:root{color-scheme:dark;--bg:#091526;--panel:#12243a;--text:#eaf2fb;--muted:#a7bed3;--border:#2b445f;--mint:#79e7ca}
*{box-sizing:border-box}
html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 18% 0%,#19304a 0%,#091526 47%,#070f1e 100%);color:var(--text);font:15px/1.7 system-ui,-apple-system,Segoe UI,Arial,sans-serif;min-height:100vh}
a{color:var(--mint)}a:hover{color:#bef8e8}
header{border-bottom:1px solid var(--border);background:#0a1728ee}
.header-inner,.container,.footer-inner{width:min(1120px,calc(100% - 36px));margin:auto}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:21px 0}
.brand{color:white;text-decoration:none;font-size:22px;font-weight:850;white-space:nowrap;letter-spacing:-.5px}
.brand span{color:var(--mint)}
nav{display:flex;flex-wrap:wrap;align-items:center;gap:15px}
nav a{color:var(--muted);text-decoration:none;font-size:13px;font-weight:650}nav a:hover,nav a[aria-current="page"]{color:var(--mint)}
main{padding:38px 0 65px}.eyebrow{text-transform:uppercase;font-size:11px;color:var(--mint);font-weight:800;letter-spacing:2px;margin:0 0 11px}
h1{font-size:clamp(28px,4vw,43px);line-height:1.18;letter-spacing:-.8px;margin:0 0 15px}
.lead{color:var(--muted);max-width:750px;margin:0 0 28px}
.stack{display:grid;gap:16px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,310px),1fr));gap:18px}
.panel{border-radius:16px;border:1px solid var(--border);background:var(--panel);padding:25px}
h2{font-size:22px;line-height:1.35;margin:0 0 15px}
h3{font-size:16px;margin:16px 0 6px}
p{margin:8px 0 14px}p:last-child{margin-bottom:0}
.small{font-size:13px;color:var(--muted)}
.note{border-left:3px solid var(--mint);padding:11px 14px;background:#0c2535;border-radius:0 8px 8px 0}
details{border-radius:12px;border:1px solid var(--border);background:var(--panel);padding:16px 19px}
details summary{cursor:pointer;list-style:none;font-weight:700}
details summary::-webkit-details-marker{display:none}
details summary:after{content:'+';float:right;color:var(--mint);font-size:20px;line-height:1}
details[open] summary:after{content:'−'}details p{color:var(--muted);margin-top:13px}
input,textarea,select{font:inherit;width:100%;padding:12px;background:#07192d;color:var(--text);border:1px solid #44627f;border-radius:10px}
input:focus,textarea:focus,select:focus,button:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
label{display:block;font-size:13px;font-weight:700;margin-bottom:7px}
.form-line{margin:14px 0}textarea{resize:vertical;min-height:145px}
button.primary{border:0;border-radius:10px;background:var(--mint);color:#09221b;padding:12px 19px;font:800 14px system-ui;cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.55}
footer{border-top:1px solid var(--border);background:#071220;padding:27px 0}
.footer-inner{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:24px}
footer strong{font-size:16px}footer p{font-size:12px;color:var(--muted)}
footer a{display:block;text-decoration:none;color:var(--muted);font-size:12px;margin:5px 0}
.footer-bottom{font-size:11px;color:var(--muted);margin-top:21px}
@media(max-width:680px){.header-inner{flex-wrap:wrap;padding:15px 0}nav{gap:10px}main{padding-top:26px}.panel{padding:18px}.footer-inner{grid-template-columns:1fr 1fr}.footer-inner>div:first-child{grid-column:1/-1}}