:root{--ground:#F3F5F8;--panel:#FFFFFF;--ink:#14213D;--mute:#56627A;--rule:#D5DBE3;--link:#2F9E6B;--amber:#B87500;--red:#B3261E;
 box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--ground:#0E1524;--panel:#162036;--ink:#E7ECF5;--mute:#A3AEC4;--rule:#2C3854;--link:#4CC38A;--amber:#E0A83A;--red:#F07A70}}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;background:var(--ground);color:var(--ink);font:17px/1.6 "IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif}
main{max-width:1040px;margin:0 auto;padding:28px 22px 72px}
a{color:var(--ink);text-underline-offset:3px} a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
nav{display:flex;gap:20px;flex-wrap:wrap;align-items:center;font-weight:600;margin-bottom:40px}
nav .brand{text-decoration:none;margin-right:auto}
.wm{display:inline-flex;align-items:center;gap:.14em;font-weight:700;letter-spacing:.03em}
.wm svg{width:1.15em;height:.5em}
nav .wm{font-size:20px}
h1{margin:0}
h1 .wm{font-size:clamp(46px,9vw,92px);line-height:1}
.tag{font-size:clamp(18px,3vw,24px);font-weight:600;letter-spacing:.12em;text-transform:uppercase;margin:14px 0 18px}
h2{font-size:clamp(24px,4vw,32px);line-height:1.2;margin:72px 0 14px;font-weight:700}
p{max-width:64ch;margin:0 0 14px} .lede{font-size:20px;color:var(--mute);max-width:56ch}
.btn{display:inline-block;font:inherit;font-weight:700;padding:13px 20px;border-radius:8px;background:var(--ink);color:var(--panel);text-decoration:none;border:0;cursor:pointer}
.btn.alt{background:transparent;color:var(--ink);border:2px solid var(--ink)}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:20px 0}
video{width:100%;border-radius:12px;border:1px solid var(--rule);background:#000;display:block}
video.hero{margin:30px 0 8px;box-shadow:0 24px 70px rgba(0,0,0,.35)}
.icon{width:150px;height:auto;color:var(--ink);display:block;margin-bottom:22px}
.stack{max-width:560px;margin:26px 0 12px}
.lvl{background:var(--panel);border:1px solid var(--rule);border-radius:10px;padding:14px 18px}
.lvl small{display:block;color:var(--mute);font-weight:600;letter-spacing:.14em;font-size:12px}
.lvl code{font:500 20px "IBM Plex Mono",ui-monospace,monospace;overflow-wrap:anywhere}
.lvl.hub{border:2px solid var(--link)}
.arr{text-align:center;color:var(--link);font-size:24px;line-height:1.3}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:var(--panel);border:1px solid var(--rule);border-radius:10px;padding:20px}
.card b{display:block;font-size:20px;letter-spacing:.06em;margin-bottom:6px}
ol.steps{padding-left:22px} ol.steps li{margin:10px 0;max-width:62ch}
.principle{font-size:20px;font-weight:600;max-width:40ch;border-left:5px solid var(--red);padding:6px 16px}
.creds{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 0;padding:0;list-style:none}
.creds li{border:1px solid var(--rule);border-radius:999px;padding:6px 14px;font-weight:600;font-size:15px;background:var(--panel)}
table{border-collapse:collapse;width:100%;background:var(--panel);font-size:15px}
th,td{border-bottom:1px solid var(--rule);padding:9px 10px;text-align:left} th{font-weight:700}
.tw{overflow-x:auto;border:1px solid var(--rule);border-radius:10px}
.note{border-left:5px solid var(--amber);background:var(--panel);padding:12px 16px;border-radius:0 8px 8px 0;max-width:70ch}
footer{margin-top:72px;padding-top:18px;border-top:1px solid var(--rule);font-size:14px;color:var(--mute)}
.ok{color:var(--link);font-weight:700}.warn{color:var(--amber);font-weight:700}.bad{color:var(--red);font-weight:700}
@media (max-width:600px){main{padding:22px 18px 56px}nav{gap:14px;font-size:15px;margin-bottom:28px}.btn{width:100%;text-align:center}.lvl code{font-size:17px}}

/* Beta access */
.beta-section{scroll-margin-top:24px}
.beta-form{max-width:820px;margin:24px 0;background:var(--panel);border:1px solid var(--rule);border-radius:12px;padding:22px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 18px}
.beta-form label{display:flex;flex-direction:column;gap:6px;font-weight:600;min-width:0}
.beta-form label span{font-size:14px}
.beta-form input,.beta-form select,.beta-form textarea{width:100%;font:inherit;color:var(--ink);background:var(--ground);border:1px solid var(--rule);border-radius:8px;padding:11px 12px;min-height:46px}
.beta-form textarea{resize:vertical;min-height:120px}
.beta-form .full{grid-column:1/-1}
.beta-form .consent{flex-direction:row;align-items:flex-start;gap:10px;margin:18px 0;font-weight:400}
.beta-form .consent input{width:20px;height:20px;min-height:20px;margin-top:3px;flex:0 0 auto}
.form-fine{font-size:14px;color:var(--mute);margin-top:12px}
@media (max-width:650px){.form-grid{grid-template-columns:1fr}.beta-form{padding:18px}.beta-form .full{grid-column:auto}}