*,:after,:before{--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:rgb(59 130 246/0.5);--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:rgb(59 130 246/0.5);--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: }/*
! tailwindcss v3.4.17 | MIT License | https://tailwindcss.com
*/*,:after,:before{box-sizing:border-box;border:0 solid #e5e7eb}:after,:before{--tw-content:""}:host,html{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;tab-size:4;font-family:var(--font-ui),system-ui,sans-serif;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{font-family:var(--font-data),ui-monospace,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings: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,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-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,dd,dl,figure,h1,h2,h3,h4,h5,h6,hr,p,pre{margin:0}fieldset{margin:0}fieldset,legend{padding:0}menu,ol,ul{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}[role=button],button{cursor:pointer}:disabled{cursor:default}audio,canvas,embed,iframe,img,object,svg,video{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}:root{--paper:40 33% 99%;--ink:216 26% 9%;--ink-soft:216 12% 42%;--ink-faint:216 10% 62%;--rule:220 14% 87%;--rule-strong:216 18% 72%;--surface:40 20% 97%;--exact:213 68% 38%;--exact-soft:213 62% 94%;--approx:20 91% 40%;--approx-soft:24 88% 95%;--correct:158 78% 27%;--correct-soft:158 60% 94%;--wrong:0 66% 44%;--wrong-soft:0 72% 96%;--radius:3px;--background:var(--paper);--foreground:var(--ink);--card:0 0% 100%;--card-foreground:var(--ink);--popover:0 0% 100%;--popover-foreground:var(--ink);--primary:var(--exact);--primary-foreground:0 0% 100%;--secondary:var(--surface);--secondary-foreground:var(--ink);--muted:var(--surface);--muted-foreground:var(--ink-soft);--accent:var(--approx);--accent-foreground:0 0% 100%;--destructive:var(--wrong);--destructive-foreground:0 0% 100%;--border:var(--rule);--input:var(--rule-strong);--ring:var(--exact)}.dark{--paper:217 30% 7%;--ink:40 20% 95%;--ink-soft:217 12% 65%;--ink-faint:217 10% 45%;--rule:217 18% 22%;--rule-strong:217 14% 34%;--surface:217 26% 11%;--exact:208 88% 55%;--exact-soft:213 40% 18%;--approx:26 88% 46%;--approx-soft:22 40% 16%;--correct:158 62% 42%;--correct-soft:158 40% 14%;--wrong:2 78% 66%;--wrong-soft:2 40% 16%;--card:217 28% 9%;--card-foreground:var(--ink);--popover:217 28% 9%;--popover-foreground:var(--ink);--primary-foreground:217 30% 7%;--accent-foreground:217 30% 7%;--destructive-foreground:217 30% 7%}*{border-color:hsl(var(--border))}html{-webkit-text-size-adjust:100%}body{background-color:hsl(var(--background));color:hsl(var(--foreground));font-feature-settings:"kern" 1}.tabular{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}:focus-visible{outline:2px solid hsl(var(--exact));outline-offset:2px}.answer-rule{width:100%;background-color:transparent;font-family:var(--font-question),Georgia,serif;color:hsl(var(--ink));border:0;border-bottom:2px solid hsl(var(--rule-strong));border-radius:0;padding:.15em .1em .12em;transition:border-color .14s ease,background-color .14s ease}.answer-rule:focus{outline:none;border-bottom-color:hsl(var(--exact))}.answer-rule[data-star=true]:focus{border-bottom-color:hsl(var(--approx))}.answer-rule[data-state=correct]{border-bottom-color:hsl(var(--correct))}.answer-rule[data-state=wrong]{border-bottom-color:hsl(var(--wrong))}.answer-rule::placeholder{color:hsl(var(--ink-faint))}.\!lesson>p{margin-bottom:1.15em!important}.lesson>p{margin-bottom:1.15em}.\!lesson>p:last-child{margin-bottom:0!important}.lesson>p:last-child{margin-bottom:0}.\!lesson strong{font-weight:600!important}.lesson strong{font-weight:600}.lesson ol,.lesson ul{margin:0 0 1.15em 1.25em;list-style:revert}.\!lesson ol,.\!lesson ul{margin:0 0 1.15em 1.25em!important;list-style:revert!important}.\!lesson li{margin-bottom:.35em!important}.lesson li{margin-bottom:.35em}.\!lesson table{width:100%!important;margin-bottom:1.15em!important;border-collapse:collapse!important}.lesson table{width:100%;margin-bottom:1.15em;border-collapse:collapse}.lesson td,.lesson th{border-bottom:1px solid hsl(var(--rule));padding:.4em .6em;text-align:left}.\!lesson td,.\!lesson th{border-bottom:1px solid hsl(var(--rule))!important;padding:.4em .6em!important;text-align:left!important}.star-mark{user-select:none;font-family:var(--font-question),Georgia,serif;color:hsl(var(--approx));line-height:1}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.visible{visibility:visible}.static{position:static}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.-left-3{left:-.75rem}.-left-5{left:-1.25rem}.top-0{top:0}.top-1{top:.25rem}.mx-auto{margin-left:auto;margin-right:auto}.ml-2{margin-left:.5rem}.ml-auto{margin-left:auto}.mt-1{margin-top:.25rem}.mt-1\.5{margin-top:.375rem}.mt-10{margin-top:2.5rem}.mt-12{margin-top:3rem}.mt-14{margin-top:3.5rem}.mt-16{margin-top:4rem}.mt-2{margin-top:.5rem}.mt-20{margin-top:5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-5{margin-top:1.25rem}.mt-6{margin-top:1.5rem}.mt-8{margin-top:2rem}.block{display:block}.inline-block{display:inline-block}.inline{display:inline}.flex{display:flex}.inline-flex{display:inline-flex}.table{display:table}.grid{display:grid}.hidden{display:none}.h-1\.5{height:.375rem}.h-10{height:2.5rem}.h-12{height:3rem}.h-14{height:3.5rem}.h-3{height:.75rem}.h-3\.5{height:.875rem}.h-4{height:1rem}.h-5{height:1.25rem}.h-8{height:2rem}.h-px{height:1px}.min-h-\[3\.25rem\]{min-height:3.25rem}.min-h-screen{min-height:100vh}.w-10{width:2.5rem}.w-12{width:3rem}.w-14{width:3.5rem}.w-3\.5{width:.875rem}.w-3\/4{width:75%}.w-32{width:8rem}.w-4{width:1rem}.w-7{width:1.75rem}.w-full{width:100%}.min-w-0{min-width:0}.max-w-2xl{max-width:42rem}.max-w-3xl{max-width:48rem}.max-w-\[14rem\]{max-width:14rem}.max-w-lg{max-width:32rem}.max-w-md{max-width:28rem}.flex-1{flex:1 1 0%}.shrink-0{flex-shrink:0}.border-collapse{border-collapse:collapse}.origin-left{transform-origin:left}.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))}@keyframes pulse{50%{opacity:.5}}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@keyframes slide-up{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.animate-slide-up{animation:slide-up .16s ease-out}.touch-none{touch-action:none}.grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.items-baseline{align-items:baseline}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1\.5{gap:.375rem}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.gap-5{gap:1.25rem}.gap-6{gap:1.5rem}.gap-x-3{column-gap:.75rem}.gap-x-4{column-gap:1rem}.gap-x-5{column-gap:1.25rem}.gap-x-6{column-gap:1.5rem}.gap-y-1{row-gap:.25rem}.gap-y-2{row-gap:.5rem}.gap-y-3{row-gap:.75rem}.divide-y>:not([hidden])~:not([hidden]){--tw-divide-y-reverse:0;border-top-width:calc(1px * calc(1 - var(--tw-divide-y-reverse)));border-bottom-width:calc(1px * var(--tw-divide-y-reverse))}.divide-rule>:not([hidden])~:not([hidden]){border-color:hsl(var(--rule))}.overflow-x-auto{overflow-x:auto}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rounded{border-radius:.25rem}.rounded-\[1px\]{border-radius:1px}.rounded-sm{border-radius:var(--radius)}.rounded-r-\[4px\]{border-top-right-radius:4px;border-bottom-right-radius:4px}.border{border-width:1px}.border-y{border-top-width:1px}.border-b,.border-y{border-bottom-width:1px}.border-l-2{border-left-width:2px}.border-t{border-top-width:1px}.border-approx{border-color:hsl(var(--approx))}.border-ink{border-color:hsl(var(--ink))}.border-rule{border-color:hsl(var(--rule))}.border-rule-strong{border-color:hsl(var(--rule-strong))}.bg-\[hsl\(var\(--exact\)\)\]{background-color:hsl(var(--exact))}.bg-approx{background-color:hsl(var(--approx))}.bg-background{background-color:hsl(var(--background))}.bg-correct{background-color:hsl(var(--correct))}.bg-ink{background-color:hsl(var(--ink))}.bg-ink-soft{background-color:hsl(var(--ink-soft))}.bg-rule{background-color:hsl(var(--rule))}.bg-surface{background-color:hsl(var(--surface))}.bg-wrong{background-color:hsl(var(--wrong))}.fill-\[hsl\(var\(--approx\)\)\]{fill:hsl(var(--approx))}.fill-\[hsl\(var\(--ink-faint\)\)\]{fill:hsl(var(--ink-faint))}.px-1{padding-left:.25rem;padding-right:.25rem}.px-4{padding-left:1rem;padding-right:1rem}.px-5{padding-left:1.25rem;padding-right:1.25rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.py-10{padding-top:2.5rem;padding-bottom:2.5rem}.py-16{padding-top:4rem;padding-bottom:4rem}.py-2{padding-top:.5rem;padding-bottom:.5rem}.py-2\.5{padding-top:.625rem;padding-bottom:.625rem}.py-24{padding-top:6rem;padding-bottom:6rem}.py-3{padding-top:.75rem;padding-bottom:.75rem}.py-3\.5{padding-top:.875rem;padding-bottom:.875rem}.py-4{padding-top:1rem;padding-bottom:1rem}.py-5{padding-top:1.25rem;padding-bottom:1.25rem}.py-8{padding-top:2rem;padding-bottom:2rem}.pb-24{padding-bottom:6rem}.pb-3{padding-bottom:.75rem}.pl-4{padding-left:1rem}.pr-4{padding-right:1rem}.pt-0\.5{padding-top:.125rem}.pt-16{padding-top:4rem}.pt-8{padding-top:2rem}.text-left{text-align:left}.text-center{text-align:center}.text-right{text-align:right}.font-mono{font-family:var(--font-data),ui-monospace,monospace}.font-question{font-family:var(--font-question),Georgia,serif}.font-sans{font-family:var(--font-ui),system-ui,sans-serif}.text-2xl{font-size:1.5rem;line-height:2rem}.text-3xl{font-size:1.875rem;line-height:2.25rem}.text-5xl{font-size:3rem;line-height:1}.text-6xl{font-size:3.75rem;line-height:1}.text-\[0\.6875rem\]{font-size:.6875rem}.text-\[0\.9375rem\]{font-size:.9375rem}.text-\[1\.0625rem\]{font-size:1.0625rem}.text-\[9px\]{font-size:9px}.text-lg{font-size:1.125rem;line-height:1.75rem}.text-question{font-size:1.75rem;line-height:1.4}.text-question-sm{font-size:1.375rem;line-height:1.45}.text-sm{font-size:.875rem;line-height:1.25rem}.text-xl{font-size:1.25rem;line-height:1.75rem}.text-xs{font-size:.75rem;line-height:1rem}.font-medium{font-weight:500}.font-normal{font-weight:400}.uppercase{text-transform:uppercase}.capitalize{text-transform:capitalize}.leading-none{line-height:1}.leading-relaxed{line-height:1.625}.leading-snug{line-height:1.375}.leading-tight{line-height:1.25}.tracking-\[0\.16em\]{letter-spacing:.16em}.tracking-\[0\.18em\]{letter-spacing:.18em}.tracking-tight{letter-spacing:-.025em}.tracking-wider{letter-spacing:.05em}.text-approx{color:hsl(var(--approx))}.text-correct{color:hsl(var(--correct))}.text-ink{color:hsl(var(--ink))}.text-ink-faint{color:hsl(var(--ink-faint))}.text-ink-soft{color:hsl(var(--ink-soft))}.text-paper{color:hsl(var(--paper))}.text-wrong{color:hsl(var(--wrong))}.underline{text-decoration-line:underline}.line-through{text-decoration-line:line-through}.decoration-wrong\/50{text-decoration-color:hsl(var(--wrong)/.5)}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.opacity-40{opacity:.4}.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)}.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)}.transition-\[transform\2c background-color\]{transition-property:transform,background-color;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-colors{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-opacity{transition-property:opacity;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.duration-100{transition-duration:.1s}.ease-linear{transition-timing-function:linear}@keyframes enter{0%{opacity:var(--tw-enter-opacity,1);transform:translate3d(var(--tw-enter-translate-x,0),var(--tw-enter-translate-y,0),0) scale3d(var(--tw-enter-scale,1),var(--tw-enter-scale,1),var(--tw-enter-scale,1)) rotate(var(--tw-enter-rotate,0))}}@keyframes exit{to{opacity:var(--tw-exit-opacity,1);transform:translate3d(var(--tw-exit-translate-x,0),var(--tw-exit-translate-y,0),0) scale3d(var(--tw-exit-scale,1),var(--tw-exit-scale,1),var(--tw-exit-scale,1)) rotate(var(--tw-exit-rotate,0))}}.duration-100{animation-duration:.1s}.ease-linear{animation-timing-function:linear}.running{animation-play-state:running}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.first\:mt-10:first-child{margin-top:2.5rem}.last\:border-b:last-child{border-bottom-width:1px}.hover\:border-ink:hover{border-color:hsl(var(--ink))}.hover\:border-wrong:hover{border-color:hsl(var(--wrong))}.hover\:bg-ink\/85:hover{background-color:hsl(var(--ink)/.85)}.hover\:bg-surface:hover{background-color:hsl(var(--surface))}.hover\:text-ink:hover{color:hsl(var(--ink))}.hover\:text-ink-soft:hover{color:hsl(var(--ink-soft))}.hover\:text-wrong:hover{color:hsl(var(--wrong))}.hover\:opacity-75:hover{opacity:.75}.hover\:opacity-90:hover{opacity:.9}.disabled\:cursor-not-allowed:disabled{cursor:not-allowed}.disabled\:opacity-40:disabled{opacity:.4}.disabled\:hover\:border-rule-strong:hover:disabled{border-color:hsl(var(--rule-strong))}.disabled\:hover\:text-ink-soft:hover:disabled{color:hsl(var(--ink-soft))}@media (min-width:640px){.sm\:-left-7{left:-1.75rem}.sm\:block{display:block}.sm\:w-20{width:5rem}.sm\:pt-24{padding-top:6rem}.sm\:text-3xl{font-size:1.875rem;line-height:2.25rem}.sm\:text-4xl{font-size:2.25rem;line-height:2.5rem}.sm\:text-6xl{font-size:3.75rem;line-height:1}.sm\:text-question{font-size:1.75rem;line-height:1.4}.sm\:text-question-lg{font-size:2.25rem;line-height:1.32}}