:root{
  --bg:#0b0e14; --bg-2:#11151d; --panel:#151a23; --panel-2:#1b212c;
  --border:#232b38; --border-soft:#1c232e;
  --text:#eef1f6; --muted:#a7b0be; --faint:#7b8493;
  --accent:#3b82f6; --accent-2:#7c5cf6;
  --radius:16px; --radius-sm:11px;
  --max:1080px;
  --grad:linear-gradient(135deg,#3b82f6,#7c5cf6);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:-apple-system,"Segoe UI",Roboto,Inter,system-ui,sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased;
}
a{color:inherit; text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--max); margin:0 auto; padding:0 22px}

/* header */
header.site{position:sticky; top:0; z-index:20; backdrop-filter:blur(10px);
  background:rgba(11,14,20,.72); border-bottom:1px solid var(--border-soft)}
.nav{display:flex; align-items:center; gap:18px; height:66px}
.brand{display:flex; align-items:center; gap:11px; font-weight:650; font-size:17px}
.brand img{width:34px; height:34px; border-radius:9px; box-shadow:0 3px 10px rgba(59,130,246,.35)}
.nav .links{display:flex; gap:22px; margin-left:auto; align-items:center}
.nav .links a{color:var(--muted); font-size:14.5px; font-weight:500}
.nav .links a:hover{color:var(--text)}
.btn{display:inline-flex; align-items:center; justify-content:center; gap:8px;
  border:1px solid var(--border); background:var(--panel); color:var(--text);
  padding:11px 18px; border-radius:11px; font-weight:600; font-size:14.5px; cursor:pointer;
  transition:.15s}
.btn:hover{border-color:#33405a; background:var(--panel-2)}
.btn.primary{background:var(--grad); border:0; color:#fff; box-shadow:0 8px 24px rgba(79,102,241,.35)}
.btn.primary:hover{filter:brightness(1.06)}
.btn.lg{padding:14px 26px; font-size:15.5px}

/* hero */
.hero{position:relative; overflow:hidden; padding:96px 0 72px; text-align:center}
.hero::before{content:""; position:absolute; inset:-40% 0 auto 0; height:620px;
  background:radial-gradient(60% 60% at 50% 0%,rgba(84,92,255,.22),transparent 70%); z-index:0}
.hero>*{position:relative; z-index:1}
.hero .logo-xl{width:96px; height:96px; border-radius:24px; margin:0 auto 26px;
  box-shadow:0 16px 44px rgba(79,102,241,.4)}
.hero h1{font-size:clamp(30px,5vw,52px); line-height:1.1; margin:0 0 18px; letter-spacing:-.5px}
.hero h1 .grad{background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent}
.hero p.lead{font-size:clamp(16px,2.2vw,20px); color:var(--muted); max-width:640px; margin:0 auto 30px}
.hero .cta{display:flex; gap:14px; justify-content:center; flex-wrap:wrap}
.hero .note{margin-top:16px; color:var(--faint); font-size:13.5px}
.other-versions{margin:12px auto 0; width:fit-content; max-width:100%; scroll-margin-top:86px}
.other-versions summary{color:var(--muted); font-size:13.5px; cursor:pointer;
  padding:6px 10px; border-radius:8px}
.other-versions summary:hover{color:var(--text)}
.other-versions summary:focus-visible,.version-links a:focus-visible{
  outline:2px solid var(--accent); outline-offset:3px}
.version-links{display:flex; justify-content:center; flex-wrap:wrap; gap:4px 18px;
  padding:10px 14px; margin-top:6px; border:1px solid var(--border-soft);
  border-radius:var(--radius-sm); background:var(--panel)}
.version-links a{padding:6px 2px; color:var(--muted); font-size:13.5px}
.version-links a:hover{color:var(--text); text-decoration:underline}

.section{padding:64px 0}
.section h2{font-size:clamp(24px,3.4vw,34px); margin:0 0 12px; letter-spacing:-.3px; text-align:center}
.section .sub{color:var(--muted); text-align:center; max-width:600px; margin:0 auto 44px}

/* feature grid */
.grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px}
.card{background:var(--panel); border:1px solid var(--border-soft); border-radius:var(--radius);
  padding:26px 24px}
.card .ico{width:46px; height:46px; border-radius:12px; display:flex; align-items:center;
  justify-content:center; font-size:22px; background:rgba(84,92,255,.14); margin-bottom:16px}
.card h3{margin:0 0 8px; font-size:17px}
.card p{margin:0; color:var(--muted); font-size:14.5px}

/* steps */
.steps{display:grid; grid-template-columns:repeat(3,1fr); gap:18px; counter-reset:s}
.step{background:var(--panel); border:1px solid var(--border-soft); border-radius:var(--radius); padding:26px 24px; position:relative}
.step::before{counter-increment:s; content:counter(s); position:absolute; top:-14px; left:24px;
  width:34px; height:34px; border-radius:10px; background:var(--grad); color:#fff; font-weight:700;
  display:flex; align-items:center; justify-content:center; font-size:15px; box-shadow:0 6px 16px rgba(79,102,241,.4)}
.step h3{margin:8px 0 8px; font-size:16.5px}
.step p{margin:0; color:var(--muted); font-size:14.5px}

/* pricing */
.price-wrap{display:flex; justify-content:center; align-items:stretch; flex-wrap:wrap; gap:22px}
.price{background:linear-gradient(180deg,var(--panel),var(--bg-2)); border:1px solid var(--border);
  border-radius:22px; padding:36px 40px; flex:1 1 340px; max-width:460px; text-align:center;
  box-shadow:0 20px 50px rgba(0,0,0,.4)}
.price .perk{display:flex; align-items:center; gap:14px; text-align:left;
  margin:0 0 22px; padding:14px 16px; border:1px solid rgba(84,92,255,.4);
  background:rgba(84,92,255,.1); border-radius:14px}
.price .perk-mark{flex:0 0 44px; height:44px; border-radius:12px; display:grid; place-items:center;
  background:rgba(84,92,255,.22); color:#d5e1ff; font-size:20px; font-weight:750}
.price .perk-copy{display:flex; flex-direction:column; gap:2px; min-width:0}
.price .perk-copy b{color:#e4ebff; font-size:14.5px; font-weight:700; line-height:1.25}
.price .perk-copy small{color:#93a6d6; font-size:12.5px; font-weight:500; line-height:1.3}
.price .perk.free{border-color:rgba(52,168,83,.45); background:rgba(52,168,83,.1)}
.price .perk.free .perk-mark{background:rgba(52,168,83,.22); color:#b6f0c4}
.price .perk.free .perk-copy b{color:#d8f5df}
.price .perk.free .perk-copy small{color:#7dcaa0}
.price-foot{max-width:520px; margin:30px auto 0; text-align:center}
.price-foot .btn{width:100%}
.price-foot .note{margin-top:14px}
.price .tag{display:inline-block; font-size:12.5px; font-weight:600; color:#a9c0ff;
  background:rgba(84,92,255,.14); padding:5px 12px; border-radius:999px; margin-bottom:16px}
.price .amt{font-size:52px; font-weight:750; letter-spacing:-1px}
.price .amt span{font-size:22px; color:var(--muted); font-weight:600}
.price .per{color:var(--muted); margin:2px 0 16px}
.price ul{list-style:none; padding:0; margin:0; text-align:left}
.price li{padding:9px 0 9px 30px; position:relative; color:var(--muted); font-size:14.5px; border-bottom:1px solid var(--border-soft)}
.price li:last-child{border-bottom:0}
.price li::before{content:"✓"; position:absolute; left:0; top:9px; color:#5b8cff; font-weight:700}

/* faq */
.faq{max-width:760px; margin:0 auto}
.qa{border:1px solid var(--border-soft); border-radius:var(--radius-sm); padding:18px 20px; margin-bottom:12px; background:var(--panel)}
.qa h4{margin:0 0 6px; font-size:15.5px}
.qa p{margin:0; color:var(--muted); font-size:14.5px}
.qa ol{margin:10px 0; padding-left:1.25em; color:var(--muted); font-size:14.5px}
.qa ol li{margin:4px 0}
.qa ol + p{margin-top:8px}

/* footer */
footer.site{border-top:1px solid var(--border-soft); background:var(--bg-2); padding:44px 0 40px; margin-top:40px}
.foot{display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:30px}
.foot .brand{margin-bottom:14px}
.foot p,.foot a{color:var(--muted); font-size:13.5px; margin:4px 0}
.foot a:hover{color:var(--text)}
.foot h5{font-size:12.5px; text-transform:uppercase; letter-spacing:.6px; color:var(--faint); margin:0 0 12px}
.req{color:var(--faint); font-size:12.5px; line-height:1.7; margin-top:16px}
.legal-bottom{border-top:1px solid var(--border-soft); margin-top:28px; padding-top:20px;
  color:var(--faint); font-size:12.5px; display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap}

/* legal document pages */
.doc{max-width:840px; margin:0 auto; padding:48px 0 20px}
.doc h1{font-size:30px; margin:0 0 8px}
.doc .updated{color:var(--faint); font-size:13.5px; margin-bottom:32px}
.doc h2{font-size:20px; margin:34px 0 10px}
.doc h3{font-size:16.5px; margin:22px 0 8px}
.doc p,.doc li{color:var(--muted); font-size:15px}
.doc ul,.doc ol{padding-left:22px}
.doc a{color:#6f9bff}
.back{display:inline-flex; gap:7px; align-items:center; color:var(--muted); font-size:14px; margin-bottom:8px}
.mark{background:rgba(210,153,34,.14); color:#f0c25a; padding:1px 7px; border-radius:6px; font-size:.9em}

@media (max-width:820px){
  .grid,.steps{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr 1fr}
  .nav .links a:not(.btn){display:none}
}
@media (max-width:520px){ .foot{grid-template-columns:1fr} }