@font-face{font-family:Roboto;src:url('/roboto-0.ttf') format('truetype');font-weight:400;font-display:swap}@font-face{font-family:Roboto;src:url('/roboto-1.ttf') format('truetype');font-weight:500;font-display:swap}@font-face{font-family:Roboto;src:url('/roboto-2.ttf') format('truetype');font-weight:700;font-display:swap}
:root{--ink:#181a19;--paper:#fff;--surface:#edf0ed;--muted:#505650;--accent:#f29400;--dark:#171b19;--pad:32px;--max:1376px;--body:17px;--small:14px;--title:clamp(48px,6.5vw,92px);--heading:32px;--subhead:22px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--paper);color:var(--ink);font:var(--body)/1.55 Roboto,Arial,sans-serif}button,input{font:inherit}a{color:inherit;text-underline-offset:5px;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}button{cursor:pointer;border:0;color:inherit}button,a{-webkit-tap-highlight-color:transparent}a,button{transition:transform .2s,opacity .2s}button:active,.button:active{transform:translateY(2px)}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img{display:block;max-width:100%;height:auto}p{margin:0 0 22px}h1,h2,h3{margin:0;font-weight:500;line-height:1.1;letter-spacing:-.035em;text-wrap:balance}h1{font-size:var(--title)}h2{font-size:var(--heading)}h3{font-size:var(--subhead)}figure{margin:0}main{max-width:var(--max);margin:auto}section{scroll-margin-top:28px}small{font-size:var(--small)}.skip{position:absolute;left:var(--pad);top:-100px;background:var(--paper);padding:12px;z-index:5}.skip:focus{top:8px}
.site-header{max-width:var(--max);margin:auto;padding:22px var(--pad);display:flex;align-items:center;gap:32px;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;font-size:26px;font-weight:500;letter-spacing:-1px}.brand img{width:48px;height:48px;flex-shrink:0}.site-header nav{display:flex;gap:28px;margin-left:auto;align-items:center}.site-header nav a{font-size:16px;text-decoration:none;padding:9px 0}.site-header nav [aria-current=page]{text-decoration:underline;text-decoration-thickness:2px}.button{display:inline-flex;justify-content:center;align-items:center;min-height:48px;min-width:110px;width:max-content;max-width:100%;padding:12px 22px;background:var(--accent);color:var(--ink);text-decoration:none;font-weight:500;font-size:16px;border:0;border-radius:0}.button:hover{transform:translateY(-2px)}.product-heading{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:55px var(--pad) 48px}.product-heading h1{font-size:clamp(60px,8vw,112px);letter-spacing:-.06em}.product-heading p{max-width:42ch;font-size:22px;line-height:1.45;margin-bottom:16px}.product-heading a{font-size:16px}
.screen-browser{margin:0 var(--pad);display:grid;grid-template-columns:260px 1fr;background:var(--surface);align-items:start}.browser-controls{padding:28px 22px;position:sticky;top:0}.browser-heading{margin-bottom:22px}.browser-heading h2{font-size:var(--subhead);margin-bottom:5px;letter-spacing:-.02em}.browser-heading span{font-size:var(--small);color:var(--muted)}.screen-tabs{display:flex;flex-direction:column;align-items:stretch;gap:2px}.screen-tabs button{padding:10px 13px;min-height:44px;font-size:16px;background:transparent;text-align:left}.screen-tabs button:hover{background:#dfe4df}.screen-tabs [aria-selected=true]{background:var(--ink);color:var(--paper)}.screen-disclosure{font-size:var(--small);color:var(--muted);margin:24px 0 12px;max-width:24ch}.browser-controls>a{font-size:var(--small)}.screen-panel{min-width:0;padding:30px 26px 20px;background:#e3e7e2}.screen-stage{display:flex;gap:26px;justify-content:center;align-items:flex-start;overflow:hidden}.selected-screen{width:52%;max-width:390px;flex-shrink:0}.companion-screen{width:40%;max-width:300px;flex-shrink:0;margin-top:62px}.screen-description{display:flex;justify-content:space-between;gap:24px;margin-top:23px;align-items:center;min-height:52px}.screen-caption{font-size:16px;max-width:36ch;margin:0}.screen-arrows{display:flex;gap:8px}.screen-arrows button{padding:10px 14px;background:var(--paper);font-size:var(--small);min-height:44px}.screen-browser noscript{padding:25px;grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.usage{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding:130px var(--pad)}.usage-intro{max-width:430px}.usage-intro h2{margin-bottom:24px}.usage-intro p{font-size:22px;line-height:1.5}.usage-body article{margin-bottom:38px;max-width:620px}.usage-body article:last-child{margin-bottom:0}.usage-body h3{margin-bottom:14px}.usage-body p{margin-bottom:16px}.contact-format{background:var(--surface);padding:22px;margin-top:22px}.contact-format label{display:block;font-size:16px;margin-bottom:12px}.contact-format input{width:100%;min-width:0;padding:12px;background:var(--paper);border:0;border-radius:0;color:var(--ink);font-size:28px;font-variant-numeric:tabular-nums;letter-spacing:.04em}.contact-format output{display:block;color:var(--muted);font-size:var(--small);margin-top:12px}
.screen-archive{background:var(--dark);color:var(--paper);padding:42px var(--pad) 46px;overflow:hidden}.screen-archive h2{margin-bottom:28px}.screen-strip{display:flex;gap:24px;overflow-x:auto;padding-bottom:20px;scroll-snap-type:x proximity;scrollbar-color:#9da79d var(--dark)}.screen-strip figure{flex:0 0 230px;scroll-snap-align:start}.screen-strip img{width:230px;max-width:none}.screen-strip figcaption{margin-top:15px;font-size:16px}.reference-links{padding:120px var(--pad);display:grid;grid-template-columns:1fr 1fr;gap:80px}.reference-links>div{display:grid;gap:28px}.reference-links a{display:block;text-decoration:none;max-width:48ch}.reference-links strong{display:block;font-size:var(--subhead);font-weight:500;text-decoration:underline;text-underline-offset:5px;margin-bottom:8px}.reference-links span{display:block}.site-footer{max-width:var(--max);margin:auto;display:flex;justify-content:space-between;gap:30px;align-items:center;padding:34px var(--pad) 46px}.site-footer nav{display:flex;flex-wrap:wrap;gap:24px;font-size:16px}.site-footer nav a{text-decoration:none}
.document-layout{display:grid;grid-template-columns:4fr 7fr;gap:9%;padding:70px var(--pad) 120px;align-items:start}.document-layout aside{position:sticky;top:32px}.document-layout h1{font-size:clamp(44px,4.8vw,64px);margin-bottom:26px;max-width:12ch}.document-layout aside>p{max-width:30ch;font-size:19px}.contents{display:flex;flex-direction:column;align-items:start;gap:14px;margin-top:38px}.contents a{text-decoration:none;font-size:16px}.contents a:hover{text-decoration:underline}.document-body{min-width:0}.document-section{margin-bottom:64px;max-width:680px}.document-section:last-child{margin-bottom:0}.document-section h2{margin-bottom:24px}.document-section p{max-width:60ch}.document-section .contact-format{max-width:470px}.crypto-demo{background:var(--surface);padding:28px;min-width:0;margin:28px 0}.crypto-demo label{display:block;font-size:16px;margin-bottom:10px}.crypto-demo input{display:block;width:100%;border:0;border-radius:0;background:var(--paper);padding:12px;color:var(--ink);font-size:16px}.crypto-demo .button{margin:18px 0}.crypto-demo pre,.envelope{background:var(--dark);color:var(--paper);font:14px/1.7 monospace;padding:22px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;max-height:230px}.crypto-demo output{display:block;overflow-wrap:anywhere;background:var(--paper);padding:12px;margin-bottom:20px}.crypto-demo #demo-count,.crypto-demo #demo-note{font-size:var(--small);color:var(--muted)}.crypto-demo #demo-note{margin:20px 0 0}.questions details{padding:0 0 24px}.questions summary{cursor:pointer;font-size:19px;line-height:1.4;font-weight:500;padding:7px 0}.questions details p{margin:14px 0 0}.installation .button{margin:10px 0 24px}.installation aside .install-note{font-size:var(--small);max-width:35ch}.installation aside>a{font-size:16px}.os-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:35px}.os-tabs button{background:var(--surface);padding:12px 18px;font-size:16px;min-height:48px}.os-tabs [aria-selected=true]{background:var(--ink);color:var(--paper)}.os-panel h2{margin-bottom:24px}.os-panel ol{padding-left:24px;max-width:57ch}.os-panel li{padding-left:8px;margin-bottom:18px}.installation-video{display:grid;grid-template-columns:minmax(0,250px) 1fr;align-items:end;gap:24px;margin:48px 0}.installation-video video{display:block;width:100%;background:#000;max-height:450px}.installation-video p{font-size:var(--small);color:var(--muted);max-width:22ch;margin:0}.installation .questions{margin-top:45px}
.entered{animation:enter .6s ease-out both;animation-delay:var(--delay,0ms)}.product-heading h1{animation:enter .65s ease-out both}.selected-screen{animation:screen-enter .8s ease-out both}.companion-screen{animation:screen-enter 1s ease-out both}@keyframes enter{from{opacity:.35;transform:translateY(18px)}to{opacity:1;transform:none}}@keyframes screen-enter{from{opacity:.4;transform:translateY(28px)}to{opacity:1;transform:none}}
@media(min-width:1600px){.screen-browser{grid-template-columns:290px 1fr}}
@media(max-width:1000px){:root{--pad:24px;--heading:30px}.site-header{gap:22px}.site-header nav{gap:20px}.brand{font-size:24px}.brand img{width:42px;height:42px}.product-heading{gap:28px}.product-heading p{font-size:20px}.screen-browser{grid-template-columns:220px 1fr}.screen-panel{padding:24px 20px}.companion-screen{display:none}.selected-screen{width:100%;max-width:340px}.screen-description{display:block}.screen-arrows{margin-top:15px}.usage,.reference-links{gap:50px}.document-layout{grid-template-columns:3fr 5fr;gap:6%}.document-layout h1{font-size:46px}.installation-video{display:block}.installation-video video{width:250px;max-width:100%}.installation-video p{max-width:45ch;margin-top:18px}.site-footer{align-items:start}.site-footer nav{gap:17px;max-width:340px}}
@media(max-width:700px){:root{--pad:20px;--body:16px;--heading:28px;--subhead:21px}.site-header{padding-top:16px;padding-bottom:16px;flex-wrap:wrap;gap:18px}.site-header .brand{font-size:25px}.brand img{width:42px;height:42px}.site-header nav{order:3;width:100%;justify-content:space-between;gap:12px;margin:0}.site-header nav a{font-size:15px;padding:3px 0}.site-header>.button{margin-left:auto;min-width:96px;min-height:44px;padding:10px 16px}.product-heading{display:block;padding-top:28px;padding-bottom:32px}.product-heading h1{font-size:62px;margin-bottom:20px}.product-heading p{font-size:19px;max-width:32ch}.product-heading>div>a{font-size:16px}.screen-browser{display:flex;flex-direction:column;margin:0}.browser-controls{position:static;width:100%;padding:20px var(--pad) 0}.browser-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.browser-heading h2{margin:0}.screen-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}.screen-tabs button{font-size:var(--small);min-height:42px;padding:8px 12px}.screen-disclosure{max-width:none;margin:18px 0 8px}.browser-controls>a{display:inline-block;margin-bottom:20px}.screen-panel{padding:24px var(--pad) 20px;width:100%}.selected-screen{max-width:320px}.screen-description{display:flex;flex-direction:column;align-items:stretch;gap:12px;margin-top:20px}.screen-caption{font-size:16px;max-width:none}.screen-arrows{margin:0;justify-content:space-between}.screen-arrows button{min-width:90px}.usage{display:block;padding:72px var(--pad)}.usage-intro{max-width:none;margin-bottom:42px}.usage-intro h2{margin-bottom:20px}.usage-intro p{font-size:19px}.usage-body article{margin-bottom:32px}.contact-format{padding:18px}.contact-format input{font-size:28px}.screen-archive{padding:32px var(--pad) 28px}.screen-archive h2{max-width:22ch}.screen-strip{gap:18px;margin-right:calc(-1*var(--pad));padding-right:var(--pad)}.screen-strip figure{flex-basis:240px}.screen-strip img{width:240px}.reference-links{display:block;padding:70px var(--pad)}.reference-links h2{margin-bottom:30px}.reference-links>div{gap:25px}.site-footer{display:block;padding-top:28px}.site-footer nav{margin-top:25px;max-width:none;gap:18px 22px}.document-layout{display:block;padding:35px var(--pad) 65px}.document-layout aside{position:static}.document-layout h1{font-size:46px;max-width:none;margin-bottom:22px}.document-layout aside>p{font-size:19px;max-width:35ch}.contents{display:grid;grid-template-columns:1fr 1fr;gap:15px 20px;margin:30px 0 48px}.contents a{font-size:var(--small)}.document-section{margin-bottom:45px}.document-section h2{margin-bottom:20px}.crypto-demo{padding:20px}.crypto-demo pre,.envelope{padding:16px;font-size:13px}.installation aside{margin-bottom:38px}.installation .button{margin:0 0 18px}.installation aside .install-note{margin-bottom:18px}.os-tabs{gap:5px;margin-bottom:28px}.os-tabs button{font-size:var(--small);padding:12px;flex:1}.installation-video{display:grid;grid-template-columns:minmax(0,220px) 1fr;gap:18px;margin:35px 0}.installation-video p{margin:0}.screen-browser noscript{display:block}.screen-browser noscript figure{margin-bottom:24px}}
@media(max-width:400px){.installation-video{display:block}.installation-video video{width:240px}.installation-video p{margin-top:16px}.product-heading h1{font-size:57px}.document-layout h1{font-size:42px}.contents{gap:14px}.screen-tabs button{padding-left:9px;padding-right:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

.mobile-screen-select{display:none}@media(max-width:700px){.mobile-screen-select{display:block;font-size:14px}.mobile-screen-select select{display:block;width:100%;margin-top:8px;min-height:48px;padding:10px 12px;font:16px Roboto,Arial,sans-serif;background:var(--paper);color:var(--ink);border:0;border-radius:0}.mobile-screen-select select:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.screen-tabs{display:none}.screen-disclosure{margin-top:13px}.browser-controls>a{margin-bottom:16px}}

.reference-links{align-items:start}.usage-screens{display:flex;gap:20px;margin-top:38px;align-items:start}.usage-screens img{width:calc(50% - 10px)}@media(max-width:700px){.usage-screens{display:none}}

.product-heading{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}.product-heading h1{font-size:clamp(38px,4.25vw,68px);line-height:1.04;letter-spacing:-.045em}.product-heading h1 span{display:block;white-space:nowrap}.site-footer nav{flex-wrap:wrap}.document-body li{margin-bottom:12px}@media(max-width:700px){.product-heading h1{font-size:clamp(30px,8.6vw,54px)}}