@import"https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600;700;800&display=swap";.reference-workspace{max-width:430px!important;border-radius:0!important;margin:0 auto!important;background:#fff!important;min-height:calc(100dvh - 56px);padding:24px 18px 90px!important;color:#101a36}.reference-workspace h1,.reference-workspace h2,.reference-workspace h3,.reference-auth h1,.reference-admin h1,.reference-admin h2{color:#0e1935;letter-spacing:0;font-weight:700}.reference-workspace p{color:#536789;line-height:1.65;font-size:16px}.reference-workspace .workspace-heading{margin:8px 0 12px;align-items:center}.reference-workspace .teacher-identity{gap:16px}.reference-workspace .teacher-initial{width:80px;height:80px;background:#e9f4f4;font-size:36px;color:#0f1834}.reference-workspace .teacher-identity h1{font-size:26px}.reference-workspace .teacher-identity p{font-size:15px}.reference-workspace .notice-bell{width:48px;height:48px;border:0}.reference-workspace .notice-count{background:#aa85ec;top:0;right:0}.reference-workspace .teacher-availability{background:#edf7f7;border-radius:18px;padding:6px 20px;margin:0}.reference-workspace .availability-switch[aria-checked=true]:before{background:#b092ef}.queue-caption{font-size:14px!important;margin:10px 20px 26px!important}.queue-title{font-size:18px!important;margin-bottom:8px}.reference-workspace .card{border:1px solid #e7ebf1;border-radius:18px!important;padding:16px!important;box-shadow:none!important;margin-bottom:14px}.reference-workspace .request-body{display:flex;gap:14px;margin-bottom:14px;align-items:center}.request-body>div{flex:1;min-width:0}.request-document{display:grid;place-items:center;width:112px;height:108px;background:#eaf1f8;border-radius:12px;font-size:44px;color:#677990;flex-shrink:0}.reference-workspace .request-card h3{font-size:18px;margin:10px 0 4px}.reference-workspace .request-card p{font-size:15px;margin:0}.reference-workspace .primary,.reference-auth .primary,.reference-admin .primary,.workspace-preview .primary{background:linear-gradient(105deg,#af91ee,#b79bec);color:#fff;border-radius:18px;box-shadow:none;font-size:18px;font-weight:600;min-height:54px}.reference-workspace .secondary,.workspace-preview .secondary,.reference-admin .secondary{border:1px solid #aebbd0;border-radius:17px;background:#fff;color:#101a36}.workspace-disclosure{border:1px solid #e7ebf1;border-radius:16px;padding:12px 16px;min-height:58px;text-align:left;justify-content:flex-start;gap:16px}.workspace-disclosure .chevron{margin-left:auto}.workspace-subheader{height:56px;display:grid;grid-template-columns:48px 1fr 48px;align-items:center;text-align:center;margin:0 0 22px}.workspace-subheader button{font-size:32px;padding:0;min-height:48px;background:transparent}.workspace-subheader strong,.workspace-subheader h2{font-size:20px;margin:0}.teacher-bottom-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:min(430px,100%);height:78px;background:#fff;border-top:1px solid #edf0f4;display:flex;z-index:25;padding:6px 10px max(6px,env(safe-area-inset-bottom))}.teacher-bottom-nav button{flex:1;display:flex;flex-direction:column;gap:3px;padding:0;border-radius:0;color:#59708e;background:transparent!important;font-size:14px;font-weight:400}.teacher-bottom-nav svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.7}.teacher-bottom-nav button.selected{color:#9d73eb}.teacher-bottom-nav button.selected:after{content:"";width:5px;height:5px;background:#a887ee;border-radius:50%;position:absolute;bottom:6px}.notification-filters,.admin-state-tabs{display:flex;border:1px solid #e6eaf1;border-radius:17px;padding:0;margin-bottom:18px;overflow:hidden}.notification-filters button{flex:1;background:#fff;border-radius:16px}.notification-filters .selected{background:#b195ef!important;color:#fff}.reference-workspace .notice-row{display:flex;align-items:flex-start;border-color:#e7ebf1!important;background:#fff!important;font-weight:400;gap:12px}.notification-icon{width:52px;height:52px;display:grid;place-items:center;border-radius:50%;font-size:29px;background:#f0eafb;flex-shrink:0}.notice-row .request-meta{gap:8px;align-items:flex-start;margin-bottom:4px}.notice-row .request-meta strong{font-size:16px}.notice-row .request-meta small{font-size:12px;white-space:nowrap}.reference-workspace .notice-row p{font-size:15px;margin:0 0 12px}.reference-workspace .notice-row .primary{width:100%;font-size:16px;min-height:48px}.profile-form{max-width:none!important}.profile-identity{text-align:center;margin:8px 0 24px}.profile-identity .teacher-initial{display:grid;margin:0 auto 16px;width:120px!important;height:120px!important;font-size:52px!important}.profile-identity h1{font-size:28px;margin-bottom:14px}.profile-identity .actions{justify-content:center}.profile-companions{border-radius:18px;padding:18px;display:flex;align-items:center;gap:18px;margin-bottom:20px}.profile-companions .student-companion{width:145px!important;height:104px!important;flex-shrink:0}.profile-companions p{font-size:16px;margin:0}.field-count{text-align:right;margin-top:-34px;padding-right:12px;pointer-events:none}.reference-workspace label textarea{padding-bottom:34px}.approval-status{text-align:center;padding-top:40px}.approval-status h1{font-size:32px;margin:24px 0 16px}.approval-symbol{height:160px;width:230px;margin:auto;background:#e8f5f0;border-radius:50%;display:grid;place-items:center;font-size:86px;position:relative;color:#7c889b}.approval-symbol>span{position:absolute;right:32px;bottom:14px;background:#b399ea;color:#fff;border:5px solid white;border-radius:50%;font-size:46px;width:64px;height:64px;line-height:54px}.approval-symbol.yellow{background:#fff5d7}.approval-symbol.yellow>span{background:#ffc950}.approval-status>.card{margin-top:30px;text-align:left;background:#ebf7f4}.approval-status>.primary{margin-top:40px}.workspace-preview-backdrop{background:#1925385c}.workspace-preview{width:min(430px,100%);border-radius:20px;padding:18px;max-height:calc(100dvh - 32px);color:#101a36}.workspace-preview .question-image{width:100%;height:280px;object-fit:cover;border-radius:14px}.workspace-preview .preview-question-text{font-size:16px;color:#26344c;margin:10px 0 16px}.workspace-preview .teacher-stuck{background:#eff8f7;border:0;border-radius:15px;padding:14px}.workspace-preview .teacher-stuck p{font-size:17px;color:#15223f}.workspace-preview .teacher-stuck .student-companion{width:64px!important;height:64px!important}.preview-actions{display:grid;gap:12px;margin-top:38px}.workspace-preview>.note{font-size:13px;color:#8592a7;margin:28px 0 8px}.reference-auth.auth-layout{display:block;max-width:430px;padding:24px 18px;margin:0 auto;background:#fff;min-height:calc(100dvh - 56px)}.reference-auth .auth-form{background:transparent;border:0;box-shadow:none;padding:0;margin:0}.reference-auth h1{font-size:34px;text-align:center;margin:16px 0 4px}.reference-auth .auth-subtitle{text-align:center;font-size:17px;margin-bottom:8px;color:#263551}.reference-auth .auth-companions{display:block;width:100%;height:240px;object-fit:contain;margin:0 auto 8px}.reference-auth input,.reference-auth select,.reference-auth textarea{border:1px solid #bac4d8;border-radius:10px}.reference-auth label{margin-bottom:12px;gap:4px;font-size:16px}.reference-auth .icon-field input{height:56px;padding:14px 18px}.reference-auth .auth-links{display:flex;justify-content:space-around;font-size:14px;margin:16px 0}.reference-auth .note{margin-bottom:16px}.reference-admin{display:grid;grid-template-columns:190px minmax(0,1fr);background:#fff;min-height:calc(100dvh - 56px);border-top:1px solid #e6ebf1;max-width:1440px;margin:auto}.admin-sidebar{border-right:1px solid #e4e9f0;padding:24px 14px}.admin-sidebar h2{font-size:23px;padding:0 10px;margin-bottom:22px}.admin-sidebar nav{display:grid;gap:10px}.admin-sidebar button{justify-content:flex-start;padding:10px 14px;font-size:15px;background:#fff;border-radius:10px}.admin-sidebar button.selected{color:#8057db;background:#f0eaff}.admin-sidebar button>span{font-size:23px;width:25px}.admin-content{padding:32px;min-width:0}.admin-content>section>h1{font-size:28px;margin:0 0 4px}.admin-content>section>p{font-size:15px;margin-bottom:24px}.admin-state-tabs{width:fit-content;border-radius:10px;background:#f8f9fc;margin:0 0 26px}.admin-state-tabs button{border-radius:9px;min-height:46px;font-size:14px;padding:10px 26px;background:transparent}.admin-state-tabs button.selected{background:#ac90ee;color:#fff}.admin-content h2{font-size:20px}.admin-reference-table{border:1px solid #e8edf1;border-radius:12px}.admin-reference-table table{min-width:620px;font-size:14px}.admin-reference-table th{background:#e7f5f2;color:#334c65;padding:12px 18px;font-size:13px}.admin-reference-table td{padding:14px 18px;border-bottom:1px solid #eaf0f5;color:#152541}.admin-reference-table td:first-child{max-width:220px}.table-person{display:flex;align-items:center;gap:12px;white-space:nowrap}.table-person .teacher-initial{width:44px;height:44px;font-size:24px;background:#eeecfa;color:#112041}.admin-reference-table .primary,.admin-reference-table .secondary,.admin-reference-table button{font-size:13px;min-height:40px;padding:8px 22px;border-radius:14px}.admin-review-detail>.ghost{margin:-16px 0 8px;padding:0;color:#59708c}.admin-review-detail>.card{border:1px solid #e4eaf2;border-radius:12px;box-shadow:none;padding:20px}.review-identity{display:flex;align-items:center;gap:20px;margin-bottom:20px}.review-identity .teacher-initial{width:72px;height:72px;font-size:40px;background:#ebe5ff}.review-identity h2{margin-bottom:4px}.review-identity p{margin:0;font-size:14px}.review-detail-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:16px;margin-bottom:20px}.review-info{border:1px solid #e7edf3;border-radius:9px;overflow:hidden}.review-info h3{font-size:14px;background:#e8f5f1;padding:10px 14px;margin:0}.review-info p{font-size:14px;padding:12px 14px;margin:0}.review-info .pill{margin:0 14px 14px}.review-decision-buttons{display:flex;gap:14px}.review-decision-buttons button{flex:1;min-height:48px;font-size:15px;border-radius:12px}.admin-close-dialog{max-width:430px;border-radius:14px}.admin-close-dialog h2{font-size:20px}.admin-close-dialog .actions>button{flex:1;font-size:15px}.admin-close-dialog p{font-size:14px}.reference-admin .empty{text-align:center}@media(max-width:700px){.reference-admin{grid-template-columns:1fr}.admin-sidebar{padding:12px 18px;border-right:0;border-bottom:1px solid #e6ebf1}.admin-sidebar h2{display:none}.admin-sidebar nav{display:flex;overflow:auto}.admin-sidebar button{white-space:nowrap;font-size:14px}.admin-content{padding:22px 18px}.admin-content>section>h1{font-size:25px}.review-detail-grid{grid-template-columns:1fr}.review-decision-buttons{flex-wrap:wrap}.review-decision-buttons button{flex-basis:40%}.admin-state-tabs button{padding:10px 12px;font-size:12px}.workspace-preview-backdrop{padding:0!important;align-items:stretch!important}.workspace-preview{border-radius:0!important;width:100%;max-height:100dvh;padding:18px 20px!important}.reference-auth .auth-companions{height:220px}.reference-workspace .teacher-bottom-nav{width:100%}.reference-workspace .request-document{width:108px}}.request-photo{width:112px;height:110px;flex-shrink:0;overflow:hidden;border-radius:12px;background:#f3f5f8}.request-photo .question-image{width:100%;height:100%;max-height:none;object-fit:cover;margin:0;border-radius:0}.request-photo .note,.request-photo .error{font-size:11px!important;padding:5px!important;margin:0!important}.request-photo .error button{padding:2px!important;min-height:24px!important;font-size:10px!important}.profile-companions>img{width:145px;height:108px;object-fit:contain;flex-shrink:0}.reference-admin .teacher-initial{display:grid;place-items:center;border-radius:50%;flex-shrink:0}.approved-list-heading{margin:28px 0 14px}.reference-workspace .workspace-subheader{grid-template-columns:48px 1fr 88px}.reference-workspace .workspace-subheader .read-all-button{font-size:13px;color:#536b96;font-weight:500;white-space:nowrap;min-height:48px;padding:0}.profile-settings-link{float:right;background:transparent;font-size:13px;color:#546d91;padding:0;min-height:44px}.profile-identity{clear:both}.notification-preferences>h1{text-align:center;font-size:29px;margin:16px 0 10px}.notification-preferences>.center{margin:0 0 30px;font-size:16px}.preference-row{display:flex;align-items:center;gap:14px;border:1px solid #e4e8ef;border-radius:15px;padding:16px 12px;margin-bottom:14px}.preference-row>div:first-of-type{flex:1;min-width:0}.preference-row h2{font-size:20px;margin:0 0 6px}.preference-row p{font-size:14px;line-height:1.55;margin:0!important;color:#69788d}.preference-icon{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;flex-shrink:0}.preference-icon svg{width:29px;height:29px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.preference-icon.lavender{background:#efe8ff;color:#7145bf}.preference-icon.gray{background:#eef0f2;color:#4a5561}.preference-icon.mint{background:#e9f6f1;color:#415e63}.preference-row .availability-switch{flex-shrink:0;width:52px}.preference-actions{display:flex;flex-direction:column;align-items:center;gap:7px;flex-shrink:0}.preference-actions .secondary{font-size:14px;min-height:42px;border-radius:14px;padding:7px 15px}.preference-actions small{color:#15233b;white-space:nowrap;font-size:13px}.notification-info{margin-top:22px;font-size:17px}.foreground-notice{position:fixed;top:68px;left:50%;transform:translate(-50%);width:min(390px,calc(100% - 28px));z-index:59;background:#fff;border:1px solid #d9cbed;box-shadow:0 8px 30px #1720331a;border-radius:16px;padding:10px 14px;display:flex;align-items:center;gap:10px}.foreground-notice strong{flex:1}.foreground-notice button{min-height:44px;padding:7px 12px;font-size:14px}.reference-auth .auth-links .ghost{font-size:14px;min-height:36px;padding:0;color:#426094}.reset-password-panel{padding:12px 16px;border:1px solid #bac4d8;border-radius:16px}.reset-disclosure{width:100%;display:flex;justify-content:space-between;min-height:36px;padding:0;background:transparent;font-size:16px;margin-bottom:10px}.reset-password-panel form{display:grid;gap:10px}.reset-password-panel .secondary{border:1px solid #bac4d8;border-radius:12px;min-height:46px;padding:8px;font-size:15px}.reset-password-panel input{height:46px}.approval-status-image{display:block;width:260px;height:190px;object-fit:contain;margin:0 auto 16px}body:has(.reference-workspace>.workspace-subheader) .app-shell>.topbar{display:none}.reference-workspace>.workspace-subheader{margin-top:-18px}.reference-workspace .approval-status>.card.yellow{background:#fff4d6}.application-proof-field{text-align:left;font-size:15px;gap:6px}.application-proof-picker{position:relative;display:flex;align-items:center;gap:14px;border:1px solid #bac4d8;border-radius:12px;padding:12px 14px;background:#fff;min-height:62px;font-weight:400;overflow:hidden;color:#14233e}.application-proof-picker>svg{width:25px;height:30px;fill:none;stroke:currentColor;stroke-width:1.7;flex-shrink:0}.application-proof-picker>span:nth-child(2){flex:1;min-width:0}.application-proof-picker strong{display:block;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.application-proof-picker small{display:block;font-size:12px;color:#8390a9;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.application-proof-picker input[type=file]{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;padding:0}.application-proof-picker:focus-within{outline:3px solid #8660c2;outline-offset:3px}.approval-status .application-proof-field{margin:20px 0 16px}.approval-status .application-proof-picker{min-height:74px}.approval-status .application-proof-picker strong{font-size:18px}.approval-status .application-proof-picker small{font-size:14px}.proof-download{margin:8px 10px 0;max-width:calc(100% - 20px);min-height:44px;justify-content:flex-start;border-radius:8px;padding:8px;background:#fff;font-size:14px;overflow-wrap:anywhere;text-align:left}.proof-download svg{width:20px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;flex-shrink:0}.student-math[data-v-d3670cd2]{white-space:pre-wrap;overflow-wrap:anywhere;min-width:0}.math-formula[data-v-d3670cd2]{display:inline-block;max-width:100%;overflow-x:auto;overflow-y:hidden;vertical-align:middle;white-space:normal;padding:.12em 0}.math-display[data-v-d3670cd2]{display:block;margin:.45em 0;text-align:center}.math-formula[data-v-d3670cd2] math{font-size:1.08em}.capture-flow[data-v-eaec048b]{position:fixed;inset:0;z-index:55;background:#fff;display:flex;flex-direction:column;color:#11182c}.capture-flow header[data-v-eaec048b]{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;flex-shrink:0}.capture-flow h1[data-v-eaec048b]{font-size:20px;margin:0;font-weight:700}.capture-flow header button[data-v-eaec048b]{background:transparent;min-width:48px;font-size:30px;padding:0}.capture-picker[data-v-eaec048b]{display:none}.camera-scene[data-v-eaec048b],.crop-scene[data-v-eaec048b]{position:relative;flex:1;min-height:0;background:#34302b;overflow:hidden;display:flex;align-items:center;justify-content:center}.camera-scene video[data-v-eaec048b]{width:100%;height:100%;object-fit:cover}.camera-guide[data-v-eaec048b]{position:absolute;inset:23% 8%;pointer-events:none}.camera-guide i[data-v-eaec048b]{position:absolute;width:28px;height:28px;border-color:#fff;border-style:solid;border-width:0}.camera-guide i[data-v-eaec048b]:nth-child(1){left:0;top:0;border-left-width:4px;border-top-width:4px;border-top-left-radius:12px}.camera-guide i[data-v-eaec048b]:nth-child(2){right:0;top:0;border-right-width:4px;border-top-width:4px;border-top-right-radius:12px}.camera-guide i[data-v-eaec048b]:nth-child(3){left:0;bottom:0;border-left-width:4px;border-bottom-width:4px;border-bottom-left-radius:12px}.camera-guide i[data-v-eaec048b]:nth-child(4){right:0;bottom:0;border-right-width:4px;border-bottom-width:4px;border-bottom-right-radius:12px}.camera-controls[data-v-eaec048b]{height:116px;display:flex;justify-content:space-around;align-items:center;background:#39322a;padding:12px 24px}.camera-controls>button[data-v-eaec048b]:not(.camera-shutter){background:transparent;color:#fff;padding:4px}.camera-controls svg[data-v-eaec048b]{width:36px;height:36px;fill:none;stroke:currentColor;stroke-width:1.5}.camera-controls>span[data-v-eaec048b]{width:48px}.camera-shutter[data-v-eaec048b]{width:78px;height:78px;min-height:78px;background:#fff;border-radius:50%;border:5px solid #39322a;outline:4px solid white;padding:0}.crop-scene[data-v-eaec048b]{padding:0 12px}.crop-photo[data-v-eaec048b]{position:relative;width:fit-content;max-width:100%;touch-action:none;overflow:hidden}.crop-photo>img[data-v-eaec048b]{display:block;max-width:100%;max-height:calc(100dvh - 176px);width:auto;object-fit:contain;user-select:none}.crop-selection[data-v-eaec048b]{position:absolute;border:2px solid #fff;box-shadow:0 0 0 200vmax #0007;touch-action:none}.crop-selection>button[data-v-eaec048b]{position:absolute;width:20px;height:20px;min-height:20px;padding:0;background:#fff;border:0;border-radius:50%;touch-action:none}.tl[data-v-eaec048b]{left:-11px;top:-11px}.tr[data-v-eaec048b]{right:-11px;top:-11px}.bl[data-v-eaec048b]{left:-11px;bottom:-11px}.br[data-v-eaec048b]{right:-11px;bottom:-11px}.crop-controls[data-v-eaec048b]{height:100px;padding:14px 20px;background:#fff;flex-shrink:0}.crop-controls button[data-v-eaec048b]{height:56px;font-size:20px;color:#fff;background:#b19ce3}.capture-flow>.error[data-v-eaec048b]{margin:8px 16px;flex-shrink:0}.camera-fallback[data-v-eaec048b]{position:absolute;text-align:center;padding:20px}.camera-fallback button[data-v-eaec048b]{margin:6px}@media(min-width:700px){.capture-flow[data-v-eaec048b]{left:50%;transform:translate(-50%);width:500px;border-left:1px solid #eee;border-right:1px solid #eee}}.student-page{--student-purple:var(--accent);--student-lavender:#eae3f5;--student-mint:var(--mint);--student-ink:var(--dark);background:#fff;color:var(--student-ink);border-radius:28px;max-width:940px;margin-top:12px}.student-page .primary{background:var(--student-purple);color:var(--student-ink);box-shadow:none}.student-page .primary:hover{background:#a48bd5}.student-page .card{border:1px solid #f0eef3;box-shadow:none}.student-solving{max-width:700px;padding:16px 26px 32px}.student-header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.student-header h1{font-size:20px;letter-spacing:0;margin:0;color:var(--student-ink)}.student-header>a,.student-header>button{width:48px;min-height:48px;border-radius:50%;text-align:center;font-size:24px;padding:8px;background:transparent;color:var(--student-ink)}.student-menu{position:relative;margin:0}.student-menu summary{list-style:none;text-align:center;width:48px;padding:10px}.student-menu[open]{background:#fff;border-radius:16px;box-shadow:0 4px 16px #3332;z-index:2}.student-menu[open] a{display:block;white-space:nowrap;padding:14px}.student-stages{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:0;margin:0 0 12px;list-style:none;gap:6px;text-align:center}.student-stages li{font-size:12px;color:#686e80;display:grid;justify-items:center;gap:8px;position:relative;line-height:1.5}.student-stages li:not(:last-child):after{content:"";height:2px;background:#e2e4eb;position:absolute;top:21px;width:calc(100% - 46px);left:calc(50% + 25px)}.student-stages li>span{background:#eff0f3;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-size:18px;font-weight:700}.student-stages .active{color:var(--student-ink);font-weight:700}.student-stages .active>span{background:var(--student-purple);color:var(--student-ink)}.student-stages .done>span{background:#d4e6e0;color:#326958}.student-stages .done:after{background:#ad95de}.student-question{margin:0 0 16px;padding:0 12px!important;border-color:transparent!important}.student-question summary{color:#654585;text-align:center;font-size:16px}.student-edit{margin-top:18px}.student-kicker{font-size:12px;color:#654585;margin-bottom:10px}.student-work{padding:24px!important;border-radius:24px}.student-work h2{font-size:27px;line-height:1.5;color:var(--student-ink)}.student-prompt{white-space:pre-wrap;margin:16px 0;font-size:18px;color:var(--student-ink)}.student-math{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.9}.student-math sup{font-size:.72em;line-height:0}.student-math math{margin:0 4px;font-size:1.2em}.student-choices{border:0;padding:16px;margin:0 0 18px;background:var(--student-mint);border-radius:16px}.student-choices legend{font-size:14px;margin-bottom:10px;font-weight:600;float:left;width:100%}.student-choices label{display:flex;align-items:center;gap:12px;min-height:56px;padding:12px 14px;border:1px solid #cbd0e2;border-radius:12px;margin-bottom:10px;cursor:pointer;background:#fff;font-weight:500}.student-choices label:last-child{margin-bottom:0}.student-choices label.selected{background:#eae3f5;border-color:#8464b5}.student-choices input{width:20px;min-height:20px;height:20px;accent-color:#7858a5;flex-shrink:0}.student-work form>label{background:var(--student-mint);border-radius:16px;padding:18px;font-size:16px;font-weight:500}.student-feedback{border-radius:16px;background:#fff0e4;padding:16px;margin:16px 0;font-size:15px}.student-feedback.success{background:var(--student-mint);color:#086b56}.student-hint{display:flex;align-items:center;gap:12px;background:#fff6df;border-radius:16px;padding:12px 14px;margin:18px 0}.student-companion{width:72px;height:92px;flex-shrink:0;object-fit:contain}.student-hint>div{flex:1;min-width:0}.student-hint p{font-size:15px;margin:4px 0 0;color:var(--student-ink)}.student-hint>button{padding:0;min-width:36px;background:transparent;min-height:36px;align-self:flex-start}.student-work .primary{border-radius:22px;font-size:17px;min-height:56px}.student-step-actions{display:flex;gap:10px;margin-top:12px}.student-step-actions button{flex:1;border:1px solid #cbd0e2;background:#fff;font-size:15px;padding:10px;border-radius:12px;color:var(--student-ink)}.student-history{border-radius:16px;background:#f8f6fb;padding:16px;margin-bottom:12px}.student-history h3{font-size:16px;margin:4px 0}.student-history p{margin:8px 0 0;font-size:14px}.student-complete{text-align:center;padding:16px 0}.student-complete .student-companion{margin:0 4px 16px;width:92px;height:116px}.student-teacher{background:#faf8fd!important}.student-teacher h2{font-size:18px}.student-context{background:var(--student-lavender);border-radius:20px;padding:18px;margin-bottom:20px}.student-context h2{font-size:19px;margin:6px 0}.student-context small{color:#654585}.student-context .note{margin-top:8px}.student-conversation{padding-bottom:12px}.student-bubble{border-radius:22px;padding:18px;margin:0 24px 16px 0;background:var(--student-mint)}.student-bubble.own{background:var(--student-lavender);margin:0 0 16px 24px}.student-bubble p{font-size:16px;margin:12px 0;color:var(--student-ink)}.student-bubble-heading{display:flex;align-items:center;gap:8px}.student-bubble-heading .student-companion{width:40px;height:48px}.student-user-avatar{background:#fff8;width:32px;height:32px;display:grid;place-items:center;border-radius:50%;font-size:12px}.student-bubble button{font-size:12px;padding:8px 14px;background:#fffa;min-height:44px}.student-bubble audio,.student-compose audio{width:100%;margin:12px 0}.student-compose{margin-top:8px}.student-voice{padding-bottom:16px;margin-bottom:18px;border-bottom:1px solid #e8e1ec}.student-voice h2{font-size:19px}.student-empty{padding:30px 16px;text-align:center;font-size:14px}.student-home{max-width:760px}.student-home-heading{padding:20px 0 0;text-align:center}.student-home-heading h1{font-size:clamp(30px,4vw,40px);letter-spacing:-.035em;margin-bottom:8px;color:var(--student-ink)}.student-home-heading p{font-size:15px;margin:0;color:#62697a}.student-upload{padding:0 0 8px;max-width:480px;margin:0 auto 18px;text-align:center;background:transparent}.student-home-companions{display:block;width:min(100%,370px);height:auto;max-height:244px;object-fit:contain;border-radius:20px;margin:20px auto 16px}.student-upload .subject-select{display:flex;align-items:center;justify-content:center;gap:12px;margin:0 auto 14px;font-size:14px;color:#62697a;font-weight:500}.student-upload .subject-select select{width:140px;min-height:44px;padding:8px 12px;border-color:#d8dbe6;border-radius:12px}.student-upload .actions{display:flex;flex-direction:column;gap:12px;margin:0}.student-upload .actions>*{width:100%}.student-upload .primary{border-radius:18px;font-size:19px;min-height:96px;font-weight:700}.student-camera-button{flex-direction:column;gap:8px}.student-upload .secondary{border:1px solid #bfc5d5;font-size:16px;min-height:54px;border-radius:16px}.student-upload svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linejoin:round;stroke-linecap:round}.student-camera-button svg{width:34px;height:34px}.student-trial-note{display:block;margin-top:12px;font-size:12px;color:#62697a}.student-ai-note{margin:0;font-size:12px}.student-ai-note summary{min-height:44px;font-size:12px;font-weight:400;list-style:none;color:#62697a}.student-ai-note p{font-size:13px;background:#f8f8fb;padding:12px;border-radius:12px;text-align:left}.student-entry{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px;border:0;border-radius:16px;background:var(--student-mint);color:var(--student-ink);margin-bottom:12px}.student-entry>div{min-width:0}.student-entry h3{font-size:16px;margin:6px 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.student-entry .pill{white-space:nowrap}.student-lessons{margin-top:24px}.student-record-intro{padding:20px;background:var(--student-lavender);border-radius:20px}.student-record-intro h1{font-size:26px;margin:0}.student-page .section-title h2{font-size:20px}.student-page .note button{font-size:12px;padding:6px 10px}.student-record-empty{display:flex;gap:12px;align-items:center;padding:24px}.student-record-empty p,.student-page label.upload-button{margin:0}.student-page .upload-button:focus-within{outline:3px solid #654585;outline-offset:3px}.student-reasoning-diagram{padding:12px 0}.student-reasoning-diagram article{background:var(--student-mint);border:1px solid #d4e6e0;border-radius:18px;padding:18px;text-align:center}.student-reasoning-diagram h3{font-size:16px;margin:8px 0}.student-reasoning-diagram p{font-size:14px;margin:8px 0 0}.student-reasoning-arrow{text-align:center;font-size:24px;color:#654585;padding:6px}@media(max-width:600px){.student-page{border-radius:24px;padding:16px;margin:6px 8px 0}.student-solving{padding:12px 16px 24px}.student-stages{gap:3px}.student-stages li{font-size:11px}.student-stages li>span{width:38px;height:38px}.student-stages li:not(:last-child):after{top:19px;width:calc(100% - 40px);left:calc(50% + 22px)}.student-work{padding:18px!important}.student-work h2{font-size:25px}.student-prompt{font-size:17px}.student-header{margin-bottom:14px}.student-home-heading{padding:12px 0 0}.student-home-heading h1{font-size:29px;white-space:nowrap}.student-home-heading p{font-size:13px}.student-home-companions{max-height:204px;margin:16px auto 12px}.student-upload .actions{flex-direction:column}.student-upload .actions>*{width:100%}.student-upload .primary{min-height:86px}.student-entry{padding:16px;gap:10px;align-items:flex-start}.student-entry .pill{font-size:10px;padding:6px 10px}.student-bubble{margin-right:12px}.student-bubble.own{margin-left:12px}}@media(max-width:360px){.student-home-heading h1{font-size:26px}.student-stages li{font-size:10px}.student-hint{gap:8px;padding:10px}.student-hint .student-companion{width:58px;height:78px}}.student-complete .student-companion{display:inline-block;vertical-align:bottom}.student-page{--student-purple:#aa94e5;--student-lavender:#f3f1fd;--student-mint:#e8f8f3;--student-ink:#121943;max-width:430px;padding:20px 18px 28px;border-radius:0;margin-top:0;background:#fff;min-height:calc(100dvh - 130px)}.student-page .primary{color:#fff;background:linear-gradient(110deg,#ac95e6,#b09ade);font-weight:600;border-radius:18px}.student-page .primary:hover{background:#9a81d5}.student-home-heading{padding:8px 0 0}.student-home-heading h1{font-size:33px;letter-spacing:-.035em;line-height:1.5;margin:0;white-space:nowrap}.student-home-companions{width:100%;max-height:none;height:196px;object-fit:contain;border-radius:0;margin:42px auto 16px}.student-upload{padding:0;margin:0 0 32px;max-width:none}.student-upload .primary{min-height:100px;border-radius:16px;font-size:23px;gap:4px}.student-camera-button svg{width:46px;height:46px}.student-upload .secondary{min-height:50px;font-size:18px;border-color:#bfc4d4;color:var(--student-ink);border-radius:14px}.student-recent{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#e1efeb;padding:12px 16px;border-radius:12px;color:#172033;min-height:70px}.student-recent small{font-size:13px}.student-recent h3{font-size:16px;line-height:1.5;margin:4px 0 0;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.student-recent>span{font-size:28px}.student-header{margin:0 0 12px;height:48px}.student-header h1{font-size:19px}.student-header-spacer{width:48px}.student-solving{padding:8px 18px 24px;max-width:430px}.student-stages{margin:0 0 10px;gap:5px}.student-stages li{font-size:13px;gap:5px;color:#81869b}.student-stages li>span{width:38px;height:38px;font-size:22px;background:#f0f0f2;color:#81869b}.student-stages .active>span{color:#fff;background:#9982ea}.student-stages .done>span{background:#f0f0f2;color:#81869b}.student-stages .done:after{background:#a991ec}.student-question{padding:0!important;border:0!important;margin-bottom:8px}.student-question summary{font-size:17px;color:#8264ec;font-weight:600;min-height:40px;padding:8px;list-style:none}.student-question summary:after{content:"⌄";margin-left:8px}.student-work{border:0!important;padding:10px 0 0!important;background:#fff;box-shadow:none!important;margin-bottom:0}.student-work h2{font-size:28px;font-weight:800;line-height:1.4;margin-bottom:8px}.student-step-title{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.student-prompt{font-size:18px;line-height:1.65;margin:10px 0 12px;color:#121943}.student-choices{padding:12px;border-radius:10px;background:#e8f8f3;margin:0 0 14px;display:flex;flex-wrap:wrap;gap:8px}.student-choices legend{font-size:16px;margin:0 0 8px}.student-choices label{flex:1;margin:0!important;min-height:48px;justify-content:center;gap:6px;padding:8px;font-size:16px;border-radius:9px;border-color:#c5cce1}.student-choices input{width:16px;height:16px;min-height:16px}.student-choices label.selected{background:#f4effd;border-color:#a28ae3}.student-work form>label{min-height:124px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:#e8f8f3;padding:16px;border-radius:10px}.student-work form>label input{width:88px;min-width:64px;flex:1;border-radius:8px;border-color:#c1c9de;text-align:center}.student-work form>label textarea{background:#fff}.student-work .primary{border-radius:100px;min-height:52px;font-size:19px;margin-top:18px}.student-step-actions{gap:10px;margin-top:12px}.student-step-actions button{min-height:48px;border-radius:12px;font-size:17px;color:#121943;border-color:#c6cee4}.student-hint{background:#fff6df;border-radius:10px;padding:0 12px 0 0;margin:16px 0 0;min-height:100px;gap:12px;overflow:hidden}.student-hint .student-companion{width:88px;height:100px;object-fit:contain;align-self:flex-end}.student-hint strong{font-size:17px}.student-hint p{font-size:16px;line-height:1.65}.student-work>.note{font-size:11px;color:#7c8190;margin-top:16px}.student-teacher{background:#fff!important;padding:0!important;border:0!important;margin-top:24px}.student-teacher .secondary{border:1px solid #c6cee4;color:#121943}.student-context{background:#f6f6fe;border-radius:16px;padding:16px;margin:0 0 20px}.student-context-heading{display:flex;gap:10px;align-items:center;font-size:16px}.student-context-heading button{min-height:32px;padding:2px 10px;border:1px solid #dde0f2;background:transparent;font-size:14px;border-radius:100px}.student-context>.student-math{font-size:18px;margin-top:6px;display:block}.student-context .note{margin-top:6px}.student-bubble{margin:0 0 16px 64px;position:relative;border-radius:22px;padding:16px;background:#e8faf4}.student-bubble.own{margin:0 0 18px 54px;background:#f0eafe}.student-bubble-heading{position:relative;height:0}.student-bubble-heading .student-companion{position:absolute;left:-78px;top:-6px;width:58px;height:74px}.student-bubble-heading small{position:absolute;clip-path:inset(50%);width:1px;height:1px;overflow:hidden}.student-bubble p{font-size:18px;line-height:1.65;font-weight:500;margin:0 0 8px}.student-bubble-heading .student-user-avatar{position:absolute;left:-66px;top:-5px;background:#eff0f9;width:44px;height:44px}.student-compose{border:0!important;padding:0!important;margin-top:24px;background:#fff}.student-compose form{position:relative}.student-compose form>label{font-size:0;margin:0}.student-compose textarea{font-size:17px;border:1px solid #dce0ee;border-radius:20px;min-height:65px;padding:16px 64px 16px 18px;resize:none}.student-compose form>.primary{width:46px;height:46px;min-height:46px;padding:0;position:absolute;bottom:10px;right:10px;border-radius:50%;font-size:0;background:#a38aee}.student-compose form>.primary:after{content:"➤";font-size:25px;color:#fff}.student-compose>.note{display:none}.student-chat-welcome article{display:flex;gap:12px;margin:24px 0 34px;align-items:center}.student-chat-welcome .student-companion{width:66px;height:90px}.student-chat-welcome p{background:#e8faf4;border-radius:22px;padding:18px;margin:0;font-size:19px;font-weight:600;color:#121943}.student-chat-welcome article:nth-child(2) p{background:#fafaff;border:1px solid #eff0fb}.student-voice{border:0;text-align:center;min-height:470px;padding-top:65px;margin:0;display:flex;flex-direction:column;align-items:center}.student-mic-icon{width:94px;height:94px;border-radius:50%;background:#f0ebfd;display:grid;place-items:center;font-size:60px;color:#151640;margin-bottom:22px}.student-voice h2{font-size:27px;margin:0 0 14px;line-height:1.6}.student-voice-intro{font-size:18px;line-height:1.75;color:#121943}.student-voice .actions{display:flex;flex-direction:column;width:100%;margin-top:14px;gap:14px}.student-voice .actions button{width:100%;min-height:64px;border-radius:100px;font-size:21px;background:#f3f1fe;border:1px solid #dfdafa}.student-voice .actions button:first-child{background:#8768e9;color:#fff;border:0}.student-voice.recording .student-mic-icon{margin-bottom:10px}.student-voice.reviewing{min-height:340px;padding-top:35px}.student-voice.reviewing .actions{flex-direction:row}.student-voice.reviewing .actions button{font-size:17px;border-radius:16px;min-height:55px;background:#f4f1fc;color:#121943}.student-voice.reviewing+form textarea{min-height:120px;padding:16px;font-size:19px}.student-voice.reviewing+form>.primary{position:static;width:100%;height:64px;border-radius:100px;font-size:20px;margin-top:20px}.student-voice.reviewing+form>.primary:after{content:none}.student-compose:has(.student-voice:not(.reviewing)) form{display:none}.student-compose:has(.student-voice)>.student-step-actions{display:none}.student-capture-confirm>.question-image{height:215px;width:100%;object-fit:cover;border-radius:14px;margin:16px 0 30px}.student-capture-confirm>label{font-size:16px;color:#60667a}.student-capture-confirm .primary{margin-top:18px}.student-capture-confirm .secondary{border:1px solid #c5cadd;margin-top:10px}.student-list-title{text-align:center;font-size:31px;margin:22px 0 24px;color:#172033}.student-segment{display:flex;border-radius:100px;background:#e6f5f1;margin:0 0 16px;overflow:hidden}.student-segment button{width:50%;font-size:19px;min-height:48px;background:transparent;border-radius:100px}.student-segment button.selected{background:#b6a2ec;color:#fff}.student-record-row{display:flex;gap:16px;border:1px solid #e6e8ef;border-radius:16px;padding:10px;margin-bottom:12px;align-items:center;color:#172033}.student-record-thumb{width:104px;height:118px;flex-shrink:0;background:#f0f0f0;border-radius:13px;display:grid;place-items:center;overflow:hidden;font-size:32px;color:#7b8190}.student-record-thumb .question-image{width:100%;height:100%;max-height:none;object-fit:cover;margin:0;border-radius:0}.student-record-thumb>.note{font-size:12px;padding:10px}.student-record-row>div:nth-child(2){min-width:0;flex:1}.student-record-row h3{font-size:17px;line-height:1.4;margin:0 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.student-record-row small{display:block;font-size:13px;line-height:1.8;color:#7c8296}.student-record-row .pill{padding:4px 12px;margin-top:4px}.student-chevron{font-size:28px}.student-record-empty{display:block;text-align:center;padding:34px 0 0}.student-record-empty img{width:100%;height:220px;object-fit:contain;margin:0 0 22px}.student-record-empty h2{font-size:24px;margin:0 0 14px}.student-record-empty p{font-size:16px;color:#7c8296;margin-bottom:26px}.student-record-empty .primary{min-height:60px;font-size:20px}.student-record-help{margin:16px 0;font-size:13px}.student-record-help summary{font-size:14px;color:#717a91;text-decoration:underline;list-style:none;min-height:44px}.student-record-help p{font-size:14px}.student-teachers-heading{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:18px}.student-teachers-heading img{width:85px;height:85px;object-fit:contain}.student-teachers-heading h1{font-size:34px;white-space:nowrap;margin:0}.student-teachers-subtitle{text-align:center;font-size:17px;color:#172033;margin:0 0 32px}.student-subjects{display:flex;gap:8px;margin-bottom:14px}.student-subjects button{flex:1;background:#e1efeb;border-radius:100px;min-height:42px;padding:8px;font-size:17px}.student-subjects button.selected{background:#ad95e3;color:#fff}.student-teacher-row{display:flex;gap:14px;border:1px solid #e4e7ee;border-radius:15px;padding:10px;margin-bottom:10px;align-items:center;position:relative}.student-adult-avatar{width:110px;height:116px;flex-shrink:0;display:grid;place-items:center;background:#e3efeb;border-radius:10px;font-size:42px;color:#516b65}.student-teacher-row>div{flex:1;min-width:0}.student-teacher-row h2{font-size:21px;margin:0 0 3px}.student-teacher-row p{font-size:14px;margin:6px 0 0;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.student-teacher-row .primary{align-self:flex-end;min-height:38px;padding:6px 20px;border-radius:14px;font-size:15px;position:absolute;bottom:12px;right:10px}.student-teacher-row .pill{padding:3px 12px;font-size:13px}.student-random{margin-top:22px;background:#e3f1ed;border-radius:100px;min-height:50px;font-size:18px}.student-teachers-flow{min-height:calc(100dvh - 70px);position:relative}.student-teacher-profile{display:flex;align-items:center;gap:22px;margin:24px 10px 12px}.student-teacher-profile .student-adult-avatar{border-radius:50%;width:125px;height:125px}.student-teacher-profile h1{font-size:27px;margin:0 0 4px}.student-teacher-specialty{text-align:center;background:#e3f1ed;border-radius:100px;padding:14px;font-size:18px}.student-bottom-action{margin-top:240px;min-height:65px;font-size:22px}.student-question-option{display:flex;align-items:center;padding:12px;gap:12px;border:1px solid #e4e7ee;border-radius:16px;margin-bottom:12px;min-height:150px}.student-question-option.selected{border:3px solid #ae95ed}.student-question-option input{width:22px;min-height:22px;height:22px;flex-shrink:0;accent-color:#a58de6}.student-question-option .question-image{height:132px;object-fit:cover;margin:0;flex:1;min-width:0}.student-invite-card{border:1px solid #e4e7ee;border-radius:16px;padding:14px;margin-bottom:14px}.student-invite-teacher{display:flex;gap:18px;align-items:center;padding-bottom:14px;margin-bottom:10px;border-bottom:1px solid #e4e7ee}.student-invite-teacher .student-adult-avatar{width:90px;height:90px;border-radius:50%;font-size:34px}.student-invite-teacher h2{font-size:23px;margin:0 0 6px}.student-invite-card label{font-weight:400;font-size:16px;margin:12px 0}.student-invite-card .question-image{margin:0;height:112px;width:100%;object-fit:cover;border-radius:10px}.student-teachers-flow form>.primary{min-height:58px;font-size:21px;margin-bottom:8px}.student-teachers-flow form>.secondary{min-height:48px;border:1px solid #abb2c3}@media(min-width:700px){.student-page{margin-top:16px;border-radius:24px;min-height:740px}.student-solving{max-width:540px;padding:18px 30px 32px}.student-teachers,.student-records{max-width:540px;padding:22px 30px 32px}.student-teacher-row .primary{position:static}.student-home{max-width:430px}}@media(max-width:360px){.student-home-heading h1{font-size:29px}.student-stages li{font-size:11px}.student-work h2{font-size:26px}.student-teachers-heading h1{font-size:30px}.student-adult-avatar{width:88px}.student-record-thumb{width:85px}.student-bubble p{font-size:16px}}.student-mic-icon svg{width:55px;height:55px;fill:none;stroke:#14143b;stroke-width:2.3;stroke-linecap:round;stroke-linejoin:round}.student-centered-header{justify-content:center;height:40px;margin-bottom:4px}.student-centered-header h2{font-size:19px;margin:0;font-weight:700}.student-record-detail>.question-image{width:100%;height:220px;object-fit:cover;margin:12px 0;border-radius:16px}.student-record-result{padding:18px;background:#e5f5f0;border-radius:16px;margin-bottom:10px}.student-record-result strong{display:block;font-size:17px;margin-bottom:10px}.student-record-result .student-math{font-size:23px;text-align:center;display:block}.student-record-detail>details{border:1px solid #e4e7f0;border-radius:14px;margin:10px 0}.student-record-detail>details summary{min-height:58px;padding:16px;font-size:18px;font-weight:600;list-style:none}.student-record-detail>details summary:after{content:"⌄";float:right}.student-record-detail>details>article,.student-record-detail>details>.note{margin:8px 12px 12px}.student-record-detail>.primary{min-height:58px;font-size:20px;margin-top:10px}.student-voice.recording{padding-top:62px}.student-voice.recording .student-mic-icon{display:none}.student-recording-time{font-size:28px;color:#121943;font-weight:500;margin-bottom:32px}.student-voice-wave{height:104px;display:flex;gap:6px;align-items:center;justify-content:center;width:100%;margin:8px 0 28px}.student-voice-wave span{display:block;width:6px;min-height:5px;border-radius:100px;background:linear-gradient(#b39aff,#8866e8);transition:height 80ms linear}.student-voice.reviewing{min-height:0;padding-top:55px;padding-bottom:14px}.student-voice-review-actions{display:flex;gap:10px;margin:40px 0 0}.student-voice-review-actions button{flex:1;min-height:58px;border-radius:16px;background:#f3f1fc;color:#121943;font-size:19px}.student-voice.reviewing audio{margin-top:10px}.student-compose:has(.student-voice.reviewing) form>.primary{position:static;font-size:20px;height:64px;width:100%;border-radius:100px;margin-top:20px}.student-compose:has(.student-voice.reviewing) form>.primary:after{content:none}.student-hint .student-companion{background:transparent;border-radius:0;width:78px;height:96px;object-fit:contain}.student-work .primary{color:#fff;background:linear-gradient(120deg,#a690ed,#9c87e8)}.student-stages .active>span{background:linear-gradient(120deg,#a28bed,#9c86e4);color:#fff}.student-hint{background:#fff6df}.student-preparing{padding:54px 18px;background:#f6f3fe;text-align:center;border-radius:22px;margin:24px 0}.student-preparing h2{font-size:20px;margin:24px 0 12px}.student-preparing p{font-size:16px}.student-spinner{display:block;width:50px;height:50px;margin:auto;border:6px solid #ddd3f4;border-right-color:#a68bdf;border-radius:50%;animation:student-spin 1s linear infinite}@keyframes student-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.student-spinner{animation:none}}.student-complete-check{display:grid;place-items:center;margin:0 auto 16px;width:58px;height:58px;border-radius:50%;background:#68b499;color:#fff;font-size:36px}.student-complete h2{font-size:26px;margin:12px 0 20px}.student-final-answer{padding:24px;background:#e8f3ee;border-radius:20px;font-size:36px}.student-final-answer p{font-size:16px;margin:12px 0 0}.prompt-inputs[data-v-0aadebc0]{background:#e3f0ea;border-radius:18px;padding:22px 18px;margin:0 0 18px;line-height:2.6;font-size:22px}.prompt-inputs legend[data-v-0aadebc0]{float:left;width:100%;font-size:14px;line-height:1.8;margin-bottom:12px;color:#435569}.prompt-inputs input[data-v-0aadebc0]{display:inline-block;width:64px;min-height:52px;padding:8px;margin:0 5px;text-align:center;font-size:22px;background:#fff;border:1px solid #bfcbd7;border-radius:10px}.prompt-inputs[data-v-0aadebc0] .student-math{display:inline;white-space:pre-wrap}.prompt-inputs[data-v-0aadebc0] p{display:inline}.fraction-rows[data-v-0aadebc0]{display:grid;gap:18px;clear:both}.fraction-rows>div[data-v-0aadebc0]{display:flex;justify-content:center;align-items:center;gap:8px;font-size:30px}.fraction-input[data-v-0aadebc0]{display:inline-grid;text-align:center;line-height:1.4}.fraction-input>span[data-v-0aadebc0]{border-top:2px solid #172033;margin-top:6px;font-size:30px}.fraction-input input[data-v-0aadebc0]{margin:0;width:62px;min-height:42px;padding:4px}.recording-player[data-v-bb84d835]{display:flex;align-items:center;gap:10px;background:#f4effa;border:1px solid #d6c9e9;border-radius:14px;padding:10px 12px;margin:12px 0;min-width:0}.recording-player audio[data-v-bb84d835]{display:none}.recording-player button[data-v-bb84d835]{background:transparent;color:#a189d7;padding:0;width:36px;min-height:40px;flex-shrink:0;font-size:22px}.recording-player input[data-v-bb84d835]{flex:1;width:0;min-width:0;min-height:30px;border:0;padding:0;accent-color:#b49ee7}.recording-player span[data-v-bb84d835]{white-space:nowrap;font-size:12px;color:#7c738f}.reasoning-visual[data-v-0930c9a3]{margin:0;background:#fff;border:1px solid #e2e7f2;border-radius:14px;padding:12px}.reasoning-visual figcaption[data-v-0930c9a3]{font-size:14px;color:#697087;margin:0 0 10px}.reasoning-visual svg[data-v-0930c9a3]{display:block;width:100%;height:auto;max-width:420px;margin:auto}.fraction-visual svg text[data-v-0930c9a3]{font-family:Georgia,Times New Roman,serif;font-size:25px;fill:#151943}.reasoning-visual p[data-v-0930c9a3]{font-size:13px;line-height:1.7;color:#646c85;margin:8px 0 0}.curve-visual .axis-label[data-v-0930c9a3]{font-size:13px;fill:#59627a}.curve-visual .vertex-label[data-v-0930c9a3]{font-size:16px;fill:#423764;font-weight:600}.student-intro{--intro-purple:#eee7f7;--intro-mint:#e3f0ed;--intro-yellow:#fff3cd;min-height:100dvh;background:#f6f5fa;color:#172033;padding:0 28px 30px;touch-action:pan-y}.intro-header{max-width:1080px;margin:auto;min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px}.intro-header>span{font-size:22px;font-weight:800}.intro-header small{font-size:12px;font-weight:500;color:#616879;margin-left:14px}.intro-header>a{font-size:13px;color:#654585;text-decoration:underline;text-underline-offset:4px;min-height:44px;display:flex;align-items:center}.intro-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:64px;max-width:960px;margin:22px auto 0;align-items:center}.intro-comic{margin:0;padding:16px;background:var(--intro-purple);border-radius:32px;min-width:0;box-shadow:0 12px 36px #28203d06}.intro-comic-solve,.intro-comic-classroom{background:var(--intro-mint)}.intro-comic-review{background:var(--intro-yellow)}.intro-comic>img{display:block;width:100%;height:auto;max-height:540px;object-fit:contain;border-radius:20px}.intro-dialogue{position:relative;width:fit-content;max-width:100%;margin:16px auto 2px;padding:12px 18px;border:1px solid #17203318;background:#fff;border-radius:18px;color:#172033;font-size:14px;font-weight:600;line-height:1.6;text-align:center}.intro-dialogue:before{content:"";position:absolute;top:-7px;left:24px;width:12px;height:12px;background:#fff;border-left:1px solid #17203318;border-top:1px solid #17203318;transform:rotate(45deg)}.intro-dialogue-boy:before{left:auto;right:24px}.intro-step-count{font-size:12px;color:#655379;display:flex;justify-content:space-between;gap:12px;margin-bottom:24px}.intro-step-count>b{font-weight:500;white-space:nowrap}.intro-instructions h1{font-size:34px;line-height:1.5;letter-spacing:-.035em;margin:0 0 20px}.intro-instructions h1:focus{outline:0}.intro-copy>p{font-size:15px;color:#616879;line-height:1.9;margin:0}.intro-tip{border-radius:16px;background:var(--intro-yellow);padding:13px 15px;margin:20px 0 0;font-size:12px;line-height:1.8;color:#555c6b}.intro-progress{display:flex;justify-content:center;gap:10px;margin:30px 0 20px}.intro-progress>span{height:8px;width:8px;border-radius:10px;background:#ded9e6}.intro-progress>span.read{background:#c7b5e3}.intro-progress>span.active{background:#9876d2;width:24px}.intro-confirm{display:flex!important;align-items:center;gap:10px;margin:18px 0;font-size:13px;font-weight:500;min-height:44px}.intro-confirm>input{width:21px;height:21px;min-height:21px;flex:none;accent-color:#7955af}.intro-actions{display:flex;justify-content:space-between;gap:16px}.intro-actions button{min-width:140px;font-size:14px;border-radius:16px}.intro-actions .primary{background:#b09ade;color:#172033}.intro-previous{background:#fff;border:1px solid #d6d0e2}.intro-gesture{font-size:11px;color:#616879;display:block;text-align:center;margin-top:18px}.intro-read-note{font-size:12px;margin:10px 0}.student-intro .error{font-size:13px}.app-shell:has(.student-intro){max-width:none;padding-bottom:0}.app-shell:has(.student-intro)>.topbar,.app-shell:has(.student-intro)>.navigation{display:none}@media(max-width:780px){.student-intro{padding:0 20px 24px}.intro-layout{gap:30px;margin-top:10px}.intro-instructions h1{font-size:27px}.intro-copy>p{font-size:14px}.intro-actions button{min-width:0;flex:1}.intro-header small{display:none}}@media(max-width:600px){.student-intro{padding:0 20px 24px}.intro-header{min-height:60px}.intro-header>span{font-size:20px}.intro-header>a{font-size:12px}.intro-layout{display:flex;flex-direction:column;gap:20px;margin:8px auto 0;max-width:390px}.intro-comic{width:100%;padding:12px;border-radius:26px}.intro-comic>img{max-height:42dvh;border-radius:16px}.intro-dialogue{font-size:12px;margin-top:12px;padding:9px 14px;border-radius:14px}.intro-instructions{width:100%}.intro-step-count{margin-bottom:10px;font-size:11px}.intro-instructions h1{font-size:25px;line-height:1.45;margin-bottom:10px}.intro-copy>p{font-size:13px;line-height:1.85}.intro-tip{margin-top:12px;padding:10px 12px;font-size:11px}.intro-progress{margin:18px 0 14px}.intro-actions{gap:12px}.intro-actions button{font-size:13px;padding:11px 14px}.intro-confirm{font-size:12px;margin:12px 0}.intro-gesture{margin-top:12px;font-size:10px}}@media(prefers-reduced-motion:no-preference){.intro-comic>img{animation:intro-appear .2s ease-out}@keyframes intro-appear{0%{opacity:.5;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}}.intro-image-error{text-align:center;font-size:13px;padding:12px}.intro-image-error button{border:1px solid #b09ade;background:#fff;border-radius:12px;min-height:44px}.usage-help[data-v-6f867874]{max-width:980px}.usage-help>.section-title[data-v-6f867874]{margin:0 0 24px}.help-heading[data-v-6f867874]{display:flex;gap:24px;align-items:center;background:var(--purple);border-radius:28px;padding:32px;margin-bottom:24px}.help-heading>div[data-v-6f867874]{flex:1}.help-heading h1[data-v-6f867874]{font-size:32px;margin:12px 0}.help-heading p[data-v-6f867874]{font-size:14px;margin:0}.help-heading img[data-v-6f867874]{width:36%;height:auto;border-radius:18px;mix-blend-mode:multiply}.help-role-tabs[data-v-6f867874]{display:flex;gap:10px;margin:20px 0 28px}.help-role-tabs button[data-v-6f867874]{flex:1;border:1px solid var(--border)}.help-role-tabs .selected[data-v-6f867874]{border-color:var(--accent)}.help-parent-note[data-v-6f867874]{background:var(--yellow);border-radius:16px;padding:16px;font-size:13px}.help-step[data-v-6f867874]{padding:28px}.help-step h2[data-v-6f867874]{margin-top:14px}.help-tips[data-v-6f867874]{display:flex;align-items:start;gap:12px;background:var(--yellow);padding:18px;border-radius:18px}.help-tips img[data-v-6f867874]{width:42px;height:48px;object-fit:contain}.help-tips ul[data-v-6f867874]{padding-left:18px;font-size:13px;line-height:1.9;margin:0}.help-pagination[data-v-6f867874]{display:flex;justify-content:space-between;gap:16px;margin:20px 0}.help-review-link[data-v-6f867874]{font-size:13px;text-decoration:underline;text-underline-offset:5px}.help-faq[data-v-6f867874]{margin-top:36px}.help-faq details[data-v-6f867874]{padding:16px 20px;margin:12px 0;background:#fff;border:1px solid var(--border);border-radius:16px}.help-faq summary[data-v-6f867874]{cursor:pointer;font-size:14px;font-weight:600}.help-faq p[data-v-6f867874]{font-size:13px;margin:14px 0 0}@media(max-width:600px){.help-heading[data-v-6f867874]{padding:24px;display:block}.help-heading h1[data-v-6f867874]{font-size:27px}.help-heading img[data-v-6f867874]{width:70%;display:block;margin:20px auto 0}.help-step[data-v-6f867874]{padding:22px}.help-step p[data-v-6f867874]{font-size:14px}.help-pagination button[data-v-6f867874]{flex:1}.help-tips[data-v-6f867874]{padding:14px}}.board-v2[data-v-c337256a]{--board-purple:#a879ff;display:flex;flex-direction:column;min-width:0;background:#fbfdff;border-radius:14px;padding:0;color:#101d3a}.reconnect-banner[data-v-c337256a]{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;margin:0 0 10px;border-radius:14px;background:#e4f6ef;color:#137153;font-size:14px}.reconnect-banner button[data-v-c337256a]{border:0;background:transparent;color:inherit;padding:6px 12px}.board-stage[data-v-c337256a]{position:relative;display:flex;min-height:calc(100dvh - 200px);border:1px solid #e2e9f0;border-radius:14px;background:#fff;overflow:hidden}.tools[data-v-c337256a]{position:absolute;z-index:3;left:14px;top:28px;display:flex;flex-direction:column;align-items:center;gap:5px;width:64px;padding:10px 7px;background:#fff;border:1px solid #dfe7f0;border-radius:20px;box-shadow:0 8px 18px #1932510d}.tools button[data-v-c337256a]{display:grid;place-items:center;width:46px;height:46px;min-height:46px;border:0;padding:8px;background:transparent;border-radius:50%}.tools svg[data-v-c337256a],.fullscreen svg[data-v-c337256a]{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.tools button.selected[data-v-c337256a]{color:#fff;background:linear-gradient(135deg,#b087ff,#9258ff)}.tools button[data-v-c337256a]:disabled{opacity:.4}.tools .color-dot[data-v-c337256a]{width:28px;height:28px;min-height:28px;margin:4px;background:var(--swatch);border:2px solid white;box-shadow:0 0 0 1px #d8e1ec}.tools .color-dot.chosen[data-v-c337256a]{box-shadow:0 0 0 2px var(--swatch);border:3px solid white}.tool-divider[data-v-c337256a]{width:38px;height:1px;background:#dfe7f0;margin:5px 0}.pen-width[data-v-c337256a]{display:flex;flex-direction:column;font-size:10px;text-align:center}.pen-width input[data-v-c337256a]{width:44px;height:16px;min-height:16px;padding:0;margin:2px 0}.viewport[data-v-c337256a]{flex:1;min-width:0;height:calc(100dvh - 200px);overflow:hidden;background:#fff}.viewport canvas[data-v-c337256a]{display:block;width:100%;height:100%;touch-action:none}.private-tools[data-v-c337256a]{position:absolute;right:10px;top:12px;z-index:5}.student-pen-status[data-v-c337256a]{position:absolute;right:12px;top:12px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:#e6f5ef;border-radius:20px;padding:9px 14px;font-size:13px;color:#1d775b;max-width:calc(100% - 95px)}.student-pen-status button[data-v-c337256a]{padding:8px 10px;min-height:36px;border:0;background:#fff;color:#33735f;border-radius:12px;font-size:12px}.student-pen-status small[data-v-c337256a]{flex-basis:100%;font-size:11px}.pen-request-toast[data-v-c337256a]{position:absolute;right:12px;top:65px;display:flex;gap:8px;flex-wrap:wrap;align-items:center;background:#fff;border:1px solid #e2e8f1;padding:12px;border-radius:13px;box-shadow:0 7px 20px #17263d18;z-index:9;font-size:13px;max-width:calc(100% - 95px)}.pen-request-toast button[data-v-c337256a]{padding:8px 12px;min-height:38px;border:0;border-radius:10px;background:#f2eaff;color:#7448bb;font-size:13px}.pen-request-toast .allow-pen[data-v-c337256a]{background:#aa79f0;color:#fff}.pen-request-toast small[data-v-c337256a]{flex-basis:100%;color:#a05b44}.sync[data-v-c337256a]{position:absolute;bottom:10px;left:90px;right:18px;font-size:11px;display:flex;gap:12px;justify-content:flex-end;color:#6b7787;pointer-events:none}.sync span[data-v-c337256a]{background:#fffffff0;padding:4px 8px;border-radius:6px}.pagebar[data-v-c337256a]{display:flex;gap:12px;align-items:center;padding:14px 4px 4px;min-height:100px}.pages[data-v-c337256a]{display:flex;gap:10px;flex:1;min-width:0;overflow-x:auto}.pages button[data-v-c337256a]{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;flex:0 0 138px;min-height:78px;padding:6px 14px 6px 27px;border:1px solid #e1e8f0;background:#f2f6f9;border-radius:9px;color:#122039}.pages button.selected[data-v-c337256a]{border:3px solid #bd95ff;background:linear-gradient(90deg,#b685fa 0 25px,#fff 25px)}.page-number[data-v-c337256a]{position:absolute;left:8px;top:10px;font-size:17px;font-weight:700}.pages button.selected .page-number[data-v-c337256a]{color:#fff}.page-preview[data-v-c337256a]{height:38px;display:flex;align-items:center;justify-content:center;width:100%;font-size:15px;line-height:1.2;overflow:hidden;white-space:pre-wrap;background:#fff}.page-preview img[data-v-c337256a]{width:100%;height:100%;object-fit:contain}.pages strong[data-v-c337256a]{font-size:14px;line-height:1.3;padding-top:4px}.add-page[data-v-c337256a]{color:#853bff;background:#f3ecff;border:0;white-space:nowrap;min-height:64px;padding:8px 20px}.add-page b[data-v-c337256a]{font-size:28px;vertical-align:middle}.duplicate-page[data-v-c337256a]{border:0;background:#eff4f8;white-space:nowrap;min-height:64px;padding:8px 18px;font-size:15px;color:#15213c}.page-menu-wrap[data-v-c337256a]{position:relative}.page-menu-wrap>button[data-v-c337256a]{white-space:nowrap}.page-menu[data-v-c337256a]{position:absolute;bottom:60px;right:0;display:flex;flex-direction:column;z-index:8;background:#fff;border:1px solid #e1e8f0;padding:7px;border-radius:10px;box-shadow:0 8px 22px #19253d22;width:130px}.page-menu button[data-v-c337256a]{font-size:13px;padding:6px}.zoom[data-v-c337256a]{display:flex;border:1px solid #dce6f0;border-radius:9px;background:#fff}.zoom button[data-v-c337256a]{border:0;background:transparent;padding:8px 10px;font-size:16px;white-space:nowrap}.fullscreen[data-v-c337256a]{display:grid;place-items:center;padding:10px;background:#fff;border:1px solid #dce6f0}.student-page[data-v-c337256a]{display:flex;gap:6px;align-items:center;padding:12px;border:1px solid #e1e8f0;border-radius:8px;white-space:nowrap;font-size:13px}.student-page.selected[data-v-c337256a]{background:#ede1ff;border-color:#a579f0}.conflicts[data-v-c337256a]{background:#fff1d5;padding:10px;font-size:13px}.note[data-v-c337256a],.error[data-v-c337256a]{font-size:12px;margin:6px}@media(max-width:800px){.board-stage[data-v-c337256a],.viewport[data-v-c337256a]{min-height:55dvh;height:55dvh}.tools[data-v-c337256a]{left:8px;top:10px;max-height:calc(55dvh - 30px);overflow:auto;width:48px;padding:6px;gap:1px}.tools button[data-v-c337256a]{width:36px;height:36px;min-height:36px;padding:6px}.tools svg[data-v-c337256a]{width:22px;height:22px}.tools .color-dot[data-v-c337256a]{width:24px;height:24px;min-height:24px;margin:3px}.tool-divider[data-v-c337256a]{width:28px}.pagebar[data-v-c337256a]{gap:6px;flex-wrap:wrap}.pages[data-v-c337256a]{flex-basis:100%}.pages button[data-v-c337256a]{flex-basis:100px;min-height:65px}.add-page[data-v-c337256a]{min-height:48px;padding:6px 12px}.sync[data-v-c337256a]{left:64px;right:8px;font-size:10px;flex-wrap:wrap}.zoom[data-v-c337256a]{margin-left:auto}.private-tools[data-v-c337256a]{right:6px;top:8px}.pen-width[data-v-c337256a]{display:none}}.voice-panel[data-v-1cad4784]{position:relative;display:flex;align-items:center;gap:8px;flex-wrap:nowrap;padding:0;background:transparent}.voice-icon[data-v-1cad4784]{display:grid;place-items:center;flex:0 0 42px;width:42px;height:42px;min-height:42px;padding:10px;border:1px solid #dce5ef;border-radius:50%;background:#fff;color:#101d3a}.voice-icon svg[data-v-1cad4784]{width:24px;height:24px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}.voice-icon.muted[data-v-1cad4784]{color:#8c61c4;background:#f5efff}.voice-status[data-v-1cad4784]{font-size:10px;color:#64758a;position:absolute;top:43px;white-space:nowrap;left:0}.voice-error[data-v-1cad4784]{position:absolute;right:0;top:48px;z-index:10;margin:0;width:min(320px,80vw);padding:12px;background:#fff1ea;border:1px solid #e7b9aa;border-radius:10px;font-size:12px;box-shadow:0 4px 12px #20304012}.voice-problem[data-v-1cad4784]{position:absolute;right:0;top:43px;font-size:10px;color:#985745;white-space:nowrap;z-index:9}.voice-problem summary[data-v-1cad4784]{cursor:pointer}.voice-problem .voice-error[data-v-1cad4784]{top:15px;right:0;left:auto;white-space:normal;display:block}@media(max-width:650px){.voice-icon[data-v-1cad4784]{width:36px;height:36px;min-height:36px;flex-basis:36px;padding:8px}.voice-panel[data-v-1cad4784]{gap:5px}.voice-status[data-v-1cad4784]{top:36px}}.teacher-tools[data-v-651e1fb8]{position:relative}.buttons[data-v-651e1fb8]{display:flex;gap:10px;justify-content:flex-end}.buttons button[data-v-651e1fb8]{border:1px solid #a57aff;border-radius:24px;color:#7830ee;background:#fff;font-size:14px;padding:9px 18px;min-height:42px;white-space:nowrap}.buttons .similar-button[data-v-651e1fb8]:before{content:"✦";font-size:21px;margin-right:7px}.panel[data-v-651e1fb8]{position:absolute;right:0;top:50px;z-index:20;width:320px;max-height:calc(100dvh - 250px);overflow:auto;padding:18px;border:1px solid #dfe6f1;border-radius:14px;background:#fff;box-shadow:-5px 7px 24px #1e365718;color:#14203c}.panel h3[data-v-651e1fb8]{font-size:18px;margin:0 25px 2px 0}.private-label[data-v-651e1fb8]{display:block;color:#7183a2;font-size:12px;margin-bottom:18px}.panel label[data-v-651e1fb8]:has(input[type=checkbox]){display:flex;align-items:center;font-weight:400;gap:5px}.panel label[data-v-651e1fb8]{display:block;margin:12px 0 6px;font-size:13px;font-weight:600}.panel label small[data-v-651e1fb8]{color:#8b91b8;font-weight:400}.panel textarea[data-v-651e1fb8],.panel select[data-v-651e1fb8]{width:100%;border:1px solid #dbe3f0;border-radius:8px;background:#fafbfd;padding:10px;font-size:13px}.panel button[data-v-651e1fb8]{padding:9px;margin:4px 0;border:1px solid #b491ff;border-radius:8px;background:#fff;color:#7d43dc;min-height:38px;font-size:13px}.panel .close[data-v-651e1fb8]{position:absolute;right:8px;top:8px;font-size:25px;padding:0;width:32px;min-height:32px;margin:0;border:0;color:#172442;background:transparent}.difficulty[data-v-651e1fb8],.edit-actions[data-v-651e1fb8],.overview-tabs[data-v-651e1fb8]{display:flex;gap:6px}.difficulty button[data-v-651e1fb8],.edit-actions button[data-v-651e1fb8],.overview-tabs button[data-v-651e1fb8]{flex:1}.difficulty button[data-v-651e1fb8]{background:#f7f9fc;color:#202b44;border-color:#e2e7ef;padding:8px 4px}.difficulty button.selected[data-v-651e1fb8],.overview-tabs button.selected[data-v-651e1fb8]{background:#eee0ff;color:#7c32de;border-color:#ab80ff}.generation-form>button[data-v-651e1fb8],.panel label+button[data-v-651e1fb8]{width:100%;background:linear-gradient(100deg,#a974fc,#a782eb);color:#fff;border:0}.generation-form>button[data-v-651e1fb8]:disabled{background:#e5dafa;color:#fff}.source-setting[data-v-651e1fb8]{font-size:13px;padding:12px 0;color:#192846}.source-setting summary[data-v-651e1fb8]{cursor:pointer}.draft-list[data-v-651e1fb8]{font-size:12px;margin:10px 0}.draft-list button[data-v-651e1fb8]{display:block;width:100%;text-align:left}.question-preview[data-v-651e1fb8]{background:#f5f7fa;border-radius:10px;padding:14px;text-align:center;font-size:22px;line-height:1.5}.draft-preview[data-v-651e1fb8]{font-size:14px;line-height:1.7}.panel input[type=checkbox][data-v-651e1fb8]{width:16px;height:16px;min-height:16px;margin:0 5px 0 0;padding:0;display:inline-block;accent-color:#a372ea;vertical-align:middle}.overview-tabs[data-v-651e1fb8]{margin:10px 0 16px;background:#f1f5f9;border-radius:9px;padding:0}.overview-tabs button[data-v-651e1fb8]{border:0;margin:0;color:#65748a;background:transparent}.panel h4[data-v-651e1fb8]{font-size:13px;margin:14px 0 8px}.concepts details[data-v-651e1fb8]{border:1px solid #e2e9f0;border-radius:8px;padding:10px;margin:8px 0;font-size:13px}.concepts summary[data-v-651e1fb8]{cursor:pointer;font-weight:600}.concepts p[data-v-651e1fb8]{font-size:12px;color:#66778f}.concepts article[data-v-651e1fb8]{border-top:1px solid #e2e9f0;padding-top:6px}.blocker[data-v-651e1fb8]{background:#f2f6fa;border-radius:8px;padding:12px;font-size:13px}.panel article[data-v-651e1fb8]{font-size:13px;padding:8px;border:1px solid #e2e8f0;border-radius:8px;margin:6px 0}.panel article p[data-v-651e1fb8]{margin:5px 0}.panel article small[data-v-651e1fb8]{font-size:11px;color:#7d89a2}.observation-empty[data-v-651e1fb8]{border:1px solid #e4e8f0;border-radius:8px;padding:12px;font-size:13px;color:#a3aec0}.no-data[data-v-651e1fb8]{text-align:center;padding:25px 6px}.no-data>span[data-v-651e1fb8]{font-size:58px;color:#a9b8ca}.no-data h4[data-v-651e1fb8]{font-size:18px;margin:12px}.no-data p[data-v-651e1fb8]{font-size:13px}.no-data small[data-v-651e1fb8]{font-size:11px;color:#8b97ac}.no-data button[data-v-651e1fb8]{display:block;width:100%;margin-top:22px}.concept-records strong[data-v-651e1fb8]{display:block;font-size:13px}.error[data-v-651e1fb8]{font-size:12px;background:#fff1e8;padding:10px;border-radius:8px}@media(max-width:800px){.buttons[data-v-651e1fb8]{gap:5px}.buttons button[data-v-651e1fb8]{font-size:11px;padding:6px 9px;min-height:34px}.buttons .similar-button[data-v-651e1fb8]:before{font-size:14px;margin-right:4px}.panel[data-v-651e1fb8]{width:min(310px,calc(100vw - 30px));max-height:48dvh;top:40px;padding:14px}}.practice[data-v-66e954da]{max-width:420px;margin:10px auto 24px;padding:12px 18px;color:#122039}.practice.teacher[data-v-66e954da]{background:#edf8f3;border-radius:12px;max-width:none}.practice-tag[data-v-66e954da]{display:block;width:max-content;background:#e5f0eb;border-radius:22px;padding:8px 20px;font-size:14px;font-weight:600;margin:0 auto 18px}.practice-question[data-v-66e954da]{display:flex;align-items:center;justify-content:center;min-height:160px;padding:22px;background:#e8f3ed;border-radius:20px;font-size:24px;margin:0 0 25px}.practice label[data-v-66e954da]{font-size:16px;font-weight:600}.practice textarea[data-v-66e954da]{width:100%;min-height:150px;margin:12px 0 20px;padding:16px;border:1px solid #cad3df;border-radius:18px;background:transparent;font-size:16px}.practice form>button[data-v-66e954da],.success-view>a[data-v-66e954da]{display:block;width:100%;border:0;border-radius:16px;padding:14px;background:#b29ae5;color:#fff;text-decoration:none;text-align:center}.practice h3[data-v-66e954da]{font-size:16px}.practice h4[data-v-66e954da]{font-size:14px}.practice article[data-v-66e954da]{border-top:1px solid #d1e4db;padding:8px 0}.practice small[data-v-66e954da]{color:#626b67;font-size:11px}.practice-feedback[data-v-66e954da]{background:#e6f2ec;border-radius:16px;padding:16px;line-height:1.6;font-size:16px}.practice-feedback>span[data-v-66e954da]{display:block;font-size:12px;margin-bottom:4px;color:#5e776c}.practice-picker[data-v-66e954da]{display:flex;gap:8px;max-width:420px;margin:10px auto;padding:0 18px}.practice-picker button[data-v-66e954da]{font-size:12px;padding:8px;border:1px solid #d6c9ea;background:#fff;border-radius:8px}.practice-picker button.selected[data-v-66e954da]{background:#eee2fb}.attempt-records[data-v-66e954da]{font-size:12px;padding:15px 0}.attempt-records summary[data-v-66e954da]{cursor:pointer;color:#6e7f8b}.success-view[data-v-66e954da]{text-align:center}.success-check[data-v-66e954da]{display:grid;place-items:center;width:70px;height:70px;background:#91cbb7;color:#fff;border-radius:50%;font-size:44px;margin:20px auto}.success-view h2[data-v-66e954da]{font-size:25px}.success-answer[data-v-66e954da]{background:#e8f3ed;border-radius:20px;padding:18px;font-size:21px}.success-view>img[data-v-66e954da]{display:block;width:100%;height:170px;object-fit:contain;margin:18px 0 5px}.revealed-answer[data-v-66e954da]{font-size:13px;background:#f4f1fa;border-radius:10px;padding:14px}.error[data-v-66e954da]{font-size:13px;color:#a04d3f}.classroom-page[data-v-1ea1534e]{padding-top:8px}.classroom-page .page-heading[data-v-1ea1534e]{display:none}.classroom-grid.teaching[data-v-1ea1534e]{display:block}.teaching .question-context[data-v-1ea1534e]{display:block;position:relative;margin:0 0 8px;padding:0;border:0;background:transparent;border-radius:0;box-shadow:none}.teaching .question-context .drawer-toggle[data-v-1ea1534e]{font-size:12px;padding:4px 10px;min-height:32px;background:#f6f8fb;border:1px solid #e2e8ef;border-radius:8px}.teaching .question-context .context-body[data-v-1ea1534e]{display:none}.teaching .question-context.open .context-body[data-v-1ea1534e]{display:block;max-height:40vh;overflow:auto;background:#fff;padding:16px;border:1px solid #e2e8ef;border-radius:12px}.classroom-work[data-v-1ea1534e]{position:relative}.question-context img[data-v-1ea1534e]{max-height:200px;object-fit:contain}.live-room[data-v-1ea1534e]{max-width:none;padding:0 14px 8px;background:#fbfdff}.live-room>.back[data-v-1ea1534e]{display:none}.room-toolbar[data-v-1ea1534e]{display:flex;align-items:center;gap:14px;min-height:64px;padding:8px 6px 12px;color:#111e3c}.room-brand[data-v-1ea1534e]{display:flex;gap:12px;align-items:center;white-space:nowrap;font-size:20px}.brand-mark[data-v-1ea1534e]{display:grid;place-items:center;width:42px;height:42px;background:linear-gradient(135deg,#b283ff,#9657ff);border-radius:11px;color:#fff;font-size:29px}.room-name[data-v-1ea1534e]{font-size:18px;border-left:1px solid #dbe3ed;padding-left:12px}.room-participants[data-v-1ea1534e]{display:flex;gap:16px;margin-left:auto;font-size:14px;font-weight:600}.participant[data-v-1ea1534e]{display:flex;gap:7px;align-items:center;white-space:nowrap}.participant b[data-v-1ea1534e]{position:relative;display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#c197fd;color:#fff;font-size:20px;font-weight:400}.participant b[data-v-1ea1534e]:after{content:"";position:absolute;bottom:0;right:0;width:9px;height:9px;background:#00cd68;border:2px solid white;border-radius:50%}.participant.student b[data-v-1ea1534e]{background:#97e2c5}.pen-switch[data-v-1ea1534e]{display:flex;align-items:center;gap:8px;background:#f6f0ff;border:1px solid #e0d3ff;color:#8741ef;font-size:13px;white-space:nowrap;padding:8px 12px}.pen-switch span[data-v-1ea1534e]{color:#17233f;font-weight:600}.pen-switch i[data-v-1ea1534e]{width:42px;height:24px;background:#c6cbd3;border-radius:24px;position:relative}.pen-switch i[data-v-1ea1534e]:after{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;border-radius:50%;background:#fff}.pen-switch i.on[data-v-1ea1534e]{background:#ae7aff}.pen-switch i.on[data-v-1ea1534e]:after{left:21px}.end-class[data-v-1ea1534e]{border:1px solid #ff4545;color:#ef3939;background:#fff;white-space:nowrap;font-size:14px;padding:10px 14px}.close-overlay[data-v-1ea1534e]{position:fixed;inset:0;background:#13223b40;display:grid;place-items:center;z-index:50;padding:20px}.close-sheet[data-v-1ea1534e]{position:relative;background:#fff;border-radius:24px;padding:28px;width:min(100%,440px);box-shadow:0 20px 60px #14223920}.close-sheet h2[data-v-1ea1534e]{font-size:24px}.close-sheet p[data-v-1ea1534e]{font-size:14px;color:#67748a}.close-sheet textarea[data-v-1ea1534e]{width:100%;border:1px solid #dfe6f0;border-radius:12px}.close-dialog[data-v-1ea1534e]{position:absolute;right:12px;top:12px;border:0;background:transparent;font-size:24px}.close-actions[data-v-1ea1534e]{display:flex;gap:10px;margin-top:18px}.close-actions button[data-v-1ea1534e]{flex:1}.after-summary[data-v-1ea1534e],.after-practice[data-v-1ea1534e]{max-width:420px;margin:16px auto 24px;padding:10px 18px 24px}.after-summary h1[data-v-1ea1534e]{font-size:32px;text-align:center;margin:12px 0 22px;color:#101d35}.teacher-summary[data-v-1ea1534e]{padding:20px;background:#e7f2ed;border-radius:20px;color:#14213a}.teacher-summary>span[data-v-1ea1534e]{font-size:15px}.teacher-summary p[data-v-1ea1534e]{color:#14213a;font-size:22px;font-weight:600;margin:10px 0 0}.after-summary h3[data-v-1ea1534e]{font-size:17px;margin:20px 0 10px}.saved-page-list[data-v-1ea1534e]{display:flex;gap:8px;overflow:auto}.saved-page-list button[data-v-1ea1534e]{display:flex;flex-direction:column;gap:4px;min-width:95px;max-width:130px;padding:0;border:0;background:transparent}.saved-page-icon[data-v-1ea1534e]{width:100%;display:grid;place-items:center;height:90px;background:#eef3ef;border-radius:10px;color:#a5947d;font-size:38px}.saved-page-icon img[data-v-1ea1534e]{width:100%;height:100%;object-fit:contain;border-radius:10px}.saved-page-list small[data-v-1ea1534e]{display:block;font-size:12px;white-space:nowrap;margin:5px 0}.after-companions[data-v-1ea1534e]{display:block;width:100%;height:170px;object-fit:contain;margin:22px 0 0}.after-summary>button[data-v-1ea1534e],.after-practice>button[data-v-1ea1534e],.after-practice form>button[data-v-1ea1534e],.practice-success>a[data-v-1ea1534e]{font-size:17px;display:block;width:100%;padding:13px;margin:12px 0;border:1px solid #b4bdca;background:#fff;border-radius:16px;text-align:center;text-decoration:none}.after-summary .primary[data-v-1ea1534e],.after-practice .primary[data-v-1ea1534e]{border:0;background:#b29ae5;color:#fff}.after-back[data-v-1ea1534e]{margin:12px 0;font-size:13px;border:0;background:transparent}.after-practice>.matching-tag[data-v-1ea1534e]{width:max-content;margin:0 auto 16px}.practice-question[data-v-1ea1534e]{background:#e8f3ed;min-height:160px;display:flex;align-items:center;justify-content:center;padding:20px;border-radius:20px;font-size:24px;margin:14px 0 22px}.after-practice label[data-v-1ea1534e]{font-size:17px;font-weight:600}.after-practice textarea[data-v-1ea1534e]{width:100%;margin:12px 0 16px;min-height:150px;border:1px solid #ccd4df;border-radius:18px;padding:16px;font-size:16px;background:transparent}.practice-feedback[data-v-1ea1534e]{padding:15px;border-radius:16px;background:#e8f3ed;font-size:15px}.practice-success[data-v-1ea1534e]{padding:24px 8px;text-align:center}.success-check[data-v-1ea1534e]{display:grid;place-items:center;width:70px;height:70px;background:#91cbb7;color:#fff;border-radius:50%;font-size:44px;margin:0 auto 20px}.practice-success h2[data-v-1ea1534e]{font-size:25px}.practice-success>img[data-v-1ea1534e]{width:100%;height:170px;object-fit:contain}.matching-screen[data-v-1ea1534e]{max-width:420px;margin:16px auto 24px;text-align:center;background:#fffefa;padding:24px 28px;border-radius:24px}.matching-screen h1[data-v-1ea1534e]{font-size:32px;line-height:1.3;margin:10px 0 24px;color:#101c34}.matching-tag[data-v-1ea1534e],.blocker[data-v-1ea1534e]{display:block;background:#e0efeb;border-radius:18px;padding:10px 16px;font-size:15px}.matching-tag[data-v-1ea1534e]{display:inline-block}.teacher-avatar[data-v-1ea1534e]{width:130px;height:130px;border-radius:50%;background:#e0efeb;margin:24px auto;font-size:64px;color:#101d34;display:grid;place-items:center}.matching-screen img[data-v-1ea1534e]{width:100%;max-height:145px;object-fit:contain;border-radius:12px}.matching-screen p[data-v-1ea1534e]{font-size:16px;color:#1a2943}.matching-screen .matching-subject[data-v-1ea1534e]{font-weight:600}.waiting-dots[data-v-1ea1534e]{color:#aa93e4;font-size:15px;letter-spacing:3px}.matching-screen>button[data-v-1ea1534e],.matching-screen>a[data-v-1ea1534e]{display:block;width:100%;margin:12px 0;padding:13px;border:1px solid #a8b1c0;border-radius:16px;min-height:52px;color:#14203a;text-decoration:none;background:#fff}.matching-screen .primary[data-v-1ea1534e]{background:#ac94e6;color:#fff;border:0}.matching-screen .primary[data-v-1ea1534e]:disabled{background:#d2d4df}.device-row[data-v-1ea1534e]{display:flex;gap:12px;align-items:center;text-align:left;padding:14px;border:1px solid #dce2eb;border-radius:12px;margin:12px 0}.device-row>span[data-v-1ea1534e]{font-size:26px}.device-row>div[data-v-1ea1534e]{flex:1}.device-row small[data-v-1ea1534e]{display:block;font-size:12px;color:#788496}.device-row button[data-v-1ea1534e]{font-size:13px;padding:9px 12px;background:#ad94e5;color:#fff;border:0;border-radius:10px}.matching-screen h3[data-v-1ea1534e]{font-size:16px;border-top:1px solid #e0e5eb;padding-top:18px}@media(max-width:1050px){.room-toolbar[data-v-1ea1534e]{gap:9px;flex-wrap:wrap}.room-brand[data-v-1ea1534e]{font-size:17px}.room-name[data-v-1ea1534e]{font-size:15px}.room-participants[data-v-1ea1534e]{font-size:12px;gap:8px}.participant b[data-v-1ea1534e]{width:30px;height:30px;font-size:16px}}@media(max-width:650px){.live-room[data-v-1ea1534e]{padding:0 6px 8px}.room-toolbar[data-v-1ea1534e]{min-height:88px;gap:7px;padding:7px 3px}.room-brand[data-v-1ea1534e]{font-size:15px}.brand-mark[data-v-1ea1534e]{width:30px;height:30px;font-size:20px}.room-name[data-v-1ea1534e]{font-size:13px}.room-participants[data-v-1ea1534e]{margin-left:auto}.participant[data-v-1ea1534e]{font-size:0;gap:0}.pen-switch[data-v-1ea1534e]{padding:6px 8px;font-size:11px;min-height:36px}.end-class[data-v-1ea1534e]{padding:6px 8px;font-size:12px;min-height:36px}.matching-screen[data-v-1ea1534e]{padding:16px;margin:8px auto}.matching-screen h1[data-v-1ea1534e]{font-size:29px}}.live-room .question-context[data-v-1ea1534e]{display:none!important}.live-room .question-context.open[data-v-1ea1534e]{display:block!important;position:fixed;right:18px;top:84px;z-index:44;width:min(420px,calc(100vw - 36px));max-height:75dvh;overflow:auto;box-shadow:0 16px 50px #11182c24;background:#fff;border:1px solid #e2e6ed}.room-history[data-v-1ea1534e]{width:42px;min-height:42px;padding:0;background:transparent;font-size:25px}.request-pen[data-v-1ea1534e]{background:#b097e8;color:#fff;min-height:44px;border-radius:14px;padding:8px 15px;font-size:14px}@media(max-width:650px){.request-pen[data-v-1ea1534e]{font-size:11px;padding:6px 8px;min-height:36px}.room-history[data-v-1ea1534e]{width:32px;min-height:32px}.live-room .question-context.open[data-v-1ea1534e]{top:96px}}:root{font-family:Noto Sans TC,-apple-system,BlinkMacSystemFont,PingFang TC,sans-serif;color:#172033;background:#f5f5f8;font-synthesis:none;--purple:#eee7f7;--mint:#e3f0ed;--yellow:#fff3cd;--blue:#e6eefb;--dark:#172033;--link:#654585;--accent:#b09ade}*{box-sizing:border-box}body{margin:0}a{color:var(--link);text-decoration:none}button,input,textarea,select{font:inherit}button,.primary,.secondary{min-height:48px;padding:12px 20px;border:0;border-radius:16px;cursor:pointer;background:#fff;color:var(--dark);display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;line-height:1.5}button:hover,.secondary:hover{box-shadow:inset 0 0 0 2px #b99bd8}.primary{background:var(--accent);color:var(--dark)}.primary:hover{background:#a38ace}.secondary{background:#fff;color:var(--dark)}button:disabled{opacity:.55;cursor:not-allowed}button.ghost{padding:8px 12px;background:transparent;font-weight:400}button.selected{background:var(--accent);color:var(--dark)}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--link);outline-offset:4px}h1,h2,h3,h4,p{margin-top:0}h1{font-size:clamp(28px,3.3vw,44px);line-height:1.4;letter-spacing:-.04em;margin-bottom:16px;font-weight:800}h2{font-size:23px;line-height:1.5;letter-spacing:-.025em;margin-bottom:14px}h3{font-size:18px;line-height:1.6;margin-bottom:10px}p{font-size:16px;line-height:1.85;color:#505963;margin-bottom:18px;overflow-wrap:anywhere}small{font-size:13px;color:#505963}.app-shell{max-width:1400px;margin:auto;padding-bottom:100px}.topbar{padding:24px 40px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{font-size:24px;font-weight:800;color:var(--dark);white-space:nowrap}.brand small{font-weight:400;padding-left:12px}.account{display:flex;align-items:center;gap:12px;font-size:14px}.page{max-width:1100px;padding:20px 32px 32px;margin:auto}.page.narrow{max-width:800px}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:16px 0 24px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.15em;color:#505963;display:block;margin-bottom:16px}.circle-icon{display:flex;align-items:center;justify-content:center;width:76px;height:76px;flex-shrink:0;background:#fff;border-radius:50%;font-size:36px}.card{background:#fff;border-radius:24px;padding:24px;margin-bottom:20px}.lavender{background:var(--purple)}.mint{background:var(--mint)}.yellow{background:var(--yellow)}.blue{background:var(--blue)}.pill{display:inline-flex;align-items:center;justify-content:center;border-radius:100px;padding:7px 14px;font-size:12px;font-weight:500;line-height:1.5;background:#f5f5f8;color:var(--dark);max-width:100%}.pill.lavender{background:var(--purple)}.pill.mint{background:var(--mint)}.pill.yellow{background:var(--yellow)}.pill.blue{background:var(--blue)}.hero{border-radius:32px;padding:36px;display:grid;grid-template-columns:1.5fr 1fr;align-items:center;gap:24px;margin-bottom:30px;overflow:hidden}.hero h2{font-size:34px;line-height:1.5;margin-top:22px}.hero img{max-width:100%;border-radius:28px}.actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:16px 0}.upload-button{position:relative;overflow:hidden}.upload-button input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;padding:0}.grid{display:grid;gap:20px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid .card{margin-bottom:0}.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-bottom:24px}.stat{border-radius:28px;padding:24px;display:grid;gap:10px}.stat strong{font-size:44px;line-height:1.2}.stat span{font-weight:600}.section-title{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:28px 0 16px}.section-title h2{margin:0}.card .section-title{margin-top:0}.list-item{display:flex;gap:16px;justify-content:space-between;align-items:center;color:var(--dark);min-height:60px;line-height:1.8}.navigation{position:fixed;z-index:10;bottom:18px;left:50%;transform:translate(-50%);background:#fff;box-shadow:0 8px 30px #20252b15;border:1px solid #eee;border-radius:24px;padding:8px 14px;display:flex;justify-content:center;gap:12px;max-width:calc(100% - 32px)}.navigation a{min-width:90px;min-height:58px;display:flex;align-items:center;justify-content:center;gap:6px;border-radius:16px;font-size:18px;color:#505963;flex-direction:column}.navigation a span{font-size:12px}.navigation a.router-link-exact-active{background:var(--purple);color:#20252b}.auth-layout{max-width:1100px;margin:20px auto;display:grid;grid-template-columns:1.05fr 1fr;gap:28px;padding:0 32px}.welcome{border-radius:32px;padding:40px;display:flex;flex-direction:column;justify-content:center}.welcome img{width:100%;max-width:380px;border-radius:28px;align-self:center;margin-top:16px}.welcome h1{font-size:38px}.auth-form{padding:36px;margin:0}.auth-form h2{font-size:30px}.full{width:100%}.center{text-align:center;margin-top:24px}.note{font-size:13px;line-height:1.75;margin:16px 0 0}.empty{padding:24px;text-align:center;color:#505963;line-height:1.9}.empty-companions{max-width:240px;width:100%;border-radius:24px;margin-bottom:16px}.error{background:#fff0ed;color:#8c3027;border:1px solid #edc6bf;border-radius:16px;padding:14px 16px;font-size:14px;line-height:1.8;margin:12px 0}.error button{padding:6px 12px;margin-left:8px;background:#fff;min-height:44px}.state{padding:20px;border-radius:16px;background:#f5f5f8;margin:16px 0;line-height:1.8}.back{display:inline-flex;align-items:center;min-height:48px;font-size:14px}label{display:grid;gap:8px;font-size:14px;font-weight:600;margin-bottom:18px;color:#20252b}input,textarea,select{width:100%;min-height:48px;border:1px solid #ccd0d6;background:#fff;border-radius:14px;padding:12px 14px;color:#20252b;font-size:16px}textarea{resize:vertical;line-height:1.75}label.check{display:flex;align-items:center;gap:12px;min-height:48px}.check input{width:22px;height:22px;min-height:22px}.question-image{display:block;max-width:100%;max-height:360px;border-radius:16px;object-fit:contain;margin:16px auto}.step-card{display:flex;gap:16px;padding:20px;background:#fff;border-radius:18px;margin-bottom:14px}.step-card h3{margin-top:4px}.step-number{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--purple);border-radius:50%;flex-shrink:0;font-size:14px;font-weight:700}.formula{font-size:20px;font-family:ui-monospace,monospace;color:var(--dark);overflow-wrap:anywhere;white-space:pre-wrap}.messages{max-height:440px;overflow:auto;padding:8px 0}.message{background:#f5f5f8;border-radius:18px;padding:16px;margin-bottom:12px}.message.student{background:var(--purple);margin-left:36px}.message.assistant{background:var(--mint);margin-right:24px}.message p{white-space:pre-wrap;margin-bottom:0}.message small{display:block;margin-bottom:6px}.teacher-grid{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:24px}.teacher-card{display:flex;flex-direction:column}.teacher-card p{flex-grow:1}.avatar{width:60px;height:60px;border-radius:50%;background:var(--purple);display:flex;align-items:center;justify-content:center;font-size:24px}.record-card{display:flex;flex-direction:column;gap:10px;color:var(--dark)}.record-card h3{margin-bottom:0}.record-card span:last-child{align-self:flex-end;font-size:14px}.lesson-row{display:flex;align-items:center;gap:20px;color:var(--dark)}.lesson-row>div{flex:1}.lesson-row h3{margin:8px 0 0}.admin-stats{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.admin-stats .card{display:grid;gap:12px}.admin-stats strong{font-size:32px}.tabs{display:flex;gap:12px;margin:16px 0 28px;flex-wrap:wrap}.review-card{display:flex;gap:28px;justify-content:space-between;align-items:center}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:14px;text-align:left}th,td{padding:16px;border-bottom:1px solid #eee;line-height:1.8}th{white-space:nowrap}code{font-size:15px;color:var(--link)}.app-shell.classroom{padding-bottom:0}.classroom-page{max-width:1300px}.classroom-grid.teaching{display:grid;grid-template-columns:minmax(230px,.65fr) minmax(0,1.8fr);gap:20px;align-items:start}.question-context{margin-bottom:20px}.drawer-toggle{display:none}.preserve{white-space:pre-wrap}.voice-panel{padding:20px;background:var(--purple);border-radius:24px;margin-bottom:16px}.voice-panel .section-title{margin:0}.voice-panel .actions{margin-bottom:0}.board-panel{background:#fff;border-radius:24px;padding:16px;margin-bottom:20px}.board-toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.board-toolbar button{background:#f5f5f8;font-size:13px;padding:10px 14px}.board-toolbar button.selected{background:var(--link);color:#fff}.color-label{display:flex;align-items:center;margin:0;font-size:12px;gap:6px}.color-label input{width:48px;padding:5px}.board-status{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:#505963;margin:14px 0}.whiteboard{width:100%;height:430px;display:block;touch-action:none;background:#fff;border:1px solid #e2d9eb;border-radius:12px;cursor:crosshair}.waiting{position:relative;padding-right:260px;min-height:250px}.waiting img{position:absolute;right:20px;top:26px;max-width:210px;border-radius:20px}.practice-feedback{background:#fff;border-radius:16px;padding:20px;margin-top:16px}details{margin:20px 0}summary{cursor:pointer;min-height:48px;display:list-item;line-height:1.8;font-size:14px;padding:12px 4px;font-weight:600}.context-body details article{padding:12px;background:#f5f5f8;border-radius:14px;margin-bottom:10px}.context-body p{font-size:14px}.context-body h2{font-size:20px}@media(max-width:900px){.topbar{padding:20px 24px}.teacher-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-stats{grid-template-columns:repeat(3,1fr)}.auth-layout{gap:20px;padding:0 24px}.welcome{padding:28px}.welcome h1{font-size:30px}.classroom-grid.teaching{grid-template-columns:1fr}.classroom-grid.teaching .drawer-toggle{display:flex;width:100%;justify-content:space-between}.classroom-grid.teaching .context-body{display:none}.classroom-grid.teaching .open .context-body{display:block;margin-top:18px}.whiteboard{height:480px}}@media(max-width:600px){.topbar{padding:18px 20px}.brand{font-size:20px}.brand small{display:none}.topbar>.pill{font-size:10px;padding:6px 10px}.account{gap:4px;font-size:12px}.page{padding:8px 20px 24px}.page-heading{margin-top:12px}.page-heading .circle-icon{width:58px;height:58px;font-size:28px}.hero{grid-template-columns:1fr;gap:16px;padding:24px}.hero h2{font-size:30px}.hero img{width:180px;justify-self:end;margin-top:-24px}.hero .actions{position:relative;z-index:1}.actions{gap:8px}.hero .actions .primary,.hero .actions .secondary{width:100%}.grid.two{grid-template-columns:1fr}.stat-grid{gap:12px}.stat{padding:20px}.stat strong{font-size:38px}.stat small{font-size:11px}.card{padding:20px}.navigation{bottom:12px;padding:6px;width:calc(100% - 32px);gap:4px}.navigation a{min-width:0;flex:1;font-size:20px;min-height:56px}.auth-layout{grid-template-columns:1fr;padding:0 20px;gap:20px}.welcome{padding:24px}.welcome img{max-width:220px;margin-top:0}.welcome h1{font-size:30px}.welcome p{font-size:14px}.auth-form{padding:24px}.teacher-grid{grid-template-columns:1fr}.section-title{align-items:flex-start}.section-title h2{font-size:21px}.section-title>span,.section-title>a{font-size:12px;line-height:1.8}.lesson-row{flex-wrap:wrap;gap:12px}.lesson-row>div{flex-basis:100%}.admin-stats{grid-template-columns:repeat(2,1fr);gap:12px}.admin-stats .card{padding:16px}.review-card{display:block}.whiteboard{height:380px}.board-panel{padding:12px}.board-toolbar{gap:6px}.board-toolbar button{font-size:12px;padding:8px 10px}.waiting{padding:24px;min-height:0}.waiting img{position:static;display:block;max-width:160px;margin:16px auto}.step-card{padding:16px;gap:10px}.message.student{margin-left:20px}.message.assistant{margin-right:16px}.classroom-page .page-heading h1{font-size:28px}.voice-panel{padding:16px}.voice-panel .section-title{flex-wrap:wrap}.voice-panel .primary{width:100%;font-size:14px}.question-context{padding:16px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}.version-label{text-align:center;font-size:10px;color:#505963;letter-spacing:.04em;padding:24px 10px 0}.subject-select{max-width:220px;margin-top:20px}.subject-select select{background:#ffffffd9}select[multiple]{min-height:120px}:root{--surface:#fff;--background:#f5f5f8;--muted:#505963;--radius-card:24px;--space:8px}body{background:var(--background)}.topbar{height:56px;padding:0 24px;border-bottom:1px solid #e8e5ec;background:#fff;position:relative;z-index:20}.header-start{display:flex;align-items:center;gap:8px;min-width:0}.header-title{font-size:16px;font-weight:700}.topbar .brand{font-size:24px;min-width:40px}.icon-button{width:48px;padding:8px;background:transparent}.account-menu{position:relative;margin:0}.account-menu>summary{list-style:none;width:48px;height:48px;text-align:center;padding:6px;font-size:25px}.account-menu>summary::-webkit-details-marker{display:none}.account-popover{position:absolute;right:0;top:48px;width:220px;border:1px solid #ece6f2;background:#fff;border-radius:18px;padding:16px;box-shadow:0 12px 32px #20252b18}.account-popover a,.account-popover button{display:flex;align-items:center;min-height:48px}.account-popover p{font-size:13px;margin:0}.skip-link{position:fixed;top:-100px;left:16px;z-index:100;background:#fff;padding:12px}.skip-link:focus{top:8px}.workspace-page{max-width:1120px;padding-top:24px}.workspace-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.workspace-heading h1{font-size:clamp(24px,3vw,32px);margin:0;line-height:1.45}.workspace-heading .eyebrow{margin-bottom:8px;letter-spacing:0}.workspace-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0 28px}.workspace-tabs button{background:#fff;gap:8px}.workspace-tabs .selected{background:var(--accent);color:var(--dark)}.workspace-tabs button span{font-size:12px}.request-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}.request-meta h3{margin:0}.request-card h3{margin-top:16px;min-height:58px}.request-card p{min-height:48px;font-size:14px}.line-clamp{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.compact-lesson{display:flex;justify-content:space-between;align-items:center;gap:16px;color:var(--dark)}.compact-lesson>div{min-width:0;flex:1}.compact-lesson h3{margin:8px 0}.notice-bell{position:relative;width:56px;height:56px;border-radius:50%;font-size:24px;flex-shrink:0}.notice-count{position:absolute;right:-2px;top:-2px;min-width:22px;height:22px;padding:2px 5px;border-radius:100px;background:var(--link);color:#fff;font-size:11px}.notice-row{width:100%;justify-content:flex-start;text-align:left;gap:16px;font-weight:400;position:relative;border:1px solid transparent}.notice-row>div{flex:1;min-width:0}.notice-row>span:last-child{white-space:nowrap;font-size:13px}.notice-row.unread{border-color:#b99bd8;background:#f3edf8}.notice-row p{font-size:14px;margin:8px 0}.unread-dot{width:8px;height:8px;background:var(--link);border-radius:50%;flex-shrink:0}.approval-note h2{margin-top:16px}.profile-form{max-width:720px}.subject-checks{display:flex;flex-wrap:wrap;gap:16px}.subject-checks label{margin:0}fieldset{border:0;margin:0 0 16px;padding:0}legend{font-size:14px;font-weight:600;padding:0;margin-bottom:8px}.feedback-success{background:var(--mint);padding:12px 16px;border-radius:16px;font-size:14px}.ops-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.ops-summary .card{display:grid;gap:16px}.ops-summary strong{font-size:32px}.inline-label{display:flex;align-items:center;gap:8px;margin:0;font-size:12px}.inline-label select{width:auto;max-width:160px}.modal-backdrop{position:fixed;z-index:60;inset:0;background:#20252b70;display:flex;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(3px)}.modal-card{background:var(--surface);border-radius:28px;padding:24px;width:min(640px,100%);max-height:calc(100dvh - 40px);overflow:auto;box-shadow:0 20px 80px #20252b30}.modal-card .section-title{margin:0 0 16px}.modal-card .section-title>button{width:48px;padding:8px;flex-shrink:0}.modal-card h3{margin-top:16px}.modal-card .question-image{max-height:300px}.modal-card .card{padding:16px}.teacher-detail .avatar{margin-bottom:16px}.teacher-detail .actions{gap:8px}.app-shell.classroom .classroom-grid.teaching{display:block}.app-shell.classroom .classroom-page{padding-top:8px}.app-shell.classroom .page-heading{margin:8px 0}.app-shell.classroom .page-heading h1{font-size:20px}.app-shell.classroom .eyebrow{display:none}.app-shell.classroom .drawer-toggle{display:flex;width:100%;justify-content:space-between}.app-shell.classroom .question-context .context-body{display:none}.app-shell.classroom .question-context.open .context-body{display:block}.app-shell.classroom .question-context{padding:8px 16px;margin-bottom:8px}.app-shell.classroom .back{display:none}.app-shell.solving{padding-bottom:24px}@media(max-width:600px){.topbar{padding:0 12px}.header-title{font-size:15px}.workspace-page{padding-top:20px}.workspace-tabs{gap:6px;margin:16px 0 24px}.workspace-tabs button{padding:10px 12px;font-size:13px}.workspace-heading h1{font-size:24px}.workspace-heading>button{padding:10px 12px;font-size:13px}.ops-summary{gap:8px}.ops-summary .card{padding:14px 12px}.ops-summary strong{font-size:26px}.ops-summary small{font-size:11px}.modal-backdrop{padding:12px;align-items:flex-end}.modal-card{padding:20px;border-radius:24px;max-height:calc(100dvh - 24px)}.review-card .primary{width:100%}.notice-row{padding:16px}.notice-row>span:last-child{font-size:12px}.inline-label{gap:4px}.inline-label select{max-width:130px}.compact-lesson{padding:20px}}:root{--border:#e5e7ef;--background:#f5f6f8}h1,h2,h3{letter-spacing:0}h1{font-weight:700}button,.primary,.secondary{border-radius:16px;font-weight:600}.card{border:1px solid var(--border);box-shadow:none}.secondary{border:1px solid #c7ccdb}.pill{font-weight:500}.navigation{box-shadow:none;border-color:var(--border)}.navigation a.router-link-exact-active{background:#f4eefb;color:#654585}.navigation svg{width:24px;height:24px}.student-companion{display:block;object-fit:cover;object-position:center;border-radius:12px;background:#f7f0e5;width:48px;height:48px;flex-shrink:0}.teacher-workspace{max-width:960px}.teacher-workspace .workspace-heading{margin:8px 0 28px}.teacher-identity{display:flex;align-items:center;gap:16px;min-width:0}.teacher-initial{display:grid;place-items:center;background:var(--mint);border-radius:50%;width:72px;height:72px;flex-shrink:0;font-size:30px;font-weight:700}.teacher-identity h1{font-size:26px}.teacher-identity p{font-size:14px;margin:6px 0 0;color:#586783}.teacher-workspace .notice-bell{border:1px solid var(--border);background:#fff}.teacher-workspace .workspace-tabs{padding:5px;background:#fff;border:1px solid var(--border);border-radius:20px;gap:4px}.teacher-workspace .workspace-tabs button{flex:1;font-size:14px;white-space:nowrap;padding:10px 14px}.teacher-workspace .request-card{border-radius:20px;padding:22px}.teacher-workspace .request-card h3{min-height:0;font-size:19px;margin:10px 0 12px}.teacher-workspace .request-card p{min-height:0;margin-bottom:20px;color:#586783}.teacher-workspace .empty{border-radius:20px}.teacher-empty{display:grid;justify-items:center;padding:28px;gap:18px}.teacher-empty img{width:210px;height:auto;border-radius:18px}.teacher-empty p{margin:0;font-size:14px}.teacher-stuck{display:flex;align-items:center;gap:14px}.teacher-stuck p{margin:6px 0 0}.teacher-stuck .student-companion{width:56px;height:56px}.notice-row.unread{background:#f9f6fe;border-color:#d8c9ef}.modal-card{border:1px solid var(--border)}.auth-form>p{font-size:14px}.welcome img,.waiting img,.empty-companions{background:#faf4ea}@media(max-width:600px){.app-shell{padding-bottom:88px}.page{padding-left:20px;padding-right:20px}.topbar{padding:0 20px}.navigation{bottom:0;left:0;transform:none;width:100%;max-width:none;border-radius:0;border:0;border-top:1px solid var(--border);padding:6px 16px max(6px,env(safe-area-inset-bottom));height:auto;gap:0}.navigation a{min-height:58px;border-radius:14px;font-size:14px}.navigation a span{font-size:12px}.teacher-workspace{padding-top:24px}.teacher-initial{width:64px;height:64px;font-size:28px}.teacher-identity{gap:12px}.teacher-identity h1{font-size:24px}.teacher-identity p{font-size:12px}.teacher-workspace .workspace-heading{gap:8px}.teacher-workspace .workspace-tabs{gap:0;flex-wrap:nowrap;border-radius:18px;margin-bottom:24px}.teacher-workspace .workspace-tabs button{padding:10px 6px;font-size:12px;min-width:0}.teacher-workspace .workspace-tabs button span{font-size:11px}.teacher-workspace .request-card{padding:18px}.teacher-workspace .section-title h2{font-size:19px}.teacher-workspace .notice-bell{width:48px;height:48px}.teacher-workspace .grid.two{gap:14px}.teacher-empty{padding:24px 18px}.teacher-empty img{width:180px}}.student-companion.portrait{border-radius:50%;object-fit:cover}.teacher-workspace{background:#fff;border-radius:28px;margin-top:12px}.teacher-availability{display:flex;justify-content:space-between;align-items:center;gap:16px;background:var(--mint);border-radius:18px;padding:8px 18px;margin-bottom:22px;font-weight:600;font-size:15px}.availability-switch{position:relative;width:56px;min-height:48px;padding:0;background:transparent;border:0;box-shadow:none!important}.availability-switch:before{content:"";position:absolute;width:52px;height:30px;border-radius:20px;background:#c6cbd7;left:2px;top:9px}.availability-switch[aria-checked=true]:before{background:var(--accent)}.availability-switch>span{position:absolute;width:24px;height:24px;top:12px;left:5px;border-radius:50%;background:#fff;box-shadow:0 1px 4px #17203320}.availability-switch[aria-checked=true]>span{left:27px}@media(max-width:600px){.teacher-workspace{border-radius:0;margin-top:0;min-height:calc(100dvh - 56px);padding-bottom:24px}.teacher-availability{margin-bottom:18px}}:root{--accent:#b29de3;--dark:#11182c;--mint:#e1f0eb;--background:#fff;--link:#9876d2}body{background:#fff}.app-shell{max-width:1400px}.primary{color:#fff;background:linear-gradient(120deg,#b29ce3,#b59ee4)}.primary:hover{background:#a48ad8}.reference-topbar{border:0;height:64px;background:#fff;justify-content:center;padding:0 20px}.reference-topbar .header-start{justify-content:center;flex:1}.reference-topbar .header-title{font-size:20px;font-weight:700;text-align:center}.header-spacer{position:absolute;left:20px;width:48px}.reference-topbar .icon-button{position:absolute;left:12px}.reference-topbar .account-menu{position:absolute;right:20px}.reference-topbar .account-menu svg{width:30px;height:30px}.reference-topbar .account-menu summary{display:grid;place-items:center}.navigation{border-radius:0;border:0;border-top:1px solid #e3e5eb;bottom:0;padding:8px 20px max(8px,env(safe-area-inset-bottom));box-shadow:none;max-width:none}.navigation a.router-link-exact-active{background:transparent;color:#a487dc}.navigation a{font-weight:500}.navigation a svg{width:28px;height:28px}.app-shell.classroom:has(.live-room)>.topbar{display:none}.app-shell.classroom:has(.live-room){max-width:none}.app-shell.classroom:has(.live-room) main{padding:0}.page.student-page{border-radius:0;margin-top:0}.student-home{min-height:calc(100dvh - 140px)}.student-home-companions{border-radius:0!important}.capture-flow~.navigation{display:none}.app-shell:has(.capture-flow)>.navigation,.app-shell:has(.student-teachers-flow)>.navigation{display:none}@media(max-width:600px){.navigation{width:100%;left:0;transform:none;height:78px}.reference-topbar{height:58px}.reference-topbar .header-title{font-size:20px}.app-shell{padding-bottom:78px}.app-shell:has(.reference-auth),.app-shell:has(.teacher-reference),.app-shell:has(.admin-reference){padding-bottom:0}}
