.chat-dev-tools{background-color:#f2f2f2;border-top:1px solid #e0e0e0;width:100%;font-size:14px;position:relative}.chat-dev-tools__header{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;padding:8px 16px;transition:background-color .2s;display:flex}.chat-dev-tools__title{color:#333;flex:none;margin-right:16px;font-weight:600}.chat-dev-tools__toggle{color:#767676;margin-left:auto;font-size:12px}.chat-dev-tools__status{align-items:center;gap:5px;margin-left:16px;display:flex}.chat-dev-tools__status-label{color:#767676;font-size:14px}.chat-dev-tools__status-indicator{border-radius:50%;width:8px;height:8px}.chat-dev-tools__status-text{font-size:14px;font-weight:500}.chat-dev-tools__prompt-indicator{align-items:center;gap:5px;margin-left:16px;display:flex}.chat-dev-tools__prompt-active{color:#28a773;background-color:#ecfaee;border-radius:10px;padding:2px 6px;font-size:14px;font-weight:500}.chat-dev-tools__content{max-height:0;transition:max-height .3s ease-out;overflow:hidden}.chat-dev-tools--expanded .chat-dev-tools__content{border-top:1px solid #e0e0e0;max-height:500px;padding:16px;overflow-y:auto}.chat-dev-tools__section{margin-bottom:16px}.chat-dev-tools__section h3{color:#767676;margin:0 0 8px;font-size:16px;font-weight:600}.chat-dev-tools__code{white-space:pre-wrap;word-break:break-word;color:#333;background-color:#e5e5e5;border:1px solid #e0e0e0;border-radius:4px;max-height:200px;margin:0;padding:12px;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:12px;line-height:1.4;overflow:auto}.chat-dev-tools__textarea{color:#333;resize:vertical;background-color:#e5e5e5;border:1px solid #e0e0e0;border-radius:4px;width:100%;min-height:80px;padding:10px;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:14px;line-height:1.4}.chat-dev-tools__textarea:focus{border-color:var(--ui-color-brand-fod-primary-a);box-shadow:0 0 0 2px var(--ui-color-brand-fod-alpha);outline:none}.chat-dev-tools__textarea::placeholder{color:#ababab}.chat-dev-tools__input-group{flex-direction:column;display:flex;position:relative}.chat-dev-tools__buttons{z-index:1;gap:4px;display:flex;position:absolute;top:8px;right:8px}.chat-dev-tools__clear-button{color:#767676;cursor:pointer;background-color:rgba(0,0,0,.1);border:none;border-radius:50%;justify-content:center;align-items:center;width:20px;height:20px;font-size:18px;line-height:1;display:flex}.chat-dev-tools__clear-button:hover{color:#333;background-color:rgba(0,0,0,.2)}.chat-dev-tools__save-button{background-color:var(--ui-color-brand-fod-primary-a);color:#fff;cursor:pointer;border:none;border-radius:4px;justify-content:center;align-items:center;height:22px;padding:0 8px;font-size:14px;display:flex}.chat-dev-tools__save-button:hover{background-color:var(--ui-color-brand-fod-dark)}.chat-dev-tools__save-button:disabled{cursor:not-allowed;background-color:#ababab}.chat-dev-tools__help-text{color:#767676;margin-top:4px;font-size:12px;line-height:1.3}.chat-dev-tools__help-text small{color:#888;margin-top:2px;display:inline-block}.chat-dev-tools__info-grid{flex-direction:column;gap:8px;margin-bottom:8px;display:flex}.chat-dev-tools__info-item{flex-direction:column;font-size:14px;display:flex}@media (min-width:600px){.chat-dev-tools__info-item{flex-direction:row;align-items:flex-start}}.chat-dev-tools__info-label{color:#555;min-width:110px;margin-right:8px;font-weight:600}@media (min-width:600px){.chat-dev-tools__info-label{flex-shrink:0}}.chat-dev-tools__info-value{word-break:break-all;flex-wrap:wrap;align-items:center;gap:8px;font-family:Monaco,Menlo,Ubuntu Mono,monospace;display:flex}.chat-dev-tools__warning{color:#e65100;background-color:rgba(255,152,0,.1);border-left:3px solid #ff9800;border-radius:4px;padding:4px 8px;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:12px}.chat-dev-tools__copy-button{cursor:pointer;color:#555;background-color:#f0f0f0;border:1px solid #ddd;border-radius:4px;padding:2px 6px;font-size:12px}.chat-dev-tools__copy-button:hover{background-color:#e0e0e0}.chat-dev-tools__notification{color:#fff;z-index:100;background-color:rgba(0,0,0,.7);border-radius:4px;padding:8px 16px;font-size:14px;animation:.3s ease-out forwards slide-up;position:absolute;bottom:0;left:50%;transform:translate(-50%)translateY(100%)}@keyframes slide-up{0%{opacity:0;transform:translate(-50%)translateY(100%)}to{opacity:1;transform:translate(-50%)translateY(-8px)}}.chat-dev-tools__select-wrapper{width:100%;margin-bottom:8px;position:relative}.chat-dev-tools__select-wrapper:after{content:"▼";pointer-events:none;color:#666;font-size:12px;position:absolute;top:50%;right:10px;transform:translateY(-50%)}.chat-dev-tools__select{-webkit-appearance:none;appearance:none;cursor:pointer;background-color:#fff;border:1px solid #ddd;border-radius:4px;width:100%;padding:8px 12px;font-size:14px}.chat-dev-tools__select:focus{border-color:#07f;outline:none;box-shadow:0 0 0 2px rgba(0,119,255,.1)}.chat-dev-tools__select optgroup{padding:4px 0;font-style:normal;font-weight:700}.chat-dev-tools__select option{padding:4px 0}.chat-dev-tools__slider-container{margin:12px 0}.chat-dev-tools__slider-label{color:#767676;flex-direction:column;gap:4px;font-size:14px;font-weight:600;display:flex}.chat-dev-tools__slider{-webkit-appearance:none;background:#e0e0e0;border-radius:3px;outline:none;width:100%;height:6px}.chat-dev-tools__slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:var(--ui-color-brand-fod-primary-a);cursor:pointer;border-radius:50%;width:18px;height:18px}.chat-dev-tools__slider::-moz-range-thumb{background:var(--ui-color-brand-fod-primary-a);cursor:pointer;border:none;border-radius:50%;width:18px;height:18px}.chat-dev-tools__input-label{color:#767676;align-items:center;gap:8px;width:100%;margin-bottom:8px;font-size:14px;font-weight:600;display:flex}.chat-dev-tools__number-input{color:#333;background-color:#e5e5e5;border:1px solid #e0e0e0;border-radius:4px;width:100px;padding:6px 8px;font-size:14px}.chat-dev-tools__number-input:focus{border-color:var(--ui-color-brand-fod-primary-a);box-shadow:0 0 0 2px var(--ui-color-brand-fod-alpha);outline:none}.chat-dev-tools__activity-input-wrapper{flex:1;align-items:center;gap:8px;width:100%;display:flex}.chat-dev-tools__activity-combobox{flex:1;min-width:0}.chat-dev-tools__activity-combobox .activity-combobox__input{color:#333;background-color:#e5e5e5;border:1px solid #e0e0e0;border-radius:4px;width:100%;padding:8px 32px 8px 12px;font-size:14px;line-height:1.4}.chat-dev-tools__activity-combobox .activity-combobox__input:focus{border-color:var(--ui-color-brand-fod-primary-a);box-shadow:0 0 0 2px var(--ui-color-brand-fod-alpha);outline:none}.chat-dev-tools__activity-combobox .activity-combobox__input::placeholder{color:#ababab}.chat-dev-tools__activity-combobox .activity-combobox__toggle{color:#767676}.chat-dev-tools__activity-combobox .activity-combobox__toggle:hover{color:#333}.chat-dev-tools__activity-combobox .activity-combobox__toggle:focus{color:var(--ui-color-brand-fod-primary-a)}.chat-dev-tools__activity-combobox .activity-combobox__dropdown{background:#e5e5e5;border:1px solid #e0e0e0;box-shadow:0 2px 8px rgba(0,0,0,.1)}.chat-dev-tools__activity-combobox .activity-combobox__option{color:#333;border-bottom-color:#e0e0e0}.chat-dev-tools__activity-combobox .activity-combobox__option:hover,.chat-dev-tools__activity-combobox .activity-combobox__option--highlighted{background-color:rgba(0,123,255,.1)}.chat-dev-tools__activity-combobox .activity-combobox__option[aria-selected=true]{background-color:var(--ui-color-brand-fod-primary-a);color:#fff}.chat-dev-tools__activity-combobox .activity-combobox__no-options{color:#767676}.chat-dev-tools__refresh-button{background-color:var(--ui-color-brand-fod-primary-a);color:#fff;cursor:pointer;border:none;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:16px;font-weight:700;transition:background-color .2s;display:flex}.chat-dev-tools__refresh-button:hover{background-color:var(--ui-color-brand-fod-dark)}.chat-dev-tools__refresh-button:disabled{cursor:not-allowed;background-color:#ababab}.chat-dev-tools__refresh-button:focus{box-shadow:0 0 0 2px var(--ui-color-brand-fod-alpha);outline:none}.chat-dev-tools__update-button{background-color:var(--ui-color-brand-fod-primary-a);color:#fff;cursor:pointer;border:none;border-radius:4px;justify-content:center;align-items:center;height:32px;margin-top:8px;padding:0 16px;font-size:14px;font-weight:500;transition:background-color .2s;display:flex}.chat-dev-tools__update-button:hover{background-color:var(--ui-color-brand-fod-dark)}.chat-dev-tools__update-button:disabled{cursor:not-allowed;background-color:#ababab}.chat-dev-tools__update-button:focus{box-shadow:0 0 0 2px var(--ui-color-brand-fod-alpha);outline:none}.chat-dev-tools__regenerate-button{background-color:var(--ui-color-brand-fod-primary-a);color:#fff;cursor:pointer;border:none;border-radius:4px;justify-content:center;align-items:center;width:100%;height:36px;padding:0 16px;font-size:14px;font-weight:500;transition:background-color .2s;display:flex}.chat-dev-tools__regenerate-button:hover:not(:disabled){background-color:var(--ui-color-brand-fod-dark)}.chat-dev-tools__regenerate-button:disabled{cursor:not-allowed;opacity:.7;background-color:#ababab}.chat-dev-tools__regenerate-button:focus{box-shadow:0 0 0 2px var(--ui-color-brand-fod-alpha);outline:none}.chat-dev-tools__error-text{color:#e04949;background-color:rgba(246,104,104,.1);border:1px solid rgba(246,104,104,.3);border-radius:4px;margin-top:8px;padding:8px 12px;font-size:12px;line-height:1.4}.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-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%)}}.tutor-usage-stat-card{gap:var(--ui-space-xs);padding:var(--ui-space-xs)var(--ui-space-md);border:var(--ui-stroke-1)solid var(--ui-color-stroke-primary);border-radius:var(--ui-radius-xl);background-color:var(--ui-color-bg-container-primary);flex-direction:column;display:flex}.tutor-usage-stat-card__header{justify-content:space-between;align-items:center;display:flex}.tutor-usage-stat-card__icon{width:var(--ui-size-5xl);height:var(--ui-size-5xl);border-radius:var(--ui-radius-xl);justify-content:center;align-items:center;display:flex}.tutor-usage-stat-card__icon--purple{background-color:var(--ui-color-purple-100)}.tutor-usage-stat-card__icon--purple .icon--color-default{color:var(--ui-color-purple-500)}.tutor-usage-stat-card__icon--blue{background-color:var(--ui-color-blue-100)}.tutor-usage-stat-card__icon--blue .icon--color-default{color:var(--ui-color-blue-500)}.tutor-usage-stat-card__icon--orange{background-color:var(--ui-color-orange-100)}.tutor-usage-stat-card__icon--orange .icon--color-default{color:var(--ui-color-orange-500)}.tutor-usage-stat-card__icon--green{background-color:var(--ui-color-green-100)}.tutor-usage-stat-card__icon--green .icon--color-default{color:var(--ui-color-green-500)}.tutor-usage-stat-card__info-icon{cursor:help;opacity:.5;align-items:center;display:flex}.tutor-usage-stat-card__info-icon:hover{opacity:.8}.tutor-usage-stat-card__label{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-14);font-weight:var(--ui-font-weight-medium);line-height:var(--ui-line-height-20);color:var(--ui-color-text-secondary);margin:0;margin-top:var(--ui-space-xs)}.tutor-usage-stat-card__value{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-18);font-weight:var(--ui-font-weight-bold);line-height:var(--ui-line-height-26);color:var(--ui-color-text-default);margin:0}.tutor-usage-stat-card__subtitle{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-14);font-weight:var(--ui-font-weight-medium);line-height:var(--ui-line-height-20);color:var(--ui-color-text-tertiary);margin:0}.tutor-usage-stat-card__trend{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-semibold);line-height:var(--ui-line-height-18);margin:0;margin-top:var(--ui-space-xs);display:flex}.tutor-usage-stat-card__trend .icon__wrapper{margin-right:var(--ui-space-xs)}.tutor-usage-stat-card__trend .icon__wrapper svg{width:var(--ui-size-xxl);height:var(--ui-size-xxl)}.tutor-usage-stat-card__trend--positive,.tutor-usage-stat-card__trend--positive .icon--color-success,.tutor-usage-stat-card__trend--positive .tutor-usage-stat-card__trend-text{color:var(--ui-color-green-600)}.tutor-usage-stat-card__trend--negative,.tutor-usage-stat-card__trend--negative .icon--color-red,.tutor-usage-stat-card__trend--negative .tutor-usage-stat-card__trend-text{color:var(--ui-color-red-600)}.tutor-usage-stat-card__trend--neutral,.tutor-usage-stat-card__trend--neutral .tutor-usage-stat-card__trend-text{color:var(--ui-color-text-tertiary)}.tutor-usage-stat-card__trend-text{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-12);font-weight:var(--ui-font-weight-semibold);color:var(--ui-color-text-tertiary);margin-left:var(--ui-space-xxs)}.tutor-usage-stat-card__trend-text--na{margin-left:0}.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}.practice-lesson-selection-dialog{--practice-lesson-selection-dialog-tree-max-height:20rem;--practice-lesson-selection-dialog-checkbox-size:1.25rem;--practice-lesson-selection-dialog-mascot-size:3.5rem;--practice-lesson-selection-dialog-lesson-indent:calc(var(--ui-space-md) + var(--practice-lesson-selection-dialog-checkbox-size) + var(--ui-space-sm))}.practice-lesson-selection-dialog__content{gap:var(--ui-space-md);padding:0 0 var(--ui-space-md)0;flex-direction:column;display:flex}.practice-lesson-selection-dialog__section{gap:var(--ui-space-xxs);flex-direction:column;display:flex}.practice-lesson-selection-dialog__section-label{font-family:var(--ui-font-family-body);font-weight:var(--ui-font-weight-bold);font-size:var(--ui-font-size-14);line-height:var(--ui-line-height-20);color:var(--ui-color-neutral-grey-500);text-transform:uppercase}.practice-lesson-selection-dialog__section-subtitle{font-family:var(--ui-font-family-body);font-weight:var(--ui-font-weight-medium);font-size:var(--ui-font-size-14);line-height:var(--ui-line-height-20);color:var(--ui-color-text-default)}.practice-lesson-selection-dialog__box{border:var(--ui-stroke-1)solid var(--ui-color-neutral-grey-300);border-radius:var(--ui-radius-xl);overflow:hidden}.practice-lesson-selection-dialog__search{padding:var(--ui-space-sm)var(--ui-space-md);background-color:var(--ui-color-neutral-grey-100);border-bottom:var(--ui-stroke-1)solid var(--ui-color-neutral-grey-300);position:relative}.practice-lesson-selection-dialog__search-input{padding:var(--ui-space-xs)var(--ui-space-xxl)var(--ui-space-xs)var(--ui-space-sm);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);background-color:var(--ui-color-neutral-white);border:var(--ui-stroke-1)solid var(--ui-color-neutral-grey-400);border-radius:var(--ui-radius-xl);outline:none;width:100%;transition:border-color .2s}.practice-lesson-selection-dialog__search-input::placeholder{color:var(--ui-color-neutral-grey-500)}.practice-lesson-selection-dialog__search-input:focus{border-color:var(--ui-color-brand-fod-primary-a)}.practice-lesson-selection-dialog__search-icon{top:50%;right:var(--ui-space-lg);color:var(--ui-color-neutral-grey-500);cursor:pointer;background-color:transparent;border:none;justify-content:center;align-items:center;padding:0;display:inline-flex;position:absolute;transform:translateY(-50%)}.practice-lesson-selection-dialog__tree{max-height:var(--practice-lesson-selection-dialog-tree-max-height);margin:0;padding:0;list-style:none;overflow-y:auto}.practice-lesson-selection-dialog__unit{border-bottom:var(--ui-stroke-1)solid var(--ui-color-neutral-grey-300)}.practice-lesson-selection-dialog__unit:last-child{border-bottom:none}.practice-lesson-selection-dialog__unit-row{align-items:center;gap:var(--ui-space-sm);padding:var(--ui-space-xs)var(--ui-space-md);display:flex}.practice-lesson-selection-dialog__unit-main{justify-content:space-between;align-items:center;gap:var(--ui-space-md);text-align:left;cursor:pointer;background-color:transparent;border:none;flex:1;min-width:0;padding:0;display:flex}.practice-lesson-selection-dialog__unit-main--disabled{cursor:default}.practice-lesson-selection-dialog__unit-main--disabled .practice-lesson-selection-dialog__unit-name{color:var(--ui-color-neutral-grey-400)}.practice-lesson-selection-dialog__unit-info{gap:var(--ui-space-xxs);flex-direction:column;min-width:0;display:flex}.practice-lesson-selection-dialog__unit-name{font-family:var(--ui-font-family-body);font-weight:var(--ui-font-weight-bold);font-size:var(--ui-font-size-16);line-height:var(--ui-line-height-24);color:var(--ui-color-text-default);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.practice-lesson-selection-dialog__unit-counter{font-family:var(--ui-font-family-body);font-weight:var(--ui-font-weight-bold);font-size:var(--ui-font-size-14);line-height:var(--ui-line-height-20);color:var(--ui-color-neutral-grey-500);text-transform:uppercase}.practice-lesson-selection-dialog__unit-aside{align-items:center;gap:var(--ui-space-xxs);flex-shrink:0;display:inline-flex}.practice-lesson-selection-dialog__no-content-label{font-family:var(--ui-font-family-body);font-weight:var(--ui-font-weight-bold);font-size:var(--ui-font-size-12);line-height:var(--ui-line-height-16);color:var(--ui-color-neutral-grey-500);text-transform:uppercase;white-space:nowrap;flex-shrink:0}.practice-lesson-selection-dialog__chevron{color:var(--ui-color-neutral-grey-600);align-items:center;display:inline-flex}.practice-lesson-selection-dialog__lessons{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.practice-lesson-selection-dialog__lesson{align-items:center;gap:var(--ui-space-xs);padding:var(--ui-space-xs);padding-left:var(--practice-lesson-selection-dialog-lesson-indent);border-radius:var(--ui-radius-md-lg);cursor:pointer;display:flex}.practice-lesson-selection-dialog__lesson:hover{background-color:var(--ui-color-neutral-grey-100)}.practice-lesson-selection-dialog__lesson--disabled{cursor:default}.practice-lesson-selection-dialog__lesson--disabled:hover{background-color:transparent}.practice-lesson-selection-dialog__lesson--disabled .practice-lesson-selection-dialog__lesson-name{color:var(--ui-color-neutral-grey-500)}.practice-lesson-selection-dialog__lesson-name{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-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.practice-lesson-selection-dialog__lesson-aside{flex-shrink:0;align-items:center;display:inline-flex}.practice-lesson-selection-dialog__checkbox{width:var(--practice-lesson-selection-dialog-checkbox-size);height:var(--practice-lesson-selection-dialog-checkbox-size);color:var(--ui-color-neutral-white);background-color:var(--ui-color-neutral-white);border:var(--ui-stroke-2)solid var(--ui-color-neutral-grey-400);border-radius:var(--ui-radius-md-lg);cursor:pointer;flex-shrink:0;justify-content:center;align-items:center;padding:0;display:inline-flex}.practice-lesson-selection-dialog__checkbox--checked,.practice-lesson-selection-dialog__checkbox--indeterminate{background-color:var(--ui-color-brand-fod-primary-a);border-color:var(--ui-color-brand-fod-primary-a)}.practice-lesson-selection-dialog__checkbox--disabled{background-color:var(--ui-color-neutral-grey-200);border-color:var(--ui-color-neutral-grey-400);cursor:default}.practice-lesson-selection-dialog__checkbox-dash{height:var(--ui-stroke-2);background-color:var(--ui-color-neutral-white);border-radius:var(--ui-radius-sm);width:.625rem}.practice-lesson-selection-dialog__actions{justify-content:flex-end;align-items:center;gap:var(--ui-space-md);padding:var(--ui-space-sm)var(--ui-space-md);background-color:var(--ui-color-neutral-grey-100);border-top:var(--ui-stroke-1)solid var(--ui-color-neutral-grey-300);display:flex}.practice-lesson-selection-dialog__actions .button{flex:none;width:auto;min-width:0}.practice-lesson-selection-dialog__actions .button:disabled{opacity:.5;background-color:transparent}.practice-lesson-selection-dialog__actions .button--color-primary-outlined{background-color:var(--ui-color-neutral-white);padding-top:0!important;padding-bottom:0!important}.practice-lesson-selection-dialog__state{padding:var(--ui-space-lg);font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-16);line-height:var(--ui-line-height-24);color:var(--ui-color-text-secondary);text-align:center;justify-content:center;align-items:center;display:flex}.practice-lesson-selection-dialog__warning{align-items:center;gap:var(--ui-space-xs);padding:var(--ui-space-md)var(--ui-space-xs);background-color:var(--ui-color-blue-100);border:var(--ui-stroke-1)solid var(--ui-color-blue-300);border-radius:var(--ui-radius-xl);display:flex}.practice-lesson-selection-dialog__warning-mascot{width:var(--practice-lesson-selection-dialog-mascot-size);height:var(--practice-lesson-selection-dialog-mascot-size);background-image:var(--tangerine-ai-bot-help);background-position:50%;background-repeat:no-repeat;background-size:contain;flex-shrink:0}.practice-lesson-selection-dialog__warning-text{font-family:var(--ui-font-family-body);font-size:var(--ui-font-size-16);line-height:var(--ui-line-height-24);color:var(--ui-color-neutral-grey-900)}.practice-lesson-selection-dialog__footer-count{font-family:var(--ui-font-family-body);font-weight:var(--ui-font-weight-bold);font-size:var(--ui-font-size-16);line-height:var(--ui-line-height-26);color:var(--ui-color-text-default)}.practice-status-chip{align-items:center;gap:var(--ui-space-xs);padding:var(--ui-space-xxs)var(--ui-space-sm);font-family:var(--ui-font-family-body);font-weight:var(--ui-font-weight-bold);font-size:var(--ui-font-size-14);line-height:var(--ui-line-height-20);white-space:nowrap;border-radius:var(--ui-radius-xxl);flex-shrink:0;display:inline-flex}.practice-status-chip__emoji{font-size:var(--ui-font-size-20);line-height:1}.practice-status-chip--mastered{color:var(--ui-color-green-800);background-color:var(--ui-color-green-200)}.practice-status-chip--in-progress{color:var(--ui-color-blue-800);background-color:var(--ui-color-blue-200)}.practice-status-chip--not-started{color:var(--ui-color-neutral-grey-800);background-color:var(--ui-color-neutral-grey-200)}.practice-status-chip--blocked{color:var(--ui-color-red-800);background-color:var(--ui-color-red-200)}