@font-face{font-family:"Plex Sans";font-weight:400;font-style:normal;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Plex Sans";font-weight:400;font-style:normal;font-display:swap;src:url(../fonts/ibm-plex-sans-greek-400-normal.woff2) format("woff2");unicode-range:U+0370-03FF}
@font-face{font-family:"Plex Sans";font-weight:600;font-style:normal;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Plex Sans";font-weight:600;font-style:normal;font-display:swap;src:url(../fonts/ibm-plex-sans-greek-600-normal.woff2) format("woff2");unicode-range:U+0370-03FF}
@font-face{font-family:"Plex Mono";font-weight:400;font-style:normal;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Plex Mono";font-weight:500;font-style:normal;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2")}

:root{
  --ground:#1b2017;--surface:#232a1e;--surface-2:#2b3325;--line:#3c4632;
  --text:#e6e3d2;--muted:#a9ad94;--khaki:#c2b66b;--khaki-ink:#1b2017;--signal:#ff6b1a;
  --ok:#8db36b;--warn:#e0a94a;--bad:#e07a60;
  --sans:"Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"Plex Mono",ui-monospace,Consolas,monospace;
  --gutter:clamp(16px,4vw,40px);--max:1180px;--header-h:60px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px);-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--ground);color:var(--text);font:400 1.0625rem/1.65 var(--sans);text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--khaki);text-underline-offset:3px}
a:hover{color:#ddd28a}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:2px}
h1,h2,h3{font-weight:600;line-height:1.12;letter-spacing:-.015em;margin:0 0 .5em;text-wrap:balance}
h1{font-size:clamp(2.2rem,5.2vw,4rem);letter-spacing:-.03em}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem)}
h3{font-size:1.25rem;letter-spacing:-.005em}
p{margin:0 0 1em;max-width:68ch}
ul,ol{padding-left:1.2em;margin:0 0 1em;max-width:68ch}
li{margin-bottom:.4em}
code,.mono{font-family:var(--mono);font-size:.92em}
code{background:var(--surface-2);padding:.1em .4em;border-radius:3px}
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.skip{position:absolute;left:-999px;top:8px;background:var(--khaki);color:var(--khaki-ink);padding:8px 14px;z-index:100}
.skip:focus{left:8px}
.lede{font-size:clamp(1.1rem,2vw,1.3rem);color:var(--muted);max-width:56ch}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(27,32,23,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:20px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:600;font-size:1.15rem;letter-spacing:.01em}
.brand svg{width:30px;height:30px;flex:none}
.site-nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.site-nav a{color:var(--muted);text-decoration:none;padding:8px 12px;border-radius:4px;font-size:.98rem}
.site-nav a:hover{color:var(--text);background:var(--surface)}
.site-nav a[aria-current="page"]{color:var(--text);box-shadow:inset 0 -2px 0 var(--khaki)}
.lang{display:flex;border:1px solid var(--line);border-radius:4px;overflow:hidden;margin-left:8px;flex:none}
.lang a{padding:6px 10px;font:500 .85rem var(--mono);color:var(--muted);text-decoration:none;letter-spacing:.04em}
.lang a[aria-current="true"]{background:var(--khaki);color:var(--khaki-ink)}
.lang a:not([aria-current="true"]):hover{background:var(--surface);color:var(--text)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--text);border-radius:4px;padding:6px 12px;font:inherit;font-size:.95rem;cursor:pointer}
@media (max-width:1080px){
  .nav-toggle{display:block}
  .site-header .lang{margin-left:0}
  .site-nav{position:absolute;left:0;right:0;top:var(--header-h);flex-direction:column;align-items:stretch;background:var(--ground);border-bottom:1px solid var(--line);padding:8px var(--gutter) 14px;display:none;margin-left:0}
  .site-nav.open{display:flex}
  .site-nav a{padding:12px 8px;font-size:1.05rem}
  .site-nav a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--khaki);padding-left:14px}
}

/* buttons */
.btn{display:inline-block;padding:13px 22px;border-radius:4px;font-weight:600;text-decoration:none;border:1px solid var(--khaki);font-size:1rem;line-height:1.2}
.btn-primary{background:var(--khaki);color:var(--khaki-ink)}
.btn-primary:hover{background:#d6cb82;color:var(--khaki-ink)}
.btn-ghost{color:var(--khaki)}
.btn-ghost:hover{background:var(--surface);color:#ddd28a}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);isolation:isolate}
.hero-map{position:absolute;inset:0;z-index:-2;background:url(../img/contours.svg) center/cover no-repeat}
.hero-plot{position:absolute;inset:0;z-index:-1;pointer-events:none}
.hero-plot .ref,.hero-plot .tgt{position:absolute;left:0;top:0;width:0;height:0}
.hero-plot .ref::before{content:"";position:absolute;left:-6px;top:-6px;width:12px;height:12px;border:2px solid var(--khaki);transform:rotate(45deg)}
.hero-plot .ref span,.hero-plot .tgt span{position:absolute;left:12px;top:-8px;font:500 .8rem var(--mono);color:var(--khaki);white-space:nowrap}
.hero-plot svg{position:absolute;inset:0;width:100%;height:100%}
.hero-plot line{stroke:var(--signal);stroke-width:1.5;stroke-opacity:.6}
.hero-plot .tgt::before,.hero-plot .tgt::after{content:"";position:absolute;background:var(--signal)}
.hero-plot .tgt::before{left:-14px;top:-1px;width:28px;height:2px}
.hero-plot .tgt::after{top:-14px;left:-1px;height:28px;width:2px}
.hero-plot .tgt span{color:var(--signal);left:18px;top:10px;background:rgba(27,32,23,.8);padding:2px 6px;border-radius:3px}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(24px,5vw,64px);align-items:center;padding-block:clamp(40px,8vw,96px)}
.hero h1{margin-bottom:.35em}
.hero .phone{justify-self:center;width:min(300px,100%)}
@media (max-width:860px){.hero-inner{grid-template-columns:1fr}.hero .phone{width:min(240px,70%);justify-self:start}}

/* phone frame */
.phone{margin:0}
.phone .bezel{border:2px solid #4a5640;border-radius:22px;overflow:hidden;background:#000;aspect-ratio:9/20}
.phone img{width:100%;height:100%;object-fit:cover}
.phone figcaption{font-size:.82rem;color:var(--muted);margin-top:8px;max-width:none}

/* graticule rule */
.tick-rule{height:9px;border:0;margin:0;background:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 12px) top/100% 9px no-repeat,linear-gradient(var(--line),var(--line)) top/100% 1px no-repeat}

/* sections */
.section{padding-block:clamp(48px,8vw,96px)}
.section-tight{padding-block:clamp(32px,5vw,56px)}
.section.alt{background:var(--surface)}
.section-head{max-width:62ch;margin-bottom:clamp(28px,4vw,48px)}
.section-head p{color:var(--muted)}

/* feature rows */
.feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,6vw,80px);align-items:center;padding-block:clamp(28px,5vw,56px)}
.feature + .feature{border-top:1px solid var(--line)}
.feature:nth-child(even) .feature-shots{order:-1}
.feature-shots{display:flex;gap:16px;justify-content:center}
.feature-shots .phone{width:min(210px,44%)}
.feature-shots .phone:nth-child(2){margin-top:36px}.feature-shots.four{flex-wrap:wrap;max-width:460px;margin-inline:auto}.feature-shots.four .phone{width:calc(50% - 8px)}.feature-shots.four .phone:nth-child(n+3){margin-top:0}.feature-shots.four .phone:nth-child(4){margin-top:36px}
.feature-shots.wide{flex-wrap:wrap}.feature-shots.wide .shot{flex:0 0 100%;margin:8px 0 0}.feature-shots.wide .shot figcaption{text-align:center}
.feature h3{font-size:clamp(1.4rem,2.6vw,1.9rem)}
.feature ul{color:var(--muted);padding-left:1.1em}
.feature li strong{color:var(--text);font-weight:600}
@media (max-width:860px){.feature{grid-template-columns:1fr}.feature:nth-child(even) .feature-shots{order:0}}

/* steps */
ol.steps{list-style:none;counter-reset:s;padding:0;margin:0;max-width:none}
ol.steps>li{counter-increment:s;position:relative;padding:0 0 28px 56px;margin:0;border-left:1px solid var(--line);margin-left:16px}
ol.steps>li:last-child{border-left-color:transparent;padding-bottom:0}
ol.steps>li::before{content:counter(s);position:absolute;left:-17px;top:-2px;width:33px;height:33px;border-radius:50%;background:var(--ground);border:1px solid var(--khaki);color:var(--khaki);font:500 .95rem/31px var(--mono);text-align:center}
ol.steps h3{font-size:1.15rem;margin-bottom:.3em}
ol.steps p{color:var(--muted);margin-bottom:.5em}
ol.steps p strong{color:var(--text)}

/* callouts */
.note{border-left:3px solid var(--khaki);background:var(--surface);padding:14px 18px;border-radius:0 4px 4px 0;margin:24px 0;max-width:68ch}
.note.warn{border-left-color:var(--warn)}
.note.stop{border-left-color:var(--bad)}
.note p:last-child{margin-bottom:0}
.note strong{color:var(--text)}
.section.alt .note{background:var(--ground)}

/* tables */
.table-scroll{overflow-x:auto;margin:0 0 1.5em;border:1px solid var(--line);border-radius:4px}
table{border-collapse:collapse;width:100%;font-size:.98rem}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
th{font-weight:600;background:var(--surface);color:var(--text);white-space:nowrap}
td{color:var(--muted)}
td:first-child{color:var(--text)}
.tag{display:inline-block;font:500 .8rem var(--mono);padding:2px 8px;border-radius:3px;border:1px solid currentColor;white-space:nowrap}
.tag.ok{color:var(--ok)}.tag.warn{color:var(--warn)}.tag.off{color:var(--bad)}

/* docs layout */
.page-head{padding-block:clamp(40px,7vw,80px) clamp(24px,4vw,40px);border-bottom:1px solid var(--line);position:relative;overflow:hidden;isolation:isolate}
.page-head::before{content:"";position:absolute;inset:0;z-index:-1;background:url(../img/contours.svg) 30% 40%/cover;opacity:.55}
.page-head h1{font-size:clamp(2rem,5vw,3.4rem);max-width:20ch}
.docs{display:grid;grid-template-columns:220px minmax(0,1fr);gap:clamp(24px,5vw,64px);padding-block:clamp(32px,5vw,64px)}
.toc{position:sticky;top:calc(var(--header-h) + 24px);align-self:start;font-size:.95rem}
.toc p{font-weight:600;margin-bottom:.6em;color:var(--text)}
.toc ul{list-style:none;padding:0;margin:0;border-left:1px solid var(--line)}
.toc li{margin:0}
.toc a{display:block;padding:6px 14px;color:var(--muted);text-decoration:none;margin-left:-1px;border-left:2px solid transparent}
.toc a:hover{color:var(--text);border-left-color:var(--khaki)}
.doc-body section{margin-bottom:clamp(40px,6vw,72px)}
.doc-body h2{font-size:clamp(1.5rem,3vw,2.1rem);padding-top:8px}
@media (max-width:900px){.docs{grid-template-columns:minmax(0,1fr)}.toc{position:static;border-bottom:1px solid var(--line);padding-bottom:16px}.toc ul{display:flex;flex-wrap:wrap;gap:4px 16px;border-left:0}.toc a{padding:4px 0;border-left:0;margin:0}}

/* diagrams */
.diagram{margin:28px 0;border:1px solid var(--line);border-radius:4px;background:var(--surface);padding:16px;overflow-x:auto}
.diagram svg{display:block;min-width:640px;width:100%;height:auto}
.diagram figcaption{font-size:.88rem;color:var(--muted);margin-top:12px;max-width:none;min-width:0}
.dg-box{fill:var(--ground);stroke:var(--khaki);stroke-width:1.2}
.dg-box.hl{stroke:var(--signal)}
.dg-dash{stroke-dasharray:5 4}
.dg-line{stroke:var(--muted);stroke-width:1.5;fill:none}
.dg-t{fill:var(--text);font:600 14px var(--sans)}
.dg-s{fill:var(--muted);font:400 12px var(--mono)}

/* cards for hardware parts */
.parts{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0;border:1px solid var(--line);border-radius:4px;margin:24px 0;overflow:hidden}
.parts>div{padding:20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);margin:-0px -1px -1px 0}
.parts h3{font-size:1.05rem;margin-bottom:.3em}
.parts p{color:var(--muted);font-size:.96rem;margin:0}
.parts .mono{color:var(--khaki)}

/* faq */
details{border-bottom:1px solid var(--line);max-width:760px}
details:first-of-type{border-top:1px solid var(--line)}
summary{cursor:pointer;padding:18px 36px 18px 0;font-weight:600;font-size:1.08rem;list-style:none;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:4px;top:14px;font:400 1.5rem var(--mono);color:var(--khaki)}
details[open] summary::after{content:"\2212"}
details>div{padding:0 0 18px;color:var(--muted)}
details>div p:last-child{margin-bottom:0}

/* two column text */
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:clamp(20px,4vw,48px)}
.cols.two{grid-template-columns:repeat(2,minmax(0,1fr))}@media (max-width:700px){.cols.two{grid-template-columns:1fr}}
.cols h3{margin-bottom:.35em}
.list-2{columns:2 320px;column-gap:clamp(24px,5vw,64px);color:var(--muted);padding-left:1.1em;margin-top:12px}.list-2 li{break-inside:avoid;margin-bottom:.6em}.list-2 strong{color:var(--text);font-weight:600}
.cols p{color:var(--muted)}

/* cta */
.cta{background:var(--surface);border-block:1px solid var(--line)}
.cta .wrap{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;padding-block:clamp(36px,6vw,64px)}
.cta h2{margin:0 0 .25em;font-size:clamp(1.5rem,3vw,2.1rem)}
.cta p{margin:0;color:var(--muted)}

/* footer */
.site-footer{padding-block:40px 56px;color:var(--muted);font-size:.93rem}
.site-footer .wrap{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,1fr));gap:32px}
.site-footer h3{font-size:.98rem;color:var(--text);margin-bottom:.6em}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:.35em}
.site-footer a{color:var(--muted)}
.site-footer a:hover{color:var(--text)}
.disclaimer{grid-column:1/-1;border-top:1px solid var(--line);padding-top:20px;font-size:.86rem;max-width:90ch}
@media (max-width:720px){.site-footer .wrap{grid-template-columns:1fr}}

pre{background:#12150e;border:1px solid var(--line);border-radius:4px;padding:14px 16px;overflow-x:auto;font:400 .88rem/1.55 var(--mono);margin:12px 0;max-width:100%}
pre code{background:none;padding:0;font-size:inherit}
ol.steps li ol{max-width:none;margin:.4em 0 .8em}
ol.steps li ol li{padding:0;margin:0 0 .3em;border:0;color:var(--muted)}
ol.steps li ol li::before{content:none}
.radio-photos{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;margin:0 0 24px}
.radio-photos figure{margin:0}
.radio-photos img{border:1px solid var(--line);border-radius:4px;max-width:100%;height:auto}
.radio-photos figcaption{font-size:.85rem;color:var(--muted);margin-top:6px}
.radio-photos img{max-height:230px;width:auto}

.part-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin:16px 0 8px;max-width:none}
.part{border:1px solid var(--line);border-radius:4px;overflow:hidden;display:flex;flex-direction:column;background:var(--surface)}
.part img{width:100%;aspect-ratio:5/4;object-fit:cover}
.part .b{padding:14px 16px;display:flex;flex-direction:column;gap:6px;flex:1}
.part h3{font-size:1.05rem;margin:0}
.part p{font-size:.93rem;color:var(--muted);margin:0;flex:1}
.part .mono{color:var(--khaki);font-size:.82rem}
.part .price{font:500 .95rem var(--mono);color:var(--text)}
.total{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;border:1px solid var(--khaki);border-radius:4px;padding:14px 18px;margin:16px 0 0;max-width:none}
.total strong{font-size:1.3rem;color:var(--khaki)}
.build-photos figure{flex:1 1 220px}
.build-photos img{max-height:none;width:100%;object-fit:cover;aspect-ratio:3/4}
.build-photos figure:first-child{flex:1.4 1 280px}
.stl img{max-height:none;width:100%;height:auto}
.stl figure{flex:1 1 280px}
details.code{max-width:none;border:1px solid var(--line);border-radius:4px;background:var(--surface)}
details.code:first-of-type{border-top:1px solid var(--line)}
details.code summary{padding:14px 44px 14px 16px;font-size:1rem}
details.code summary::after{top:10px;right:14px}
details.code .code-bar{display:flex;justify-content:flex-end;padding:0 12px 8px}
details.code pre{margin:0;border:0;border-top:1px solid var(--line);border-radius:0;max-height:560px}
.copy-btn{font:500 .85rem var(--mono);background:var(--ground);color:var(--khaki);border:1px solid var(--line);border-radius:4px;padding:6px 12px;cursor:pointer}
.copy-btn:hover{border-color:var(--khaki)}

/* screenshots of the Windows app */
.shot{margin:24px 0}
.shot img{width:100%;height:auto;border:1px solid var(--line);border-radius:6px;display:block}
.shot figcaption{color:var(--muted);font-size:.875rem;margin-top:8px}

/* security page */
.sec-art{margin:0 0 36px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.sec-art h3{display:flex;gap:12px;align-items:baseline;font-size:1.25rem;margin:0 0 10px}
.sec-num{font-family:"IBM Plex Mono",monospace;font-size:.8rem;background:var(--khaki);color:#1b2017;padding:2px 8px;border-radius:3px;flex:none}
.sec-art p{max-width:68ch}
.analogy{font-style:italic;color:var(--muted)}
.pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:14px}
.ex{border:1px solid var(--line);border-radius:4px;padding:12px 14px;font-size:.94rem;line-height:1.5}
.ex.good{background:#243326;border-color:#4f7a56}
.ex.bad{background:#3a2621;border-color:#a2553f}
.ex-label{display:flex;align-items:center;gap:7px;font-family:"IBM Plex Mono",monospace;font-size:.72rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px}
.ex.good .ex-label{color:#8fc995}.ex.bad .ex-label{color:#e59b86}
.ex-label svg{width:14px;height:14px}
@media(max-width:560px){.pair{grid-template-columns:minmax(0,1fr)}}
.sec-check{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.sec-check li{display:flex;gap:10px;align-items:flex-start}
.sec-check svg{width:18px;height:18px;flex:none;margin-top:3px;color:#8fc995}

.ch-fig{margin:0 0 16px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#0a0b0d}.ch-fig img{display:block;width:100%;height:auto}
/* qr / play download */
.qr-block{display:flex;flex-wrap:wrap;gap:24px;align-items:center;margin-top:24px}
.qr-img{display:block;width:168px;height:168px;border-radius:6px;background:#fff}
.qr-url{font-family:var(--mono);font-size:.85rem;color:var(--muted);word-break:break-all;margin:12px 0 0}
.cta-actions{display:flex;flex-wrap:wrap;gap:20px;align-items:center}
.cta .qr-img{width:120px;height:120px}
:not(pre)>code{overflow-wrap:anywhere}