:root{--ui-space-1:4px;--ui-space-2:8px;--ui-space-3:12px;--ui-space-4:16px;--ui-space-5:20px;--ui-space-6:24px;--ui-radius:8px;--ui-dialog-radius:12px;--ui-control-height:40px;--ui-action-height:40px;--ui-action-compact-height:32px;--ui-card-min:330px}
/* All modal frames share their shape; components own content and size only. */
:where(dialog,[role="dialog"]){border-radius:var(--ui-dialog-radius)}
/* Ordinary embedded lists must hand the wheel back to the page when they cannot
   scroll, or when their end is reached. Dialogs own their outer containment. */
.ui-scroll-region[data-ui-scroll]{min-width:0;max-width:100%;min-height:0;max-height:min(var(--ui-scroll-limit,480px),65vh);overflow:auto;overscroll-behavior:auto;scrollbar-gutter:stable;scroll-padding-block:6px}
.ui-scroll-region:focus-visible{outline:2px solid var(--accent-line);outline-offset:2px}
.ui-scroll-region>table>thead th{position:sticky;top:0;z-index:1;background:var(--surface);box-shadow:0 1px var(--line)}
@supports(height:1svh){.ui-scroll-region[data-ui-scroll]{max-height:min(var(--ui-scroll-limit,480px),65svh)}}
.ui-surface{min-width:0}
/* A standalone content card, independent of the legacy page-section .card.
   Components may set its inset/tint; they do not redraw the frame. */
.ui-surface--framed{box-sizing:border-box;margin:0;padding:var(--ui-surface-padding,16px);border:1px solid var(--ui-surface-border,var(--line));border-radius:6px;background:var(--ui-surface-background,var(--surface));color:var(--ink);box-shadow:0 2px 4px color-mix(in srgb,var(--ink) 5%,transparent)}
.ui-surface--stable{box-sizing:border-box;display:flex!important;flex-direction:column;block-size:var(--ui-surface-block-size,400px);min-block-size:0!important;min-width:0}
.ui-surface--stable>:not(.ui-surface__body){flex:0 0 auto;min-width:0}
.ui-surface--stable>.ui-surface__body{flex:1 1 0;min-block-size:0;min-width:0;max-height:none;max-block-size:none;overflow:auto;overscroll-behavior:auto;scrollbar-gutter:stable}
/* Only one scrollbar in a stable card; the body owns the viewport for all states. */
.ui-surface--stable>.ui-surface__body .ui-scroll-region[data-ui-scroll]{max-height:none;max-block-size:none;overflow:visible;scrollbar-gutter:auto}
/* Small work cards shrink to their content. Only long content reaches the cap;
   flex-basis:auto is essential here: a zero basis would collapse short lists. */
.ui-surface--adaptive{box-sizing:border-box;display:flex!important;flex-direction:column;block-size:auto;max-block-size:var(--ui-surface-block-size,400px);min-block-size:0!important;min-width:0}
.ui-surface--adaptive>:not(.ui-surface__body){flex:0 0 auto;min-width:0}
.ui-surface--adaptive>.ui-surface__body{flex:0 1 auto;min-block-size:0;min-width:0;max-height:none;max-block-size:none;overflow:auto;overscroll-behavior:auto;scrollbar-gutter:auto}
.ui-surface--adaptive>.ui-surface__body .ui-scroll-region[data-ui-scroll]{max-height:none;max-block-size:none;overflow:visible;scrollbar-gutter:auto}
.ui-surface :where(.empty){margin:0;padding:12px 0}
/* Wrap by the actual card width, not the viewport: never trade the title for buttons. */
.ui-surface__heading{display:flex;flex-wrap:wrap;align-items:center;gap:8px var(--ui-space-4);margin-bottom:var(--ui-space-4)}
.ui-surface__heading-copy{flex:1 1 220px;min-width:0;max-width:100%;overflow-wrap:anywhere}
.ui-surface__heading-actions{display:flex;flex:0 1 auto;flex-wrap:wrap;align-items:center;gap:8px;min-width:0;max-width:100%}
.ui-surface__heading-actions>.ui-row{flex-wrap:wrap;max-width:100%;gap:8px}
.ui-surface__heading-actions :is(button,.button){min-width:0;max-width:100%;white-space:normal;overflow-wrap:anywhere}
.ui-surface__heading>.ui-surface__description{flex:1 0 100%;min-width:0;max-width:100%;overflow-wrap:anywhere}
.ui-surface__heading h2{margin:0}.ui-surface__description{margin:0;color:var(--muted)}.ui-eyebrow{margin:0 0 var(--ui-space-1);color:var(--muted);font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase}
.ui-row{display:flex;gap:var(--ui-space-3);min-width:0}.ui-row--wrap{flex-wrap:wrap}.ui-row--center{align-items:center}.ui-row--between{align-items:center;justify-content:space-between}
.ui-action{flex:0 0 auto;max-width:100%;white-space:nowrap}.ui-action--compact{min-height:36px;padding:6px 10px}.ui-action--danger{color:var(--danger-ink)}
.ui-action.ui-action--icon{display:inline-grid;place-items:center;box-sizing:border-box;width:40px;height:40px;min-height:40px;padding:8px;border:1px solid var(--line);border-radius:6px;background:var(--surface);line-height:1}
.ui-action--icon>.ui-icon{width:20px;height:20px}
.ui-action.ui-action--direction{display:inline-flex;align-items:center;justify-content:center;gap:6px}
.ui-direction-icon{display:block;flex:none;width:18px;height:18px;pointer-events:none}
.ui-action.ui-action--icon:hover{background:var(--surface-hover);border-color:var(--line-strong)}
@media(pointer:coarse){.ui-action.ui-action--icon{width:44px;height:44px;min-height:44px}}
.ui-field{display:grid;gap:5px;min-width:0}.ui-field__label{font-weight:600}.ui-field__hint{font-weight:400}.ui-field__error{color:var(--danger-ink);font-weight:600}.ui-form{display:grid;gap:15px}
/* One native-control baseline, including legacy forms. Choice/file/colour/range
   controls intentionally do not opt in. Textarea and inline-money may grow. */
.ui-control:is(input,select){box-sizing:border-box;min-width:0;max-width:100%;height:var(--ui-control-height);min-height:var(--ui-control-height);padding:6px 10px;font-size:16px;line-height:1.25}
textarea.ui-control{min-width:0;max-width:100%;font-size:16px;line-height:1.5}
.ui-control[aria-invalid=true],.ui-control:user-invalid{border-color:var(--danger-line);box-shadow:var(--danger-glow)}
/* Shared emergency contract. Text-only danger actions keep their normal surface. */
.ui-emergency{box-shadow:var(--danger-glow)}
.ui-emergency--surface{box-shadow:var(--danger-surface-glow)}
.ui-control:disabled{background:var(--surface-muted);color:var(--muted);cursor:default}
.ui-field__label{font-size:14px;line-height:1.4;overflow-wrap:anywhere}
.ui-field__hint,.ui-field__error{margin:0;font-size:13px;line-height:1.4;overflow-wrap:anywhere}
.ui-field--compact .ui-field__label{font-size:12px}
.ui-field--compact>.ui-control,.ui-toolbar__filters .ui-control{font-size:14px}
.ui-field>.ui-student-filter{box-sizing:border-box;min-height:var(--ui-control-height)}
.ui-field>.ui-student-filter>summary{min-height:calc(var(--ui-control-height) - 2px);margin:0}
.ui-action.ui-action--regular:not(:where(.today-lesson *)),.ui-action.ui-action--compact:not(:where(.today-lesson *)){box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:0;height:auto;line-height:1.25;max-width:100%;white-space:normal;overflow-wrap:anywhere;text-align:center;text-decoration:none}
.ui-action.ui-action--regular:not(:where(.today-lesson *)){min-height:var(--ui-action-height);padding:8px 14px;font-size:16px}
.ui-action.ui-action--compact:not(:where(.today-lesson *)){min-height:var(--ui-action-compact-height);padding:5px 10px;font-size:14px}
.ui-action--secondary{border:1px solid var(--line);background:var(--surface)}
.ui-action--secondary:hover{border-color:var(--line-strong);background:var(--surface-hover)}
.ui-action--primary{background:var(--inverse);border-color:var(--ink);color:var(--on-inverse)}
.ui-action--primary:hover{background:var(--inverse-hover);color:var(--on-inverse)}
.ui-action-group{display:flex;align-items:center;flex-wrap:wrap;gap:8px;min-width:0;max-width:100%}
.ui-action-group--end{justify-content:flex-end}
.ui-action-group>.ui-action{flex:0 1 auto;max-width:100%;white-space:normal;overflow-wrap:anywhere}
.ui-action-group>.ui-action--icon{flex:0 0 auto}
.ui-action-group>[hidden]{display:none}
/* Preserve compact navigation labels when actions inherit shared geometry. */
@media(max-width:800px){.context-tabs>.ui-action.ui-action--regular{padding-inline:2px;font-size:15px;line-height:1.2;overflow-wrap:normal}}
.ui-action-group:has(>.ui-action--regular)>.ui-action--compact,.ui-toolbar__actions>.ui-action--compact{min-height:var(--ui-action-height)}
@media(max-width:720px),(pointer:coarse){:root{--ui-control-height:44px;--ui-action-height:44px;--ui-action-compact-height:40px}.ui-control:is(input,select),textarea.ui-control{font-size:16px}.ui-field--compact>.ui-control,.ui-toolbar__filters .ui-control{font-size:16px}}
.ui-segmented{display:flex;flex-wrap:wrap;max-width:100%;min-width:0;gap:3px;padding:3px;border:1px solid var(--line);border-radius:var(--ui-radius);background:var(--surface);color:var(--ink)}
.ui-segmented__option{position:relative;display:flex;flex:1 1 auto;min-width:0;margin:0;font:inherit;cursor:pointer}
input.ui-segmented__input{position:absolute;width:1px;height:1px;min-height:0;padding:0;margin:0;border:0;overflow:hidden;clip-path:inset(50%)}
.ui-segmented__option>span{display:flex;align-items:center;justify-content:center;box-sizing:border-box;width:100%;min-height:36px;padding:6px 12px;border-radius:calc(var(--ui-radius) - 3px);font-size:14px;line-height:1.3;text-align:center;overflow-wrap:anywhere}
.ui-segmented__input:checked+span{background:var(--context-selected-soft);color:var(--ink);box-shadow:inset 0 0 0 1px var(--context-selected-line);font-weight:700}
.ui-segmented__input:focus-visible+span{outline:2px solid var(--ink);outline-offset:-2px}
.ui-segmented__input:disabled+span{opacity:.6;cursor:default}
.ui-segmented{display:grid;grid-template-columns:repeat(var(--ui-segment-columns,4),minmax(0,1fr))}
.ui-segmented__option>span{min-width:0}
@media(max-width:540px){.ui-segmented{grid-template-columns:repeat(var(--ui-segment-mobile-columns,2),minmax(0,1fr))}}
button:disabled,.button[aria-disabled=true]{cursor:default}
.ui-action-pending:disabled{opacity:1;cursor:progress}
.ui-segmented__option>span{display:grid;place-items:center}
.ui-segmented__text,.ui-segmented__option>span::before,.ui-segmented__option>span::after{grid-area:1/1}
.ui-segmented__option>span::before{content:attr(data-label);font-weight:400;visibility:hidden;pointer-events:none}
.ui-segmented__option>span::after{content:attr(data-label);font-weight:700;visibility:hidden;pointer-events:none}
/* A normal grid is safe before the first measurement (and without JS).
   Enable one-pixel masonry rows only after every card has a measured span. */
.ui-card-grid{--ui-card-gap:16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,var(--ui-card-min)),1fr));grid-auto-flow:row;grid-auto-rows:auto;column-gap:var(--ui-card-gap);row-gap:var(--ui-card-gap);align-items:start;min-width:0}.ui-card-grid>*{min-width:0;margin:0!important}
.ui-card-grid[data-ui-packed=true]{grid-auto-flow:dense;grid-auto-rows:1px;row-gap:0}
.ui-card-grid--equal{grid-auto-flow:row;grid-auto-rows:auto;row-gap:var(--ui-card-gap);align-items:stretch}
.ui-region{position:relative;min-width:0}.ui-region__status{display:block;min-height:20px;margin:4px 0;color:var(--muted)}.ui-region__status:empty{display:none}.ui-region[aria-busy=true]>.ui-region__content{opacity:.72;pointer-events:none}.ui-region[aria-busy=true]:after{content:'';position:absolute;top:6px;right:6px;width:14px;height:14px;border:2px solid var(--line-strong);border-top-color:var(--ink);border-radius:50%;animation:ui-spin .7s linear infinite}.ui-region[data-error=true]>.ui-region__status{color:var(--danger-ink)}
.ui-money-input{font-variant-numeric:tabular-nums}
@keyframes ui-spin{to{transform:rotate(360deg)}}
@media(max-width:720px){.ui-card-grid,.ui-card-grid[data-ui-packed=true]{grid-template-columns:minmax(0,1fr);grid-auto-flow:row;grid-auto-rows:auto;gap:12px}.ui-card-grid>*{grid-row:auto!important}.ui-surface__heading{grid-template-columns:minmax(0,1fr);row-gap:var(--ui-space-2)}.ui-surface__heading>.ui-action,.ui-surface__heading>.ui-row{justify-self:start}.ui-action{max-width:100%;white-space:normal}}
@media(prefers-reduced-motion:reduce){.ui-region[aria-busy=true]:after{animation:none}}
[data-theme=dark] .ui-region[aria-busy=true]>.ui-region__content{opacity:.62}
.ui-surface__title-tail{white-space:nowrap}.ui-surface__title-with-help .ui-help{margin-left:8px;vertical-align:.12em;white-space:normal}
.ui-surface__title-tail--long{white-space:normal;overflow-wrap:anywhere}
/* The one shared tooltip (widgets.js → tooltip): icon-button labels, «?» hints and chips.
   Set data-tip (or use UIWidgets.help / UIWidgets.tip); never build a tooltip in CSS. */
.ui-tooltip{position:fixed;box-sizing:border-box;inset:auto;margin:0;left:0;top:0;z-index:1000;max-width:min(320px,calc(100vw - 24px));padding:7px 10px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--ink);font:500 13px/1.4 Manrope,sans-serif;letter-spacing:normal;text-align:left;text-transform:none;white-space:pre-line;overflow-wrap:anywhere;box-shadow:0 8px 24px #1113;pointer-events:none}
.ui-tooltip[hidden]{display:none}
.ui-tooltip{width:max-content} /* Measure independently of the previous screen position. */
.ui-tooltip{max-height:calc(100dvh - 24px);overflow:auto;overscroll-behavior:contain;pointer-events:auto}
.ui-tooltip--rich{width:min(360px,calc(100vw - 24px));max-width:none;padding:12px 14px;white-space:normal}
/* Detail is a material variant of the ONE tooltip, not a calendar-owned popup. */
.ui-tooltip.ui-detail-tip{box-sizing:border-box;width:var(--ui-detail-width,320px);padding:14px;border:1px solid var(--detail-glass-edge);border-radius:10px;background:var(--detail-glass);color:var(--ink);backdrop-filter:blur(12px) saturate(1.18);-webkit-backdrop-filter:blur(12px) saturate(1.18);box-shadow:0 12px 32px var(--detail-glass-shadow),inset 0 1px 0 var(--detail-glass-highlight);white-space:normal}
.ui-detail-tip__heading{display:flex;align-items:start;justify-content:space-between;gap:12px;margin-bottom:10px}
.ui-detail-tip__heading>.ui-detail-tip__title{min-width:0;margin:0;font-size:15px;font-weight:600;line-height:1.35}
.ui-detail-tip__body{display:grid;gap:6px;min-width:0}.ui-detail-tip__body>p{margin:0;color:var(--muted);font-size:12px;line-height:1.4}
.ui-detail-tip .ui-detail-tip__close{flex:0 0 auto;display:grid;place-items:center;width:28px;min-height:28px;margin:-3px -3px 0 0;padding:0;font-size:22px;line-height:1;color:var(--muted)}
.ui-detail-tip__body>.ui-action{text-align:left;justify-content:flex-start;width:100%}
@supports not (backdrop-filter:blur(1px)){.ui-tooltip.ui-detail-tip{background:var(--surface)}}
@media(prefers-reduced-transparency:reduce){.ui-tooltip.ui-detail-tip{background:var(--surface);backdrop-filter:none;-webkit-backdrop-filter:none}}
@media(pointer:coarse){.ui-detail-tip .ui-detail-tip__close{width:44px;min-height:44px}}
/* A rich «?» keeps its content as a hidden template that screen readers still read. */
.ui-help__bubble{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.ui-tooltip strong{display:block;font-size:13px}.ui-tooltip small{font-size:12px}.ui-tooltip ol,.ui-tooltip ul{margin:6px 0 12px;padding-left:18px}.ui-tooltip li{margin:0 0 4px}.ui-tooltip>:last-child{margin-bottom:0}
.ui-clamp{display:grid;gap:2px;min-width:0}.ui-clamp__body{margin:0;white-space:pre-line}
.ui-clamp.is-clamped .ui-clamp__body{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:var(--ui-clamp-lines,4);line-clamp:var(--ui-clamp-lines,4);overflow:hidden}
.ui-clamp__toggle{justify-self:end;min-height:0;padding:2px 0;border:0;background:none;color:inherit;font-weight:700;font-size:13px;text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.ui-clamp__toggle[hidden]{display:none}
.ui-field-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,220px),1fr));gap:var(--ui-space-3);align-items:start}
.ui-toolbar{display:flex;align-items:flex-end;flex-wrap:wrap;gap:var(--ui-space-3);margin-bottom:var(--ui-space-4);min-width:0}
.ui-toolbar__navigation{flex:0 1 auto;min-width:0;max-width:100%}
.ui-toolbar__filters{display:flex;align-items:flex-end;flex-wrap:wrap;gap:var(--ui-space-3);flex:1 1 280px;min-width:0}
/* Filters follow their content. An isolated date is never stretched across a
   desktop toolbar; only search gets the remaining room. These widths apply to
   the shared toolbar, not the calendar's independent period/tool groups. */
.ui-toolbar__filters>.ui-field{flex:0 1 220px;min-width:min(100%,180px)}
.ui-toolbar__filters>.ui-field:has(>input:is([type=date],[type=month])){flex-basis:160px;min-width:156px;max-width:180px}
.ui-toolbar__filters>.ui-field:has(>input:is([type=search],[type=text])){flex:1 1 220px;max-width:420px}
.ui-toolbar__filters>.ui-field[hidden]{display:none}
.ui-toolbar__actions{display:flex;align-items:center;flex-wrap:wrap;gap:var(--ui-space-2);margin-left:auto}
@media(max-width:720px){.ui-toolbar__navigation{flex-basis:100%}.ui-toolbar__navigation>.ui-segmented{width:100%}}
.ui-page{min-width:0;width:100%}
.ui-student-filter{position:relative;min-width:0;width:100%;border:1px solid var(--line-strong);border-radius:5px;background:var(--surface);color:var(--ink)}
.ui-student-filter[open]{z-index:20}
.ui-student-filter>summary{display:flex;align-items:center;box-sizing:border-box;min-height:36px;padding:6px 30px 6px 10px;margin:0;cursor:pointer;font-size:14px;line-height:1.25;overflow-wrap:anywhere}
.ui-student-filter>summary::after{content:'';position:absolute;right:12px;width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg)}
.ui-student-filter>summary[aria-disabled=true]{cursor:default;opacity:.6}
.ui-student-filter__panel{position:fixed;inset:auto;margin:0;z-index:20;display:flex;flex-direction:column;gap:8px;box-sizing:border-box;width:min(280px,calc(100vw - 24px));padding:10px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--ink);box-shadow:0 16px 38px #20232924}
.ui-student-filter__panel[popover]:not(:popover-open){display:none}
.ui-student-filter__panel>*{flex-shrink:0}
.ui-student-filter__panel>input{min-width:0;width:100%;padding:7px 9px}
.ui-student-filter__list{display:grid;grid-template-columns:minmax(0,1fr);flex:1 1 auto;min-width:0;min-height:0;max-height:230px;overflow:auto;overscroll-behavior:contain}
.ui-student-filter__list>label.ui-student-filter__option,.ui-student-filter__panel>label.ui-student-filter__master{display:flex;align-items:center;gap:8px;min-width:0;min-height:36px;padding:6px 8px;font-weight:500}
.ui-student-filter__list>label.ui-student-filter__option[hidden],.ui-student-filter__panel>[hidden]{display:none}
.ui-student-filter__option{border-radius:5px}
.ui-student-filter__option:hover{background:var(--surface-hover)}
.ui-student-filter__option:has(input[type="radio"]:checked){background:var(--context-selected-soft);box-shadow:inset 0 0 0 1px var(--context-selected-line)}
.ui-student-filter__option:has(input[type="radio"]:checked):hover{background:var(--context-selected-hover)}
.ui-student-filter__panel>label.ui-student-filter__master{border-bottom:1px solid var(--line);font-weight:700}
/* Private choice geometry: page-level field rules must not stretch switches.
   Typed direct children deliberately outrank ordinary descendant input rules. */
.ui-student-filter__option>input:is([type=checkbox],[type=radio]),.ui-student-filter__master>input:is([type=checkbox],[type=radio]){box-sizing:border-box;flex:0 0 17px;width:17px;min-width:17px;max-width:17px;height:17px;min-height:17px;max-height:17px;margin:0;padding:0}
.ui-student-filter__option>span,.ui-student-filter__master>span{flex:1 1 0;min-width:0;white-space:normal;overflow-wrap:anywhere}
@media(pointer:coarse){.ui-student-filter__list>label.ui-student-filter__option,.ui-student-filter__panel>label.ui-student-filter__master{min-height:44px}}
.ui-student-filter__actions{display:flex;justify-content:flex-end;gap:6px;border-top:1px solid var(--line);padding-top:7px}
.workspace-content>.ui-page--wide{max-width:none}
header.ui-page__header{display:grid;grid-template-columns:minmax(0,1fr);align-items:start;gap:var(--ui-space-6);position:static;height:auto;min-height:0;max-width:none;padding:0;margin:0 0 var(--ui-space-6);border:0;background:none}
header.ui-page__header--action{grid-template-columns:minmax(0,1fr) auto}
.ui-page__copy{min-width:0}
.ui-page__title{margin:0;font-size:32px;line-height:1.25;overflow-wrap:anywhere}
.ui-page__description{margin:var(--ui-space-2) 0 0;color:var(--muted);line-height:1.55}
.ui-page__action{display:flex;min-width:0;max-width:100%;justify-content:flex-end}
.ui-page__action[hidden],.ui-page__meta[hidden]{display:none}
.ui-page__action>.assign-button{margin:0}
.ui-page__meta{margin-bottom:var(--ui-space-4)}
.ui-page__content{min-width:0}
@media(max-width:720px){header.ui-page__header{grid-template-columns:minmax(0,1fr);gap:var(--ui-space-4)}.ui-page__title{font-size:28px}.ui-page__action{justify-content:flex-start}}
.ui-inline-money{display:inline-flex;align-items:baseline;gap:3px;font-weight:700;font-variant-numeric:tabular-nums;cursor:text;white-space:nowrap}
.ui-inline-money>input.ui-inline-money__input:not([type=checkbox]){min-height:0;height:auto;padding:0 2px;border:0;border-bottom:1px dashed var(--line-strong);border-radius:0;background:transparent;color:inherit;font:inherit;line-height:inherit;text-align:right;box-shadow:none;cursor:text}
.ui-inline-money>input.ui-inline-money__input:hover{border-bottom-color:var(--accent-line)}
.ui-inline-money>input.ui-inline-money__input:focus{outline:none;border-bottom:1px solid var(--accent);background:var(--accent-soft)}
.ui-inline-money>input.ui-inline-money__input::placeholder{color:var(--danger-ink);font-weight:600}
.ui-metric-summary{min-width:0;margin:6px 0 16px}
.ui-switch-panels{display:grid;min-width:0;overflow-anchor:none}
.ui-switch-panels__panel{grid-area:1/1;min-width:0}
.ui-switch-panels__panel[data-active=false]{visibility:hidden;pointer-events:none}
.ui-switch-panels[data-size=content]{align-items:start}
.ui-switch-panels[data-size=content]>.ui-switch-panels__panel[data-active=false]{display:none}
[data-ui-scroll-floor]{min-height:var(--ui-scroll-floor,0px);align-content:start}
.ui-metric-summary__controls{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;margin-bottom:10px}
.ui-metric-summary__strip{padding:16px;border:1px solid var(--line);background:var(--surface)}
.ui-metric-summary__panel{display:grid;grid-template-columns:repeat(var(--metric-count,4),minmax(0,1fr));height:100%}
.ui-metric-summary__metric{display:grid;align-content:start;gap:8px;min-width:0;padding:0 16px;border-right:1px solid var(--line)}
.ui-metric-summary__metric:first-child{padding-left:0}
.ui-metric-summary__metric:last-child{padding-right:0;border-right:0}
.ui-metric-summary__label{display:flex;align-items:flex-start;gap:5px;min-height:2.6em;color:var(--muted);font-size:12px;line-height:1.3}
.ui-metric-summary__metric strong{color:var(--ink);font:800 clamp(18px,1.65vw,26px)/1.2 Manrope,sans-serif;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.ui-metric-summary__metric--danger strong{color:var(--danger-ink)}
.ui-metric-summary__help{flex:0 0 16px;width:16px;min-width:16px;height:16px;min-height:16px;font-size:10px}
.ui-metric-summary__picker{display:grid;gap:10px}
.ui-metric-summary__picker label{display:flex;align-items:center;gap:10px;margin:0;font:inherit}
.ui-metric-summary__picker input{width:18px;height:18px;flex:0 0 18px;margin:0;padding:0}
.ui-metric-summary__picker label>span{min-width:0;overflow-wrap:anywhere}
.ui-page__title>.ui-help{display:inline-grid;vertical-align:middle;margin-left:10px;letter-spacing:normal}
@media(max-width:720px){.ui-metric-summary__strip{padding:14px}.ui-metric-summary__panel{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 0}.ui-metric-summary__metric{padding:0 12px}.ui-metric-summary__metric:nth-child(2n){border-right:0;padding-right:0}.ui-metric-summary__metric:nth-child(2n+1){padding-left:0}.ui-metric-summary__label{min-height:2.6em}.ui-metric-summary__controls{grid-template-columns:minmax(0,1fr)}.ui-metric-summary__controls>.ui-segmented{width:100%}.ui-metric-summary__controls>.ui-action{justify-self:end}}
@media(max-width:360px){.ui-metric-summary__label{min-height:3.9em}}
.ui-action-menu{display:inline-flex;flex:0 0 auto}.ui-action-menu__trigger{min-width:30px;min-height:30px;padding:0 7px;font-size:21px;line-height:1;border-color:transparent;background:transparent;color:var(--muted)}
.ui-action-menu__trigger:hover,.ui-action-menu__trigger[aria-expanded=true]{background:var(--surface-hover);color:var(--ink)}
.ui-action-menu__panel{position:fixed;inset:auto;margin:0;padding:5px;width:min(248px,calc(100vw - 16px));max-height:calc(100vh - 16px);overflow-y:auto;box-sizing:border-box;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);box-shadow:0 8px 30px color-mix(in srgb,var(--ink) 12%,transparent);font-size:14px}
.ui-action-menu__panel:popover-open{display:flex;flex-direction:column;gap:2px}.ui-action-menu__panel>button,.ui-action-menu__panel>a{width:100%;min-height:36px;padding:8px 10px;text-align:left;white-space:normal;border:0;background:transparent;border-radius:6px;font-size:14px;color:var(--ink)}
.ui-action-menu__panel>button:hover,.ui-action-menu__panel>a:hover{background:var(--surface-muted)}
.ui-tabbar{display:flex;align-items:stretch;gap:24px;min-width:0;max-width:100%;overflow-x:auto;overflow-y:hidden;scrollbar-width:thin;border-bottom:1px solid var(--line);padding:0 0 2px;margin-bottom:18px;scroll-padding-inline:4px}
.ui-tabbar>.ui-tabbar__tab{position:relative;display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:8px 4px 13px;border:0;border-radius:0;background:transparent;color:var(--muted);font:500 16px/1.35 Manrope,sans-serif;text-decoration:none;white-space:nowrap;cursor:pointer}
.ui-tabbar>.ui-tabbar__tab::after{content:'';position:absolute;inset:auto 0 -2px;height:3px;border-radius:2px;background:transparent}
.ui-tabbar>.ui-tabbar__tab.selected{color:var(--ink);font-weight:700;background:transparent}.ui-tabbar>.ui-tabbar__tab.selected::after{background:var(--ink)}
.ui-tabbar>.ui-tabbar__tab:hover{background:transparent;color:var(--ink)}.ui-tabbar>.ui-tabbar__tab:not(.selected):hover::after{background:var(--line-strong)}
.ui-tabbar>.ui-tabbar__tab:focus-visible{outline:2px solid var(--accent-line);outline-offset:-2px}.ui-tabbar__count{min-width:20px;padding:1px 5px;border-radius:5px;background:var(--surface-muted);color:var(--muted);font-size:13px;font-weight:500;font-variant-numeric:tabular-nums;text-align:center}.ui-tabbar__count[hidden]{display:none}
@media(max-width:720px){.ui-tabbar{gap:18px;margin-bottom:14px}.ui-tabbar>.ui-tabbar__tab{min-height:46px;font-size:15px}}
/* Both label weights occupy one cell: selecting a tab never shifts its siblings. */
html:has(body.workspace){scrollbar-gutter:stable}
.ui-tabbar__label{display:inline-grid}.ui-tabbar__label>span,.ui-tabbar__label::after{grid-area:1/1}
.ui-tabbar__label::after{content:attr(data-label);font-weight:700;visibility:hidden;pointer-events:none}
.ui-tabbar.ui-tabbar--adaptive,.context-panel>.context-tabs.ui-tabbar--adaptive{display:flex;flex-wrap:nowrap;width:100%;box-sizing:border-box;overflow:visible;scrollbar-width:none}
.ui-tabbar--adaptive>.ui-tabbar__tab[hidden],.ui-tabbar__overflow[hidden],.ui-tabbar__menu>[hidden]{display:none!important}
.ui-tabbar__overflow{width:var(--ui-tabbar-overflow-width);max-width:100%;min-width:0;align-self:stretch}
/* The slot reserves the longest caption to prevent reflow; the visible button,
   focus outline and selected underline follow only the current caption. */
.ui-tabbar__overflow>.ui-action-menu__trigger{position:relative;display:flex;align-items:center;gap:8px;width:max-content;max-width:100%;min-height:44px;padding:8px 4px 13px;border:0;border-radius:0;background:transparent;color:var(--muted);font:500 16px/1.35 Manrope,sans-serif;white-space:nowrap;text-align:left}
.ui-tabbar__overflow>.ui-action-menu__trigger.selected{color:var(--ink);font-weight:700}
.ui-tabbar__overflow>.ui-action-menu__trigger.selected::after{content:'';position:absolute;inset:auto 0 -2px;height:3px;border-radius:2px;background:var(--ink)}
.ui-tabbar__overflow>.ui-action-menu__trigger:hover,.ui-tabbar__overflow>.ui-action-menu__trigger[aria-expanded=true]{background:transparent;color:var(--ink)}
.ui-tabbar__overflow-caption{min-width:0;overflow:hidden;text-overflow:ellipsis}.ui-tabbar__chevron{display:block;box-sizing:border-box;margin:0 3px 4px;flex:0 0 8px;width:8px;height:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg)}
.ui-tabbar__overflow>.ui-action-menu__trigger{justify-content:flex-start}
.ui-tabbar__overflow>.ui-action-menu__trigger[aria-expanded=true]>.ui-tabbar__chevron{transform:translateY(4px) rotate(225deg)}
.ui-tabbar--adaptive[data-compact=true]>.ui-tabbar__overflow{width:100%}
.ui-tabbar--adaptive[data-compact=true]>.ui-tabbar__overflow>.ui-action-menu__trigger{padding:10px 4px 13px;min-height:46px}
.ui-action-menu__panel.ui-tabbar__menu>a,.ui-action-menu__panel.ui-tabbar__menu>button{display:flex;align-items:center;gap:12px;min-height:44px;font:500 15px/1.35 Manrope,sans-serif;text-align:left;white-space:normal}
.ui-action-menu__panel.ui-tabbar__menu>a{text-decoration:none}
.ui-tabbar__menu>.ui-tabbar__menu-item>.ui-tabbar__count{margin-left:auto;flex:0 0 auto}
.ui-action-menu__panel.ui-tabbar__menu>.selected{background:var(--surface-muted);font-weight:700}
.ui-tabbar.ui-tabbar__measure{position:fixed;inset:0 auto auto -10000px;visibility:hidden;pointer-events:none;contain:layout style;width:max-content;max-width:none;overflow:visible;gap:0;margin:0;border:0}
.ui-tabbar__measure>.ui-tabbar__overflow{width:max-content;max-width:none}
@media(max-width:720px){.ui-tabbar__overflow>.ui-action-menu__trigger{font-size:15px}}
/* Center the visible digit height, rather than a font's ascender/descender box. */
.ui-badge--number{display:inline-grid;place-items:center;flex:0 0 auto;box-sizing:border-box;width:22px;height:22px;padding:0;border-radius:50%;font:700 11px/1 Manrope,sans-serif;font-variant-numeric:lining-nums tabular-nums;letter-spacing:0}
.ui-badge--number>span{transform:translateY(-1px)}
@supports(text-box-trim:trim-both){.ui-badge--number>span{text-box-trim:trim-both;text-box-edge:cap alphabetic;transform:none}}
.ui-student-filter__option[data-choice-state=solved]>span{color:var(--success-ink)}
.ui-student-filter__option[data-choice-state=incorrect]>span{color:var(--danger-ink)}