-alert button{color:#7d261d;background:#fff;border:1px solid #b84e41;border-radius:10px;min-height:44px;padding:8px 12px}.student-learning-surface .lesson-player-progress{background:#e6e6e6;border-radius:0;height:16px}.student-learning-surface .lesson-player-progress span{background:var(--student-green);border-radius:0 999px 999px 0}.student-learning-surface .lesson-player-stage{background:radial-gradient(circle at 8% 8%,#ffedd09e,#0000 24%),#f7f7f7;place-items:center;min-width:0;min-height:560px;padding:clamp(22px,4vw,48px) clamp(112px,12vw,154px) clamp(22px,4vw,48px) clamp(20px,4vw,48px);display:grid;position:relative}.student-learning-surface .lesson-player-canvas{border:1px solid var(--student-line);background:#fff;border-radius:20px;width:min(100%,720px);min-width:0;min-height:440px;padding:clamp(20px,4vw,42px);box-shadow:0 5px #dedede}.student-learning-surface .lesson-player-step{gap:18px;min-width:0;min-height:350px}.student-learning-surface .lesson-player-step h2,.student-learning-surface .lesson-player-step-guard h2{letter-spacing:-.045em;max-width:20ch;font-size:clamp(1.75rem,4.5vw,3rem);line-height:1.08}.student-learning-surface .lesson-player-lead{color:#5f5f5f;max-width:62ch;font-size:1rem;line-height:1.7}.student-learning-surface .lesson-player-note-grid article,.student-learning-surface .lesson-player-scenario-card,.student-learning-surface .lesson-player-code-note{background:#fff8eb;border-color:#e2ca9f}.student-learning-surface .lesson-player-flip-grid button,.student-learning-surface .lesson-player-choice-list button,.student-learning-surface .lesson-interaction-hotspots button{color:#4d310b;cursor:pointer;background:#fff;border:1.5px solid #d1aa6a;border-radius:13px;min-width:0;min-height:52px;padding:12px 14px;box-shadow:0 3px #e5cca2}.student-learning-surface .lesson-player-flip-grid button.is-flipped,.student-learning-surface .lesson-interaction-segment button[aria-pressed=true],.student-learning-surface .lesson-interaction-ratings button[aria-pressed=true]{border-color:var(--student-accent-dark);color:#fff;background:var(--student-accent-dark);box-shadow:0 3px #633500}.student-learning-surface .lesson-interaction-options label,.student-learning-surface .lesson-interaction-fields 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