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6)}.w-full{width:100%}.max-w-2xl{max-width:var(--container-2xl)}.max-w-md{max-width:var(--container-md)}.max-w-xs{max-width:var(--container-xs)}.min-w-0{min-width:calc(var(--spacing) * 0)}.flex-1{flex:1}.shrink-0{flex-shrink:0}.animate-\[shake_0\.4s\]{animation:.4s shake}.cursor-default{cursor:default}.resize{resize:both}.grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.flex-col{flex-direction:column}.items-center{align-items:center}.items-start{align-items:flex-start}.items-stretch{align-items:stretch}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-1{gap:calc(var(--spacing) * 1)}.gap-1\.5{gap:calc(var(--spacing) * 1.5)}.gap-2{gap:calc(var(--spacing) * 2)}.gap-2\.5{gap:calc(var(--spacing) * 2.5)}.gap-3{gap:calc(var(--spacing) * 3)}.gap-4{gap:calc(var(--spacing) * 4)}.gap-6{gap:calc(var(--spacing) * 6)}:where(.space-y-0\.5>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * .5) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * .5) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-1>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 1) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 1) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-2>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 2) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 2) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-3>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 3) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 3) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-4>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 4) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 4) * calc(1 - var(--tw-space-y-reverse)))}.overflow-hidden{overflow:hidden}.overflow-y-auto{overflow-y:auto}.rounded-2xl{border-radius:var(--radius-2xl)}.rounded-3xl{border-radius:var(--radius-3xl)}.rounded-full{border-radius:3.40282e38px}.rounded-lg{border-radius:var(--radius-lg)}.rounded-md{border-radius:var(--radius-md)}.rounded-xl{border-radius:var(--radius-xl)}.border{border-style:var(--tw-border-style);border-width:1px}.border-2{border-style:var(--tw-border-style);border-width:2px}.border-amber-200{border-color:var(--color-amber-200)}.border-blue-200{border-color:var(--color-blue-200)}.border-red-200{border-color:var(--color-red-200)}.border-stone-200{border-color:var(--color-stone-200)}.border-stone-200\/50{border-color:#e7e5e480}@supports (color:color-mix(in lab, red, red)){.border-stone-200\/50{border-color:color-mix(in oklab, var(--color-stone-200) 50%, transparent)}}.border-stone-200\/60{border-color:#e7e5e499}@supports (color:color-mix(in lab, red, red)){.border-stone-200\/60{border-color:color-mix(in oklab, var(--color-stone-200) 60%, transparent)}}.border-stone-300{border-color:var(--color-stone-300)}.border-stone-900{border-color:var(--color-stone-900)}.border-yellow-400\/50{border-color:#fac80080}@supports (color:color-mix(in lab, red, red)){.border-yellow-400\/50{border-color:color-mix(in oklab, var(--color-yellow-400) 50%, transparent)}}.bg-amber-50{background-color:var(--color-amber-50)}.bg-amber-100{background-color:var(--color-amber-100)}.bg-black\/40{background-color:#0006}@supports (color:color-mix(in lab, red, red)){.bg-black\/40{background-color:color-mix(in oklab, var(--color-black) 40%, transparent)}}.bg-blue-50{background-color:var(--color-blue-50)}.bg-emerald-100{background-color:var(--color-emerald-100)}.bg-red-50{background-color:var(--color-red-50)}.bg-stone-50{background-color:var(--color-stone-50)}.bg-stone-50\/50{background-color:#fafaf980}@supports (color:color-mix(in lab, red, red)){.bg-stone-50\/50{background-color:color-mix(in oklab, var(--color-stone-50) 50%, transparent)}}.bg-stone-100{background-color:var(--color-stone-100)}.bg-stone-900{background-color:var(--color-stone-900)}.bg-white{background-color:var(--color-white)}.bg-yellow-50\/50{background-color:#fefce880}@supports (color:color-mix(in lab, red, red)){.bg-yellow-50\/50{background-color:color-mix(in oklab, var(--color-yellow-50) 50%, transparent)}}.fill-orange-500{fill:var(--color-orange-500)}.fill-yellow-400{fill:var(--color-yellow-400)}.p-2{padding:calc(var(--spacing) * 2)}.p-2\.5{padding:calc(var(--spacing) * 2.5)}.p-3{padding:calc(var(--spacing) * 3)}.p-3\.5{padding:calc(var(--spacing) * 3.5)}.p-4{padding:calc(var(--spacing) * 4)}.p-5{padding:calc(var(--spacing) * 5)}.p-6{padding:calc(var(--spacing) * 6)}.px-1\.5{padding-inline:calc(var(--spacing) * 1.5)}.px-2{padding-inline:calc(var(--spacing) * 2)}.px-3{padding-inline:calc(var(--spacing) * 3)}.px-4{padding-inline:calc(var(--spacing) * 4)}.px-6{padding-inline:calc(var(--spacing) * 6)}.py-0\.5{padding-block:calc(var(--spacing) * .5)}.py-1{padding-block:calc(var(--spacing) * 1)}.py-1\.5{padding-block:calc(var(--spacing) * 1.5)}.py-2{padding-block:calc(var(--spacing) * 2)}.py-2\.5{padding-block:calc(var(--spacing) * 2.5)}.py-3{padding-block:calc(var(--spacing) * 3)}.pt-2{padding-top:calc(var(--spacing) * 2)}.pt-3{padding-top:calc(var(--spacing) * 3)}.pr-3{padding-right:calc(var(--spacing) * 3)}.pr-\[env\(safe-area-inset-right\)\]{padding-right:env(safe-area-inset-right)}.pb-4{padding-bottom:calc(var(--spacing) * 4)}.pb-12{padding-bottom:calc(var(--spacing) * 12)}.pl-1{padding-left:calc(var(--spacing) * 1)}.pl-\[env\(safe-area-inset-left\)\]{padding-left:env(safe-area-inset-left)}.text-center{text-align:center}.font-mono{font-family:var(--font-geist-mono)}.font-sans{font-family:var(--font-lesson-ui,var(--font-geist-sans)), ui-sans-serif, system-ui}.text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.text-3xl{font-size:var(--text-3xl);line-height:var(--tw-leading,var(--text-3xl--line-height))}.text-base{font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height))}.text-lg{font-size:var(--text-lg);line-height:var(--tw-leading,var(--text-lg--line-height))}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-xl{font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height))}.text-xs{font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height))}.text-\[10px\]{font-size:10px}.text-\[11px\]{font-size:11px}.leading-\[3rem\]{--tw-leading:3rem;line-height:3rem}.leading-relaxed{--tw-leading:var(--leading-relaxed);line-height:var(--leading-relaxed)}.leading-snug{--tw-leading:var(--leading-snug);line-height:var(--leading-snug)}.leading-tight{--tw-leading:var(--leading-tight);line-height:var(--leading-tight)}.font-black{--tw-font-weight:var(--font-weight-black);font-weight:var(--font-weight-black)}.font-bold{--tw-font-weight:var(--font-weight-bold);font-weight:var(--font-weight-bold)}.font-extrabold{--tw-font-weight:var(--font-weight-extrabold);font-weight:var(--font-weight-extrabold)}.font-medium{--tw-font-weight:var(--font-weight-medium);font-weight:var(--font-weight-medium)}.font-semibold{--tw-font-weight:var(--font-weight-semibold);font-weight:var(--font-weight-semibold)}.tracking-tight{--tw-tracking:var(--tracking-tight);letter-spacing:var(--tracking-tight)}.tracking-wider{--tw-tracking:var(--tracking-wider);letter-spacing:var(--tracking-wider)}.tracking-widest{--tw-tracking:var(--tracking-widest);letter-spacing:var(--tracking-widest)}.break-all{word-break:break-all}.text-\[var\(--arcade-accent\)\]{color:var(--arcade-accent)}.text-\[var\(--arcade-text\)\]{color:var(--arcade-text)}.text-\[var\(--arcade-text-dim\)\]{color:var(--arcade-text-dim)}.text-amber-900{color:var(--color-amber-900)}.text-blue-900{color:var(--color-blue-900)}.text-emerald-900{color:var(--color-emerald-900)}.text-orange-500{color:var(--color-orange-500)}.text-red-600{color:var(--color-red-600)}.text-red-900{color:var(--color-red-900)}.text-rose-300{color:var(--color-rose-300)}.text-stone-50{color:var(--color-stone-50)}.text-stone-300{color:var(--color-stone-300)}.text-stone-400{color:var(--color-stone-400)}.text-stone-500{color:var(--color-stone-500)}.text-stone-600{color:var(--color-stone-600)}.text-stone-800{color:var(--color-stone-800)}.text-stone-900{color:var(--color-stone-900)}.text-transparent{color:#0000}.text-white\/55{color:#ffffff8c}@supports (color:color-mix(in lab, red, red)){.text-white\/55{color:color-mix(in oklab, var(--color-white) 55%, transparent)}}.text-yellow-500{color:var(--color-yellow-500)}.text-yellow-900{color:var(--color-yellow-900)}.uppercase{text-transform:uppercase}.tabular-nums{--tw-numeric-spacing:tabular-nums;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.opacity-50{opacity:.5}.grayscale{--tw-grayscale:grayscale(100%);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-blur-sm{--tw-backdrop-blur:blur(var(--blur-sm));-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-\[box-shadow\,border-color\]{transition-property:box-shadow,border-color;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-all{transition-property:all;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-colors{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-transform{transition-property:transform,translate,scale,rotate;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.duration-200{--tw-duration:.2s;transition-duration:.2s}.select-none{-webkit-user-select:none;user-select:none}.before\:absolute:before{content:var(--tw-content);position:absolute}.before\:inset-0:before{content:var(--tw-content);inset:calc(var(--spacing) * 0)}.before\:-z-10:before{content:var(--tw-content);z-index:calc(10 * -1)}.before\:bg-\[var\(--background\)\]:before{content:var(--tw-content);background-color:var(--background)}.before\:shadow-\[0_8px_16px_-8px_var\(--background\)\]:before{content:var(--tw-content);--tw-shadow:0 8px 16px -8px var(--tw-shadow-color,var(--background));box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}@media (hover:hover){.hover\:border-\[var\(--stage-cta\)\]:hover{border-color:var(--stage-cta)}.hover\:bg-blue-100:hover{background-color:var(--color-blue-100)}.hover\:bg-red-100:hover{background-color:var(--color-red-100)}.hover\:bg-stone-50:hover{background-color:var(--color-stone-50)}.hover\:bg-stone-100:hover{background-color:var(--color-stone-100)}.hover\:text-red-600:hover{color:var(--color-red-600)}.hover\:text-stone-900:hover{color:var(--color-stone-900)}.hover\:shadow-\[var\(--stage-cta\)\]\/10:hover{--tw-shadow-alpha:10%;--tw-shadow:var(--stage-cta);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.hover\:shadow-lg:hover{--tw-shadow:0 10px 15px -3px var(--tw-shadow-color,#0000001a), 0 4px 6px -4px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}}.active\:scale-95:active{--tw-scale-x:95%;--tw-scale-y:95%;--tw-scale-z:95%;scale:var(--tw-scale-x) var(--tw-scale-y)}.active\:scale-\[0\.98\]:active{scale:.98}.active\:bg-stone-100:active{background-color:var(--color-stone-100)}.disabled\:opacity-30:disabled{opacity:.3}.disabled\:opacity-40:disabled{opacity:.4}.disabled\:active\:scale-100:disabled:active{--tw-scale-x:100%;--tw-scale-y:100%;--tw-scale-z:100%;scale:var(--tw-scale-x) var(--tw-scale-y)}@media (min-width:40rem){.sm\:flex-row{flex-direction:row}.sm\:py-3{padding-block:calc(var(--spacing) * 3)}.sm\:text-4xl{font-size:var(--text-4xl);line-height:var(--tw-leading,var(--text-4xl--line-height))}}@media (prefers-color-scheme:dark){.dark\:border-amber-900{border-color:var(--color-amber-900)}.dark\:border-blue-900{border-color:var(--color-blue-900)}.dark\:border-red-900{border-color:var(--color-red-900)}.dark\:border-stone-100{border-color:var(--color-stone-100)}.dark\:border-stone-700{border-color:var(--color-stone-700)}.dark\:border-stone-800{border-color:var(--color-stone-800)}.dark\:border-stone-800\/50{border-color:#29252480}@supports (color:color-mix(in lab, red, red)){.dark\:border-stone-800\/50{border-color:color-mix(in oklab, var(--color-stone-800) 50%, transparent)}}.dark\:border-stone-800\/60{border-color:#29252499}@supports (color:color-mix(in lab, red, red)){.dark\:border-stone-800\/60{border-color:color-mix(in oklab, var(--color-stone-800) 60%, transparent)}}.dark\:border-yellow-500\/30{border-color:#edb2004d}@supports (color:color-mix(in lab, red, red)){.dark\:border-yellow-500\/30{border-color:color-mix(in oklab, var(--color-yellow-500) 30%, transparent)}}.dark\:bg-amber-950\/40{background-color:#46190166}@supports (color:color-mix(in lab, red, red)){.dark\:bg-amber-950\/40{background-color:color-mix(in oklab, var(--color-amber-950) 40%, transparent)}}.dark\:bg-amber-950\/50{background-color:#46190180}@supports (color:color-mix(in lab, red, red)){.dark\:bg-amber-950\/50{background-color:color-mix(in oklab, var(--color-amber-950) 50%, transparent)}}.dark\:bg-blue-950\/30{background-color:#1624564d}@supports (color:color-mix(in lab, red, red)){.dark\:bg-blue-950\/30{background-color:color-mix(in oklab, var(--color-blue-950) 30%, transparent)}}.dark\:bg-emerald-950\/50{background-color:#002c2280}@supports (color:color-mix(in lab, red, red)){.dark\:bg-emerald-950\/50{background-color:color-mix(in oklab, var(--color-emerald-950) 50%, transparent)}}.dark\:bg-red-950\/30{background-color:#4608094d}@supports (color:color-mix(in lab, red, red)){.dark\:bg-red-950\/30{background-color:color-mix(in oklab, var(--color-red-950) 30%, transparent)}}.dark\:bg-stone-100{background-color:var(--color-stone-100)}.dark\:bg-stone-800{background-color:var(--color-stone-800)}.dark\:bg-stone-900{background-color:var(--color-stone-900)}.dark\:bg-stone-900\/50{background-color:#1c191780}@supports (color:color-mix(in lab, red, red)){.dark\:bg-stone-900\/50{background-color:color-mix(in oklab, var(--color-stone-900) 50%, transparent)}}.dark\:bg-stone-900\/60{background-color:#1c191799}@supports (color:color-mix(in lab, red, red)){.dark\:bg-stone-900\/60{background-color:color-mix(in oklab, var(--color-stone-900) 60%, transparent)}}.dark\:bg-yellow-500\/10{background-color:#edb2001a}@supports (color:color-mix(in lab, red, red)){.dark\:bg-yellow-500\/10{background-color:color-mix(in oklab, var(--color-yellow-500) 10%, transparent)}}.dark\:text-amber-100{color:var(--color-amber-100)}.dark\:text-amber-200{color:var(--color-amber-200)}.dark\:text-blue-200{color:var(--color-blue-200)}.dark\:text-emerald-200{color:var(--color-emerald-200)}.dark\:text-red-200{color:var(--color-red-200)}.dark\:text-red-400{color:var(--color-red-400)}.dark\:text-stone-100{color:var(--color-stone-100)}.dark\:text-stone-200{color:var(--color-stone-200)}.dark\:text-stone-300{color:var(--color-stone-300)}.dark\:text-stone-400{color:var(--color-stone-400)}.dark\:text-stone-500{color:var(--color-stone-500)}.dark\:text-stone-600{color:var(--color-stone-600)}.dark\:text-stone-900{color:var(--color-stone-900)}.dark\:text-yellow-100{color:var(--color-yellow-100)}@media (hover:hover){.dark\:hover\:bg-blue-950\/50:hover{background-color:#16245680}@supports (color:color-mix(in lab, red, red)){.dark\:hover\:bg-blue-950\/50:hover{background-color:color-mix(in oklab, var(--color-blue-950) 50%, transparent)}}.dark\:hover\:bg-red-950\/50:hover{background-color:#46080980}@supports (color:color-mix(in lab, red, red)){.dark\:hover\:bg-red-950\/50:hover{background-color:color-mix(in oklab, var(--color-red-950) 50%, transparent)}}.dark\:hover\:bg-stone-800:hover{background-color:var(--color-stone-800)}.dark\:hover\:bg-stone-800\/50:hover{background-color:#29252480}@supports (color:color-mix(in lab, red, red)){.dark\:hover\:bg-stone-800\/50:hover{background-color:color-mix(in oklab, var(--color-stone-800) 50%, transparent)}}.dark\:hover\:bg-stone-900:hover{background-color:var(--color-stone-900)}.dark\:hover\:text-red-400:hover{color:var(--color-red-400)}.dark\:hover\:text-stone-100:hover{color:var(--color-stone-100)}}.dark\:active\:bg-stone-800:active{background-color:var(--color-stone-800)}}}:root{--background:#fefbf8;--foreground:#181611;--lesson-control-h:3.25rem;--lesson-radius:1rem;--lesson-shadow-card:0 12px 40px -16px #1a213524;--lesson-progress-track:#dbe6f2;--lesson-progress-track-border:#b6c6d7}@supports (color:lab(0% 0 0)){:root{--background:lab(98.8548% .282347 1.88134);--foreground:lab(7.24722% .654019 3.2768);--lesson-shadow-card:0 12px 40px -16px lab(12.6688% 2.11811 -14.482/.14);--lesson-progress-track:lab(90.6998% -2.11787 -7.10534);--lesson-progress-track-border:lab(79.0828% -3.04544 -10.5945)}}@media (prefers-color-scheme:dark){:root{--background:#100d09;--foreground:#f0eeeb;--lesson-shadow-card:0 14px 44px -14px #0000058c;--lesson-progress-track:#232838;--lesson-progress-track-border:#3a4258}@supports (color:lab(0% 0 0)){:root{--background:lab(3.71207% .440523 2.06128);--foreground:lab(94.2147% .282645 1.88154);--lesson-shadow-card:0 14px 44px -14px lab(.0263863% 1.17009 -3.23967/.55);--lesson-progress-track:lab(16.2629% 1.08327 -10.9909);--lesson-progress-track-border:lab(27.7919% 1.42078 -14.6618)}}}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-6px)}40%,80%{transform:translate(6px)}}@keyframes success-ring{0%{box-shadow:0 0 #54bf5c6b;box-shadow:0 0 lab(69.5705% -47.7195 39.7963/.42)}to{box-shadow:0 0 0 14px #54bf5c00;box-shadow:0 0 0 14px lab(69.5705% -47.7195 39.7963/0)}}@media (prefers-reduced-motion:no-preference){.task-card-success-flash{animation:.55s ease-out success-ring}.task-card-wrong-nudge{animation:.36s ease-in-out shake}}html,body{overflow-x:clip}body{background:var(--background);color:var(--foreground);-webkit-tap-highlight-color:transparent}button{-webkit-tap-highlight-color:transparent;touch-action:manipulation}main.stage-atmosphere[data-tier="1"]{--stage-surface:var(--background);--stage-muted:#4d667f;--stage-cta:#2c2edc;--stage-cta-hover:#2513cb;--stage-cta-fg:#f6f8ff;--stage-badge-bg:#e8eeff;--stage-badge-fg:#2c2edc;--stage-badge-border:#baccff;--stage-card-border:#d1ddff;--stage-divider:#d1ddff}@supports (color:lab(0% 0 0)){main.stage-atmosphere[data-tier="1"]{--stage-muted:lab(41.8875% -4.09435 -17.2927);--stage-cta:lab(31.5561% 47.5474 -88.9259);--stage-cta-hover:lab(25.1367% 53.9071 -89.4206);--stage-cta-fg:lab(97.6253% .0680089 -3.78776);--stage-badge-bg:lab(93.8889% .967801 -18.6229);--stage-badge-fg:lab(31.5561% 47.5474 -88.9259);--stage-badge-border:lab(81.856% 3.94115 -36.5398);--stage-card-border:lab(88.0862% 1.01185 -18.604);--stage-divider:lab(88.0862% 1.01185 -18.604)}}main.stage-atmosphere[data-tier="2"]{--stage-surface:#fdf0ff;--stage-muted:#7c4f86;--stage-cta:#730089;--stage-cta-hover:#610074;--stage-cta-fg:#fcf6fd;--stage-badge-bg:#fad6ff;--stage-badge-fg:#730089;--stage-badge-border:#e89cf9;--stage-card-border:#ebb9f7;--stage-divider:#ebb9f7}@supports (color:lab(0% 0 0)){main.stage-atmosphere[data-tier="2"]{--stage-surface:lab(95.8494% 13.1659 -11.9615);--stage-muted:lab(40.5377% 26.8404 -23.3506);--stage-cta:lab(25.6003% 72.1906 -57.2604);--stage-cta-hover:lab(19.4861% 73.6069 -57.3958);--stage-cta-fg:lab(97.549% 2.62067 -2.415);--stage-badge-bg:lab(89.6251% 21.1556 -19.0042);--stage-badge-fg:lab(25.6003% 72.1906 -57.2604);--stage-badge-border:lab(74.6228% 40.1909 -35.0806);--stage-card-border:lab(81.2069% 26.5465 -23.6273);--stage-divider:lab(81.2069% 26.5465 -23.6273)}}main.stage-atmosphere[data-tier="3"]{--stage-surface:#ffe1ed;--stage-muted:#a33460;--stage-cta:#9e0051;--stage-cta-hover:#804;--stage-cta-fg:#fff6f8;--stage-badge-bg:#ffcadc;--stage-badge-fg:#9e0051;--stage-badge-border:#ff78a9;--stage-card-border:#ff98ba;--stage-divider:#ff98ba}@supports (color:lab(0% 0 0)){main.stage-atmosphere[data-tier="3"]{--stage-surface:lab(92.9431% 33.2821 .370753);--stage-muted:lab(40.1122% 48.6723 .692523);--stage-cta:lab(33.0474% 79.0963 1.50159);--stage-cta-hover:lab(27.2456% 78.6461 1.60741);--stage-cta-fg:lab(97.5544% 3.37884 .0330448);--stage-badge-bg:lab(86.514% 49.4896 .597262);--stage-badge-fg:lab(33.0474% 79.0963 1.50159);--stage-badge-border:lab(68.4835% 65.1499 .890577);--stage-card-border:lab(74.9137% 49.3513 .611615);--stage-divider:lab(74.9137% 49.3513 .611615)}}@media (prefers-color-scheme:dark){main.stage-atmosphere[data-tier="1"]{--stage-surface:var(--background);--stage-muted:#87a1bd;--stage-cta:#6483ff;--stage-cta-hover:#7695ff;--stage-cta-fg:#050920;--stage-badge-bg:#111a50;--stage-badge-fg:#baccff;--stage-badge-border:#1f2d87;--stage-card-border:#1b275f;--stage-divider:#1b275f}@supports (color:lab(0% 0 0)){main.stage-atmosphere[data-tier="1"]{--stage-muted:lab(65.1106% -4.54572 -17.4413);--stage-cta:lab(56.0294% 32.2968 -88.5812);--stage-cta-hover:lab(62.0079% 29.8933 -88.6498);--stage-cta-fg:lab(2.73986% 2.93869 -14.389);--stage-badge-bg:lab(11.6107% 13.4596 -35.4236);--stage-badge-fg:lab(81.856% 3.94115 -36.5398);--stage-badge-border:lab(22.3982% 21.7028 -53.1283);--stage-card-border:lab(17.5831% 11.1292 -35.4963);--stage-divider:lab(17.5831% 11.1292 -35.4963)}}main.stage-atmosphere[data-tier="2"]{--stage-surface:#200d24;--stage-muted:#ba8ac5;--stage-cta:#bd33da;--stage-cta-hover:#ce47eb;--stage-cta-fg:#140418;--stage-badge-bg:#350a3e;--stage-badge-fg:#f4b1ff;--stage-badge-border:#5f0071;--stage-card-border:#43184c;--stage-divider:#43184c}@supports (color:lab(0% 0 0)){main.stage-atmosphere[data-tier="2"]{--stage-surface:lab(6.54497% 13.0926 -11.4415);--stage-muted:lab(63.7863% 26.6334 -23.533);--stage-cta:lab(49.4218% 69.3988 -57.3987);--stage-cta-hover:lab(55.3061% 69.0234 -57.4823);--stage-cta-fg:lab(2.65057% 7.8884 -8.04331);--stage-badge-bg:lab(11.3464% 27.6808 -22.976);--stage-badge-fg:lab(80.437% 40.1302 -35.1311);--stage-badge-border:lab(20.899% 57.1276 -45.7869);--stage-card-border:lab(17.2142% 27.3798 -23.0623);--stage-divider:lab(17.2142% 27.3798 -23.0623)}}main.stage-atmosphere[data-tier="3"]{--stage-surface:#270b15;--stage-muted:#d2849c;--stage-cta:#e7007a;--stage-cta-hover:#fb2189;--stage-cta-fg:#1b020a;--stage-badge-bg:#430120;--stage-badge-fg:#ffafcb;--stage-badge-border:#710037;--stage-card-border:#52102c;--stage-divider:#52102c}@supports (color:lab(0% 0 0)){main.stage-atmosphere[data-tier="3"]{--stage-surface:lab(6.65436% 15.9608 .192267);--stage-muted:lab(63.9428% 33.1019 .387406);--stage-cta:lab(50.4509% 80.1156 1.30519);--stage-cta-hover:lab(56.2517% 80.3767 1.26251);--stage-cta-fg:lab(2.72961% 9.78869 .115848);--stage-badge-bg:lab(11.7405% 32.1 .513145);--stage-badge-fg:lab(80.7138% 49.424 .603998);--stage-badge-border:lab(22.0776% 63.1922 1.22024);--stage-card-border:lab(17.5412% 32.327 .478458);--stage-divider:lab(17.5412% 32.327 .478458)}}}main.stage-atmosphere[data-tier="1"],main.stage-atmosphere[data-tier="2"],main.stage-atmosphere[data-tier="3"]{background-color:var(--stage-surface);transition:background-color .5s,color .45s}@media (prefers-reduced-motion:reduce){main.stage-atmosphere[data-tier="1"],main.stage-atmosphere[data-tier="2"],main.stage-atmosphere[data-tier="3"]{transition:none}}.stage-stat-muted,.stage-title-line{color:var(--stage-muted)}.tier-badge-themed{background-color:var(--stage-badge-bg);color:var(--stage-badge-fg);border:1px solid var(--stage-badge-border)}.lesson-btn-3d{box-sizing:border-box;min-height:var(--lesson-control-h);border-radius:var(--lesson-radius);letter-spacing:.06em;text-transform:uppercase;border-style:solid;border-width:2px 2px 4px;justify-content:center;align-items:center;padding-inline:1rem;font-size:.875rem;font-weight:800;transition:background-color .2s,border-color .2s,border-bottom-width .1s,margin-top .1s,transform .12s,filter .15s;display:inline-flex}.lesson-btn-3d.lesson-btn-3d--icon-only{width:var(--lesson-control-h);min-width:var(--lesson-control-h);text-transform:none;letter-spacing:normal;padding-inline:0;font-size:1rem}.lesson-btn-3d:active:not(:disabled){border-bottom-width:0;margin-top:4px}@media (prefers-reduced-motion:reduce){.lesson-btn-3d{transition:none}.lesson-btn-3d:active:not(:disabled){transform:none}}.lesson-btn-3d--neutral{color:#3a4258;color:lab(27.7919% 1.42078 -14.6618);background-color:#fefbf8;background-color:lab(98.8548% .282347 1.88134);border-color:#ccd1df #ccd1df #9198ab;border-color:lab(83.646% .212342 -7.53312) lab(83.646% .212342 -7.53312) lab(62.6979% .504017 -11.208)}.lesson-btn-3d--neutral:hover:not(:disabled){filter:brightness(.97)}@media (prefers-color-scheme:dark){.lesson-btn-3d--neutral{color:#dfe4f2;color:lab(90.6066% .203431 -7.53789);background-color:#1b1f29;background-color:lab(11.7043% .574164 -7.37579);border-color:#414758 #414758 #080c1a;border-color:lab(30.201% .784457 -11.0916) lab(30.201% .784457 -11.0916) lab(3.54342% 1.10503 -8.65549)}.lesson-btn-3d--neutral:hover:not(:disabled){filter:brightness(1.06)}}.strubbel-cta-primary{background-color:var(--stage-cta);color:var(--stage-cta-fg);border-color:var(--stage-cta)}@supports (color:color-mix(in lab, red, red)){.strubbel-cta-primary{border-color:color-mix(in oklch, var(--stage-cta) 78%, black)}}.strubbel-cta-primary{border-bottom-color:var(--stage-cta-hover);transition:background-color .25s,transform .15s,border-bottom-width .1s,margin-top .1s,border-color .2s}.strubbel-cta-primary:active:not(:disabled){border-bottom-width:0;margin-top:4px}.strubbel-cta-primary:hover:not(:disabled){background-color:var(--stage-cta-hover)}.strubbel-cta-primary:disabled{opacity:.55;cursor:not-allowed;filter:saturate(.65);box-shadow:inset 0 0 0 1px var(--stage-cta-fg);border-bottom-color:#0000}@supports (color:color-mix(in lab, red, red)){.strubbel-cta-primary:disabled{box-shadow:inset 0 0 0 1px color-mix(in oklch, var(--stage-cta-fg) 22%, transparent)}}.lesson-input{box-sizing:border-box;min-height:var(--lesson-control-h);border-radius:var(--lesson-radius)}.lesson-tile-3d{box-sizing:border-box;min-height:var(--lesson-control-h);border-radius:var(--lesson-radius);background-color:#fefbf8;background-color:lab(98.8548% .282347 1.88134);border:2px solid #ccd1df;border:2px solid lab(83.646% .212342 -7.53312);border-bottom:4px solid oklch(68% .03 270);transition:border-color .15s,border-bottom-width .1s,margin-top .1s,background-color .15s}.lesson-tile-3d:active:not(:disabled){border-bottom-width:0;margin-top:4px}@media (prefers-color-scheme:dark){.lesson-tile-3d{background-color:#171a24;background-color:lab(9.38142% .620984 -7.35962);border-color:#414758 #414758 #080c1a;border-color:lab(30.201% .784457 -11.0916) lab(30.201% .784457 -11.0916) lab(3.54342% 1.10503 -8.65549)}}.strubbel-bottom-sticky-cta{z-index:20;padding-bottom:env(safe-area-inset-bottom);background:linear-gradient(to top, var(--stage-surface) 80%, transparent);margin-left:-1rem;margin-right:-1rem;padding-top:.5rem;padding-left:1rem;padding-right:1rem;position:sticky;bottom:0}main.stage-arcade .strubbel-bottom-sticky-cta{background:linear-gradient(to top, var(--arcade-bg) 80%, transparent)}.strubbel-progress-bar-bg{background-color:var(--lesson-progress-track);border:2px solid var(--lesson-progress-track-border);border-radius:9999px;width:100%;height:14px;position:relative;overflow:hidden;box-shadow:inset 0 1px 2px #0000000f;box-shadow:inset 0 1px 2px lab(0% 0 0/.06)}.strubbel-progress-bar-fill{background:linear-gradient(180deg, var(--stage-cta), var(--stage-cta))}@supports (color:color-mix(in lab, red, red)){.strubbel-progress-bar-fill{background:linear-gradient(180deg, color-mix(in oklch, var(--stage-cta) 92%, white), var(--stage-cta))}}.strubbel-progress-bar-fill{height:100%;box-shadow:inset 0 -3px 0 0 var(--stage-cta-hover), 0 0 12px var(--stage-cta);border-radius:9999px;transition:width .5s cubic-bezier(.4,0,.2,1)}@supports (color:color-mix(in lab, red, red)){.strubbel-progress-bar-fill{box-shadow:inset 0 -3px 0 0 color-mix(in oklch, var(--stage-cta-hover) 55%, transparent), 0 0 12px color-mix(in oklch, var(--stage-cta) 35%, transparent)}}.strubbel-progress-bar-glow{background:linear-gradient(90deg,#0000,#ffffff4d,#0000);animation:2s infinite shimmer;position:absolute;inset:0}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.strubbel-stage-scroll{-webkit-overflow-scrolling:touch;overscroll-behavior-y:contain;scroll-padding-top:.75rem;scroll-padding-bottom:6rem}@media (prefers-reduced-motion:no-preference){@keyframes strubbel-cta-ready-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.015)}}.lesson-btn-3d.strubbel-cta-primary.strubbel-cta-awaiting-input:not(:disabled){animation:2.4s ease-in-out infinite strubbel-cta-ready-pulse}}.strubbel-input-anchor{scroll-margin-bottom:7rem}.strubbel-prompt-sticky{z-index:10;background-color:var(--stage-surface);margin-left:-.25rem;margin-right:-.25rem;padding:.25rem .25rem .5rem;position:sticky;top:0}.lesson-prompt-card{box-shadow:var(--lesson-shadow-card);border-width:2px}@media (prefers-reduced-motion:reduce){.lesson-btn-3d.strubbel-cta-primary.strubbel-cta-awaiting-input:not(:disabled){animation:none}}main.stage-atmosphere[data-tier="2"] [data-prompt-card],main.stage-atmosphere[data-tier="3"] [data-prompt-card],main.stage-atmosphere[data-tier="2"] [data-worksheet-card],main.stage-atmosphere[data-tier="3"] [data-worksheet-card]{border-color:var(--stage-card-border)}.stage-example-rule{border-color:var(--stage-divider)}@supports (color:color-mix(in lab, red, red)){.stage-example-rule{border-color:color-mix(in oklch, var(--stage-divider) 85%, transparent)}}main.stage-arcade{--arcade-bg:#03051b;--arcade-bg-2:#080e2c;--arcade-card:#0d142c;--arcade-card-strong:#141d3b;--arcade-border:#232f5b;--arcade-border-soft:#192241;--arcade-text:#f1f5ff;--arcade-text-dim:#8e98b2;--arcade-track:#161d37}@supports (color:lab(0% 0 0)){main.stage-arcade{--arcade-bg:lab(1.73012% 2.57777 -11.9848);--arcade-bg-2:lab(4.73447% 5.07806 -20.2898);--arcade-card:lab(6.76008% 3.85679 -17.7427);--arcade-card-strong:lab(11.2278% 4.96501 -21.4365);--arcade-border:lab(20.3038% 6.62003 -28.582);--arcade-border-soft:lab(13.5735% 4.57689 -21.4842);--arcade-text:lab(96.4366% .12508 -5.66855);--arcade-text-dim:lab(62.6266% .848979 -14.8666);--arcade-track:lab(11.3756% 3.43999 -17.9571)}}main.stage-arcade[data-tier="1"]{--arcade-accent:#71dfff;--arcade-accent-strong:#00cdfc;--arcade-accent-fg:#00080d}@supports (color:lab(0% 0 0)){main.stage-arcade[data-tier="1"]{--arcade-accent:lab(83.5477% -46.3414 -51.0925);--arcade-accent-strong:lab(75.4339% -49.109 -57.5896);--arcade-accent-fg:lab(1.61137% -2.33272 -4.51235)}}main.stage-arcade[data-tier="2"]{--arcade-accent:#eb8bff;--arcade-accent-strong:#e649ff;--arcade-accent-fg:#0d0111}@supports (color:lab(0% 0 0)){main.stage-arcade[data-tier="2"]{--arcade-accent:lab(69.5673% 82.8281 -68.9787);--arcade-accent-strong:lab(59.7107% 89.4619 -73.3679);--arcade-accent-fg:lab(1.29633% 5.22396 -5.44286)}}main.stage-arcade[data-tier="3"]{--arcade-accent:#ff967b;--arcade-accent-strong:#ff6e48;--arcade-accent-fg:#120100}@supports (color:lab(0% 0 0)){main.stage-arcade[data-tier="3"]{--arcade-accent:lab(72.0439% 81.6078 81.7114);--arcade-accent-strong:lab(64.9374% 85.2611 103.029);--arcade-accent-fg:lab(1.40882% 6.18365 2.50943)}}main.stage-arcade{overscroll-behavior:none;touch-action:pan-y;background-color:var(--arcade-bg);background-image:radial-gradient(circle at 50% -10%, var(--arcade-accent), transparent 55%), radial-gradient(circle at 100% 110%, var(--arcade-accent), transparent 55%), linear-gradient(var(--arcade-border-soft) 1px, transparent 1px), linear-gradient(90deg, var(--arcade-border-soft) 1px, transparent 1px)}@supports (color:color-mix(in lab, red, red)){main.stage-arcade{background-image:radial-gradient(circle at 50% -10%, color-mix(in oklch, var(--arcade-accent) 22%, transparent), transparent 55%), radial-gradient(circle at 100% 110%, color-mix(in oklch, var(--arcade-accent) 14%, transparent), transparent 55%), linear-gradient(var(--arcade-border-soft) 1px, transparent 1px), linear-gradient(90deg, var(--arcade-border-soft) 1px, transparent 1px)}}main.stage-arcade{color:var(--arcade-text);background-position:0 0,0 0,-1px -1px,-1px -1px;background-size:auto,auto,32px 32px,32px 32px}.arcade-hud{align-items:center;gap:.75rem;padding-block:.5rem;display:flex}.arcade-icon-btn{width:2.5rem;height:2.5rem;color:var(--arcade-text-dim);background-color:var(--arcade-card);border-radius:.75rem;justify-content:center;align-items:center;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.arcade-icon-btn{background-color:color-mix(in oklch, var(--arcade-card) 75%, transparent)}}.arcade-icon-btn{border:1px solid var(--arcade-border-soft);transition:color .2s,background-color .2s,border-color .2s}.arcade-icon-btn:hover{color:var(--arcade-text);border-color:var(--arcade-border);background-color:var(--arcade-card-strong)}.arcade-progress-bg{background-color:var(--arcade-track);border:1px solid var(--arcade-border);border-radius:9999px;width:100%;height:14px;position:relative;overflow:hidden;box-shadow:inset 0 1px #0006;box-shadow:inset 0 1px lab(0% 0 0/.4)}.arcade-progress-fill{background:linear-gradient(180deg, var(--arcade-accent), var(--arcade-accent));border-radius:9999px;height:100%;position:relative}@supports (color:color-mix(in lab, red, red)){.arcade-progress-fill{background:linear-gradient(180deg, color-mix(in oklch, var(--arcade-accent) 92%, white), var(--arcade-accent))}}.arcade-progress-fill{box-shadow:0 0 12px var(--arcade-accent), 0 0 28px var(--arcade-accent), inset 0 -3px 0 var(--arcade-accent-strong)}@supports (color:color-mix(in lab, red, red)){.arcade-progress-fill{box-shadow:0 0 12px color-mix(in oklch, var(--arcade-accent) 70%, transparent), 0 0 28px color-mix(in oklch, var(--arcade-accent) 35%, transparent), inset 0 -3px 0 color-mix(in oklch, var(--arcade-accent-strong) 60%, transparent)}}.arcade-progress-fill{transition:width .5s cubic-bezier(.4,0,.2,1);overflow:hidden}.arcade-progress-fill:after{content:"";border-radius:inherit;opacity:0;pointer-events:none;background:linear-gradient(90deg,#0000 0%,#ffffff8c 50%,#0000 100%);background:linear-gradient(90deg,#0000 0%,lab(100% 0 0/.55) 50%,#0000 100%);position:absolute;inset:0;transform:translate(-100%)}.arcade-progress-fill[data-grew=true]:after{animation:.75s ease-out arcade-progress-shimmer}@keyframes arcade-progress-shimmer{0%{opacity:0;transform:translate(-100%)}30%{opacity:1}to{opacity:0;transform:translate(120%)}}@media (prefers-reduced-motion:reduce){.arcade-progress-fill[data-grew=true]:after{animation:none}}.arcade-chip{background-color:var(--arcade-card);border-radius:9999px;align-items:center;gap:.35rem;padding:.25rem .65rem;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.arcade-chip{background-color:color-mix(in oklch, var(--arcade-card) 80%, transparent)}}.arcade-chip{border:1px solid var(--arcade-border);color:var(--arcade-text);letter-spacing:.08em;text-transform:uppercase;font-size:.75rem;font-weight:800}.arcade-chip--accent{border-color:var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-chip--accent{border-color:color-mix(in oklch, var(--arcade-accent) 60%, transparent)}}.arcade-chip--accent{color:var(--arcade-accent);box-shadow:0 0 14px -4px var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-chip--accent{box-shadow:0 0 14px -4px color-mix(in oklch, var(--arcade-accent) 60%, transparent)}}.arcade-chip[data-pulse=true]{animation:.6s cubic-bezier(.2,.8,.3,1.6) both arcade-chip-pulse}@keyframes arcade-chip-pulse{0%{transform:scale(1)}35%{filter:brightness(1.45) drop-shadow(0 0 12px color-mix(in oklch, var(--arcade-accent) 70%, transparent));transform:scale(1.22)}to{transform:scale(1)}}@media (prefers-reduced-motion:reduce){.arcade-chip[data-pulse=true]{animation:none}}.arcade-tag-line{letter-spacing:.18em;text-transform:uppercase;color:var(--arcade-text-dim);font-size:.7rem;font-weight:800}.arcade-tag-line span{color:var(--arcade-accent);text-shadow:0 0 12px var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-tag-line span{text-shadow:0 0 12px color-mix(in oklch, var(--arcade-accent) 60%, transparent)}}.arcade-card{background-color:var(--arcade-card);border:1px solid var(--arcade-border);color:var(--arcade-text);box-shadow:inset 0 1px 0 var(--arcade-text), 0 18px 40px -22px #000000b3, 0 0 0 1px var(--arcade-accent), 0 0 24px -6px var(--arcade-accent);border-radius:1.25rem;padding:1rem;position:relative;overflow:hidden}@supports (color:lab(0% 0 0)){.arcade-card{box-shadow:inset 0 1px 0 var(--arcade-text), 0 18px 40px -22px lab(0% 0 0/.7), 0 0 0 1px var(--arcade-accent), 0 0 24px -6px var(--arcade-accent)}}@supports (color:color-mix(in lab, red, red)){.arcade-card{box-shadow:inset 0 1px 0 color-mix(in oklch, var(--arcade-text) 8%, transparent), 0 18px 40px -22px lab(0% 0 0/.7), 0 0 0 1px color-mix(in oklch, var(--arcade-accent) 18%, transparent), 0 0 24px -6px color-mix(in oklch, var(--arcade-accent) 18%, transparent)}}.arcade-card:before{content:"";border-radius:inherit;pointer-events:none;background:linear-gradient(180deg, var(--arcade-accent), transparent 50%);position:absolute;inset:-1px}@supports (color:color-mix(in lab, red, red)){.arcade-card:before{background:linear-gradient(180deg, color-mix(in oklch, var(--arcade-accent) 35%, transparent), transparent 50%)}}.arcade-card:before{opacity:.25;mix-blend-mode:screen}.arcade-card[data-state=correct]{border-color:#61d46a;border-color:lab(76.6558% -50.5136 42.0179);box-shadow:inset 0 1px #61d46a4d,0 0 0 1px #61d46a80,0 0 32px -4px #61d46a8c;box-shadow:inset 0 1px lab(76.6558% -50.5136 42.0179/.3),0 0 0 1px lab(76.6558% -50.5136 42.0179/.5),0 0 32px -4px lab(76.6558% -50.5136 42.0179/.55)}.arcade-card[data-state=wrong]{border-color:#ff7965;border-color:lab(67.9785% 61.4384 44.7311);box-shadow:inset 0 1px #ff79654d,0 0 0 1px #ff796580,0 0 32px -4px #ff79658c;box-shadow:inset 0 1px lab(67.9785% 61.4384 44.7311/.3),0 0 0 1px lab(67.9785% 61.4384 44.7311/.5),0 0 32px -4px lab(67.9785% 61.4384 44.7311/.55)}.arcade-input-shell{background-color:var(--arcade-card);border:2px solid var(--arcade-border);border-radius:1rem;align-items:stretch;height:3.5rem;transition:border-color .15s,box-shadow .15s;display:flex;overflow:hidden}.arcade-input-shell:focus-within{border-color:var(--arcade-accent);box-shadow:0 0 0 3px var(--arcade-accent), 0 0 18px -2px var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-input-shell:focus-within{box-shadow:0 0 0 3px color-mix(in oklch, var(--arcade-accent) 25%, transparent), 0 0 18px -2px color-mix(in oklch, var(--arcade-accent) 50%, transparent)}}.arcade-input-shell[data-wrong=true]{border-color:#ff7965;border-color:lab(67.9785% 61.4384 44.7311);box-shadow:0 0 0 3px #ff796540,0 0 18px -2px #ff796573;box-shadow:0 0 0 3px lab(67.9785% 61.4384 44.7311/.25),0 0 18px -2px lab(67.9785% 61.4384 44.7311/.45)}.arcade-input-prefix{background-color:var(--arcade-accent);justify-content:center;align-items:center;min-width:3.25rem;padding-inline:.85rem;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.arcade-input-prefix{background-color:color-mix(in oklch, var(--arcade-accent) 16%, transparent)}}.arcade-input-prefix{color:var(--arcade-accent);letter-spacing:.04em;border-right:1px solid var(--arcade-border);text-shadow:0 0 10px var(--arcade-accent);font-size:1.1rem;font-weight:900}@supports (color:color-mix(in lab, red, red)){.arcade-input-prefix{text-shadow:0 0 10px color-mix(in oklch, var(--arcade-accent) 60%, transparent)}}.arcade-input-field{min-width:0;color:var(--arcade-text);caret-color:var(--arcade-accent);background:0 0;border:none;outline:none;flex:1;padding-inline:1rem;font-size:1.4rem;font-weight:800}.arcade-input-field::placeholder{color:var(--arcade-text-dim)}.arcade-input-chip{border:1.5px solid var(--arcade-border);background-color:var(--arcade-accent);border-radius:.6rem;justify-content:center;align-self:center;align-items:center;min-width:2.25rem;height:2.25rem;padding-inline:.55rem;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.arcade-input-chip{background-color:color-mix(in oklch, var(--arcade-accent) 8%, transparent)}}.arcade-input-chip{color:var(--arcade-text);cursor:pointer;font-size:1.05rem;font-weight:800;line-height:1;transition:transform 80ms,border-color .12s,background-color .12s}.arcade-input-chip:hover{border-color:var(--arcade-accent);background-color:var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-input-chip:hover{background-color:color-mix(in oklch, var(--arcade-accent) 18%, transparent)}}.arcade-input-chip:active{transform:translateY(1px)}.arcade-input-chip:disabled{opacity:.45;cursor:not-allowed}.arcade-numpad{width:100%;max-width:28rem;padding-bottom:env(safe-area-inset-bottom);-webkit-user-select:none;user-select:none;touch-action:manipulation;margin-inline:auto;grid-template-columns:repeat(4,1fr);gap:.5rem;margin-top:.25rem;display:grid}.arcade-key{border:2px solid var(--arcade-border);background-color:var(--arcade-card);min-height:3.25rem;color:var(--arcade-text);font-family:var(--font-lesson-ui), system-ui, sans-serif;cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:.85rem;justify-content:center;align-items:center;font-size:1.25rem;font-weight:800;line-height:1;transition:transform 70ms,border-color .12s,background-color .12s,box-shadow .12s;display:inline-flex}.arcade-key:hover:not(:disabled){border-color:var(--arcade-accent)}.arcade-key:active:not(:disabled){transform:translateY(1px)}.arcade-key:disabled{opacity:.45;cursor:not-allowed}.arcade-key--util{color:var(--arcade-accent);background-color:var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-key--util{background-color:color-mix(in oklch, var(--arcade-accent) 8%, var(--arcade-card))}}.arcade-key--primary{background-color:var(--arcade-accent);border-color:var(--arcade-accent);color:#121212;color:lab(5.26802% 0 0);box-shadow:0 0 18px -2px var(--arcade-accent);grid-column:span 2}@supports (color:color-mix(in lab, red, red)){.arcade-key--primary{box-shadow:0 0 18px -2px color-mix(in oklch, var(--arcade-accent) 60%, transparent)}}.arcade-key--primary{letter-spacing:.01em;font-size:1.05rem}.arcade-key--primary:hover:not(:disabled){background-color:var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-key--primary:hover:not(:disabled){background-color:color-mix(in oklch, var(--arcade-accent) 92%, white)}}.arcade-key--primary:disabled{background-color:var(--arcade-card);color:var(--arcade-text-dim);border-color:var(--arcade-border);box-shadow:none}.stage-toast{background-color:var(--arcade-bg);border-radius:.85rem;align-items:center;gap:.55rem;padding:.65rem .95rem;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.stage-toast{background-color:color-mix(in oklch, var(--arcade-bg) 90%, black)}}.stage-toast{border:2px solid var(--arcade-border);color:var(--arcade-text);letter-spacing:.01em;width:max-content;max-width:min(28rem,100vw - 2rem);font-size:.85rem;font-weight:800;line-height:1.2;animation:.28s cubic-bezier(.2,.8,.3,1.2) both stage-toast-in;box-shadow:0 12px 32px -14px #000,0 0 0 1px #ffffff0a;box-shadow:0 12px 32px -14px lab(0% 0 0),0 0 0 1px lab(100% 0 0/.04)}.stage-toast--accent{border-color:var(--arcade-accent);color:var(--arcade-accent);text-shadow:0 0 12px var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.stage-toast--accent{text-shadow:0 0 12px color-mix(in oklch, var(--arcade-accent) 50%, transparent)}}@keyframes stage-toast-in{0%{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.stage-toast{animation:none}}.arcade-btn{border:2px solid var(--arcade-border);background-color:var(--arcade-card);height:3.5rem;color:var(--arcade-text);letter-spacing:.08em;text-transform:uppercase;border-radius:1rem;justify-content:center;align-items:center;padding-inline:1.25rem;font-size:.9rem;font-weight:800;transition:transform .12s,box-shadow .15s,border-color .15s,background-color .15s,filter .15s;display:inline-flex}.arcade-btn:active:not(:disabled){transform:translateY(2px)}.arcade-btn--icon{width:3.5rem;padding-inline:0}.arcade-btn--ghost{color:var(--arcade-accent);border-color:var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-btn--ghost{border-color:color-mix(in oklch, var(--arcade-accent) 50%, transparent)}}.arcade-btn--ghost:hover:not(:disabled){background-color:var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-btn--ghost:hover:not(:disabled){background-color:color-mix(in oklch, var(--arcade-accent) 14%, transparent)}}.arcade-btn--ghost:hover:not(:disabled){box-shadow:0 0 14px -4px var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-btn--ghost:hover:not(:disabled){box-shadow:0 0 14px -4px color-mix(in oklch, var(--arcade-accent) 60%, transparent)}}.arcade-btn--primary{background:linear-gradient(180deg, var(--arcade-accent), var(--arcade-accent));flex:1}@supports (color:color-mix(in lab, red, red)){.arcade-btn--primary{background:linear-gradient(180deg, color-mix(in oklch, var(--arcade-accent) 92%, white), var(--arcade-accent))}}.arcade-btn--primary{color:var(--arcade-accent-fg);border-color:var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-btn--primary{border-color:color-mix(in oklch, var(--arcade-accent) 70%, black)}}.arcade-btn--primary{box-shadow:inset 0 -4px 0 var(--arcade-accent-strong), 0 0 22px -4px var(--arcade-accent), 0 0 44px -8px var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-btn--primary{box-shadow:inset 0 -4px 0 color-mix(in oklch, var(--arcade-accent-strong) 70%, transparent), 0 0 22px -4px color-mix(in oklch, var(--arcade-accent) 60%, transparent), 0 0 44px -8px color-mix(in oklch, var(--arcade-accent) 40%, transparent)}}.arcade-btn--primary:hover:not(:disabled){filter:brightness(1.05)}.arcade-btn--primary:disabled{opacity:.5;filter:grayscale(.4)saturate(.6);cursor:not-allowed;box-shadow:none}@media (prefers-reduced-motion:no-preference){@keyframes arcade-cta-pulse{0%,to{box-shadow:inset 0 -4px 0 color-mix(in oklch, var(--arcade-accent-strong) 70%, transparent), 0 0 22px -4px color-mix(in oklch, var(--arcade-accent) 60%, transparent), 0 0 44px -8px color-mix(in oklch, var(--arcade-accent) 40%, transparent)}50%{box-shadow:inset 0 -4px 0 color-mix(in oklch, var(--arcade-accent-strong) 70%, transparent), 0 0 30px -2px color-mix(in oklch, var(--arcade-accent) 80%, transparent), 0 0 60px -6px color-mix(in oklch, var(--arcade-accent) 55%, transparent)}}.arcade-btn--primary.arcade-btn--ready:not(:disabled){animation:2.4s ease-in-out infinite arcade-cta-pulse}}.arcade-tile{background-color:var(--arcade-card);min-height:3.5rem;color:var(--arcade-text);border:2px solid var(--arcade-border);border-radius:1rem;justify-content:center;align-items:center;padding:.75rem 1rem;font-size:1.05rem;font-weight:800;transition:border-color .15s,background-color .15s,transform .12s,box-shadow .15s;display:flex}.arcade-tile:hover:not(:disabled){border-color:var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-tile:hover:not(:disabled){border-color:color-mix(in oklch, var(--arcade-accent) 60%, transparent)}}.arcade-tile:hover:not(:disabled){box-shadow:0 0 18px -6px var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){.arcade-tile:hover:not(:disabled){box-shadow:0 0 18px -6px color-mix(in oklch, var(--arcade-accent) 50%, transparent)}}.arcade-tile:active:not(:disabled){transform:translateY(2px)}.arcade-tile[data-state=correct]{color:#d7f5d7;color:lab(93.6911% -13.9721 10.9206);background-color:#002203;background-color:lab(10.4376% -21.2817 14.9813);border-color:#61d46a;border-color:lab(76.6558% -50.5136 42.0179);box-shadow:0 0 22px -4px #61d46a8c;box-shadow:0 0 22px -4px lab(76.6558% -50.5136 42.0179/.55)}.arcade-tile[data-state=wrong]{color:#ffe3dd;color:lab(92.6176% 14.7538 9.83479);background-color:#370502;background-color:lab(8.74733% 24.8801 12.877);border-color:#ff7965;border-color:lab(67.9785% 61.4384 44.7311);box-shadow:0 0 22px -4px #ff79658c;box-shadow:0 0 22px -4px lab(67.9785% 61.4384 44.7311/.55)}main.stage-arcade .arcade-panel{background-color:var(--arcade-card);border:1px solid var(--arcade-border);color:var(--arcade-text);border-radius:1rem}main.stage-arcade .arcade-banner{background-color:var(--arcade-card-strong)}@supports (color:color-mix(in lab, red, red)){main.stage-arcade .arcade-banner{background-color:color-mix(in oklch, var(--arcade-card-strong) 90%, transparent)}}main.stage-arcade .arcade-banner{border:1px solid var(--arcade-border);color:var(--arcade-text)}main.stage-arcade .arcade-banner-accent{border-color:var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){main.stage-arcade .arcade-banner-accent{border-color:color-mix(in oklch, var(--arcade-accent) 55%, transparent)}}main.stage-arcade .arcade-banner-accent{color:var(--arcade-accent);box-shadow:0 0 16px -6px var(--arcade-accent)}@supports (color:color-mix(in lab, red, red)){main.stage-arcade .arcade-banner-accent{box-shadow:0 0 16px -6px color-mix(in oklch, var(--arcade-accent) 55%, transparent)}}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}@property --tw-content{syntax:"*";inherits:false;initial-value:""}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-scale-x{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-y{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-z{syntax:"*";inherits:false;initial-value:1}