*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0a0618;--bg-2:#12082b;
  --purple:#8b5cf6;--purple-2:#a855f7;--blue:#3b82f6;--cyan:#06b6d4;
  --text:#e9e6ff;--muted:#a29bc4;--border:rgba(139,92,246,.2);
}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none}

/* BG */
.bg-glow{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.glow{position:absolute;border-radius:50%;filter:blur(120px);opacity:.55;animation:float 18s ease-in-out infinite}
.glow.g1{width:600px;height:600px;background:var(--purple);top:-200px;left:-150px}
.glow.g2{width:500px;height:500px;background:var(--blue);top:20%;right:-180px;animation-delay:-6s}
.glow.g3{width:450px;height:450px;background:var(--purple-2);bottom:-150px;left:30%;animation-delay:-12s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(60px,-40px) scale(1.15)}}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:18px 40px;
  display:flex;justify-content:space-between;align-items:center;
  background:rgba(10,6,24,.6);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);transition:.3s}
nav.scrolled{padding:12px 40px;background:rgba(10,6,24,.85)}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;letter-spacing:-.5px}
.logo-icon{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--purple),var(--blue));
  display:grid;place-items:center;font-size:18px;box-shadow:0 0 20px rgba(139,92,246,.6)}
.logo span.grad,.text-grad{background:linear-gradient(135deg,#c4b5fd,#60a5fa);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;gap:32px;list-style:none}
.nav-links a{color:var(--muted);font-weight:500;font-size:15px;transition:.3s;position:relative}
.nav-links a:hover{color:var(--text)}
.nav-links a::after{content:'';position:absolute;bottom:-6px;left:0;width:0;height:2px;
  background:linear-gradient(90deg,var(--purple),var(--blue));transition:.3s;border-radius:2px}
.nav-links a:hover::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:16px}
.nav-login{color:var(--muted);font-size:14px;font-weight:500;transition:.3s}
.nav-login:hover{color:var(--text)}
.nav-cta{padding:10px 22px;border-radius:10px;background:linear-gradient(135deg,var(--purple),var(--blue));
  color:#fff;font-weight:600;font-size:14px;box-shadow:0 4px 20px rgba(139,92,246,.4);transition:.3s}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(139,92,246,.7)}
.burger{display:none;background:none;color:var(--text);font-size:24px}

/* HERO */
.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  align-items:center;text-align:center;padding:120px 20px 80px}
.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:30px;
  background:rgba(139,92,246,.1);border:1px solid rgba(139,92,246,.3);
  font-size:13px;color:#c4b5fd;margin-bottom:30px;animation:fadeUp .8s ease}
.badge .dot{width:8px;height:8px;border-radius:50%;background:#10b981;
  box-shadow:0 0 10px #10b981;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{font-size:clamp(42px,7vw,82px);font-weight:800;line-height:1.05;
  letter-spacing:-2px;max-width:1000px;margin-bottom:24px;animation:fadeUp .8s ease .1s backwards}
.hero h1 .grad{background:linear-gradient(135deg,#a78bfa 0%,#60a5fa 50%,#22d3ee 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-size:200% auto;animation:shine 4s linear infinite}
@keyframes shine{to{background-position:200% center}}
.hero p{font-size:clamp(16px,2vw,20px);color:var(--muted);max-width:640px;
  margin-bottom:40px;animation:fadeUp .8s ease .2s backwards}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;animation:fadeUp .8s ease .3s backwards}
.btn-primary{padding:16px 36px;border-radius:12px;background:linear-gradient(135deg,var(--purple),var(--blue));
  color:#fff;font-weight:700;font-size:16px;box-shadow:0 8px 30px rgba(139,92,246,.5);
  transition:.3s;display:inline-flex;align-items:center;gap:8px}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(139,92,246,.8)}
.btn-secondary{padding:16px 36px;border-radius:12px;background:rgba(255,255,255,.04);
  color:var(--text);font-weight:600;font-size:16px;border:1px solid rgba(139,92,246,.3);
  transition:.3s;backdrop-filter:blur(10px)}
.btn-secondary:hover{background:rgba(139,92,246,.15);border-color:rgba(139,92,246,.6)}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

.stats{display:flex;gap:60px;flex-wrap:wrap;justify-content:center;margin-top:80px;animation:fadeUp .8s ease .5s backwards}
.stat h3{font-size:42px;font-weight:800;background:linear-gradient(135deg,#c4b5fd,#60a5fa);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stat p{color:var(--muted);font-size:14px}
.scroll-hint{margin-top:60px;color:var(--muted);font-size:13px;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

/* SECTIONS */
section{padding:100px 20px;position:relative}
.container{max-width:1200px;margin:0 auto}
.section-title{text-align:center;font-size:clamp(32px,5vw,52px);font-weight:800;letter-spacing:-1.5px;margin-bottom:16px}
.section-sub{text-align:center;color:var(--muted);font-size:18px;margin-bottom:60px;
  max-width:600px;margin-left:auto;margin-right:auto}

/* REVEAL */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* FEATURES */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.feature{padding:32px;border-radius:20px;background:linear-gradient(145deg,rgba(139,92,246,.08),rgba(59,130,246,.04));
  border:1px solid var(--border);transition:.4s;position:relative;overflow:hidden}
.feature::before{content:'';position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,transparent,var(--purple),var(--blue),transparent);opacity:0;transition:.4s}
.feature:hover{transform:translateY(-6px);border-color:rgba(139,92,246,.5);box-shadow:0 20px 50px rgba(139,92,246,.2)}
.feature:hover::before{opacity:1}
.feature-icon{width:56px;height:56px;border-radius:14px;
  background:linear-gradient(135deg,rgba(139,92,246,.25),rgba(59,130,246,.25));
  border:1px solid rgba(139,92,246,.3);display:grid;place-items:center;font-size:26px;margin-bottom:20px}
.feature h3{font-size:20px;margin-bottom:12px;font-weight:700}
.feature p{color:var(--muted);font-size:15px}

/* PRICING */
.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.plan{padding:40px 32px;border-radius:24px;background:linear-gradient(160deg,rgba(20,12,40,.9),rgba(10,6,24,.9));
  border:1px solid var(--border);transition:.4s;position:relative}
.plan:hover{transform:translateY(-8px);border-color:rgba(139,92,246,.5);box-shadow:0 25px 60px rgba(139,92,246,.2)}
.plan.featured{background:linear-gradient(160deg,rgba(139,92,246,.15),rgba(59,130,246,.08));
  border-color:rgba(139,92,246,.6);box-shadow:0 20px 60px rgba(139,92,246,.25)}
.plan.featured::before{content:'ПОПУЛЯРНЫЙ';position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  padding:6px 16px;border-radius:20px;background:linear-gradient(135deg,var(--purple),var(--blue));
  font-size:11px;font-weight:800;letter-spacing:1px}
.plan-name{font-size:14px;text-transform:uppercase;letter-spacing:2px;color:#c4b5fd;font-weight:700;margin-bottom:16px}
.plan-price{font-size:48px;font-weight:800;margin-bottom:8px;letter-spacing:-1.5px}
.plan-price span{font-size:16px;font-weight:500;color:var(--muted);letter-spacing:0}
.plan-features{list-style:none;margin:28px 0;display:flex;flex-direction:column;gap:14px}
.plan-features li{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--muted)}
.plan-features li::before{content:'✓';width:22px;height:22px;border-radius:50%;
  background:rgba(139,92,246,.2);color:#a78bfa;display:grid;place-items:center;
  font-size:12px;font-weight:800;flex-shrink:0}
.plan-btn{width:100%;padding:14px;border-radius:12px;border:1px solid rgba(139,92,246,.4);
  background:rgba(139,92,246,.1);color:var(--text);font-weight:700;font-size:15px;
  cursor:pointer;transition:.3s;text-align:center;display:block}
.plan-btn:hover{background:linear-gradient(135deg,var(--purple),var(--blue));border-color:transparent;
  box-shadow:0 8px 25px rgba(139,92,246,.5)}
.plan.featured .plan-btn{background:linear-gradient(135deg,var(--purple),var(--blue));
  border-color:transparent;box-shadow:0 8px 25px rgba(139,92,246,.4)}

/* CALC */
.calc-box{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;padding:40px;
  border-radius:24px;background:linear-gradient(160deg,rgba(21,11,46,.9),rgba(10,6,24,.9));
  border:1px solid var(--border)}
.calc-controls{display:flex;flex-direction:column;gap:24px}
.calc-group label{display:block;font-size:14px;color:var(--muted);margin-bottom:10px}
.calc-group label b{color:var(--text);font-weight:700}
.calc-group input[type=range]{width:100%;-webkit-appearance:none;height:6px;border-radius:3px;
  background:linear-gradient(90deg,var(--purple),var(--blue));outline:none}
.calc-group input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;
  border-radius:50%;background:#fff;box-shadow:0 0 10px rgba(139,92,246,.8);cursor:pointer}
.calc-group select{width:100%;padding:12px 14px;border-radius:10px;background:rgba(139,92,246,.05);
  border:1px solid var(--border);color:var(--text);font-family:inherit;font-size:14px}
.calc-result{padding:32px;border-radius:18px;
  background:linear-gradient(160deg,rgba(139,92,246,.15),rgba(59,130,246,.08));
  border:1px solid rgba(139,92,246,.4);display:flex;flex-direction:column;gap:12px}
.calc-label{color:var(--muted);font-size:14px}
.calc-price{font-size:52px;font-weight:800;letter-spacing:-2px;
  background:linear-gradient(135deg,#c4b5fd,#60a5fa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.calc-hint{color:var(--muted);font-size:13px;margin-bottom:auto}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:linear-gradient(160deg,rgba(21,11,46,.9),rgba(10,6,24,.9));
  border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:.3s}
.faq-item.open{border-color:rgba(139,92,246,.5)}
.faq-q{width:100%;padding:20px 24px;background:none;border:none;color:var(--text);
  font-size:16px;font-weight:600;text-align:left;display:flex;justify-content:space-between;
  align-items:center;transition:.3s}
.faq-q span{font-size:22px;color:#a78bfa;transition:.3s}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a p{padding:0 24px 20px;color:var(--muted);font-size:15px}
.faq-item.open .faq-a{max-height:200px}

/* CTA */
.cta-box{padding:70px 40px;border-radius:32px;text-align:center;
  background:linear-gradient(135deg,rgba(139,92,246,.15),rgba(59,130,246,.1));
  border:1px solid rgba(139,92,246,.3);position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 30% 50%,rgba(139,92,246,.2),transparent 60%);pointer-events:none}
.cta-box h2{font-size:clamp(28px,4vw,44px);margin-bottom:16px;font-weight:800;letter-spacing:-1px;position:relative}
.cta-box p{color:var(--muted);font-size:18px;margin-bottom:32px;position:relative}
.cta-box .btn-primary{position:relative}

/* FOOTER */
footer{padding:60px 20px 40px;border-top:1px solid var(--border);margin-top:40px}
.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:300px}
.footer-col h4{font-size:14px;text-transform:uppercase;letter-spacing:1.5px;color:#c4b5fd;margin-bottom:20px;font-weight:700}
.footer-col a{display:block;color:var(--muted);font-size:14px;margin-bottom:12px;transition:.3s}
.footer-col a:hover{color:var(--text)}
.footer-bottom{max-width:1200px;margin:50px auto 0;padding-top:30px;border-top:1px solid rgba(139,92,246,.1);
  text-align:center;color:var(--muted);font-size:13px}

/* SCROLLBAR */
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--purple),var(--blue));border-radius:10px}

/* RESPONSIVE */
@media(max-width:900px){
  nav{padding:14px 20px}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;
    background:rgba(10,6,24,.98);backdrop-filter:blur(20px);padding:20px;gap:16px;border-bottom:1px solid var(--border)}
  .nav-links.open{display:flex}
  .nav-actions{display:none}
  .burger{display:block}
  .calc-box{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stats{gap:32px}
  .stat h3{font-size:32px}
}
@media(max-width:600px){
  .footer-grid{grid-template-columns:1fr}
  .calc-box{padding:24px}
  .calc-result{padding:24px}
}