.xterm{cursor:text;position:relative;user-select:none;-ms-user-select:none;-webkit-user-select:none}.xterm.focus,.xterm:focus{outline:none}.xterm .xterm-helpers{position:absolute;top:0;z-index:5}.xterm .xterm-helper-textarea{padding:0;border:0;margin:0;position:absolute;opacity:0;left:-9999em;top:0;width:0;height:0;z-index:-5;white-space:nowrap;overflow:hidden;resize:none}.xterm .composition-view{background:#000;color:#fff;display:none;position:absolute;white-space:nowrap;z-index:1}.xterm .composition-view.active{display:block}.xterm .xterm-viewport{background-color:#000;overflow-y:scroll;cursor:default;position:absolute;inset:0}.xterm .xterm-screen{position:relative}.xterm .xterm-screen canvas{position:absolute;left:0;top:0}.xterm-char-measure-element{display:inline-block;visibility:hidden;position:absolute;top:0;left:-9999em;line-height:normal}.xterm.enable-mouse-events{cursor:default}.xterm.xterm-cursor-pointer,.xterm .xterm-cursor-pointer{cursor:pointer}.xterm.column-select.focus{cursor:crosshair}.xterm .xterm-accessibility:not(.debug),.xterm .xterm-message{position:absolute;inset:0;z-index:10;color:transparent;pointer-events:none}.xterm .xterm-accessibility-tree:not(.debug) *::selection{color:transparent}.xterm .xterm-accessibility-tree{font-family:monospace;-webkit-user-select:text;user-select:text;white-space:pre}.xterm .xterm-accessibility-tree>div{transform-origin:left;width:fit-content}.xterm .live-region{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.xterm-dim{opacity:1!important}.xterm-underline-1{text-decoration:underline}.xterm-underline-2{text-decoration:double underline}.xterm-underline-3{text-decoration:wavy underline}.xterm-underline-4{text-decoration:dotted underline}.xterm-underline-5{text-decoration:dashed underline}.xterm-overline{text-decoration:overline}.xterm-overline.xterm-underline-1{text-decoration:overline underline}.xterm-overline.xterm-underline-2{text-decoration:overline double underline}.xterm-overline.xterm-underline-3{text-decoration:overline wavy underline}.xterm-overline.xterm-underline-4{text-decoration:overline dotted underline}.xterm-overline.xterm-underline-5{text-decoration:overline dashed underline}.xterm-strikethrough{text-decoration:line-through}.xterm-screen .xterm-decoration-container .xterm-decoration{z-index:6;position:absolute}.xterm-screen .xterm-decoration-container .xterm-decoration.xterm-decoration-top-layer{z-index:7}.xterm-decoration-overview-ruler{z-index:8;position:absolute;top:0;right:0;pointer-events:none}.xterm-decoration-top{z-index:2;position:relative}.xterm .xterm-scrollable-element>.scrollbar{cursor:default}.xterm .xterm-scrollable-element>.scrollbar>.scra{cursor:pointer;font-size:11px!important}.xterm .xterm-scrollable-element>.visible{opacity:1;background:#0000;transition:opacity .1s linear;z-index:11}.xterm .xterm-scrollable-element>.invisible{opacity:0;pointer-events:none}.xterm .xterm-scrollable-element>.invisible.fade{transition:opacity .8s linear}.xterm .xterm-scrollable-element>.shadow{position:absolute;display:none}.xterm .xterm-scrollable-element>.shadow.top{display:block;top:0;left:3px;height:3px;width:100%;box-shadow:var(--vscode-scrollbar-shadow, #000) 0 6px 6px -6px inset}.xterm .xterm-scrollable-element>.shadow.left{display:block;top:3px;left:0;height:100%;width:3px;box-shadow:var(--vscode-scrollbar-shadow, #000) 6px 0 6px -6px inset}.xterm .xterm-scrollable-element>.shadow.top-left-corner{display:block;top:0;left:0;height:3px;width:3px}.xterm .xterm-scrollable-element>.shadow.top.left{box-shadow:var(--vscode-scrollbar-shadow, #000) 6px 0 6px -6px inset}@font-face{font-family:Archivo;src:url(/fonts/archivo.woff2) format("woff2");font-weight:100 900;font-stretch:62% 125%;font-display:swap}@font-face{font-family:Roboto;src:url(/fonts/roboto.woff2) format("woff2");font-weight:100 900;font-display:swap}@font-face{font-family:JetBrains Mono;src:url(/fonts/jetbrains-mono.woff2) format("woff2");font-weight:100 800;font-display:swap}:root{--cobalt:#0842c8;--cobalt-deep:#0735a0;--coral:#ff7a59;--paper:#f7f8fc;--navy:#06142e;--ink:#0b0d14;--muted:#435678;--rule:#d5dbe7;--chip:#e6eaf3;--pass:#1f7a4d;--fail:#b3261e;color-scheme:light;accent-color:var(--cobalt);font-family:Archivo,system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html{background:var(--cobalt)}body{margin:0;background:var(--paper);min-height:100vh}::selection{background:var(--cobalt);color:#fff}a{color:inherit;text-underline-offset:.2em}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default}:focus-visible{outline:3px solid var(--coral);outline-offset:3px}[hidden]{display:none!important}code,pre,.chip{font-family:JetBrains Mono,ui-monospace,monospace}.container{width:min(1360px,calc(100% - (2*clamp(16px,4vw,64px))));margin-inline:auto}.skip-link{position:absolute;left:16px;top:-80px;z-index:5;background:#fff;color:var(--ink);padding:12px 16px;border-radius:8px}.skip-link:focus{top:12px}.masthead{background:var(--cobalt);color:#fff;padding:22px 0 92px}.masthead nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.28)}.brand{display:flex;align-items:center;gap:14px;text-decoration:none;font:600 clamp(26px,2.6vw,40px)/1 Roboto,sans-serif;letter-spacing:-.02em}.brand svg{width:1.3em;height:1.4em}.architecture{border:2px solid currentColor;border-radius:999px;padding:6px 12px;font:500 clamp(14px,1.2vw,19px)/1 Archivo,sans-serif;letter-spacing:0}.nav-actions{display:flex;align-items:center;gap:clamp(16px,2.4vw,36px)}.prepared{font-size:clamp(15px,1.4vw,21px)}.evaluate{background:var(--coral);color:var(--navy);text-decoration:none;font-weight:600;font-size:clamp(15px,1.3vw,19px);padding:13px 20px;border-radius:10px;box-shadow:0 6px 18px #04144647;transition:transform .2s cubic-bezier(.16,1,.3,1),box-shadow .2s}@media(hover:hover){.evaluate:hover{transform:translateY(-1px);box-shadow:0 10px 24px #04144657}}h1{margin:clamp(28px,3.4vw,44px) 0 0;font-weight:780;font-stretch:100%;font-size:clamp(42px,6.6vw,100px);line-height:.94;letter-spacing:-.04em}h1 em{display:block;font-style:normal;color:var(--coral)}.intro{margin:22px 0 0;max-width:68ch;font-size:clamp(17px,1.6vw,23px);line-height:1.4;color:#e4ebff}.sheet-wrap{position:relative;margin-top:-64px}.scenario-tabs{display:flex;justify-content:flex-start;align-items:flex-end;gap:6px;margin:0;padding:0;overflow-x:auto;scrollbar-width:none}.scenario-tab{display:inline-flex;align-items:center;gap:8px;flex:none;background:#f7f8fc29;color:#fff;text-decoration:none;font-size:clamp(15px,1.2vw,18px);padding:10px 20px;border-radius:14px 14px 0 0;transition:background .15s}.scenario-tab[aria-current=page]{background:var(--paper);color:var(--ink);font-weight:700}.scenario-tab:focus-visible{outline:3px solid var(--coral);outline-offset:-3px}.yours{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:2px 7px;border-radius:999px;background:var(--coral);color:var(--navy)}@media(hover:hover){.scenario-tab:not([aria-current=page]):hover{background:#f7f8fc47}}@media(max-width:640px){.scenario-tab{padding:9px 12px;font-size:14px;gap:6px}.yours{font-size:10px;padding:2px 5px}}.preview{margin-top:14px;border-radius:14px;overflow:hidden;border:1px solid var(--rule);background:#fff}.preview-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 14px;background:var(--chip);font-size:14px;color:#23324f}.preview-bar a{color:var(--cobalt);font-weight:700}.preview[data-state=closed] iframe{opacity:.35}.preview iframe{display:block;width:100%;height:160px;border:0;background:#fff}.sheet{display:grid;grid-template-columns:minmax(300px,5fr) minmax(0,8fr);gap:clamp(24px,3vw,44px);background:var(--paper);border-radius:0 26px 26px;padding:clamp(22px,3vw,40px);box-shadow:0 18px 50px #06142e29}.rail{display:flex;flex-direction:column;min-width:0;padding-right:clamp(0px,2vw,32px);border-right:1px solid var(--rule)}.step-count{margin:0;font-weight:700;font-size:15px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}.rail h2{margin:8px 0 14px;font-weight:760;font-size:clamp(26px,2.4vw,34px);line-height:1.08;letter-spacing:-.02em;text-wrap:balance}.rail h2:focus{outline:none}.step-text{font-family:Roboto,system-ui,sans-serif;font-size:17px;line-height:1.5;color:#1b2335}.step-text p{margin:0 0 10px;max-width:62ch}.step-text code{background:var(--chip);border-radius:5px;padding:1px 6px;font-size:.9em}.md-h{margin:18px 0 6px;font:760 20px/1.2 Archivo,sans-serif;letter-spacing:-.01em;color:var(--ink)}.md-code{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;margin:0 0 12px;padding:9px 12px;border:1px solid transparent;border-radius:8px;background:var(--chip);text-align:left;font-size:15px;white-space:pre-wrap}.md-code code{background:none;padding:0;font-size:inherit}.md-run{transition:background .15s,border-color .15s}.md-run:focus-visible,.md-run:active{background:#dfe5f5;border-color:#b9c4dc}.md-run-hint{flex:none;display:inline-flex;align-items:center;gap:6px;font:600 13px/1 Archivo,sans-serif;color:var(--muted);transition:color .15s}.md-run-hint:before{content:"";width:0;height:0;border-left:8px solid currentColor;border-top:5px solid transparent;border-bottom:5px solid transparent}.md-run:focus-visible .md-run-hint{color:var(--cobalt)}@media(hover:hover){.md-run:hover{background:#dfe5f5;border-color:#b9c4dc}.md-run:hover .md-run-hint{color:var(--cobalt)}}body:not([data-linux=ready]) .md-run{cursor:progress}.step-actions{display:flex;align-items:center;flex-wrap:wrap;gap:14px 18px;margin-top:8px}.check,.next{font-weight:650;font-size:18px;padding:10px 24px;border-radius:10px}.check{background:#fff;border:2px solid var(--ink)}@media(hover:hover){.check:hover:not(:disabled){background:var(--ink);color:#fff}}.check:disabled{opacity:.45}.next{background:var(--coral);color:var(--navy);border:2px solid var(--coral)}@media(hover:hover){.next:hover{filter:brightness(1.04)}}.check-result{display:flex;align-items:center;gap:10px;margin:0;font-family:Roboto,sans-serif;font-size:16px;color:#1b2335}.check-result svg{width:26px;height:26px;fill:none;stroke:var(--pass);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}.check-result[data-state=failed]{color:var(--fail)}.check-result[data-state=running]{color:var(--muted)}.check-output{margin-top:10px;font-size:14px;color:var(--muted)}.check-output summary{cursor:pointer}.check-output pre{margin:8px 0 0;padding:10px 12px;border-radius:8px;background:var(--chip);white-space:pre-wrap;overflow-wrap:anywhere;color:var(--ink)}.files{margin-top:auto;padding-top:22px;border-top:1px solid var(--rule)}.step-actions+.check-output+.files,.step-actions+.files{margin-top:28px}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{background:var(--chip);border:1px solid transparent;border-radius:6px;padding:5px 9px;font-size:14px;color:#1b2335}@media(hover:hover){.chip:hover{border-color:#b9c4dc}}.chip[aria-expanded=true]{background:var(--navy);color:#edf3ff}.files-note{margin:10px 0 0;font-family:Roboto,sans-serif;font-size:15px;color:var(--muted)}.file-view{margin:12px 0 0;max-height:260px;overflow:auto;padding:12px 14px;border-radius:8px;background:var(--navy);color:#edf3ff;font-size:13.5px;line-height:1.5;white-space:pre-wrap;overflow-wrap:anywhere}.machine{display:flex;flex-direction:column;min-width:0}.terminal-frame{position:relative;display:flex;height:clamp(420px,58vh,600px);margin-top:20px;background:var(--navy);border-radius:18px;padding:30px 22px 18px}.tag{position:absolute;top:-19px;left:18px;background:var(--coral);color:var(--navy);font-weight:650;font-size:17px;padding:9px 16px;border-radius:12px}.terminal{flex:1;min-width:0;min-height:0}.terminal .xterm{height:100%}.terminal .xterm-viewport{background:var(--navy)!important;scrollbar-color:#2c3f66 var(--navy)}.boot{position:absolute;inset:30px 22px 18px;display:flex;flex-direction:column;justify-content:center;gap:16px;color:#c9d6f3;font-family:JetBrains Mono,monospace;font-size:15px;background:var(--navy)}.boot p{margin:0;max-width:60ch}.boot-bar{width:min(360px,80%);height:4px;border-radius:2px;background:#1b2c52;overflow:hidden}.boot-bar span{display:block;width:8%;height:100%;background:var(--coral);transition:width .4s cubic-bezier(.16,1,.3,1)}.boot[data-state=error] p{color:#ffd2c6}.boot[data-state=error] .boot-bar{display:none}.boot button{align-self:flex-start;background:var(--coral);color:var(--navy);border:0;border-radius:10px;padding:10px 18px;font:600 16px Archivo,sans-serif}.caption{margin:12px 0 0;font-family:Roboto,sans-serif;font-size:16px;color:var(--muted)}.footer{margin:28px 0 0;padding:20px 0 40px;border-top:1px solid var(--rule);font-family:Roboto,sans-serif;font-size:15px;color:var(--muted)}.footer p{margin:0}@media(max-width:900px){.sheet{grid-template-columns:1fr}.rail{padding-right:0;border-right:0}.terminal-frame{height:380px}}@media(max-width:640px){.masthead{padding-bottom:80px}.masthead nav{flex-wrap:wrap}.nav-actions{width:100%;justify-content:space-between;gap:12px}.prepared{font-size:14px}.evaluate{padding:11px 14px;font-size:14px}.sheet{border-radius:0 18px 18px;padding:18px}.terminal-frame{padding:28px 10px 10px;height:340px}.boot{inset:28px 14px 12px}.md-code{font-size:14px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}