:root{
  --ink:#15122a;
  --ink-soft:#4c4668;
  --orange:#ff6a2b;
  --violet:#6c2ce2;
  --cyan:#12c8d6;
  --bg:#fdfbff;
  --card:#ffffff;
  --line:#eae3f8;
  --shadow:0 18px 40px rgba(43,20,90,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.75;font-size:17px;
}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}
p{margin:0 0 18px}
a{color:var(--violet);text-decoration:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(253,251,255,.9);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:14px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.24rem;color:var(--ink)}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;color:#fff;font-weight:800;
  background:linear-gradient(135deg,var(--orange),var(--violet));
  box-shadow:0 6px 16px rgba(108,44,226,.35);transition:transform .4s ease;
}
.logo:hover .logo-mark{transform:rotate(-12deg) scale(1.08)}
.nav{display:flex;gap:6px;flex-wrap:wrap}
.nav a{
  padding:8px 13px;border-radius:999px;color:var(--ink-soft);font-weight:600;font-size:.94rem;
  transition:color .3s ease,background .3s ease;
}
.nav a:hover{color:#fff;background:linear-gradient(135deg,var(--violet),var(--orange))}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:26px;height:3px;margin:5px 0;border-radius:3px;background:var(--ink);transition:.35s}
.burger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:78px 0 66px;
  background:
    radial-gradient(900px 420px at 8% 0%,rgba(255,106,43,.20),transparent 60%),
    radial-gradient(760px 420px at 92% 12%,rgba(18,200,214,.20),transparent 62%),
    linear-gradient(160deg,#f6f0ff,#fff8f3);
}
.hero:before{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-180px;border-radius:50%;
  background:linear-gradient(135deg,rgba(108,44,226,.22),rgba(255,106,43,.16));
  animation:float 13s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(38px) scale(1.06)}}
.hero-inner{position:relative;z-index:2}
.badge{
  display:inline-block;background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 16px;font-size:.85rem;font-weight:600;color:var(--ink-soft);box-shadow:var(--shadow);
  animation:fadeUp .8s ease both;
}
h1{
  font-size:clamp(2rem,5.2vw,3.15rem);line-height:1.18;margin:18px 0 20px;letter-spacing:-.5px;
  background:linear-gradient(100deg,var(--ink) 30%,var(--violet) 65%,var(--orange));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:fadeUp .9s .1s ease both;
}
.lead{max-width:840px;font-size:1.07rem;color:var(--ink-soft)}
.hero-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.hcard{
  background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;
  box-shadow:var(--shadow);transition:transform .35s ease,box-shadow .35s ease;
}
.hcard:hover{transform:translateY(-7px);box-shadow:0 26px 48px rgba(43,20,90,.16)}
.hcard strong{
  display:block;font-size:1.7rem;background:linear-gradient(135deg,var(--orange),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hcard span{color:var(--ink-soft);font-size:.93rem}

/* ---------- blocks ---------- */
.block{padding:64px 0}
.block.alt{background:linear-gradient(180deg,#fff,#f7f2ff)}
h2{font-size:clamp(1.5rem,3.4vw,2.15rem);line-height:1.28;margin:0 0 20px;padding-left:18px;position:relative}
h2:before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:6px;border-radius:6px;
  background:linear-gradient(180deg,var(--orange),var(--violet));
}
h3{font-size:1.16rem;margin:28px 0 10px;color:var(--violet)}
.block p{max-width:900px;color:#2f2946}

/* ---------- faq ---------- */
.faq details{
  background:var(--card);border:1px solid var(--line);border-radius:16px;margin-bottom:14px;
  padding:4px 20px;box-shadow:0 8px 22px rgba(43,20,90,.06);transition:box-shadow .3s ease,transform .3s ease;
}
.faq details[open]{box-shadow:var(--shadow);transform:translateY(-2px)}
.faq summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:12px;padding:14px 0}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{margin:0;color:var(--ink);font-size:1.03rem}
.faq summary:before{
  content:"+";flex:0 0 28px;height:28px;border-radius:9px;display:grid;place-items:center;color:#fff;font-weight:700;
  background:linear-gradient(135deg,var(--violet),var(--cyan));transition:transform .35s ease;
}
.faq details[open] summary:before{content:"–";transform:rotate(180deg)}
.faq details p{margin:0 0 16px;color:var(--ink-soft)}

/* ---------- footer ---------- */
.site-footer{background:#130f24;color:#d6d0e7;padding:52px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr .9fr 1.2fr;gap:30px}
.site-footer h3{color:#fff;margin-top:0}
.footer-logo{color:#fff;margin-bottom:12px}
.footer-logo .logo-text{color:#fff}
.plain{list-style:none;padding:0;margin:0 0 12px}
.plain li{
  padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.14);font-weight:600;color:#ffb493;
  transition:padding-left .3s ease,color .3s ease;
}
.plain li:hover{padding-left:8px;color:var(--cyan)}
.small{font-size:.88rem;color:#9c94b8}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:16px;font-size:.86rem;color:#9a92b5}

/* ---------- animations ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---------- mobile ---------- */
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-cards{grid-template-columns:1fr}
}
@media (max-width:760px){
  .burger{display:block}
  .nav{
    position:absolute;left:0;right:0;top:70px;flex-direction:column;gap:0;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);
    max-height:0;overflow:hidden;transition:max-height .45s ease;
  }
  .nav.open{max-height:420px}
  .nav a{padding:14px 22px;border-radius:0;border-bottom:1px solid var(--line)}
  .hero{padding:52px 0 46px}
  .block{padding:46px 0}
  body{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
}