/* VUB visual workshop: large task models, varied page rhythm, deliberate controls. */
.lesson{background:#e8eef3}.lesson .topbar{background:#102c4b}.lesson .deck-layout{grid-template-columns:270px minmax(0,1fr)}.lesson .sidebar{background:#f8fafc;color:#1b365d;border-right:1px solid #b8c8d5}.lesson .sidebar a{color:#1b365d}.lesson .sidebar h2{font-size:20px;line-height:1.4;margin:10px 0 24px}.lesson .sidebar .slide-link{color:#324d68;padding:12px;font-weight:500;border-radius:8px}.lesson .sidebar .slide-link:hover{background:#e2ebf1}.lesson .sidebar .slide-link[aria-current=true]{background:#1b365d;color:#fff;box-shadow:0 5px 12px #102c4b20}.lesson .sidebar .slide-link:focus-visible{outline-color:#f3d66b}.lesson .resources{border-color:#b8c8d5}.lesson .deck-main{padding:24px clamp(20px,3vw,48px) 80px;max-width:1600px}.lesson .deck-toolbar{color:#34506b}.lesson progress{height:5px;margin:20px 0 0}.lesson .slide{border-radius:16px;box-shadow:0 12px 32px #16334b0c;padding:clamp(24px,3vw,48px);margin-top:24px;min-height:560px;position:relative}.lesson .slide h2{font-size:clamp(36px,3.7vw,58px);line-height:1.12;letter-spacing:-.025em;max-width:23ch;text-wrap:balance;margin-bottom:28px}.lesson .slide>p{color:#304a62;max-width:56ch;line-height:1.55}.lesson .slide h3{font-size:36px;line-height:1.2;margin:0;letter-spacing:-.02em}.lesson .slide h4{font-size:32px;line-height:1.25;margin:0 0 20px}.lesson .slide-kind-objectives{background:#102c4b;color:white;overflow:hidden}.lesson .slide-kind-objectives h2,.lesson .slide-kind-objectives>p{color:white}.lesson .slide-kind-objectives h2{font-size:clamp(40px,4.5vw,68px);max-width:19ch}.lesson .slide-kind-objectives ul{padding:24px 0 0;border-top:1px solid #64788e;list-style:none}.lesson .slide-kind-objectives li{margin:18px 0;display:flex;gap:18px;color:#e3edf5}.lesson .slide-kind-objectives .lesson-art{float:right;width:200px;height:150px;margin:0 0 24px 30px;color:#f0d57c}.lesson .slide-kind-discussion{background:#f6ecd6}.lesson .slide-kind-discussion h2{max-width:17ch}.lesson .slide-kind-check{background:#eaf3f1}.lesson .slide-kind-check .check-options button{background:white;border:1px solid #91b3ad;padding:20px 24px;box-shadow:none;transition:transform .2s}.lesson .slide-kind-check .check-options button:hover{background:#d7ebe5;transform:translateX(4px)}.lesson .slide-kind-check .check-options button[aria-pressed=true]{background:#163e38;color:white}.lesson .slide-kind-video{background:#102c4b;color:white}.lesson .slide-kind-video h2,.lesson .slide-kind-video>p,.lesson .slide-kind-video a{color:white}.lesson .slide-kind-video video{border-radius:12px;margin:12px 0}.lesson .slide-kind-complete{background:#e5efe9}.lesson .bottom-nav{padding:16px 0;border-top:1px solid #b8c8d5;position:sticky;bottom:0;z-index:5;background:#e8eef3}.lesson .bottom-nav button{min-width:150px}.lesson .step-list li{gap:24px;padding:22px 0;align-items:baseline}.lesson .step-list li:before{font-size:40px;min-width:42px}.lesson .flip-front{background:#edf3f8;border-color:#a9bfd0}.lesson .flip:hover .flip-front{background:#2c4a7c}.lesson .flip-back{background:#173c61}.workshop{margin-top:36px;padding-top:30px;border-top:1px solid #b8c8d5;min-width:0}.work-heading{display:flex;gap:20px;align-items:baseline;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap}.simulation-label{font-size:17px;font-weight:600;color:#526a80;flex:none}.work-window{background:#f7f9fb;border-radius:12px;overflow:hidden;border:1px solid #adc1d2;min-width:0}.window-bar{background:#e4edf4;color:#244360;display:flex;align-items:center;gap:18px;padding:16px 24px;font-size:18px;font-weight:600;border-bottom:1px solid #adc1d2}.window-bar svg{fill:#71899f;flex:none}.window-content{padding:28px;min-width:0}.workshop .work-controls{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0}.workshop button{background:#fff;color:#1b365d;border:1px solid #7c99b1;border-radius:8px;font-size:max(32px,var(--fs-slide,32px));line-height:1.3;min-height:54px;padding:12px 18px;text-align:left;transition:box-shadow .18s}.workshop button:hover{background:#e3edf5;box-shadow:0 4px 12px #1b365d18}.workshop button[aria-pressed=true]{background:#1b365d;color:white;border-color:#1b365d}.workshop .work-outcome{padding:24px 0 0;margin:0;color:#174c46;line-height:1.5;border-top:1px solid #b8cfc9}.workshop input[type=search],.workshop input:not([type]){width:100%;margin-top:12px;box-sizing:border-box}.workshop :is(code,pre,td,th,dd,dt,.file-object,.result-row,.example-link,.calendar-event,.calendar-day>strong,.signal-path,.backup-copy,.formula-bar,.protected-file,.mock-search){font-size:max(32px,var(--fs-slide,32px));line-height:1.4}.workshop pre{white-space:pre-wrap;overflow-wrap:anywhere;min-width:0;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.browser-tools{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-bottom:1px solid #b8c8d5;padding-bottom:16px;font-size:24px}.zoom-page{padding:30px 0 12px;--demo-zoom:1}.lesson .zoom-page h4{font-size:calc(max(32px,var(--fs-slide,32px))*var(--demo-zoom));transition:font-size .2s}.lesson .zoom-page p{font-size:calc(max(32px,var(--fs-slide,32px))*var(--demo-zoom))!important;transition:font-size .2s}.example-link{display:inline-block;color:#174e78;border-bottom:2px solid #174e78}.signal-path{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.signal-path>div{background:#e3edf5;padding:20px;border-radius:8px}.signal-path svg{width:80px;fill:none;stroke:#0f655f;stroke-width:3}.sound-meter{height:72px;display:flex;align-items:center;gap:9px}.sound-meter i{width:22px;height:65px;transform:scaleY(.12);background:#9db5c8;border-radius:3px;transition:transform .3s}.sound-running .sound-meter i{background:#0f655f;transform:scaleY(.6)}.sound-running .sound-meter i:nth-child(even){transform:scaleY(1)}.calendar-surface{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.calendar-day{min-width:0;padding:16px 8px;min-height:230px}.calendar-day>strong{display:block;margin-bottom:24px}.calendar-event{background:#d5e7f5;color:#173c61;padding:18px 14px;border-radius:8px;overflow-wrap:anywhere}.calendar-event span{display:block;margin-top:12px;font-size:24px}.gold-event{background:#f0e3bb;color:#594213}.calendar-surface[data-view=day]{grid-template-columns:1fr}.calendar-surface[data-view=day] .calendar-day:not(:first-child){display:none}.calendar-surface[data-view=list]{display:block}.calendar-surface[data-view=list] .calendar-day{display:grid;grid-template-columns:1fr 2fr;gap:20px;min-height:0;border-bottom:1px solid #bdcbd5}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:28px}.comparison>div{padding:24px;background:#edf3f8;border-radius:12px;min-width:0}.sync-map{display:grid;grid-template-columns:1fr 50px 1fr;align-items:center;gap:16px}.sync-map>div{min-width:0}.sync-arrow{font-size:42px;color:#0f655f}.file-object{background:white;padding:24px 16px;border-radius:8px;border:1px solid #adc1d2;overflow-wrap:anywhere;transition:background .2s}.file-object.deleted{background:#f7e5e5;color:#893737;text-decoration:line-through}.backup-copy{background:#e0ece5;display:flex;flex-direction:column;gap:12px;padding:24px;margin-top:28px;border-radius:8px}.source-result dl{display:grid;grid-template-columns:1fr 2fr;gap:14px;padding-top:18px;border-top:1px solid #adc1d2}.source-result dd{margin:0}.source-result dt{font-weight:700}.document-page{background:white;padding:32px;box-shadow:0 10px 24px #1b365d12;font-size:32px;line-height:1.5}.document-line{margin:18px 0}.document-page.structured{counter-reset:docstep}.document-page.structured .document-title{font-weight:800;font-size:40px;color:#1b365d;margin-bottom:30px}.document-page.structured .document-line{counter-increment:docstep;display:flex;gap:14px}.document-page.structured .document-line:before{content:counter(docstep) '.';color:#0f655f;font-weight:700}.formula-bar{display:flex;gap:24px;background:white;padding:16px;margin-bottom:20px;flex-wrap:wrap}.formula-bar>span{color:#0f655f;font-weight:700}.demo-sheet{width:100%;border-collapse:collapse;table-layout:fixed}.demo-sheet td,.demo-sheet th{padding:14px;border:1px solid #9db3c3;text-align:left}.demo-sheet thead th{background:#dce8f1}.demo-sheet .sum-row{background:#d5e9e1;font-weight:800}.export-preview{display:flex;gap:28px;align-items:center;flex-wrap:wrap}.file-extension{font-size:42px;font-weight:800;padding:36px 20px;background:#1b365d;color:#f4d781;border-radius:12px}.export-preview>div:last-child{flex:1;min-width:200px}.comment-thread{display:flex;align-items:flex-start;gap:18px;margin-top:26px;padding:24px 0;border-top:1px solid #adc1d2}.comment-thread strong{font-size:24px}.comment-thread p{margin-bottom:0}.avatar{background:#dce9f3;color:#1b365d;display:flex;align-items:center;justify-content:center;border-radius:50%;width:58px;height:58px;font-size:28px;flex:none}.meeting-stage{display:grid;grid-template-columns:1fr 1fr;gap:20px}.meeting-stage>div{background:#173c61;color:white;border-radius:12px;padding:28px;display:flex;align-items:center;flex-direction:column;gap:26px;text-align:center;font-size:24px}.participant-mark{font-size:36px;padding:32px 16px}.message-preview .work-controls{margin:6px 0 20px}.message-preview button{background:#fff6e4;border-color:#a08340}.message-preview button.inspected{background:#ead7a7;color:#1b365d}.permission-request svg{width:80px;height:64px;fill:none;stroke:#1b365d;stroke-width:4;margin-bottom:22px}.protected-file{background:white;padding:26px}.protected-file pre{color:#1b365d}.code-workspace{display:grid;grid-template-columns:1fr 1fr;gap:24px}.code-workspace pre,.prompt-preview{background:#102c4b;color:#e3edf5;padding:26px;border-radius:12px;margin:0;min-width:0;font-size:28px}.mini-app{background:#eef3f7;padding:26px;min-width:0}.mini-app[data-layer=css]{background:#deeee7}.mini-app[data-layer=js] .result-row:last-child{display:none}.mock-search{display:block;background:white;padding:12px;border:1px solid #adc1d2}.result-row{padding:20px 0;border-bottom:1px solid #adc1d2}.resource-results{margin-top:20px;font-size:32px}.prompt-checks{margin:24px 0;display:grid;gap:18px}.prompt-checks label{display:flex;align-items:baseline;gap:14px}.prompt-checks input{flex:none;width:24px;height:24px}.workshop .prompt-preview{margin:24px 0}.workshop input:focus-visible{outline:4px solid #925400;outline-offset:3px}
@media(max-width:1100px){.lesson .deck-layout{grid-template-columns:230px minmax(0,1fr)}.calendar-surface{grid-template-columns:1fr}.calendar-day{min-height:0}.calendar-day>strong{margin-bottom:14px}.comparison,.code-workspace{grid-template-columns:1fr}.sync-map{grid-template-columns:1fr}.sync-arrow{transform:rotate(90deg);justify-self:center}.lesson .deck-main{padding:20px}.window-content{padding:20px}}
@media(max-width:760px){.lesson .deck-layout{display:block}.lesson .slide{padding:24px 20px;min-height:0}.lesson .deck-main{padding:16px 12px 80px}.lesson .slide h2{font-size:36px}.lesson .slide-kind-objectives h2{font-size:42px}.lesson .slide-kind-objectives .lesson-art{float:none;margin:0 0 24px;width:140px;height:100px}.work-heading h3{font-size:32px}.window-bar{padding:14px;font-size:16px}.window-content{padding:16px}.workshop button{width:100%;font-size:32px}.calendar-surface[data-view=list] .calendar-day{display:block}.source-result dl{display:block}.source-result dd{margin:10px 0 22px}.meeting-stage{grid-template-columns:1fr}.document-page,.protected-file{padding:18px}.workshop{margin-top:28px}.workshop .work-controls{gap:10px}.workshop .prompt-preview{padding:18px;font-size:25px}.demo-sheet td,.demo-sheet th{padding:10px;overflow-wrap:anywhere}.lesson .bottom-nav button{min-width:0}.browser-tools{display:block}.lesson .sidebar{border:0}.workshop .export-preview>div:last-child{min-width:0}.comparison>div{padding:18px}}
@media(prefers-reduced-motion:reduce){.workshop *,.lesson .check-options button{transition:none!important;animation:none!important}}
@media print{.workshop{break-inside:avoid}.workshop .work-controls,.workshop button,.simulation-label,.lesson-art{display:none!important}.work-window{border:1px solid #888}.lesson .slide{box-shadow:none;background:white;color:black}.lesson .slide h2,.lesson .slide>p,.lesson .slide-kind-objectives li{color:black}.lesson .deck-layout{display:block}.comparison,.code-workspace,.sync-map{display:block}.calendar-surface{display:block}.workshop pre{white-space:pre-wrap}.work-outcome{color:black!important}}

/* Task-first composition; a lesson opens with the object the learner can use. */
.lesson .has-workshop .workshop{margin-top:0;padding-top:0;border:0}
.lesson .has-workshop .work-heading{margin:0 0 16px;justify-content:flex-end}
.lesson .has-workshop .work-heading h3{display:none}
.lesson .concept-note{border-top:1px solid #b8c8d5;margin-top:28px;padding-top:22px}
.lesson .concept-note summary{color:#1b365d;cursor:pointer;font-weight:700;font-size:32px;line-height:1.4}
.lesson .concept-note p{color:#304a62}
.lesson .slide-kind-objectives.has-workshop{background:white;color:#16344e;border-top:8px solid #1b365d}
.lesson .slide-kind-objectives.has-workshop h2{color:#1b365d;font-size:clamp(36px,3.7vw,58px);max-width:25ch}
.lesson .slide-kind-objectives.has-workshop li{color:#16344e}
.lesson .deck-toolbar .vub-textsize-fab{position:static;box-shadow:none;z-index:auto;background:#1b365d;flex:none;margin:0;border:0}
.lesson .deck-toolbar .vub-textsize-fab .lab{position:static;width:auto;height:auto;margin:0;clip:auto;overflow:visible;font-size:16px}
.month-map{display:none}.calendar-surface[data-view=month]{display:block;overflow-x:auto}
.calendar-surface[data-view=month]>.calendar-day{display:none}
.calendar-surface[data-view=month]>.month-map{display:grid;grid-template-columns:repeat(7,minmax(180px,1fr));min-width:1260px;gap:1px;background:#9db3c3;border:1px solid #9db3c3}
.month-map>strong,.month-cell{background:white;padding:12px;font-size:32px;line-height:1.2;min-height:65px}
.month-map>strong{background:#dce8f1}.month-cell b{display:block;font-size:32px;font-weight:500;margin-top:14px;color:#174c46;overflow-wrap:normal}.month-cell:has(b){background:#deeee5}
.calendar-surface[data-view=list] .calendar-day{display:block;padding:14px 0;border-bottom:1px solid #9db3c3}
.calendar-surface[data-view=list] .calendar-day>strong{font-size:32px;margin-bottom:10px}
.calendar-surface[data-view=list] .calendar-event{background:transparent;padding:0;border-radius:0}
.calendar-surface[data-view=list] .calendar-event span{display:inline;margin-left:16px}
.workshop .calendar-event span,.workshop .prompt-preview{font-size:max(32px,var(--fs-slide,32px));line-height:1.4}
.demo-sheet th:first-child{width:64px;background:#e6eef4;text-align:center}
.demo-sheet .formula-cell{background:#dfede7;border-left:3px solid #0f655f;border-right:3px solid #0f655f}
.demo-sheet tr:nth-child(2) .formula-cell{border-top:3px solid #0f655f}
.demo-sheet tr:nth-child(4) .formula-cell{border-bottom:3px solid #0f655f}
.demo-sheet [data-sum]{background:#c4dfce;border:3px solid #0f655f}
@media(max-width:760px){.lesson .deck-toolbar{gap:14px}.lesson .deck-toolbar>p{width:100%}.lesson .deck-toolbar .vub-textsize-fab{margin-bottom:0}.calendar-surface[data-view=week]{display:grid;grid-template-columns:repeat(3,200px);overflow-x:auto;max-width:100%;border-bottom:1px solid #9db3c3}.calendar-surface[data-view=week] .calendar-day{min-height:300px}.lesson .has-workshop .window-content{padding:14px}.lesson .workshop .demo-sheet th:first-child{width:44px}.demo-sheet td,.demo-sheet th{padding:8px}.lesson .has-workshop h2{margin-bottom:18px}.lesson .workshop .prompt-preview{font-size:max(32px,var(--fs-slide,32px))}}
@media print{.concept-note>*,.concept-note:not([open])>*{display:block}.concept-note summary{display:none!important}.lesson .deck-toolbar{display:none}.calendar-surface[data-view=month]>.month-map{min-width:0}.month-map>strong,.month-cell,.month-cell b{font-size:18pt}}