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dt{color:#858590}.lesson-note dd{margin:0}.calendar-foot{font-size:11px;color:#888;margin:24px 0;line-height:1.7}.calendar-foot button{border:0;padding:0 4px;font-size:11px;text-decoration:underline}.schedule-setup{padding:16px 20px;background:#f4f4f6;border:1px solid #e1e1e6;border-radius:14px;font-size:13px;line-height:1.7;margin-bottom:20px}@media(max-width:800px){.lesson-edit-main{grid-template-columns:1fr 1fr 1fr 35px}.lesson-edit-main .edit-title{grid-column:1/4;grid-row:2}.lesson-edit-main .remove-row{grid-column:4;grid-row:2}.lesson-extra-fields{grid-template-columns:1fr 1fr}.schedule-toolbar{display:block}.calendar-download{display:inline-block;margin:12px 0 0}.day-selector{gap:5px}.day-selector strong{font-size:20px}.day-selector button{padding:12px 3px}.lesson-card>summary{padding:16px;gap:14px}.lesson-time{min-width:60px;padding-right:14px}.lesson-time strong{font-size:18px}.lesson-note{margin:0 16px 16px}.lesson-note dl>div{grid-template-columns:105px 1fr}.planner-editor{padding:16px}.schedule-toolbar .week-tabs button{padding:10px 8px;font-size:10px}.file-picker{display:block}.file-picker input{margin-top:10px}.agenda-heading h2{font-size:18px}.lesson-description h3{font-size:14px}}@media(prefers-reduced-motion:reduce){.planner-editor,.agenda-list,.lesson-note,nav details[open]>button{animation:none}.day-selector button,.lesson-card,.nav-icon,.lesson-chevron{transition:none}}

.syllabus-overview{margin-bottom:24px}.syllabus-filename{overflow-wrap:anywhere;font-size:13px}.syllabus-preview{white-space:pre-wrap;font-size:13px;line-height:1.8;max-height:320px;overflow:auto}.syllabus-card details{border-top:1px solid #e8e8e8;padding:16px 0}.syllabus-card summary{cursor:pointer}.syllabus-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding-top:20px}.syllabus-actions a{font-size:13px;color:inherit}

/* 2.1 shared syllabus library */
.study-clock{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:14px 0;margin-bottom:12px;font-size:13px}.study-clock small{color:#777;margin-left:auto}.clock-face{font-size:24px}.week-settings{border-bottom:1px solid #e5e5e5;padding:0 0 20px;margin-bottom:26px}.week-settings summary{cursor:pointer;font-size:13px}.week-settings form,#syllabus-week-question{display:flex;align-items:end;gap:12px;flex-wrap:wrap}.week-settings label,#syllabus-week-question label{display:grid;gap:8px;font-size:12px}.library-layout{display:grid;grid-template-columns:minmax(180px,240px) minmax(0,1fr);gap:30px}.subject-list{display:flex;flex-direction:column;gap:8px;align-self:start}.subject-list .eyebrow{margin-bottom:12px}.subject-list button{text-align:left;display:grid;gap:7px;border-color:transparent;background:transparent;padding:14px;border-radius:12px;white-space:normal;line-height:1.5}.subject-list button.selected{background:#181818;color:white}.subject-list small{opacity:.6}.library-content{min-width:0}.library-welcome{border:1px solid #e5e5e5;border-radius:20px;padding:50px 30px;line-height:1.8}.document-options{display:grid;gap:10px;margin:24px 0}.document-option{display:flex;align-items:center;gap:14px;text-align:left;padding:18px;background:white;white-space:normal}.document-option.selected{border-color:#222}.document-option>span:nth-child(2){flex:1;min-width:0}.document-option strong{display:block;overflow-wrap:anywhere;font-size:13px;line-height:1.6}.document-option small{display:block;color:#777;margin-top:7px}.document-symbol{width:24px}.reader-card{border:1px solid #e4e4e4;border-radius:18px;padding:28px;background:white}.reader-toolbar,.reader-pagination{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:12px}.reader-toolbar a{color:inherit}.reader-card h3{overflow-wrap:anywhere;margin:24px 0}.reader-text{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.85;font-size:15px;max-height:600px;overflow:auto;padding-right:12px}.reader-pagination{margin:24px 0;border-top:1px solid #eee;padding-top:20px}#syllabus-week-question{border-top:1px solid #eee;padding-top:20px}.chat-main>.study-clock{margin:0 0 8px}.chat-main>.study-clock small{display:none}@media(max-width:760px){.library-layout{grid-template-columns:1fr}.subject-list{flex-direction:row;overflow-x:auto;padding-bottom:12px}.subject-list .eyebrow{display:none}.subject-list button{min-width:190px;max-width:230px;flex-shrink:0;border-color:#eee}.reader-card{padding:18px}.study-clock small{margin-left:0}.library-welcome{padding:30px 20px}}

/* Language, accessible navigation, focus and motion */
[hidden]{display:none!important}#language-select{border:1px solid #ddd;border-radius:10px;padding:9px 11px;background:#fff;color:#333;font-size:12px;max-width:115px;cursor:pointer}.skip-link{position:fixed;top:-80px;left:20px;padding:12px 20px;background:#181818;color:#fff;z-index:100}.skip-link:focus{top:12px}.menu-backdrop{display:none}.view-enter{animation:viewEntrance .22s ease-out}@keyframes viewEntrance{from{opacity:.4;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.document-option,.card,.subject-list button{transition:border-color .18s,background .18s,box-shadow .18s}.document-option:hover,.subject-list button:not(.selected):hover{background:#f6f6f7;border-color:#c9c9cc}.document-option:active,button.primary:active{transform:scale(.985)}.reader-text{scroll-behavior:smooth;overscroll-behavior:contain;scrollbar-gutter:stable}.reader-card{animation:viewEntrance .2s ease-out}#course-search{width:100%;min-width:0;border:1px solid #ddd;border-radius:10px;padding:12px;background:#fff;margin:6px 0 10px}.subject-list input:focus{border-color:#555}.subject-list button.selected small{color:#ddd}.subject-list button small{color:#666;opacity:1}.muted{color:#68686f}.study-clock small{color:#666}#view:focus{outline:none}.reader-pagination button:disabled{cursor:default}.header-actions{min-width:0}.loading{padding:28px;line-height:1.8}.loading::before{content:'';display:inline-block;width:13px;height:13px;border:2px solid #ddd;border-top-color:#333;border-radius:50%;margin-right:10px;animation:loadingSpin .8s linear infinite}@keyframes loadingSpin{to{transform:rotate(360deg)}}
@media(max-width:800px){.menu-open .menu-backdrop{display:block;position:fixed;inset:0;width:100%;height:100%;border:0;border-radius:0;background:#0005;z-index:4}.header-actions{gap:6px}#language-select{max-width:90px;font-size:11px;padding:8px}#profile-button{max-width:130px}header{padding:0 16px;gap:8px}#sync-status{display:none}.subject-list #course-search{min-width:180px;align-self:start}.reader-text{max-height:65dvh}.study-clock{font-size:12px}.reader-toolbar{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.subject-panel{min-width:0}.subject-panel>.eyebrow{display:block;margin-bottom:12px}.subject-panel input:focus{border-color:#555}@media(max-width:760px){.subject-panel>.eyebrow{display:none}.subject-panel #course-search{max-width:none;width:100%}}

.group-actions{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:30px}.group-actions form{display:grid;gap:16px}.group-actions label{display:grid;gap:8px}.group-actions input{width:100%;min-width:0}.group-card{text-align:left;display:grid;gap:14px}.group-code{padding:16px;border:1px solid #ddd;border-radius:14px}.group-code summary{cursor:pointer}.group-code strong{font-size:24px;letter-spacing:5px}.group-messages{height:clamp(250px,48dvh,650px);overflow:auto;overscroll-behavior:contain;padding:12px;display:flex;flex-direction:column;gap:14px;background:#fafafa;border-radius:18px}.group-message{max-width:88%;padding:16px;background:white;border:1px solid #e8e8e8;border-radius:16px;align-self:flex-start;overflow-wrap:anywhere}.group-message.mine{align-self:flex-end;background:#f0f0f2}.group-message-meta{display:flex;gap:20px;align-items:center;font-size:12px}.group-message-meta time{color:#737373}.group-file{display:grid;gap:8px;font-size:12px;color:inherit}.group-file img{max-width:100%;max-height:300px;border-radius:10px;object-fit:contain}.group-upload{font-size:12px;display:grid;gap:8px}.group-privacy{font-size:12px;line-height:1.7}#group-composer{margin-top:12px}#group-composer input{max-width:100%}#sidebar{overflow-y:auto}@media(max-width:760px){.group-actions{grid-template-columns:1fr}.group-message{max-width:96%}.group-message-meta{flex-wrap:wrap;gap:8px}.group-messages{padding:8px}}

#view[data-group-chat=yes]{display:flex;flex-direction:column;gap:10px}#view[data-group-chat=yes]>.page-heading{margin:0;flex-shrink:0}#view[data-group-chat=yes]>.page-heading h1{font-size:24px}#group-back{align-self:flex-start;padding:7px 12px}#view[data-group-chat=yes]>.muted{margin:0;font-size:11px}#view[data-group-chat=yes] .group-messages{flex:1;min-height:150px;height:auto}#view[data-group-chat=yes] .group-code{padding:10px 14px;flex-shrink:0}#view[data-group-chat=yes] #group-composer{margin:0;flex-shrink:0}#group-bot:empty{display:none}#group-bot{margin:0;font-size:12px}.group-upload{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.group-upload input{padding:4px;font-size:11px;flex:1;min-width:160px}.group-privacy{line-height:1.4}

.deck-card{border:1px solid #d5ded9;border-radius:16px;padding:20px;margin:16px 0;background:#f7faf8;max-width:620px}.deck-card-top{display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#596d61}.deck-card h3{font-size:20px;line-height:1.4}.deck-actions{display:flex;flex-wrap:wrap;gap:10px}.deck-actions button,.deck-actions a{border:1px solid #c3d0c7;border-radius:10px;padding:12px 16px;background:#fff;color:#172126;text-decoration:none;font-size:13px}.deck-actions button:hover,.deck-actions a:hover{background:#e5eee8}.deck-card progress{width:100%;accent-color:#356b61}.deck-card p{font-size:14px;line-height:1.6}