@layer tokens{:root{color-scheme:light;--color-paper:#fdfaf4;--color-surface:#fffefd;--color-tint:#f4f0e6;--color-ink:#1d252d;--color-muted:#525c66;--color-link:#0069b6;--color-link-hover:#005290;--color-line:#d4d9df;--color-border:#89939e;--color-brand:#0065b0;--color-brand-hover:#00518f;--color-on-brand:#fcfcfc;--color-band:#004c86;--color-band-deep:#003763;--color-on-band:#f9fcff;--color-on-band-muted:#b5c5d6;--color-band-accent:#f8ca65;--color-focus:#ca6800;--photo-brightness:1;--lights:1}@media (prefers-color-scheme:dark){:root{color-scheme:dark;--color-paper:#19222f;--color-surface:#232c3a;--color-tint:#1f2836;--color-ink:#d9dfe5;--color-muted:#a0abb6;--color-link:#5c9fe1;--color-link-hover:#64b2ff;--color-line:#34393d;--color-border:#6b7580;--color-brand:#0065b0;--color-brand-hover:#00518f;--color-on-brand:#fcfcfc;--color-band:#002647;--color-band-deep:#001b36;--color-on-band:#f9fcff;--color-on-band-muted:#8595a5;--color-band-accent:#f8ca65;--color-focus:#d0901e;--photo-brightness:.87;--lights:.2}}:root{--color-verify-bg:#ffe27a;--color-verify-ink:#1d252d;--shadow-color:#0a142324;--shadow-sm:0 1px 2px var(--shadow-color);--shadow-md:0 .5rem 1.5rem var(--shadow-color);--shadow-lg:0 1.25rem 3.5rem var(--shadow-color)}html[data-lights=dark]{--shadow-color:#00000073}:root{--font-sans:"Source Sans 3", "Segoe UI", system-ui, sans-serif;--font-serif:"Source Serif 4", Georgia, "Times New Roman", serif;--font-mono:ui-monospace, "Cascadia Code", "Fira Code", monospace;--font-heading:var(--font-sans);--font-ui:var(--font-sans);--font-body:var(--font-serif);--font-quote:var(--font-serif);--text-min:1rem;--text-sm:1.0625rem;--text-body:clamp(1.1875rem, 1.12rem + .3vw, 1.3125rem);--text-lede:clamp(1.3125rem, 1.15rem + .7vw, 1.6875rem);--text-h4:clamp(1.25rem, 1.15rem + .45vw, 1.5rem);--text-h3:clamp(1.5rem, 1.3rem + .9vw, 2rem);--text-h2:clamp(2rem, 1.5rem + 2.2vw, 3.5rem);--text-h1:clamp(2.75rem, 1.6rem + 5vw, 6rem);--text-stat:clamp(2.5rem, 1.8rem + 3vw, 4.25rem);--leading-tight:1.05;--leading-heading:1.15;--leading-snug:1.35;--leading-body:1.62;--weight-regular:400;--weight-medium:500;--weight-semibold:600;--weight-bold:700;--weight-black:850;--tracking-eyebrow:.12em;--tracking-heading:-.02em;--tracking-display:-.035em;--measure:75ch;--space-2xs:.25rem;--space-xs:.5rem;--space-sm:.75rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4.5rem;--section-y:clamp(3.5rem, 2.25rem + 6vw, 7.5rem);--gap:clamp(1.25rem, .9rem + 1.5vw, 2.5rem);--radius-sm:.375rem;--radius-md:.75rem;--radius-lg:1.25rem;--radius-pill:999px;--ease:cubic-bezier(.2, .7, .2, 1);--fast:.15s;--base:.25s;--touch-min:2.75rem;--gutter:clamp(1.25rem, .75rem + 2.5vw, 3rem);--container-max:84rem;--container:min(var(--container-max), 100% - (var(--gutter) * 2));--container-narrow:min(52rem, 100% - (var(--gutter) * 2));--header-h:4.25rem}}@layer base{@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:200 900;font-display:swap;src:url(../fonts/source-sans-3-latin-wght-normal.woff2)format("woff2")}@font-face{font-family:"Source Sans 3";font-style:italic;font-weight:200 900;font-display:swap;src:url(../fonts/source-sans-3-latin-wght-italic.woff2)format("woff2")}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(../fonts/source-serif-4-latin-wght-normal.woff2)format("woff2")}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(../fonts/source-serif-4-latin-wght-italic.woff2)format("woff2")}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 1rem)}@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}body{background-color:var(--color-paper);min-width:20rem;min-height:100dvh;color:var(--color-ink);font-family:var(--font-body);font-size:var(--text-body);line-height:var(--leading-body);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;transition:background-color var(--base) var(--ease), color var(--base) var(--ease);margin:0}img,picture,video,svg{max-width:100%;height:auto;display:block}img{filter:brightness(var(--photo-brightness,1))}iframe{border:0;max-width:100%}button,input,select,textarea{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px;border-radius:var(--radius-sm)}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}h1,h2,h3,h4{margin-block:0 var(--space-md);font-family:var(--font-heading);letter-spacing:var(--tracking-heading);line-height:var(--leading-heading);text-wrap:pretty;color:inherit}h1{font-size:var(--text-h1);font-weight:var(--weight-black);letter-spacing:var(--tracking-display);line-height:var(--leading-tight)}h2{font-size:var(--text-h2);font-weight:var(--weight-bold)}h3{font-size:var(--text-h3);font-weight:var(--weight-bold);line-height:var(--leading-snug)}h4{font-size:var(--text-h4);font-weight:var(--weight-semibold);line-height:var(--leading-snug)}p,ul,ol,dl{margin-block:0 var(--space-md)}:is(p,ul,ol,dl):last-child{margin-block-end:0}ul,ol{padding-inline-start:1.25em}li+li{margin-block-start:var(--space-xs)}strong,b{font-weight:var(--weight-bold)}a{color:var(--color-link);text-underline-offset:.18em;transition:color var(--fast) var(--ease);text-decoration-thickness:.08em}a:hover{color:var(--color-link-hover)}code{font-family:var(--font-mono);font-size:.9em}.prose>*{max-width:var(--measure)}.lede{font-size:var(--text-lede);color:var(--color-ink);text-wrap:pretty;line-height:1.5}.eyebrow{margin-block:0 var(--space-sm);color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;line-height:1.3;display:inline-block}.meta{color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--weight-semibold);line-height:1.45}h2.display{font-size:clamp(2.75rem,1.6rem + 4.5vw,5.25rem);font-weight:var(--weight-black);letter-spacing:var(--tracking-display);line-height:var(--leading-tight)}}@layer layout{.container{width:var(--container);margin-inline:auto}.container--narrow{width:var(--container-narrow);margin-inline:auto}.skip-link{z-index:200;padding:var(--space-xs) var(--space-md);border-radius:var(--radius-sm);background:var(--color-brand);color:var(--color-on-brand);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);text-decoration:none;position:absolute;inset-block-start:var(--space-xs);inset-inline-start:var(--space-xs);transform:translateY(-200%)}.skip-link:focus{transform:translateY(0)}.section{padding-block:var(--section-y)}.section--tight{padding-block:calc(var(--section-y) * .6)}.section--tint{background:var(--color-tint)}.section--surface{background:var(--color-surface);border-block:1px solid var(--color-line)}.section--brand{background:radial-gradient(60rem 30rem at 85% -10%, color-mix(in srgb, var(--color-on-band) 10%, transparent), transparent 70%), linear-gradient(160deg, var(--color-band), var(--color-band-deep));color:var(--color-on-band);& .eyebrow{color:var(--color-band-accent)}& .lede,& p{color:var(--color-on-band)}& .meta{color:var(--color-band-accent)}& a:not(.button){color:var(--color-on-band)}}.section-head{gap:var(--space-md);margin-block-end:clamp(2rem,1.5rem + 2vw,3.5rem);display:grid;& h2{margin:0}& .lede{max-width:60rem;margin:0}}@media (width>=64rem){.section-head--row{align-items:end;column-gap:var(--space-2xl);grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.section-head--row .eyebrow{grid-column:1/-1;margin:0}}.section-foot{gap:var(--space-md);flex-wrap:wrap;align-items:center;margin-block-start:clamp(2rem,1.5rem + 2vw,3rem);display:flex}.split{gap:var(--gap);align-items:center;display:grid}@media (width>=56rem){.split{grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:clamp(2rem,1rem + 3vw,4rem)}.split--wide-text{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}.split--reverse>:first-child{order:2}.split--top{align-items:start}}.grid{gap:var(--gap);grid-template-columns:repeat(auto-fit, minmax(min(100%, var(--grid-min,17rem)), 1fr));display:grid}.grid--sm{--grid-min:13rem}.society-grid{gap:clamp(1rem,.75rem + 1vw,1.75rem)}.grid--lg{--grid-min:22rem}@media (width>=40rem){.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=64rem){.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width>=40rem) and (width<=63.99rem){.grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}}.stack>*+*{margin-block-start:var(--space-md)}.stack-lg>*+*{margin-block-start:var(--space-xl)}.site-header{z-index:100;background:color-mix(in srgb, var(--color-paper) 92%, transparent);border-block-end:1px solid var(--color-line);-webkit-backdrop-filter:saturate(1.4)blur(10px);position:sticky;inset-block-start:0}html.menu-open{scrollbar-gutter:stable;overflow:hidden}.site-header__inner{align-items:center;gap:var(--space-sm);min-height:var(--header-h);display:flex;position:relative}.brand{color:var(--color-ink);font-family:var(--font-ui);flex-direction:column;margin-inline-end:auto;line-height:1.15;text-decoration:none;display:flex;&:hover{color:var(--color-ink)}}.brand__name{font-size:1.25rem;font-weight:var(--weight-black);letter-spacing:-.01em;color:var(--color-link)}.brand__dept{font-size:var(--text-min);font-weight:var(--weight-semibold);color:var(--color-ink)}@media (width<=26rem){.brand__dept{font-size:.9375rem}}.site-nav{align-items:center;display:flex}.site-nav__toggle{align-items:center;gap:var(--space-xs);min-height:var(--touch-min);padding:0 var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);cursor:pointer;display:inline-flex;& svg{flex:none;width:1.1rem;height:1.1rem}& .site-nav__icon--close{display:none}}.site-nav__panel{width:100vw;padding:var(--space-md) var(--gutter) var(--space-xl);background:var(--color-paper);border-block-end:1px solid var(--color-line);box-shadow:var(--shadow-lg);display:none;position:absolute;inset-block-start:100%;inset-inline:50% auto;transform:translate(-50%)}.site-nav__toggle[aria-expanded=true]+.site-nav__panel{display:block}.site-nav__toggle[aria-expanded=true]{& .site-nav__icon--menu{display:none}& .site-nav__icon--close{display:block}}.site-nav__panel{max-height:calc(100vh - var(--header-h));max-height:calc(100dvh - var(--header-h));overscroll-behavior:contain;-webkit-overflow-scrolling:touch;overflow-y:auto}.site-nav__label{display:none}.site-nav__list{margin:0 0 var(--space-lg);padding:0;list-style:none;& li+li{margin:0}}.site-nav__link{padding:var(--space-sm) 0;border-block-end:1px solid var(--color-line);color:var(--color-ink);font-family:var(--font-ui);font-size:1.375rem;font-weight:var(--weight-semibold);text-decoration:none;display:block;&[aria-current=page]{color:var(--color-link)}}@media (width>=64rem){.site-nav{flex:1;order:1;justify-content:flex-end}.lights{order:2}.site-nav__toggle{display:none}.site-nav__panel{align-items:center;gap:var(--space-lg);width:auto;max-height:none;box-shadow:none;background:0 0;border:0;padding:0;display:flex;position:static;inset:auto;overflow:visible;transform:none}.site-nav__list{gap:clamp(.75rem,.2rem + 1vw,1.5rem);margin:0;display:flex}.site-nav__link{padding:var(--space-xs) 0;font-size:var(--text-sm);border:0;position:relative;&:after{content:"";background:var(--color-link);transform-origin:0;height:2px;transition:transform var(--base) var(--ease);position:absolute;inset-block-end:.1rem;inset-inline:0;transform:scaleX(0)}&:hover:after,&[aria-current=page]:after{transform:scaleX(1)}}.brand{margin-inline-end:var(--space-lg)}.site-header__inner{gap:var(--space-lg)}}.lights{position:relative}.lights__toggle{align-items:center;gap:var(--space-xs);min-height:var(--touch-min);padding:0 var(--space-sm);border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);cursor:pointer;display:inline-flex}.lights__bulb{flex:none;width:1.5rem;height:1.5rem;overflow:visible;& .lights__glow{fill:var(--color-band-accent);opacity:calc(.15 + var(--lights,1) * .85)}& .lights__rays{stroke:var(--color-band-accent);opacity:calc(var(--lights,1) * var(--lights,1))}& .lights__glass{fill:none;stroke:currentColor}}.lights__label{display:none}@media (width>=40rem){.lights__label,.site-nav__label{display:inline}}.lights__panel{width:min(20rem,100vw - 2rem);padding:var(--space-lg);border:1px solid var(--color-line);border-radius:var(--radius-md);background:var(--color-surface);box-shadow:var(--shadow-lg);font-family:var(--font-ui);position:absolute;inset-block-start:calc(100% + .5rem);inset-inline-end:0;&[hidden]{display:none}}.lights__head{font-size:var(--text-sm);font-weight:var(--weight-bold);justify-content:space-between;align-items:baseline;margin-block-end:var(--space-sm);display:flex}.lights__value{font-variant-numeric:tabular-nums;color:var(--color-link)}.lights__row{align-items:center;gap:var(--space-sm);display:flex;& svg{width:1.25rem;height:1.25rem;color:var(--color-muted);flex:none}}.lights__range{min-height:var(--touch-min);accent-color:var(--color-brand);cursor:pointer;flex:1;margin:0}.lights__learn{color:var(--color-link);font-size:var(--text-min);font-weight:var(--weight-semibold);text-underline-offset:.18em;cursor:pointer;background:0 0;border:0;margin-block-start:var(--space-sm);padding:0;text-decoration:underline}.site-footer{padding-block:var(--space-3xl) var(--space-xl);background:var(--color-band-deep);color:var(--color-on-band);font-family:var(--font-ui);& a{color:var(--color-on-band);text-decoration:none;&:hover{text-decoration:underline}}}.site-footer__top{gap:var(--space-2xl);display:grid}@media (width>=64rem){.site-footer__top{grid-template-columns:1.3fr 2fr}}.site-footer__brand p{max-width:30rem;color:var(--color-on-band-muted);font-family:var(--font-body)}.site-footer__brand .site-footer__name{color:var(--color-on-band);font-family:var(--font-ui);font-size:1.5rem;font-weight:var(--weight-black);margin-block-end:var(--space-sm)}.site-footer__cols{gap:var(--space-xl);grid-template-columns:repeat(auto-fit,minmax(min(100%,11rem),1fr));display:grid;& h2{color:var(--color-band-accent);font-size:var(--text-min);font-weight:var(--weight-bold);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;margin-block-end:var(--space-sm)}& ul{margin:0;padding:0;list-style:none}& li+li{margin-block-start:var(--space-xs)}}.footer-icon-link{white-space:nowrap}.icon-github{vertical-align:-.15em;color:#fff;width:1.05em;height:1.05em;margin-inline-end:.4em;display:inline-block}.icon-youtube{vertical-align:-.15em;background:#fff;border-radius:.28em;width:1.45em;height:1em;margin-inline-end:.4em;display:inline-block;position:relative;&:after{content:"";border-block:.24em solid #0000;border-inline-start:.38em solid var(--color-band-deep);position:absolute;inset-block-start:50%;inset-inline-start:52%;transform:translate(-50%,-50%)}}.site-footer__bottom{gap:var(--space-md) var(--space-xl);border-block-start:1px solid color-mix(in srgb, var(--color-on-band) 20%, transparent);color:var(--color-on-band-muted);font-size:var(--text-min);flex-wrap:wrap;justify-content:space-between;margin-block-start:var(--space-2xl);padding-block-start:var(--space-lg);display:flex}}@layer components{.button{border:2px solid var(--color-brand);border-radius:var(--radius-pill);background:var(--color-brand);min-height:3.25rem;color:var(--color-on-brand);font-family:var(--font-ui);font-size:1.125rem;font-weight:var(--weight-bold);text-align:center;cursor:pointer;transition:background-color var(--fast) var(--ease), border-color var(--fast) var(--ease), color var(--fast) var(--ease), transform var(--fast) var(--ease);justify-content:center;align-items:center;gap:.5em;padding:.7rem 1.5rem;line-height:1.2;text-decoration:none;display:inline-flex;&:hover{background:var(--color-brand-hover);border-color:var(--color-brand-hover);color:var(--color-on-brand);transform:translateY(-1px)}& .arrow{transition:transform var(--fast) var(--ease)}&:hover .arrow{transform:translate(3px)}}.button--secondary{border-color:var(--color-link);color:var(--color-link);background:0 0;&:hover{background:var(--color-link);border-color:var(--color-link);color:var(--color-paper)}}.button--small{min-height:var(--touch-min);font-size:var(--text-min);padding:.45rem 1.1rem}.section--brand,.hero{& .button{background:var(--color-on-band);border-color:var(--color-on-band);color:var(--color-band-deep);&:hover{color:var(--color-on-band);background:0 0}}& .button--secondary{border-color:color-mix(in srgb, var(--color-on-band) 70%, transparent);color:var(--color-on-band);background:0 0;&:hover{background:var(--color-on-band);border-color:var(--color-on-band);color:var(--color-band-deep)}}}.button-row{gap:var(--space-sm) var(--space-md);flex-wrap:wrap;display:flex}@media (width<=30rem){.button-row .button{flex:100%}}.text-link{font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--weight-bold);align-items:center;gap:.4em;text-decoration:none;display:inline-flex;&:hover{text-decoration:underline}}.hero{background:radial-gradient(50rem 28rem at 90% 0%, color-mix(in srgb, var(--color-band-accent) 16%, transparent), transparent 70%), linear-gradient(155deg, var(--color-band) 0%, var(--color-band-deep) 100%);color:var(--color-on-band);padding-block:clamp(3rem,2rem + 6vw,7.5rem) clamp(3.5rem,2rem + 6vw,8rem);position:relative;overflow:hidden;&:before{content:"";pointer-events:none;opacity:.12;background-image:linear-gradient(90deg, var(--color-on-band) 1px, transparent 1px), linear-gradient(var(--color-on-band) 1px, transparent 1px);background-size:4.5rem 4.5rem;position:absolute;inset:0;-webkit-mask-image:radial-gradient(at 80% 20%,#000,#0000 65%);mask-image:radial-gradient(at 80% 20%,#000,#0000 65%)}&>.container{position:relative}& h1{max-width:20ch;margin-block-end:var(--space-lg);& em{color:var(--color-band-accent);font-style:normal}}& .eyebrow{color:var(--color-band-accent)}& .lede{max-width:48rem;color:var(--color-on-band);margin-block-end:var(--space-xl)}}.hero--page{padding-block:clamp(2.5rem,1.75rem + 4vw,5.5rem);& h1{max-width:24ch;font-size:clamp(2.5rem,1.6rem + 4vw,4.75rem)}}.hero__media{position:relative}.hero__facts{gap:var(--space-xs) var(--space-lg);margin:var(--space-xl) 0 0;color:var(--color-on-band-muted);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-semibold);flex-wrap:wrap;padding:0;list-style:none;display:flex;& li{margin:0}& li:before{content:"";background:var(--color-band-accent);vertical-align:.1em;border-radius:50%;width:.5rem;height:.5rem;margin-inline-end:.5rem;display:inline-block}}.card{gap:var(--space-sm);border:1px solid var(--color-line);border-radius:var(--radius-md);background:var(--color-surface);box-shadow:var(--shadow-sm);flex-direction:column;padding:clamp(1.25rem,1rem + 1vw,2rem);display:flex;& h3,& h4,& p{margin:0}& .text-link{margin-block-start:auto;padding-block-start:var(--space-sm)}}a.card{color:inherit;transition:transform var(--base) var(--ease), box-shadow var(--base) var(--ease), border-color var(--base) var(--ease);text-decoration:none;&:hover{border-color:var(--color-border);box-shadow:var(--shadow-md);transform:translateY(-3px)}}.card__icon{border-radius:var(--radius-sm);background:color-mix(in srgb, var(--color-link) 12%, transparent);width:3rem;height:3rem;color:var(--color-link);place-items:center;display:grid;& svg{width:1.6rem;height:1.6rem}}.pillars{gap:var(--gap);counter-reset:pillar;grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));margin:0;padding:0;list-style:none;display:grid;& li{border-block-start:3px solid var(--color-link);counter-increment:pillar;margin:0;padding-block-start:var(--space-lg)}& li:before{content:"0" counter(pillar);color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-h3);font-weight:var(--weight-black);margin-block-end:var(--space-xs);line-height:1;display:block}& h3{font-size:var(--text-h4);margin-block-end:var(--space-xs)}& p{margin:0}}@media (width>=40rem){.pillars--4{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=64rem){.pillars--4{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (width>=56rem){.pillars--3{grid-template-columns:repeat(3,minmax(0,1fr))}}.major-card{gap:var(--space-md);border-radius:var(--radius-lg);background:var(--color-surface);border:1px solid var(--color-line);box-shadow:var(--shadow-md);flex-direction:column;padding:clamp(1.5rem,1rem + 2vw,2.75rem);display:flex;position:relative;overflow:hidden;&:before{content:"";background:linear-gradient(90deg, var(--color-brand), var(--color-band-accent));height:6px;position:absolute;inset-block-start:0;inset-inline:0}& h3{font-size:var(--text-h2);margin:0}& .major-card__question{font-size:var(--text-lede);margin:0;line-height:1.4}& h4{margin:var(--space-sm) 0 0;font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;color:var(--color-link)}& ul{margin:0}& .button-row{margin-block-start:auto;padding-block-start:var(--space-md)}}.careers{border-block-start:1px solid var(--color-line);gap:0;margin:0;display:grid}.careers__row{gap:var(--space-2xs) var(--gap);padding-block:var(--space-md);border-block-end:1px solid var(--color-line);display:grid;& dt{font-size:var(--text-body)}& dd{color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--weight-bold);margin:0}}@media (width>=48rem){.careers__row{grid-template-columns:2fr 1fr;align-items:baseline;& dd{text-align:end}}}.society{padding:var(--space-lg);border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-line);& h3{margin:0 0 var(--space-2xs);font-size:var(--text-h4)}& p{color:var(--color-ink);font-size:var(--text-sm);margin:0}}.project-card{border:1px solid var(--color-line);border-radius:var(--radius-md);background:var(--color-surface);box-shadow:var(--shadow-sm);flex-direction:column;display:flex;overflow:hidden;& .slot{border:0;border-block-end:1px solid var(--color-line);border-radius:0}}.project-card__body{gap:var(--space-sm);padding:var(--space-lg);flex-direction:column;flex:1;display:flex;& h3{font-size:var(--text-h4);margin:0}& p{margin:0}}.tag-list{gap:var(--space-xs);flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex;& li{border-radius:var(--radius-pill);background:color-mix(in srgb, var(--color-link) 12%, transparent);color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-semibold);margin:0;padding:.15rem .7rem}}.quote{gap:var(--space-lg);margin:0;display:grid;& blockquote{font-family:var(--font-quote);font-size:clamp(1.5rem,1.1rem + 1.8vw,2.6rem);font-style:italic;font-weight:var(--weight-regular);text-wrap:pretty;margin:0;line-height:1.3;position:relative;& p{margin:0}}& blockquote:before{content:"“";height:.55em;color:var(--color-link);font-family:var(--font-quote);font-size:2.5em;font-style:normal;line-height:1;display:block}& figcaption{font-family:var(--font-ui);font-size:var(--text-sm);line-height:1.5}& .quote__name{font-size:1.1875rem;font-weight:var(--weight-bold);display:block}& .quote__dot{color:var(--color-link);margin-inline:.35em}& .quote__calling{font-weight:var(--weight-semibold)}& .quote__source{color:var(--color-ink);margin-block-start:var(--space-2xs);display:block}}.section--brand .quote blockquote:before,.section--brand .quote .quote__dot{color:var(--color-band-accent)}.section--brand .quote .quote__source{color:var(--color-on-band)}.quote--compact{padding:var(--space-xl);border-inline-start:4px solid var(--color-link);border-radius:0 var(--radius-md) var(--radius-md) 0;background:var(--color-surface);& blockquote{font-size:clamp(1.25rem,1.1rem + .6vw,1.6rem)}& blockquote:before{color:var(--color-link);font-size:2em}}.stats{gap:var(--gap);grid-template-columns:repeat(auto-fit,minmax(min(100%,12rem),1fr));margin:0;display:grid}.stat{gap:var(--space-2xs);border-block-start:3px solid var(--color-link);flex-direction:column-reverse;padding-block-start:var(--space-md);display:flex;& dt{font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-ink)}& dd{font-family:var(--font-ui);font-size:var(--text-stat);font-weight:var(--weight-black);letter-spacing:-.03em;font-variant-numeric:tabular-nums;margin:0;line-height:1}}.section--brand .stat{border-color:var(--color-band-accent);& dt{color:var(--color-on-band)}}.source-note{color:var(--color-ink);font-family:var(--font-ui);font-size:var(--text-min);max-width:75rem;margin-block-start:var(--space-lg);line-height:1.5}.section--brand .source-note{color:var(--color-on-band)}.path-switcher{align-items:center;gap:var(--space-xs);padding:var(--space-xs);border:1px solid var(--color-line);border-radius:var(--radius-md);background:var(--color-surface);flex-wrap:wrap;margin-block-end:var(--space-lg);display:flex;& .path-switcher__label{margin-inline:var(--space-sm);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold)}& .path-switcher__button{padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm);color:var(--color-ink);font-family:var(--font-ui);font-weight:var(--weight-bold);cursor:pointer;background:0 0;border:1px solid #0000;&[aria-pressed=true]{border-color:var(--color-link);background:var(--color-link);color:var(--color-on-brand)}&:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}}}.path{gap:var(--space-md);grid-template-columns:repeat(auto-fit,minmax(min(100%,16rem),1fr));margin:0;padding:0;list-style:none;display:grid}.path__stage{padding:var(--space-lg);border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-line);margin:0;position:relative;& h3{margin:0 0 var(--space-sm);font-size:var(--text-h4)}& .path__when{color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;margin-block-end:var(--space-2xs);display:block}& ul{margin:0;padding:0;list-style:none}& li{font-size:var(--text-sm);line-height:1.45}& li+li{margin-block-start:var(--space-sm)}& .code{color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);display:block}& .path__options{border-block-start:1px solid var(--color-line);margin-block-start:var(--space-md);padding-block-start:var(--space-sm)}& .path__options-title{margin:0 0 var(--space-xs);color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);text-transform:uppercase;letter-spacing:var(--tracking-eyebrow)}}.faq{border-block-start:1px solid var(--color-line)}.faq__item{border-block-end:1px solid var(--color-line);& summary{justify-content:space-between;align-items:center;gap:var(--space-md);padding:var(--space-lg) 0;font-family:var(--font-heading);font-size:var(--text-h4);font-weight:var(--weight-bold);cursor:pointer;line-height:1.3;list-style:none;display:flex;&::-webkit-details-marker{display:none}&:after{content:"+";border:2px solid var(--color-link);width:2.25rem;height:2.25rem;color:var(--color-link);transition:transform var(--base) var(--ease);border-radius:50%;flex:none;place-items:center;font-size:1.4rem;line-height:1;display:grid}}&[open] summary:after{transform:rotate(45deg)}& .faq__answer{max-width:var(--measure);padding-block-end:var(--space-lg)}}.callout{padding:var(--space-lg) var(--space-xl);border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-line);border-inline-start:5px solid var(--color-link);&>*+*{margin-block-start:var(--space-sm)}& h3{font-size:var(--text-h4);margin:0}}.callout--accent{border-inline-start-color:var(--color-band-accent);background:color-mix(in srgb, var(--color-band-accent) 14%, var(--color-surface))}.checklist{margin:0;padding:0;list-style:none;& li{padding-inline-start:2rem;position:relative}& li:before{content:"";background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 80% no-repeat, var(--color-brand);border-radius:50%;width:1.15rem;height:1.15rem;position:absolute;inset-block-start:.45em;inset-inline-start:0}}.steps{gap:var(--gap);counter-reset:step;grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));margin:0;padding:0;list-style:none;display:grid;& li{counter-increment:step;margin:0}& li:before{content:counter(step);width:2.5rem;height:2.5rem;background:var(--color-brand);color:var(--color-on-brand);font-family:var(--font-ui);font-weight:var(--weight-black);border-radius:50%;place-items:center;margin-block-end:var(--space-sm);display:grid}& h3{font-size:var(--text-h4);margin-block-end:var(--space-2xs)}}.quote--wide{gap:var(--space-lg);& blockquote{padding-inline-start:.85em;font-size:clamp(1.75rem,1.2rem + 2.4vw,3.25rem);line-height:1.2;&:before{height:auto;position:absolute;inset-block-start:-.08em;inset-inline-start:-.05em}}}@media (width>=64rem){.quote--wide{align-items:center;column-gap:var(--space-xl);grid-template-columns:minmax(0,1.8fr) minmax(14rem,1fr);& blockquote{margin-inline-start:-.25rem;padding-inline-start:1em;&:before{inset-inline-start:-.22em}}& figcaption{border-inline-start:3px solid var(--color-link);padding-inline-start:var(--space-md)}}}.eyebrow--feature{font-size:var(--text-h4)}.feature-text{display:grid}.feature-text__item{opacity:0;visibility:hidden;transition:opacity .6s var(--ease), visibility .6s;grid-area:1/1;&.is-active{opacity:1;visibility:visible}& h3{margin-block-end:var(--space-sm)}}.slot{aspect-ratio:var(--slot-ratio,4 / 3);border-radius:var(--radius-lg);border:1px solid var(--color-line);background:radial-gradient(circle at 25% 20%, color-mix(in srgb, var(--color-band-accent) 22%, transparent), transparent 55%), linear-gradient(145deg, color-mix(in srgb, var(--color-brand) 22%, var(--color-tint)), var(--color-tint));text-align:center;place-items:center;display:grid;position:relative;overflow:hidden}.slot--wide{--slot-ratio:16 / 9}.slot--tall{--slot-ratio:4 / 3}@media (width>=56rem){.slot--tall{--slot-ratio:4 / 5}}.hero .slot{border-color:color-mix(in srgb, var(--color-on-band) 25%, transparent);background:radial-gradient(circle at 70% 25%, color-mix(in srgb, var(--color-band-accent) 30%, transparent), transparent 55%), linear-gradient(145deg, color-mix(in srgb, var(--color-on-band) 18%, transparent), color-mix(in srgb, var(--color-on-band) 6%, transparent));box-shadow:0 2rem 4rem #00000040}.slot__media{object-fit:cover;opacity:0;width:100%;height:100%;transition:opacity .8s var(--ease);border:0;position:absolute;inset:0;&.is-active{opacity:1}}.slot[data-media-cycle=video]{--slot-ratio:16 / 9;background:#000;& .slot__media{transition-duration:.4s}& .slot__media.is-active{transition-delay:.4s}}iframe.slot__media{inset:auto 0;pointer-events:none;height:calc(100% + 10rem);top:-5rem}.slot__channel-link{z-index:1;padding:var(--space-sm);justify-content:flex-end;align-items:flex-end;display:flex;position:absolute;inset:0;&:focus-visible{outline:3px solid var(--color-focus);outline-offset:-3px}& svg{filter:drop-shadow(0 1px 3px #00000080);width:2.75rem;height:auto;transition:transform var(--fast) var(--ease)}&:hover svg{transform:scale(1.08)}}.slot__sound{z-index:2;width:var(--touch-min);height:var(--touch-min);border-radius:var(--radius-pill);color:#fff;cursor:pointer;background:#0009;border:0;place-items:center;padding:0;display:grid;position:absolute;inset-block-end:var(--space-sm);inset-inline-start:var(--space-sm);& svg{width:1.4rem;height:1.4rem}& .slot__sound-on{display:none}&[aria-pressed=true]{& .slot__sound-on{display:inline}& .slot__sound-off{display:none}}&:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}}.activity{gap:var(--gap);border-radius:var(--radius-lg);border:2px dashed var(--color-border);background:var(--color-surface);padding:clamp(1.25rem,1rem + 1.5vw,2.5rem);display:grid}@media (width>=56rem){.activity{grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);align-items:center}}.activity__intro{& h3{margin-block:var(--space-xs) var(--space-sm)}& p{margin-block-end:var(--space-sm)}}.activity__badge{border-radius:var(--radius-pill);background:var(--color-verify-bg);color:var(--color-verify-ink);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);align-items:center;gap:.4rem;padding:.2rem .75rem;display:inline-flex}.activity__stage{--slot-ratio:16 / 10;background:linear-gradient(90deg, var(--color-line) 1px, transparent 1px) 0 0 / 12.5% 20%, linear-gradient(var(--color-line) 1px, transparent 1px) 0 0 / 12.5% 20%, var(--color-tint)}.activity__stage--dots{background:radial-gradient(circle, var(--color-border) 1.5px, transparent 2px) 0 0 / 1.5rem 1.5rem, var(--color-tint)}.challenge-card{border:1px solid var(--color-line);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-sm);flex-direction:column;display:flex;overflow:hidden}.challenge-card__art{cursor:pointer;aspect-ratio:2;width:100%;height:auto;display:block}.challenge-card__body{align-items:flex-start;gap:var(--space-sm);flex-direction:column;flex:1;padding:clamp(1.25rem,1rem + 1vw,2rem);display:flex;& h3,& p{margin:0}& .button,& .activity__badge{margin-block-start:auto}}.learn--game{& .learn__inner{width:min(76rem, 100% - (var(--gutter) * 2))}& .activity{border:0}}.activity__art{border-radius:var(--radius-lg)}.learn{box-sizing:border-box;background:var(--color-surface);width:100%;max-width:none;height:100%;max-height:none;color:var(--color-ink);overscroll-behavior:contain;-webkit-overflow-scrolling:touch;border:0;margin:0;padding:0;overflow-y:auto;&::backdrop{backdrop-filter:blur(3px);background:#050f1e8c}&[open]{animation:learn-in var(--base) var(--ease)}}html:has(dialog.learn[open]){scrollbar-gutter:stable;overflow:hidden}@keyframes learn-in{0%{opacity:0;transform:translateY(1.5rem)}}.learn__inner{box-sizing:border-box;align-content:center;gap:var(--space-lg);width:min(44rem, 100% - (var(--gutter) * 2));min-height:100%;padding-block:calc(var(--touch-min) + var(--space-xl)) var(--space-2xl);margin-inline:auto;display:grid}.learn__head{text-align:center;& h2{font-size:var(--text-h2);margin:0}& .eyebrow{margin-block-end:var(--space-xs)}}.learn__close{--learn-close-top:max(var(--space-md), env(safe-area-inset-top));margin-block:var(--learn-close-top) calc(-1 * (var(--touch-min) + var(--learn-close-top)));margin-inline:auto max(var(--space-lg), env(safe-area-inset-right));z-index:1;width:var(--touch-min);height:var(--touch-min);border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-ink);cursor:pointer;border-radius:50%;place-items:center;font-size:1.5rem;line-height:1;display:grid;position:sticky;inset-block-start:var(--learn-close-top)}.learn__section{border-block-start:1px solid var(--color-line);padding-block-start:var(--space-lg);&>:last-child{margin-block-end:0}}.learn__section h3{color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-bold);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;margin-block-end:var(--space-xs)}.learn__section--human{font-family:var(--font-quote);font-size:var(--text-lede);text-align:center;font-style:italic;line-height:1.4}@media (width>=48rem){.learn__inner:has(>.learn__section){column-gap:var(--space-xl);width:min(64rem, 100% - (var(--gutter) * 2));grid-template-columns:repeat(2,minmax(0,1fr))}.learn__head,.learn__section--human{grid-column:1/-1}.learn__head{margin-block-end:var(--space-sm)}}@media (width>=64rem){.learn__inner:has(>.learn__section):has(>:last-child:nth-child(5)){width:min(76rem, 100% - (var(--gutter) * 2));grid-template-columns:repeat(3,minmax(0,1fr))}}.activity--game{gap:var(--space-lg);grid-template-columns:1fr;padding:clamp(1rem,.75rem + 1vw,1.75rem);& .activity__badge{justify-self:start;width:fit-content}& .activity__intro>p:not(.meta){font-size:var(--text-sm)}& .activity__intro h3{margin-block:var(--space-xs)}border-style:solid;border-color:var(--color-line);box-shadow:var(--shadow-md)}.activity__badge--live{background:var(--color-brand);color:var(--color-on-brand)}.robot{font-family:var(--font-ui)}.robot__noscript{color:var(--color-ink);margin:0}.robot__layout{gap:var(--gap);align-items:start;display:grid}@media (width>=60rem){.robot__layout{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}}.robot__levels{gap:var(--space-xs);flex-wrap:wrap;margin-block-end:var(--space-lg);display:flex}.robot__level{align-items:center;gap:var(--space-xs);min-height:var(--touch-min);border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface);color:var(--color-ink);font-size:var(--text-min);font-weight:var(--weight-semibold);cursor:pointer;padding:.35rem .9rem .35rem .4rem;display:inline-flex;&[aria-pressed=true]{border-color:var(--color-brand);background:var(--color-brand);color:var(--color-on-brand);& .robot__level-num{background:var(--color-on-brand);color:var(--color-brand)}& .robot__stars span{color:var(--color-on-brand);opacity:.45}& .robot__stars .is-on{color:var(--color-band-accent);opacity:1}}}.robot__level-num{background:var(--color-brand);width:1.9rem;height:1.9rem;color:var(--color-on-brand);font-weight:var(--weight-black);border-radius:50%;place-items:center;display:grid}.robot__stars{gap:.05em;font-size:1.1em;line-height:1;display:inline-flex;& span{color:var(--color-border)}& .is-on{color:#e0a400}}.robot__board{padding:var(--space-xs);border-radius:var(--radius-md);background:var(--color-tint);border:1px solid var(--color-line)}.robot__svg{filter:none;width:100%;height:auto;max-height:min(26rem,55vh)}.robot__cell{fill:var(--color-surface)}.robot__wall{fill:var(--color-ink);opacity:.82}.robot__searched{fill:var(--color-link);opacity:.22}.robot__trail{fill:var(--color-link);opacity:.55}.robot__goal-ring{fill:none;stroke:#e0a400;stroke-width:1.1px}.robot__goal-dot{fill:#e0a400}.robot__body{fill:var(--color-brand);stroke:var(--color-on-brand);stroke-width:.5px}.robot__face{fill:none;stroke:var(--color-on-brand);stroke-width:.9px;stroke-linecap:round;stroke-linejoin:round}.robot__eye{fill:var(--color-on-brand)}.robot__bot.is-crashed .robot__body{fill:#c2410c}.robot__bot.is-home .robot__body{fill:#15803d}.robot__targets{gap:var(--space-2xs) var(--space-md);margin:var(--space-xs) var(--space-2xs) var(--space-2xs);color:var(--color-ink);font-size:var(--text-min);font-weight:var(--weight-semibold);flex-wrap:wrap;display:flex}.robot__palette{gap:var(--space-xs);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}@media (width>=30rem){.robot__palette{grid-template-columns:repeat(4,minmax(0,1fr))}}.robot__chip{border:2px solid var(--color-brand);border-radius:var(--radius-sm);background:var(--color-brand);min-height:2.6rem;color:var(--color-on-brand);font-size:var(--text-min);font-weight:var(--weight-bold);cursor:grab;transition:transform var(--fast) var(--ease), background-color var(--fast) var(--ease);justify-content:center;align-items:center;gap:.4rem;padding:.3rem .6rem;display:inline-flex;&:hover:not(:disabled){background:var(--color-brand-hover);transform:translateY(-1px)}&:disabled{opacity:.45;cursor:not-allowed}}.robot__chip--repeat{color:var(--color-link);border-color:var(--color-link);background:0 0;&:hover:not(:disabled){background:var(--color-link);color:var(--color-paper)}}.robot__icon{flex:none;width:1.15em;height:1.15em;display:block}.robot__target-note{margin:var(--space-xs) 0 var(--space-sm);color:var(--color-ink);font-size:var(--text-min);font-weight:var(--weight-semibold)}.robot__program-head{justify-content:space-between;align-items:baseline;margin-block-end:var(--space-xs);display:flex}.robot__program-title{margin:0;font-size:1.1875rem}.robot__count{color:var(--color-link);font-size:var(--text-sm);font-weight:var(--weight-bold)}.robot__program,.robot__body{padding:var(--space-sm) var(--space-sm) var(--space-lg);border:2px dashed var(--color-border);border-radius:var(--radius-sm);min-height:3.5rem;margin:0;list-style:none;& li+li{margin-block-start:var(--space-sm)}&.is-drop{border-color:var(--color-link);background:color-mix(in srgb, var(--color-link) 8%, transparent)}}.robot__program{background:var(--color-surface);max-height:17rem;overflow-y:auto}.robot__body{margin:var(--space-2xs) var(--space-sm) 0 var(--space-lg);min-height:3rem;padding-block-end:var(--space-md)}.robot__empty{padding:var(--space-xs);color:var(--color-ink);font-size:var(--text-min)}.robot__block{border-radius:var(--radius-sm);background:color-mix(in srgb, var(--color-brand) 12%, var(--color-surface));border:1px solid color-mix(in srgb, var(--color-brand) 35%, transparent);cursor:grab;&.is-running{outline-offset:1px;outline:3px solid #e0a400}}.robot__block--repeat{background:color-mix(in srgb, var(--color-link) 6%, var(--color-surface));border-color:var(--color-link);padding-block-end:var(--space-xs);&.is-target{box-shadow:0 0 0 3px color-mix(in srgb, var(--color-link) 35%, transparent)}}.robot__block-row{align-items:center;gap:var(--space-2xs);min-height:2.35rem;padding:.1rem .25rem .1rem .5rem;display:flex}.robot__block-label{border-radius:var(--radius-sm);color:var(--color-ink);font-size:var(--text-min);font-weight:var(--weight-bold);cursor:pointer;background:0 0;border:0;align-items:center;gap:.4rem;margin-inline-end:auto;padding:.25rem .4rem;line-height:1.2;display:inline-flex;&[aria-pressed=true]{background:var(--color-link);color:var(--color-paper)}}.robot__block-label--static{cursor:grab}.robot__step,.robot__remove{border:1px solid var(--color-border);background:var(--color-surface);width:1.9rem;height:1.9rem;color:var(--color-ink);font-size:1.1rem;font-weight:var(--weight-bold);cursor:pointer;border-radius:50%;place-items:center;line-height:1;display:grid}.robot__remove{background:0 0;border-color:#0000;font-size:1.4rem}.robot__times{min-width:2.2rem;color:var(--color-link);font-weight:var(--weight-black);text-align:center}.robot__controls{gap:var(--space-xs);flex-wrap:wrap;margin-block-start:var(--space-sm);display:flex;& .button{min-height:2.75rem}& .button:disabled{opacity:.5;cursor:not-allowed;transform:none}}.robot__run{flex:8rem}.robot__solver-callout{gap:var(--space-xs);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-md);background:var(--color-tint);border-inline-start:4px solid var(--color-link);margin-block-start:var(--space-md);display:grid;& p{font-size:var(--text-sm);font-weight:var(--weight-semibold);margin:0}}.robot__solver--prominent{justify-self:start;min-height:2.75rem}.robot__status{min-height:1.5em;margin:var(--space-sm) 0 0;color:var(--color-ink);font-size:var(--text-min);font-weight:var(--weight-semibold)}.robot__result{padding:var(--space-md) var(--space-lg);border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-line);border-inline-start:5px solid #e0a400;margin-block-start:var(--space-sm);& p{margin:var(--space-2xs) 0 0;font-family:var(--font-body);font-size:var(--text-sm)}& .robot__stars{font-size:1.6rem}}.robot__result-head{align-items:center;gap:var(--space-sm);display:flex}.robot__result-title{font-size:var(--text-h4);margin:0}.robot__result-actions{gap:var(--space-xs);flex-wrap:wrap;margin-block-start:var(--space-sm);display:flex}.activity__learn{gap:var(--space-sm);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-md);background:var(--color-tint);border-inline-start:4px solid var(--color-link);margin-block-start:var(--space-md);display:grid;& p{margin:0}}.activity__learn-title{color:var(--color-ink);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--weight-bold)}.activity__learn-open{color:var(--color-link);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--weight-bold);text-underline-offset:.18em;cursor:pointer;background:0 0;border:0;justify-self:start;padding:0;text-decoration:underline}@media (width>=60rem){.activity--game .activity__intro{column-gap:var(--gap);grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);align-items:start;display:grid}.activity--game .activity__intro>:not(.activity__learn){grid-column:1}.activity--game .activity__learn{grid-area:1/2/span 6;margin:0}}.robot-win{text-align:center}.robot-win__inner{justify-items:center;gap:var(--space-sm);width:min(30rem, 100% - (var(--gutter) * 2))}.robot-win__stars{font-size:3rem}.robot-win__title{font-size:var(--text-h3);margin:0}.robot-win__text{max-width:24rem;margin:0}.robot-win__actions{justify-content:center;gap:var(--space-xs);flex-wrap:wrap;margin-block-start:var(--space-sm);display:flex}.robot__drop-marker{border-radius:var(--radius-pill);background:var(--color-link);pointer-events:none;height:.3rem;margin-block:.1rem}.puzzle{font-family:var(--font-ui)}.puzzle__goal{margin-block:0 var(--space-md);font-family:var(--font-ui);font-size:var(--text-h4);font-weight:var(--weight-bold)}.puzzle__stage{gap:var(--space-md);border:1px solid var(--color-line);border-radius:var(--radius-lg);background:var(--color-tint);padding:clamp(1rem,.75rem + 1vw,1.75rem);display:grid;& p{margin:0}}.puzzle__readout,.puzzle__label,.puzzle__layout{font-family:var(--font-ui);font-weight:var(--weight-semibold)}.puzzle__readout{font-size:var(--text-h4)}.puzzle__label{color:var(--color-muted);font-size:var(--text-min)}.puzzle__bit,.puzzle__switch,.puzzle__gate,.puzzle__choice{min-height:var(--touch-min);border:2px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-ink);font-family:var(--font-ui);font-weight:var(--weight-bold);cursor:pointer;&[aria-pressed=true]{border-color:var(--color-brand);background:var(--color-brand);color:var(--color-on-brand)}&:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}}.puzzle__bits{gap:var(--space-xs);grid-template-columns:repeat(8,minmax(0,1fr));display:grid}.puzzle__bit{gap:var(--space-2xs);padding:var(--space-sm) 0;display:grid}.puzzle__bit-value{font-size:clamp(1.5rem,1rem + 2vw,2.25rem);font-weight:var(--weight-black);line-height:1}.puzzle__bit-place{font-size:var(--text-min);opacity:.75}.puzzle__switches,.puzzle__slots,.puzzle__lamps,.puzzle__slot,.puzzle__choices{align-items:center;gap:var(--space-xs);flex-wrap:wrap;display:flex}.puzzle__slots{gap:var(--space-md)}.puzzle__circuit{align-items:flex-end;gap:var(--space-md);flex-wrap:wrap;display:flex}.puzzle__part{gap:var(--space-2xs);display:grid}.puzzle__part-label{color:var(--color-muted);font-family:var(--font-ui);font-size:var(--text-min);font-weight:var(--weight-semibold)}.puzzle__arrow{color:var(--color-muted);padding-block-end:.6rem;font-size:1.5rem;line-height:1}.puzzle__switch,.puzzle__gate{padding-inline:var(--space-md)}.puzzle__slot-label{font-family:var(--font-ui);font-weight:var(--weight-bold)}.puzzle__lamp{align-items:center;gap:var(--space-xs);font-family:var(--font-ui);font-weight:var(--weight-bold);display:inline-flex}.puzzle__lamp-bulb{border:2px solid var(--color-border);background:var(--color-surface);width:2rem;height:2rem;transition:background var(--fast) var(--ease), box-shadow var(--fast) var(--ease);border-radius:50%;.is-on &{background:var(--color-band-accent);box-shadow:0 0 1rem var(--color-band-accent);border-color:#e0a400}}.puzzle__table{border-collapse:collapse;font-family:var(--font-ui);font-size:var(--text-min);text-align:center;& caption{color:var(--color-muted);font-weight:var(--weight-semibold);text-align:start;margin-block-end:var(--space-2xs)}& th,& td{border:1px solid var(--color-line);padding:.3rem .75rem}& .is-ok{color:var(--color-link);font-weight:var(--weight-black)}& .is-current td{background:color-mix(in srgb, var(--color-brand) 18%, transparent)}}.puzzle__coded{font-family:ui-monospace,Cascadia Mono,Consolas,monospace;font-size:clamp(1.25rem,1rem + 1.5vw,2rem);font-weight:var(--weight-bold);letter-spacing:.15em;overflow-wrap:anywhere}.puzzle__key-label{font-family:var(--font-ui);font-weight:var(--weight-bold)}.puzzle__key{width:100%;accent-color:var(--color-brand)}.puzzle__choice{padding-inline:var(--space-md);font-family:ui-monospace,Cascadia Mono,Consolas,monospace;&.is-right{border-color:var(--color-brand);background:var(--color-brand);color:var(--color-on-brand)}&.is-wrong{opacity:.5;text-decoration:line-through}}.puzzle__strip{border:1px solid var(--color-line);border-radius:var(--radius-md);background:var(--color-surface);font-family:ui-monospace,Cascadia Mono,Consolas,monospace;font-weight:var(--weight-bold);text-align:center;grid-template-rows:auto auto;grid-template-columns:max-content;grid-auto-columns:minmax(1.5rem,1fr);grid-auto-flow:column;display:grid;overflow-x:auto;& span{padding:.35rem .15rem}}.puzzle__strip-label{color:var(--color-muted);font-family:var(--font-ui);font-size:var(--text-min);padding-inline:var(--space-sm)!important}.puzzle__strip-secret{border-block-end:1px solid var(--color-line)}.puzzle__strip-real{color:var(--color-link)}.puzzle__answer{gap:var(--space-xs);flex-wrap:wrap;display:flex}.puzzle__answer-input{min-height:var(--touch-min);padding-inline:var(--space-sm);border:2px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-ink);font-family:ui-monospace,Cascadia Mono,Consolas,monospace;font-size:var(--text-h4);letter-spacing:.1em;text-transform:uppercase;flex:16rem}.puzzle__table-wrap{overflow-x:auto}@media (width<=30rem){.puzzle__bits{grid-template-columns:repeat(4,minmax(0,1fr))}.puzzle__strip{font-size:var(--text-sm);grid-auto-columns:minmax(1.25rem,1fr)}}}@layer utilities{.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.text-muted{color:var(--color-muted)}.text-center{text-align:center}.mt-lg{margin-block-start:var(--space-xl)}.mt-2xl{margin-block-start:var(--space-2xl)}}