.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}.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-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:16px;font-weight:600;display:flex}.chat-mermaid-card__footer .icon{color:#333}.chat-messages{flex-direction:column;flex:1;min-height:0;max-height:100%;padding:16px;display:flex;position:relative;overflow-x:hidden;overflow-y:auto}.chat-messages__container{overflow-y:unset;flex-direction:column;flex:1;gap:10px;display:flex}.chat-messages__container::-webkit-scrollbar{width:8px;height:8px}.chat-messages__container::-webkit-scrollbar-track{background:#f2f2f2}.chat-messages__container::-webkit-scrollbar-thumb{background-color:#ababab;border-radius:20px}.chat-messages__container{scrollbar-width:thin;scrollbar-color:#ababab #f2f2f2}.chat-messages__empty-state{text-align:center;color:#767676;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;padding:32px 16px;display:flex}.chat-messages__empty-state-content{max-width:320px}.chat-messages__empty-state-content h3{color:#333;margin-bottom:12px;font-size:32px}.chat-messages__empty-state-content p{margin:0;font-size:16px;line-height:1.5}.chat-messages__toast{color:#fff;background-color:#333;border-radius:20px;align-items:center;gap:8px;padding:8px 16px;font-size:14px;animation:.3s ease-in-out fadeIn;display:flex;position:absolute;bottom:16px;left:50%;transform:translate(-50%)}.chat-messages--loading{justify-content:center;align-items:center;min-height:200px;display:flex}.chat-messages__loading{padding:16px}.chat-message-container{flex-direction:column;display:flex;position:relative}.chat-message-container:hover .chat-message__debug-actions{opacity:1}.chat-message__debug-actions{opacity:0;gap:4px;transition:opacity .2s;display:flex;position:absolute;top:-8px;right:-8px}.chat-message__context-view{color:#333;background-color:#f2f2f2;border-radius:8px;margin-top:8px;padding:8px;font-size:14px}.chat-message__context-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.chat-message__context-title{color:#767676;margin:0;font-size:14px}.chat-message__debug-button{cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:4px;display:flex}.chat-message__debug-button:hover{background-color:#e0e0e0}.chat-message__context-data{font-family:var(--font-first);white-space:pre-wrap;background-color:#fff;border-radius:4px;max-height:200px;margin:0;padding:8px;font-size:14px;overflow-y:auto}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}.practice-origin-label{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-medium);line-height:var(--ui-line-height-16);color:var(--ui-color-orange-600);display:inline-flex}.practice-origin-label--tutor{color:var(--ui-color-purple-600)}.feedback-status-modal{--feedback-status-modal-mascot-width:3rem;--feedback-status-modal-mascot-height:3.5rem}.feedback-status-modal__content{align-items:center;gap:var(--ui-space-sm);padding:var(--ui-space-md);text-align:center;flex-direction:column;display:flex}.feedback-status-modal__mascot{width:var(--feedback-status-modal-mascot-width);height:var(--feedback-status-modal-mascot-height);background-position:50%;background-repeat:no-repeat;background-size:contain}.feedback-status-modal__mascot--success{background-image:var(--tangerine-ai-bot-happy)}.feedback-status-modal__mascot--error{background-image:var(--tangerine-ai-bot-disconnected)}.feedback-status-modal__title{font-family:var(--ui-font-family-heading);font-size:var(--ui-font-size-22);font-weight:var(--ui-font-weight-semibold);line-height:var(--ui-line-height-32);color:var(--ui-color-neutral-grey-900);margin:0}.feedback-status-modal__description{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-16);font-weight:var(--ui-font-weight-regular);line-height:var(--ui-line-height-24);color:var(--ui-color-neutral-grey-900);margin:0}.quadrant-chart{--quadrant-chart-gutter:40px;padding:var(--quadrant-chart-gutter);min-height:600px;position:relative}.quadrant-chart--loading{justify-content:center;align-items:center;display:flex}.quadrant-chart__corner-label{font-family:var(--font-second);color:#333;white-space:nowrap;z-index:2;border-radius:16px;padding:4px 8px;font-size:14px;font-weight:500;line-height:20px;position:absolute}.quadrant-chart__corner-label--top-left{top:calc(var(--quadrant-chart-gutter)/2);background-color:#ffebe2;left:0;transform:translateY(-50%)}.quadrant-chart__corner-label--top-right{top:calc(var(--quadrant-chart-gutter)/2);background-color:#d7fedb;right:0;transform:translateY(-50%)}.quadrant-chart__corner-label--bottom-left{bottom:calc(var(--quadrant-chart-gutter)/2);background-color:#ffeaed;left:0;transform:translateY(50%)}.quadrant-chart__corner-label--bottom-right{bottom:calc(var(--quadrant-chart-gutter)/2);background-color:#d6f6ff;right:0;transform:translateY(50%)}.quadrant-chart__axis-horizontal{top:50%;left:var(--quadrant-chart-gutter);right:var(--quadrant-chart-gutter);z-index:1;background-color:#767676;height:1px;position:absolute}.quadrant-chart__axis-vertical{left:50%;top:var(--quadrant-chart-gutter);bottom:var(--quadrant-chart-gutter);z-index:1;background-color:#767676;width:1px;position:absolute}.quadrant-chart__axis-label{font-family:var(--font-second);color:#4e4e4e;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap;z-index:2;background-color:#f9f9f9;align-items:center;gap:4px;padding:8px 0;font-size:12px;font-weight:700;line-height:18px;display:flex;position:absolute}.quadrant-chart__axis-label .icon__wrapper{flex-shrink:0}.quadrant-chart__axis-label--x-negative{top:50%;left:calc(var(--quadrant-chart-gutter)/2);transform:translate(-50%,-50%)rotate(-90deg)}.quadrant-chart__axis-label--x-positive{top:50%;right:calc(var(--quadrant-chart-gutter)/2);transform:translate(50%,-50%)rotate(-90deg)}.quadrant-chart__axis-label--y-positive{left:50%;top:calc(var(--quadrant-chart-gutter)/2);transform:translate(-50%,-50%)}.quadrant-chart__axis-label--y-negative{left:50%;bottom:calc(var(--quadrant-chart-gutter)/2);transform:translate(-50%,50%)}.quadrant-chart__area{height:calc(600px - var(--quadrant-chart-gutter)*2);z-index:3;width:100%;position:relative}.quadrant-chart__cluster{-webkit-appearance:none;appearance:none;cursor:pointer;background:0 0;border:none;border-radius:60px;justify-content:center;align-items:center;padding:0;display:flex;position:absolute}.quadrant-chart__cluster--single .avatar{width:48px;height:48px}.quadrant-chart__cluster--multi{background-color:#333;border:2px solid #fff}.quadrant-chart__cluster-count{font-family:var(--font-second);color:#fff;font-size:16px;font-weight:700;line-height:24px}.topic-ranking-item{border-radius:var(--border-radius-01);flex-direction:column;gap:4px;margin:8px 0;padding:8px;display:flex}.topic-ranking-item:hover{cursor:pointer;background-color:#f9f9f9}.topic-ranking-item:last-child{border-bottom:none}.topic-ranking-item__row{justify-content:space-between;align-items:center;gap:16px;margin-bottom:2px;display:flex}.topic-ranking-item__info{align-items:center;gap:16px;min-width:0;margin-right:2px;display:flex}.topic-ranking-item__name{font-family:var(--font-second);color:#333;white-space:nowrap;text-overflow:ellipsis;font-size:16px;font-weight:400;line-height:20px;overflow:hidden}.topic-ranking-item__discipline-badge{font-family:var(--font-second);white-space:nowrap;background-color:#f2f2f2;border-radius:8px;padding:4px 8px;font-size:14px;font-weight:500;line-height:18px}.topic-ranking-item__actions{flex-shrink:0;align-items:center;gap:4px;display:flex}.topic-ranking-item__frequency{font-family:var(--font-first);font-size:14px;font-weight:700;line-height:20px}.topic-ranking-item__chevron{cursor:pointer;color:#767676;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;padding:4px;transition:transform .2s;display:flex}.topic-ranking-item__chevron:hover{background-color:#f2f2f2}.topic-ranking-item__chevron--expanded{transform:rotate(180deg)}.topic-ranking-item__bar{background-color:#f2f2f2;border-radius:3px;width:100%;height:8px;overflow:hidden}.topic-ranking-item__bar-fill{border-radius:3px;height:100%;transition:width .3s}.topic-ranking-item--color-1 .topic-ranking-item__frequency{color:#6b0a6b}.topic-ranking-item--color-1 .topic-ranking-item__bar-fill{background-color:#e047e0}.topic-ranking-item--color-2 .topic-ranking-item__frequency{color:#70022e}.topic-ranking-item--color-2 .topic-ranking-item__bar-fill{background-color:#e3366f}.topic-ranking-item--color-3 .topic-ranking-item__frequency{color:#662014}.topic-ranking-item--color-3 .topic-ranking-item__bar-fill{background-color:#ff7450}.topic-ranking-item--color-4 .topic-ranking-item__frequency{color:#664306}.topic-ranking-item--color-4 .topic-ranking-item__bar-fill{background-color:#ffb233}.topic-ranking-item--color-5 .topic-ranking-item__frequency{color:#305001}.topic-ranking-item--color-5 .topic-ranking-item__bar-fill{background-color:#91d432}.topic-ranking-item--color-6 .topic-ranking-item__frequency{color:#05490b}.topic-ranking-item--color-6 .topic-ranking-item__bar-fill{background-color:#36c03c}.topic-ranking-item--color-7 .topic-ranking-item__frequency{color:#014d5c}.topic-ranking-item--color-7 .topic-ranking-item__bar-fill{background-color:#3ce4f1}.topic-ranking-item--color-8 .topic-ranking-item__frequency{color:#0a3366}.topic-ranking-item--color-8 .topic-ranking-item__bar-fill{background-color:#4eabff}.tutor-usage-section{flex-direction:column;gap:24px;display:flex}.tutor-usage-section__title{font-family:var(--font-first);color:#333;margin:0;font-size:18px;font-weight:700;line-height:28px}.tutor-usage-section__stats{--tutor-usage-section-stat-min-width:13rem;grid-template-columns:repeat(auto-fit,minmax(var(--tutor-usage-section-stat-min-width),1fr));gap:16px;margin:0;padding:0;list-style:none;display:grid}.tutor-usage-section__stats-item{display:grid}.tutor-usage-section__empty{font-family:var(--font-second);color:#767676;text-align:center;margin:0;padding:24px 0;font-size:14px}.tutor-usage-section__loading{justify-content:center;align-items:center;padding:48px 0;display:flex}.special-needs-selector .select-customizable__label{margin-bottom:8px}.teacher-tools-view__content{flex-direction:column;gap:16px;width:100%;padding:0;display:flex}.teacher-tools-view__grid{grid-template-columns:repeat(3,1fr);gap:24px 16px;display:grid}@media (max-width:1023px){.teacher-tools-view__grid{grid-template-columns:repeat(2,1fr);gap:24px 16px}}@media (max-width:575px){.teacher-tools-view__grid{grid-template-columns:1fr;gap:16px;padding:0 16px}}