.popover-inside[data-v-01bfd6d8]{max-width:320px}body.apple .dismiss-button[data-v-01bfd6d8]{margin-top:.75rem}.popover-inside[data-v-f8e00cd8]{max-width:320px}.feedback-option[data-v-1af10b21]{border-radius:.125rem;justify-content:space-between;align-items:center;width:100%;height:2.5rem;margin:3px 0;padding-left:.5rem;padding-right:.5rem;display:flex}.feedback-option .title[data-v-1af10b21]{margin-right:.25rem;line-height:1}.feedback-option .faint[data-v-1af10b21]{white-space:nowrap}.feedback-option[data-v-1af10b21]:hover{opacity:.75}.feedback-option[data-v-1af10b21]:hover:active{opacity:.5;transform:scale(.95)}.report-title[data-v-d32929bf]{min-width:300px;max-width:100%;margin-bottom:.5rem;font-size:1.875rem}.subtitle[data-v-d32929bf]{margin-bottom:.25rem;font-size:1.125rem}.ui-textarea[data-v-d32929bf]{height:6rem;font-size:1rem}.finish-buttons[data-v-d32929bf]{text-align:center;margin:2px auto;font-size:1.5rem}.finish-buttons .ui-button+.ui-button[data-v-d32929bf]{margin-left:.25rem}.nav-button[data-v-29661b5f]{font-size:1.25rem}.nav-menu-list[data-v-29661b5f]{letter-spacing:.025em;border-radius:.125rem;width:9rem;margin-top:-.75rem;margin-right:1.5rem;position:absolute;right:0;box-shadow:0 1px 4px #0006}.nav-menu-list .nav-button[data-v-29661b5f]{text-align:left;border-radius:0;width:100%;height:4rem;padding-left:.75rem;display:block;border-bottom-style:solid!important;border-bottom-width:1px!important}.nav-menu-list .nav-button[data-v-29661b5f]:last-child{border:none!important}.nav-menu-list .selected[data-v-29661b5f]{cursor:default;font-weight:600;background:0 0!important}#app.light .nav-menu-list .nav-button[data-v-29661b5f]{border-color:#eee!important}#app.dark .nav-menu-list .nav-button[data-v-29661b5f],#app.black .nav-menu-list .nav-button[data-v-29661b5f]{border-color:#111!important}.popover-inside[data-v-2cb150dc]{max-width:448px}.ui-button[data-v-2cb150dc]{margin:.5rem auto;display:block}.popover-inside[data-v-25e176fe]{max-width:448px}.cloud-animation[data-v-25e176fe]{height:80px}.popover-inside[data-v-ecb5cf26]{max-width:320px}.ui-button[data-v-ecb5cf26]{margin-left:auto;margin-right:auto;display:block}.dismiss-button[data-v-ecb5cf26]{margin-top:.75rem}.nav-top[data-v-d03c8ebc]{pointer-events:none;z-index:0;height:72px;transition-property:opacity;transition-duration:.2s;position:fixed;top:0;left:0;right:0}.nav-section[data-v-d03c8ebc]{z-index:40;padding-left:constant(safe-area-inset-left);padding-left:env(safe-area-inset-left);padding-right:constant(safe-area-inset-right);padding-right:env(safe-area-inset-right);justify-content:space-between;display:flex}.nav-left[data-v-d03c8ebc],.nav-right[data-v-d03c8ebc]{pointer-events:auto}body.mac.native .nav-left[data-v-d03c8ebc]{margin-top:5px!important;margin-left:-2px!important}.nav-bottom[data-v-d03c8ebc]{z-index:10;position:fixed;bottom:0;right:0}#app .nav-top[data-v-d03c8ebc]{background:0 0}#app.light .nav-top[data-v-d03c8ebc]{color:#444}#app.dark .nav-top[data-v-d03c8ebc]{color:#aaa}#app.black .nav-top[data-v-d03c8ebc]{color:#888}#app:not(.scrolled-top) .nav-top[data-v-d03c8ebc]:not(.fixedLayout){opacity:0}#app:not(.scrolled-top) .nav-top:not(.fixedLayout) .ui-button[data-v-d03c8ebc]{pointer-events:none}.home-label[data-v-d03c8ebc]{font-size:30px}.back-button[data-v-d03c8ebc]{font-size:24px}.title[data-v-d03c8ebc]{width:auto!important}#popover-container[data-v-ad8edd14]{z-index:40;max-width:100%;max-height:100%;margin-left:.5rem;margin-right:.5rem;position:absolute;top:0;left:0}#popover-contents[data-v-ad8edd14]{border-radius:.25rem;max-width:560px;padding:.25rem}#popover-contents.padded[data-v-ad8edd14]{padding:10px 12px}.ignore[data-v-ad8edd14]{pointer-events:auto}.guide[data-v-ad8edd14]{text-align:center;width:12rem;margin-top:1rem;font-size:1.125rem}#popover-wrapper[direction=down] #popover-container[data-v-ad8edd14]{margin-top:1px!important}#popover-wrapper[direction=down] #popover-contents[data-v-ad8edd14]{margin-top:5px}#popover-wrapper[direction=right] #popover-contents[data-v-ad8edd14]{margin-left:-2px}#popover-wrapper[direction=left] #popover-contents[data-v-ad8edd14]{margin-left:-8px}#popover-arrow[data-v-ad8edd14]{z-index:40;border-width:6px;width:0;height:0;position:absolute;top:0;left:0}#popover-wrapper[direction=up] #popover-arrow[data-v-ad8edd14]{border-bottom-width:0;margin-left:-7px;border-bottom-color:#0000!important;border-left-color:#0000!important;border-right-color:#0000!important}#popover-wrapper[direction=down] #popover-arrow[data-v-ad8edd14]{border-top-width:0;margin-left:-6px;border-top-color:#0000!important;border-left-color:#0000!important;border-right-color:#0000!important}#popover-wrapper[direction=left] #popover-arrow[data-v-ad8edd14]{border-right-width:0;margin-top:-6px;border-top-color:#0000!important;border-bottom-color:#0000!important;border-right-color:#0000!important}#popover-wrapper[direction=right] #popover-arrow[data-v-ad8edd14]{border-left-width:0;margin-top:-6px;border-top-color:#0000!important;border-bottom-color:#0000!important;border-left-color:#0000!important}#app.light #popover-contents[data-v-ad8edd14]{background-color:#f4f4f3}#app.light #popover-arrow[data-v-ad8edd14]{border-color:#f4f4f3}#app.dark #popover-contents[data-v-ad8edd14]{background-color:#333}#app.dark #popover-arrow[data-v-ad8edd14]{border-color:#333}#app.black #popover-contents[data-v-ad8edd14]{background-color:#222}#app.black #popover-arrow[data-v-ad8edd14]{border-color:#222}#app.light #popover-contents[data-v-ad8edd14]{box-shadow:0 5px 25px #00000080}#app.dark #popover-contents[data-v-ad8edd14]{box-shadow:0 5px 30px #00000080}#app.black #popover-contents[data-v-ad8edd14]{box-shadow:0 5px 30px #000}.continue-button[data-v-6bef9f08]{margin-top:2rem;margin-bottom:2rem}.more-lessons[data-v-6bef9f08]{vertical-align:top;margin-top:.5rem;margin-right:2rem;display:inline-block}.more-lessons .textbook-button[data-v-6bef9f08]{width:16rem;margin-top:.5rem;margin-bottom:.5rem;display:block}.continue-button[data-v-a9f41ca3]{margin-top:2rem;margin-bottom:2rem}*,:before,:after{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:#3b82f680;--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:#3b82f680;--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border:0 solid #e2e8f0}:before,:after{--tw-content:""}html,:host{-webkit-text-size-adjust:100%;tab-size:4;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent;font-family:Rounded Japanese,ui-rounded,SF Pro Rounded,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji,Radicals;line-height:1.5}body{line-height:inherit;margin:0}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-feature-settings:normal;font-variation-settings:normal;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-feature-settings:inherit;font-variation-settings:inherit;font-family:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button{-webkit-appearance:button;background-color:#0000;background-image:none}input:where([type=button]){-webkit-appearance:button;background-color:#0000;background-image:none}input:where([type=reset]){-webkit-appearance:button;background-color:#0000;background-image:none}input:where([type=submit]){-webkit-appearance:button;background-color:#0000;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{margin:0;padding:0;list-style:none}dialog{padding:0}textarea{resize:vertical}input::placeholder,textarea::placeholder{opacity:1;color:#cbd5e0}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}button,input,optgroup,select,textarea{letter-spacing:normal;font-weight:400}input::placeholder,textarea::placeholder{color:#a0aec0}.pointer-events-none{pointer-events:none}.pointer-events-auto{pointer-events:auto}.visible{visibility:visible}.invisible{visibility:hidden}.static{position:static}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.inset-0{top:0;bottom:0;left:0;right:0}.inset-x-0{left:0;right:0}.bottom-0{bottom:0}.left-0{left:0}.right-0{right:0}.top-0{top:0}.z-0{z-index:0}.z-10{z-index:10}.z-20{z-index:20}.z-30{z-index:30}.z-40{z-index:40}.z-50{z-index:50}.float-left{float:left}.m-0{margin:0}.m-1{margin:.25rem}.m-2{margin:.5rem}.m-3{margin:.75rem}.m-4{margin:1rem}.m-auto{margin:auto}.m-px{margin:1px}.mx-1{margin-left:.25rem;margin-right:.25rem}.mx-12{margin-left:3rem;margin-right:3rem}.mx-2{margin-left:.5rem;margin-right:.5rem}.mx-20{margin-left:5rem;margin-right:5rem}.mx-4{margin-left:1rem;margin-right:1rem}.mx-auto{margin-left:auto;margin-right:auto}.mx-px{margin-left:1px;margin-right:1px}.my-0{margin-top:0;margin-bottom:0}.my-1{margin-top:.25rem;margin-bottom:.25rem}.my-2{margin-top:.5rem;margin-bottom:.5rem}.my-3{margin-top:.75rem;margin-bottom:.75rem}.my-4{margin-top:1rem;margin-bottom:1rem}.my-6{margin-top:1.5rem;margin-bottom:1.5rem}.my-8{margin-top:2rem;margin-bottom:2rem}.-mb-4{margin-bottom:-1rem}.-mb-6{margin-bottom:-1.5rem}.-ml-px{margin-left:-1px}.-mt-1{margin-top:-.25rem}.-mt-3{margin-top:-.75rem}.-mt-4{margin-top:-1rem}.-mt-8{margin-top:-2rem}.-mt-px{margin-top:-1px}.mb-0{margin-bottom:0}.mb-1{margin-bottom:.25rem}.mb-12{margin-bottom:3rem}.mb-16{margin-bottom:4rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:.75rem}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}.mb-8{margin-bottom:2rem}.mb-px{margin-bottom:1px}.ml-1{margin-left:.25rem}.ml-16{margin-left:4rem}.ml-2{margin-left:.5rem}.ml-4{margin-left:1rem}.ml-px{margin-left:1px}.mr-0{margin-right:0}.mr-1{margin-right:.25rem}.mr-2{margin-right:.5rem}.mr-4{margin-right:1rem}.mr-6{margin-right:1.5rem}.mr-8{margin-right:2rem}.mr-px{margin-right:1px}.mt-0{margin-top:0}.mt-1{margin-top:.25rem}.mt-12{margin-top:3rem}.mt-16{margin-top:4rem}.mt-2{margin-top:.5rem}.mt-24{margin-top:6rem}.mt-3{margin-top:.75rem}.mt-32{margin-top:8rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mt-8{margin-top:2rem}.mt-px{margin-top:1px}.inline-block{display:inline-block}.\!inline{display:inline!important}.inline{display:inline}.flex{display:flex}.table{display:table}.grid{display:grid}.\!contents{display:contents!important}.contents{display:contents}.hidden{display:none}.h-0{height:0}.h-1{height:.25rem}.h-10{height:2.5rem}.h-12{height:3rem}.h-16{height:4rem}.h-2{height:.5rem}.h-20{height:5rem}.h-24{height:6rem}.h-3{height:.75rem}.h-4{height:1rem}.h-40{height:10rem}.h-48{height:12rem}.h-5{height:1.25rem}.h-6{height:1.5rem}.h-64{height:16rem}.h-8{height:2rem}.h-auto{height:auto}.h-full{height:100%}.h-nav{height:72px}.h-nav-content{height:44px}.h-px{height:1px}.h-tap{height:44px}.max-h-128{max-height:32rem}.max-h-full{max-height:100%}.min-h-16{min-height:4rem}.min-h-tap{min-height:44px}.w-1\/2{width:50%}.w-10{width:2.5rem}.w-12{width:3rem}.w-16{width:4rem}.w-24{width:6rem}.w-32{width:8rem}.w-36{width:9rem}.w-4{width:1rem}.w-40{width:10rem}.w-48{width:12rem}.w-5{width:1.25rem}.w-6{width:1.5rem}.w-64{width:16rem}.w-8{width:2rem}.w-80{width:20rem}.w-96{width:24rem}.w-full{width:100%}.w-nav-content,.w-tap{width:44px}.min-w-0{min-width:0}.max-w-full{max-width:100%}.max-w-sm{max-width:24rem}.max-w-xs{max-width:20rem}.flex-1{flex:1}.flex-shrink{flex-shrink:1}.flex-shrink-0{flex-shrink:0}.flex-grow{flex-grow:1}.border-collapse{border-collapse:collapse}.rotate-90{--tw-rotate:90deg;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.transform{transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.cursor-default{cursor:default}.cursor-not-allowed{cursor:not-allowed}.cursor-pointer{cursor:pointer}.select-none{-webkit-user-select:none;user-select:none}.select-text{-webkit-user-select:text;user-select:text}.resize{resize:both}.list-decimal{list-style-type:decimal}.list-disc{list-style-type:disc}.appearance-none{-webkit-appearance:none;appearance:none}.flex-row{flex-direction:row}.flex-col{flex-direction:column}.flex-col-reverse{flex-direction:column-reverse}.flex-wrap{flex-wrap:wrap}.flex-nowrap{flex-wrap:nowrap}.content-end{align-content:flex-end}.items-end{align-items:flex-end}.items-center{align-items:center}.justify-start{justify-content:flex-start}.justify-end{justify-content:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.justify-around{justify-content:space-around}.space-y-6>:not([hidden])~:not([hidden]){--tw-space-y-reverse:0;margin-top:calc(1.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(1.5rem * var(--tw-space-y-reverse))}.overflow-auto{overflow:auto}.overflow-hidden{overflow:hidden}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.whitespace-nowrap{white-space:nowrap}.whitespace-pre{white-space:pre}.whitespace-pre-line{white-space:pre-line}.whitespace-pre-wrap{white-space:pre-wrap}.break-words{overflow-wrap:break-word}.\!rounded{border-radius:.25rem!important}.rounded{border-radius:.25rem}.rounded-full{border-radius:9999px}.rounded-none{border-radius:0}.rounded-sm{border-radius:.125rem}.rounded-b-sm{border-bottom-right-radius:.125rem;border-bottom-left-radius:.125rem}.rounded-t{border-top-left-radius:.25rem;border-top-right-radius:.25rem}.rounded-t-none{border-top-left-radius:0;border-top-right-radius:0}.border{border-width:1px}.border-0{border-width:0}.border-2{border-width:2px}.border-l{border-left-width:1px}.border-l-0{border-left-width:0}.border-r{border-right-width:1px}.border-t-0{border-top-width:0}.border-none{border-style:none}.bg-black{--tw-bg-opacity:1;background-color:rgb(0 0 0/var(--tw-bg-opacity,1))}.bg-current{background-color:currentColor}.bg-gray-100{--tw-bg-opacity:1;background-color:rgb(247 250 252/var(--tw-bg-opacity,1))}.bg-signin-900{--tw-bg-opacity:1;background-color:rgb(82 20 37/var(--tw-bg-opacity,1))}.bg-transparent{background-color:#0000}.bg-white{--tw-bg-opacity:1;background-color:rgb(255 255 255/var(--tw-bg-opacity,1))}.p-0{padding:0}.p-1{padding:.25rem}.p-2{padding:.5rem}.p-3{padding:.75rem}.p-px{padding:1px}.px-1{padding-left:.25rem;padding-right:.25rem}.px-2{padding-left:.5rem;padding-right:.5rem}.px-3{padding-left:.75rem;padding-right:.75rem}.px-4{padding-left:1rem;padding-right:1rem}.py-0{padding-top:0;padding-bottom:0}.py-1{padding-top:.25rem;padding-bottom:.25rem}.py-16{padding-top:4rem;padding-bottom:4rem}.py-2{padding-top:.5rem;padding-bottom:.5rem}.py-3{padding-top:.75rem;padding-bottom:.75rem}.py-8{padding-top:2rem;padding-bottom:2rem}.py-px{padding-top:1px;padding-bottom:1px}.pb-2{padding-bottom:.5rem}.pb-3{padding-bottom:.75rem}.pb-4{padding-bottom:1rem}.pb-8{padding-bottom:2rem}.pb-px{padding-bottom:1px}.pl-1{padding-left:.25rem}.pl-3{padding-left:.75rem}.pl-4{padding-left:1rem}.pr-1{padding-right:.25rem}.pr-3{padding-right:.75rem}.pr-4{padding-right:1rem}.pr-5{padding-right:1.25rem}.pr-7{padding-right:1.75rem}.pr-9{padding-right:2.25rem}.pt-1{padding-top:.25rem}.pt-16{padding-top:4rem}.pt-4{padding-top:1rem}.pt-8{padding-top:2rem}.text-left{text-align:left}.text-center{text-align:center}.text-right{text-align:right}.align-top{vertical-align:top}.font-kanji{font-family:Rounded Japanese,ui-rounded,SF Pro Rounded,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,游ゴシック,Yu Gothic,YuGothic,Noto Sans,Hiragino Kaku Gothic ProN,Noto Sans CJK JP,Noto Sans Japanese,Radicals,sans-serif}.font-sans{font-family:Rounded Japanese,ui-rounded,SF Pro Rounded,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji,Radicals}.text-2xl{font-size:1.5rem}.text-3xl{font-size:1.875rem}.text-4xl{font-size:2.25rem}.text-5xl{font-size:3rem}.text-6xl{font-size:4rem}.text-base{font-size:1rem}.text-lg{font-size:1.125rem}.text-sm{font-size:.875rem}.text-xl{font-size:1.25rem}.text-xs{font-size:.75rem}.font-black{font-weight:900}.font-bold{font-weight:700}.font-extrabold{font-weight:800}.font-extralight{font-weight:200}.font-light{font-weight:300}.font-medium{font-weight:500}.font-normal{font-weight:400}.font-semibold{font-weight:600}.font-thin{font-weight:100}.uppercase{text-transform:uppercase}.capitalize{text-transform:capitalize}.italic{font-style:italic}.not-italic{font-style:normal}.leading-none{line-height:1}.leading-tight{line-height:1.25}.tracking-wide{letter-spacing:.025em}.text-gray-300{--tw-text-opacity:1;color:rgb(226 232 240/var(--tw-text-opacity,1))}.text-gray-700{--tw-text-opacity:1;color:rgb(74 85 104/var(--tw-text-opacity,1))}.text-gray-800{--tw-text-opacity:1;color:rgb(45 55 72/var(--tw-text-opacity,1))}.text-red-500{--tw-text-opacity:1;color:rgb(245 101 101/var(--tw-text-opacity,1))}.text-signin-100{--tw-text-opacity:1;color:rgb(235 173 190/var(--tw-text-opacity,1))}.text-signin-900{--tw-text-opacity:1;color:rgb(82 20 37/var(--tw-text-opacity,1))}.text-white{--tw-text-opacity:1;color:rgb(255 255 255/var(--tw-text-opacity,1))}.underline{text-decoration-line:underline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.opacity-0{opacity:0}.opacity-100{opacity:1}.opacity-50{opacity:.5}.opacity-75{opacity:.75}.opacity-90{opacity:.9}.outline{outline-style:solid}.ring{--tw-ring-offset-shadow:var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow:var(--tw-ring-inset) 0 0 0 calc(3px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow,0 0 #0000)}.blur{--tw-blur:blur(8px);filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.backdrop-filter{-webkit-backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia);backdrop-filter:var(--tw-backdrop-blur) var(--tw-backdrop-brightness) var(--tw-backdrop-contrast) var(--tw-backdrop-grayscale) var(--tw-backdrop-hue-rotate) var(--tw-backdrop-invert) var(--tw-backdrop-opacity) var(--tw-backdrop-saturate) var(--tw-backdrop-sepia)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,-webkit-backdrop-filter,backdrop-filter;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.transition-all{transition-property:all;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.transition-transform{transition-property:transform;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.ease-in{transition-timing-function:cubic-bezier(.4,0,1,1)}.wh-0{width:0;height:0}.wh-3{width:.75rem;height:.75rem}.wh-6{width:1.5rem;height:1.5rem}.wh-8{width:2rem;height:2rem}.wh-10{width:2.5rem;height:2.5rem}.wh-12{width:3rem;height:3rem}.wh-16{width:4rem;height:4rem}.wh-20{width:5rem;height:5rem}.wh-24{width:6rem;height:6rem}.wh-40{width:10rem;height:10rem}.wh-nav{width:72px;height:72px}.wh-full{width:100%;height:100%}.wh-tap,.wh-nav-content{width:44px;height:44px}@font-face{font-family:Radicals;src:url(/fonts/Radicals.83ee9f43.woff2)format("woff2"),url(/fonts/Radicals.bd399397.woff)format("woff")}@font-face{font-family:Rounded Japanese;src:local(HiraMaruProN-W4),local(Hiragino Maru Gothic ProN W4),local(Hiragino Maru Gothic ProN);unicode-range:U+30??,U+3400-4DBF,U+4E00-9FFF,U+F900-FAFF,U+FF00-FFEF}@keyframes dash{to{stroke-dashoffset:0}}.fade-enter-active,.fade-leave-active{transition-duration:.2s!important}.fade-enter-from,.fade-leave-to{opacity:0}html{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;width:100%;height:100%}@media (hover:none) and (pointer:coarse){@supports (font:-apple-system-body){html{font:-apple-system-body}body.signed-out{font:initial}}}body.native,body:not(.ios){height:100%}#app{cursor:default;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Rounded Japanese,ui-rounded,SF Pro Rounded,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji,Radicals;font-size:1.25rem;overflow:hidden}body:not(.apple) [lang=ja]{font-weight:500}.safe-sides{margin-left:constant(safe-area-inset-left);margin-left:env(safe-area-inset-left);margin-right:constant(safe-area-inset-right);margin-right:env(safe-area-inset-right)}.safe-bottom{margin-bottom:constant(safe-area-inset-bottom);margin-bottom:env(safe-area-inset-bottom)}.dark-backing{color:#dddddc;background-color:#333;margin-bottom:32px}#popover-contents .max{max-width:300px}.section{margin-top:2rem;margin-bottom:3rem}.section .title{margin-bottom:.5rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}#blur-bar{z-index:30;padding-top:20px;padding-top:constant(safe-area-inset-top);padding-top:env(safe-area-inset-top);position:absolute;top:0;left:0;right:0}#app.fixed-nav #blur-bar{box-sizing:content-box;height:72px}#app.light #blur-bar:not(.blurs){background-color:#fffffdf7}#app.dark #blur-bar:not(.blurs){background-color:#232424f2}#app.black #blur-bar:not(.blurs){background-color:#000000e6}#app.light #blur-bar.blurs{background-color:#fffffd4d}#app.dark #blur-bar.blurs{background-color:#2122224d}#app.black #blur-bar.blurs{background-color:#0000004d}.blurs{-webkit-backdrop-filter:saturate(3)blur(16px);backdrop-filter:saturate(3)blur(16px)}.kanji-strokes .pa{stroke-dasharray:180;stroke-dashoffset:180px;animation:.8s linear forwards dash}.kanji-strokes path{stroke:currentColor}.progress-0{color:#59a66c}.progress-1{color:#55aa85}.progress-2{color:#52ada3}.progress-3{color:#4e9db1}.progress-4{color:#4a7eb5}.progress-5{color:#4659b9}.progress-6{color:#5542bd}.progress-7{color:#7b3ec1}.progress-8{color:#a73bc4}.progress-9{color:#c837ba}.progress-10{color:#cc338c}.progress-11{color:#d02f5a}.progress-12{color:#d4342b}.progress-13{color:#d76828}.progress-14{color:#dba124}.progress-bg-0{fill:#59a66c;background:#59a66c!important}.progress-bg-1{fill:#55aa85;background:#55aa85!important}.progress-bg-2{fill:#52ada3;background:#52ada3!important}.progress-bg-3{fill:#4e9db1;background:#4e9db1!important}.progress-bg-4{fill:#4a7eb5;background:#4a7eb5!important}.progress-bg-5{fill:#4659b9;background:#4659b9!important}.progress-bg-6{fill:#5542bd;background:#5542bd!important}.progress-bg-7{fill:#7b3ec1;background:#7b3ec1!important}.progress-bg-8{fill:#a73bc4;background:#a73bc4!important}.progress-bg-9{fill:#c837ba;background:#c837ba!important}.progress-bg-10{fill:#cc338c;background:#cc338c!important}.progress-bg-11{fill:#d02f5a;background:#d02f5a!important}.progress-bg-12{fill:#d4342b;background:#d4342b!important}.progress-bg-13{fill:#d76828;background:#d76828!important}.progress-bg-14{fill:#dba124;background:#dba124!important}::selection{color:#fff;background:#f89}#app.light,#app.light .text-color{color:#323333}#app.dark,#app.dark .text-color{color:#dddddc}#app.black,#app.black .text-color{color:#bbbbba}#app.light,#app.light .background{background-color:#fffffd}#app.dark,#app.dark .background{background-color:#232424}#app.black,#app.black .background{background-color:#000}#app.light .bg-subtle{background-color:#f4f4f3}#app.dark .bg-subtle{background-color:#444}#app.black .bg-subtle{background-color:#333}#app.light .faint{color:#888!important}#app.dark .faint{color:#999!important}#app.black .faint{color:#888!important}body:not(.touch) #app.light .hover-bg:hover{background-color:#eee}body:not(.touch) #app.dark .hover-bg:hover{background-color:#333}body:not(.touch) #app.black .hover-bg:hover{background-color:#1a1a1a}#app.light .inverted{color:#fffffd;background-color:#888}#app.dark .inverted{color:#232424;background-color:#888}#app.black .inverted{color:#000;background-color:#888}.action-buttons .ui-button{margin-top:.5rem;margin-right:.5rem}@media (max-width:359px){.action-buttons .ui-button{margin-right:.25rem}}.action-buttons .ui-button:last-child{margin-right:0}.box-detail{width:100%;height:.25rem;font-size:.875rem;position:absolute;bottom:0}#app.light .box-detail{color:#666}#app.dark .box-detail,#app.black .box-detail{color:#bbb}.container{max-width:768px;margin-left:auto;margin-right:auto;padding-left:1rem;padding-right:1rem}.container .full,.container .full-small{width:100vw!important;max-width:768px!important;margin-left:-1rem!important;margin-right:-1rem!important}.padded{padding-left:1rem;padding-right:1rem}@media (max-width:359px){.container,.padded{padding-left:.75rem;padding-right:.75rem}.container .full,.container .full-small{margin-left:-.75rem!important;margin-right:-.75rem!important}}@media (min-width:820px){.container,.padded{padding-left:1.25rem;padding-right:1.25rem}.container .full{margin-left:-20px!important;margin-right:-20px!important}.container .full-small{width:100%!important;margin-left:0!important;margin-right:0!important}}.block{display:block!important}.auto,button.big{margin-left:auto;margin-right:auto;display:block}.w-black,.ui-control .selected{font-weight:600}.w-thick,button.small{font-weight:500}button.big{font-weight:400}.scroll-x,.scroll-y{-webkit-overflow-scrolling:touch}.scroll-x{overflow-x:auto;overflow-y:hidden}.scroll-y{overflow-x:hidden;overflow-y:auto}.small{font-size:1.125rem}h3,h4,h2.title{font-size:1.5rem}h2:not(.title),.big:not(.text-2xl){font-size:1.875rem}h1{font-size:3rem}.title-line{border-bottom:1px solid #fffffd;margin-top:.5rem;padding-bottom:3px;font-weight:300}.title-line .help-text{padding-left:1px;padding-right:1px}#app.light .title-line{border-color:#ddd}#app.dark .title-line,#app.black .title-line{border-color:#333}h1,h2,h3,h4{letter-spacing:0}h1{font-weight:300}h2,h3,h4{font-weight:400}.m-caption{margin-top:.25rem;margin-bottom:1.5rem}.text-theme{color:#d78}.stat-number{font-size:3rem;font-weight:300;line-height:1}a{text-decoration:none}a:visited{color:#a67}a:link{color:#c67}a:link:hover{opacity:.5}a:link:hover:active{opacity:.75}.aside{border-left:1.5px solid #222;padding-left:1rem;font-style:italic}#app.light .aside{border-color:#666}#app.dark .aside{border-color:#aaa}#app.black .aside{border-color:#bbb}table{border-collapse:separate;border-spacing:0 2px}table.top td{vertical-align:top}#app.status-bar .inset-top{top:20px;top:constant(safe-area-inset-top);top:env(safe-area-inset-top)}.word-separate{white-space:nowrap}wbr+.word-separate{margin-left:1rem}.center-container{max-width:480px;margin-left:auto;margin-right:auto}ruby{ruby-position:under}ruby rt{text-align:center;font-size:60%}ruby.hide{cursor:help}ruby.hide:not(:hover) rt{visibility:hidden}@supports ((-moz-appearance:meterbar)){rt{position:relative}rt div:nth-child(2){position:absolute;top:100%}}a,.animates,.background,.blurs,.ui-control,.onoff,.control-content{transition-duration:.5s;transition-timing-function:ease-out}a,.ui-control,.onoff,.control-content{transition-property:all}.background,.blurs{transition-property:background}p{margin-top:1rem;margin-bottom:1rem;line-height:1.25}.textbook-contents p{margin-top:1rem;margin-bottom:1rem;line-height:1.5}.textbook-contents .textbook-button{min-height:2rem}.textbook-contents h2{margin-top:1rem;padding-top:1rem}.textbook-contents h3,.textbook-contents h4{margin-top:1.5rem;margin-bottom:-.25rem}button{background-color:#0000;outline:none!important}button.big{width:24rem;max-width:92vw;min-height:62px}.ui-control{border-radius:7px}button.small{border-radius:5px;min-width:144px;min-height:44px;padding-left:1rem;padding-right:1rem}.ui-control{border-width:1px}#app.light .bordered{border-color:#ccc}#app.dark .bordered{border-color:#030303}#app.black .bordered{border-color:#333}.ui-control.borderless{border:none!important}.control-content{fill:currentColor}.control-content path[stroke]{stroke:currentColor!important}#app.light .control-content{color:#555;background-color:#fff}#app.dark .control-content{color:#ddd;background-color:#222}#app.black .control-content{color:#bbb;background-color:#030303}#app .ui-control .selected:not(.control-content),#app .control-content.selected{color:#fffffd}#app .control-content.selected{cursor:default}#app.light .backed{background-color:#f4f4f3}#app.dark .backed{background-color:#1d1d1d}#app.black .backed{background-color:#111}#app.light button.backed:hover:active,#app.dark button.backed:hover:active{color:#fffffd!important}#app.black button.backed:hover:active{color:#bbbbba!important}#app.light .backed-back{background-color:#fcfcfc}#app.dark .backed-back{background-color:#292929}#app.black .backed-back{background-color:#171717}body:not(.touch) #app.light .all-hover:hover .control-content,body:not(.touch) #app.light .control-content:not(.selected):hover{background-color:#eee}body:not(.touch) #app.dark .all-hover:hover .control-content,body:not(.touch) #app.dark .control-content:not(.selected):hover{background-color:#181818}body:not(.touch) #app.black .all-hover:hover .control-content,body:not(.touch) #app.black .control-content:not(.selected):hover{background-color:#1a1a1a}body.select-none .select-text{-webkit-user-select:none!important;user-select:none!important}body:not(.null) #app.light .ui-control .selected,body:not(.null) #app.light .all-hover:hover:active .control-content,body:not(.null) #app.light .control-content:hover:active,body:not(.null) #app.light .control-content.selecting{background-color:#999}body:not(.null) #app.dark .ui-control .selected,body:not(.null) #app.dark .all-hover:hover:active .control-content,body:not(.null) #app.dark .control-content:hover:active,body:not(.null) #app.dark .control-content.selecting{background-color:#030303}body:not(.null) #app.black .ui-control .selected,body:not(.null) #app.black .all-hover:hover:active .control-content,body:not(.null) #app.black .control-content:hover:active,body:not(.null) #app.black .control-content.selecting{background-color:#333}fieldset[disabled] input,fieldset[disabled] button{cursor:not-allowed}fieldset[disabled] button{opacity:.75}.interactive,button,a{cursor:pointer}.copy,.copy .interactive{cursor:copy}.help,.help .interactive{cursor:help}.not-allowed,.interactive.disabled{cursor:not-allowed}input{-webkit-appearance:none;appearance:none;caret-color:#c67;border-radius:0}input,select{outline-offset:2px;outline:2px solid #0000;padding:0}#app.light input{color:inherit;background-color:#f4f4f3}#app.dark input{color:#fffffd;background-color:#2c2c2c}#app.black input{color:#bbbbba;background-color:#262626}input.small{border-radius:.125rem;height:36px;padding:0 6px}input.valid{background-color:#6e9!important}input.invalid{background-color:#e9a!important}.title,.textbook-table th{font-variant:small-caps;letter-spacing:1px}.textbook-table th{font-weight:400}.title-mini{white-space:nowrap;font-variant:small-caps;letter-spacing:.1px;font-size:1.125rem;font-weight:400}.text-border{text-shadow:0 1px #000,0 -1px #000,1px 0 #000,-1px 0 #000,1px 1px #000,-1px 1px #000,1px -1px #000,-1px -1px #000}.highlight{white-space:nowrap;border-radius:.25rem;height:100px;padding:0 3px}.highlight .primary{color:#fffffd;text-shadow:.5px 1px #000;font-weight:600}.highlight .secondary{font-weight:400}#app.light .highlight{background-color:#ccc}#app.light .suffix{background-color:#ddd}#app.dark .highlight .secondary{color:#aaa}#app.dark .highlight,#app.dark .suffix{background-color:#111}#app.black .highlight .secondary{color:#aaa}#app.black .highlight,#app.black .suffix{background-color:#222}.reading-container{white-space:nowrap;max-width:100%;display:flex}.reading-container .reading{margin-bottom:.25rem}.reading-container .reading.word-separate{vertical-align:top}.tutorial-contents ol{padding-left:7%;line-height:1.25;list-style-type:decimal}.tutorial-contents ul{margin-left:1.25rem;margin-right:1.25rem;list-style-type:disc}.tutorial-contents li{margin-top:.5rem;margin-bottom:.5rem}.bg-fin:before{z-index:-1;content:"";background-color:inherit;transform-origin:0 0;position:absolute;top:0;bottom:0;left:0;right:0;transform:skewY(-1deg)}.fin-left:before{transform-origin:100% 0;transform:skewY(1deg)}@media (max-width:1200px){.bg-fin:before{transform:skewY(-1.5deg)}.fin-left:before{transform:skewY(1.5deg)}}@media (max-width:640px){.bg-fin:before{transform:skewY(-2deg)}.fin-left:before{transform:skewY(2deg)}}@media (orientation:landscape){.hide-portrait{display:none}}@media (orientation:landscape) and (max-height:480px){#blur-bar{height:0!important}}@keyframes pr-1{0%{stroke-dasharray:0 100;color:#59a66c}}@keyframes pr-3{0%{stroke-dasharray:0 100;color:#59a66c}67%{color:#52ada3}}@keyframes pr-5{0%{stroke-dasharray:0 100;color:#59a66c}40%{color:#52ada3}80%{color:#4a7eb5}}@keyframes pr-7{0%{stroke-dasharray:0 100;color:#59a66c}29%{color:#52ada3}57%{color:#4a7eb5}86%{color:#5542bd}}@keyframes pr-9{0%{stroke-dasharray:0 100;color:#59a66c}22%{color:#52ada3}44%{color:#4a7eb5}67%{color:#5542bd}89%{color:#a73bc4}}@media (min-width:640px){.sm\:mb-6{margin-bottom:1.5rem}.sm\:mr-2{margin-right:.5rem}.sm\:h-16{height:4rem}.sm\:h-20{height:5rem}.sm\:w-64{width:16rem}.sm\:text-5xl{font-size:3rem}.sm\:text-6xl{font-size:4rem}.sm\:text-base{font-size:1rem}}@media (min-width:768px){.md\:text-4xl{font-size:2.25rem}.md\:text-6xl{font-size:4rem}}