:root{
  --bg:#0b0d1a; --bg2:#0f1226; --card:#151834; --card2:#1a1e40;
  --line:rgba(255,255,255,.08);
  --txt:#eef0fb; --mut:#a6abcf; --mut2:#7c82ad;
  --violet:#7c3aed; --blue:#2563eb; --grad:linear-gradient(135deg,#7c3aed,#2563eb);
  --green:#22c55e; --radius:18px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--txt);font-family:var(--font);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* nav */
header{position:sticky;top:0;z-index:50;background:rgba(11,13,26,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;gap:26px;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px}
.brand img{width:34px;height:34px;border-radius:9px}
nav .links{display:flex;gap:24px;margin-left:14px}
nav .links a{color:var(--mut);font-size:15px;font-weight:500}
nav .links a:hover{color:var(--txt)}
nav .spacer{flex:1}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;
  font-weight:700;font-size:15px;padding:11px 20px;border-radius:12px;font-family:var(--font);transition:.15s}
.btn-primary{background:var(--grad);color:#fff}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--txt);border:1px solid var(--line)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-lg{padding:15px 30px;font-size:17px;border-radius:14px}

/* hero */
.hero{position:relative;overflow:hidden;padding:90px 0 70px}
.hero .glow{position:absolute;inset:0;pointer-events:none}
.hero .glow::before{content:"";position:absolute;width:620px;height:620px;right:-140px;top:-200px;
  background:radial-gradient(circle,rgba(124,58,237,.45),transparent 62%);filter:blur(30px)}
.hero .glow::after{content:"";position:absolute;width:560px;height:560px;left:-160px;bottom:-240px;
  background:radial-gradient(circle,rgba(37,99,235,.4),transparent 62%);filter:blur(30px)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;color:var(--mut);border:1px solid var(--line);padding:7px 13px;border-radius:99px;background:rgba(255,255,255,.03)}
h1{font-size:clamp(36px,5vw,58px);line-height:1.05;font-weight:850;letter-spacing:-.02em;margin:18px 0 16px}
.lead{font-size:19px;color:var(--mut);max-width:520px;margin-bottom:28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-note{margin-top:18px;color:var(--mut2);font-size:14px;display:flex;gap:18px;flex-wrap:wrap}
.hero-note span{display:flex;align-items:center;gap:7px}
.hero-art{display:flex;justify-content:center}
.hero-art img{max-width:100%;border-radius:22px;box-shadow:0 30px 80px rgba(0,0,0,.5);border:1px solid var(--line)}

/* logos strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg2)}
.strip .wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-top:20px;padding-bottom:20px}
.strip b{color:var(--mut2);font-size:13px;letter-spacing:.05em;text-transform:uppercase}
.strip .apps{display:flex;gap:22px;flex-wrap:wrap;color:var(--mut);font-weight:600}

/* sections */
section{padding:78px 0}
.sec-head{text-align:center;max-width:640px;margin:0 auto 46px}
.sec-head h2{font-size:clamp(28px,3.6vw,40px);font-weight:820;letter-spacing:-.02em}
.sec-head p{color:var(--mut);font-size:17px;margin-top:12px}

/* features */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.feat .ic{width:48px;height:48px;border-radius:13px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.feat h3{font-size:19px;font-weight:750;margin-bottom:8px}
.feat p{color:var(--mut);font-size:15px}

/* plans */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;position:relative;display:flex;flex-direction:column}
.plan.pop{border-color:transparent;background:linear-gradient(var(--card),var(--card)) padding-box,var(--grad) border-box;border:1.5px solid transparent}
.plan .badge{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:99px}
.plan h3{font-size:17px;color:var(--mut);font-weight:700}
.price{font-size:40px;font-weight:850;margin:10px 0 2px}
.price small{font-size:15px;color:var(--mut2);font-weight:600}
.plan .dur{color:var(--mut);font-size:14px;margin-bottom:18px}
.plan ul{list-style:none;margin-bottom:22px;display:flex;flex-direction:column;gap:9px}
.plan li{font-size:14px;color:var(--mut);display:flex;gap:9px;align-items:flex-start}
.plan li::before{content:"✓";color:var(--green);font-weight:800}
.plan .btn{width:100%}
.pay-methods{margin-top:auto;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.pay-methods .btn{padding:11px 10px;font-size:14px}

/* activate cta band */
.band{background:linear-gradient(135deg,rgba(124,58,237,.16),rgba(37,99,235,.16));border:1px solid var(--line);border-radius:24px;padding:44px;text-align:center}
.band h2{font-size:clamp(26px,3.4vw,36px);font-weight:820}
.band p{color:var(--mut);font-size:17px;margin:12px auto 24px;max-width:560px}
.code-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;max-width:520px;margin:0 auto}
.code-row input{flex:1;min-width:240px;background:rgba(0,0,0,.35);border:1px solid var(--line);color:var(--txt);
  padding:15px 18px;border-radius:13px;font-size:16px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.05em}
.code-row input:focus{outline:none;border-color:var(--violet)}
#activate-msg{margin-top:16px;font-size:15px;min-height:22px}
.ok{color:var(--green)} .err{color:#f87171}

/* faq */
.faq{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:2px 20px}
summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:650;font-size:16px;display:flex;justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--mut);font-size:22px;font-weight:400}
details[open] summary::after{content:"–"}
details p{color:var(--mut);font-size:15px;padding:0 0 18px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.step .n{width:38px;height:38px;border-radius:11px;background:rgba(124,58,237,.18);color:#c4b5fd;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px}
.step h3{font-size:17px;font-weight:720;margin-bottom:7px}
.step p{color:var(--mut);font-size:14px}

/* footer */
footer{border-top:1px solid var(--line);background:var(--bg2);padding:44px 0;margin-top:20px}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;color:var(--mut2);font-size:14px}
.foot a{color:var(--mut)}
.foot a:hover{color:var(--txt)}
.foot .cols{display:flex;gap:44px;flex-wrap:wrap}
.foot .col{display:flex;flex-direction:column;gap:8px}
.foot .col b{color:var(--txt);font-size:13px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px}

/* планшет / iPad */
@media(max-width:900px){
  .wrap{padding:0 18px}
  section{padding:56px 0}
  .hero{padding:60px 0 50px}
  .hero-grid{grid-template-columns:1fr;gap:28px}.hero-art{order:-1}
  .features,.plans,.steps{grid-template-columns:1fr 1fr}
  nav .links{display:none}
  .sec-head{margin-bottom:34px}
  .band{padding:34px 22px}
}
/* телефон / iPhone */
@media(max-width:600px){
  .wrap{padding:0 16px}
  nav{gap:12px;height:58px}
  .brand{font-size:17px;gap:9px}.brand img{width:30px;height:30px}
  nav .spacer{flex:1}
  /* в шапке на телефоне оставляем одну ключевую кнопку */
  nav > .btn-ghost{display:none}
  .btn{padding:10px 15px;font-size:14px}
  .btn-lg{padding:14px 22px;font-size:16px}
  section{padding:44px 0}
  .hero{padding:40px 0 36px}
  .lead{font-size:17px}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:1;min-width:0}
  .hero-note{gap:12px;font-size:13px}
  .features,.plans,.steps{grid-template-columns:1fr;gap:14px}
  .feat,.step{padding:20px}
  .plan{padding:22px 18px}
  .price{font-size:34px}
  .band{padding:26px 18px;border-radius:20px}
  .code-row{flex-direction:column}
  .code-row input{min-width:0;width:100%}
  .code-row .btn{width:100%}
  .foot{flex-direction:column;gap:20px}
  .foot .cols{gap:28px}
  .sec-head p,.band p{font-size:15px}
}
/* очень узкие экраны */
@media(max-width:360px){
  .pay-methods{grid-template-columns:1fr}
}