/* Symbia Labs — site.css. Hand-written, no build step. Light and dark follow the system. */
:root{
  --bg:#ffffff;--ink:#0e1012;--ink2:#3b4046;--muted:#6b7178;--line:#e3e5e8;
  --accent:#e8601c;--on-accent:#140b05;--link:#c24e12;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --wrap:1080px;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0f1012;--ink:#f2f3f4;--ink2:#c3c7cc;--muted:#8a9097;--line:#2a2d31;--link:#ff8a4c}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 var(--sans)}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:var(--bg);padding:8px 12px;border:1px solid var(--line)}

/* header */
.site-header{border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:18px;letter-spacing:-.02em;white-space:nowrap}
.brand:hover{text-decoration:none}
.dot{width:12px;height:12px;border-radius:3px;background:var(--accent);flex:none}
.site-header nav{display:flex;gap:24px;font-size:15px}
.site-header nav a{color:var(--ink2)}
.site-header nav a[aria-current]{color:var(--ink);font-weight:600}
@media (max-width:640px){.site-header nav{gap:16px;font-size:14px}.site-header nav .wide{display:none}}
@media (max-width:440px){.site-header .wrap{flex-wrap:wrap;height:auto;padding-top:14px;padding-bottom:12px;row-gap:10px}.site-header nav{width:100%}.site-header nav .wide{display:block}}

/* type */
.eyebrow{display:block;margin:0 0 14px;font:600 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
h1{font-size:clamp(40px,6.4vw,76px);line-height:1.02;letter-spacing:-.035em;margin:0 0 22px;font-weight:800}
h2{font-size:clamp(28px,3.4vw,40px);line-height:1.1;letter-spacing:-.025em;margin:0 0 14px;font-weight:800}
h3{font-size:19px;line-height:1.25;letter-spacing:-.01em;margin:0 0 8px;font-weight:700}
p{margin:0 0 14px;color:var(--ink2)}
.lead{font-size:clamp(18px,1.9vw,22px);line-height:1.5;color:var(--ink2);max-width:760px;margin:0 0 30px}
.fine{font-size:14px;color:var(--muted)}

/* buttons */
.button{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--on-accent);font-weight:700;font-size:16px;padding:12px 20px;border-radius:6px}
.button:hover{text-decoration:none;background:#f06d2a}
.button.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.button.ghost:hover{box-shadow:inset 0 0 0 1px var(--ink2)}
.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* sections */
.hero{padding:96px 0 88px}
.section{padding:80px 0;border-top:1px solid var(--line)}
.section-head{max-width:720px;margin:0 0 36px}
.grid{display:grid;gap:16px}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:760px){.grid.two{grid-template-columns:1fr}.hero{padding:64px 0 56px}.section{padding:56px 0}}
.card{border:1px solid var(--line);border-radius:10px;padding:26px}
.card p:last-child{margin-bottom:0}
.card .eyebrow{margin-bottom:12px}

/* work */
.work{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:860px){.work{grid-template-columns:1fr}}
.work-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:10px;overflow:hidden;color:inherit}
.work-card:hover{text-decoration:none;border-color:var(--ink2)}
.work-card img{aspect-ratio:4/3;object-fit:cover;width:100%;border-bottom:1px solid var(--line);background:#141414}
.work-card .body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:6px;flex:1}
.app-name{display:flex;align-items:center;gap:12px;margin:0 0 6px}
.app-name img{width:40px;height:40px;border-radius:9px;border:0;aspect-ratio:auto;background:none}
.app-name h3{margin:0;font-size:24px}
.work-card p{margin:0 0 10px}
.more{margin-top:auto;font-weight:600;color:var(--link)}

/* about */
.about{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:48px;align-items:start}
@media (max-width:860px){.about{grid-template-columns:1fr;gap:24px}}
.facts{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}
.facts li{padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink2);display:flex;justify-content:space-between;gap:16px}
.facts li b{color:var(--ink);font-weight:600}
.facts .num{font-family:var(--mono);font-size:14px;color:var(--muted);white-space:nowrap}

/* contact */
.contact h2{font-size:clamp(32px,4.4vw,56px)}
.contact .mail{font-size:clamp(20px,2.6vw,30px);font-weight:700;letter-spacing:-.01em}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:32px 0 48px;font-size:14px;color:var(--muted)}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px}
.site-footer a{color:var(--ink2)}

/* product pages */
.product-hero{padding:80px 0 56px}
.product-hero .app-name{gap:16px;margin-bottom:20px}
.product-hero .app-name img{width:72px;height:72px;border-radius:16px}
.product-hero h1{margin:0;font-size:clamp(44px,6vw,68px)}
.price{margin:16px 0 0;font-size:15px;color:var(--muted)}
.gallery{padding-bottom:80px}
@media (max-width:760px){.gallery{padding-bottom:56px}}
.shot{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#141414}
.shots{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:16px}
@media (max-width:760px){.shots{grid-template-columns:1fr}}
.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
@media (max-width:860px){.features{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.features{grid-template-columns:1fr}}
.feature{padding:22px 24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature h3{font-size:17px}
.feature p{margin:0;font-size:15px}
.install{margin:0 0 32px;padding:16px 20px;background:var(--code);border:1px solid var(--line);border-radius:8px;font:14px/1.7 var(--mono);color:var(--ink);overflow-x:auto}
.specs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px}
@media (max-width:760px){.specs{grid-template-columns:1fr;gap:24px}}
.specs ul{margin:0;padding:0 0 0 18px;color:var(--ink2)}
.specs li{margin:0 0 8px}
.notice{border-left:3px solid var(--accent);padding:4px 0 4px 16px;margin:24px 0 0}

/* white paper (bias/tape/) */
:root{--s1:#2a78d6;--s2:#eb6834;--s3:#1baf7a;--s4:#eda100;--grid:#eceef0;--code:#f5f6f7}
@media (prefers-color-scheme:dark){:root{--s1:#3987e5;--s2:#d95926;--s3:#199e70;--s4:#c98500;--grid:#212428;--code:#17191c}}
.paper{max-width:780px;padding-top:64px;padding-bottom:80px}
.paper-head{margin:0 0 40px;padding:0 0 28px;border-bottom:1px solid var(--line)}
.paper-head h1{font-size:clamp(34px,5vw,52px);line-height:1.08;margin:0 0 16px}
.paper-head .eyebrow{display:inline-block}
.byline{margin:0;font-size:15px;color:var(--muted)}
.paper h2{font-size:clamp(24px,2.6vw,30px);margin:48px 0 14px}
.paper h3{font-size:19px;margin:32px 0 10px}
.paper p,.paper li{color:var(--ink2)}
.paper ol,.paper ul{padding-left:22px;margin:0 0 14px}
.paper li{margin:0 0 6px}
.paper li p{margin:0}
.paper code{font:14px var(--mono);background:var(--code);padding:1px 5px;border-radius:4px}
.paper strong{color:var(--ink)}
.paper .table{overflow-x:auto;margin:6px 0 22px}
.paper table{border-collapse:collapse;font-size:15px;min-width:100%}
.paper th,.paper td{text-align:left;padding:8px 14px 8px 0;border-bottom:1px solid var(--line);white-space:nowrap}
.paper thead th{color:var(--ink);font-weight:600;border-bottom-color:var(--ink2)}
.paper td{color:var(--ink2);font-variant-numeric:tabular-nums}
.math{overflow-x:auto;margin:8px 0 22px;padding:14px 0;font-size:19px;color:var(--ink)}
.math math{display:block;margin:0 auto}
.flow{list-style:none;padding:0;margin:8px 0 24px;display:flex;flex-wrap:wrap;gap:10px 0;counter-reset:stage}
.flow li{display:flex;align-items:center;margin:0}
.flow li b,.flow li span{display:block}
.flow li{flex-direction:column;align-items:flex-start;justify-content:center;border:1px solid var(--line);border-radius:8px;padding:8px 12px;min-height:58px;font-size:14px;line-height:1.3;position:relative;margin-right:22px}
.flow li b{color:var(--ink);font-weight:600}
.flow li span{color:var(--muted)}
.flow li:not(:last-child)::after{content:"";position:absolute;right:-17px;top:50%;width:12px;height:1px;background:var(--ink2)}
.flow li:not(:last-child)::before{content:"";position:absolute;right:-17px;top:calc(50% - 3px);border:3.5px solid transparent;border-left:5px solid var(--ink2);border-right:0}
/* charts: dataviz reference palette slots 1-4, validated against both surfaces */
.chart{margin:12px 0 28px}
.chart figcaption{display:flex;flex-direction:column;gap:2px;margin:0 0 10px}
.chart figcaption strong{font-size:16px}
.chart figcaption span{font-size:14px;color:var(--muted)}
.legend{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none;padding:0;margin:0 0 6px;font-size:14px;color:var(--ink2)}
.legend li{display:flex;align-items:center;gap:8px;margin:0}
.key{display:inline-block;width:16px;height:2px;border-radius:1px;background:currentColor}
.key.s1{color:var(--s1)}.key.s2{color:var(--s2)}.key.s3{color:var(--s3)}.key.s4{color:var(--s4)}
.plot{position:relative;outline-offset:4px}
.chart-svg{display:block;width:100%;height:auto;overflow:visible;font-family:var(--sans)}
.chart-svg .grid{stroke:var(--grid);stroke-width:1}
.chart-svg .zero{stroke:var(--line);stroke-width:1}
.chart-svg .tick{font-size:12px;fill:var(--muted);font-variant-numeric:tabular-nums}
.chart-svg .axis-title{font-size:12px;fill:var(--muted)}
.chart-svg .line{fill:none;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.chart-svg .line.s1{stroke:var(--s1)}.chart-svg .line.s2{stroke:var(--s2)}.chart-svg .line.s3{stroke:var(--s3)}.chart-svg .line.s4{stroke:var(--s4)}
.chart-svg .dot{stroke:var(--bg);stroke-width:2}
.chart-svg .dot.s1{fill:var(--s1)}.chart-svg .dot.s2{fill:var(--s2)}.chart-svg .dot.s3{fill:var(--s3)}.chart-svg .dot.s4{fill:var(--s4)}
.chart-svg .end-label{font-size:12px;fill:var(--ink2)}
.chart-svg .leader{fill:none;stroke:var(--muted);stroke-width:1}
.chart-svg .hover{display:none}.chart-svg .hover.on{display:inline}
.chart-svg .crosshair{stroke:var(--ink2);stroke-width:1}
.chart-svg .hit{fill:transparent}
.tip{position:absolute;top:8px;min-width:150px;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:13px;line-height:1.5;box-shadow:0 2px 10px rgba(0,0,0,.08);pointer-events:none}
.tip b{display:block;color:var(--ink);margin-bottom:2px}
.tip span{display:flex;align-items:center;gap:8px;color:var(--ink2)}
.tip em{margin-left:auto;padding-left:12px;font-style:normal;color:var(--ink);font-variant-numeric:tabular-nums}
.chart details{margin:8px 0 0;font-size:14px}
.chart summary{cursor:pointer;color:var(--link)}
.chart .source{margin:6px 0 0;font:12px var(--mono);color:var(--muted)}
.paper-back{margin:56px 0 0;padding-top:24px;border-top:1px solid var(--line);font-weight:600}
@media print{
  .site-header nav,.site-footer,.skip,.chart details,.tip,.paper-back{display:none}
  .paper{max-width:none;padding:0}
  body{font-size:11pt}
  .chart,.math,.flow,table{break-inside:avoid}
  .math{font-size:10pt;overflow:visible}
  .paper h2,.paper h3{break-after:avoid}
}