/* RR Design one-pager. Mobile-first, walang JS at walang external resources. */
:root{
  --bg:#05080f; --surface:rgba(14,22,40,.72); --line:rgba(120,170,255,.18);
  --cyan:#22d3ee; --blue:#3b82f6; --violet:#8b5cf6; --green:#34d399;
  --ink:#e6edf7; --muted:#8fa3bf;
  --font:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font:16px/1.6 var(--font);color:var(--ink);min-height:100vh;
  padding-bottom:calc(76px + env(safe-area-inset-bottom,0px));
  background:
    radial-gradient(800px 500px at 10% -5%,rgba(59,130,246,.25),transparent 60%),
    radial-gradient(700px 500px at 100% 15%,rgba(139,92,246,.22),transparent 60%),
    linear-gradient(rgba(120,170,255,.045) 1px,transparent 1px) 0 0/44px 44px,
    linear-gradient(90deg,rgba(120,170,255,.045) 1px,transparent 1px) 0 0/44px 44px,
    var(--bg);
  background-attachment:fixed;
}
a{color:var(--cyan);text-decoration:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
main{max-width:760px;margin:0 auto;padding:0 18px}
section{padding:34px 0}
h1{font-size:clamp(2rem,8vw,3rem);line-height:1.12;margin:.2em 0 .4em;letter-spacing:-.02em}
h2{font-size:clamp(1.4rem,5vw,1.9rem);line-height:1.2;margin:.1em 0 .8em}
h3{font-size:1.02rem;margin:0 0 .25em}
p{margin:0 0 1em}
.grad{background:linear-gradient(90deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.tag{color:var(--cyan);font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin:0 0 .5em}

/* top bar */
.top{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;
  padding:12px 18px;padding-top:calc(12px + env(safe-area-inset-top,0px));
  background:rgba(5,8,15,.82);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.logo{font-weight:800;font-size:1.15rem;letter-spacing:.02em}
.logo b{color:var(--cyan);margin-left:.3em;font-weight:700}
.top-call{font-weight:700;font-size:.95rem;padding:8px 12px;border:1px solid var(--line);border-radius:999px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;min-height:48px;padding:0 16px;
  font:700 1rem var(--font);white-space:nowrap;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:12px}
.btn.primary{color:#04121a;border:0;background:linear-gradient(135deg,var(--cyan),var(--blue));box-shadow:0 0 22px rgba(34,211,238,.35)}
.btn.big{display:flex;width:100%;max-width:420px;margin:10px auto 0;min-height:54px;font-size:1.05rem}
.btn:active{transform:scale(.98)}

/* hero */
.hero{padding-top:44px}
.lead{color:var(--muted);font-size:1.08rem;max-width:34em}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 14px}
.cta .btn{flex:1 1 160px}
.demo{display:inline-block;font-weight:600;padding:6px 0}

/* price */
.price{margin:10px 0;padding:28px 22px;text-align:center;background:var(--surface);border:1px solid rgba(34,211,238,.45);border-radius:18px;box-shadow:0 0 30px rgba(34,211,238,.12)}
.amount{font-size:clamp(3rem,16vw,4.5rem);font-weight:800;line-height:1;background:linear-gradient(90deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.once{color:var(--muted);margin:.4em 0 1.2em}
.checks{list-style:none;margin:0;padding:0;text-align:left}
.checks li{position:relative;padding:10px 0 10px 32px;border-top:1px solid var(--line)}
.checks li::before{content:"\2713";position:absolute;left:4px;top:9px;color:var(--green);font-weight:800}

/* grids and cards */
.grid{display:grid;grid-template-columns:1fr;gap:12px}
.card{padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:14px}
.card p{margin:0;color:var(--muted);font-size:.95rem}

/* perks */
.perk-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.perk-list li{padding:16px 16px 16px 18px;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--cyan);border-radius:12px}

/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.steps li{display:flex;gap:14px;align-items:flex-start;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:14px}
.steps span{flex:none;width:34px;height:34px;display:grid;place-items:center;font-weight:800;color:#04121a;background:linear-gradient(135deg,var(--cyan),var(--blue));border-radius:50%}

/* contact */
.contact{text-align:center;margin:10px 0 20px;padding:34px 20px;background:var(--surface);border:1px solid var(--line);border-radius:18px}
.contact p{color:var(--muted)}

footer{text-align:center;color:var(--muted);font-size:.85rem;padding:10px 18px 30px}

/* sticky contact bar (mobile) */
.bar{position:fixed;left:0;right:0;bottom:0;z-index:6;display:flex;gap:10px;
  padding:10px 14px calc(10px + env(safe-area-inset-bottom,0px));
  background:rgba(5,8,15,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--line)}
.bar .btn{flex:1;min-height:50px}

@media (min-width:640px){
  .grid{grid-template-columns:1fr 1fr}
  .grid .card:last-child:nth-child(odd){grid-column:auto}
}
@media (min-width:900px){
  .bar{display:none}
  body{padding-bottom:0}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn:active{transform:none}}