@keyframes slideIn{0%{opacity:0;transform:translate(100%)}60%{opacity:1;transform:translate(0)}80%{opacity:1;transform:translate(-15%)}to{opacity:1;transform:translate(0)}}.chatbot-button{cursor:pointer;z-index:100;transition:opacity .5s linear;animation:.6s ease-out forwards slideIn;display:flex;position:fixed;bottom:7em;right:2em}.chatbot-button__image{background-image:var(--tangerine-ai-bot);background-position:50%;background-repeat:no-repeat;background-size:cover;width:100px;height:100px}.chatbot-button:focus{outline:none}.chatbot-resize-handle{cursor:col-resize;z-index:1000;justify-content:center;align-items:center;width:8px;transition:background-color .2s;display:flex;position:absolute;top:0;bottom:0;left:0}.chatbot-resize-handle:hover,.chatbot-resize-handle:focus,.chatbot-resize-handle--active{background-color:rgba(0,0,0,.05)}.chatbot-resize-handle:hover .chatbot-resize-handle__grip,.chatbot-resize-handle:focus .chatbot-resize-handle__grip,.chatbot-resize-handle--active .chatbot-resize-handle__grip{opacity:1}.chatbot-resize-handle--active{background-color:var(--chatbot-gray-dark,#e0e0e0)}.chatbot-resize-handle--active .chatbot-resize-handle__grip span{background-color:#fff}.chatbot-resize-handle__grip{opacity:0;flex-direction:column;gap:2px;transition:opacity .2s;display:flex}.chatbot-resize-handle__grip span{background-color:#999;border-radius:50%;width:3px;height:3px;transition:background-color .2s;display:block}.chat-header-container{background-color:#fff}.chat-header{--chat-header-height:64px;--chat-header-padding:var(--ui-space-xs);--chat-header-divider-height:30px;height:var(--chat-header-height);padding:0 var(--chat-header-padding);border-bottom:var(--ui-stroke-1)solid var(--ui-color-neutral-grey-200);background-color:#fff;justify-content:space-between;align-items:center;display:flex;position:relative}.chat-header__left,.chat-header__right{align-items:center;gap:var(--ui-space-xs);flex:none;display:flex}.chat-header__left{justify-content:flex-start}.chat-header__center{flex:auto;justify-content:center;align-items:center;display:flex}.chat-header__right{justify-content:flex-end}.chat-header__close-button.chat-button--icon-only.chat-button--small{padding:var(--ui-space-xxxs)var(--ui-space-xs)}.chat-header__divider{width:var(--ui-stroke-1);height:var(--chat-header-divider-height);background-color:var(--ui-color-neutral-grey-200)}.status-modal__content{text-align:center;flex-direction:column;align-items:center;gap:16px;padding:24px;display:flex}.status-modal__icon{justify-content:center;align-items:center;width:48px;height:56px;display:flex}.status-modal__bot-icon{background-image:var(--tangerine-ai-bot-happy);background-position:50%;background-repeat:no-repeat;background-size:contain;width:48px;height:56px}.status-modal__bot-icon--error{background-image:var(--tangerine-ai-bot-sad)}.status-modal__text{flex-direction:column;gap:8px;display:flex}.status-modal__title{font-family:var(--font-first);margin:0;font-size:22px;font-weight:600;line-height:32px}.status-modal__title--success{color:#333}.status-modal__message{font-family:var(--font-second);color:#4e4e4e;margin:0;font-size:16px;font-weight:600;line-height:24px}.chat-image-modal-container{border-radius:var(--border-radius-01);background-color:var(--color-background-secondary);justify-content:center;align-items:center;width:100%;min-height:300px;padding:20px;display:flex;position:relative}.chat-image-modal-container .chat-image-modal__image{object-fit:contain;width:auto;max-width:100%;height:auto;max-height:calc(80vh - 200px);display:block}.chat-image-modal-container .chat-image-modal__download-button{background-color:var(--color-background-primary);border:1px solid var(--color-border);border-radius:var(--border-radius-01);cursor:pointer;opacity:.9;z-index:10;justify-content:center;align-items:center;padding:8px;transition:all .2s;display:flex;position:absolute;top:20px;right:20px}.chat-image-modal-container .chat-image-modal__download-button:hover{background-color:var(--color-background-hover);opacity:1;transform:scale(1.05)}.chat-image-modal-container .chat-image-modal__download-button:active{transform:scale(.95)}.chat-image-modal-container .chat-image-modal__download-button svg{color:var(--color-text-primary);width:20px;height:20px}@media (max-width:768px){.chat-image-modal-container{padding:10px}.chat-image-modal-container .chat-image-modal__image{max-height:calc(90vh - 150px)}.chat-image-modal-container .chat-image-modal__download-button{padding:6px;top:10px;right:10px}.chat-image-modal-container .chat-image-modal__download-button svg{width:18px;height:18px}}.diagram-mermaid{width:100%;height:100%;position:relative}.diagram-mermaid svg{max-width:100%;height:auto;margin:0 auto;display:block}.diagram-mermaid__download-btn{color:var(--ui-color-brand-fod-primary-a);position:absolute;top:8px;right:8px}.diagram-mermaid-error__container{flex-direction:row;gap:8px;display:flex}.diagram-mermaid-error__icon{margin-bottom:.5rem;font-size:2rem}.diagram-mermaid-error__message{color:#333;font-size:18px}.diagram-mermaid-error__details{font-size:14px}.diagram-mermaid-error__code{color:#333;max-width:280px;overflow:auto}.report-modal__content{flex-direction:column;gap:16px;display:flex}.report-modal__subtitle{font-family:var(--font-second);color:#4e4e4e;margin:0;font-size:14px;font-weight:400;line-height:1.5}.report-modal__options{flex-direction:column;gap:16px;display:flex}.report-modal__option{padding:0}.report-modal__comment{flex-direction:column;gap:8px;margin-top:8px;display:flex}.report-modal .dialog__actions .footer-buttons .button{color:#fff;background:var(--color-first)}.report-modal .dialog__actions .footer-buttons 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#e0e0e0;flex-shrink:0}.student-xray-drawer__header{border-bottom:1px solid #f2f2f2;justify-content:space-between;align-items:center;padding:8px;display:flex}.student-xray-drawer__student-info{align-items:center;gap:8px;display:flex}.student-xray-drawer__student-text{flex-direction:column;display:flex}.student-xray-drawer__student-name{font-family:var(--font-first-semi);color:#333;font-size:16px;font-weight:600;line-height:26px}.student-xray-drawer__student-class{font-family:var(--font-second);color:#767676;font-size:14px;font-weight:500;line-height:20px}.student-xray-drawer__close-btn{cursor:pointer;color:#767676;background:0 0;border:none;justify-content:center;align-items:center;width:24px;height:24px;padding:0;display:flex}.student-xray-drawer__close-btn:hover{color:#333}.student-xray-drawer__body{flex-direction:column;gap:24px;padding:8px 16px;display:flex;overflow-y:auto}.student-xray-drawer__stats{gap:8px;display:flex}.student-xray-drawer__stat-card{border:1px solid 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.icon--color-default{color:var(--ui-color-orange-500)}.tutor-usage-stat-card__icon--green{background-color:var(--ui-color-green-100)}.tutor-usage-stat-card__icon--green .icon--color-default{color:var(--ui-color-green-500)}.tutor-usage-stat-card__info-icon{cursor:help;opacity:.5;align-items:center;display:flex}.tutor-usage-stat-card__info-icon:hover{opacity:.8}.tutor-usage-stat-card__label{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-14);font-weight:var(--ui-font-weight-medium);line-height:var(--ui-line-height-20);color:var(--ui-color-text-secondary);margin:0;margin-top:var(--ui-space-xs)}.tutor-usage-stat-card__value{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-18);font-weight:var(--ui-font-weight-bold);line-height:var(--ui-line-height-26);color:var(--ui-color-text-default);margin:0}.tutor-usage-stat-card__subtitle{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-14);font-weight:var(--ui-font-weight-medium);line-height:var(--ui-line-height-20);color:var(--ui-color-text-tertiary);margin:0}.tutor-usage-stat-card__trend{align-items:center;gap:var(--ui-space-xxs);font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-12);font-weight:var(--ui-font-weight-semibold);line-height:var(--ui-line-height-18);margin:0;margin-top:var(--ui-space-xs);display:flex}.tutor-usage-stat-card__trend .icon__wrapper{margin-right:var(--ui-space-xs)}.tutor-usage-stat-card__trend .icon__wrapper svg{width:var(--ui-size-xxl);height:var(--ui-size-xxl)}.tutor-usage-stat-card__trend--positive,.tutor-usage-stat-card__trend--positive .icon--color-success,.tutor-usage-stat-card__trend--positive .tutor-usage-stat-card__trend-text{color:var(--ui-color-green-600)}.tutor-usage-stat-card__trend--negative,.tutor-usage-stat-card__trend--negative .icon--color-red,.tutor-usage-stat-card__trend--negative .tutor-usage-stat-card__trend-text{color:var(--ui-color-red-600)}.tutor-usage-stat-card__trend--neutral,.tutor-usage-stat-card__trend--neutral 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