.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-dropdown-overlay{z-index:999;background:0 0;position:fixed;top:0;bottom:0;left:0;right:0}.chat-dropdown-portal{z-index:1000;position:fixed}.chatbot-mathField{align-items:center;line-height:1;transition:height .2s;display:none}.chatbot-mathField-show{z-index:4002;justify-content:center;align-items:center;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}.chatbot-mathField.chatbot-selected{border-color:var(--color-tangerine-ai,#bc3ebc)}.chatbot-mathField.chatbot-selected .chatbot-calc-button{fill:var(--color-tangerine-ai,#bc3ebc)}.chatbot-mathField-modal{background-color:#fff;border:1px solid #e0e0e0;border-radius:8px;width:90%;max-width:500px;padding:0;overflow:hidden}.chatbot-mathField-header{border-bottom:1px solid #e0e0e0;justify-content:space-between;align-items:center;margin:0;padding:8px;display:flex}.chatbot-mathField-title{font-size:18px;line-height:24px;font-family:var(--font-second);color:#4e4e4e;margin:0;font-weight:600}.chatbot-mathField-close{cursor:pointer;background:0 0;border:none;padding:4px}.chatbot-mathField-close svg{fill:#333;width:20px;height:20px}.chatbot-mathField-close .icon--color-default.icon--lib-skin path{fill:#333}.chatbot-mathField-content{flex-direction:column;gap:15px;padding:8px 16px;display:flex}.chatbot-mathField-input{border:1px solid #ababab;border-radius:8px;flex-direction:column;flex:1;gap:8px;min-height:40px;padding:8px 12px;display:flex;position:relative}.chatbot-mathField-input:focus-within{border:1px solid var(--color-tangerine-ai,#bc3ebc)}.chatbot-mathField-submit{color:#fff;background:var(--color-tangerine-ai,#bc3ebc);cursor:pointer;font-family:var(--font-first);border:none;border-radius:8px;justify-content:center;align-self:flex-end;align-items:center;min-width:40px;height:40px;padding:8px 12px;font-size:18px;font-weight:700;transition:transform .2s;display:flex;position:relative;overflow:hidden}.chatbot-mathField-submit>*{z-index:1;position:relative}.chatbot-mathField-submit:before{content:"";background:var(--color-tangerine-ai-lighter,#d068d0);border-radius:inherit;opacity:0;z-index:0;transition:opacity .4s;position:absolute;top:0;bottom:0;left:0;right:0}.chatbot-mathField-submit:after{content:"";background:var(--color-tangerine-ai-dark,#741571);border-radius:inherit;opacity:0;z-index:0;transition:opacity .2s;position:absolute;top:0;bottom:0;left:0;right:0}.chatbot-mathField-submit:hover:before,.chatbot-mathField-submit:active:after{opacity:1}.chatbot-mathField.chatbot-with-focus{opacity:1;z-index:4002;background-color:#fff;border:none;border-radius:0;justify-content:center;align-items:center;height:calc(100vh - 320px);font-size:1.4em;display:flex;position:fixed;top:0;left:0;right:0}.chatbot-mathField.chatbot-disabled math-field>span{pointer-events:none}math-field::part(virtual-keyboard-toggle){display:none}math-field::part(virtual-keyboard-toggle):after{display:none}.chatbot-mathField__tooltip .react-tooltip{margin-top:4px!important}body .ML__keyboard{z-index:10001;--keyboard-zindex:10001;position:fixed}body .ML__keyboard .ML__keyboard--plate .rows ul:last-child li.action:last-child{background-color:var(--color-tangerine-ai,#bc3ebc)}body .ML__keyboard .MLK__rows .row .MLK__keycap{min-width:28px}@supports (-webkit-touch-callout:none){body .ML__keyboard .MLK__backdrop{height:calc(30px + var(--_keyboard-height))}}@media (pointer:coarse){.ML__keyboard .MLK__rows .row .MLK__keycap{min-width:28px}}@media (min-width:560px) and (pointer:coarse){.ML__keyboard .MLK__rows .row .MLK__keycap{min-width:50px}}.chat-link{color:var(--color-tangerine-ai,#bc3ebc);cursor:pointer;font-weight:600;text-decoration:none;transition:all .2s;display:inline-block}.chat-link:hover{color:var(--color-tangerine-ai,#bc3ebc);text-decoration:underline}.chat-link:active{color:var(--color-tangerine-ai-dark,#741571);text-decoration:underline}.chat-link:focus{outline:2px solid var(--color-tangerine-ai,#bc3ebc);outline-offset:2px;border-radius:2px}.chat-link:focus-visible{outline:2px solid var(--color-tangerine-ai,#bc3ebc);outline-offset:2px;border-radius:2px}.chat-link:focus:not(:focus-visible){outline:none}.chat-link--disabled{color:var(--color-tangerine-ai,#bc3ebc);opacity:.5;cursor:not-allowed;pointer-events:none;text-decoration:none}.chat-link--disabled:hover{text-decoration:none}.chat-mermaid-card{cursor:pointer;background:#fff;border:1px solid #e0e0e0;border-radius:8px;margin:8px 0;transition:all .2s}.chat-mermaid-card:hover{transform:translateY(-1px);box-shadow:0 4px 8px rgba(0,0,0,.1)}.chat-mermaid-card--error{color:#e04949;box-shadow:none;cursor:default;background:#fef0ef;border-color:#e04949;padding:8px}.chat-mermaid-card--error:hover{box-shadow:none;border-color:#e04949;transform:none}.chat-mermaid-card__preview{padding:8px;overflow:hidden}.chat-mermaid-card__preview .diagram-mermaid,.chat-mermaid-card__preview .diagram-mermaid *{pointer-events:none;-webkit-user-select:none;user-select:none}.chat-mermaid-card__footer{background-color:#f2f2f2;border-top:1px solid #e0e0e0;border-radius:0 0 8px 8px;padding:16px}.chat-mermaid-card__footer__content{justify-content:space-between;align-items:center;gap:8px;display:flex}.chat-mermaid-card__footer__title{color:#333;align-items:center;gap:4px;font-size:15px;font-weight:600;display:flex}.chat-mermaid-card__footer svg path{fill:#333}.chat-checkbox{font-size:14px;display:block}.chat-checkbox__label{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:flex-start;gap:8px;display:flex}.chat-checkbox__input-wrapper{flex-shrink:0;margin-top:2px;position:relative}.chat-checkbox__input{opacity:0;width:0;height:0;position:absolute}.chat-checkbox__custom{background-color:#fff;border:2px solid #e0e0e0;border-radius:4px;justify-content:center;align-items:center;width:20px;height:20px;transition:all .2s;display:flex;position:relative}.chat-checkbox__custom:after{content:"";opacity:0;border-radius:4px;transition:opacity .2s;position:absolute;top:-2px;bottom:-2px;left:-2px;right:-2px}.chat-checkbox__checkmark{opacity:0;font-size:12px;transition:all .2s;transform:scale(.8)}.chat-checkbox__content{flex-direction:column;flex:1;gap:4px;display:flex}.chat-checkbox__text{font-family:var(--font-second);color:#333;font-size:14px;font-weight:600;line-height:1.6}.chat-checkbox__description{color:#767676;font-size:12px;line-height:1.4}.chat-checkbox__label:hover .chat-checkbox__custom{border-color:var(--color-first);background-color:var(--color-first-alpha)}.chat-checkbox__input:checked+.chat-checkbox__custom{background-color:var(--color-first);border-color:var(--color-first)}.chat-checkbox__input:checked+.chat-checkbox__custom .chat-checkbox__checkmark{opacity:1;transform:scale(1)}.chat-checkbox__label:active .chat-checkbox__custom{background-color:var(--color-first);border-color:var(--color-first);transform:scale(.95)}.chat-checkbox__label:active .chat-checkbox__custom:after{opacity:.2;background-color:var(--color-first)}.chat-checkbox__input:focus-visible+.chat-checkbox__custom{outline:2px solid var(--color-first);outline-offset:2px}.chat-checkbox--disabled .chat-checkbox__label{cursor:not-allowed}.chat-checkbox--disabled .chat-checkbox__custom{opacity:.5;background-color:#f2f2f2;border-color:#e0e0e0}.chat-checkbox--disabled .chat-checkbox__text,.chat-checkbox--disabled .chat-checkbox__description{opacity:.5}.chat-checkbox--disabled .chat-checkbox__label:hover .chat-checkbox__custom{background-color:#f2f2f2;border-color:#e0e0e0}.chat-checkbox--position-right .chat-checkbox__label{flex-direction:row-reverse;justify-content:space-between}.chat-checkbox--position-right .chat-checkbox__input-wrapper{margin-top:0}.chat-checkbox--position-right .chat-checkbox__content{flex:1}.typing-indicator{justify-content:center;align-items:center;gap:7px;margin-top:0;display:flex}.typing-indicator--inline{background-color:transparent;border:none;justify-content:flex-start;width:auto;margin-top:8px;padding:8px 0 0}.typing-indicator span{border-radius:50%;width:8px;height:8px;animation:1.4s ease-in-out infinite typing-pulse;display:inline-block}.typing-indicator span:first-child{background-color:var(--color-tangerine-ai,#bc3ebc);animation-delay:0s}.typing-indicator span:nth-child(2){background-color:var(--color-tangerine-ai-dark,#741571);animation-delay:.2s}.typing-indicator span:nth-child(3){background-color:var(--color-tangerine-ai-light,#f0c0f0);animation-delay:.4s}@keyframes typing-pulse{0%,to{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.6)}}.analytics-filter-bar{align-items:center;gap:16px;display:flex}.analytics-filter-bar__filter{min-width:200px}.inappropriate-use-section{background-color:#fff;border:1px solid #e0e0e0;border-radius:8px;flex-direction:column;gap:16px;padding:16px 24px;display:flex;overflow:hidden}.inappropriate-use-section__header{justify-content:space-between;align-items:center;display:flex}.inappropriate-use-section__header-titles{flex-direction:column;gap:8px;display:flex}.inappropriate-use-section__title{font-family:var(--font-first);color:#333;margin:0;font-size:22px;font-weight:700;line-height:32px}.inappropriate-use-section__subtitle{font-family:var(--font-second);color:#4e4e4e;margin:0;font-size:16px;font-weight:600;line-height:24px}.inappropriate-use-section__header-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.inappropriate-use-section__mark-all-btn{font-family:var(--font-first);color:var(--color-first);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:8px;padding:2px 8px;font-size:16px;font-weight:700;line-height:26px}.inappropriate-use-section__mark-all-btn:disabled{opacity:.5;cursor:not-allowed}.inappropriate-use-section__view-all-btn{font-family:var(--font-first);color:var(--color-first);background-color:var(--color-first-alpha);border:1px solid var(--color-first);cursor:pointer;white-space:nowrap;border-radius:8px;padding:2px 8px;font-size:16px;font-weight:700;line-height:26px}.inappropriate-use-section__view-all-btn:disabled{opacity:.5;cursor:not-allowed}.inappropriate-use-section__cards{align-items:stretch;gap:24px;display:flex}.inappropriate-use-section__loading{justify-content:center;align-items:center;min-height:200px;display:flex}.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}.evaluation-criteria-selector{flex-direction:column;gap:24px;display:flex}.evaluation-criteria-selector .select-learning-objectives__chevron{justify-content:flex-end}.evaluation-criteria-selector--loading{justify-content:center;align-items:center;min-height:100px;display:flex}.evaluation-criteria-selector__field{flex-direction:column;display:flex}.evaluation-criteria-selector__label{margin-bottom:8px}.course-selector{gap:var(--spacing-sm);flex-wrap:wrap;justify-content:center;display:flex}.course-selector__button{transition:all .2s}.empty-state-analytics{text-align:center;padding:var(--spacing-3xl)var(--spacing-xl);flex-direction:column;justify-content:center;align-items:center;min-height:400px;display:flex}.empty-state-analytics__icon{color:var(--color-text-muted);margin-bottom:var(--spacing-lg);font-size:64px}.empty-state-analytics__message{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0 0 var(--spacing-md)0}.empty-state-analytics__description{font-size:var(--font-size-base);color:var(--color-text-secondary);max-width:500px;margin:0}.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{background:#fff;border-color:#bc3ebc}.teacher-tool-card--active:hover{border-color:#bc3ebc;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}}