.activity-combobox{width:100%;position:relative}.activity-combobox__input-wrapper{align-items:center;display:flex;position:relative}.activity-combobox__input{background-color:#fff;border:1px solid #ddd;border-radius:4px;width:100%;padding:8px 32px 8px 12px;font-size:14px;line-height:1.4;transition:border-color .2s,box-shadow .2s}.activity-combobox__input:focus{border-color:#007bff;outline:none;box-shadow:0 0 0 2px rgba(0,123,255,.25)}.activity-combobox__input::placeholder{color:#999}.activity-combobox__toggle{cursor:pointer;color:#666;background:0 0;border:none;justify-content:center;align-items:center;padding:4px;transition:color .2s;display:flex;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.activity-combobox__toggle:hover{color:#333}.activity-combobox__toggle:focus{color:#007bff;outline:none}.activity-combobox__arrow{font-size:12px;transition:transform .2s}.activity-combobox__arrow--up{transform:rotate(180deg)}.activity-combobox__dropdown{z-index:1000;background:#fff;border:1px solid #ddd;border-top:none;border-radius:0 0 4px 4px;max-height:200px;position:absolute;top:100%;left:0;right:0;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.1)}.activity-combobox__list{max-height:200px;margin:0;padding:0;list-style:none;overflow-y:auto}.activity-combobox__option{cursor:pointer;color:#333;border-bottom:1px solid #f0f0f0;padding:8px 12px;font-size:14px;line-height:1.4;transition:background-color .15s}.activity-combobox__option:last-child{border-bottom:none}.activity-combobox__option:hover,.activity-combobox__option--highlighted{background-color:#f8f9fa}.activity-combobox__option--highlighted{background-color:#e3f2fd}.activity-combobox__option[aria-selected=true]{color:#fff;background-color:#007bff}.activity-combobox__no-options{color:#999;text-align:center;padding:8px 12px;font-size:14px;font-style:italic}.activity-combobox--open .activity-combobox__input{border-bottom-color:#ddd;border-bottom-right-radius:0;border-bottom-left-radius:0}.activity-combobox__list{scrollbar-width:thin;scrollbar-color:#ccc transparent}.activity-combobox__list::-webkit-scrollbar{width:6px}.activity-combobox__list::-webkit-scrollbar-track{background:0 0}.activity-combobox__list::-webkit-scrollbar-thumb{background-color:#ccc;border-radius:3px}.activity-combobox__list::-webkit-scrollbar-thumb:hover{background-color:#999}@media (prefers-color-scheme:dark){.activity-combobox__input{color:#fff;background-color:#2d2d2d;border-color:#555}.activity-combobox__input:focus{border-color:#0d6efd}.activity-combobox__input::placeholder{color:#aaa}.activity-combobox__dropdown{background:#2d2d2d;border-color:#555}.activity-combobox__option{color:#fff;border-bottom-color:#444}.activity-combobox__option:hover,.activity-combobox__option--highlighted{background-color:#3d3d3d}.activity-combobox__option--highlighted{background-color:#1e3a5f}.activity-combobox__no-options,.activity-combobox__toggle{color:#aaa}.activity-combobox__toggle:hover{color:#fff}}.chat-input{background-color:#fff;flex-wrap:wrap;flex-shrink:0;align-items:flex-end;gap:8px;width:100%;padding:0;display:flex}.chat-input__field-wrapper{background-color:#fff;border:1px solid #e0e0e0;border-radius:24px;flex-direction:column;flex:1;gap:8px;min-height:40px;padding:3px 12px;display:flex;position:relative}.chat-input__field-wrapper:focus-within{border:1px solid var(--ui-color-brand-fod-primary-a)}.chat-input__text-row{align-items:flex-end;gap:8px;width:100%;display:flex}.chat-input__recording{transform-origin:100%;width:100%;animation:.22s forwards chat-input-grow-from-right;transform:scaleX(0)}.chat-input__error{color:#e04949;flex-basis:100%;width:100%;margin-bottom:6px;padding-left:4px;font-size:12px;line-height:1.3}.chat-input__field{font-size:16px;font-family:var(--font-second);color:#333;resize:none;background-color:transparent;border:none;outline:none;align-self:center;width:100%;min-height:24px;max-height:72px;margin:0;padding:0;line-height:1.5;overflow-y:auto}.chat-input__field::-webkit-scrollbar{display:none}.chat-input__field{scrollbar-width:none}.chat-input__field--rich{cursor:text;word-wrap:break-word;white-space:pre-wrap}.chat-input__field--rich:empty:not(:focus):before{content:attr(data-placeholder);color:#767676;pointer-events:none;position:absolute}.chat-input__field--rich:not(:focus):has(>br:only-child):before{content:attr(data-placeholder);color:#767676;pointer-events:none;position:absolute}.chat-input__field--rich br{content:"";display:block}.chat-input__formula{cursor:default;-webkit-user-select:none;user-select:none;margin:0 2px;display:inline-block}.chat-input__formula .katex{font-size:16px;line-height:16px;font-family:var(--font-second);display:inline-block}.chat-input__formula .katex-display{text-align:left;margin:0;display:inline-block}.chat-input__formula .katex .katex-html{color:#333}.chat-input__image-preview{background:#f2f2f2;border-radius:12px;align-items:center;width:-webkit-fit-content;width:fit-content;padding:4px;display:flex;position:relative}.chat-input__image-preview img{object-fit:cover;border-radius:8px;width:48px;height:48px}.chat-input__image-remove{cursor:pointer;color:#fff;background:#e0e0e0;border:none;border-radius:50%;justify-content:center;align-items:center;width:16px;height:16px;padding:0;transition:background-color .2s;display:flex;position:absolute;top:-4px;right:-4px}.chat-input__image-remove:hover{background:#101010}.chat-input__image-remove .icon{width:10px;height:10px}.chat-input__image-button{width:24px;top:-10px}.chat-input__image-button .icon{width:20px;height:20px}.chat-input__calculator-button{width:24px}.chat-input__calculator-button .icon{width:20px;height:20px}.chat-input__action-button{background:var(--ui-gradient-brand);cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;min-width:40px;height:40px;padding:8px 12px;transition:transform .2s;display:flex;position:relative;overflow:hidden}.chat-input__action-button:before{content:"";background:var(--ui-gradient-brand-reverse);border-radius:inherit;opacity:0;z-index:0;transition:opacity .4s;position:absolute;top:0;bottom:0;left:0;right:0}.chat-input__action-button:after{content:"";background:var(--ui-color-brand-fod-dark);border-radius:inherit;opacity:0;z-index:0;transition:opacity .2s;position:absolute;top:0;bottom:0;left:0;right:0}.chat-input__action-button:hover:before,.chat-input__action-button:active:after{opacity:1}.chat-input__action-button{color:#fff}.chat-input__action-button .icon{z-index:1;width:24px;height:24px;position:relative}.chat-input__action-button:disabled{cursor:not-allowed;background:0 0;transform:none}.chat-input__action-button:disabled:before{content:"";background:var(--ui-gradient-brand);opacity:.4;border-radius:inherit;z-index:0;position:absolute;top:0;bottom:0;left:0;right:0}.chat-input__action-button:disabled:hover{transform:none}.chat-input__action-button:disabled:hover:before{opacity:.4}.chat-input__action-button:disabled:active:after{opacity:0}.chat-input__action-button--recording{background:#e04949;animation:1.5s ease-in-out infinite pulse}.chat-input__action-button--recording:before,.chat-input__action-button--recording:after{display:none}.chat-input__action-button--recording:hover{background:#d22424}.chat-input__action-button--recording:active{background:#bc2020}.chat-input__action-button--recording{color:#fff}.chat-input__field::placeholder{color:#767676}.chat-input--disabled .chat-input__field-wrapper{cursor:not-allowed;background-color:#f9f9f9;border-color:#f2f2f2}.chat-input--disabled .chat-input__field{color:#767676;cursor:not-allowed}.chat-input--disabled .chat-input__field::placeholder{color:#767676}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.05)}}@keyframes chat-input-grow-from-right{0%{opacity:0;transform:scaleX(0)}to{opacity:1;transform:scaleX(1)}}.chat-d3-card{cursor:pointer;background:#fff;border:1px solid #e0e0e0;border-radius:8px;margin:8px 0;transition:all .2s}.chat-d3-card:hover{transform:translateY(-1px);box-shadow:0 4px 8px rgba(0,0,0,.1)}.chat-d3-card__header{padding:8px}.chat-d3-card__title{font-family:var(--font-second);color:#4e4e4e;flex:1;font-size:18px;font-weight:700}.chat-d3-card__footer{background-color:#f9f9f9;border-top:1px solid #e0e0e0;border-radius:0 0 8px 8px;margin-top:0;padding:8px}.chat-d3-card__footer__content{justify-content:space-between;align-items:center;gap:8px;display:flex}.chat-d3-card__footer__title{color:#333;align-items:center;gap:4px;font-size:16px;font-weight:600;display:flex}.chat-d3-card__footer__title .icon{color:#333}.chat-d3-card__footer__button{color:var(--ui-color-brand-fod-primary-a);cursor:pointer;background:0 0;border:none;padding:0;font-size:14px;text-decoration:underline}.chat-d3-card__footer__button:hover{color:var(--ui-color-brand-fod-dark)}.flagged-message-bubble-tags{flex-direction:column;align-items:flex-start;gap:8px;margin-top:8px;display:flex}.flagged-message-bubble-tags__tag{font-family:var(--font-second);white-space:nowrap;color:#333;background-color:#ffeaed;border-radius:16px;align-items:center;height:28px;padding:4px 8px;font-size:14px;font-weight:500;line-height:normal;display:flex}.chatbot{border-left:var(--ui-stroke-1)solid var(--ui-color-brand-fod-primary-b,var(--ui-color-brand-fod-primary-a));background-color:#fff;flex-direction:column;width:100%;height:100%;display:flex;position:relative;overflow:hidden}.chatbot__header{background-color:#fff;border-bottom:1px solid #e0e0e0;flex-shrink:0;justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.chatbot__header-left{position:relative}.chatbot__header-wrapper{flex-shrink:0;position:relative}.chatbot__history-button{color:#4e4e4e;cursor:pointer;background:0 0;border:none;border-radius:16px;align-items:center;gap:6px;padding:6px 12px;font-size:16px;transition:background-color .2s;display:flex}.chatbot__history-button:hover,.chatbot__history-button.active{color:#333;background-color:#f2f2f2}.chatbot__close-button{cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:8px;transition:background-color .2s;display:flex}.chatbot__close-button:hover{background-color:#f2f2f2}.chatbot__content{flex-direction:column;flex:1;height:100%;min-height:0;display:flex;position:relative;overflow:hidden}.chatbot__drag-overlay{border:2px dashed var(--ui-color-brand-fod-primary-a);z-index:20;pointer-events:none;background-color:rgba(51,51,51,.25);position:absolute;top:0;bottom:0;left:0;right:0}.chatbot__drag-overlay--invalid{background-color:rgba(224,73,73,.05);border-color:#ba1f33}.chatbot__drag-overlay-text{font-family:var(--font-second-bold);color:#fff;pointer-events:none;white-space:nowrap;text-align:center;background-color:#333;border-radius:8px;padding:8px 16px;font-size:14px;position:absolute;transform:translate(-50%,24px);box-shadow:0 2px 8px rgba(51,51,51,.15)}.chatbot__drag-overlay-text--invalid{color:#333;background-color:#fff;border:1px solid #e04949;align-items:center;gap:8px;padding:4px 8px;display:flex;box-shadow:0 5px 20px rgba(169,155,144,.2)}.chatbot__input-container{z-index:10;background-color:#fff;border-top:1px solid #e0e0e0;flex-direction:column;flex-shrink:0;gap:8px;width:100%;min-height:72px;margin-top:auto;padding:16px 8px;display:flex;position:-webkit-sticky;position:sticky;bottom:0}.chatbot__disclaimer{font-family:var(--font-second);color:#767676;margin:0;padding-left:4px;font-size:12px;line-height:18px}.exit-practice-dialog{--exit-practice-dialog-mascot-width:5rem;--exit-practice-dialog-mascot-height:5.875rem}.exit-practice-dialog .footer-buttons .button--variant-secondary-ghost{--button-color:var(--ui-color-brand-fod-primary-a)}.exit-practice-dialog .MuiDialogContent-root{border-top:1px solid var(--ui-color-neutral-grey-200);border-bottom:1px solid var(--ui-color-neutral-grey-200)}.exit-practice-dialog__content{align-items:center;gap:var(--ui-space-xs);display:flex}.exit-practice-dialog__mascot{width:var(--exit-practice-dialog-mascot-width);height:var(--exit-practice-dialog-mascot-height);background-image:var(--tangerine-ai-bot-look-up);background-position:50%;background-repeat:no-repeat;background-size:contain;flex-shrink:0}.exit-practice-dialog__body{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-16);font-weight:var(--ui-font-weight-medium);line-height:var(--ui-line-height-24);color:var(--ui-color-neutral-grey-900);flex:1;min-width:0;margin:0}.tutor-ai-tabs{align-items:center;gap:8px;display:flex}.tutor-ai-tabs__tab{font-size:14px;font-family:var(--font-second);color:#333;cursor:pointer;border-radius:var(--border-radius-01);padding:8px;line-height:20px;transition:color .2s;position:relative}.tutor-ai-tabs__tab--active{font-family:var(--font-second-bold);color:#333;cursor:default;background-color:#f9f9f9;font-size:14px;line-height:20px}.teacher-analytics-view__loading{flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:400px;display:flex}.teacher-analytics-view__loading p{color:#767676;font-size:14px}.teacher-analytics-view__error{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:24px;min-height:400px;display:flex}.teacher-analytics-view__error p{color:#dc3545;max-width:500px;font-size:14px}.teacher-analytics-view__header-container{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.teacher-analytics-view__header-container .teacher-analytics-view__class-selector{min-width:200px;max-width:300px;margin-left:auto}.teacher-analytics-view__subject-selector{min-width:200px;max-width:300px}.teacher-analytics-view__units-grid{flex-direction:column;gap:16px;width:100%;display:flex}.teacher-analytics-view__sections-container{flex-direction:column;gap:16px;display:flex}.teacher-analytics-view__section-separator{border-bottom:1px solid #eee4dc;margin:16px 0}.teacher-analytics-view__recommendations{gap:var(--spacing-lg);flex-direction:column;width:100%;display:flex}.teacher-analytics-view__section{display:block}.teacher-analytics-view__section-title{color:#333;font-size:22px;font-weight:700;font-family:var(--font-first);margin:0 0 24px}.teacher-analytics-view__legend{justify-content:flex-end;gap:24px;margin-top:16px;display:flex}.teacher-analytics-view__legend-item{align-items:center;gap:8px;display:flex}.teacher-analytics-view__legend-color{border-radius:4px;flex-shrink:0;width:16px;height:16px}.teacher-analytics-view__legend-color--mastered{background-color:#0095a2}.teacher-analytics-view__legend-color--in-progress{background-color:#00b4c5}.teacher-analytics-view__legend-color--not-started{background-color:#d4fbff}.teacher-analytics-view__legend-text{font-size:14px;font-weight:500;font-family:var(--font-second);color:#4e4e4e;line-height:1}.radar-type-tag{font-family:var(--font-second);white-space:nowrap;color:#333;background-color:#f2f2f2;border-radius:16px;flex-shrink:0;justify-content:center;align-items:center;gap:4px;height:28px;padding:4px 8px;font-size:14px;font-weight:500;line-height:normal;display:flex}.radar-type-tag--inappropriate-use{color:#97033a;background-color:#ffeaed}.radar-type-tag--learning-block,.radar-type-tag--group-learning-alert{color:#996008;background-color:#fffad6}.vertical-kc-timeline{--timeline-marker-width:16px;--timeline-dot-size:12px;--timeline-line-width:1px;background-color:#f9f9f9;border-radius:8px;flex-direction:column;gap:16px;margin:0;padding:8px;list-style:none;display:flex}.vertical-kc-timeline__item{grid-template-columns:auto var(--timeline-marker-width)1fr;min-height:var(--timeline-dot-size);align-items:center;gap:8px;display:grid;position:relative}.vertical-kc-timeline__date{text-align:right;font-family:var(--font-second);color:#4e4e4e;flex-direction:column;align-items:flex-end;min-width:111px;font-size:12px;line-height:18px;display:flex}.vertical-kc-timeline__item--last .vertical-kc-timeline__date{font-family:var(--font-second-bold)}.vertical-kc-timeline__marker{width:var(--timeline-marker-width);justify-content:center;align-self:stretch;align-items:center;height:100%;display:flex;position:relative}.vertical-kc-timeline__marker:after{content:"";width:var(--timeline-line-width);background-color:#8e0d8e;height:50%;position:absolute;top:50%;left:50%;transform:translate(-50%)}.vertical-kc-timeline__item:not(.vertical-kc-timeline__item--last) .vertical-kc-timeline__marker:after{height:calc(100% + 16px)}.vertical-kc-timeline__item:first-child .vertical-kc-timeline__marker:before{content:"";width:var(--timeline-line-width);background-color:#8e0d8e;height:50%;position:absolute;top:0;left:50%;transform:translate(-50%)}.vertical-kc-timeline__dot{width:var(--timeline-dot-size);height:var(--timeline-dot-size);z-index:1;background-color:#e875e6;border-radius:50%}.vertical-kc-timeline__item--last .vertical-kc-timeline__dot{background-color:#b00fb0;box-shadow:0 0 0 3px rgba(209,22,218,.15)}.vertical-kc-timeline__status-label{font-family:var(--font-second);color:#333;font-size:16px;line-height:24px}.vertical-kc-timeline__item--last .vertical-kc-timeline__status-label{font-family:var(--font-second-bold)}.teacher-tool-card{cursor:pointer;font-family:var(--font-second);background:#fff;border:1px solid #e0e0e0;border-radius:8px;align-items:flex-start;gap:8px;width:100%;padding:8px;display:flex;position:relative}.teacher-tool-card__icon{flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;display:flex}.teacher-tool-card__content{flex-direction:column;flex:1;gap:8px;min-width:0;display:flex}.teacher-tool-card__title{color:#333;white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:16px;font-weight:700;line-height:20px;overflow:hidden}.teacher-tool-card__description{color:#767676;-webkit-line-clamp:2;line-clamp:2;text-overflow:ellipsis;white-space:normal;-webkit-box-orient:vertical;min-height:36px;margin:0;font-size:14px;font-weight:500;line-height:18px;display:-webkit-box;overflow:hidden}.teacher-tool-card:hover:not(.teacher-tool-card--disabled):not(.teacher-tool-card--pressed):not(.teacher-tool-card--active){outline:1px solid #f2f2f2;box-shadow:0 5px 12px rgba(16,16,16,.05)}.teacher-tool-card--pressed{border-color:#ababab}.teacher-tool-card--active{border-color:var(--ui-color-brand-fod-primary-a);background:#fff}.teacher-tool-card--active:hover{border-color:var(--ui-color-brand-fod-primary-a);box-shadow:0 5px 12px rgba(16,16,16,.05)}.teacher-tool-card--disabled{cursor:not-allowed;background:#f9f9f9;border-color:#f2f2f2}.teacher-tool-card--disabled .teacher-tool-card__title,.teacher-tool-card--disabled .teacher-tool-card__description{color:#828282}.teacher-tool-card--disabled .teacher-tool-card__icon{filter:grayscale()}.teacher-tool-card--disabled:hover{box-shadow:none;border-color:#f2f2f2}@media (max-width:768px){.teacher-tool-card{padding:12px}.teacher-tool-card__title{font-size:14px;line-height:18px}.teacher-tool-card__description{min-height:32px;font-size:12px;line-height:16px}}