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text.hydro-accent{fill:var(--accent-ink);font-weight:600}.hydro-liquid{fill:var(--liquid);stroke:var(--liquid-edge);stroke-width:1px}.hydro-wall{fill:none;stroke:var(--ink);stroke-width:2px}.hydro-axis{fill:none;stroke:var(--line-strong);stroke-width:1px}.hydro-grid{fill:none;stroke:var(--line);stroke-width:1px}.hydro-dash{fill:none;stroke:var(--muted);stroke-width:1px;stroke-dasharray:4 3}.hydro-line{fill:none;stroke:var(--accent);stroke-width:2.5px}.hydro-accent-fill{fill:var(--accent)}.hydro-block{fill:var(--accent-soft);stroke:var(--accent-ink);stroke-width:1.5px}.hydro-ink{fill:none;stroke:var(--ink);stroke-width:2px}.hydro-ink-fill{fill:var(--ink)}.hydro-controls{gap:var(--space-1);min-width:0;display:grid}.hydro-row{gap:0 var(--space-2);grid-template-columns:minmax(0,1fr) auto;align-items:center;min-width:0;display:grid}.hydro-row label{color:var(--muted);font:600 .8125rem var(--font-display);grid-column:1/-1}.hydro-row select{min-width:0;padding:var(--space-1) var(--space-2);border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink);font:inherit;grid-column:1/-1}.hydro-row input[type=range]{width:100%;accent-color:var(--accent);margin:0}.hydro-row output{text-align:right;min-width:4em;font:.8125rem var(--scene-mono);font-variant-numeric:tabular-nums}.hydro-switch{align-items:center;gap:var(--space-2);cursor:pointer;font-size:.875rem;display:inline-flex}.hydro-switch input{width:1.25rem;accent-color:var(--accent);margin:0}.scene[data-scene=hydro-column] input,.scene[data-scene=hydro-column] select,.scene[data-scene=hydro-column] button{min-height:40px}.hydro-readout{padding:6px var(--space-2);border-radius:var(--radius-sm);background:var(--chip);font:.8125rem/1.5 var(--scene-mono);font-variant-numeric:tabular-nums;overflow-wrap:anywhere;margin:0}@media (width>=1024px){.hydro-row{grid-template-columns:minmax(0,8em) minmax(0,1fr) auto}.hydro-row label{grid-column:auto}.hydro-row select{grid-column:2/-1}}.exercise-wrap{gap:var(--space-2);flex-direction:column;min-width:0;display:flex}.exercise-wrap+.exercise-wrap{padding-top:var(--space-3);border-top:1px solid var(--line)}.test-head .chip{white-space:nowrap}.solution-locked .solution-title{color:var(--muted);font-weight:600}.mistakes-ghost{min-height:2.5rem;padding:0 var(--space-1);color:var(--accent-ink);font:600 1rem var(--font-display);align-items:center;text-decoration:none;display:inline-flex}.mistakes-ghost:hover{text-decoration:underline}.mistakes-intro{margin-block:var(--space-1)}.mistakes-crumb{align-items:center;gap:0 var(--space-1);flex-wrap:wrap;min-height:2.5rem;display:flex}.mistakes-crumb a{color:var(--accent-ink)}.mistakes-list,.mistakes-lines{margin:0;padding:0;list-style:none}.mistakes-row{gap:var(--space-2);min-height:2.5rem;padding-block:var(--space-2);grid-template-columns:minmax(0,1fr) auto;align-items:center;display:grid}.mistakes-row+.mistakes-row{border-top:1px solid var(--line)}.mistakes-row-text{gap:var(--space-1);overflow-wrap:anywhere;flex-direction:column;min-width:0;display:flex}.mistakes-prompt{font-size:1.0625rem}.btn.mistakes-retry{min-height:2.5rem}.mistakes-chips{margin-top:var(--space-1)}.chip.mistakes-chip-wrong{background:var(--bad-soft);color:var(--bad-ink);cursor:default;border-color:#0000}.chip.mistakes-chip-solution{background:var(--warn-soft);color:var(--warn-ink);cursor:default;border-color:#0000}.mistakes-line{-webkit-line-clamp:2;line-clamp:2;overflow-wrap:anywhere;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.mistakes-card-head{gap:var(--space-2);flex-wrap:wrap;justify-content:space-between;align-items:center;display:flex}.mistakes-card-head .card-title{margin:0}.mistakes-back{align-self:flex-start}.mascot{background:var(--accent-soft);width:4rem;height:4rem;color:var(--accent);border-radius:1rem;flex:none;place-items:center;display:grid}.mascot svg{width:100%;height:100%;display:block}.mascot .mascot-eye{fill:var(--paper)}.mascot-empty{gap:var(--space-3);align-items:center;display:flex}.mascot-empty-lines{min-width:0}.mascot-empty-lines .card-line{margin:0}.mascot-title{gap:var(--space-3);align-items:center;display:flex}.mascot-title .login-title{margin:0}.bank-page{flex-direction:column;gap:10px;display:flex}.bank-layout{gap:var(--space-3);align-items:start;display:grid}.bank-layout.with-tray{grid-template-columns:minmax(0,1fr) 17.5rem}.bank-main{gap:var(--space-2);flex-direction:column;min-width:0;display:flex}.bank-total{font-weight:400}.bank-filters{gap:var(--space-2);flex-direction:column;display:flex}.bank-list{margin:0;padding:0;list-style:none}.bank-row{gap:var(--space-2);padding:var(--space-2) 0;border-bottom:1px solid var(--line);cursor:pointer;grid-template-columns:1.5rem minmax(0,1fr);align-items:start;display:grid}.bank-row input{width:1.125rem;height:1.125rem;accent-color:var(--accent);margin:.1875rem 0 0}.bank-row-text{overflow-wrap:anywhere;flex-direction:column;min-width:0;display:flex}.bank-meta{color:var(--muted);font:.8125rem JetBrains Mono,ui-monospace,Consolas,monospace}.tray{top:var(--space-3);gap:var(--space-2);flex-direction:column;display:flex;position:sticky}.bank-tray-form{gap:var(--space-2);flex-direction:column;display:flex}.bank-group{gap:var(--space-1);flex-direction:column;display:flex}.bank-label{color:var(--muted);font:600 .875rem var(--font-display)}.bank-seg{display:flex}.bank-seg button{flex:none}.bank-check{gap:var(--space-1);align-items:center;font-size:.875rem;display:flex}.bank-check input{accent-color:var(--accent)}.btn.bank-close{color:var(--accent-ink);background:0 0;border-color:#0000}.sticky-bar,.sheet{bottom:var(--bank-tabs-height,0px);z-index:2;margin-inline:calc(-1 * var(--space-3));background:var(--paper);position:sticky}.sticky-bar{gap:var(--space-2);padding:var(--space-2) var(--space-3);border-top:1px solid var(--line);justify-content:space-between;align-items:center;display:flex}.sheet{gap:var(--space-2);padding:10px var(--space-3) var(--space-3);border:1px solid var(--line-strong);box-shadow:var(--shadow);border-bottom:0;border-radius:.875rem .875rem 0 0;flex-direction:column;display:flex}.sheet[hidden]{display:none}.sheet-grab{background:var(--line-strong);border-radius:2px;width:2.25rem;height:.25rem;margin:0 auto 2px}.bank-head-actions{gap:var(--space-2);flex-wrap:wrap;display:flex}.bank-head-actions .btn{align-items:center;text-decoration:none;display:inline-flex}.bank-row-tools{gap:var(--space-2);margin-top:var(--space-1);flex-wrap:wrap;align-items:center;display:flex}.bank-origin{font-size:.75rem}.bank-edit{color:var(--accent-ink);font:600 .875rem var(--font-display)}.btn.draft-toggle{color:var(--accent-ink);background:0 0;border-color:#0000}.btn.draft-toggle[aria-expanded=true]{background:var(--accent-soft)}.draft-panel{gap:var(--space-2);min-width:0;padding:var(--space-3);border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);flex-direction:column;flex:1 0 100%;display:flex}.draft-fields{gap:var(--space-1);flex-direction:column;min-width:0;display:flex}.draft-pages{max-width:10rem}.btn.draft-run{align-self:flex-start}.draft-line{margin:0;font-size:.875rem}.editor-page{gap:var(--space-3);flex-direction:column;display:flex}.editor-back{color:var(--accent-ink);font:600 1rem var(--font-display);text-decoration:none}.editor-layout{gap:var(--space-4);align-items:start;display:grid}.editor-layout.wide{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.editor-tabs{align-self:flex-start}.editor-tabs button[aria-selected=true]{background:var(--accent);color:var(--on-accent)}.editor-form,.editor-fields{gap:var(--space-3);flex-direction:column;min-width:0;display:flex}.editor-fields{border:0;margin:0;padding:0}.editor-head-line{gap:var(--space-2);flex-wrap:wrap;align-items:center;margin:0;display:flex}.editor-kicker{color:var(--muted);font:600 .75rem var(--font-display);letter-spacing:.06em;text-transform:uppercase;margin:0}.editor-chip{text-transform:uppercase;font-size:.75rem}.editor-field{gap:var(--space-1);flex-direction:column;min-width:0;display:flex}.editor-group{gap:var(--space-2);border:0;margin:0;padding:0}.editor-label{color:var(--muted);font:600 .875rem var(--font-display);padding:0}.editor-input{width:100%;min-width:0;min-height:44px;padding:var(--space-2) var(--space-3);border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink);font:inherit;font-size:1rem}.editor-input:disabled{background:var(--chip);color:var(--muted)}textarea.editor-input{resize:vertical}.editor-mono{font-family:JetBrains Mono,ui-monospace,Consolas,monospace;font-size:.875rem}.editor-types{flex-wrap:wrap;display:flex}.editor-types button{flex:auto}.editor-item,.editor-choice{gap:var(--space-1);flex-direction:column;display:flex}.editor-choice{padding:var(--space-2);border:1px solid var(--line);border-radius:var(--radius-sm)}.editor-item-row,.editor-choice-head{gap:var(--space-2);align-items:center;display:flex}.editor-letter{min-width:1.5rem;color:var(--muted);font:600 1rem var(--font-display);text-align:center;flex:none}.editor-correct{gap:var(--space-1);color:var(--muted);flex:none;align-items:center;font-size:.875rem;display:inline-flex}.editor-correct input{accent-color:var(--accent)}.editor-remove{padding:var(--space-1) var(--space-2);color:var(--muted);cursor:pointer;background:0 0;border:0;flex:none;align-self:flex-end;font-size:.875rem;text-decoration:underline}.editor-add{align-self:flex-start}.editor-source{gap:var(--space-2);display:flex}.editor-source .editor-input{flex:10rem}.editor-source .editor-page-input{flex:0 6rem}.editor-error{font-size:.875rem}.editor-actions{gap:var(--space-2);flex-wrap:wrap;align-items:center;display:flex}.editor-export{align-items:center;text-decoration:none;display:inline-flex}.editor-preview{gap:var(--space-2);overflow-wrap:anywhere;flex-direction:column;min-width:0;display:flex}.editor-preview-kind{color:var(--muted);font:600 1rem var(--font-display);margin:0}.editor-preview-prompt{margin:0}.editor-preview-choices{gap:var(--space-2);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.editor-preview-choices li{padding:var(--space-2) var(--space-3);border:1px solid var(--line);border-radius:var(--radius-sm)}.editor-preview-line{margin:0}.editor-number{max-width:16rem}.editor-preview-answer{gap:var(--space-1);flex-direction:column;margin:0;display:flex}.editor-preview-blank{border:1px solid var(--line);border-radius:var(--radius-sm);min-height:44px;display:block}.editor-preview-rubric{padding-left:var(--space-3);border-left:3px solid var(--line)}.editor-preview-rubric-title{font:600 .9375rem var(--font-display);display:block}.editor-preview-rubric-text{margin:var(--space-1) 0 0}.tex-error{color:var(--bad);font-size:.875rem}.editor-fields:disabled .seg button:disabled{text-decoration:none}.course-switcher{margin-bottom:var(--space-2)}.home-card-head{gap:var(--space-2);flex-wrap:wrap;align-items:center;display:flex}.home-card-head .card-title,.home-card-head .card-line{margin:0}.home-current-title{font-size:1rem}.sessions-form{gap:var(--space-2);flex-direction:column;display:flex}.sessions-form .card-title{margin:0}.sessions-form .field label{color:var(--muted)}.sessions-form textarea{width:100%;min-width:0;padding:var(--space-2) var(--space-3);border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink);font:inherit;resize:vertical;line-height:1.6}.sessions-list{margin:0;padding:0;list-style:none}.sessions-entry{gap:var(--space-1);width:100%;padding:var(--space-2) 0;color:var(--ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;flex-direction:column;display:flex}.sessions-day{font-size:1.0625rem}.sessions-text{overflow-wrap:anywhere;font-size:.9375rem}.sessions-note-text{overflow-wrap:anywhere}.print-controls{gap:var(--space-2);flex-wrap:wrap;align-items:center;display:flex}.print-sheet{width:100%;max-width:44rem;margin:var(--space-2) auto 0;padding:var(--space-4);border:1px solid var(--line);background:var(--paper);color:var(--ink)}@media (width>=640px){.print-sheet{padding:28px 32px}}.print-head{gap:var(--space-4);justify-content:space-between;align-items:baseline;display:flex}.print-heading,.print-who{font:700 1.25rem/1.3 var(--font-display);margin:0}.print-who{text-align:right;flex-shrink:0;max-width:40%}.print-version{margin:var(--space-2) 0 0;color:var(--muted)}.print-blocks{margin:var(--space-2) 0 0;padding:0;list-style:none}.print-block{padding:var(--space-4) 0;border-bottom:1px solid var(--line);break-inside:avoid}.print-break{break-before:page}.print-prompt{margin:0}.print-key{margin:var(--space-1) 0 0;color:var(--ok)}.print-box{margin-top:var(--space-2);padding:var(--space-2) var(--space-3);border:1px solid var(--line-strong);border-radius:var(--radius-sm)}.print-box.print-options{gap:var(--space-2) var(--space-4);border-color:#0000;flex-wrap:wrap;padding-inline:0;display:flex}.print-option{gap:var(--space-2);align-items:center;display:inline-flex}.print-circle{border:1.5px solid var(--ink);border-radius:50%;flex-shrink:0;width:1rem;height:1rem}.print-numeric{justify-content:flex-end;align-items:flex-end;max-width:18rem;min-height:2.75rem;display:flex}.print-unit{color:var(--muted)}.print-lines{display:grid}.print-line{border-bottom:1px dotted var(--line-strong);height:1.75rem}.print-footer{margin:var(--space-4) 0 0;color:var(--muted);font-size:.9375rem}@media print{:root .shell-header,:root .shell-nav-bottom,:root .print-actions{display:none}:root,:root body{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--ink);background:var(--paper)}:root .shell-main{padding:0}:root .print-sheet{border:0;max-width:none;margin:0;padding:0}}.photo-pane{gap:var(--space-3);flex-direction:column;display:flex}.photo-meta{margin:0}.photo-pages{gap:var(--space-3);flex-direction:column;display:flex}.photo-page{border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);cursor:zoom-in;width:100%;padding:0;display:block;overflow:hidden}@media (width>=48rem){.photo-page{max-width:56%}}.photo-page img{width:100%;height:auto;display:block}.rubric{padding-left:var(--space-3);border-left:3px solid var(--line)}.rubric-title{font:600 .9375rem var(--font-display);display:block}.rubric-text{margin:var(--space-1) 0 0;overflow-wrap:anywhere}.chip.ai{background:var(--warn-soft);color:var(--warn-ink);cursor:default;border-color:#0000}.suggestion-row{align-items:flex-start;gap:var(--space-1);flex-direction:column;display:flex}@media (width>=48rem){.suggestion-row{align-items:center;gap:var(--space-2) var(--space-3);flex-flow:wrap}}.suggestion-rationale{overflow-wrap:anywhere}.suggestion-pending{margin:0}.photo-grade-fields{gap:var(--space-2) var(--space-3);flex-wrap:wrap;display:flex}.photo-score{flex:0 0 8rem}.photo-comment{flex:14rem;min-width:0}.field-error{color:var(--bad);margin:0;font-size:.875rem}.photo-actions{align-items:center;gap:var(--space-2) var(--space-4);flex-wrap:wrap;display:flex}.link-button{min-height:2.5rem;color:var(--accent-ink);font:600 .9375rem var(--font-display);cursor:pointer;background:0 0;border:0;padding:0}.link-button:disabled{opacity:.6;cursor:default}.lightbox{z-index:50;padding:var(--space-4);background:var(--paper);overscroll-behavior:contain;display:flex;position:fixed;inset:0;overflow:auto}.lightbox-image{border:1px solid var(--line-strong);max-width:none;box-shadow:var(--shadow);flex:none;margin:auto;display:block}.lightbox-close{top:var(--space-3);right:var(--space-3);z-index:51;border:1px solid var(--line-strong);background:var(--paper);width:2.75rem;height:2.75rem;color:var(--ink);cursor:pointer;border-radius:50%;font-size:1.5rem;line-height:1;position:fixed}.inbox-chips{margin-bottom:var(--space-2)}.inbox-line{min-height:2.5rem;padding:var(--space-1) 0;overflow-wrap:anywhere}.inbox-list>li{border-bottom:1px solid var(--line)}.inbox-line:has(.inbox-row[aria-expanded=true]){background:var(--accent-soft)}.inbox-line .inbox-row{width:auto;min-height:0;padding:0;display:inline}.inbox-initial{color:var(--accent-ink);font-weight:700}.inbox-tail{font-size:.875rem}.settings{gap:var(--space-3);flex-direction:column;display:flex}.settings-card{padding:var(--space-3);flex-direction:column;display:flex}.setting{gap:var(--space-2);padding:var(--space-3) 0;border-bottom:1px solid var(--line);flex-direction:column;display:flex}.setting:first-child{padding-top:0}.setting-label{color:var(--muted);font:600 .875rem var(--font-display)}.setting .seg{display:flex}.swatches{gap:var(--space-2);display:flex}.swatch{cursor:pointer;border:3px solid #0000;border-radius:50%;width:2rem;height:2rem;padding:0}.swatch[aria-pressed=true]{border-color:var(--ink)}.swatch-violet{background:var(--swatch-violet)}.swatch-blue{background:var(--swatch-blue)}.swatch-green{background:var(--swatch-green)}.setting-passphrase{gap:var(--space-2);flex-direction:column;display:flex}.setting-passphrase input{width:100%;min-width:0;min-height:2.75rem;padding:var(--space-2) var(--space-3);border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink);font:1rem var(--font-body)}.setting-passphrase input::placeholder{color:var(--muted)}.setting-passphrase p{margin:0}.setting-note{padding-top:var(--space-3);color:var(--muted);margin:0;font-size:.875rem}.course-settings{gap:var(--space-2);flex-direction:column;display:flex}.course-settings .card-title{margin:0}.course-ai{gap:var(--space-1);flex-direction:column;display:flex}.course-ai-label,.course-consents-title{color:var(--muted);font:600 .9375rem var(--font-display);margin:0}.course-seg{flex-wrap:wrap;display:flex}.course-help{padding-bottom:var(--space-2);border-bottom:1px solid var(--line)}.course-disk-warning{background:var(--warn-soft);color:var(--warn-ink);margin:0}.course-consent-row{column-gap:var(--space-3)}.course-record-ai{min-height:2.5rem;padding:0 var(--space-2);color:var(--accent-ink);font:600 1rem var(--font-display);text-align:left;cursor:pointer;background:0 0;border:0;flex:100%}@media (width>=48rem){.course-record-ai{flex:0 auto}}.student-actions{justify-content:flex-end;gap:var(--space-2);flex:100%;display:flex}.student-action{min-height:2.5rem;padding:0 var(--space-2);color:var(--accent-ink);font:600 1rem var(--font-display);cursor:pointer;background:0 0;border:0;align-items:center;text-decoration:none;display:inline-flex}.student-action:hover{text-decoration:underline}@media (width>=48rem){.student-actions{flex:0 auto;margin-left:auto}}.delete-student-scrim{z-index:50;padding:var(--space-4);background:color-mix(in srgb, var(--ink) 40%, transparent);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.delete-student{gap:var(--space-3);flex-direction:column;width:100%;max-width:26rem;margin:0;display:flex}.delete-student .card-title{margin:0}.delete-student-hint{color:var(--bad);margin:0;font-size:.875rem}.delete-student-actions{justify-content:flex-end}.btn.btn-danger{border-color:var(--bad);background:var(--bad);color:var(--on-accent)}.consent-withdraw[aria-expanded=true]{text-decoration:underline}.withdraw-confirm{gap:var(--space-2);min-width:0;padding:var(--space-3);border:1px solid 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