:root{
  --bg:#0a0b0e; --panel:#121419; --line:#22252d; --fg:#e8eaf0; --dim:#8b93a7;
  --acc:#5eead4; --acc2:#818cf8; --err:#f87171; --ok:#4ade80;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);
  font:15px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
code,pre,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
header{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(10,11,14,.85);
  backdrop-filter:blur(8px);z-index:10}
nav{display:flex;align-items:center;gap:28px;height:60px}
.logo{font-weight:700;letter-spacing:-.4px;font-size:19px;display:flex;align-items:center;gap:9px;color:var(--fg)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--acc);box-shadow:0 0 12px var(--acc)}
nav .sp{flex:1}
nav a.m{color:var(--dim);font-size:14px}
nav a.m:hover{color:var(--fg);text-decoration:none}
.btn{display:inline-block;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:600;
  border:1px solid var(--line);background:var(--panel);color:var(--fg);cursor:pointer;font-family:inherit}
.btn:hover{background:#1a1d24;text-decoration:none}
.btn:disabled{opacity:.55;cursor:wait}
.btn.p{background:var(--acc);color:#06231f;border-color:var(--acc)}
.btn.p:hover{filter:brightness(1.08);background:var(--acc)}
.btn.wide{width:100%;margin-top:14px}
h1{font-size:48px;line-height:1.1;letter-spacing:-1.6px;margin:56px 0 14px;font-weight:700}
h3{font-size:17px;margin:0 0 6px;font-weight:600}
.sub{font-size:18px;color:var(--dim);max-width:600px;line-height:1.55}
.grid{display:grid;gap:16px;margin-top:28px}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px;position:relative}
.card.feature{border-color:var(--acc)}
.badge{position:absolute;top:-10px;left:22px;background:var(--acc);color:#06231f;
  font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:99px;letter-spacing:.3px}
.price{font-size:38px;font-weight:700;letter-spacing:-1.2px;margin:10px 0 16px}
.price span{font-size:15px;color:var(--dim);font-weight:500;margin-left:2px}
ul{list-style:none;padding:0;margin:0}
li{font-size:14px;color:var(--dim);padding:5px 0 5px 20px;position:relative}
li:before{content:"";position:absolute;left:2px;top:13px;width:6px;height:6px;
  border-radius:50%;background:var(--acc2)}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px;margin-top:28px}
.muted{color:var(--dim);font-size:14px;margin:0 0 14px}
.row{display:grid;grid-template-columns:1fr 220px;gap:12px}
input{background:#0d0f13;border:1px solid var(--line);color:var(--fg);padding:10px 13px;border-radius:8px;
  font-size:14px;width:100%;font-family:ui-monospace,Menlo,monospace}
input:focus{outline:none;border-color:var(--acc2)}
.hint{font-size:12.5px;color:var(--dim);margin:12px 0 0}
.err{color:var(--err);font-size:13.5px;margin-top:12px}
.hide{display:none}
.faq{margin-top:48px}
.faq h3{font-size:20px;margin-bottom:14px}
details{border-bottom:1px solid var(--line);padding:14px 0}
summary{cursor:pointer;font-size:15px;font-weight:550;list-style:none}
summary:before{content:"+";color:var(--acc);font-weight:700;margin-right:10px}
details[open] summary:before{content:"-"}
details p{margin:10px 0 0;color:var(--dim);font-size:14px;max-width:640px}
footer{border-top:1px solid var(--line);margin-top:64px;padding:26px 0 44px;color:var(--dim);
  font-size:13.5px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media(max-width:860px){
  .g3{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
  h1{font-size:36px}
}