.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-header-container{background-color:#fff;border-bottom:1px solid #f2f2f2}.chat-header{background-color:#fff;justify-content:space-between;align-items:center;padding:14px 16px;display:flex;position:relative}.chat-header__left,.chat-header__right{flex:none;align-items:center;gap:8px;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__button{cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:8px;transition:background-color .2s;display:flex}.chat-header__button:hover{cursor:pointer}.chat-header__badge{background-color:var(--color-tangerine-ai,#bc3ebc);color:#fff;border-radius:10px;justify-content:center;align-items:center;min-width:20px;height:20px;margin-left:8px;padding:0 6px;font-size:12px;font-weight:700;display:flex}.chat-header__divider{background-color:#f2f2f2;width:1px;height:30px;margin:0 8px}.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}}.teacher-layout-wrapper{height:100vh;display:flex;overflow:hidden}.teacher-layout-wrapper__sidebar{background:#faf7f5;flex-direction:column;flex-shrink:0;width:265px;height:100vh;transition:width .3s;display:flex;overflow-x:hidden;overflow-y:auto}.teacher-layout-wrapper__sidebar-header{justify-content:space-between;align-items:center;padding:24px 24px 0;display:flex}.teacher-layout-wrapper__collapse-btn{cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:24px;transition:background-color .2s;display:flex}.teacher-layout-wrapper__collapse-btn:hover{background-color:rgba(0,0,0,.05)}.teacher-layout-wrapper__collapse-btn .icon{color:#767676}.teacher-layout-wrapper__title-container{visibility:visible;transition:opacity .3s;overflow:hidden}.teacher-layout-wrapper__title{color:#4e4e4e;white-space:nowrap;font-size:24px;font-weight:600;font-family:var(--font-first);margin:0;padding:24px 24px 0}.teacher-layout-wrapper__navigation{flex:1;padding:24px 0 0 24px;transition:padding .3s}.teacher-layout-wrapper__nav-list{font-family:var(--font-first);flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.teacher-layout-wrapper__nav-item{cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px 0 0 8px;align-items:center;width:100%;padding:8px 15px;transition:background-color .2s;display:flex;overflow:hidden}.teacher-layout-wrapper__nav-item .icon{flex-shrink:0}.teacher-layout-wrapper__nav-item .icon__wrapper svg path{fill:#767676;transition:fill .2s}.teacher-layout-wrapper__nav-item:hover{background:rgba(255,255,255,.5)}.teacher-layout-wrapper__nav-item:hover .icon__wrapper svg path{fill:var(--color-tangerine-ai-dark,#741571)}.teacher-layout-wrapper__nav-item:hover .teacher-layout-wrapper__nav-text{color:var(--color-tangerine-ai-dark,#741571)}.teacher-layout-wrapper__nav-item--active{background:#fff}.teacher-layout-wrapper__nav-item--active .teacher-layout-wrapper__nav-text{color:var(--color-tangerine-ai,#bc3ebc);font-family:var(--font-first)}.teacher-layout-wrapper__nav-item--active .icon__wrapper svg path{fill:var(--color-tangerine-ai,#bc3ebc)}.teacher-layout-wrapper__nav-item--active:hover{background:#fff}.teacher-layout-wrapper__nav-text{color:#767676;white-space:nowrap;opacity:1;width:auto;margin-left:12px;font-family:Dosis Bold,sans-serif;font-size:16px;font-weight:600;line-height:24px;transition:opacity .2s,width .3s}.teacher-layout-wrapper__dev-toggle{margin-top:auto;padding:16px 20px}.teacher-layout-wrapper__dev-toggle-hint{color:#767676;margin-top:4px;font-size:11px;line-height:1.3}.teacher-layout-wrapper__main{background:#fff;flex:1;min-width:0;padding-top:36px;overflow:auto}.teacher-layout-wrapper__main--default-padding{padding-left:72px;padding-right:72px}.teacher-layout-wrapper__main--left-only-padding{padding-left:72px;padding-right:0}.teacher-layout-wrapper__main--none-padding{padding-left:0;padding-right:0}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__sidebar{width:80px}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__sidebar-header{justify-content:center;padding-left:0;padding-right:0}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__sidebar-header .back-arrow{display:none}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__title-container{opacity:0;visibility:hidden;transition:opacity .3s,visibility 0s linear .3s}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__navigation{align-items:center;padding:24px 0 0 24px}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__nav-item{justify-content:center;padding:8px}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__nav-text{opacity:0;width:0;margin-left:0;transition:opacity .2s ease-out,width .3s,margin-left .3s}.teacher-layout-wrapper--show-back-collapsed .teacher-layout-wrapper__sidebar-header .back-arrow{display:flex}.teacher-layout-wrapper__mobile-menu-button,.teacher-layout-wrapper__mobile-menu-backdrop{display:none}.topic-ranking-section{background-color:#fff;flex-direction:column;gap:16px;padding:16px 24px;display:flex;overflow:hidden}.topic-ranking-section__header{justify-content:space-between;align-items:flex-start;display:flex}.topic-ranking-section__header-titles{flex-direction:column;gap:8px;display:flex}.topic-ranking-section__title{font-family:var(--font-first);color:#333;margin:0;font-size:22px;font-weight:600;line-height:32px}.topic-ranking-section__subtitle{font-family:var(--font-second);color:#4e4e4e;margin:0;font-size:16px;font-weight:400;line-height:24px}.topic-ranking-section__header-actions{flex-shrink:0;align-items:center;display:flex}.topic-ranking-section__view-toggle{background-color:#f2f2f2;border-radius:4px;align-items:center;gap:4px;padding:8px;display:flex}.topic-ranking-section__view-toggle-btn{cursor:pointer;color:#ababab;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:2px;transition:color .2s,background-color .2s;display:flex}.topic-ranking-section__view-toggle-btn .icon--color-default.icon--lib-skin path{fill:#4e4e4e}.topic-ranking-section__view-toggle-btn--active{color:#333;background-color:#fff}.topic-ranking-section__view-toggle-btn--active .icon--color-default.icon--lib-skin path{fill:var(--color-tangerine-ai,#bc3ebc)}.topic-ranking-section__view-toggle-btn--active:hover:not(:disabled) .icon--color-default.icon--lib-skin path{fill:var(--color-tangerine-ai-dark,#741571)}.topic-ranking-section__view-toggle-btn:disabled{opacity:.5;cursor:not-allowed}.topic-ranking-section__filters-row{justify-content:space-between;align-items:flex-start;gap:24px;display:flex}.topic-ranking-section__description{font-family:var(--font-second);color:#4e4e4e;flex:1;min-width:0;margin:0;font-size:16px;font-weight:400;line-height:20px}.topic-ranking-section__filters{flex-shrink:0;gap:8px;display:flex}.topic-ranking-section__filter{flex-direction:column;gap:2px;min-width:242px;display:flex}.topic-ranking-section__filter-label{font-family:var(--font-second);color:#4e4e4e;font-size:16px;font-weight:400;line-height:24px}.topic-ranking-section__list{flex-direction:column;display:flex}.topic-ranking-section__load-more-btn{font-family:var(--font-first);color:var(--color-first);border:1px solid var(--color-first);cursor:pointer;white-space:nowrap;border-radius:8px;justify-content:center;align-self:center;align-items:center;gap:8px;padding:8px 12px;font-size:18px;font-weight:700;line-height:22px;transition:background-color .2s;display:flex}.topic-ranking-section__load-more-btn:hover{background-color:var(--color-first-alpha)}.topic-ranking-section__load-more-btn .icon--color-default.icon--lib-skin path{fill:var(--color-first)}.topic-ranking-section__load-more-btn #loading__svg{width:22px;height:22px}.topic-ranking-section__loading{justify-content:center;align-items:center;min-height:200px;display:flex}.topic-ranking-section__empty{font-family:var(--font-second);color:#767676;text-align:center;margin:0;padding:24px 0;font-size:14px}.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}.severity-indicator{align-items:flex-end;gap:2px;height:12px;display:flex}.severity-indicator__bar{border-radius:var(--border-radius-01);width:4px}.severity-indicator--high .severity-indicator__bar{background-color:#e04949}.severity-indicator--medium .severity-indicator__bar{background-color:#d18436}.severity-indicator--low .severity-indicator__bar{background-color:#28a773}.severity-indicator__bar:first-child{height:4px}.severity-indicator__bar:nth-child(2){height:8px}.severity-indicator__bar:nth-child(3){height:12px}.severity-indicator--high .severity-indicator__bar--active{background-color:#e04949}.severity-indicator--medium .severity-indicator__bar--active{background-color:#bb752e}.severity-indicator--low .severity-indicator__bar--active{background-color:#135f3e}.select-learning-objectives__button{display:flex}.select-learning-objectives__button .button{border-radius:0 4px 4px 0;width:100%;height:48px}.select-learning-objectives__button input{border-top-right-radius:0;border-bottom-right-radius:0}.select-learning-objectives__input-container{border-radius:var(--border-radius-01);cursor:pointer;background-color:#fff;border:1px solid #e0e0e0;align-items:flex-start;min-height:48px;padding:8px;transition:border-color .2s;display:flex}.select-learning-objectives__input-container:hover{border-color:var(--color-first)}.select-learning-objectives__input-container:focus{border-color:var(--color-first);outline:none}.select-learning-objectives__tags{flex-wrap:wrap;flex:1;align-content:center;align-items:center;gap:8px;min-height:30px;display:flex}.select-learning-objectives__tags .tag{cursor:pointer;background-color:#f9f9f9;border:1px solid #f2f2f2;border-radius:16px;padding:4px 8px}.select-learning-objectives__tags .tag__icon{cursor:pointer}.select-learning-objectives__placeholder{color:#ababab;font-family:var(--font-second);font-size:14px}.select-learning-objectives__chevron{flex-shrink:0;justify-content:center;align-items:center;width:24px;min-height:30px;display:flex}.ai-quiz-section{padding-top:12px;position:relative}.ai-quiz-section .input-text__label,.ai-quiz-section .textarea__label{margin-bottom:8px}.ai-quiz-section__label{z-index:2;margin-bottom:-12px;padding-left:8px;position:relative}.ai-quiz-section__labeled-field{flex-direction:column;gap:8px;display:flex}.ai-quiz-section__labeled-field sup{color:#e04949}.ai-quiz-section__hint{font-family:var(--font-second);color:#767676;font-size:14px;font-weight:500;line-height:20px}.ai-quiz-section__badge{color:#333;font-family:var(--font-first);background-color:#f2f2f2;border-radius:4px;align-items:center;gap:4px;padding:4px 8px;font-size:14px;font-weight:700;display:inline-flex}.ai-quiz-section__description{font-family:var(--font-second);color:#333;margin-bottom:16px;font-size:18px;line-height:27px}.ai-quiz-section__content{z-index:1;background-color:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:16px;position:relative}.ai-quiz-section__fields{flex-direction:column;gap:24px;display:flex}.ai-quiz-section__row{gap:24px;display:flex}@media screen and (max-width:768px){.ai-quiz-section__row{flex-direction:column}}.ai-quiz-section__field{flex-direction:column;gap:8px;display:flex}.ai-quiz-section__field--half{flex:1}.activity-type-selector{flex-direction:column;gap:8px;display:flex}.activity-type-selector__label sup{color:#e04949}.activity-type-selector__hint{font-family:var(--font-second);color:#767676;font-size:14px;font-weight:500;line-height:20px}