@font-face{font-family:Geist;src:url(/assets/Geist-Regular-rEkwi4hp.woff2) format("woff2");font-weight:400;font-display:swap}@font-face{font-family:Geist;src:url(/assets/Geist-Medium-DdmPy8f2.woff2) format("woff2");font-weight:500;font-display:swap}@font-face{font-family:Geist Mono;src:url(/assets/GeistMono-Regular-DHEw6VMZ.woff2) format("woff2");font-weight:400;font-display:swap}@font-face{font-family:Geist Mono;src:url(/assets/GeistMono-Medium-DceA7jXG.woff2) format("woff2");font-weight:500;font-display:swap}@font-face{font-family:Geist Fallback;src:local("Arial");size-adjust:104%;ascent-override:96%;descent-override:24%;line-gap-override:0%}@font-face{font-family:Geist Mono Fallback;src:local("Menlo"),local("Consolas"),local("Courier New");size-adjust:99.7%;ascent-override:96%;descent-override:24%;line-gap-override:0%}:root{color-scheme:dark;--bg: #0a0a0a;--panel: #0f0f0f;--bg2: #141414;--bg3: #1c1c1c;--stroke: #252525;--stroke-strong: #3a3a3a;--outline: rgb(255 255 255 / .15);--text-high: #ffffff;--text-medium: #cfcfcf;--text-low: #989898;--raised: #171717;--tonal: rgb(255 255 255 / .05);--tonal-hover: rgb(255 255 255 / .09);--brand: #ff6900;--brand-high: #ff7300;--brand-text: #ff7a1f;--brand-wash: rgb(255 105 0 / .1);--on-brand: #ffffff;--live: #0ecc5f;--caution: #ffb27a;--negative: #ff5a4f;--band-start: rgb(255 105 0 / .3);--glow: rgb(255 105 0 / .2);--beam: .3;--ease-out: cubic-bezier(.23, 1, .32, 1);--sans: "Geist", "Geist Fallback", ui-sans-serif, system-ui, sans-serif;--mono: "Geist Mono", "Geist Mono Fallback", ui-monospace, "SF Mono", Menlo, monospace;--container: 1120px;--gutter: 20px}@media(prefers-color-scheme:light){:root:not([data-theme]){color-scheme:light;--bg: #fafafa;--panel: #ffffff;--bg2: #f4f4f5;--bg3: #e4e4e7;--stroke: #e4e4e7;--stroke-strong: #a1a1aa;--outline: rgb(9 9 11 / .18);--text-high: #09090b;--text-medium: #3f3f47;--text-low: #63636d;--raised: #f1f1f2;--tonal: rgb(9 9 11 / .05);--tonal-hover: rgb(9 9 11 / .09);--brand-high: #f05f00;--brand-text: #c44f00;--brand-wash: rgb(255 105 0 / .08);--live: #0a8f43;--caution: #b45309;--negative: #d1342a;--band-start: rgb(255 105 0 / .18);--glow: rgb(255 105 0 / .12);--beam: .42}}:root[data-theme=light]{color-scheme:light;--bg: #fafafa;--panel: #ffffff;--bg2: #f4f4f5;--bg3: #e4e4e7;--stroke: #e4e4e7;--stroke-strong: #a1a1aa;--outline: rgb(9 9 11 / .18);--text-high: #09090b;--text-medium: #3f3f47;--text-low: #63636d;--raised: #f1f1f2;--tonal: rgb(9 9 11 / .05);--tonal-hover: rgb(9 9 11 / .09);--brand-high: #f05f00;--brand-text: #c44f00;--brand-wash: rgb(255 105 0 / .08);--live: #0a8f43;--caution: #b45309;--negative: #d1342a;--band-start: rgb(255 105 0 / .18);--glow: rgb(255 105 0 / .12);--beam: .42}@media(prefers-contrast:more){:root{--on-brand: #0a0a0a}}*,*:before,*:after{box-sizing:border-box;border-radius:0}html{scroll-padding-top:24px;-webkit-text-size-adjust:100%;text-size-adjust:100%}html,body{margin:0;background:var(--bg);color:var(--text-high);font-family:var(--sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{min-height:100dvh;display:flex;flex-direction:column}main{flex:1 0 auto}::selection{background:var(--brand);color:var(--on-brand)}a{color:inherit;text-decoration-color:var(--stroke-strong);text-underline-offset:3px;transition:text-decoration-color .16s var(--ease-out)}a:hover{text-decoration-color:currentColor}button,input{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--brand);outline-offset:2px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.skip{position:absolute;left:12px;top:-80px;z-index:10;padding:10px 14px;background:var(--panel);border:1px solid var(--outline)}.skip:focus{top:12px}.wrap{width:100%;max-width:calc(var(--container) + 2 * var(--gutter));margin:0 auto;padding:0 var(--gutter)}.label{font-size:13px;line-height:18px}.pressable{transition:transform .16s var(--ease-out),background-color .16s var(--ease-out),border-color .16s var(--ease-out),color .16s var(--ease-out)}.pressable:active:not(:disabled){transform:scale(.97)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border:1px solid var(--outline);background:none;color:var(--text-high);font-family:var(--sans);font-size:15px;line-height:18px;font-weight:500;letter-spacing:.007em;cursor:pointer;text-decoration:none;white-space:nowrap;user-select:none;-webkit-tap-highlight-color:transparent}.btn:hover:not(:disabled),.copy:hover,.file:hover{border-color:var(--text-low);background:var(--bg2)}.btn:disabled{cursor:not-allowed;opacity:.45}.btn.btn-primary{border-color:transparent;background:var(--brand);color:var(--on-brand)}.btn.btn-primary:hover:not(:disabled){border-color:transparent;background:var(--brand-high)}.btn-compact{min-height:40px;padding:0 14px;font-size:14px}.top{position:relative;z-index:2}.top-row{display:flex;align-items:center;gap:16px;min-height:50px}.brand{display:inline-flex;align-items:center;gap:11px;min-height:44px;text-decoration:none;color:var(--text-high)}.xe-mark{width:21px;height:22px;color:var(--text-high);flex:none}.brand-name{font-size:16px;line-height:16px}.status{display:inline-flex;align-items:center;gap:6px;height:24px;margin-left:auto;padding:0 8px;border:1px solid color-mix(in srgb,var(--caution) 45%,transparent);background:color-mix(in srgb,var(--caution) 8%,transparent);color:var(--caution);font-size:13px;line-height:18px;font-weight:500;white-space:nowrap}.dot{width:6px;height:6px;background:var(--caution);flex:none}.theme{display:inline-flex;gap:2px;padding:2px;border:1px solid var(--stroke)}.theme button{min-height:28px;min-width:44px;padding:0 10px;border:0;background:none;color:var(--text-low);font-size:13px;cursor:pointer}.theme button:hover{background:var(--tonal);color:var(--text-high)}.theme button[aria-pressed=true]{position:relative;color:var(--text-high);background:var(--tonal-hover);box-shadow:inset 0 -1.5px 0 var(--brand)}.theme button:focus-visible{position:relative;z-index:1}@media(pointer:coarse){.theme button{min-height:40px}}.hero{position:relative;overflow:hidden;margin-top:-50px;padding-top:50px;border-bottom:1px solid var(--stroke);background:radial-gradient(ellipse 60% 70% at 78% 90%,rgb(255 105 0 / .05),transparent 72%)}.hero:before{--line: linear-gradient(180deg, rgb(255 105 0 / .95), rgb(255 105 0 / .25) 45%, rgb(255 105 0 / 0));content:"";position:absolute;top:0;left:max(0px,calc(50% - var(--container) / 2 - var(--gutter)));width:min(100%,640px);height:260px;opacity:var(--beam);pointer-events:none;background:var(--line) 2.9% 0 / 1px 108px no-repeat,var(--line) 11.3% 0 / 1px 131px no-repeat,var(--line) 20.1% 0 / 1px 252px no-repeat,var(--line) 32.5% 0 / 1px 154px no-repeat,var(--line) 40.9% 0 / 1px 189px no-repeat,var(--line) 50.9% 0 / 2px 155px no-repeat,var(--line) 60.7% 0 / 2px 155px no-repeat,var(--line) 71.1% 0 / 2px 249px no-repeat,var(--line) 74.6% 0 / 1px 220px no-repeat,var(--line) 87.8% 0 / 1px 260px no-repeat,var(--line) 96.5% 0 / 2px 139px no-repeat,radial-gradient(90% 165px at 50% 0,#ff690066,#ff690000);-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}.hero-row{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);min-height:460px}.hero-copy{position:relative;z-index:1;display:flex;flex-direction:column;align-items:flex-start;gap:16px;padding:72px 0 64px}.hero-title{margin:0;font-size:clamp(44px,5.4vw,76px);line-height:.95;letter-spacing:-.045em;font-weight:400}.accent{color:var(--brand);white-space:nowrap}.lead{margin:4px 0 0;max-width:46ch;font-size:17px;line-height:1.5;color:var(--text-medium)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}.hero-art{position:relative}.other-way{margin:28px 0 0;padding:16px 20px 20px;border-left:2px solid var(--brand);background:var(--brand-wash)}.other-way p{margin:0 0 12px}.other-way p:last-child{margin:0}.hero-lattice{position:absolute;inset:auto -6% -4%;width:112%;height:96%;color:var(--text-high);overflow:visible;pointer-events:none;-webkit-mask-image:linear-gradient(#0000,#000 22%);mask-image:linear-gradient(#0000,#000 22%)}.iso-ground{fill:none;stroke:currentColor;stroke-opacity:.13;stroke-width:1;stroke-dasharray:3 6}.iso-spine{fill:none;stroke:currentColor;stroke-opacity:.18;stroke-width:1;stroke-dasharray:2 4}.iso-block polygon{stroke:currentColor;stroke-opacity:.34;stroke-width:1;stroke-linejoin:round}.iso-t,.iso-l,.iso-r{fill:var(--bg)}.iso-block .iso-hatch{fill:url(#iso-hatch);stroke:none}.iso-you .iso-block polygon{stroke:#ffb27a;stroke-opacity:.55}.iso-you .iso-t{fill:url(#iso-you-top)}.iso-you .iso-r{fill:#d95800}.iso-you .iso-l{fill:#a84300}.iso-you .iso-spine{stroke:var(--brand);stroke-opacity:.5}.iso-label{font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;fill:currentColor;fill-opacity:.42}.iso-arc{fill:none;stroke:currentColor;stroke-opacity:.5;stroke-width:1;stroke-dasharray:2 5}.iso-word{fill-opacity:.6}.iso-callout rect{fill:var(--text-high)}.iso-callout .iso-label{fill:var(--brand-text);fill-opacity:1}.section{border-bottom:1px solid var(--stroke);padding:56px 0}.section-body{min-width:0;max-width:760px}.section-body>:first-child,.section-body>.sr-only+*{margin-top:0}.section-body>:last-child{margin-bottom:0}h2{margin:0 0 16px;font-size:30px;line-height:34px;letter-spacing:-.03em;font-weight:400}h3{margin:36px 0 10px;font-size:19px;line-height:26px;letter-spacing:-.015em;font-weight:500}p,ul,ol,dl{margin:0 0 16px}.section-body p,.section-body li{color:var(--text-medium)}.section-body strong{color:var(--text-high);font-weight:500}ul.plain{padding-left:20px}ul.plain li{margin-bottom:8px}ul.plain li::marker{color:var(--text-low)}code,kbd{font-family:var(--mono);font-size:.875em}p code,li code,td code,dd code{padding:1px 5px;background:var(--raised);border:1px solid var(--stroke);color:var(--text-high);overflow-wrap:anywhere}.small{font-size:14px;line-height:21px;color:var(--text-low)}.note{margin:0 0 20px;padding:14px 16px;border-left:2px solid var(--brand);background:var(--brand-wash)}.note p{margin:0}.note p+p{margin-top:8px}.facts{margin:0 0 20px;border-top:1px solid var(--stroke)}.facts>div{display:grid;grid-template-columns:200px minmax(0,1fr);gap:16px;padding:12px 0;border-bottom:1px solid var(--stroke)}.facts dt{padding-top:3px;color:var(--text-low)}.facts dd{margin:0;color:var(--text-high);min-width:0}.facts dd .small{display:block;margin-top:4px}.hash{font-family:var(--mono);font-size:13px;line-height:20px;overflow-wrap:anywhere;word-break:break-all}ol.steps{list-style:none;padding:0;counter-reset:step}ol.steps>li{position:relative;counter-increment:step;padding:0 0 22px 32px;min-height:34px}ol.steps>li:before{content:counter(step) ".";position:absolute;left:0;top:0;font-weight:500;color:var(--brand-text)}ol.steps>li>:last-child{margin-bottom:0}ol.steps>li>p{margin-bottom:10px}.code{position:relative;display:flex;align-items:stretch;margin:0 0 14px;border:1px solid var(--stroke);background:var(--panel)}.code pre{flex:1 1 auto;min-width:0;margin:0;padding:12px 14px;overflow-x:auto;font-family:var(--mono);font-size:13px;line-height:20px;color:var(--text-high)}.code pre code{padding:0;border:0;background:none;font-size:inherit;white-space:pre-wrap;overflow-wrap:anywhere}.nb{white-space:nowrap}.code-wrap pre code{white-space:pre-wrap;word-break:break-all}.code-label{margin:0 0 6px;color:var(--text-low)}.copy{flex:none;min-width:68px;padding:0 12px;border:0;border-left:1px solid var(--stroke);background:none;color:var(--text-low);font-size:13px;cursor:pointer}.copy:hover{color:var(--text-high)}.table{width:100%;margin:0 0 20px;border-collapse:collapse;font-size:15px}.table caption{text-align:left;padding-bottom:10px;color:var(--text-low)}.table th,.table td{padding:12px 16px 12px 0;text-align:left;vertical-align:top;border-bottom:1px solid var(--stroke)}.table thead th{border-top:1px solid var(--stroke);color:var(--text-low);font-size:13px;font-weight:400}.table tbody th{font-weight:500;color:var(--text-high);white-space:nowrap}.table td{color:var(--text-medium)}.yes{color:var(--live)}.no{color:var(--negative)}.files{list-style:none;padding:0;margin:0 0 20px;border-top:1px solid var(--stroke)}.files>li{padding:14px 0;border-bottom:1px solid var(--stroke)}.file-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin-bottom:6px}.file-row .what{flex:1 1 200px;color:var(--text-high)}.file{display:inline-flex;align-items:center;min-height:36px;padding:0 12px;border:1px solid var(--outline);font-family:var(--mono);font-size:13px;text-decoration:none;color:var(--text-high)}.screen{margin:0 0 20px;border:1px solid var(--stroke);background:var(--panel);max-width:520px}.screen-title{margin:0;padding:12px 16px;border-bottom:1px solid var(--stroke);font-size:16px;line-height:22px;font-weight:500;color:var(--text-high);white-space:pre-line}.screen-sub{display:block;margin-top:2px;font-size:13px;font-weight:400;color:var(--text-low)}.screen dl{margin:0;padding:4px 16px}.screen dl>div{padding:9px 0;border-bottom:1px solid var(--stroke)}.screen dl>div:last-child{border-bottom:0}.screen dt{font-size:12px;line-height:16px;color:var(--text-low)}.screen dd{margin:2px 0 0;font-family:var(--mono);font-size:13px;line-height:20px;color:var(--text-high);overflow-wrap:anywhere;white-space:pre-line}.screen-end{margin:0;padding:12px 16px;border-top:1px solid var(--stroke);font-size:14px;color:var(--text-high);white-space:pre-line}.screen figcaption{padding:10px 16px;border-top:1px solid var(--stroke);font-size:13px;line-height:19px;color:var(--text-low)}.mark-tile{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;flex:none;background:var(--bg2);border:1px solid var(--stroke)}.btn .mark-tile{width:28px;height:28px;margin-left:-8px}.ledger-mark{display:block;width:16px;height:16px;background:var(--text-high);-webkit-mask:url(/assets/ledger-mark-_-Ktvb-T.svg) center / contain no-repeat;mask:url(/assets/ledger-mark-_-Ktvb-T.svg) center / contain no-repeat}.with-mark{display:flex;align-items:center;gap:12px}.status-line{display:flex;align-items:baseline;gap:10px;margin:0;max-width:52ch;padding:10px 14px;border-left:2px solid var(--brand);background:var(--brand-wash);font-size:15px;line-height:22px;color:var(--text-medium)}.status-line strong{color:var(--text-high);font-weight:500}.status-line .dot{position:relative;top:-2px}.more{border-top:1px solid var(--stroke)}.more:last-of-type{border-bottom:1px solid var(--stroke)}.more>summary{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 16px;padding:16px 0;cursor:pointer;list-style:none;transition:background-color .16s var(--ease-out)}.more>summary::-webkit-details-marker{display:none}.more>summary:after{content:"+";grid-column:2;grid-row:1 / span 2;align-self:center;width:32px;height:32px;border:1px solid var(--outline);font-family:var(--mono);font-size:16px;line-height:30px;text-align:center;color:var(--text-medium)}.more[open]>summary:after{content:"−"}.more>summary:hover:after{border-color:var(--text-low);background:var(--bg2)}.more-title{grid-column:1;font-size:19px;line-height:26px;letter-spacing:-.015em;font-weight:500;color:var(--text-high)}.more-line{grid-column:1;font-size:14px;line-height:21px;color:var(--text-low)}.more-body{padding:4px 0 24px}.more-body>:last-child{margin-bottom:0}.footer{padding:22px 0 30px;font-size:13px;line-height:20px;color:var(--text-low)}.footer a{color:var(--text-medium)}.footer [aria-current]{color:var(--text-low)}.footer-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px}.footer ul{display:flex;flex-wrap:wrap;gap:6px 24px;list-style:none;margin:0;padding:0}.footer p{margin:0}.footer-notice{margin-top:14px;font-size:12px;line-height:18px}.footer-notice p{max-width:88ch}@media(min-width:900px){:root{--gutter: 48px}}@media(max-width:899px){.hero-row{grid-template-columns:minmax(0,1fr);min-height:0}.hero-art{display:none}.hero-copy{padding:44px 0}.section{padding:40px 0}h2{font-size:26px;line-height:30px}}@media(max-width:640px){.status{display:none}.theme{margin-left:auto}.facts>div{grid-template-columns:minmax(0,1fr);gap:2px}.btn{white-space:normal;text-align:left}.hero-actions,.hero-actions .btn{width:100%}.table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.table,.table tbody,.table tr,.table th,.table td{display:block}.table tr{padding:12px 0;border-bottom:1px solid var(--stroke)}.table tbody tr:first-child{border-top:1px solid var(--stroke)}.table th,.table td{padding:2px 0;border:0}.table tbody th{white-space:normal;margin-bottom:4px}.table td[data-label]:before{content:attr(data-label);display:block;margin-top:8px;font-size:13px;color:var(--text-low)}.copy{min-width:56px;padding:0 8px}ol.steps>li{padding-left:28px}.code pre{padding:10px 12px}}@media(prefers-reduced-motion:reduce){.pressable,a,.more>summary{transition:none}.pressable:active:not(:disabled){transform:none}}@media(forced-colors:active){.hero:before{display:none}}@media print{.hero:before,.theme,.copy,.hero-art,.skip{display:none!important}}.sim-page{--stage-dot: rgb(255 255 255 / .07);--stage-light: rgb(255 255 255 / .05);--device-shadow: rgb(0 0 0 / .55);--device-contact: rgb(0 0 0 / .7);--ink: #0a0a0a;--app-top: 156px}@media(prefers-color-scheme:light){:root:not([data-theme]) .sim-page{--stage-dot: rgb(9 9 11 / .09);--stage-light: rgb(255 255 255 / .9);--device-shadow: rgb(24 24 27 / .28);--device-contact: rgb(24 24 27 / .45)}}:root[data-theme=light] .sim-page{--stage-dot: rgb(9 9 11 / .09);--stage-light: rgb(255 255 255 / .9);--device-shadow: rgb(24 24 27 / .28);--device-contact: rgb(24 24 27 / .45)}.bar{position:sticky;top:12px;z-index:20;margin:12px 12px 0}.bar-row{display:flex;align-items:center;gap:16px;height:64px;padding:0 12px 0 16px;border:1px solid rgb(255 255 255 / .08);background:var(--ink);color:#fff;box-shadow:0 12px 40px #00000059}.bar .brand{color:#fff;min-height:44px}.bar .xe-mark{width:26px;height:28px;color:#fff}.bar .brand-name{font-size:15px;font-weight:500;letter-spacing:.006em}.brand-dim{color:#ffffff8c;font-weight:400}.bar-end{display:flex;align-items:center;gap:12px;margin-left:auto}.bar .theme{border-color:#ffffff1a}.bar .theme button{color:#fff9}.bar .theme button:hover{background:#ffffff0f;color:#fff}.bar .theme button[aria-pressed=true]{color:#fff;background:#ffffff1a}.bar-cta{display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 18px 0 20px;background:var(--brand);color:#fff;font-size:15px;font-weight:500;letter-spacing:.006em;text-decoration:none;transition:background-color .2s var(--ease-out),transform .16s var(--ease-out)}.bar-cta:hover{background:var(--brand-high)}@media(prefers-contrast:more){.bar-cta{color:var(--on-brand)}}@media(min-width:900px){.bar{top:20px;margin:20px 24px 0}.bar-row{height:72px;padding:0 16px 0 20px}}.sim-main{padding:16px 12px 0}.sim-frame{display:flex;flex-direction:column;max-width:1680px;height:max(680px,calc(100dvh - 104px));margin:0 auto;border:1px solid var(--stroke);background:var(--panel)}.intro{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 32px;padding:14px 20px;border-bottom:1px solid var(--stroke)}.intro-title{margin:0;font-size:20px;line-height:26px;letter-spacing:-.02em;font-weight:400}.intro-status{display:flex;align-items:baseline;gap:10px;margin:0;font-size:13.5px;line-height:20px;color:var(--text-medium)}.intro-status strong{color:var(--text-high);font-weight:500}.intro-status .dot{position:relative;top:-2px}.lede-404{flex-basis:100%;margin:0;color:var(--text-medium)}.sim-host{flex:1;min-height:0}.noscript{margin:0;padding:24px;color:var(--text-medium)}.sim-app{display:grid;grid-template-columns:288px minmax(0,1fr) 372px;height:100%}@media(min-width:900px){.sim-main{padding:20px 24px 0}.sim-frame{height:max(680px,calc(100dvh - 136px))}}.rail{min-height:0;border-right:1px solid var(--stroke);overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--stroke-strong) transparent}.rail[open]{display:flex;flex-direction:column}.rail-summary{display:none}.rail-body{min-height:0;flex:1;overflow-y:auto;padding:8px 0 24px;scrollbar-width:thin;scrollbar-color:var(--stroke-strong) transparent}.flow-group+.flow-group{margin-top:6px}.tag{display:inline-flex;align-items:center;margin:0;padding:2px 10px 2px 8px;border-left:2px solid var(--brand);background:linear-gradient(90deg,#ff690024,#ff690000);font-family:var(--mono);font-size:11px;line-height:16px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--text-medium)}.flow-group>.tag{margin:18px 0 8px 20px}.flows{list-style:none;margin:0;padding:0}.flow{display:flex;flex-direction:column;gap:2px;width:100%;padding:8px 20px 8px 22px;border:0;background:none;text-align:left;cursor:pointer;color:var(--text-medium);-webkit-tap-highlight-color:transparent}.flow:hover{background:var(--tonal);color:var(--text-high)}.flow-title{font-size:14px;line-height:20px}.flow-line{display:none;font-size:12.5px;line-height:17px;color:var(--text-low)}.flow[aria-current=true]{background:var(--tonal-hover);color:var(--text-high);box-shadow:inset 2px 0 0 var(--brand)}.flow[aria-current=true] .flow-line{display:block}.flow.pressable:active{transform:none;background:var(--tonal-hover)}.centre{display:flex;flex-direction:column;min-width:0;min-height:0}.models{display:flex;justify-content:center;gap:2px;margin:16px auto 0;padding:3px;border:1px solid var(--stroke);background:var(--bg)}.model{display:inline-flex;align-items:center;gap:10px;height:42px;padding:0 14px 0 10px;border:0;background:none;color:var(--text-low);font-size:13px;line-height:16px;white-space:nowrap;cursor:pointer;-webkit-tap-highlight-color:transparent}.model:hover{background:var(--tonal);color:var(--text-high)}.model[aria-checked=true]{background:var(--tonal-hover);color:var(--text-high);box-shadow:inset 0 -1.5px 0 var(--brand)}.model:focus-visible{position:relative;z-index:1}.sil{flex:none}.sil-body{fill:none;stroke:currentColor;stroke-width:1;opacity:.7}.sil-screen{fill:currentColor;opacity:.32}.model[aria-checked=true] .sil-screen{fill:var(--brand);opacity:1}.stage{position:relative;flex:1;min-height:0;overflow:hidden;background:radial-gradient(ellipse 50% 46% at 50% 50%,var(--stage-light),transparent 72%),radial-gradient(circle at 1px 1px,var(--stage-dot) 1px,transparent 1.4px) 0 0 / 22px 22px}.sim-chip{position:absolute;top:14px;left:16px;z-index:3;padding:3px 8px;border:1px solid var(--stroke);background:var(--panel);font-family:var(--mono);font-size:11px;line-height:14px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-low)}.slot{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}.stage.bleed .slot{-webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent)}.stage.loading .slot{opacity:0}.slot{transition:opacity .22s var(--ease-out)}.device{position:relative;flex:none;animation:device-in .52s var(--ease-out) both}.stage.bleed .device{transform:translate(calc(50% - var(--screen-centre)))}@keyframes device-in{0%{opacity:0;translate:0 14px}}@keyframes device-fade{0%{opacity:0}}.device:before{content:"";position:absolute;left:6%;right:6%;bottom:-5%;height:16%;z-index:0;background:radial-gradient(closest-side,var(--device-contact),transparent);filter:blur(10px);opacity:.8;pointer-events:none}.kind-buttons:before{bottom:-24%;height:40%}.frame-svg{position:absolute;inset:0;width:100%;height:100%;z-index:1;overflow:visible;pointer-events:none;filter:drop-shadow(0 22px 36px var(--device-shadow)) drop-shadow(0 3px 6px rgb(0 0 0 / .3))}.glass{position:absolute;z-index:2;overflow:hidden;background:#000}.kind-touch .glass{background:#fff;border-radius:2px}.glass:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(160deg,#ffffff12,#fff0 38%)}.kind-touch .glass:after{background:linear-gradient(160deg,#ffffff2e,#fff0 30%,#0000 70%,#00000006)}.lcd{position:relative;overflow:hidden;touch-action:pan-y;user-select:none;-webkit-user-select:none}.page{position:absolute;inset:0;display:block;width:100%;height:100%;will-change:transform;-webkit-user-drag:none;user-select:none}.pixelated .page{image-rendering:pixelated}.page.incoming:not(.shown){visibility:hidden}.hold-bar{position:absolute;left:0;width:0;z-index:2;background:#000;visibility:hidden;pointer-events:none}.hold-bar.on{visibility:visible}.touchable.can-tap{cursor:pointer}.touchable.can-drag{cursor:grab}.touchable.dragging{cursor:grabbing}.touch{position:absolute;z-index:3;width:36px;height:36px;margin:-18px 0 0 -18px;border-radius:50%;border:1.5px solid rgb(0 0 0 / .35);background:#00000014;pointer-events:none;animation:touch-up .46s var(--ease-out) forwards}.touch.held{animation:touch-down .14s var(--ease-out) forwards}@keyframes touch-down{0%{transform:scale(.55);opacity:0}}@keyframes touch-up{0%{transform:scale(1);opacity:1}to{transform:scale(1.5);opacity:0}}.hw-button{position:absolute;z-index:0;padding:0;border:0;background:none;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:none}.hw-cap{position:absolute;inset:0;border-radius:4px 4px 1px 1px;background:linear-gradient(180deg,#55555a,#2c2c30 38%,#1e1e21);box-shadow:inset 0 1px #ffffff38,inset 0 -1px #00000080,0 0 0 .5px #0009;transition:transform 90ms var(--ease-out),filter .16s var(--ease-out)}.hw-button:hover .hw-cap{filter:brightness(1.18)}.hw-button.down .hw-cap{transform:translateY(34%);filter:brightness(.82);transition-duration:40ms}.hw-button:focus-visible{outline:none}.hw-button:focus-visible .hw-cap{outline:2px solid var(--brand);outline-offset:2px}.controls{padding:14px 24px 18px;border-top:1px solid var(--stroke);background:var(--panel)}.steps{display:grid;grid-template-columns:auto minmax(0,1fr) auto auto auto;align-items:center;gap:10px}.steps-bar{display:flex;gap:3px;height:20px;align-items:center}.seg{flex:1;height:5px;background:var(--stroke);cursor:pointer;transform:scaleY(.6);transition:background-color .2s var(--ease-out),transform .2s var(--ease-out)}.seg:hover{background:var(--stroke-strong)}.seg.done{background:var(--text-low)}.seg.now{transform:none;background:var(--brand)}.step-text{margin:0;min-width:7ch;font-family:var(--mono);font-size:12px;line-height:16px;color:var(--text-low);white-space:nowrap}.icon-btn,.text-btn{display:inline-grid;place-items:center;height:32px;border:1px solid var(--stroke);background:none;color:var(--text-medium);cursor:pointer}.icon-btn{width:32px}.text-btn{padding:0 12px;font-size:13px}.icon-btn:hover,.text-btn:hover{border-color:var(--stroke-strong);color:var(--text-high);background:var(--bg2)}.doing{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 20px;margin-top:12px}.hint{text-wrap:pretty;flex:1 1 260px;margin:0;min-height:22px;font-size:15px;line-height:22px;color:var(--text-high)}.hint strong{font-weight:500}.ended .hint{animation:hint-in .26s var(--ease-out)}.hint.nudge{color:var(--caution);animation:hint-in .2s var(--ease-out)}@keyframes hint-in{0%{opacity:.2}}.actions{display:flex;flex-wrap:wrap;gap:8px}.key,.act{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-width:104px;height:44px;padding:0 16px;border:1px solid var(--outline);background:var(--bg2);color:var(--text-high);font-size:14px;font-weight:500;cursor:pointer;user-select:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.key:hover,.act:hover{border-color:var(--text-low)}.key svg{flex:none}.key.next{box-shadow:inset 0 -2px 0 var(--brand)}.key[aria-disabled=true]{opacity:.42}.act.primary{border-color:transparent;background:var(--brand);color:#fff}.act.primary:hover{background:var(--brand-high)}@media(prefers-contrast:more){.act.primary{color:var(--on-brand)}}.keys{margin:10px 0 0;font-size:12.5px;line-height:18px;color:var(--text-low)}@media(hover:none)and (pointer:coarse){.keys{display:none}}@media(pointer:coarse){.bar .bar-cta{height:44px}details.about>summary{display:flex;align-items:center;min-height:44px;padding:0}}.panel{min-height:0;overflow-y:auto;padding:22px 24px 32px;border-left:1px solid var(--stroke);scrollbar-width:thin;scrollbar-color:var(--stroke-strong) transparent}.panel-title{text-wrap:balance;margin:14px 0 10px;font-size:22px;line-height:27px;letter-spacing:-.02em;font-weight:400}.chip.caution{display:inline-block;margin:0 0 6px;padding:2px 8px;border:1px solid color-mix(in srgb,var(--caution) 40%,transparent);background:color-mix(in srgb,var(--caution) 8%,transparent);font-size:12.5px;line-height:18px;color:var(--caution)}.sub{margin:18px 0 8px;font-size:12.5px;line-height:17px;color:var(--text-low)}.lede{margin:0 0 8px;color:var(--text-medium);font-size:14.5px;line-height:22px}.warnings{display:grid;gap:6px}.warning{padding:10px 12px;border-left:2px solid var(--caution);background:color-mix(in srgb,var(--caution) 6%,transparent);transition:background-color .22s var(--ease-out)}.warning.on-screen{background:color-mix(in srgb,var(--caution) 14%,transparent)}.warning-title{margin:0 0 4px;font-size:14px;line-height:19px;font-weight:500;color:var(--text-high)}.warning-text{margin:0;font-size:13px;line-height:19px;color:var(--text-medium)}.fields{margin:18px 0 0;border-bottom:1px solid var(--stroke)}.field{padding:9px 10px 10px 12px;border-top:1px solid var(--stroke);transition:background-color .22s var(--ease-out),box-shadow .22s var(--ease-out)}.field.on-screen{background:var(--brand-wash);box-shadow:inset 2px 0 0 var(--brand)}.field dt{font-size:12px;line-height:16px;color:var(--text-low)}.field dd{margin:3px 0 0;font-family:var(--mono);font-size:13px;line-height:19px;color:var(--text-high);overflow-wrap:anywhere;white-space:pre-line}.finish{display:grid;gap:2px;margin:12px 0 0;padding-left:12px;font-size:14px;line-height:20px;color:var(--text-high)}.finish-label{font-size:12px;color:var(--text-low)}.panel .tag+.panel-title{margin-top:14px}.panel-h{margin:28px 0 10px}.panel-h.tag{display:flex;width:fit-content}.checks{list-style:none;margin:0;padding:0;counter-reset:check}.checks li{position:relative;counter-increment:check;padding:0 0 10px 26px;font-size:14px;line-height:20px;color:var(--text-medium)}.checks li:before{content:counter(check);position:absolute;left:0;top:1px;font-family:var(--mono);font-size:12px;color:var(--brand-text)}.refusals{list-style:none;margin:0;padding:0;border-top:1px solid var(--stroke)}.refusals li{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid var(--stroke);font-size:13px;line-height:18px;color:var(--text-medium)}.refusals code{flex:none;color:var(--text-low)}.about{margin-top:22px;border-top:1px solid var(--stroke)}.about summary{padding:12px 0 4px;font-size:13px;color:var(--text-low);cursor:pointer}.about summary:hover{color:var(--text-high)}.source p{margin:8px 0 0;font-size:12.5px;line-height:18px;color:var(--text-low);overflow-wrap:anywhere}.source .mono{font-family:var(--mono);font-size:11.5px}.sim-footer{max-width:1728px;margin:0 auto;padding:22px 24px 32px}@media(min-width:900px){.sim-footer{padding:22px 48px 40px}}@media(max-width:1279px){.sim-app{grid-template-columns:260px minmax(0,1fr) 320px}.model{padding:0 10px 0 8px;gap:8px}}@media(max-width:1099px){.sim-frame{height:auto}.sim-app{display:flex;flex-direction:column;height:auto}.centre{order:1}.rail{order:2;border-right:0;border-top:1px solid var(--stroke)}.panel{order:3;border-left:0;border-top:1px solid var(--stroke);overflow:visible}.rail-summary{display:flex;align-items:center;gap:12px;min-height:56px;padding:0 20px;cursor:pointer;list-style:none}.rail-summary::-webkit-details-marker{display:none}.rail-summary:after{content:"+";width:32px;height:32px;border:1px solid var(--outline);font-family:var(--mono);line-height:30px;text-align:center;color:var(--text-medium)}.rail[open] .rail-summary:after{content:"−"}.rail-label{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-low)}.rail-current{flex:1;min-width:0;font-size:15px;color:var(--text-high)}.rail-count{font-family:var(--mono);font-size:12px;color:var(--text-low)}.rail-body{overflow:visible;padding-top:0}.stage{flex:none;height:min(74vh,700px)}.sim-app[data-kind=buttons] .stage{height:320px}}@media(max-width:640px){.bar-row{gap:10px}.bar .theme{display:none}.bar-cta{height:40px;padding:0 14px;font-size:14px}.bar .brand-name{font-size:14px}.sim-main{padding:12px 0 0}.sim-frame{border-left:0;border-right:0}.intro{padding:14px 16px}.models{width:calc(100% - 24px);margin-top:12px}.model{flex:1 1 0;flex-direction:column;justify-content:center;gap:4px;height:62px;padding:4px 2px;font-size:11px;line-height:13px;white-space:normal;text-align:center}.stage{height:min(64vh,560px)}.sim-app[data-kind=buttons] .stage{height:250px}.controls{padding:12px 16px 16px}.steps{grid-template-columns:auto minmax(0,1fr) auto auto;gap:8px}.steps .text-btn{display:none}.key,.act{flex:1 1 0;min-width:0;padding:0 10px}.ended .act.primary{flex-basis:100%}.panel{padding:20px 16px 28px}.sim-footer{padding:0 16px 28px}}@media(hover:none){.keys{display:none}}@media(pointer:coarse){.flow{min-height:44px;justify-content:center}.icon-btn{width:44px;height:44px}.text-btn,.steps-bar{height:44px}}@media(prefers-reduced-motion:reduce){.device{animation:device-fade .2s ease both}.hw-cap,.seg,.field,.warning,.slot,.bar-cta{transition:none}.touch{animation-duration:1ms}}@media(forced-colors:active){.frame-svg{filter:none}.seg.now{background:Highlight}}