.ui-breadcrumbs{--ui-breadcrumbs-gap:var(--ui-space-xs);--ui-breadcrumbs-line-height:var(--ui-line-height-24);--ui-breadcrumbs-color-text:var(--ui-color-neutral-grey-500);--ui-breadcrumbs-color-current:var(--ui-color-text-default);--ui-breadcrumbs-color-separator:var(--ui-color-neutral-grey-500);--ui-breadcrumbs-color-link-hover:var(--ui-color-text-default);--ui-breadcrumbs-color-link-active:var(--ui-color-brand-fod-primary-a);--ui-breadcrumbs-color-disabled:var(--ui-color-neutral-grey-500);--ui-breadcrumbs-bg-disabled:var(--ui-color-neutral-grey-100);flex-wrap:wrap;display:flex}.ui-breadcrumbs__list{align-items:center;gap:var(--ui-breadcrumbs-gap);flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex}.ui-breadcrumbs__item{align-items:center;gap:var(--ui-breadcrumbs-gap);display:flex}.ui-breadcrumbs__content{align-items:center;gap:var(--ui-breadcrumbs-gap);display:inline-flex}.ui-breadcrumbs__icon{align-items:center;line-height:0;display:inline-flex}.ui-breadcrumbs__text,.ui-breadcrumbs__link{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-breadcrumbs-line-height);color:var(--ui-breadcrumbs-color-text);align-items:center;display:inline-flex}.ui-breadcrumbs__text[aria-current=page]{color:var(--ui-breadcrumbs-color-current)}.ui-breadcrumbs__text[aria-disabled=true]{color:var(--ui-breadcrumbs-color-disabled);background-color:var(--ui-breadcrumbs-bg-disabled);cursor:not-allowed}.ui-breadcrumbs__link{cursor:pointer;text-decoration:none;transition:color .2s,-webkit-text-decoration .2s,-webkit-text-decoration .2s,text-decoration .2s}@media (prefers-reduced-motion:reduce){.ui-breadcrumbs__link{transition:none}}@media (hover:hover){.ui-breadcrumbs__link:hover{color:var(--ui-breadcrumbs-color-link-hover);text-decoration:underline}}.ui-breadcrumbs__link:active{color:var(--ui-breadcrumbs-color-link-active);text-decoration:underline}.ui-breadcrumbs__link:focus-visible{outline:var(--ui-stroke-2)solid var(--ui-color-stroke-focus-default);outline-offset:2px;border-radius:var(--ui-radius-md-lg)}.ui-breadcrumbs__separator{font-family:var(--ui-font-family-heading);font-size:var(--ui-font-size-18);font-weight:var(--ui-font-weight-semibold);color:var(--ui-breadcrumbs-color-separator)}.base-chatbot{transition:grid-template-columns var(--chatbot-transition-duration)cubic-bezier(.19,1,.22,1);grid-template-rows:100vh;grid-template-columns:1fr 0;width:100%;height:100vh;display:grid;position:relative;overflow:hidden}.base-chatbot.base-chatbot--resizing,.base-chatbot.base-chatbot--resizing .base-chatbot__container>*{transition:none}.base-chatbot__container{grid-column:1;width:100%;min-width:0;position:relative;overflow-x:hidden;overflow-y:auto}.base-chatbot__container>*{transition:width var(--chatbot-transition-duration)cubic-bezier(.19,1,.22,1);width:100%}.base-chatbot__chatbot{width:var(--chatbot-width);max-width:var(--chatbot-width);background-color:var(--chatbot-background);color:var(--chatbot-text-color);box-shadow:var(--chatbot-box-shadow);opacity:0;transition:transform var(--chatbot-transition-duration)cubic-bezier(.19,1,.22,1),opacity var(--chatbot-transition-duration)cubic-bezier(.19,1,.22,1),width 0s;will-change:transform,opacity;z-index:100;flex-direction:column;grid-column:2;min-width:0;height:100%;display:flex;position:relative;overflow:hidden;transform:translate(100%)}.base-chatbot__chatbot>*{flex-direction:column;height:100%;display:flex}.base-chatbot__chatbot>* .chatbot__content{flex-direction:column;flex:1;display:flex;overflow:hidden}.base-chatbot__chatbot>* .chatbot__content .chat-messages{flex:1;overflow-y:auto}.base-chatbot__chatbot>* .chatbot__content .chatbot__input-container{flex-shrink:0;margin-top:auto}.base-chatbot__button-container{z-index:101;bottom:var(--chatbot-button-bottom);right:var(--chatbot-button-right);opacity:1;transition:opacity .3s ease-in-out,right var(--chatbot-transition-duration)cubic-bezier(.19,1,.22,1);position:fixed}.base-chatbot__button-container--hidden{opacity:0;pointer-events:none}.base-chatbot--enabled{grid-template-columns:1fr var(--chatbot-width)}.base-chatbot--enabled .base-chatbot__chatbot{opacity:1;transform:translate(0)}.base-chatbot--enabled .base-chatbot__button-container:not(.base-chatbot__button-container--hidden){right:calc(var(--chatbot-width) + var(--chatbot-button-right))}.base-chatbot.chatbot-closing{grid-template-columns:1fr 0}.base-chatbot.chatbot-closing .base-chatbot__chatbot{opacity:0;transform:translate(100%)}.base-chatbot.chatbot-closing .base-chatbot__button-container:not(.base-chatbot__button-container--hidden){right:var(--chatbot-button-right)}.base-chatbot__chatbot:focus-within{outline:none}.base-chatbot__chatbot{contain:layout style}.base-chatbot--enabled{--chatbot-is-open:1}.base-chatbot__resize-overlay{z-index:9999;cursor:col-resize;-webkit-user-select:none;user-select:none;background-color:transparent;position:fixed;top:0;bottom:0;left:0;right:0}@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,.chatbot-button-toast{--chatbot-trigger-bottom:7em;--chatbot-trigger-right:2em;--chatbot-trigger-size:100px}.chatbot-button{bottom:var(--chatbot-trigger-bottom);right:var(--chatbot-trigger-right);cursor:pointer;z-index:100;transition:opacity .5s linear;animation:.6s ease-out forwards slideIn;display:flex;position:fixed}.chatbot-button__image{width:var(--chatbot-trigger-size);height:var(--chatbot-trigger-size);background-image:var(--tangerine-ai-bot);background-position:50%;background-repeat:no-repeat;background-size:cover}.chatbot-button--disconnected .chatbot-button__image{background-image:var(--tangerine-ai-bot-disconnected)}.chatbot-button:focus-visible{outline:var(--focus-ring-size,var(--ui-stroke-2))solid var(--focus-ring-color,var(--ui-color-stroke-focus-secondary));outline-offset:var(--focus-ring-offset,2px)}.chatbot-button-toast{--chatbot-button-toast-offset-right:calc(var(--chatbot-trigger-right) + var(--chatbot-trigger-size) + var(--ui-space-md));--chatbot-button-toast-width:36.375rem;z-index:101;right:var(--ui-space-md);bottom:var(--ui-space-md);left:var(--ui-space-md);max-height:calc(100vh - 2*var(--ui-space-md));position:fixed;overflow-x:hidden;overflow-y:auto}@media only screen and (min-width:640px){.chatbot-button-toast{z-index:100;right:var(--chatbot-button-toast-offset-right);bottom:var(--chatbot-trigger-bottom);width:min(var(--chatbot-button-toast-width),100vw - var(--chatbot-button-toast-offset-right) - var(--ui-space-md));max-height:none;left:auto;overflow:visible}}.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:"⚡"}.exit-practice-dialog{--exit-practice-dialog-mascot-width:5rem;--exit-practice-dialog-mascot-height:5.875rem}.exit-practice-dialog .footer-buttons .button--variant-secondary-ghost{--button-color:var(--ui-color-brand-fod-primary-a)}.exit-practice-dialog .MuiDialogContent-root{border-top:1px solid var(--ui-color-neutral-grey-200);border-bottom:1px solid var(--ui-color-neutral-grey-200)}.exit-practice-dialog__content{align-items:center;gap:var(--ui-space-xs);display:flex}.exit-practice-dialog__mascot{width:var(--exit-practice-dialog-mascot-width);height:var(--exit-practice-dialog-mascot-height);background-image:var(--tangerine-ai-bot-look-up);background-position:50%;background-repeat:no-repeat;background-size:contain;flex-shrink:0}.exit-practice-dialog__body{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-16);font-weight:var(--ui-font-weight-medium);line-height:var(--ui-line-height-24);color:var(--ui-color-neutral-grey-900);flex:1;min-width:0;margin:0}.tutor-ai-tabs{align-items:center;gap:8px;display:flex}.tutor-ai-tabs__tab{font-size:14px;font-family:var(--font-second);color:#333;cursor:pointer;border-radius:var(--border-radius-01);padding:8px;line-height:20px;transition:color 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0;border:none;justify-content:center;align-items:center;width:24px;height:24px;padding:0;display:flex}.student-xray-drawer__close-btn:hover{color:#333}.student-xray-drawer__body{flex-direction:column;gap:24px;padding:8px 16px;display:flex;overflow-y:auto}.student-xray-drawer__stats{gap:8px;display:flex}.student-xray-drawer__stat-card{border:1px solid #e0e0e0;border-radius:8px;flex:1;padding:8px 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.student-xray-drawer__intent-percentage{color:#6b0a6b}.student-xray-drawer__intent-row--color-1 .student-xray-drawer__intent-bar-fill{background-color:#e047e0}.student-xray-drawer__intent-row--color-2 .student-xray-drawer__intent-percentage{color:#70022e}.student-xray-drawer__intent-row--color-2 .student-xray-drawer__intent-bar-fill{background-color:#e3366f}.student-xray-drawer__intent-row--color-3 .student-xray-drawer__intent-percentage{color:#662014}.student-xray-drawer__intent-row--color-3 .student-xray-drawer__intent-bar-fill{background-color:#ff7450}.student-xray-drawer__intent-row--color-4 .student-xray-drawer__intent-percentage{color:#664306}.student-xray-drawer__intent-row--color-4 .student-xray-drawer__intent-bar-fill{background-color:#ffb233}.student-xray-drawer__intent-row--color-5 .student-xray-drawer__intent-percentage{color:#305001}.student-xray-drawer__intent-row--color-5 .student-xray-drawer__intent-bar-fill{background-color:#91d432}.student-xray-drawer__intent-row--color-6 .student-xray-drawer__intent-percentage{color:#05490b}.student-xray-drawer__intent-row--color-6 .student-xray-drawer__intent-bar-fill{background-color:#36c03c}.student-xray-drawer__intent-row--color-7 .student-xray-drawer__intent-percentage{color:#014d5c}.student-xray-drawer__intent-row--color-7 .student-xray-drawer__intent-bar-fill{background-color:#3ce4f1}.student-xray-drawer__intent-row--color-8 .student-xray-drawer__intent-percentage{color:#0a3366}.student-xray-drawer__intent-row--color-8 .student-xray-drawer__intent-bar-fill{background-color:#4eabff}.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}.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}