@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}.flagged-message-bubble-tags{margin:0;margin-top:var(--ui-space-xs);align-items:flex-start;gap:var(--ui-space-xs);flex-direction:column;padding:0;list-style:none;display:flex}.chat-badge{border-radius:16px;align-items:center;gap:4px;padding:4px 8px;font-size:14px;display:inline-flex}.chat-badge__emoji{font-size:inherit}.chat-badge__text{font-family:var(--font-second);color:transparent;-webkit-background-clip:text;background-clip:text;font-weight:600;line-height:26px}.chat-badge--practice{background-color:#d6f6ff}.chat-badge--practice .chat-badge__text{color:#0a3366}.chat-badge--study{background-color:#ffe8ff}.chat-badge--study .chat-badge__text{color:#6b0a6b}.chat-badge--revision{background-color:#fff3e0}.chat-badge--revision .chat-badge__text{color:#e65100}.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{color:#4e4e4e}.topic-ranking-section__view-toggle-btn--active{color:#333;background-color:#fff}.topic-ranking-section__view-toggle-btn--active .icon--color-default{color:var(--ui-color-brand-fod-primary-a)}.topic-ranking-section__view-toggle-btn--active:hover:not(:disabled) .icon--color-default{color:var(--ui-color-brand-fod-dark)}.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{color: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}.lesson-recommendation-item{align-items:center;gap:16px;padding:0;display:flex}.lesson-recommendation-item__alert{background-color:#fff0f0;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.lesson-recommendation-item__content{flex:1}.lesson-recommendation-item__title{color:#333;font-family:Lato Bold,sans-serif;font-size:16px;font-weight:600;line-height:24px}.unit-recommendations-card{width:100%;margin-bottom:16px;display:flex;overflow:hidden}.unit-recommendations-card__indicator{background-color:#00b4c5;border-radius:8px 0 0 8px;flex-shrink:0;width:8px}.unit-recommendations-card__content{background-color:#fff;border:1px solid #d3e9ff;border-left:none;border-radius:0 8px 8px 0;flex-direction:column;flex:1;padding:8px 8px 24px;display:flex}.unit-recommendations-card__header{background-color:rgba(0,180,197,.05);border-radius:8px 8px 0 0;align-items:center;min-height:44px;margin-bottom:24px;padding:8px 10px;display:flex}.unit-recommendations-card__title,.unit-recommendations-card__title .text-html *{font-size:18px;font-weight:600;font-family:var(--font-first);color:#333;margin:0;line-height:28px;display:flex}.unit-recommendations-card__lessons{flex-direction:column;gap:8px;padding:0 16px;display:flex}.unit-recommendations-card__no-recommendations{font-size:16px;font-weight:500;font-family:var(--font-second);color:#828282;margin:0;line-height:24px}.alert-resolved-status{gap:var(--ui-space-xs);flex-direction:column;display:flex}.alert-resolved-status__info{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-14);line-height:var(--ui-line-height-20);color:var(--ui-color-text-default);text-align:center;margin:0}.alert-resolved-status__badge{justify-content:center;align-items:center;gap:var(--ui-space-sm);border-radius:var(--ui-radius-xl);font-family:var(--ui-font-family-heading);font-size:var(--ui-font-size-18);font-weight:var(--ui-font-weight-bold);line-height:var(--ui-line-height-28);color:var(--ui-color-text-inverse);background-image:var(--ui-gradient-brand);opacity:.4;padding:var(--ui-space-xs)0;display:flex}.alert-resolved-status__badge .icon__wrapper svg{width:var(--ui-icon-size-md);height:var(--ui-icon-size-md);fill:var(--ui-color-icon-inverse)}.text-input-or-lesson-selector{width:100%;position:relative}.text-input-or-lesson-selector__label{margin-bottom:8px;display:block}.text-input-or-lesson-selector__label sup{color:var(--ui-color-text-error)}.text-input-or-lesson-selector__content{width:100%}.text-input-or-lesson-selector__lessons-list{flex-direction:column;gap:8px;display:flex}.text-input-or-lesson-selector__add-more-container{direction:row;justify-content:space-between;display:flex}.text-input-or-lesson-selector__add-more{align-self:flex-start;padding:4px 0;font-size:14px}.text-input-or-lesson-selector__error-message{color:var(--ui-color-text-error);font-family:var(--font-second);margin-top:8px;font-size:16px;font-style:normal;font-weight:500;line-height:24px}.text-input-mode{border-radius:8px;width:100%}.text-input-mode__textarea-wrapper{border:1px solid var(--Grays-Gray-05,#e0e0e0);border-bottom:none;border-top-left-radius:8px;border-top-right-radius:8px;width:100%;position:relative;overflow:hidden}.text-input-mode__textarea-wrapper textarea{border-bottom-right-radius:0;border-bottom-left-radius:0}.text-input-mode__textarea-wrapper .textarea{width:100%}.text-input-mode__textarea-wrapper .textarea__input{resize:vertical;border:none;border-radius:0;min-height:58px;max-height:150px;overflow-y:auto}.text-input-mode__footer{border:1px solid var(--Grays-Gray-05,#e0e0e0);background:var(--Grays-Gray-07,#f9f9f9);border-radius:0 0 8px 8px;align-items:center;gap:36px;padding-right:8px;display:flex}.text-input-mode__choose-button{padding:0 12px;font-size:14px;text-decoration:none;transition:opacity .2s}.text-input-mode__counter{color:#4e4e4e;white-space:nowrap;font-size:14px}.text-input-mode--error .text-input-mode__textarea-wrapper{border-color:var(--ui-color-stroke-form-error)}.text-input-mode--error .text-input-mode__footer{background:var(--ui-color-notification-error-bg);border-color:var(--ui-color-stroke-form-error)}.text-input-mode--error .text-input-mode__choose-button{opacity:.4;pointer-events:none}.text-input-mode--error .text-input-mode__counter{color:var(--ui-color-text-error)}.lesson-selected-card{border:1px solid var(--color-border);background-color:var(--color-background-light);border-radius:8px;width:100%;padding:12px;transition:all .2s}.lesson-selected-card__content{justify-content:space-between;align-items:center;gap:12px;display:flex}.lesson-selected-card__content-wrapper{align-items:center;gap:12px;display:flex}.lesson-selected-card__icon-wrapper{background-color:var(--color-first);color:#fff;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;padding:8px;display:flex}.lesson-selected-card__icon-wrapper svg{width:32px;height:32px}.lesson-selected-card__icon{color:#fff;width:24px;height:24px}.lesson-selected-card__info{flex:1;min-width:0}.lesson-selected-card__title{color:#333;font-size:16px;font-weight:500;line-height:24px;font-family:var(--font-second);text-overflow:ellipsis;white-space:nowrap;margin:0 0 2px;overflow:hidden}.lesson-selected-card__context{color:#767676;text-overflow:ellipsis;white-space:nowrap;margin:0 0 2px;font-size:12px;overflow:hidden}.lesson-selected-card__meta{color:#767676;margin:0;font-size:14px;font-weight:500;line-height:24px}.lesson-selected-card__remove{cursor:pointer;color:var(--color-text-secondary);background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;padding:0;transition:all .2s;display:flex}.lesson-selected-card__remove:hover{background-color:var(--color-danger-light);color:var(--color-danger)}.lesson-selected-card__remove .icon{width:16px;height:16px}.lesson-selected-card__error{background:#f9f9f9;border:1px solid #e0e0e0}.lesson-selected-card__error .lesson-selected-card__title{color:#767676}.lesson-selected-card__error-message{color:var(--ui-color-text-error);font-family:var(--font-second);margin-top:8px;font-size:16px;font-style:normal;font-weight:500;line-height:24px}.lesson-selection-dialog .dialog__content{max-height:400px}.lesson-selection-dialog__section{margin-bottom:20px}.lesson-selection-dialog__section:last-child{margin-bottom:0}.lesson-selection-dialog__section-label{font-family:var(--font-second);color:#767676;text-transform:uppercase;margin-bottom:8px;font-size:14px;font-weight:700;line-height:normal;display:block}.lesson-selection-dialog__search{border:1px solid var(--Grays-Gray-05,#e0e0e0);background:#f9f9f9;border-radius:8px 8px 0 0;padding:12px 16px;position:relative}.lesson-selection-dialog__search-input{border:1px solid var(--Grays-Gray-05,#e0e0e0);font-family:var(--font-second);color:#333;background:#fff;border-radius:8px;outline:none;width:100%;padding:10px 40px 10px 12px;font-size:14px;transition:border-color .2s}.lesson-selection-dialog__search-input::placeholder{color:#ababab}.lesson-selection-dialog__search-input:focus{border-color:var(--color-first)}.lesson-selection-dialog__search-icon{color:#ababab;cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:4px;display:flex;position:absolute;top:50%;right:24px;transform:translateY(-50%)}.lesson-selection-dialog__search-icon svg{width:18px;height:18px}.lesson-selection-dialog__tree{border-left:1px solid var(--Grays-Gray-05,#e0e0e0);border-right:1px solid var(--Grays-Gray-05,#e0e0e0);max-height:320px;overflow-y:auto}.lesson-selection-dialog__loading{color:#767676;justify-content:center;align-items:center;min-height:60px;padding:20px;font-size:14px;display:flex}.lesson-selection-dialog__empty{text-align:center;color:#767676;padding:20px;font-size:14px}.lesson-selection-dialog__unit{border-bottom:1px solid var(--Grays-Gray-05,#e0e0e0)}.lesson-selection-dialog__unit:last-child{border-bottom:none}.lesson-selection-dialog__unit-row{cursor:pointer;align-items:center;gap:12px;padding:12px 16px;transition:background-color .15s;display:flex}.lesson-selection-dialog__unit-row:hover{background-color:rgba(var(--color-first),.04)}.lesson-selection-dialog__unit-info{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.lesson-selection-dialog__unit-name{font-family:var(--font-second);color:#4e4e4e;text-overflow:ellipsis;white-space:nowrap;font-size:16px;font-weight:700;line-height:24px;overflow:hidden}.lesson-selection-dialog__unit-counter{font-family:var(--font-second);color:#767676;text-transform:uppercase;letter-spacing:.3px;font-size:14px;font-weight:700;line-height:normal}.lesson-selection-dialog__unit-chevron{color:#767676;flex-shrink:0}.lesson-selection-dialog__unit-chevron svg{width:16px;height:16px}.lesson-selection-dialog__lessons{padding:0 16px 8px}.lesson-selection-dialog__lesson-row{cursor:pointer;border-radius:6px;align-items:center;gap:12px;padding:8px 12px;transition:background-color .15s;display:flex}.lesson-selection-dialog__lesson-row:hover{background-color:rgba(var(--color-first),.04)}.lesson-selection-dialog__lesson-row--selected{background-color:rgba(var(--color-first),.08)}.lesson-selection-dialog__lesson-name{font-family:var(--font-second);color:#333;text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:500;line-height:20px;overflow:hidden}.lesson-selection-dialog__checkbox{cursor:pointer;background-color:#fff;border:2px solid #e0e0e0;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;padding:0;transition:all .2s;display:flex}.lesson-selection-dialog__checkbox svg{width:12px;height:12px}.lesson-selection-dialog__checkbox--checked{background-color:var(--color-first);border-color:var(--color-first)}.lesson-selection-dialog__checkbox--indeterminate{border-color:var(--color-first);background-color:#fff}.lesson-selection-dialog__checkbox--unchecked:hover{border-color:var(--color-first);background-color:rgba(var(--color-first),.05)}.lesson-selection-dialog__checkbox-indeterminate{background-color:var(--color-first);border-radius:1px;width:10px;height:3px}.lesson-selection-dialog__actions{border:1px solid var(--Grays-Gray-05,#e0e0e0);background:#f9f9f9;border-radius:0 0 8px 8px;justify-content:flex-end;align-items:center;gap:16px;padding:12px 8px;display:flex}.lesson-selection-dialog__actions .button:disabled,.lesson-selection-dialog__actions .button[disabled]{color:#ababab;opacity:.6;background:0 0}.lesson-selection-dialog__footer-count{font-family:var(--font-second);color:#4e4e4e;white-space:nowrap;font-size:16px;font-weight:700;line-height:26px}.lesson-selection-dialog__field{margin-bottom:20px}.lesson-selection-dialog__field:last-child{margin-bottom:0}.lesson-selection-dialog__no-lessons{text-align:center;color:var(--color-text-secondary);background-color:var(--color-background-light);border-radius:8px;padding:20px;font-size:14px}.lesson-selection-dialog__error-title{color:var(--ui-color-text-error);font-family:var(--font-second);font-size:14px;font-style:normal;font-weight:500;line-height:20px}.lesson-selection-dialog__error-message{color:var(--ui-color-text-error);font-family:var(--font-second);font-size:16px;font-style:normal;font-weight:500;line-height:24px}.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}}