@font-face{font-family:Unbounded;font-style:normal;font-display:swap;font-weight:200 900;src:url(/fonts/unbounded-cyrillic-wght-normal.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Unbounded;font-style:normal;font-display:swap;font-weight:200 900;src:url(/fonts/unbounded-latin-ext-wght-normal.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Unbounded;font-style:normal;font-display:swap;font-weight:200 900;src:url(/fonts/unbounded-latin-wght-normal.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Onest;font-style:normal;font-display:swap;font-weight:100 900;src:url(/fonts/onest-cyrillic-wght-normal.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Onest;font-style:normal;font-display:swap;font-weight:100 900;src:url(/fonts/onest-latin-ext-wght-normal.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Onest;font-style:normal;font-display:swap;font-weight:100 900;src:url(/fonts/onest-latin-wght-normal.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--paper:#fff;--paper-2:#f1f2fb;--ink:#14162b;--ink-2:#4b4e6b;--rule:#d5d7ea;--accent:#2335f5;--accent-ink:#fff;--sticker:#ffd43b;--starter:#3ddc97;--builder:#7a3cff;--science:#22c3e6;--threed:#ff7a3d;--focus:#7a3cff;--display:"Unbounded", system-ui, sans-serif;--sans:"Onest", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono:ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--gutter:16px;--max:1120px;--step--1:.875rem;--step-0:1rem;--step-1:1.25rem;--step-2:1.6rem;--step-3:clamp(2.1rem, 7vw, 3.6rem);--step-4:clamp(2.2rem, 10vw, 5.4rem);color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--paper:#0d0f24;--paper-2:#171a38;--ink:#eef0ff;--ink-2:#a9add0;--rule:#2c3060;--accent:#8a95ff;--accent-ink:#0d0f24;--focus:#b48cff}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--paper);color:var(--ink);font:400 var(--step-0)/1.6 var(--sans);text-rendering:optimizelegibility;margin:0}img{max-width:100%;height:auto;display:block}a{color:inherit;text-underline-offset:3px;text-decoration-thickness:1px}a:hover{color:var(--accent)}:focus-visible{outline:2px solid var(--focus);outline-offset:3px}.wrap{width:100%;max-width:var(--max);padding:0 var(--gutter);margin:0 auto}@media (width>=720px){:root{--gutter:32px}}h1,h2,h3{font-family:var(--display);letter-spacing:-.015em;overflow-wrap:break-word;hyphens:auto;margin:0 0 .5em;font-weight:500;line-height:1.08}.lead,p{overflow-wrap:break-word}h1{font-size:var(--step-3)}h2{font-size:var(--step-2)}h3{font-size:var(--step-1)}p{max-width:64ch;margin:0 0 1em}.label{font:500 var(--step--1)/1.3 var(--mono);text-transform:uppercase;letter-spacing:.04em;color:var(--ink-2)}.lead{font-size:var(--step-1);color:var(--ink-2);max-width:46ch;line-height:1.45}.skip{position:absolute;left:-999px}.skip:focus{left:var(--gutter);background:var(--paper);z-index:10;padding:8px 12px;top:8px}.site-header{border-bottom:1px solid var(--ink)}.site-header .wrap{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px;padding-top:14px;padding-bottom:14px;display:flex}.brand{font:600 var(--step-0)/1 var(--mono);letter-spacing:.02em;align-items:center;gap:8px;text-decoration:none;display:inline-flex}.brand-mark{background:var(--accent);width:14px;height:14px;display:inline-block}.nav{font-size:var(--step--1);flex-wrap:wrap;order:3;gap:0 18px;width:100%;display:flex}.nav a,.lang-switch a{border-bottom:2px solid #0000;align-items:center;min-height:44px;text-decoration:none;display:inline-flex}.nav a[aria-current=page]{border-bottom-color:var(--accent)}.lang-switch{font:600 var(--step-0)/1 var(--mono);gap:4px;display:flex}.lang-switch a{text-transform:uppercase;justify-content:center;min-width:44px;padding:0 8px}.lang-switch a[aria-current=true]{color:var(--accent);border-bottom-color:var(--accent)}@media (forced-colors:active){.nav a[aria-current],.lang-switch a[aria-current]{text-decoration:underline}}@media (width>=860px){.nav{width:auto;font-size:var(--step-0);order:0}}.section{border-bottom:1px solid var(--rule);padding:48px 0}@media (width>=720px){.section{padding:80px 0}}.section-head{gap:8px;margin-bottom:28px;display:grid}.hero{color:#fff;background:#2335f5;padding:36px 0 56px;position:relative;overflow:hidden}.hero .wrap{position:relative}.sky{pointer-events:none;position:absolute;inset:0}.sky span{background:var(--sticker);clip-path:polygon(50% 0,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);opacity:.8;width:22px;height:22px;position:absolute;top:-40px}.sky span.rock{clip-path:polygon(20% 0,75% 5%,100% 45%,80% 95%,25% 100%,0 55%);background:#7a3cff;width:30px;height:26px}.sky span:first-child{left:4%}.sky span:nth-child(2){left:13%}.sky span:nth-child(3){left:22%}.sky span:nth-child(4){left:30%}.sky span:nth-child(5){left:38%}.sky span:nth-child(6){left:47%}.sky span:nth-child(7){left:55%}.sky span:nth-child(8){left:62%}.sky span:nth-child(9){left:70%}.sky span:nth-child(10){left:77%}.sky span:nth-child(11){left:84%}.sky span:nth-child(12){left:90%}.sky span:nth-child(13){left:95%}.sky span:nth-child(14){left:8%}@media (prefers-reduced-motion:no-preference){.sky span{animation:9s linear infinite fall}.sky span:nth-child(3n){animation-duration:6.5s}.sky span:nth-child(4n+1){animation-duration:12s}.sky span:nth-child(2){animation-delay:-2s}.sky span:nth-child(3){animation-delay:-5s}.sky span:nth-child(4){animation-delay:-1s}.sky span:nth-child(5){animation-delay:-7s}.sky span:nth-child(6){animation-delay:-3s}.sky span:nth-child(7){animation-delay:-8s}.sky span:nth-child(8){animation-delay:-4s}.sky span:nth-child(9){animation-delay:-6s}.sky span:nth-child(10){animation-delay:-.5s}.sky span:nth-child(11){animation-delay:-9s}.sky span:nth-child(12){animation-delay:-2.5s}.sky span:nth-child(13){animation-delay:-5.5s}.sky span:nth-child(14){animation-delay:-10s}@keyframes fall{to{transform:translateY(1100px)rotate(540deg)}}}@media (prefers-reduced-motion:reduce){.sky span:nth-child(odd){top:30%}.sky span:nth-child(3n){top:70%}}.hero-stage{justify-self:center;padding-bottom:8px;position:relative}.prompt-bubble{color:#14162b;background:#fff;border-radius:20px 20px 20px 4px;max-width:210px;margin:0;padding:12px 16px;font-size:.95rem;font-weight:500;line-height:1.35;position:absolute;top:34%;left:-14px;transform:rotate(3deg);box-shadow:6px 6px #14162b}@media (width>=820px){.prompt-bubble{top:120px;bottom:auto;left:-120px;transform:rotate(-3deg)}}.hero .wrap{align-items:center;gap:32px;display:grid}.hero h1{letter-spacing:-.035em;hyphens:none;max-width:9ch;margin:0 0 20px;font-size:clamp(2.6rem,13vw,6.4rem);font-weight:800;line-height:.95}.hero .lead{color:#dfe3ff;max-width:32ch}.hero .actions{margin-top:28px}.hero a:hover{color:inherit}.hero .btn{color:#fff;background:0 0;border-color:#fff}.hero .btn:hover{color:#2335f5;background:#fff}.hero .btn-play{background:var(--sticker);border-color:var(--sticker);color:#14162b;font-family:var(--display);font-weight:700}.hero .btn-play:hover{color:#14162b;background:#fff;border-color:#fff}.hero-poster{aspect-ratio:4/5;width:min(70vw,300px);box-shadow:12px 12px 0 var(--sticker);border:10px solid #14162b;border-radius:32px;display:block;overflow:hidden;transform:rotate(-4deg)}.hero-poster img{object-fit:cover;object-position:center bottom;width:100%;height:100%}.hero-poster:hover,.hero-poster:focus-visible{transform:rotate(0)scale(1.02)}.hero-tag{background:var(--sticker);color:#14162b;border-radius:999px;padding:4px 12px;font-weight:600;display:inline-block;transform:rotate(-2deg)}@media (prefers-reduced-motion:no-preference){.hero-poster{transition:transform .25s;animation:.9s cubic-bezier(.2,1.4,.4,1) .15s backwards deal}@keyframes deal{0%{opacity:0;transform:translateY(60px)rotate(12deg)}}}@media (width>=820px){.hero{padding:72px 0 88px}.hero .wrap{grid-template-columns:1.3fr 1fr}}.btn{min-height:48px;font:500 var(--step-0)/1 var(--sans);border:1px solid var(--ink);color:var(--ink);background:0 0;align-items:center;gap:10px;padding:0 20px;text-decoration:none;display:inline-flex}.btn:hover{background:var(--ink);color:var(--paper)}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn-primary:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}.btn .arrow{font-family:var(--mono)}.steps{counter-reset:step;gap:0;margin:0;padding:0;list-style:none;display:grid}.steps li{border-top:1px solid var(--ink);counter-increment:step;grid-template-columns:3rem 1fr;align-content:start;gap:4px 12px;padding:18px 0 22px;display:grid}.steps li:before{content:counter(step, decimal-leading-zero);font:500 var(--step--1)/1.6 var(--mono);color:var(--accent);grid-row:span 2}.steps h3{font-size:var(--step-1);margin:0}.steps p{color:var(--ink-2);margin:0}@media (width>=860px){.steps{grid-template-columns:repeat(4,1fr);gap:0 24px}.steps li{grid-template-columns:1fr}.steps li:before{grid-row:auto}}.ladder{border-left:1px solid var(--rule);border-top:1px solid var(--rule);grid-template-columns:repeat(2,minmax(0,1fr));margin:0;padding:0;list-style:none;display:grid}.ladder li{border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);flex-direction:column;justify-content:space-between;min-height:104px;padding:16px;display:flex}.ladder .n{font:500 var(--step-2)/1 var(--display)}.ladder li.on .n{color:var(--accent)}@media (width>=720px){.ladder{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width>=1000px){.ladder{grid-template-columns:repeat(6,minmax(0,1fr))}}.ladder .state{font:500 .75rem/1.3 var(--mono);color:var(--ink-2);margin-top:6px}.ladder li.on .state{color:var(--accent)}.rows{border-top:1px solid var(--ink);margin:0;padding:0;list-style:none}.row{border-bottom:1px solid var(--rule)}.row a.row-link{gap:6px;padding:20px 0;text-decoration:none;display:grid}.row a.row-link:hover h2,.row a.row-link:hover h3{color:var(--accent)}.row h2,.row h3{font-size:var(--step-1);margin:0}.row p{color:var(--ink-2);margin:0}.meta{flex-wrap:wrap;gap:6px 16px;display:flex}@media (width>=860px){.row a.row-link{grid-template-columns:8rem minmax(0,1fr) 14rem;align-items:baseline;gap:24px}}.facts{border-top:1px solid var(--ink);grid-template-columns:repeat(2,minmax(0,1fr));margin:24px 0 32px;display:grid}.facts div{border-bottom:1px solid var(--rule);padding:12px 0}.facts dt{margin:0 0 4px}.facts dd{margin:0}@media (width>=720px){.facts{grid-template-columns:repeat(4,minmax(0,1fr))}}.prose{max-width:68ch}.prose h2{font-size:var(--step-2);margin-top:1.6em}.prose ol,.prose ul{padding-left:1.3em}.prose li{margin:.35em 0}.prose code{font-family:var(--mono);background:var(--paper-2);padding:.1em .35em;font-size:.9em}.prose pre{background:var(--paper-2);white-space:pre-wrap;overflow-wrap:anywhere;font-size:var(--step--1);border-left:3px solid var(--ink);padding:14px 16px;line-height:1.5}.prose pre code{background:0 0;padding:0}.prose blockquote{border-left:3px solid var(--accent);color:var(--ink-2);margin:1.4em 0;padding:4px 0 4px 18px}.callout{border:1px solid var(--ink);background:var(--paper-2);margin:32px 0;padding:20px}.callout .label{color:var(--accent)}.callout p{margin:8px 0 0}.tool-grid{border-top:1px solid var(--ink);gap:0;margin:0;padding:0;list-style:none;display:grid}.tool{border-bottom:1px solid var(--rule);gap:8px;padding:20px 0;display:grid}.tool h2{font-size:var(--step-1);margin:0}.prose table{border-collapse:collapse;display:block;overflow-x:auto}.tag{font:500 .75rem/1 var(--mono);text-transform:uppercase;letter-spacing:.06em;border:1px solid var(--rule);padding:5px 7px}.tag.warn{border-color:var(--accent);color:var(--accent)}@media (width>=720px){.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:32px}}.site-footer{font-size:var(--step--1);color:var(--ink-2);padding:40px 0 56px}.site-footer .wrap{gap:12px;display:grid}@media (width>=720px){.site-footer .wrap{grid-template-columns:1fr auto}}@media (prefers-reduced-motion:no-preference){a,.btn{transition:color .15s,background-color .15s,border-color .15s}}.actions{flex-wrap:wrap;gap:12px;display:flex}.reviewed{margin-top:32px}.steps li>*,.rows li,.tool{min-width:0}.tool .links a{align-items:center;min-height:44px;display:inline-flex}@media print{.site-header,.site-footer,.actions,.skip{display:none!important}body{color:#000;background:#fff;font-size:11pt}.section{border:0;padding:0}.prose a[href^="https://"]:after{content:" (" attr(href) ")";font-size:.85em}.callout{background:0 0;border:1px solid #000}}@media (width>=720px){h1,h2,h3{hyphens:manual}}.soon{color:var(--ink-2);font-size:var(--step--1);align-self:center;margin:0}.more{margin-top:20px}.starter-note{color:var(--ink-2);font-size:var(--step--1);margin-top:12px}.chooser{align-content:center;gap:24px;min-height:70vh;display:grid}.chooser .actions .btn{justify-content:center;min-width:160px}.tracks{gap:20px;display:grid}@media (width>=820px){.tracks{grid-template-columns:1fr 1fr;gap:28px}}.track{color:#14162b;box-shadow:8px 8px 0 var(--ink);border:3px solid #14162b;border-radius:28px;padding:28px 24px}.track-starter{background:var(--starter);transform:rotate(-.6deg)}.track-builder{background:var(--builder);color:#fff;transform:rotate(.6deg)}.track h3{letter-spacing:-.03em;margin:4px 0 6px;font-size:clamp(2.2rem,9vw,3.4rem);font-weight:800}.track-who{margin:0;font-weight:700}.track-hint{color:#fff;font-size:var(--step--1);background:#14162b;border-radius:999px;margin:0 0 14px;padding:3px 12px;display:inline-block}.track-builder .track-hint{background:var(--sticker);color:#14162b}.track-list{gap:8px;margin:18px 0 0;padding:0;list-style:none;display:grid}.track-list li{color:#14162b;background:#ffffffe0;border-radius:14px}.track-list a,.track-list li.soon{justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;font-weight:600;text-decoration:none;display:flex}.track-list a:hover{color:var(--accent)}.track-list span{font-weight:500;font-size:var(--step--1);color:#4b4e6b;flex:none}.track-list li.soon{opacity:.9}.track-list li.soon span{background:var(--sticker);color:#14162b;border-radius:999px;padding:1px 10px}.track .track-go{color:#fff;background:#14162b;border-color:#14162b;margin-top:18px}.track .track-go:hover{color:#14162b;background:#fff}.track-block{margin-top:40px}.track-head{border:3px solid #14162b;border-radius:20px;flex-wrap:wrap;align-items:baseline;gap:4px 16px;padding:18px 20px;display:flex}.track-head h2{margin:0}.track-head p{margin:0;font-weight:600}.track-block.track-starter .track-head{background:var(--starter);color:#14162b}.track-block.track-builder .track-head{background:var(--builder);color:#fff}.track-block.track-starter,.track-block.track-builder{background:0 0;transform:none}.row-soon .row-link{padding-block:14px}.row-soon h3{color:var(--ink-2);margin:0}.mission-example{align-items:center;gap:20px;margin:24px 0 32px;display:grid}@media (width>=720px){.mission-example{grid-template-columns:260px 1fr}}.mission-poster{aspect-ratio:4/5;width:min(64vw,260px);box-shadow:8px 8px 0 var(--sticker);border:8px solid #14162b;border-radius:26px;display:block;overflow:hidden;transform:rotate(-2deg)}.mission-poster img{object-fit:cover;object-position:center bottom;width:100%;height:100%}.btn-play{background:var(--sticker);border-color:var(--sticker);color:#14162b;font-family:var(--display);font-weight:700}.btn-play:hover{color:#fff;background:#14162b;border-color:#14162b}.tested{color:var(--ink-2);margin:12px 0 0;font-weight:600}.sticker-badge{background:var(--sticker);color:#14162b;border-radius:999px;margin:0 0 8px;padding:4px 10px;font-size:14px;font-weight:700;display:inline-block;transform:rotate(-2deg)}.share{margin-top:32px}.share-links{flex-wrap:wrap;gap:8px;margin:10px 0;padding:0;list-style:none;display:flex}.share-links a{border:1px solid var(--ink);border-radius:999px;padding:8px 14px;font-weight:600;text-decoration:none;display:inline-block}.share-links a:hover,.share-links a:focus-visible{background:var(--sticker);color:#14162b}.share code{border:1px solid var(--ink);word-break:break-all;user-select:all;margin-top:6px;padding:6px 10px;display:inline-block}.suggest-form{gap:20px;max-width:640px;margin-top:32px;display:grid}.suggest-form label{gap:6px;font-weight:600;display:grid}.suggest-form textarea,.suggest-form input[type=text]{font:inherit;border:1px solid var(--ink);background:var(--paper);color:var(--ink);box-sizing:border-box;border-radius:6px;width:100%;padding:10px 12px;font-weight:400}.suggest-form fieldset{border:1px solid var(--ink);border-radius:6px;gap:8px;padding:12px 14px;display:grid}.suggest-form legend{padding:0 4px;font-weight:600}.suggest-form .choice{align-items:flex-start;gap:10px;font-weight:400;display:flex}.suggest-form .hp{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.nav a.nav-cta{background:var(--sticker);color:#14162b;border-bottom:0;border-radius:999px;align-self:center;min-height:36px;margin:4px 0;padding:0 12px;font-weight:700}.nav a.nav-cta[aria-current=page]{box-shadow:0 0 0 2px var(--accent)}.suggest-cta{background:var(--sticker);color:#14162b;border:2px solid #14162b;border-radius:16px;gap:8px;margin:40px 0 8px;padding:22px 20px;text-decoration:none;display:grid;transform:rotate(-.6deg);box-shadow:5px 5px #14162b}.suggest-cta:hover,.suggest-cta:focus-visible{transform:rotate(0)translate(-2px,-2px);box-shadow:7px 7px #14162b}.suggest-cta-title{font-family:var(--display);font-size:var(--step-1,1.35rem);font-weight:800;line-height:1.15}.suggest-cta-body{max-width:52ch}.suggest-cta-go{text-underline-offset:3px;font-weight:700;text-decoration:underline}@media (prefers-reduced-motion:reduce){.suggest-cta,.suggest-cta:hover{transform:none}}.diff,.track-list span.diff{color:#14162b}.diff{letter-spacing:0;text-transform:none;color:#14162b;vertical-align:1px;border-radius:999px;padding:2px 8px;font-size:.85em;font-weight:700;display:inline-block}.diff-0{background:#3ddc97}.diff-1{background:#ffd43b}.diff-2{background:#ff8a3d}.diff-3{background:#b98cff}.track-science{background:var(--science);color:#14162b;transform:rotate(.5deg)}.track-threed{background:var(--threed);color:#14162b;transform:rotate(-.5deg)}.track-block.track-science .track-head{background:var(--science);color:#14162b}.track-block.track-threed .track-head{background:var(--threed);color:#14162b}.track-block.track-science,.track-block.track-threed{background:0 0;transform:none}.beta-note{border:2px dashed;border-radius:10px;padding:6px 12px;font-weight:600;display:inline-block}