:root{
  --bg:#0b1020;
  --card:#0f1733;
  --text:#e8ecff;
  --muted:#b7c0ffcc;
  --border:#2a3565;
  --accent:#6ee7ff;
  --accent2:#a78bfa;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
  --radius:16px;
  --max:1100px;
  --pad:20px;
  font-synthesis-weight:none;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 700px at 20% 0%, rgba(110,231,255,.16), transparent 60%),
              radial-gradient(1000px 650px at 80% 10%, rgba(167,139,250,.16), transparent 60%),
              var(--bg);
  color:var(--text);
  line-height:1.5;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.container{
  width: min(var(--max), calc(100% - 2*var(--pad)));
  margin:0 auto;
}

.header{
  position:sticky; top:0;
  backdrop-filter: blur(10px);
  background: rgba(11,16,32,.65);
  border-bottom: 1px solid rgba(42,53,101,.45);
  z-index:10;
}
.header__row{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
}
.brand{display:flex; gap:10px; align-items:center}
.brand__logo{width:34px;height:34px}
.brand__name{font-weight:700; letter-spacing:.2px}

.nav{display:flex; gap:16px; align-items:center}
.nav a{opacity:.92}
.nav a:hover{opacity:1; text-decoration:underline}

.burger{
  display:none;
  background:transparent;
  border:1px solid rgba(42,53,101,.7);
  color:var(--text);
  padding:8px 10px;
  border-radius:12px;
  cursor:pointer;
}

.hero{padding:56px 0 28px}
.hero__grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:22px;
  align-items:start;
}
.badge{
  display:inline-block;
  padding:6px 10px;
  border: 1px solid rgba(42,53,101,.7);
  border-radius:999px;
  color:var(--muted);
  margin:0 0 10px;
}
h1{font-size: clamp(30px, 4vw, 44px); margin:0 0 10px; line-height:1.1}
.lead{color:var(--muted); font-size: 1.05rem; margin:0 0 18px}

.actions{display:flex; gap:12px; flex-wrap:wrap; margin: 14px 0 18px}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 16px;
  border-radius:14px;
  border:1px solid rgba(42,53,101,.85);
  background: linear-gradient(135deg, rgba(110,231,255,.25), rgba(167,139,250,.25));
  box-shadow: var(--shadow);
  cursor:pointer;
  font-weight:600;
}
.btn--ghost{background:transparent; box-shadow:none}
.btn--small{padding:10px 12px; border-radius:12px}

.card{
  background: rgba(15,23,51,.75);
  border:1px solid rgba(42,53,101,.75);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:18px;
}

.stats{display:flex; gap:10px; flex-wrap:wrap}
.stat{
  border:1px solid rgba(42,53,101,.65);
  border-radius: 14px;
  padding:10px 12px;
  min-width: 140px;
  background: rgba(15,23,51,.45);
}
.stat__num{font-weight:800}
.stat__label{color:var(--muted); font-size:.9rem}

.checklist{margin:10px 0 0; padding-left:18px}
.checklist li{margin:6px 0}
.divider{height:1px; background:rgba(42,53,101,.7); margin:16px 0}
.muted{color:var(--muted)}
.tag{
  display:inline-block; margin-top:10px; padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(42,53,101,.65);
  color:var(--muted);
  background: rgba(0,0,0,.12);
}

.section{padding:34px 0}
.section--alt{
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0));
  border-top:1px solid rgba(42,53,101,.25);
  border-bottom:1px solid rgba(42,53,101,.25);
}
h2{margin:0 0 8px; font-size: 1.6rem}

.grid3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
  margin-top:14px;
}
.steps{
  list-style:none;
  padding:0;
  margin:14px 0 0;
  display:grid;
  gap:10px;
}
.steps li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:14px;
  border:1px solid rgba(42,53,101,.65);
  border-radius:14px;
  background: rgba(15,23,51,.45);
}
.steps__n{
  width:28px; height:28px;
  display:inline-flex; align-items:center; justify-content:center;
  border-radius:10px;
  border:1px solid rgba(42,53,101,.7);
  color: var(--accent);
  font-weight:800;
}

.plan ul{margin:10px 0 14px; padding-left:18px}
.price{font-size:1.3rem; margin:.25rem 0 0; color:var(--accent)}
.plan--featured{outline:2px solid rgba(110,231,255,.25)}

.contact{
  display:grid;
  grid-template-columns: 1fr .9fr;
  gap:14px;
  margin-top:14px;
}
.form label{display:block; margin:10px 0}
input, textarea{
  width:100%;
  margin-top:6px;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid rgba(42,53,101,.75);
  background: rgba(0,0,0,.18);
  color: var(--text);
  outline:none;
}
input:focus, textarea:focus{border-color: rgba(110,231,255,.6)}
.kv{display:grid; gap:8px}

.footer{
  padding:22px 0 30px;
  border-top:1px solid rgba(42,53,101,.45);
}
.footer__row{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}

@media (max-width: 900px){
  .hero__grid{grid-template-columns:1fr}
  .grid3{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
  .nav{display:none}
  .burger{display:inline-flex}
  .nav.is-open{
    display:flex;
    position:absolute;
    top:58px;
    right: var(--pad);
    flex-direction:column;
    gap:10px;
    background: rgba(11,16,32,.95);
    border:1px solid rgba(42,53,101,.75);
    border-radius: 14px;
    padding:12px;
  }
}