:root{
  --bg:#0d1117;
  --bg-2:#131a24;
  --panel:rgba(22,29,40,.82);
  --line:#232c39;
  --line-2:#2d3949;
  --text:#e6edf5;
  --muted:#8b97a8;
  --accent:#4f8cff;
  --accent-2:#7aa8ff;
  --danger:#ff6b6b;
  --radius:14px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(1100px 620px at 78% -12%,rgba(79,140,255,.20),transparent 62%),
    radial-gradient(900px 520px at 8% 108%,rgba(120,90,255,.14),transparent 60%),
    var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent-2);text-decoration:none}
a:hover{text-decoration:underline}

.wrap{min-height:100%;display:flex;flex-direction:column}
.container{width:100%;max-width:1060px;margin:0 auto;padding:0 24px}

/* header */
.site-header{padding:22px 0}
.site-header .container{display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;letter-spacing:-.01em;color:var(--text)}
.brand:hover{text-decoration:none}
.brand svg{display:block}
.brand span{font-size:17px}
.nav{margin-left:auto;display:flex;align-items:center;gap:20px}
.nav a{color:var(--muted);font-size:14px}
.nav a:hover{color:var(--text);text-decoration:none}
.lang{display:flex;border:1px solid var(--line-2);border-radius:8px;overflow:hidden}
.lang button{
  background:transparent;border:0;color:var(--muted);
  font:600 12px/1 inherit;letter-spacing:.04em;padding:7px 10px;cursor:pointer;
}
.lang button.is-active{background:var(--accent);color:#fff}

/* main */
main{flex:1 0 auto;display:flex;align-items:center;padding:32px 0 56px}
.grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;width:100%}

.pitch h1{font-size:38px;line-height:1.15;letter-spacing:-.025em;margin:0 0 16px}
.pitch p{color:var(--muted);font-size:16px;max-width:44ch;margin:0 0 26px}
.features{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.features li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:#c3cede}
.tick{flex:0 0 20px;height:20px;margin-top:1px;border-radius:6px;background:rgba(79,140,255,.14);
  display:grid;place-items:center;color:var(--accent-2);font-size:12px;font-weight:700}

/* card */
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
  padding:30px 30px 26px;
}
.card h2{margin:0 0 4px;font-size:20px;letter-spacing:-.02em}
.card .sub{margin:0 0 22px;color:var(--muted);font-size:13.5px}
.field{margin-bottom:15px}
.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px}
.field input{
  width:100%;padding:11px 12px;border-radius:9px;
  border:1px solid var(--line-2);background:#0f151d;color:var(--text);
  font:15px/1.2 inherit;transition:border-color .15s,box-shadow .15s;
}
.field input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,140,255,.18)}
.row{display:flex;align-items:center;justify-content:space-between;margin:6px 0 20px;font-size:13px}
.row label{display:flex;align-items:center;gap:8px;color:var(--muted);cursor:pointer}
.row input[type=checkbox]{accent-color:var(--accent);width:15px;height:15px}
.btn{
  width:100%;padding:12px;border:0;border-radius:9px;cursor:pointer;
  background:linear-gradient(180deg,var(--accent),#3f78e8);color:#fff;
  font:600 15px/1 inherit;transition:filter .15s,transform .05s;
}
.btn:hover{filter:brightness(1.07)}
.btn:active{transform:translateY(1px)}
.divider{display:flex;align-items:center;gap:12px;margin:20px 0;color:var(--muted);font-size:12px}
.divider::before,.divider::after{content:"";height:1px;flex:1;background:var(--line-2)}
.btn-ghost{
  display:block;width:100%;padding:11px;border:1px solid var(--line-2);border-radius:9px;cursor:pointer;
  background:transparent;color:var(--text);font:500 14px/1 inherit;text-align:center;
}
.btn-ghost:hover{border-color:#3c4a5e;text-decoration:none}
.note{margin:18px 0 0;text-align:center;color:var(--muted);font-size:12.5px}
.msg{
  display:none;margin:0 0 16px;padding:10px 12px;border-radius:9px;font-size:13px;
  background:rgba(255,107,107,.10);border:1px solid rgba(255,107,107,.3);color:#ffb3b3;
}
.msg.is-visible{display:block}

/* content pages */
.doc{max-width:720px;margin:0 auto;padding:8px 0 40px}
.doc h1{font-size:30px;letter-spacing:-.02em;margin:0 0 8px}
.doc .lead{color:var(--muted);margin:0 0 28px}
.doc h2{font-size:18px;margin:30px 0 8px;letter-spacing:-.01em}
.doc p,.doc li{color:#c3cede}
.doc ul{padding-left:20px}
.doc .updated{color:var(--muted);font-size:13px;margin-top:34px;border-top:1px solid var(--line);padding-top:16px}
.center{text-align:center;padding:60px 0}
.center .code{font-size:62px;font-weight:700;letter-spacing:-.04em;color:var(--accent);margin:0}

/* footer */
.site-footer{flex:0 0 auto;border-top:1px solid var(--line);padding:20px 0;margin-top:auto}
.site-footer .container{display:flex;gap:18px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:13px}
.site-footer nav{margin-left:auto;display:flex;gap:18px}
.site-footer a{color:var(--muted)}

@media (max-width:860px){
  .grid{grid-template-columns:1fr;gap:34px}
  .pitch h1{font-size:30px}
  .nav a{display:none}
  main{padding-top:8px}
}