:root{
  --bg:#0b1220; --bg2:#0f1a2e; --card:#13203a; --line:#22304d;
  --ink:#eaf0fb; --muted:#aebed8; --brand:#3b82f6; --brand2:#22d3ee;
  --accent:#34d399; --warn:#f59e0b; --radius:16px; --maxw:1140px;
  --grad:linear-gradient(135deg,#3b82f6,#22d3ee);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 600px at 80% -10%,#16233f 0,transparent 60%),
             radial-gradient(900px 500px at -10% 10%,#10213c 0,transparent 55%),var(--bg);
  color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;
  padding:13px 22px;border-radius:12px;font-weight:600;font-size:15px;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#06101f;box-shadow:0 8px 30px rgba(34,211,238,.18)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 38px rgba(34,211,238,.28)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:#fff}
.muted{color:var(--muted)}
.tag{display:inline-block;font-size:13px;font-weight:600;color:var(--brand2);
  background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.2);padding:6px 14px;border-radius:999px}

/* NAV */
header.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:rgba(11,18,32,.72);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:21px;letter-spacing:-.5px}
.logo .mark{width:34px;height:34px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;color:#06101f;font-weight:900;font-size:18px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--muted);font-weight:500;font-size:15px;transition:.2s}
.nav-links a:hover{color:#fff}
.nav-cta{display:flex;gap:12px;align-items:center}
.burger{display:none;background:none;border:0;color:#fff;font-size:26px;cursor:pointer}

/* HERO */
.hero{padding:90px 0 70px;text-align:center}
.hero h1{font-size:clamp(34px,6vw,60px);line-height:1.05;font-weight:800;letter-spacing:-1.5px;margin-bottom:20px}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:clamp(16px,2.4vw,20px);color:var(--muted);max-width:640px;margin:0 auto 34px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.trust{margin-top:40px;display:flex;gap:30px;justify-content:center;flex-wrap:wrap;color:var(--muted);font-size:14px}
.trust span{display:flex;align-items:center;gap:8px}

/* SECTION */
section{padding:70px 0}
.sec-head{text-align:center;max-width:620px;margin:0 auto 50px}
.sec-head h2{font-size:clamp(26px,4vw,40px);font-weight:800;letter-spacing:-1px;margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:17px}

/* FEATURES */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
.card:hover{border-color:var(--brand);transform:translateY(-4px)}
.feat .ico{width:46px;height:46px;border-radius:12px;background:rgba(59,130,246,.12);
  display:grid;place-items:center;font-size:22px;margin-bottom:16px}
.feat h3{font-size:18px;margin-bottom:8px}
.feat p{color:var(--muted);font-size:15px}

/* PRICING */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:32px;display:flex;flex-direction:column;position:relative}
.plan.featured{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand),0 20px 60px rgba(59,130,246,.18)}
.plan .pop{position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--grad);color:#06101f;font-size:12px;font-weight:700;padding:5px 14px;border-radius:999px}
.plan h3{font-size:20px;margin-bottom:6px}
.plan .price{font-size:42px;font-weight:800;letter-spacing:-1px;margin:10px 0 2px}
.plan .price small{font-size:15px;font-weight:500;color:var(--muted)}
.plan .per{color:var(--muted);font-size:14px;margin-bottom:22px}
.plan ul{list-style:none;margin:0 0 26px;display:flex;flex-direction:column;gap:12px}
.plan li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#d7e2f5}
.plan li .ck{color:var(--accent);font-weight:800;flex:0 0 auto}
.plan .btn{width:100%;justify-content:center;margin-top:auto}

/* WEBSITE SERVICE */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.split ul{list-style:none;display:flex;flex-direction:column;gap:14px;margin-top:22px}
.split li{display:flex;gap:12px;align-items:flex-start}
.split li .ck{color:var(--brand2);font-weight:800}
.panel{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:30px}
.panel .row{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--line)}
.panel .row:last-child{border-bottom:0}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;position:relative}
.step .n{width:38px;height:38px;border-radius:10px;background:var(--grad);color:#06101f;
  font-weight:800;display:grid;place-items:center;margin-bottom:14px}
.step h4{margin-bottom:6px}
.step p{color:var(--muted);font-size:14px}

/* FAQ */
.faq{max-width:780px;margin:0 auto}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin-bottom:12px}
details summary{cursor:pointer;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--brand2);font-size:22px}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin-top:12px;font-size:15px}

/* CTA band */
.ctaband{background:var(--grad);border-radius:24px;padding:54px;text-align:center;color:#06101f;margin:20px 0}
.ctaband h2{font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:-1px;margin-bottom:12px}
.ctaband p{font-size:18px;opacity:.85;margin-bottom:26px}
.ctaband .btn{background:#06101f;color:#fff}
.ctaband .btn:hover{transform:translateY(-2px)}

/* FOOTER */
footer{border-top:1px solid var(--line);padding:54px 0 30px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:34px;margin-bottom:36px}
.foot-grid h5{font-size:14px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin-bottom:16px}
.foot-grid a{display:block;color:var(--muted);margin-bottom:10px;font-size:15px;transition:.2s}
.foot-grid a:hover{color:#fff}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:12px;color:var(--muted);font-size:14px}

/* PAGE HEADER (inner pages) */
.page-head{padding:70px 0 30px;text-align:center}
.page-head h1{font-size:clamp(30px,5vw,46px);font-weight:800;letter-spacing:-1px;margin-bottom:12px}
.page-head p{color:var(--muted);font-size:18px;max-width:600px;margin:0 auto}
.prose{max-width:780px;margin:0 auto}
.prose h2{font-size:24px;margin:34px 0 12px;font-weight:700}
.prose h3{font-size:19px;margin:24px 0 8px}
.prose p,.prose li{color:#cdd9ee;margin-bottom:12px}
.prose ul{margin:0 0 16px 22px}

/* form */
.form{max-width:620px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:34px}
.form label{display:block;font-size:14px;font-weight:600;margin:16px 0 7px}
.form input,.form textarea,.form select{width:100%;padding:13px 15px;border-radius:11px;
  border:1px solid var(--line);background:#0c1526;color:var(--ink);font-size:15px;font-family:inherit}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--brand)}
.form .btn{margin-top:22px;width:100%;justify-content:center}
.hp{position:absolute;left:-9999px}

@media(max-width:900px){
  .grid-3,.grid-4,.pricing,.steps{grid-template-columns:1fr 1fr}
  .split,.foot-grid{grid-template-columns:1fr}
  .nav-links{display:none}
  .burger{display:block}
  .nav-links.open{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;
    background:var(--bg2);padding:20px 22px;border-bottom:1px solid var(--line);gap:16px}
}
@media(max-width:560px){
  .grid-3,.grid-4,.pricing,.steps{grid-template-columns:1fr}
  .ctaband{padding:36px 24px}
}