:root{
  --bg:#0a0d16; --bg2:#0e1220; --panel:#141a2b; --panel2:#1a2136; --line:#26304a;
  --tx:#eaedf7; --mut:#9aa5c0; --acc:#5b8cff; --acc2:#8b5bff; --ok:#37d67a;
  --radius:16px; --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--tx);
  font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Golos Text",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.container.narrow{max-width:820px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:var(--acc);color:#fff;padding:8px 12px;border-radius:8px;z-index:100}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:12px;padding:13px 22px;font-weight:600;font-size:16px;line-height:1;
  border:1px solid transparent;transition:.18s ease;cursor:pointer}
.btn-sm{padding:10px 16px;font-size:14.5px;border-radius:10px}
.btn-lg{padding:16px 28px;font-size:17px}
.btn-primary{background:linear-gradient(135deg,var(--acc),var(--acc2));color:#fff;
  box-shadow:0 8px 26px -10px rgba(91,140,255,.7)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 30px -10px rgba(91,140,255,.85)}
.btn-ghost{border-color:var(--line);color:var(--tx);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--acc);color:#fff}

/* navbar */
.navbar{position:sticky;top:0;z-index:50;background:rgba(10,13,22,.82);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.navbar-inner{display:flex;align-items:center;gap:22px;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em;cursor:pointer}
.logo-mark{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;
  border-radius:9px;background:linear-gradient(135deg,var(--acc),var(--acc2));color:#fff;font-size:13px}
.nav-links{display:flex;gap:20px;margin-left:auto;font-size:15px;color:var(--mut)}
.nav-links a:hover{color:var(--tx)}
.navbar .btn{margin-left:6px}

/* hero */
.hero{position:relative;padding:70px 0 40px;overflow:hidden}
.hero:before{content:"";position:absolute;inset:-30% 40% 40% -10%;
  background:radial-gradient(closest-side,rgba(91,140,255,.20),transparent 70%);z-index:0}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;
  color:var(--acc);margin:0 0 14px}
h1{font-size:46px;line-height:1.08;letter-spacing:-.02em;margin:0 0 16px;font-weight:800}
.lead{font-size:19px;color:var(--muted-fallback,#c3cbdf);max-width:560px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 22px}
.hero-points{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.hero-points li{padding-left:26px;position:relative;color:var(--mut);font-size:15px}
.hero-points li:before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:800}

/* phone mock */
.hero-visual{display:flex;justify-content:center}
.phone{width:290px;height:560px;border-radius:38px;background:var(--panel);
  border:1px solid var(--line);box-shadow:0 40px 80px -30px rgba(0,0,0,.8);position:relative;padding:14px}
.phone-notch{position:absolute;top:14px;left:50%;transform:translateX(-50%);width:110px;height:20px;
  background:#000;border-radius:0 0 14px 14px;opacity:.6}
.phone-screen{height:100%;border-radius:26px;background:linear-gradient(180deg,#0c1020,#111730);
  padding:34px 16px 16px;display:flex;flex-direction:column;gap:10px;overflow:hidden}
.ph-step{font-size:12px;color:var(--mut);letter-spacing:.04em;text-transform:uppercase}
.ph-card{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:13px 14px;
  font-size:14px;line-height:1.4}
.ph-card.alt{border-color:var(--acc);background:rgba(91,140,255,.12)}
.ph-bar{margin-top:auto;height:6px;border-radius:6px;background:#1c2540;overflow:hidden}
.ph-bar span{display:block;height:100%;width:62%;background:linear-gradient(90deg,var(--acc),var(--acc2))}
.ph-hint{font-size:12px;color:var(--mut);text-align:center}

/* sections */
.section{padding:66px 0}
.section-alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:31px;line-height:1.2;letter-spacing:-.01em;margin:0 0 12px;font-weight:800}
.section-lead{color:var(--mut);font-size:17px;max-width:660px;margin:0 0 30px}
.grid{display:grid;gap:18px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{margin:10px 0 8px;font-size:18px}
.card p{margin:0;color:var(--mut);font-size:15px}
.num{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:10px;
  background:linear-gradient(135deg,var(--acc),var(--acc2));color:#fff;font-weight:800;font-size:15px}

/* faq */
.faq{display:grid;gap:10px}
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
details[open]{border-color:#31406a}
summary{cursor:pointer;font-weight:600;font-size:16.5px;list-style:none}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";float:right;color:var(--acc);font-weight:800}
details[open] summary:after{content:"–"}
details p{margin:12px 0 0;color:var(--mut);font-size:15px}

/* cta */
.cta-section{background:linear-gradient(180deg,var(--bg2),var(--bg))}
.cta-inner{text-align:center}
.cta-inner h2{margin-bottom:14px}
.cta-inner p{color:var(--mut);font-size:17px;max-width:620px;margin:0 auto 26px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-note{margin-top:18px;font-size:15px}
.cta-note a{color:var(--acc)}

/* footer */
.footer{border-top:1px solid var(--line);padding:48px 0 26px;background:var(--bg2)}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.footer-col h4{margin:0 0 12px;font-size:14px;letter-spacing:.04em;text-transform:uppercase;color:var(--mut)}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:9px;font-size:15px}
.footer-col a:hover{color:var(--acc)}
.logo-footer{margin-bottom:12px}
.muted{color:var(--mut);font-size:14px;margin:0}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:34px;padding-top:20px;border-top:1px solid var(--line);font-size:13.5px;color:var(--mut)}
.footer-bottom a{color:var(--acc)}

@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero-visual{order:-1}
  .phone{width:250px;height:470px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  h1{font-size:33px}
  h2{font-size:25px}
  .nav-links{display:none}
  .grid-4,.grid-3{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .section{padding:48px 0}
}