.learning-library,.learning-library .ui-page{min-width:0}
.workspace-section-library .ui-page__header{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:12px}
.workspace-section-library .ui-page__copy{min-width:0}
.workspace-section-library .ui-page__title{overflow-wrap:anywhere}
.workspace-section-library .ui-page__action{justify-self:end;align-self:start}
.learning-library .ui-tabbar{margin-bottom:12px}
.ll-content>.ui-tabbar{margin-bottom:0}
.ll-content{min-width:0;display:grid;gap:16px}
.ll-save-status{display:block;min-height:1.5em;margin:10px 0}
.ll-save-status:empty{display:none}
.ll-error{color:var(--danger-ink)}
.ll-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;min-width:0}
.ll-item-state{display:inline-flex;flex-wrap:wrap;align-items:center;gap:8px;min-width:0}
.ll-item-status{padding:2px 6px;border-radius:3px;background:var(--surface-muted);color:var(--muted);font-size:13px;font-weight:500}
.ll-toolbar>input[type=search]{flex:1 1 220px;min-width:0}
.ll-task-filters{display:flex;flex:1 0 100%;flex-wrap:wrap;align-items:end;gap:8px;min-width:0}
.ll-task-filters>label,.ll-task-filters>.ll-filter-subject{flex:1 1 150px;min-width:0;max-width:260px}
.ll-toolbar>.ll-subject-field{flex:1 1 190px;min-width:0;max-width:260px}
.ll-toolbar>.ll-exam-field{flex:1 1 140px;min-width:0;max-width:190px}
.ll-toolbar--task-filters{align-items:flex-end}
/* Task lists reuse the original controls: two coherent groups, not new widgets. */
.ll-toolbar--task-list{align-items:flex-end;gap:12px}
.ll-task-search-tools{display:flex;align-items:center;gap:12px;flex:1 1 240px;min-width:0}
.ll-task-search-tools>input[type=search]{flex:1;min-width:0}
.ll-toolbar--task-list>.ll-task-archive{display:inline-flex;flex:none;align-items:center;gap:8px;min-height:var(--ui-control-height);white-space:nowrap;margin:0;cursor:pointer}
.ll-task-archive>input[type=checkbox]{width:17px;height:17px;margin:0;flex:none}
.ll-toolbar--task-list>.ll-task-filters{flex:1.4 1 360px;gap:12px}
.ll-toolbar--task-list>.ll-task-filters>label{flex:1 1 140px;max-width:none}
@media(max-width:900px){.ll-toolbar--task-list>.ll-task-search-tools{order:0;flex:1 1 180px}.ll-toolbar--task-list>.ll-task-archive{order:1}.ll-toolbar--task-list>.ll-task-filters{order:2;flex-basis:100%}.ll-toolbar--task-list>.ui-action{order:3}}
.ll-task-create-short{display:none}
.site-location-bar .ll-task-create{height:44px;min-height:44px;white-space:nowrap}
@media(max-width:380px){.site-location-bar .ll-task-create-full{display:none}.site-location-bar .ll-task-create-short{display:inline}}
.ll-subject-caption{display:flex;align-items:center;gap:var(--ui-space-1)}
/* The approved Catalog is a domain context control; UIControls owns its
   top-layer placement/dismissal, this variant owns only its private geometry. */
.ll-task-context{width:292px;max-width:100%;min-width:0;flex:0 1 292px}
.ll-task-context>.ll-context-trigger{display:flex;align-items:center;gap:0;width:100%;height:44px;min-height:44px;padding:0;overflow:hidden;border:1px solid var(--line-strong);border-radius:var(--ui-radius);background:var(--surface-muted);color:var(--ink);text-align:left}
.ll-context-trigger[aria-expanded=true]{border-color:var(--context-selected)}
.ll-context-trigger>.ll-context-token{display:grid;place-items:center;align-self:stretch;flex:0 0 44px;background:var(--accent);color:var(--on-accent);border-right:1px solid var(--line)}
.ll-context-trigger>.ll-context-copy{display:grid;min-width:0;flex:1;gap:0;padding:3px 10px}
.ll-context-copy>strong{font-size:15px;line-height:18px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ll-context-copy>small{font-size:11px;line-height:14px;color:var(--muted)}
.ll-context-trigger>.ui-icon{width:16px;height:16px;flex:0 0 16px;margin:0 10px 0 4px}
.ll-context-symbol{display:grid;place-items:center;width:22px;height:24px;flex:0 0 22px}
.ll-context-symbol>.ui-icon{width:20px;height:20px}
.ll-context-language{display:grid;place-items:center;width:22px;height:22px;border:1px solid currentColor;border-radius:3px;font:500 11px/1 Arial,sans-serif}
.ui-picker-panel.ll-context-panel{width:min(660px,calc(100vw - 24px));min-width:0;padding:0;overflow:hidden}
.ll-context-catalog{display:flex;flex-direction:column;max-height:min(560px,calc(100dvh - var(--site-header-height,52px) - 24px));min-height:0}
.ll-context-heading{display:flex;align-items:center;gap:8px;flex:0 0 auto;padding:4px 6px 4px 14px;border-bottom:1px solid var(--line)}
.ll-context-heading>strong{flex:1;min-width:0;font-size:16px;font-weight:700}
.ll-context-heading>.ll-context-close{display:grid;place-items:center;flex:0 0 44px;width:44px;height:44px;min-height:44px;padding:0;border:0;background:transparent}
.ll-context-direction-region{flex:0 0 auto;padding:12px 14px;border-bottom:1px solid var(--line)}
.ll-context-label{font-size:11px;line-height:14px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.ll-context-direction-region>.ll-context-label{display:block;margin-bottom:7px}
.ll-context-directions{display:flex;flex-wrap:wrap;gap:6px}
.ll-context-directions>.ll-context-direction{min-height:44px;padding:7px 12px;border:1px solid var(--line);border-radius:3px;background:var(--surface-muted);color:var(--ink);font-size:14px}
.ll-context-subject-region{display:flex;flex:1 1 auto;flex-direction:column;gap:8px;min-height:0;padding:12px 14px 14px}
.ll-context-subject-heading{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;flex:0 0 auto}
.ll-context-subject-heading>.ll-context-search{flex:0 1 240px;width:240px;min-width:0;height:36px;padding:6px 9px;font-size:14px}
.ll-context-subject-scroll{min-height:0;max-height:320px;overflow:auto;overscroll-behavior:contain;padding:2px}
.ll-context-subjects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}
.ll-context-subjects>.ll-context-subject{display:flex;align-items:center;gap:9px;min-width:0;min-height:44px;padding:7px 8px;white-space:normal;text-align:left;border:1px solid var(--line);border-radius:3px;background:var(--surface-muted);color:var(--ink);font-size:14px;line-height:18px}
.ll-context-subject>span:last-child{min-width:0;overflow-wrap:anywhere}
.ll-context-subjects>.ll-context-subject[hidden]{display:none}
.ll-context-subject[aria-pressed=true],.ll-context-direction[aria-pressed=true]{background:var(--context-selected-soft);border-color:var(--context-selected-line);box-shadow:inset 0 0 0 1px var(--context-selected-line)}
.ll-context-subject:hover:not(:disabled),.ll-context-direction:hover:not(:disabled){border-color:var(--line-strong)}
.ll-context-selection{flex:0 0 auto;padding:10px 14px;border-top:1px solid var(--line);background:var(--surface-muted);color:var(--muted);font-size:12px;overflow-wrap:anywhere}
.ll-context-empty{padding:12px;margin:0;color:var(--muted)}
@media(max-width:650px){.ll-context-subjects{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:380px){.ll-context-subjects{grid-template-columns:1fr}.ll-context-direction-region,.ll-context-subject-region{padding:10px}.ll-context-directions{gap:4px}.ll-context-directions>.ll-context-direction{padding:7px 9px;font-size:13px}.ll-context-subject-heading>.ll-context-search{flex:1;width:100%;font-size:16px}}
@media(max-height:400px){.ui-picker-panel.ll-context-panel{overflow:auto}.ll-context-catalog{max-height:none}.ll-context-subject-scroll{max-height:none;overflow:visible}}
.ll-task-filters>[hidden]{display:none}
.ll-task-filters>label>input,.ll-task-filters>label>select{width:100%;box-sizing:border-box;min-width:0}
@media(max-width:600px){.ll-task-filters>label,.ll-task-filters>.ll-filter-subject{flex-basis:calc(50% - 8px);max-width:100%;overflow-wrap:anywhere}.ll-task-filters .ui-student-filter{max-width:100%;min-width:0}.ll-task-filters>label select{white-space:normal}}
.ll-inline{display:inline-flex;gap:6px;align-items:center;font-size:.9rem}
.ll-list{display:grid;gap:10px}
.ll-list-card{--ui-surface-padding:12px;display:flex;align-items:center;flex-wrap:wrap;gap:10px;min-width:0}
.ll-task-card{display:grid;grid-template-columns:minmax(0,1fr);gap:10px;min-width:0}
.ll-task-heading{display:flex;align-items:flex-start;gap:8px;min-width:0}
.ll-task-heading>input[type=checkbox]{flex:none;margin-top:8px}
.ll-task-heading>.ll-card-text{flex:1;min-width:0}
.ll-task-condition{white-space:pre-wrap;overflow-wrap:anywhere;min-width:0;color:var(--ink)}
.ll-task-condition p{margin:0}
.ll-task-actions,.ll-card-actions{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;min-width:0}
.ll-card-controls{display:flex;align-items:center;gap:4px;margin-left:auto;flex:none}
.ll-task-actions>.ui-action,.ll-card-actions>.ui-action{min-height:32px;min-block-size:32px;padding:4px 8px;font-size:13px}
.ll-card-meta{font-size:12px;line-height:1.45}
.ll-card-text{flex:1 1 180px;min-width:0;display:grid;gap:5px}
.ll-card-title{font-weight:650;overflow-wrap:anywhere;text-align:left;text-decoration:none}
.ll-card-title:hover{color:var(--ink);text-decoration:none}
.ll-task-title-line{display:flex;align-items:flex-start;gap:8px;min-width:0}
.ll-task-title-line>.ll-card-title{flex:1;min-width:0}
.ll-list-excerpt{overflow-wrap:anywhere;white-space:normal;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;text-overflow:ellipsis;color:var(--muted)}
.learning-library .ll-drag-handle.ui-action{flex:none;min-width:32px;width:32px;height:36px;min-inline-size:32px;min-block-size:36px;inline-size:32px;block-size:36px;padding-inline:5px;padding-block:5px;cursor:grab;touch-action:pan-y;user-select:none;color:var(--ink);background:var(--surface-muted);border-color:var(--line-strong)}
.ll-drag-handle:active{cursor:grabbing}
.ll-drag-handle svg{width:18px;height:20px;pointer-events:none}
.ll-drag-ghost{position:fixed;left:0;top:0;z-index:10000;display:block;max-width:270px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:9px 12px;border:1px solid var(--context-selected-line);border-radius:12px;background:var(--context-selected-soft);color:var(--ink);font-size:13px;font-weight:650;pointer-events:none;box-shadow:0 5px 14px var(--detail-glass-shadow)}
.ll-drag-ghost small{font-weight:400}
.ll-drag-ghost-group{display:flex;align-items:center;gap:0}
.ll-drag-stack{position:relative;display:block;flex:none;width:15px;height:18px;margin:3px 12px 0 0;border:1px solid var(--context-selected-line);border-radius:3px;background:var(--surface);box-shadow:3px -3px 0 var(--context-selected-soft),3px -3px 0 1px var(--context-selected-line),6px -6px 0 var(--context-selected-soft),6px -6px 0 1px var(--context-selected-line)}
.ll-drag-ghost-group small{white-space:pre}
.ll-set-card{--ui-surface-background:var(--context-selected-soft);--ui-surface-border:var(--context-selected-line)}
.ll-basket-wrap{position:fixed;top:max(12px,env(safe-area-inset-top));right:max(16px,env(safe-area-inset-right));z-index:65}
.ll-basket-wrap>.ll-basket-button.ui-action{position:relative;z-index:62;display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;min-inline-size:44px;min-block-size:44px;inline-size:44px;block-size:44px}
.site-location-bar .ll-basket-wrap{top:max(calc((var(--site-header-height,52px) - 44px)/2),env(safe-area-inset-top));right:max(16px,env(safe-area-inset-right))}
.site-location-bar .site-header-context-tools>.ll-basket-wrap{top:max(4px,env(safe-area-inset-top))}
.ll-basket-wrap>.ll-basket-button.ui-action[aria-expanded=true]{border-color:transparent;background:transparent;box-shadow:none;color:var(--ink)}
.ll-basket{position:absolute;right:0;top:0;z-index:61;width:min(300px,calc(100vw - 24px));overflow:visible;box-shadow:0 14px 40px var(--detail-glass-shadow);padding:10px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:14px}
.ll-basket{transform-origin:top right;opacity:1;transform:none;transition:opacity 120ms ease-out,transform 120ms ease-out,display 120ms allow-discrete}
.ll-basket[hidden]{display:none;opacity:0;transform:translateY(-3px) scale(.985);pointer-events:none}
/* Display changes at the end of closing, with no timer or stale close callback. */
@starting-style{.ll-basket:not([hidden]){opacity:0;transform:translateY(-3px) scale(.985)}}
@media(prefers-reduced-motion:reduce){.ll-basket{transition:none}}
.ll-basket-header{display:flex;flex-wrap:wrap;align-items:center;gap:6px;min-height:34px;padding-right:40px;margin-bottom:8px}
.ll-basket-header>strong{font-size:.92rem}
.ll-basket-header>small{font-size:.75rem}
.ll-basket-tools{display:flex;align-items:center;gap:6px;margin-bottom:8px}
.ll-basket-tools>.ui-action{font-size:12px;min-height:30px;padding:4px 6px;white-space:nowrap}
.ll-basket .ll-basket-set{--ui-surface-padding:9px;--ui-surface-background:var(--context-selected-soft);--ui-surface-border:var(--context-selected-line);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px 6px;align-items:start;margin:7px 0 0;box-shadow:none}
.ll-basket-copy{min-width:0}
.ll-basket-title{display:block;text-decoration:none;text-align:left;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-height:0;padding:0;font-size:13px;font-weight:650;color:var(--ink)}
.ll-basket-meta{display:block;font-size:11px;line-height:1.4;margin-top:3px;color:var(--muted)}
.ll-basket-feedback{display:block;margin-top:4px;color:var(--ink);font-size:11px;font-weight:500;line-height:1.4}
.ll-basket-feedback:empty{display:none}
.ll-basket-controls{display:flex;gap:1px;align-items:start}
.ll-basket-create-mark{width:22px;min-height:30px;align-items:center;justify-content:center}
/* Retain the ordinary title/meta row footprint without inventing preview data. */
.ll-basket-set-preview .ll-basket-copy{padding-block-end:calc(3px + 11px * 1.4)}
.ll-basket-create-label{display:flex;align-items:center;color:var(--muted)}
.ll-basket .ll-icon-control.ui-action,.learning-library .ll-icon-control.ui-action{flex:none;min-width:30px;width:30px;height:30px;min-height:30px;min-inline-size:30px;min-block-size:30px;inline-size:30px;block-size:30px;padding-inline:5px;padding-block:5px}
.ll-icon-control svg{width:16px;height:16px;pointer-events:none}
.ll-basket-set>.ui-action,.ll-basket-create-label{grid-column:1/-1;justify-self:start;min-height:26px;padding:3px 5px;font-size:11px}
.ll-drop-target{outline:3px solid var(--accent-line);outline-offset:2px;background:var(--accent-soft)}
.ll-added{animation:ll-added .6s ease-out}
@keyframes ll-added{0%,60%{background:var(--success-soft)}100%{background:var(--context-selected-soft)}}
.ll-duplicate{animation:ll-duplicate 320ms ease-out}
@keyframes ll-duplicate{0%{transform:translateX(0);background:var(--surface-muted)}20%{transform:translateX(-3px)}40%{transform:translateX(3px)}60%{transform:translateX(-2px);background:var(--surface-muted)}80%{transform:translateX(1px)}100%{transform:translateX(0);background:var(--context-selected-soft)}}
@media(prefers-reduced-motion:reduce){.ll-added,.ll-duplicate{animation:none}}
.ll-editor-fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));align-items:start;gap:12px}
.ll-editor-fields--collection{grid-template-columns:minmax(0,1fr);gap:var(--ui-space-4)}
.ll-editor-fields--task{grid-template-columns:minmax(0,1fr)}
.ll-task-metadata{grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr))}
.ll-editor-basics,.ll-editor-runtime{grid-template-columns:repeat(2,minmax(0,1fr))}
.ll-editor-basics>.ui-field,.ll-editor-runtime>.ui-field,.ll-editor-fields--task>.ui-field{min-width:0}
.ll-editor-header{justify-content:space-between;gap:var(--ui-space-3)}
.ll-editor-identity{flex:1 1 240px}
.ll-editor-actions{flex:0 1 auto}
.ll-editor-check{min-height:var(--ui-control-height);margin:0;gap:8px;cursor:pointer;white-space:nowrap}
.ll-editor-check>input[type=checkbox]{width:17px;height:17px;margin:0;flex:none}
.ll-collection-toolbar{align-items:center}
.ll-collection-add{flex:0 1 auto}
.ll-collection-selection{flex:0 1 auto;align-items:center}
.ll-collection-selection>.ui-action-group>.ui-action{min-height:var(--ui-control-height)}
.ll-task-source{display:grid;align-content:start;gap:var(--ui-space-3);min-width:0}
.ll-editor-fields--task>.ll-task-identity{grid-column:1/-1;overflow-wrap:anywhere}
@media(max-width:600px){.ll-editor-basics,.ll-editor-runtime{grid-template-columns:minmax(0,1fr)}}
.ll-source-fields{display:grid;gap:10px;align-content:start;min-width:0}
.ll-source-fields:empty{display:none}
.ll-source-foot{display:block;overflow-wrap:anywhere;font-size:.8rem;line-height:1.4}
.ll-source-foot a{color:inherit;text-underline-offset:3px}
.ll-step-frame{display:block;box-sizing:border-box;width:100%;min-width:0;min-height:620px;border:1px solid var(--line);border-radius:6px;background:var(--surface)}
.ll-collection{display:grid;gap:12px}
.ll-collection.sw-order-sorting{overflow-anchor:none}
.ll-snapshot{--ui-surface-padding:12px;position:relative;display:grid;gap:10px;min-width:0}
.ll-snapshot-heading{display:flex;align-items:flex-start;flex-wrap:wrap;gap:8px;min-width:0}
.ll-snapshot-heading>input[type=checkbox]{flex:none;margin-top:8px}
.ll-snapshot-heading>strong{flex:1 1 160px;min-width:0;overflow-wrap:anywhere}
.ll-snapshot-controls{display:flex;align-items:center;gap:4px;margin-left:auto;max-width:100%;flex-wrap:wrap}
.ll-collection>.sw-order-dragging{position:absolute;visibility:hidden;pointer-events:none;overflow-anchor:none}
.ll-collection>.sw-order-placeholder{pointer-events:none;opacity:.65;min-width:0;overflow-anchor:none;outline:1px dashed var(--line);outline-offset:-1px}
.ll-collection>.sw-order-ghost{display:none}
.ll-collection>.sw-order-native-image{position:fixed;left:0;top:0;z-index:10000;pointer-events:none;background:var(--surface)}
.ll-order-bundle{display:grid;gap:12px;min-width:0}
.learning-library .ll-collection .ll-drag-handle.ui-action{touch-action:none}
.ll-reorder-tail{min-height:44px;border:1px dashed var(--line);border-radius:10px;padding:12px;text-align:center;color:var(--muted);font-size:.85rem}
.ll-doc-preview{white-space:pre-wrap;overflow-wrap:anywhere;max-height:160px;overflow:auto;color:var(--muted);font-size:.92rem}
.ll-doc-preview p{margin:10px 0}
.ll-dragging{opacity:.5}
.ll-dialog{width:min(1050px,calc(100vw - 24px))}
.ll-dialog .schedule-dialog-body{min-width:0}
.ll-dialog .ll-step-frame{min-height:520px}
.ll-picker-results{display:grid;gap:8px;max-height:50vh;overflow:auto;margin-top:12px}
.ll-picker-row{display:flex;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:8px;overflow-wrap:anywhere}
.ll-recovery{white-space:pre-wrap;max-height:50vh;overflow:auto;overflow-wrap:anywhere}
.ll-course{display:grid;gap:16px}
.ll-course>.ui-action,.ll-content>.ui-action{justify-self:start}
.ll-module{display:grid;gap:12px}
.ll-course-lesson{border-left:3px solid var(--line);padding:14px 0 14px 16px;margin-top:12px}
.ll-course-steps{display:grid;gap:8px;margin-top:12px}
.ll-course-step{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:9px}
.ll-course-step>strong{flex:1 1 160px;overflow-wrap:anywhere}
.ll-course-step>small{flex:1 1 150px}
@media(max-width:900px){
  .ll-basket-wrap{top:max(10px,env(safe-area-inset-top));right:max(68px,env(safe-area-inset-right))}
  .ll-basket{width:min(300px,calc(100vw - 96px))}
  #app:has(.workspace-section-library) .phone-section-title{max-width:calc(100vw - 182px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  #app:has(.app-sidebar.phone-menu-open) .ll-basket-wrap{visibility:hidden;pointer-events:none}
}
@media(max-width:600px){
  .ll-list-card>input{align-self:flex-start}
  .ll-card-text{flex-basis:calc(100% - 80px)}
  .ll-list-card>button{flex:1}
  .ll-list-card>.ll-drag-handle,.ll-list-card>.ll-icon-control{flex:0 0 30px}
  .ll-set-card .ll-card-text{flex-basis:calc(100% - 80px)}
  .ll-step-frame{min-height:560px}
  .ll-course-lesson{padding-left:9px}
  .ll-toolbar>button,.ll-toolbar>a{min-height:40px}
  .ll-dialog .ll-step-frame{min-height:480px}
}