/* Teacher-only layout. Student themes and creative surfaces keep their own rules. */
html[data-audience=teacher] .unified-app .sidebar{width:220px;padding:24px 14px 0}
html[data-audience=teacher] .unified-app .main-wrap{margin-left:220px}
html[data-audience=teacher] .unified-app .sidebar .platform-brand{gap:8px}
html[data-audience=teacher] .unified-app .platform-brand-text strong{font-size:22px}
html[data-audience=teacher] .unified-app .platform-brand-icon{width:35px;height:35px}
html[data-audience=teacher] .sidebar .nav-item{min-height:49px;margin:7px 0;font-size:14px;gap:12px}
html[data-audience=teacher] .sidebar .workspace-label{margin-bottom:14px;font-size:10px;letter-spacing:1px}
html[data-audience=teacher] .sidebar .sidebar-bottom{padding:17px 3px}
html[data-audience=teacher] .topbar{height:58px;padding:0 28px}
html[data-audience=teacher] .topbar .identity{display:none}
html[data-audience=teacher] .page-content{padding:27px 28px 22px;max-width:1800px}
.teacher-workspace{color:var(--ui-text);min-width:0}
.teacher-workspace h1,.teacher-workspace h2,.teacher-workspace h3{color:var(--ui-text);margin:0;font-family:inherit}
.tw-workspace-heading{display:flex;justify-content:space-between;align-items:center;margin:0 0 22px}
.tw-section-number{display:block;color:var(--ui-muted);font-size:10px;letter-spacing:.08em;margin-bottom:8px}
.tw-workspace-heading h1{font-size:27px;line-height:1.2;letter-spacing:-.5px}
.tw-workspace-heading p{font-size:12px;line-height:1.6;color:var(--ui-muted);margin:9px 0 0}
.tw-content{min-width:0}
.teacher-workspace .page-heading{margin-bottom:19px}
.teacher-workspace .page-heading h2{font-size:18px;letter-spacing:0}
.teacher-workspace .page-heading p{font-size:12px}
.teacher-workspace .card{background:var(--ui-surface);border:1px solid var(--ui-line);border-radius:12px;box-shadow:none}
.teacher-workspace .section-head{gap:14px;align-items:center;margin-bottom:18px}
.teacher-workspace .section-head h2{font-size:16px;line-height:1.5}
.teacher-workspace .section-head p,.tw-muted{color:var(--ui-muted);font-size:12px;line-height:1.7;margin:5px 0 0}
.teacher-workspace .button{min-height:35px;padding:8px 12px;border-radius:8px;font-size:12px;gap:6px}
.teacher-workspace .button svg{width:15px;height:15px}
.teacher-workspace .button.primary{background:var(--ui-primary);color:var(--ui-on-primary)}
.teacher-workspace input,.teacher-workspace select,.teacher-workspace textarea{background:var(--ui-surface);color:var(--ui-text);border:1px solid var(--ui-line);border-radius:8px}
.teacher-workspace .field>span,.teacher-workspace .field>label{color:var(--ui-text)}
.tw-class-layout{display:grid;grid-template-columns:205px minmax(0,1fr);gap:20px;align-items:start;min-width:0;max-width:100%}
.tw-class-list{padding:18px!important;position:sticky;top:80px}
.tw-class-list .section-head{margin-bottom:14px}
.tw-class-list .section-head .button{padding:6px 8px;font-size:11px;min-height:30px}
.tw-class-maintenance{margin-bottom:13px;padding-bottom:13px;border-bottom:1px solid var(--ui-line)}
.tw-class-maintenance .button{width:100%;font-size:11px}
.tw-class-maintenance p{font-size:10px;line-height:1.6;color:var(--ui-muted);margin:7px 0 0}
.tw-class-list nav{display:flex;flex-direction:column;gap:7px}
.tw-class-list nav a{display:flex;justify-content:space-between;gap:8px;align-items:center;padding:12px 9px;border-radius:8px;text-decoration:none;color:var(--ui-muted);border:1px solid transparent;font-size:12px}
.tw-class-list nav a>span{display:flex;align-items:center;gap:8px;min-width:0}
.tw-class-list nav a svg{width:16px;height:16px;flex-shrink:0}
.tw-class-list nav a strong{font-weight:550;overflow-wrap:anywhere}
.tw-class-list nav a b{font-weight:500;font-size:11px}
.tw-class-list nav a small{font-size:9px;display:block;font-weight:400;margin-top:3px}
.tw-class-list nav a[aria-current=page]{background:var(--ui-soft);color:var(--ui-primary);border-color:var(--ui-line)}
.tw-class-main{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;min-width:0}
.tw-class-main>.card{padding:22px;min-width:0;max-width:100%}
.tw-schedule-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px 17px}
.tw-schedule-fields .field{margin:0;min-width:0}
.tw-schedule-fields .field>span{font-size:12px}
.tw-schedule-fields input,.tw-schedule-fields select{width:100%;min-width:0;height:39px;font-size:12px;padding:8px 10px}
.tw-schedule-footer{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:21px;padding-top:17px;border-top:1px solid var(--ui-line)}
.tw-schedule-footer p{display:flex;align-items:center;gap:6px;color:var(--ui-muted);font-size:11px;margin:0;line-height:1.6}
.tw-schedule-footer p svg{width:14px;height:14px;flex-shrink:0}
.tw-inline-check{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--ui-muted);white-space:nowrap}
.tw-calendar-list{list-style:none;padding:0;margin:0;max-height:330px;overflow-y:auto;scrollbar-width:thin}
.tw-calendar-list li{display:flex;align-items:center;gap:14px;padding:13px 3px;border-top:1px solid var(--ui-line)}
.tw-calendar-list li:first-child{border-top:0;padding-top:0}
.tw-lesson-index{color:var(--ui-muted);font-size:11px;min-width:20px}
.tw-calendar-list li>div{flex:1;min-width:0}
.tw-calendar-list time{display:block;color:var(--ui-muted);font-size:11px;margin-bottom:5px}
.tw-calendar-list strong{color:var(--ui-text);font-size:13px;font-weight:550;display:block;line-height:1.5}
.tw-calendar-list .is-cancelled strong{text-decoration:line-through;color:var(--ui-muted)}
.tw-calendar-list .tw-calendar-enter{flex:none;white-space:nowrap;font-size:11px;min-height:31px;padding:6px 9px}
@media(max-width:520px){.tw-calendar-list li{flex-wrap:wrap;gap:10px}.tw-calendar-list li>div{flex-basis:calc(100% - 36px)}.tw-calendar-list li>.tw-lesson-status{margin-left:30px}.tw-calendar-list .tw-calendar-enter{margin-left:auto}}
.teacher-workspace [data-lesson-phase=draft]{--tw-status-color:#356eb1}
.teacher-workspace [data-lesson-phase=upcoming]{--tw-status-color:#b83b3b}
.teacher-workspace [data-lesson-phase=open]{--tw-status-color:#267548}
.teacher-workspace [data-lesson-phase=ended],.teacher-workspace [data-lesson-phase=cancelled],.teacher-workspace [data-lesson-phase=unknown]{--tw-status-color:#727780}
.teacher-workspace .tw-lesson-status{display:inline-flex;align-items:center;gap:6px;flex:none;padding:5px 9px;border:1px solid color-mix(in srgb,var(--tw-status-color,#727780) 22%,transparent);border-radius:999px;background:color-mix(in srgb,var(--tw-status-color,#727780) 9%,var(--ui-surface));color:var(--tw-status-color,#727780);font-size:11px;font-weight:600;line-height:1.4;white-space:nowrap}
.tw-lesson-status::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor;flex:none}
.teacher-workspace .tw-lesson-picker :is(select,option)[data-lesson-status]{color:var(--tw-status-color,#727780)}
.tw-empty-inline{padding:24px 0;text-align:center;font-size:12px;color:var(--ui-muted);margin:0;line-height:1.8}
.tw-roster .section-head{flex-wrap:wrap}
.tw-roster .table-wrap{width:100%;max-width:100%;overflow-x:auto}
.tw-roster-search{display:flex;align-items:center;gap:8px;border:1px solid var(--ui-line);border-radius:8px;width:min(100%,310px);padding:0 10px;margin:0 0 15px;background:var(--ui-bg)}
.tw-roster-search svg{width:16px;height:16px;color:var(--ui-muted)}
.tw-roster-search input{border:0;background:transparent;box-shadow:none;width:100%;min-width:0;font-size:12px;padding:9px 0}
.tw-roster .data-table{font-size:11px;min-width:780px}
.tw-roster .data-table th{font-size:10px;white-space:nowrap;padding:11px 12px}
.tw-roster .data-table td{padding:13px 12px}
.tw-roster .data-table td:first-child{min-width:125px}
.tw-roster .data-table .avatar{width:29px;height:29px;font-size:12px}
.tw-roster .data-table .button{font-size:10px;padding:6px 7px;min-height:29px}
.tw-roster .data-table .actions{flex-wrap:nowrap}
.tw-decks-stage,.tw-teaching-stage{border:1px solid var(--ui-line);border-radius:12px;overflow:hidden;background:var(--ui-surface)}
.tw-decks-stage iframe,.tw-teaching-stage iframe{border:0;display:block;width:100%;min-height:560px}
.tw-decks-stage iframe{height:calc(100dvh - 115px)}
.tw-teach-bar{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:14px 18px!important;margin-bottom:14px}
.tw-lesson-picker{display:grid;grid-template-columns:auto minmax(200px,480px);align-items:center;gap:7px 13px;flex:1;min-width:0}
.tw-lesson-picker>label{font-size:12px;color:var(--ui-muted)}
.tw-lesson-picker>select{padding:9px 12px;min-width:0;max-width:100%;height:39px;font-size:13px}
.tw-lesson-picker small{font-size:10px;color:var(--ui-muted);grid-column:2}
.tw-lesson-state{display:flex;align-items:center;gap:15px;flex-shrink:0}
.tw-ended{font-size:12px;color:var(--ui-muted)}
.tw-teaching-stage iframe{height:calc(100dvh - 322px);min-height:530px}
.tw-teach #teach-direct-controls:empty{display:none}
.tw-teach #teach-direct-controls{margin-bottom:14px}
.tw-notes-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.tw-note{padding:0!important;overflow:hidden}
.tw-note-preview{display:flex;align-items:center;justify-content:center;border:0;border-bottom:1px solid var(--ui-line);background:var(--ui-bg);cursor:pointer;width:100%;aspect-ratio:16/10;padding:0;color:var(--ui-muted)}
.tw-note-preview img{display:block;width:100%;height:100%;object-fit:contain}
.tw-note>div{padding:15px 17px}
.tw-note h3{font-size:13px;line-height:1.6;overflow-wrap:anywhere}
.tw-note p{font-size:11px;color:var(--ui-muted);margin:6px 0}
.tw-note time{font-size:10px;color:var(--ui-muted)}
.tw-note-full{display:block;width:100%;height:auto;max-height:70dvh;object-fit:contain;background:var(--ui-bg);border-radius:8px}
html[data-audience=teacher][data-teacher-workspace=teach] .page-footer{display:none}
html[data-audience=teacher][data-teacher-workspace=teach] .page-content{max-width:none;padding-top:18px}
.tw-teach .tw-workspace-heading{margin-bottom:16px}
.tw-teach .tw-workspace-heading .tw-section-number,.tw-teach .tw-workspace-heading p{display:none}
.tw-teach .tw-workspace-heading h1{font-size:23px}
html[data-audience=teacher] .tw-prepare:has(.chat-app) .tw-workspace-heading{display:none}
html[data-audience=teacher] .tw-prepare:has(.chat-app) .tw-tabs{margin-bottom:14px}
html[data-audience=teacher] #main.chat-content .teacher-workspace{display:flex;flex-direction:column;flex:1;height:100%;min-height:0}
html[data-audience=teacher] #main.chat-content .tw-tabs{flex-shrink:0}
html[data-audience=teacher] #main.chat-content .tw-content{display:flex;flex-direction:column;flex:1;min-height:0}
html[data-audience=teacher] #main.chat-content .tw-content>.chat-app{flex:1;min-height:0}
@media(min-width:1700px){.tw-notes-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1180px){.tw-class-layout{grid-template-columns:175px minmax(0,1fr);gap:15px}.tw-class-list{padding:14px!important}.tw-class-main>.card{padding:18px}.tw-class-list .section-head{gap:5px}.tw-class-list .section-head h2{font-size:14px}.tw-schedule-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.tw-schedule-footer{align-items:flex-start;flex-direction:column}.tw-teach-bar{align-items:flex-start}.tw-lesson-picker{grid-template-columns:1fr}.tw-lesson-picker small{grid-column:1}.tw-lesson-state{flex-direction:column;align-items:flex-end;gap:9px}.tw-notes-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){html[data-audience=teacher] .unified-app .sidebar{width:170px;padding-left:10px;padding-right:10px}html[data-audience=teacher] .unified-app .main-wrap{margin-left:170px}html[data-audience=teacher] .page-content{padding-left:18px;padding-right:18px}.tw-class-layout{grid-template-columns:1fr}.tw-class-list{position:static}.tw-class-list nav{flex-direction:row;flex-wrap:wrap}.tw-class-list nav a{min-width:110px;flex:1}.tw-class-list .section-head{margin-bottom:6px}.tw-notes-grid{gap:13px}}
@media(max-width:760px){html[data-audience=teacher] .unified-app .sidebar{width:215px;padding:20px 14px}html[data-audience=teacher] .unified-app .main-wrap{margin-left:0}html[data-audience=teacher] .topbar{height:54px;padding:0 18px}.tw-workspace-heading h1{font-size:24px}.tw-workspace-heading{margin-bottom:18px}.tw-tabs{gap:2px;margin-bottom:19px}.tw-tabs a{padding:9px 10px;font-size:11px}.tw-teach-bar{flex-direction:column;gap:12px}.tw-lesson-picker{width:100%}.tw-lesson-state{width:100%;flex-direction:row;justify-content:space-between;align-items:center}.tw-schedule-footer .actions{width:100%;justify-content:space-between}.tw-roster .section-head>.actions{width:100%}.tw-roster .section-head>.actions .button{flex:1;white-space:nowrap;padding:7px 9px;font-size:11px}.tw-notes-grid{grid-template-columns:1fr}.tw-teaching-stage iframe{min-height:620px}.tw-decks-stage iframe{min-height:650px}.tw-teach .tw-workspace-heading h1{font-size:22px}}
@media(prefers-reduced-motion:reduce){.teacher-workspace *{scroll-behavior:auto}}
/* Preparation tasks share one heading and one full-width, ordered work list. */
.tw-task-board{min-width:0;max-width:100%}
.tw-task-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 0 24px}
.tw-task-heading h1{font-size:26px;line-height:1.35;letter-spacing:-.5px}
.tw-task-heading p{font-size:12px;color:var(--ui-muted);line-height:1.7;margin:7px 0 0}
.tw-task-heading>.button{flex:none}
.tw-prep-context{display:flex;align-items:center;flex-wrap:wrap;gap:12px 18px;padding:15px 18px;border:1px solid var(--ui-line);background:var(--ui-surface);border-radius:10px;margin-bottom:27px;min-width:0}
.tw-prep-context>.field{display:flex;flex-direction:row;align-items:center;gap:14px;flex:0 1 490px;min-width:0;margin:0}
.tw-prep-context>.field>span{width:auto;flex:none;font-size:12px;color:var(--ui-muted);white-space:nowrap;text-align:left}
.tw-prep-context select{width:100%;min-width:0;height:38px;font-size:12px;padding:8px 30px 8px 12px;white-space:nowrap;text-overflow:ellipsis}
.tw-prep-context-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;min-width:0}
.tw-prep-context-meta>span:not(.tag){display:flex;align-items:center;gap:6px;color:var(--ui-muted);font-size:11px;overflow-wrap:anywhere;max-width:260px}
.tw-prep-context-meta svg{width:14px;height:14px;flex:none}
.tw-prep-context .tag{font-size:10px;padding:4px 8px;white-space:nowrap}
.tw-prep-settings{flex:none;white-space:nowrap}
.tw-task-list-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:13px}
.tw-task-list-heading h2{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:650;line-height:1.6}
.tw-task-list-heading h2>span{font-size:11px;font-weight:400;color:var(--ui-muted)}
.tw-task-rows{display:flex;flex-direction:column;gap:12px;margin:0;padding:0;list-style:none;min-width:0}
.tw-task-rows>li{min-width:0;list-style:none}
.tw-task-row{display:grid;grid-template-columns:35px minmax(0,1fr) auto;gap:18px;align-items:start;padding:22px;background:var(--ui-surface);border:1px solid var(--ui-line);border-radius:12px;min-width:0}
.tw-task-sequence{display:grid;place-items:center;width:33px;height:33px;background:var(--ui-soft);color:var(--ui-primary);border-radius:8px;font-size:12px;font-variant-numeric:tabular-nums}
.tw-task-main{min-width:0}
.tw-task-title-line{display:flex;align-items:center;flex-wrap:wrap;gap:10px;min-height:33px}
.tw-task-title-line h3{font-size:16px;line-height:1.6;font-weight:650;overflow-wrap:anywhere}
.tw-task-title-line .tag{font-size:10px;padding:3px 7px;flex:none}
.tw-task-description{font-size:12px;line-height:1.85;color:var(--ui-muted);margin:10px 0 0;overflow-wrap:anywhere;max-width:1000px}
.tw-task-steps{display:flex;flex-wrap:wrap;gap:10px 22px;margin:17px 0 0;padding:0;list-style:none}
.tw-task-steps>li{display:flex;align-items:flex-start;gap:8px;min-width:0;flex:0 1 205px;list-style:none}
.tw-task-step-index{display:grid;place-items:center;flex:none;width:19px;height:19px;margin-top:2px;border:1px solid var(--ui-line);border-radius:50%;color:var(--ui-muted);font-size:9px;font-variant-numeric:tabular-nums}
.tw-task-steps>li>div{min-width:0}
.tw-task-steps small{display:block;font-size:9px;color:var(--ui-muted);line-height:1.4;margin:0 0 3px}
.tw-task-steps strong{display:block;font-size:12px;font-weight:500;color:var(--ui-text);line-height:1.65;overflow-wrap:anywhere}
.tw-task-attribution{display:flex;align-items:center;flex-wrap:wrap;gap:7px;font-size:10px;color:var(--ui-muted);line-height:1.7;margin:16px 0 0}
.tw-task-actions{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding-top:0;max-width:185px;justify-content:flex-end}
.teacher-workspace .tw-task-actions>.button{min-height:32px;font-size:11px;padding:7px 9px;white-space:nowrap}
.tw-task-empty{padding:22px;background:var(--ui-surface);border:1px dashed var(--ui-line);border-radius:12px}
.tw-task-empty .empty{padding:34px 16px}
.tw-task-empty .empty h3{font-size:15px}
.tw-task-empty .empty p{font-size:12px}
@media(max-width:1120px){.tw-prep-context>.field{flex-basis:390px}.tw-task-row{grid-template-columns:31px minmax(0,1fr);gap:12px 15px;padding:19px}.tw-task-actions{grid-column:2;max-width:none;justify-content:flex-start}.tw-task-steps{margin-top:14px;gap:12px 20px}}
@media(max-width:760px){.tw-task-heading{align-items:flex-start;margin-bottom:19px;gap:12px}.tw-task-heading h1{font-size:23px}.tw-task-heading p{font-size:11px;max-width:230px}.teacher-workspace .tw-task-heading>.button{font-size:11px;padding:8px 10px;min-height:35px}.tw-prep-context{gap:11px 12px;padding:13px;margin-bottom:22px}.tw-prep-context>.field{flex-basis:100%;gap:12px}.tw-prep-context select{height:37px;font-size:11px}.tw-prep-context-meta{flex:1;gap:8px}.tw-prep-context-meta>span:not(.tag){font-size:10px;max-width:210px}.teacher-workspace .tw-prep-settings{font-size:10px;padding:5px 7px;min-height:30px}.tw-task-row{padding:16px;grid-template-columns:27px minmax(0,1fr);gap:10px 12px}.tw-task-sequence{width:27px;height:29px;border-radius:7px;font-size:10px}.tw-task-title-line{min-height:29px;gap:6px}.tw-task-title-line h3{font-size:15px}.tw-task-title-line .tag{font-size:9px}.tw-task-description{font-size:12px}.tw-task-steps>li{flex-basis:100%}.tw-task-steps{gap:13px}.tw-task-steps small{font-size:9px}.tw-task-steps strong{font-size:12px}.tw-task-list-heading h2{font-size:14px}}

/* One teacher navigation tree; the content column only holds the active tool. */
.tw-sidebar-nav{display:flex;flex-direction:column;gap:8px;padding:10px 0 20px}
.tw-nav-section{min-width:0}
.tw-nav-toggle{display:flex;align-items:center;gap:11px;width:100%;padding:13px 12px;min-height:46px;border:1px solid transparent;border-radius:9px;background:transparent;color:var(--ui-muted);font:inherit;font-size:13px;text-align:left;cursor:pointer}
.tw-nav-toggle>span{flex:1;font-weight:550}
.tw-nav-toggle>svg{width:18px;height:18px;flex:none}
.tw-nav-toggle>svg:last-child{width:13px;height:13px;transition:transform .16s}
.tw-nav-toggle[aria-expanded=true]>svg:last-child{transform:rotate(90deg)}
.tw-nav-toggle:hover{background:var(--ui-soft);color:var(--ui-text)}
.tw-nav-section.is-current>.tw-nav-toggle{background:var(--ui-soft);color:var(--ui-primary)}
.tw-nav-children{margin:5px 0 6px 21px;padding:0 0 0 9px;border-left:1px solid var(--ui-line)}
.tw-nav-children[hidden]{display:none}
.tw-subnav-item{display:flex;align-items:center;gap:9px;min-height:38px;padding:9px 9px;color:var(--ui-muted);font-size:12px;line-height:1.5;border-radius:7px;text-decoration:none;overflow-wrap:anywhere}
.tw-subnav-item svg{width:14px;height:14px;flex:none}
.tw-subnav-item:hover{color:var(--ui-text);background:var(--ui-soft)}
.tw-subnav-item[aria-current=page]{color:var(--ui-primary);background:var(--ui-soft);font-weight:650}
.tw-nav-toggle:focus-visible,.tw-subnav-item:focus-visible{outline:2px solid var(--ui-primary);outline-offset:2px}
@media(max-width:900px) and (min-width:761px){html[data-audience=teacher] .unified-app .sidebar{width:200px}html[data-audience=teacher] .unified-app .main-wrap{margin-left:200px}}
@media(prefers-reduced-motion:reduce){.tw-nav-toggle>svg:last-child{transition:none}}

.tw-resource-choice{display:block;margin:6px 9px 12px;padding:0;color:var(--ui-muted);font-size:10px}.tw-resource-choice[hidden]{display:none}.tw-resource-choice>span{display:block;margin-bottom:6px}.tw-resource-choice select{display:block;width:100%;min-width:0;padding:9px 5px;border:1px solid var(--ui-line);border-radius:6px;background:var(--ui-surface);color:var(--ui-text);font:inherit;font-size:11px}

html[data-audience=teacher] .sidebar .platform-brand{margin-bottom:22px}.tw-sidebar-nav{gap:5px;padding-top:0}.tw-subnav-item{min-height:32px;padding:7px 9px}.tw-nav-toggle{min-height:42px;padding:11px 12px}.tw-nav-children{margin-top:3px;margin-bottom:4px}.tw-resource-choice{margin-top:4px;margin-bottom:8px}

/* Classroom controls share one line, leaving the slide area the available height. */
.tw-live-toolbar{padding:8px 10px!important;margin-bottom:10px;min-width:0}
.tw-live-toolbar-strip{display:flex;align-items:center;gap:10px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:thin;min-height:36px}
.tw-live-toolbar .tw-lesson-picker{display:block;flex:0 1 255px;min-width:170px}
.tw-live-toolbar .tw-lesson-picker select{height:34px;width:100%;font-size:12px;padding:7px 22px 7px 8px}
.tw-live-toolbar .tw-lesson-state,.tw-live-toolbar .actions{display:flex;align-items:center;flex-wrap:nowrap;gap:7px;flex-shrink:0}
.tw-live-toolbar .button{min-height:32px;padding:7px 9px;font-size:11px;white-space:nowrap}
.tw-live-toolbar #teach-direct-controls{margin:0;flex:1 0 auto}
.tw-live-toolbar .live-controls-row,.tw-live-toolbar .live-class-switches{flex-wrap:nowrap;gap:9px}
.tw-live-toolbar .live-class-switches{flex:none}
.tw-live-toolbar .live-class-switches>strong{display:none}
.tw-live-toolbar .live-permission{font-size:11px!important;gap:4px!important}
.tw-live-toolbar .live-permission input{width:15px;height:15px;flex:none}
.tw-live-toolbar .live-control-hint{display:none}
.tw-live-toolbar .live-individual{position:fixed;z-index:120;top:118px;right:24px;width:min(750px,calc(100vw - 40px));margin:0;padding:12px 16px;background:var(--ui-surface);border:1px solid var(--ui-line);border-radius:12px;box-shadow:0 14px 50px #0c162b33}
.tw-live-toolbar .live-individual[hidden]{display:none}
.tw-teach .tw-teaching-stage iframe{height:calc(100dvh - 155px);min-height:460px}
html[data-audience=teacher][data-teacher-workspace=teach] .page-content{padding-top:12px}
@media(max-width:760px){.tw-live-toolbar{padding:7px 8px!important}.tw-live-toolbar-strip{gap:8px}.tw-live-toolbar .tw-lesson-picker{min-width:175px}.tw-live-toolbar .live-individual{right:12px;top:110px;width:calc(100vw - 24px)}.tw-teach .tw-teaching-stage iframe{height:calc(100dvh - 145px);min-height:460px}}

.tw-live-toolbar .live-permission-head{display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:13px;margin-bottom:5px}.tw-live-toolbar .live-permission-head button{font:inherit;font-size:24px;border:0;background:transparent;color:var(--ui-muted);cursor:pointer}.tw-live-toolbar .live-permission-table{max-height:calc(100dvh - 200px)}
.tw-live-toolbar .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

.tw-naming-preview{padding:12px 14px;border-radius:8px;background:var(--ui-soft);color:var(--ui-text);font-size:14px;line-height:1.6;overflow-wrap:anywhere;margin:0 0 16px}.tw-class-naming{grid-template-columns:1fr 1fr 85px;align-items:start}.tw-naming-options{padding:13px 0;margin:0 0 14px;border-bottom:1px solid var(--ui-line)}.tw-naming-options summary{font-size:12px;color:var(--ui-primary);cursor:pointer}.tw-naming-options[open] summary{margin-bottom:16px}@media(max-width:600px){.tw-class-naming{grid-template-columns:1fr}.tw-naming-preview{font-size:13px}}

/* Icon mode reuses the same navigation links in a compact, accessible flyout. */
.tw-sidebar-header{--tw-topbar-center:29px;--tw-sidebar-inset:24px;display:flex;align-items:center;gap:8px;margin-bottom:22px;min-width:0}
html[data-audience=teacher] .sidebar .tw-sidebar-header .platform-brand{margin:0;min-width:0;flex:1}
/* Keep the toggle centered on the top breadcrumb while the brand keeps its own spacing. */
.tw-sidebar-mode-button{position:relative;align-self:flex-start;top:calc(var(--tw-topbar-center) - var(--tw-sidebar-inset));transform:translateY(-50%);display:grid;place-items:center;flex:none;width:29px;height:29px;padding:5px;border:1px solid var(--ui-line);border-radius:7px;background:var(--ui-surface);color:var(--ui-muted);cursor:pointer}
.tw-sidebar-mode-button>svg{width:18px;height:18px}
.tw-sidebar-mode-button:hover,.tw-sidebar-mode-button:focus-visible{color:var(--ui-primary);background:var(--ui-soft)}
.tw-sidebar-mode-button .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.tw-popover-title{display:none}
.tw-sidebar-mode-button::after{content:attr(data-tooltip);display:none;position:absolute;right:0;top:calc(100% + 8px);width:max-content;max-width:200px;padding:7px 10px;background:var(--ui-text);color:var(--ui-surface);border-radius:6px;font-size:11px;font-weight:400;line-height:1.5;white-space:nowrap;pointer-events:none;z-index:250;box-shadow:0 5px 18px #0b162626}
.tw-sidebar-mode-button:hover::after,.tw-sidebar-mode-button:focus-visible::after{display:block}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons]>.sidebar{width:64px;padding:20px 8px 0}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons]>.main-wrap{margin-left:64px;min-width:0}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-sidebar-header{--tw-sidebar-inset:20px;justify-content:center;margin-bottom:22px}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-sidebar-header .platform-brand{display:none}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-sidebar-mode-button{width:34px;height:34px;padding:7px}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-sidebar-mode-button::after{right:auto;left:calc(100% + 13px);top:50%;transform:translateY(-50%)}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-sidebar-nav{gap:9px}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-nav-toggle{justify-content:center;width:46px;height:46px;min-height:46px;gap:0;padding:13px;border-radius:9px}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-nav-toggle>svg:first-child{width:20px;height:20px}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-nav-toggle>span,html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-nav-toggle>svg:last-child{display:none}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-nav-toggle[aria-expanded=true]{box-shadow:inset 0 0 0 1px var(--ui-primary);color:var(--ui-primary);background:var(--ui-soft)}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-nav-toggle::after,html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account::after{content:attr(data-tooltip);position:fixed;left:73px;top:var(--tw-tooltip-top,100px);transform:translateY(-50%);display:none;width:max-content;max-width:220px;padding:7px 10px;border:1px solid var(--ui-line);border-radius:7px;background:var(--ui-surface);color:var(--ui-text);font-size:12px;line-height:1.5;font-weight:500;white-space:nowrap;pointer-events:none;box-shadow:0 5px 22px #1023431c;z-index:210}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-nav-toggle[aria-expanded=false]:is(:hover,:focus-visible)::after,html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account:is(:hover,:focus-visible)::after{display:block}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-nav-children{position:fixed;left:72px;top:80px;z-index:200;width:248px;max-width:calc(100vw - 84px);max-height:calc(100dvh - 32px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;margin:0;padding:10px;border:1px solid var(--ui-line);border-radius:11px;background:var(--ui-surface);box-shadow:0 12px 38px #101b3533}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-nav-children[hidden]{display:none}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-popover-title{display:block;padding:5px 9px 11px;margin:0 0 4px;border-bottom:1px solid var(--ui-line);font:inherit;font-size:12px;font-weight:650;color:var(--ui-text)}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-subnav-item{min-height:37px;padding:9px}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-bottom{padding:16px 2px;margin-top:12px}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account{justify-content:center;padding:0;gap:0}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account>span:nth-child(2),html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account>svg{display:none}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account .avatar{width:34px;height:34px;border:1px solid transparent}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account[aria-current=page] .avatar{border-color:var(--ui-primary)}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account::after{top:auto;bottom:22px;transform:none}
@media(max-width:760px){html[data-audience=teacher] .unified-app[data-sidebar-mode=icons]>.main-wrap{margin-left:0}html[data-audience=teacher] .unified-app[data-sidebar-mode=icons]>.sidebar{padding-top:16px}html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .tw-sidebar-header{--tw-sidebar-inset:16px}.tw-sidebar-header{--tw-topbar-center:27px;--tw-sidebar-inset:20px;gap:5px}.tw-sidebar-mode-button{width:28px;height:28px}}

/* The account entry follows the same row and icon treatment as the main menu. */
html[data-audience=teacher] .sidebar .sidebar-bottom{padding:12px 0}
html[data-audience=teacher] .sidebar .sidebar-account{display:flex;align-items:center;justify-content:flex-start;gap:11px;width:100%;min-height:42px;margin:0;padding:11px 12px;border:1px solid transparent;border-radius:9px;font:inherit;font-size:13px;color:var(--ui-muted);text-decoration:none}
html[data-audience=teacher] .sidebar .sidebar-account>svg{width:18px;height:18px;flex:none}
html[data-audience=teacher] .sidebar .sidebar-account>span{font-weight:550}
html[data-audience=teacher] .sidebar .sidebar-account:hover{background:var(--ui-soft);color:var(--ui-text)}
html[data-audience=teacher] .sidebar .sidebar-account[aria-current=page]{background:var(--ui-soft);color:var(--ui-primary)}
html[data-audience=teacher] .sidebar .sidebar-account:focus-visible{outline:2px solid var(--ui-primary);outline-offset:2px}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-bottom{padding:16px 0}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account{width:46px;height:46px;min-height:46px;justify-content:center;gap:0;padding:12px}
html[data-audience=teacher] .unified-app[data-sidebar-mode=icons] .sidebar-account>svg{display:block;width:20px;height:20px}

/* Published classroom work and its review queue share the teacher's gallery. */
.teacher-workspace .tw-showcase-nav{display:flex;align-items:center;flex-wrap:wrap;gap:5px;width:fit-content;max-width:100%;padding:5px;margin:0 0 22px;border:1px solid var(--ui-line);border-radius:11px;background:var(--ui-surface)}
.teacher-workspace .tw-showcase-nav a{display:flex;align-items:center;justify-content:center;gap:7px;min-height:36px;padding:8px 15px;border-radius:7px;color:var(--ui-muted);font-size:13px;font-weight:600;text-decoration:none;white-space:nowrap}
.teacher-workspace .tw-showcase-nav a svg{width:16px;height:16px;flex:none}
.teacher-workspace .tw-showcase-nav a:hover{background:var(--ui-soft);color:var(--ui-primary)}
.teacher-workspace .tw-showcase-nav a[aria-current=page]{background:var(--ui-primary);color:var(--ui-on-primary,#fff)}
.teacher-workspace .tw-showcase-nav a:focus-visible{outline:2px solid var(--ui-primary);outline-offset:2px}

/* Account settings and classroom tools share clear, local navigation. */
.teacher-workspace .tw-workspace-nav{display:flex;align-items:center;flex-wrap:wrap;gap:4px;width:fit-content;max-width:100%;padding:5px;margin:0 0 18px;border:1px solid var(--ui-line);border-radius:11px;background:var(--ui-surface);flex:none}
.teacher-workspace .tw-workspace-nav a{display:flex;align-items:center;justify-content:center;gap:7px;min-height:44px;padding:9px 14px;border-radius:7px;color:var(--ui-muted);font-size:13px;font-weight:600;line-height:1.5;text-decoration:none;white-space:nowrap}
.teacher-workspace .tw-workspace-nav a svg{width:16px;height:16px;flex:none}
.teacher-workspace .tw-workspace-nav a:hover{background:var(--ui-soft);color:var(--ui-primary)}
.teacher-workspace .tw-workspace-nav a[aria-current=page]{background:var(--ui-primary);color:var(--ui-on-primary)}
.teacher-workspace .tw-workspace-nav a:focus-visible,.tw-teach-return:focus-visible{outline:2px solid var(--ui-primary);outline-offset:2px}
.tw-teach .tw-teaching-stage iframe{height:calc(100dvh - 225px);min-height:420px}
.tw-ai-context{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:0 0 12px;flex:none;min-width:0}
.tw-teach-return{display:inline-flex;align-items:center;gap:6px;min-height:34px;color:var(--ui-primary);font-size:12px;text-decoration:none;white-space:nowrap}
.tw-teach-return svg{width:15px;height:15px;transform:rotate(180deg);flex:none}
.tw-ai-context>span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ui-muted);font-size:11px}
.chat-content .teacher-workspace.tw-teach{display:flex;flex-direction:column;height:100%;min-height:0}
.chat-content .tw-teach>.tw-content{display:flex;flex:1;flex-direction:column;min-height:0}
.tw-ai-workspace{display:flex;flex-direction:column;flex:1;height:100%;min-height:0;min-width:0}
.tw-ai-workspace .tw-workspace-nav{margin-bottom:12px}
.tw-ai-workspace .tw-live-toolbar{flex:none}
.tw-ai-stage{flex:1;min-height:0;min-width:0}
.tw-ai-stage .chat-app{height:100%;min-height:0}
.unified-app.chat-focused .tw-ai-workspace>:is(.tw-workspace-nav,.tw-live-toolbar,.tw-ai-context){display:none}
.unified-app.chat-focused #main.chat-content:has(.tw-ai-workspace){height:100dvh;max-width:none;width:100%;padding:10px 18px 0}
.unified-app.chat-focused .tw-ai-stage{height:100%;overflow:hidden}
.chat-teaching-return{display:none;align-items:center;min-height:36px;padding:7px 10px;border:1px solid var(--ui-line);border-radius:8px;font-size:12px;color:var(--ui-primary);text-decoration:none;white-space:nowrap}
.unified-app.chat-focused .chat-teaching-return{display:inline-flex}
.chat-teaching-return:focus-visible{outline:2px solid var(--ui-primary);outline-offset:2px}
@media(max-width:600px){.unified-app.chat-focused #main.chat-content:has(.tw-ai-workspace){padding:8px 10px 0}.chat-teaching-return{padding:6px 8px;font-size:11px}}
@media(max-width:760px){.teacher-workspace .tw-workspace-nav{width:100%;gap:3px;padding:4px}.teacher-workspace .tw-workspace-nav a{flex:1 0 auto;padding:9px 11px;font-size:12px}.tw-teach .tw-teaching-stage iframe{height:calc(100dvh - 255px);min-height:400px}.tw-ai-context{gap:10px;margin-bottom:8px}.tw-ai-context>span{max-width:55%}.tw-teach-return{min-height:44px}}

/* Lesson time and task dispatch stay beside the current classroom. */
.tw-live-toolbar .tw-end-lesson{color:#a43131;border-color:#d9aaa4;background:#fff5f2;font-weight:700}
.tw-live-toolbar .tw-end-lesson:hover{background:#fbe4de}
.tw-lesson-clock{display:flex;align-items:center;flex-wrap:wrap;gap:7px 18px;padding-top:12px;margin-top:12px;border-top:1px solid var(--ui-line);font-size:12px;color:var(--ui-muted);font-variant-numeric:tabular-nums}
.tw-lesson-clock>strong{color:var(--ui-text);font-size:13px}
.tw-lesson-clock .is-grace{color:#a44b20;font-weight:700}
.tw-recent-lessons{margin-top:10px;font-size:12px;color:var(--ui-muted)}
.tw-recent-lessons>summary{cursor:pointer;width:fit-content;padding:4px 0}
.tw-recent-lessons nav{display:grid;gap:5px;padding-top:6px}
.tw-recent-lessons a{display:flex;justify-content:space-between;gap:14px;padding:8px;border-radius:6px;color:var(--ui-text);text-decoration:none;background:var(--ui-soft)}
.tw-recent-lessons a>span{color:var(--ui-primary);white-space:nowrap}
.tw-classroom-challenges{flex:none;margin:0 0 16px;padding:14px 16px!important}
.tw-challenge-publish{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.tw-challenge-publish>label{font-size:13px;font-weight:700;white-space:nowrap}
.tw-challenge-publish>select{flex:1;min-width:160px;max-width:420px;margin:0;min-height:38px;font-size:13px}
.tw-challenge-publish>.button{min-height:38px;padding:8px 12px;font-size:12px}
.tw-challenge-error{font-size:12px;line-height:1.6;color:#a43131;margin:8px 0}
.tw-challenge-error:empty{display:none}
.tw-challenge-progress{margin-top:10px;font-size:12px}
.tw-challenge-progress>summary{cursor:pointer;padding:6px 0;color:var(--ui-muted);font-weight:600}
.tw-challenge-progress>summary>span{margin-left:12px;font-weight:400}
#tw-challenge-items{display:grid;gap:12px;margin-top:10px;max-height:360px;overflow:auto;overscroll-behavior:contain}
.tw-challenge-item{padding:12px;border:1px solid var(--ui-line);border-radius:8px}
.tw-challenge-item>header{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.tw-challenge-item>header>strong{flex:1;color:var(--ui-text);font-size:13px}
.tw-challenge-item>header>.button{font-size:11px;min-height:30px;padding:5px 9px}
.tw-challenge-item>header>span{color:var(--ui-muted)}
.tw-challenge-counts{display:flex;flex-wrap:wrap;gap:7px 16px;padding:10px 0;color:var(--ui-muted)}
.tw-challenge-counts b{color:var(--ui-text);font-variant-numeric:tabular-nums}
.tw-challenge-item>ul{list-style:none;margin:0;padding:0}
.tw-challenge-item li{display:grid;grid-template-columns:minmax(80px,1fr) 80px 75px;gap:8px;border-top:1px solid var(--ui-line);padding:7px 0;color:var(--ui-muted)}
.tw-challenge-item li>span:first-child{color:var(--ui-text);overflow-wrap:anywhere}
.tw-ai-workspace .tw-classroom-challenges{margin-bottom:12px}
.unified-app.chat-focused .tw-ai-workspace>.tw-classroom-challenges{display:none}
@media(max-width:700px){.tw-classroom-challenges{padding:12px!important}.tw-challenge-publish>label{width:100%}.tw-challenge-publish>select{min-width:100%;max-width:none}.tw-lesson-clock{gap:7px 12px}.tw-lesson-clock>strong{width:100%}.tw-challenge-publish>.button{min-height:42px}.tw-teach .tw-teaching-stage iframe{height:calc(100dvh - 350px);min-height:400px}}

/* The parent controls and the embedded courseware library share one left rail. */
html[data-audience=teacher] .unified-app:has(.tw-classroom-workspace)>.main-wrap>.topbar{height:44px;padding:0 16px;flex:none}
html[data-audience=teacher] .unified-app:has(.tw-classroom-workspace) .tw-sidebar-header{--tw-topbar-center:22px}
html[data-audience=teacher] .page-content:has(.tw-classroom-workspace){height:calc(100dvh - 44px);padding:0!important;max-width:none;overflow:hidden}
#page:has(.tw-classroom-workspace),.tw-teach:has(.tw-classroom-workspace),.tw-teach>.tw-content:has(.tw-classroom-workspace){height:100%;min-height:0}
.tw-classroom-workspace{--tw-teach-rail-width:clamp(180px,24vw,236px);position:relative;width:100%;height:100%;min-width:0;min-height:0;overflow:hidden;background:var(--ui-surface)}
.tw-classroom-workspace>.tw-teaching-stage{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:0;overflow:hidden}
.tw-classroom-workspace>.tw-teaching-stage>iframe{display:block;width:100%;height:100%;min-height:0;border:0}
.tw-classroom-rail{position:absolute;z-index:5;top:0;left:0;width:var(--tw-teach-rail-width);max-height:56%;padding:10px 11px;border-right:1px solid var(--ui-line);border-bottom:1px solid var(--ui-line);overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;background:var(--ui-surface);box-shadow:2px 1px 8px #10234308}
.tw-classroom-rail>.tw-teach-nav{display:flex;flex-direction:column;align-items:stretch;gap:3px;width:100%;padding:0 0 9px;margin:0 0 10px;border:0;border-bottom:1px solid var(--ui-line);border-radius:0;background:transparent}
.tw-classroom-rail>.tw-teach-nav>a{justify-content:flex-start;min-height:29px;padding:5px 8px;font-size:11px;line-height:1.5;white-space:normal}
.tw-classroom-rail>.tw-teach-nav>a>svg{width:14px;height:14px}
.tw-classroom-rail .tw-live-toolbar{padding:0!important;margin:0;border:0;border-radius:0;background:transparent}
.tw-classroom-rail .tw-live-toolbar-strip{display:flex;flex-direction:column;align-items:stretch;gap:8px;min-height:0;overflow:visible}
.tw-classroom-rail .tw-live-toolbar .tw-lesson-picker{display:block;width:100%;flex:none;min-width:0}
.tw-classroom-rail .tw-lesson-picker select{width:100%;height:34px;font-size:11px}
.tw-classroom-rail .tw-lesson-state{display:block;width:100%;flex:none}
.tw-classroom-rail .tw-lesson-state>.actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;width:100%}
.tw-classroom-rail .tw-lesson-state .tw-lesson-status{grid-column:1/-1;justify-self:start;font-size:10px;padding:4px 7px}
.tw-classroom-rail .tw-lesson-state .button{justify-content:center;min-width:0;min-height:31px;font-size:10px;padding:6px 5px;white-space:normal}
.tw-classroom-rail .tw-lesson-clock{display:flex;flex-direction:column;align-items:flex-start;gap:4px;margin-top:9px;padding-top:9px;font-size:10px;line-height:1.5}
.tw-classroom-rail .tw-lesson-clock>strong{font-size:11px}
.tw-classroom-rail :is(.tw-rail-permissions,.tw-rail-challenges,.tw-recent-lessons){margin-top:9px;border-top:1px solid var(--ui-line);font-size:11px}
.tw-classroom-rail :is(.tw-rail-permissions,.tw-rail-challenges,.tw-recent-lessons)>summary{padding:9px 1px;cursor:pointer;color:var(--ui-text);font-weight:600;line-height:1.5}
.tw-classroom-rail #teach-direct-controls{margin:0;padding-bottom:4px;width:100%;min-width:0}
.tw-classroom-rail .live-controls-row{display:flex;flex-wrap:wrap;gap:7px;min-width:0}
.tw-classroom-rail .live-class-switches{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;width:100%;flex:none}
.tw-classroom-rail .live-class-switches>strong{display:block;grid-column:1/-1;font-size:10px}
.tw-classroom-rail .live-permission{font-size:10px!important;gap:4px!important;min-width:0}
.tw-classroom-rail .live-permission input{width:14px;height:14px}
.tw-classroom-rail .live-controls-row>.button{flex:1;padding:6px 5px;font-size:10px;min-height:30px}
.tw-classroom-rail .live-control-hint{display:block;font-size:10px;line-height:1.5;margin:7px 0 0;color:var(--ui-muted)}
.tw-classroom-rail .live-individual{position:static;inset:auto;width:100%;max-width:100%;padding:9px 0;margin:8px 0 0;border:0;border-top:1px solid var(--ui-line);border-radius:0;box-shadow:none}
.tw-classroom-rail .live-permission-table{max-width:100%;max-height:230px;overflow:auto}
.tw-classroom-rail .live-permission-head{font-size:11px;gap:6px}
.tw-classroom-rail .tw-classroom-challenges{padding:0!important;margin:0;border:0;border-radius:0;background:transparent}
.tw-classroom-rail .tw-challenge-publish{display:flex;flex-direction:column;align-items:stretch;gap:7px}
.tw-classroom-rail .tw-challenge-publish>label{font-size:11px;width:100%}
.tw-classroom-rail .tw-challenge-publish>select{width:100%;min-width:0;max-width:none;min-height:32px;font-size:11px;padding:6px}
.tw-classroom-rail .tw-challenge-publish>.button{width:100%;font-size:10px;min-height:31px;padding:6px}
.tw-classroom-rail .tw-challenge-publish>.tw-muted,.tw-classroom-rail .tw-challenge-error{font-size:10px;line-height:1.5}
.tw-classroom-rail .tw-challenge-progress{font-size:10px;margin-top:8px}
.tw-classroom-rail .tw-challenge-progress>summary>span{margin-left:6px}
.tw-classroom-rail #tw-challenge-items{max-height:250px;gap:7px}
.tw-classroom-rail .tw-challenge-item{padding:7px}
.tw-classroom-rail .tw-challenge-item>header{gap:5px}
.tw-classroom-rail .tw-challenge-item>header>strong{font-size:11px;flex-basis:100%;overflow-wrap:anywhere}
.tw-classroom-rail .tw-challenge-item li{grid-template-columns:minmax(0,1fr) 44px 42px;gap:4px;font-size:9px}
.tw-classroom-rail .tw-challenge-counts{gap:5px 9px}
.tw-classroom-rail .tw-recent-lessons a{flex-wrap:wrap;gap:6px;font-size:10px}
.tw-classroom-rail .notice{padding:8px;font-size:10px;line-height:1.6}

/* Each classroom tab changes the right pane while keeping its control rail mounted. */
.tw-classroom-workspace>#tw-teach-pane{position:absolute;z-index:2;inset:0 0 0 var(--tw-teach-rail-width);background:var(--ui-surface);min-width:0;min-height:0;overflow:hidden}
.tw-classroom-workspace>#tw-teach-pane:is([data-room-view=tasks],[data-room-view=ai]){left:var(--tw-teach-rail-width);border-left:1px solid var(--ui-line)}
#tw-teach-pane[data-room-view=tasks]{overflow:auto;overscroll-behavior:contain;padding:18px}
#tw-teach-pane[data-room-view=tasks]>.tw-task-workspace{min-width:0;max-width:1400px;margin:0 auto}
#tw-teach-pane[data-room-view=ai]>.tw-ai-workspace{height:100%;padding:8px 12px 0}
#tw-teach-pane .tw-ai-stage{height:100%;overflow:hidden}
#tw-teach-pane .chat-app{height:100%;min-height:0}
#main.chat-content #tw-teach-pane .chat-app[data-room-focus=true]{--chat-history-width:0px;--chat-balance-width:0px}
#main.chat-content #tw-teach-pane .chat-app[data-room-focus=true]>.chat-history,#main.chat-content #tw-teach-pane .chat-app[data-room-focus=true]>.chat-balance{display:none}
#tw-teach-pane[hidden]{display:none!important}
#tw-lesson-current{margin:6px 0 0;font-size:10px;line-height:1.5;color:var(--ui-muted);overflow-wrap:anywhere}
.tw-classroom-rail .tw-lesson-manage{display:inline-block;margin-top:5px;color:var(--ui-primary);font-size:10px;text-decoration:none}
.tw-nav-direct{color:inherit;text-decoration:none}
.tw-nav-direct[aria-current=page]{background:var(--ui-soft);color:var(--ui-primary)}
.tw-nav-direct:focus-visible{outline:2px solid var(--ui-primary);outline-offset:2px}
@media(max-width:600px){#tw-teach-pane[data-room-view=tasks]{padding:10px}#tw-teach-pane[data-room-view=ai]>.tw-ai-workspace{padding:6px 6px 0}}

.tw-classroom-rail #tw-hand-count{float:right;font-size:10px;font-weight:600;color:var(--ui-muted)}
.tw-classroom-rail #tw-hand-count[data-pending=true]{color:#bd4d24}
.tw-classroom-rail .tw-lesson-picker>.button{margin-top:6px;width:100%;justify-content:center}

/* The lesson state and its primary action form one control; the calendar keeps its badges. */
.teacher-workspace .tw-lesson-primary{display:inline-flex;align-items:center;justify-content:center;gap:7px;color:var(--tw-status-color,#727780);border:1px solid color-mix(in srgb,var(--tw-status-color,#727780) 40%,transparent);background:color-mix(in srgb,var(--tw-status-color,#727780) 10%,var(--ui-surface));font-weight:650;line-height:1.5}
.teacher-workspace .tw-lesson-primary:not(:disabled):hover{background:color-mix(in srgb,var(--tw-status-color,#727780) 17%,var(--ui-surface));border-color:var(--tw-status-color,#727780)}
.teacher-workspace .tw-lesson-primary:focus-visible{outline:2px solid var(--tw-status-color,#727780);outline-offset:2px}
.teacher-workspace .tw-lesson-primary:disabled{opacity:1;cursor:default}
.tw-classroom-rail .tw-lesson-state .tw-lesson-primary{grid-column:1/-1;min-height:34px;padding:7px 8px}
.tw-classroom-rail .tw-lesson-state .tw-end-lesson{grid-column:1/-1;min-height:27px;padding:4px 7px;font-weight:500}
.tw-lesson-state [data-lesson-end-slot]{display:contents}
.tw-classroom-rail .tw-lesson-state .tw-exit-room{grid-column:1/-1;min-height:27px;padding:4px 7px;font-weight:500}

/* Dispatch and its progress belong beside each task, with no second task selector. */
.tw-task-row>.tw-task-challenge{grid-column:2/-1;min-width:0;margin-top:2px;padding-top:14px;border-top:1px solid var(--ui-line)}
.tw-task-dispatch{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.tw-task-dispatch>.tw-muted{font-size:11px;line-height:1.6}
.tw-task-progress{margin-top:12px;font-size:12px}
.tw-task-progress>summary{cursor:pointer;padding:5px 0;color:var(--ui-muted)}
.tw-task-progress>summary>span{margin-left:12px;font-size:11px}
[data-task-challenge-progress]{display:grid;gap:10px;margin-top:10px;min-width:0}
.tw-task-progress .tw-challenge-item{background:var(--ui-soft)}
.tw-task-progress .tw-challenge-item>header>strong{font-size:12px}
#tw-challenge-error{margin:0 0 12px}
#tw-challenge-error:empty{display:none}

/* Class entry and courseware share their existing class context. */
.tw-class-list-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:2px;border-radius:8px;margin-bottom:3px}
.tw-class-list-row.is-selected{background:var(--ui-soft)}
.tw-class-list-row>a:first-child{min-width:0;margin:0}
.tw-class-list nav .tw-class-enter{display:grid;place-items:center;width:30px;min-height:34px;padding:5px;color:var(--ui-primary);border-radius:6px}
.tw-class-enter svg{width:15px;height:15px}.tw-class-enter>span{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.tw-class-enter:focus-visible{outline:2px solid var(--ui-primary);outline-offset:1px}
.tw-room-entry-notice{margin:24px auto;max-width:760px}
.tw-classroom-rail:has(.tw-room-library){bottom:0;max-height:none;display:flex;flex-direction:column;overflow:auto;border-bottom:0;box-shadow:none}
.tw-classroom-rail:has(.tw-room-library)>.tw-teach-nav,.tw-classroom-rail:has(.tw-room-library)>.tw-live-toolbar{flex:none}
.tw-room-library{display:flex;flex-direction:column;min-height:150px;flex:1 0 150px;border-top:1px solid var(--ui-line);margin-top:10px;padding-top:10px}
.tw-room-library>header,.tw-room-library>footer{display:flex;justify-content:space-between;align-items:center;gap:5px;flex:none}
.tw-room-library h2{font-size:12px;margin:0}.tw-room-library h2>span{font-size:10px;color:var(--ui-primary);padding:2px 5px;background:var(--ui-soft);border-radius:4px}
.tw-room-library :is(header,footer)>.button{min-height:29px;font-size:10px;padding:5px 7px}.tw-room-library :is(header,footer)>.button svg{width:13px;height:13px}
.tw-room-library>footer{border-top:1px solid var(--ui-line);margin-top:auto;padding-top:8px}
.tw-room-library [data-room-library-status]{font-size:10px;line-height:1.7;margin:12px 0}
.tw-room-deck-list{margin:7px 0;min-width:0}.tw-room-deck-row{display:flex;align-items:center;gap:3px;margin:3px 0}
.tw-room-deck{display:flex;align-items:flex-start;gap:7px;flex:1;min-width:0;padding:9px 6px;border:1px solid var(--ui-line);border-radius:7px;background:var(--ui-surface);color:var(--ui-text);text-align:left}
.tw-room-deck.is-current{border-color:var(--ui-primary);background:var(--ui-soft)}
.tw-room-deck>span:first-child{flex:none;font-size:9px;color:var(--ui-primary);background:var(--ui-soft);border-radius:4px;padding:4px}
.tw-room-deck>span:last-child{min-width:0}.tw-room-deck strong{display:block;font-size:10px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;font-weight:600}.tw-room-deck small{display:block;font-size:9px;line-height:1.5;color:var(--ui-muted);margin-top:3px}
.tw-room-deck-delete{flex:none;width:27px;height:30px;display:grid;place-items:center;border:0;background:transparent;color:var(--ui-muted);border-radius:5px;padding:5px}.tw-room-deck-delete svg{width:14px;height:14px}.tw-room-deck-delete:hover{color:#ae4545;background:var(--ui-soft)}
.tw-room-deck:focus-visible,.tw-room-deck-delete:focus-visible{outline:2px solid var(--ui-primary);outline-offset:1px}