:root{
  --bg:#0b1320;
  --panel:#141c2f;
  --muted:#9bb0d3;
  --text:#e9f0ff;
  --primary:#2f6df6;
  --primary-600:#2558c7;
  --border:#24314c;
  --shadow:0 12px 30px rgba(0,0,0,.3);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji";
  background:var(--bg);
  color:var(--text);
  line-height:1.5;
}
.site-header{
  position:sticky;top:0;z-index:10;
  background:rgba(11,19,32,.9);backdrop-filter:blur(6px);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:1rem;
  padding:.75rem 1rem;
}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--text);text-decoration:none;font-weight:700}
.brand img{height:34px;width:auto;display:block}
.site-nav{margin-left:auto;display:flex;gap:.75rem}
.site-nav a{color:var(--muted);text-decoration:none;padding:.5rem .75rem;border-radius:.5rem}
.site-nav a:hover,.site-nav a.active{color:var(--text);background:var(--panel)}
.burger{display:none}
.container{max-width:1000px;margin-inline:auto;padding:1.25rem}
.hero{padding:2rem 0}
h1{font-size:clamp(1.8rem,2.4vw + 1rem,2.6rem);margin:0 0 .5rem}
h2{margin:0 0 .35rem}
p{margin:.25rem 0 1rem;color:var(--muted)}
.card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:1rem;box-shadow:var(--shadow);margin:1rem 0}
.bullets{padding-left:1.2rem;margin:.25rem 0}
.bullets li{margin:.25rem 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1rem;border-radius:.6rem;border:1px solid var(--border);background:transparent;color:var(--text);text-decoration:none;cursor:pointer}
.btn:hover{background:var(--panel)}
.btn-primary{background:var(--primary);border-color:transparent}
.btn-primary:hover{background:var(--primary-600)}
label{display:block;margin:.5rem 0 .25rem}
input,textarea{width:100%;background:#0e1729;color:var(--text);border:1px solid var(--border);border-radius:.6rem;padding:.65rem .8rem;outline:none}
input:focus,textarea:focus{border-color:#365db8}
.hidden{display:none}
.site-footer{border-top:1px solid var(--border);padding:2rem 1rem;color:var(--muted);text-align:center;margin-top:2rem}
@media (max-width: 860px){
  .burger{display:inline-flex;margin-left:auto;background:transparent;border:none;color:var(--text);font-size:1.3rem}
  .site-nav{position:absolute;top:60px;right:10px;left:10px;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:.5rem;display:flex;flex-direction:column;gap:.25rem}
  .site-nav[data-collapsed="true"]{display:none}
}