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hsl(var(--tp-ring)/.5)}.tp-input:disabled{cursor:not-allowed;opacity:.5}.tp-input--sm{width:5rem}.tp-input--md{width:11.25rem}.tp-input--lg{width:550px;max-width:100%}.tp-input--readonly{pointer-events:none}.tp-input::placeholder{color:hsl(var(--tp-muted-foreground))}.tp-select{box-sizing:border-box;height:2.25rem;padding:.25rem .75rem;font-family:inherit;font-size:var(--tp-font-size-sm);line-height:1.5;color:hsl(var(--tp-foreground));background-color:transparent;border:1px solid hsl(var(--tp-input));border-radius:calc(var(--tp-radius) - 2px);box-shadow:var(--tp-shadow-sm);transition:border-color var(--tp-transition-fast),box-shadow var(--tp-transition-fast)}.tp-select:focus-visible{outline:none;border-color:hsl(var(--tp-ring));box-shadow:0 0 0 3px hsl(var(--tp-ring)/.5)}.tp-select:disabled{cursor:not-allowed;opacity:.5}.tp-select--sm{width:5rem}.tp-select--md{width:11.25rem}.tp-select--lg{width:550px;max-width:100%}.tp-select--readonly{pointer-events:none}.tp-select{display:inline-flex;align-items:center;justify-content:space-between;gap:var(--tp-spacing-sm);text-align:left;white-space:nowrap;cursor:pointer}.tp-select[data-placeholder]{color:hsl(var(--tp-muted-foreground))}.tp-select>span{overflow:hidden;text-overflow:ellipsis}.tp-select__icon{flex-shrink:0;width:1rem;height:1rem;opacity:.5}.tp-select__content{z-index:var(--tp-z-popover);box-sizing:border-box;min-width:var(--radix-select-trigger-width);max-height:var(--radix-select-content-available-height);overflow:hidden;font-family:var(--tp-font-family);color:hsl(var(--tp-popover-foreground));background-color:hsl(var(--tp-popover));border:1px solid hsl(var(--tp-border));border-radius:calc(var(--tp-radius) - 2px);box-shadow:var(--tp-shadow-md);animation:tp-dialog-fade-in var(--tp-transition-fast)}.tp-select__viewport{padding:var(--tp-spacing-xs)}.tp-select__item{position:relative;display:flex;align-items:center;padding:.375rem 2rem .375rem .5rem;font-size:var(--tp-font-size-sm);border-radius:calc(var(--tp-radius) - 4px);cursor:default;-webkit-user-select:none;user-select:none;outline:none}.tp-select__item[data-highlighted]{background-color:hsl(var(--tp-accent));color:hsl(var(--tp-accent-foreground))}.tp-select__item[data-disabled]{pointer-events:none;opacity:.5}.tp-select__item-indicator{position:absolute;right:.5rem;display:flex;align-items:center;justify-content:center}.tp-select__item-check{width:1rem;height:1rem}@keyframes tp-dialog-fade-in{0%{opacity:0}to{opacity:1}}@keyframes tp-dialog-zoom-in{0%{opacity:0;transform:translate(-50%,-50%) scale(.95)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.tp-dialog__overlay{position:fixed;inset:0;z-index:var(--tp-z-modal-backdrop);background-color:#00000080;animation:tp-dialog-fade-in var(--tp-transition-normal)}.tp-dialog__content{position:fixed;top:50%;left:50%;z-index:var(--tp-z-modal);display:grid;gap:var(--tp-spacing-md);box-sizing:border-box;width:calc(100% - 2rem);max-width:32rem;padding:var(--tp-spacing-lg);transform:translate(-50%,-50%);font-family:var(--tp-font-family);color:hsl(var(--tp-foreground));background-color:hsl(var(--tp-background));border:1px solid hsl(var(--tp-border));border-radius:var(--tp-radius);box-shadow:var(--tp-shadow-lg);animation:tp-dialog-zoom-in var(--tp-transition-normal)}.tp-dialog__content:focus{outline:none}.tp-dialog__title{margin:0;font-size:var(--tp-font-size-lg);font-weight:600;line-height:1.25}.tp-dialog__close{position:absolute;top:var(--tp-spacing-md);right:var(--tp-spacing-md);display:flex;align-items:center;justify-content:center;padding:0;border:none;background:transparent;color:inherit;opacity:.7;border-radius:calc(var(--tp-radius) - 4px);cursor:pointer;transition:all var(--tp-transition-normal)}.tp-dialog__close:focus-visible{outline:none;box-shadow:0 0 0 2px hsl(var(--tp-background)),0 0 0 4px hsl(var(--tp-ring))}.tp-dialog__close:disabled,.tp-dialog__close[aria-disabled=true]{opacity:.5;cursor:not-allowed;pointer-events:none}.tp-dialog__close:hover{opacity:1}.tp-dialog__close-icon{width:1rem;height:1rem}.tp-tooltip{z-index:var(--tp-z-tooltip);padding:.375rem .75rem;font-family:var(--tp-font-family);font-size:var(--tp-font-size-xs);line-height:1.25;color:hsl(var(--tp-primary-foreground));background-color:hsl(var(--tp-primary));border-radius:calc(var(--tp-radius) - 2px);animation:tp-dialog-fade-in var(--tp-transition-fast)}.tp-error{--tp-error-bg: 0 86% 97%;--tp-error-border: 0 96% 89%;--tp-error-accent-bg: 0 93% 94%;--tp-error-heading: 0 70% 35%;--tp-error-text: 0 74% 42%;--tp-error-icon: 0 91% 71%;box-sizing:border-box;padding:var(--tp-spacing-md);font-size:var(--tp-font-size-sm);color:hsl(var(--tp-error-text));background-color:hsl(var(--tp-error-bg));border:1px solid hsl(var(--tp-error-border));border-radius:var(--tp-radius)}.tp-error--widget{margin:var(--tp-spacing-sm)}.tp-error--renderer{--tp-error-bg: 48 100% 96%;--tp-error-border: 48 97% 77%;--tp-error-accent-bg: 48 96% 89%;--tp-error-heading: 28 73% 26%;--tp-error-text: 26 90% 37%;--tp-error-icon: 28 73% 26%}.tp-error__layout{display:flex;align-items:flex-start;gap:.75rem}.tp-error__icon-wrap{flex-shrink:0;color:hsl(var(--tp-error-icon))}.tp-error--renderer .tp-error__icon-wrap{display:flex;align-items:center;justify-content:center;width:1.5rem;height:1.5rem;margin-top:.125rem;border-radius:9999px;background-color:hsl(var(--tp-error-border))}.tp-error__icon{display:block;width:1.25rem;height:1.25rem}.tp-error--renderer .tp-error__icon{width:1rem;height:1rem}.tp-error__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:var(--tp-spacing-sm)}.tp-error__heading{margin:0;font-size:var(--tp-font-size-sm);font-weight:600;color:hsl(var(--tp-error-heading))}.tp-error__message{margin:0;line-height:1.6}.tp-error__message p{margin:0}.tp-error__tips{margin:0;padding-left:1.25rem;list-style:disc;line-height:1.6}.tp-error__actions{display:flex;flex-wrap:wrap;align-items:center;gap:var(--tp-spacing-sm)}.tp-error__button{display:inline-flex;align-items:center;gap:.375rem;padding:.25rem .75rem;font-family:inherit;font-size:var(--tp-font-size-sm);font-weight:500;color:hsl(var(--tp-error-heading));background-color:hsl(var(--tp-error-accent-bg));border:1px solid hsl(var(--tp-error-border));border-radius:calc(var(--tp-radius) - 4px);cursor:pointer;transition:all var(--tp-transition-normal)}.tp-error__button:focus-visible{outline:none;box-shadow:0 0 0 2px hsl(var(--tp-background)),0 0 0 4px hsl(var(--tp-ring))}.tp-error__button:disabled,.tp-error__button[aria-disabled=true]{opacity:.5;cursor:not-allowed;pointer-events:none}.tp-error__button:hover{filter:brightness(.96)}.tp-error__button--default,.tp-error__button--danger{background-color:#fff}.tp-error__button--secondary{background-color:transparent}.tp-error__button--danger{--tp-error-heading: 0 70% 35%;border-color:#fca6a6}.tp-error__button-icon{display:flex;align-items:center;justify-content:center;width:1rem;height:1rem}.tp-error__details{font-size:var(--tp-font-size-xs)}.tp-error--renderer .tp-error__details{padding:var(--tp-spacing-sm);background-color:hsl(var(--tp-error-accent-bg));border:1px solid hsl(var(--tp-error-border));border-radius:calc(var(--tp-radius) - 2px)}.tp-error__details-toggle{padding:0;font:inherit;font-weight:500;color:inherit;background:none;border:none;cursor:pointer}.tp-error--widget .tp-error__details-toggle{font-size:var(--tp-font-size-sm)}.tp-error__details-content{margin-top:var(--tp-spacing-sm);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.tp-error--widget .tp-error__details-content{padding:var(--tp-spacing-sm);background-color:hsl(var(--tp-error-accent-bg));border-radius:calc(var(--tp-radius) - 4px)}.tp-error__details-content[hidden]{display:none}.tp-error__details-label{font-weight:600;margin-top:var(--tp-spacing-sm)}.tp-error__details-label:first-child{margin-top:0}.tp-error__pre{white-space:pre-wrap;overflow-wrap:anywhere}.teacharium-player{font-family:var(--tp-font-family);color:hsl(var(--tp-foreground));background-color:hsl(var(--tp-background));height:100%;display:flex;flex-direction:row;box-sizing:border-box;line-height:1.5}.teacharium-player *,.teacharium-player *:before,.teacharium-player *:after{box-sizing:border-box}.tp-main{flex:1;display:flex;flex-direction:column;background-color:#fff;min-width:0}.tp-header{flex-shrink:0;border-bottom:1px solid hsl(var(--tp-border))}.tp-content{flex:1;overflow-y:auto;overflow-x:clip;display:flex;justify-content:center}.tp-content__inner{width:100%;max-width:72rem;padding:var(--tp-spacing-md);padding-top:var(--tp-spacing-md);padding-bottom:var(--tp-spacing-md)}@media(max-width:768px){.tp-content__inner{padding:0}}.tp-start-overlay{flex:1;display:flex;align-items:center;justify-content:center}.tp-start-button{padding:var(--tp-spacing-md) var(--tp-spacing-xl);font-size:var(--tp-font-size-lg);font-weight:600;color:#fff;background-color:#2563eb;border-radius:var(--tp-radius);cursor:pointer;transition:all var(--tp-transition-normal)}.tp-start-button:focus-visible{outline:none;box-shadow:0 0 0 2px hsl(var(--tp-background)),0 0 0 4px hsl(var(--tp-ring))}.tp-start-button:disabled,.tp-start-button[aria-disabled=true]{opacity:.5;cursor:not-allowed;pointer-events:none}.tp-start-button{box-shadow:var(--tp-shadow-lg)}.tp-start-button:hover{background-color:#1451d7}.tp-no-content{height:100%;display:flex;align-items:center;justify-content:center}.tp-no-content__inner{text-align:center}.tp-no-content__title{font-size:var(--tp-font-size-2xl);font-weight:700;margin-bottom:var(--tp-spacing-sm)}.tp-no-content__message{color:hsl(var(--tp-muted-foreground))}.tp-footer-wrapper{flex-shrink:0}.tp-step-preview{min-height:100%}.tp-layout-empty{position:relative;z-index:1;padding:var(--tp-spacing-xl);text-align:center;color:hsl(var(--tp-muted-foreground));border:2px dashed hsl(var(--tp-border));border-radius:var(--tp-radius)}.tp-mdx-error{color:hsl(var(--tp-destructive));white-space:pre-wrap}.tp-badge{display:inline-flex;align-items:center;padding:.125rem .625rem;font-size:var(--tp-font-size-xs);font-weight:600;color:hsl(var(--tp-primary-foreground));background-color:hsl(var(--tp-primary));border-radius:calc(var(--tp-radius) - 2px)}.tp-footer{background-color:hsl(var(--tp-background));border-top:1px solid hsl(var(--tp-border))}.tp-footer--hidden{background-color:transparent;border-top:none}.tp-footer__content{display:flex;align-items:center;justify-content:space-between;padding:var(--tp-spacing-lg)}.tp-footer__nav{display:flex;align-items:center}.tp-footer__center{display:flex;align-items:center;gap:var(--tp-spacing-lg)}.tp-footer__actions{display:flex;align-items:center;gap:var(--tp-spacing-sm)}.tp-progress{display:flex;align-items:center;gap:.75rem}.tp-progress__section{border:2px solid hsl(var(--tp-primary));border-radius:var(--tp-radius);padding:var(--tp-spacing-sm) .75rem;display:flex;align-items:center;gap:.375rem;transition:all var(--tp-transition-slow);background-color:hsl(var(--tp-primary)/.1)}.tp-progress__section-dot{width:1rem;height:1rem;border-radius:9999px;transition:all var(--tp-transition-slow)}.tp-progress__section-dot--completed{background-color:hsl(var(--tp-primary))}.tp-progress__section-dot--upcoming{background-color:hsl(var(--tp-background));border:2px solid hsl(var(--tp-muted-foreground)/.3)}.tp-progress__step{width:.5rem;height:.5rem;border-radius:9999px;transition:all var(--tp-transition-normal)}.tp-progress__step--current{background-color:hsl(var(--tp-primary));border:1px solid hsl(var(--tp-primary))}.tp-progress__step--completed{background-color:hsl(var(--tp-primary))}.tp-progress__step--upcoming{background-color:hsl(var(--tp-background));border:1px solid hsl(var(--tp-muted-foreground)/.6)}.tp-timer{display:flex;align-items:center;gap:var(--tp-spacing-sm);padding:var(--tp-spacing-xs) .75rem;border-radius:calc(var(--tp-radius) - 2px);font-size:var(--tp-font-size-sm);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;background-color:hsl(var(--tp-muted));color:hsl(var(--tp-muted-foreground))}.tp-timer--urgent{background-color:hsl(var(--tp-destructive)/.1);color:hsl(var(--tp-destructive));border:1px solid hsl(var(--tp-destructive)/.2)}.tp-timer__icon{width:1rem;height:1rem}.tp-footer--review .tp-footer__review-content{display:flex;align-items:center;justify-content:center;gap:var(--tp-spacing-lg);padding:var(--tp-spacing-lg)}.tp-feedback{position:fixed;left:0;right:0;z-index:var(--tp-z-fixed);pointer-events:none}.tp-feedback__container{pointer-events:auto}.tp-feedback__wrapper{padding:0 var(--tp-spacing-md)}.tp-feedback__card{margin:0 auto;max-width:42rem;border-radius:var(--tp-radius);border:1px solid;padding:var(--tp-spacing-md);box-shadow:var(--tp-shadow-xl);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.tp-feedback__content{display:flex;align-items:flex-start;gap:.75rem}.tp-feedback__next{flex-shrink:0}.tp-feedback__icon{width:1.25rem;height:1.25rem;margin-top:.125rem;flex-shrink:0}.tp-feedback__message{flex:1;min-width:0}.tp-feedback__message p{margin:0}.tp-feedback__message p+p{margin-top:.5rem}.tp-feedback__dismiss{flex-shrink:0;height:2rem;width:2rem;padding:0;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:calc(var(--tp-radius) - 2px);cursor:pointer;transition:all var(--tp-transition-normal)}.tp-feedback__dismiss:focus-visible{outline:none;box-shadow:0 0 0 2px hsl(var(--tp-background)),0 0 0 4px hsl(var(--tp-ring))}.tp-feedback__dismiss:disabled,.tp-feedback__dismiss[aria-disabled=true]{opacity:.5;cursor:not-allowed;pointer-events:none}.tp-feedback__dismiss:hover{background-color:#0000001a}.tp-feedback__dismiss-icon{width:1rem;height:1rem}.tp-feedback--correct .tp-feedback__card{background-color:hsl(var(--tp-correct-bg));border-color:hsl(var(--tp-correct-border));color:hsl(var(--tp-correct))}.tp-feedback--incorrect .tp-feedback__card{background-color:hsl(var(--tp-incorrect-bg));border-color:hsl(var(--tp-incorrect-border));color:hsl(var(--tp-incorrect))}.tp-feedback--info .tp-feedback__card{background-color:hsl(var(--tp-info-bg));border-color:hsl(var(--tp-info-border));color:hsl(var(--tp-info))}.tp-feedback--hint .tp-feedback__card{background-color:hsl(var(--tp-hint-bg));border-color:hsl(var(--tp-hint-border));color:hsl(var(--tp-hint))}.tp-inline-feedback{margin-top:var(--tp-spacing-sm);padding:var(--tp-spacing-sm);border-radius:calc(var(--tp-radius) - 2px);font-size:var(--tp-font-size-sm);border:1px solid}.tp-inline-feedback--correct{background-color:hsl(var(--tp-correct-bg));border-color:hsl(var(--tp-correct-border));color:hsl(var(--tp-correct))}.tp-inline-feedback--incorrect{background-color:hsl(var(--tp-incorrect-bg));border-color:hsl(var(--tp-incorrect-border));color:hsl(var(--tp-incorrect))}.tp-rich-text-renderer{position:relative;padding:var(--tp-spacing-sm)}.tp-rich-text-renderer__audio{position:absolute;top:var(--tp-spacing-xs);right:var(--tp-spacing-xs);z-index:10}.tp-rich-text-renderer__audio-player{padding:var(--tp-spacing-xs);background-color:#fffc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border-radius:calc(var(--tp-radius) - 2px);box-shadow:var(--tp-shadow-sm)}.teacharium-player .rich-text-display,.teacharium-player .tp-rich-text{color:hsl(var(--tp-foreground))}.teacharium-player .rich-text-display h1,.teacharium-player .tp-rich-text h1{font-size:2.25rem;line-height:2.5rem;font-weight:700;letter-spacing:normal;margin-top:1.6em;margin-bottom:.25rem;scroll-margin-top:5rem}.teacharium-player .rich-text-display h1:first-child,.teacharium-player .tp-rich-text h1:first-child{margin-top:0}.teacharium-player .rich-text-display h2,.teacharium-player .tp-rich-text h2{font-size:1.5rem;line-height:2rem;font-weight:600;letter-spacing:-.025em;margin-top:1.4em;margin-bottom:.25rem;scroll-margin-top:5rem}.teacharium-player .rich-text-display h2:first-child,.teacharium-player .tp-rich-text h2:first-child{margin-top:0}.teacharium-player .rich-text-display h3,.teacharium-player .tp-rich-text h3{font-size:1.25rem;line-height:1.75rem;font-weight:600;letter-spacing:-.025em;margin-top:1em;margin-bottom:.25rem;scroll-margin-top:5rem}.teacharium-player .rich-text-display h3:first-child,.teacharium-player .tp-rich-text h3:first-child{margin-top:0}.teacharium-player .rich-text-display h4,.teacharium-player .tp-rich-text h4{font-size:1.125rem;line-height:1.75rem;font-weight:600;letter-spacing:-.025em;margin-top:.75em;margin-bottom:.25rem;scroll-margin-top:5rem}.teacharium-player .rich-text-display h4:first-child,.teacharium-player .tp-rich-text h4:first-child{margin-top:0}.teacharium-player .rich-text-display p,.teacharium-player .tp-rich-text p{line-height:1.5}.teacharium-player .rich-text-display p:not(:first-child),.teacharium-player .tp-rich-text p:not(:first-child){margin-top:.5rem}.teacharium-player .rich-text-display .lead,.teacharium-player .tp-rich-text .lead{font-size:1.25rem;line-height:1.75rem;color:hsl(var(--tp-muted-foreground))}.teacharium-player .rich-text-display .large,.teacharium-player .tp-rich-text .large{font-size:1.125rem;line-height:1.75rem;font-weight:600}.teacharium-player .rich-text-display small,.teacharium-player .tp-rich-text small{font-size:.875rem;line-height:1.25rem;font-weight:500}.teacharium-player .rich-text-display .muted,.teacharium-player .tp-rich-text .muted{font-size:.875rem;line-height:1.25rem;color:hsl(var(--tp-muted-foreground))}.teacharium-player .rich-text-display code:not(pre code),.teacharium-player .tp-rich-text code:not(pre code){position:relative;border-radius:.25rem;background-color:hsl(var(--tp-muted));padding:.2rem .3rem;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:.875rem;font-weight:600}.teacharium-player .rich-text-display pre,.teacharium-player .tp-rich-text pre{position:relative;border-radius:.25rem;background-color:hsl(var(--tp-muted));padding:1rem;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:.875rem;font-weight:600;overflow-x:auto}.teacharium-player .rich-text-display ul,.teacharium-player .tp-rich-text ul{margin-top:.5rem;margin-bottom:.5rem;margin-left:1.5rem;list-style-type:disc}.teacharium-player .rich-text-display ul>li,.teacharium-player .tp-rich-text 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