:root{
  --bg:#0b0d12;
  --panel:#121521;
  --ink:#e8ecf3;
  --dim:#a9b3c7;
  --pri:#4f7cff;
  --pri-2:#8aa6ff;
  --acc:#22d3ee;
  --ok:#16a34a;
  --rad:18px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial}
a{color:var(--pri);text-decoration:none}
a:hover{color:var(--pri-2)}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{position:sticky;top:0;background:rgba(11,13,18,.7);backdrop-filter:blur(8px);border-bottom:1px solid #151826;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;letter-spacing:.3px}
nav a{margin-left:16px;color:var(--dim)}
nav a.active, nav a:hover{color:var(--ink)}

/* Hero */
.hero{padding:64px 0;background:
  radial-gradient(1200px 600px at 10% -20%, rgba(79,124,255,.22), transparent 60%),
  radial-gradient(900px 500px at 100% 0%, rgba(34,211,238,.12), transparent 60%);}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center}
.hero-text h1{font-size:36px;line-height:1.15;margin:.2em 0 .4em}
.hero-text p{color:var(--dim);max-width:58ch}
.cta-row{margin:18px 0 8px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 18px;border-radius:999px;border:1px solid #243057;box-shadow:var(--shadow);transition:transform .2s ease, box-shadow .2s ease, background .2s ease}
.btn.primary{background:var(--pri);border-color:var(--pri);color:white}
.btn.ghost{background:transparent;color:var(--ink)}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(79,124,255,.35)}
.seo-ru{font-size:16px;margin:8px 0 0;color:var(--dim)}

.mock-phone{width:320px;max-width:100%;margin:0 auto;border-radius:28px;background:var(--panel);padding:14px;border:1px solid #1d2233;box-shadow:var(--shadow);animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.screen{height:540px;border-radius:18px;background:linear-gradient(180deg,#182037,#101423);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;border:1px solid #223;position:relative;overflow:hidden}
.badge{position:absolute;top:14px;left:14px;font-size:12px;padding:6px 10px;border-radius:999px;background:#111d2a;border:1px solid #223;color:var(--acc)}
.screen-title{font-size:22px;font-weight:800}
.screen-sub{color:var(--dim);font-size:14px}
.glow{position:absolute;inset:auto -20% -40% -20%;height:60%;background:radial-gradient(60% 60% at 50% 10%, rgba(79,124,255,.35), transparent 70%);filter:blur(18px)}

/* Sections */
.section{padding:48px 0}
.section .lead{color:var(--dim);max-width:68ch}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.card{background:var(--panel);border:1px solid #1d2233;border-radius:var(--rad);padding:18px;box-shadow:var(--shadow)}
.card h3{margin-top:0}
.tag{display:inline-block;padding:4px 10px;border-radius:999px;border:1px solid #223;background:#0f1320;color:var(--acc);font-size:12px;margin-bottom:8px}

/* Timeline-like steps */
.steps{display:grid;gap:16px}
.step{position:relative;padding-left:48px}
.step:before{content:"";position:absolute;left:16px;top:0;bottom:0;width:2px;background:#1d2233}
.step-num{position:absolute;left:0;top:0;width:32px;height:32px;display:grid;place-items:center;border-radius:10px;background:#111d2a;border:1px solid #223;color:var(--acc);font-weight:700}

/* Testimonials */
.testimonials{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
.quote{background:#0f1320;border:1px solid #1d2233;border-radius:16px;padding:16px}
.quote .author{display:block;color:var(--dim);font-size:13px;margin-top:8px}

/* FAQ */
.faq{display:grid;gap:12px}
.faq details{background:#0f1320;border:1px solid #1d2233;border-radius:14px;padding:14px}
.faq summary{cursor:pointer;font-weight:700}

/* Forms */
.form{display:grid;gap:14px;margin-top:12px}
label{display:grid;gap:6px;font-weight:600}
input,textarea,select{width:100%;padding:12px;border-radius:12px;border:1px solid #222a3d;background:#0f1320;color:var(--ink)}
input:focus,textarea:focus,select:focus{outline:2px solid #2a3f9c;border-color:#2a3f9c}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-weight:400}
.small{color:var(--dim);font-size:12px;margin-top:8px}

/* Footer */
.site-footer{padding:22px 0;border-top:1px solid #151826;background:#0a0c10}
.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* Responsive */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .grid-3{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .testimonials{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .hero-text h1{font-size:28px}
  .grid-3{grid-template-columns:1fr}
  .testimonials{grid-template-columns:1fr}
}