:root{
  --bg:#0b1220;--bg-soft:#0e1528;--card:#0f172a;--muted:#93a4bf;
  --text:#eef2f7;--brand:#0ea5e9;--brand2:#22c55e;--accent:#38bdf8;
  --border:#1f2a44;--shadow:0 10px 30px rgba(0,0,0,.25);
  --radius:18px;--radius-sm:14px;--radius-lg:28px;
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:linear-gradient(180deg,var(--bg),var(--bg-soft));
  color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Arial;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
header.site-header{
  position:sticky;top:0;z-index:10;background:rgba(11,18,32,.7);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--border);
}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--text)}
.logo img{height:34px;width:auto;border-radius:10px}
nav ul{display:flex;gap:18px;list-style:none;margin:0;padding:0}
nav a{color:var(--text);text-decoration:none;padding:8px 12px;border-radius:12px}
nav a:hover, nav a:focus{background:#101a30}
.btn{display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border:1px solid var(--border);
  border-radius:14px;color:var(--text);text-decoration:none;background:#0e162a;box-shadow:var(--shadow);}
.btn-brand{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#041521;border:none}
.btn:hover{transform:translateY(-1px);}
.hero{position:relative;min-height:66vh;display:grid;place-items:center;overflow:hidden}
.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:contrast(1.05) saturate(1.05) brightness(.9)}
.hero .overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,18,32,.4),rgba(11,18,32,.85))}
.hero .content{position:relative;z-index:1;padding:40px 0;text-align:center}
.hero h1{font-size:48px;line-height:1.1;margin:0 0 14px}
.hero p{max-width:760px;margin:0 auto 24px;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:40px 0}
.card{background:linear-gradient(180deg,#0f182e,#0c1426);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card h3{margin:0 0 10px}
.grid-2{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:center}
.section{padding:56px 0}
.section h2{font-size:32px;line-height:1.2;margin:0 0 10px}
.list{margin:0;padding-left:18px}
.list li{margin:6px 0}
footer{border-top:1px solid var(--border);padding:28px 0;margin-top:60px;background:#0c1426}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:20px}
.footer-col h4{margin:0 0 10px}
.small{font-size:14px;color:var(--muted)}
.tag{display:inline-block;background:#102038;border:1px solid var(--border);padding:6px 10px;border-radius:999px;margin:6px 6px 0 0;color:var(--muted)}
.banner{position:fixed;bottom:16px;left:16px;right:16px;background:#0e162a;border:1px solid var(--border);
  border-radius:16px;padding:16px;z-index:9999;box-shadow:var(--shadow);display:none}
.banner h4{margin:0 0 8px}
.banner .actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
label.switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.switch input{appearance:none;width:38px;height:22px;background:#20304f;border-radius:999px;position:relative;outline:none}
.switch input:checked{background:linear-gradient(135deg,var(--brand),var(--brand2))}
.switch input::after{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;background:#fff;border-radius:50%;transition:all .2s}
.switch input:checked::after{left:19px}
.table{width:100%;border-collapse:separate;border-spacing:0 8px}
.table th,.table td{padding:12px 14px;border:1px solid var(--border)}
.table th{background:#0e162a}
.table tr{background:#0e162a}
.notice{padding:12px 14px;border:1px dashed var(--border);border-radius:12px;color:var(--muted)}
input,textarea,select{width:100%;padding:12px 14px;border-radius:12px;background:#0e162a;border:1px solid var(--border);color:var(--text)}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
form .row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
form button{margin-top:10px}
.alert{margin:12px 0;padding:12px 14px;border-radius:12px}
.alert.ok{background:#05261a;border:1px solid #0b7a42}
.alert.err{background:#2a0e12;border:1px solid #7a0b29}
.badge{padding:4px 8px;background:#0a182e;border:1px solid var(--border);border-radius:8px;color:var(--muted);font-size:12px}
.kbd{border:1px solid var(--border);background:#0a182c;border-radius:6px;padding:2px 6px;font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}
@media (max-width:980px){
  .cards{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:40px}
}
@media (max-width:640px){
  nav ul{display:none}
  .cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:32px}
}
.visually-hidden{position:absolute!important;clip:rect(1px,1px,1px,1px);padding:0;border:0;height:1px;width:1px;overflow:hidden}