@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}.chat-action-pills{flex-direction:column;align-items:flex-end;gap:8px;padding:8px 8px 8px 0;display:flex}.chat-action-pills__pill{cursor:pointer;font-family:var(--font-second);color:#333;white-space:nowrap;background-color:#f9f9f9;border:1px solid #f2f2f2;border-radius:60px;align-items:center;gap:8px;padding:4px 8px;font-size:16px;font-weight:500;line-height:24px;transition:all .15s;display:inline-flex;box-shadow:0 2px #e8e8e8}.chat-action-pills__pill:hover:not(:disabled){border-color:#e0e0e0;box-shadow:0 3px #e8e8e8}.chat-action-pills__pill:active:not(:disabled){box-shadow:inset 0 3px rgba(224,224,224,.7)}.chat-action-pills__pill:disabled{opacity:.5;cursor:not-allowed}.chat-action-pills__pill--primary{color:#333;background-color:#f9f9f9;border-color:#f2f2f2}.chat-action-pills__pill--primary:hover:not(:disabled){border-color:#e0e0e0}.chat-action-pills__pill--secondary{color:#4e4e4e;background-color:transparent;border-color:#e0e0e0}.chat-action-pills__text{white-space:nowrap}.chat-audio-recorder{background:var(--ui-color-brand-fod-primary-a);border-radius:24px;width:100%;min-height:40px;position:relative;overflow:hidden}.chat-audio-recorder__content{z-index:1;color:#fff;justify-content:space-between;align-items:center;gap:12px;padding:4px 12px;display:flex;position:relative}.chat-audio-recorder__waves{flex:1;align-items:center;gap:3px;height:30px;margin-right:8px;display:inline-flex}.chat-audio-recorder__waves span{background:rgba(255,255,255,.95);border-radius:2px;width:4px;height:4px}.chat-audio-recorder__actions{flex-shrink:0;align-items:center;gap:8px;display:inline-flex}.chat-audio-recorder__icon-btn{cursor:pointer;background:#f9f9f9;border:1px solid #f2f2f2;border-radius:50%;place-items:center;width:24px;height:24px;padding:0;transition:all .2s ease-in-out;display:grid}.chat-audio-recorder__icon-btn--white{background:#fff;border:1px solid #f2f2f2;box-shadow:0 1px 2px rgba(0,0,0,.08)}.chat-audio-recorder__icon-btn svg{width:16px;height:16px}.chat-audio-recorder__icon-btn:not(:disabled):hover{background:#f2f2f2;border:1px solid #e0e0e0}.chat-audio-recorder__icon-btn:not(:disabled):active{background:#f9f9f9;transform:translateY(0);box-shadow:inset 0 3px rgba(224,224,224,.7)}.chat-audio-recorder__icon-btn:disabled{cursor:not-allowed;background:#f2f2f2;transform:none;box-shadow:0 1px 2px rgba(0,0,0,.05)}.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}.challenge-type-tag{align-items:center;gap:var(--ui-space-xs);padding:var(--ui-space-xxxs)var(--ui-space-xs);border-radius:var(--ui-radius-xxl);font-size:var(--ui-font-size-14);font-weight:var(--ui-font-weight-bold);font-family:var(--ui-font-family-body);line-height:var(--ui-line-height-20);text-overflow:ellipsis;white-space:nowrap;display:inline-flex;overflow:hidden}.challenge-type-tag:before{content:"";width:var(--ui-icon-size-md);height:var(--ui-icon-size-md);font-size:var(--ui-font-size-20);flex-shrink:0;line-height:1}.challenge-type-tag.done{background:var(--ui-color-neutral-grey-100);color:var(--ui-color-neutral-grey-600)}.challenge-type-tag.done:before{filter:grayscale()}.challenge-type-tag--new{background:var(--ui-color-green-200);color:var(--ui-color-green-800)}.challenge-type-tag--new:before{content:"🌱"}.challenge-type-tag--review{background:var(--ui-color-blue-200);color:var(--ui-color-blue-800)}.challenge-type-tag--review:before{content:"🧠"}.challenge-type-tag--improvement{background:var(--ui-color-orange-200);color:var(--ui-color-orange-800)}.challenge-type-tag--improvement:before{content:"🎯"}.challenge-type-tag--combo{background:var(--ui-color-yellow-200);color:var(--ui-color-yellow-800)}.challenge-type-tag--combo:before{content:"⚡"}.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-modal__content{--feedback-modal-content-gap:var(--ui-space-md);gap:var(--feedback-modal-content-gap);flex-direction:column;display:flex}.feedback-modal__subtitle{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-text-secondary);margin:0}.feedback-modal__field{gap:var(--ui-space-xxs);flex-direction:column;display:flex}.teacher-layout-wrapper{height:100vh;display:flex;overflow:hidden}.teacher-layout-wrapper__sidebar{background:var(--color-background);flex-direction:column;flex-shrink:0;width:13rem;height:100vh;transition:width .3s;display:flex;overflow-x:hidden;overflow-y:auto}.teacher-layout-wrapper__sidebar-header{padding:2.25rem var(--ui-space-md)0;justify-content:space-between;align-items:center;display:flex}.teacher-layout-wrapper__collapse-btn{padding:var(--ui-space-xs);cursor:pointer;border-radius:var(--ui-radius-xl);background:0 0;border:none;justify-content:center;align-items:center;transition:background-color .2s;display:flex}.teacher-layout-wrapper__collapse-btn:hover{background-color:var(--ui-color-brand-fod-lighter)}.teacher-layout-wrapper__collapse-btn .icon{color:var(--ui-color-neutral-grey-700)}.teacher-layout-wrapper__title-container{visibility:visible;transition:opacity .3s;overflow:hidden}.teacher-layout-wrapper__title{padding:var(--ui-space-lg)var(--ui-space-md)0;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-28);color:var(--ui-color-neutral-grey-700);white-space:nowrap;margin:0}.teacher-layout-wrapper__navigation{padding:var(--ui-space-lg)0 0 var(--ui-space-md);flex:1;transition:padding .3s}.teacher-layout-wrapper__nav-list{gap:var(--ui-space-xs);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.teacher-layout-wrapper__nav-item{padding:var(--ui-space-xs);border-radius:var(--ui-radius-xl)0 0 var(--ui-radius-xl);cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;width:100%;transition:background-color .2s,color .2s;display:flex;overflow:hidden}.teacher-layout-wrapper__nav-item .icon{width:var(--ui-icon-size-md);height:var(--ui-icon-size-md);color:var(--ui-color-neutral-grey-700);flex-shrink:0;transition:color .2s}.teacher-layout-wrapper__nav-item:hover{background:var(--ui-color-brand-fod-lighter)}.teacher-layout-wrapper__nav-item--active{background:var(--ui-color-neutral-white)}.teacher-layout-wrapper__nav-item--active .icon,.teacher-layout-wrapper__nav-item--active .teacher-layout-wrapper__nav-text{color:var(--ui-color-brand-fod-primary-a)}.teacher-layout-wrapper__nav-item--active:hover{background:var(--ui-color-neutral-white)}.teacher-layout-wrapper__nav-skeleton-item{align-items:center;gap:12px;padding:8px 15px;display:flex}.teacher-layout-wrapper__nav-skeleton-text{flex:1}.teacher-layout-wrapper__nav-text{margin-left:var(--ui-space-xs);font-family:var(--ui-font-family-heading);font-weight:var(--ui-font-weight-semibold);font-size:var(--ui-font-size-16);line-height:var(--ui-line-height-26);color:var(--ui-color-neutral-grey-700);white-space:nowrap;opacity:1;width:auto;transition:opacity .2s,width .3s}.teacher-layout-wrapper__sidebar-footer{--teacher-layout-footer-gap:var(--ui-space-md);--teacher-layout-footer-padding-block:var(--ui-space-md);--teacher-layout-footer-padding-inline:var(--ui-space-md);gap:var(--teacher-layout-footer-gap);padding:var(--teacher-layout-footer-padding-block)var(--teacher-layout-footer-padding-inline);flex-direction:column;margin-top:auto;display:flex}.teacher-layout-wrapper__dev-toggle .switch__texts{margin-left:0}.teacher-layout-wrapper__dev-toggle .switch__texts .switch__label{font-size:var(--ui-font-size-14)}.teacher-layout-wrapper__dev-toggle-hint{color:var(--ui-color-neutral-grey-500);margin-top:4px;font-size:11px;line-height:1.3}.teacher-layout-wrapper__main{background:var(--ui-color-neutral-white);flex:1;min-width:0;padding-top:36px;padding-bottom: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:5rem}.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{padding:var(--ui-space-lg)0 0 var(--ui-space-md);align-items:center}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__nav-item{padding:var(--ui-space-xs);justify-content:center}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__sidebar-footer{--teacher-layout-footer-padding-inline:var(--ui-space-xs);align-items:center}.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}.tutor-usage-chart{border-top:1px solid #e0e0e0;flex-direction:column;gap:16px;padding-top:24px;display:flex}.tutor-usage-chart__header{justify-content:space-between;align-items:flex-start;display:flex}.tutor-usage-chart__header-text{flex-direction:column;gap:4px;display:flex}.tutor-usage-chart__title{font-family:var(--font-first);color:#333;margin:0;font-size:18px;font-weight:700;line-height:24px}.tutor-usage-chart__description{font-family:var(--font-second);color:#767676;margin:0;font-size:14px;font-weight:400;line-height:20px}.tutor-usage-chart__filter{flex-shrink:0;min-width:180px}.tutor-usage-chart__container{margin-top:16px}.tutor-usage-chart__legend{align-items:center;gap:16px;margin:0;padding:0;list-style:none;display:flex}.tutor-usage-chart__legend-item{font-family:var(--font-second);color:#4e4e4e;align-items:center;gap:4px;font-size:14px;font-weight:500;line-height:20px;display:flex}.tutor-usage-chart__legend-color{flex-shrink:0;width:28px;height:12px}.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}.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}.stat-card{--stat-card-icon-size:36px;--stat-card-toggle-size:24px;border:1px solid #e0e0e0;border-radius:8px;align-items:center;gap:8px;padding:8px 16px;display:flex}.stat-card--expandable{flex-direction:column;align-items:stretch}.stat-card__row{align-items:center;gap:16px;width:100%;display:flex}.stat-card__row--clickable{font:inherit;color:inherit;text-align:left;cursor:pointer;background:0 0;border:none;border-radius:8px;margin:0;padding:0}.stat-card__row--clickable:hover .stat-card__toggle{color:#333}.stat-card__row--clickable:focus-visible{outline:2px solid var(--color-first);outline-offset:2px}.stat-card__icon{width:var(--stat-card-icon-size);height:var(--stat-card-icon-size);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.stat-card__icon--success{color:#28a773;background-color:#e6fbfc}.stat-card__icon--success .icon--color-default{color:#02788a}.stat-card__icon--rollback{color:#e04949;background-color:#ffeaed}.stat-card__icon--rollback .icon--color-default{color:#97033a}.stat-card__icon--timeline{color:#8e0d8e;background-color:#fff1ff}.stat-card__icon--timeline .icon--color-default{color:#8e0d8e}.stat-card__icon--time{color:#0a6910;background-color:#d7fedb}.stat-card__icon--time .icon--color-default{color:#0a6910}.stat-card__icon--group{background-color:#fffad6}.stat-card__icon--group .icon--color-default{color:#996008}.stat-card__icon--mastery{color:#8e0d8e;background-color:#fff1ff}.stat-card__icon--mastery .icon--color-default{color:#8e0d8e}.stat-card__description{font-family:var(--font-second);color:#4e4e4e;background-color:#f9f9f9;border-radius:8px;margin:0;padding:8px;font-size:14px;line-height:20px}.stat-card__info{flex:1;gap:8px;min-width:0;display:flex}.stat-card--layout-inline .stat-card__info{flex-direction:row-reverse;justify-content:flex-end;align-items:baseline}.stat-card--layout-spread{gap:0}.stat-card--layout-spread .stat-card__info{flex-direction:row;justify-content:space-between}.stat-card--layout-stacked .stat-card__info{flex-direction:column;align-items:flex-start;gap:2px}.stat-card__value{font-family:var(--font-second);color:#333;flex-shrink:0;font-weight:700}.stat-card--layout-inline .stat-card__value,.stat-card--layout-spread .stat-card__value{font-size:18px;line-height:26px}.stat-card__label{font-family:var(--font-second);color:#4e4e4e;font-size:14px;line-height:20px}.stat-card__toggle{width:var(--stat-card-toggle-size);height:var(--stat-card-toggle-size);cursor:pointer;color:#767676;background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:transform .4s;display:flex}.stat-card__toggle svg{width:var(--stat-card-toggle-size);height:var(--stat-card-toggle-size)}.stat-card__toggle--expanded{transform:rotate(180deg)}.prerequisite-list{flex-direction:column;gap:8px;display:flex}.prerequisite-list__description{font-family:var(--font-second);color:#4e4e4e;background-color:#f9f9f9;border-radius:8px;margin:0;padding:8px;font-size:14px;line-height:20px}.prerequisite-list__description strong{font-family:var(--font-second-bold)}.prerequisite-list__items{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.prerequisite-list__item{flex-direction:column;gap:4px;display:flex}.prerequisite-list__item:not(:last-child){border-bottom:1px solid #e0e0e0;padding-bottom:8px}.special-needs-selector .select-customizable__label{margin-bottom:8px}.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-tools-view__content{flex-direction:column;gap:16px;width:100%;padding:0;display:flex}.teacher-tools-view__title{font-family:var(--font-first);color:#333;margin:0;padding:8px 0;font-size:22px;font-weight:700;line-height:32px}.teacher-tools-view__description-container{align-items:center;gap:8px;display:flex}.teacher-tools-view__description{font-family:var(--font-second);color:#4e4e4e;flex:1;margin:0;font-size:16px;font-weight:500;line-height:24px}.teacher-tools-view__description-image{background-image:var(--tangerine-ai-bot-help);background-position:50%;background-size:cover;width:48px;height:56px}.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}}