:root{
  --bg:#0b0e14; --fg:#e6e6e6; --muted:#a9b0bb; --card:#151a22; --line:#232b36; --accent:#4fd1c5;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,"Noto Sans",sans-serif}
a{color:var(--accent);text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:24px}
.site-header,.site-footer{border-bottom:1px solid var(--line);border-top:1px solid var(--line);background:#0f131b}
.site-header{display:flex;gap:24px;justify-content:space-between;align-items:center;padding:14px 24px;position:sticky;top:0;z-index:10}
.site-header .logo{font-weight:800;color:#fff;letter-spacing:.5px}
.site-header nav a{margin-left:16px}
.site-header nav .cta{padding:8px 14px;border:1px solid var(--accent);border-radius:8px}
.hero{padding:48px 0}
.hero h1{font-size:40px;margin:.2em 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:28px}
.card{background:var(--card);border:1px solid var(--line);padding:16px;border-radius:12px}
.btn{display:inline-block;background:var(--accent);color:#013437;padding:10px 16px;border-radius:10px;margin-top:12px}
.site-footer{padding:16px 24px;color:var(--muted)}
input,textarea,select{width:100%;padding:10px;border-radius:10px;border:1px solid var(--line);background:#0f131b;color:var(--fg)}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:700px){form .row{grid-template-columns:1fr}}