:root{
  --bg-0:#040917;--bg-1:#070F24;--panel:#0B162E;--panel-2:#0D1B38;
  --line:rgba(139,165,215,.14);--line-2:rgba(139,165,215,.24);
  --txt:#E9EFFA;--txt-2:#A7B6D4;--mut:#71809F;
  --blue:#3E7BFF;--blue-soft:rgba(62,123,255,.14);--cyan:#22C7F2;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg-0);color:var(--txt);font-family:'Instrument Sans',system-ui,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
.wrap{max-width:860px;margin:0 auto;padding:0 32px}
header{position:sticky;top:0;z-index:50;background:rgba(4,9,23,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{max-width:1120px;margin:0 auto;padding:14px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--txt);font-size:17px}
.brand img{width:26px;height:auto}
.brand b{font-weight:700}
.brand-org{color:var(--txt-2);font-weight:400}
.btn-xs{background:var(--blue);color:#fff;text-decoration:none;font-size:13.5px;font-weight:600;padding:9px 16px;border-radius:8px}
.btn-xs:hover{filter:brightness(1.1)}
main{padding:72px 0 40px}
.kicker{font-family:'Spline Sans Mono',monospace;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}
h1{font-size:clamp(32px,4.4vw,48px);font-weight:700;line-height:1.1;letter-spacing:-.02em;margin-bottom:18px}
.meta{font-family:'Spline Sans Mono',monospace;font-size:12.5px;color:var(--mut);margin-bottom:28px}
.lede{font-size:19px;color:var(--txt-2);border-left:3px solid var(--blue);padding:4px 0 4px 20px;margin-bottom:40px}
.lede strong{color:var(--txt)}
nav.toc{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px 26px;margin-bottom:56px}
nav.toc p{font-family:'Spline Sans Mono',monospace;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);margin-bottom:10px}
nav.toc a{display:block;color:var(--txt-2);text-decoration:none;padding:5px 0;font-size:15.5px}
nav.toc a:hover{color:var(--cyan)}
h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.2;letter-spacing:-.015em;margin:56px 0 18px;scroll-margin-top:90px}
h3{font-size:19px;font-weight:600;margin:30px 0 10px;color:var(--txt)}
p{margin-bottom:16px;color:var(--txt-2)}
p strong,li strong{color:var(--txt)}
ul,ol{margin:0 0 16px 22px;color:var(--txt-2)}
li{margin-bottom:8px}
a{color:var(--cyan)}
.def{background:var(--panel);border:1px solid var(--line-2);border-radius:12px;padding:24px 28px;margin:22px 0;font-size:17px;color:var(--txt)}
.def .k{font-family:'Spline Sans Mono',monospace;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);display:block;margin-bottom:8px}
table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px}
th,td{border:1px solid var(--line-2);padding:12px 14px;text-align:left;vertical-align:top}
th{background:var(--panel-2);color:var(--txt);font-weight:600}
td{color:var(--txt-2)}
td:first-child{color:var(--txt);font-weight:500}
.note{background:var(--blue-soft);border:1px solid rgba(62,123,255,.3);border-radius:12px;padding:18px 22px;margin:24px 0;font-size:15px;color:var(--txt-2)}
.cta{background:linear-gradient(135deg,var(--panel-2),var(--panel));border:1px solid var(--line-2);border-radius:16px;padding:36px;text-align:center;margin:64px 0 0}
.cta h2{margin:0 0 10px;font-size:26px}
.cta p{margin-bottom:22px}
.btn{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;font-size:15px;font-weight:600;padding:14px 28px;border-radius:9px}
.btn:hover{filter:brightness(1.1)}
footer{border-top:1px solid var(--line);margin-top:70px;padding:28px 0;font-size:13.5px;color:var(--mut)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{color:var(--mut)}
details{border:1px solid var(--line);border-radius:12px;background:var(--panel);margin-bottom:12px;padding:0 22px}
summary{cursor:pointer;list-style:none;font-weight:600;font-size:16px;color:var(--txt);padding:16px 30px 16px 0;position:relative}
summary::after{content:"+";position:absolute;right:2px;top:12px;color:var(--cyan);font-size:22px;font-weight:400}
details[open] summary::after{content:"\2212"}
details p{font-size:15px;margin:0 0 16px}