:root{
  --bg:#ffffff; --band:#f4f6fb; --fg:#0b1220; --muted:#566074; --line:#e4e8f0;
  --accent:#2563eb; --accent-2:#7c3aed; --card:#ffffff;
  --stage-a:#dfe9ff; --stage-b:#f1e9ff; --dark:#0b1220;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);
  font:17px/1.6 Manrope,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.wrap.narrow{max-width:820px}
.row{display:flex;align-items:center;justify-content:space-between;gap:16px}

/* шапка */
.top{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.top .row{height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:20px;color:var(--fg);letter-spacing:-.03em}
.logo:hover{text-decoration:none}
.logo i{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent-2))}
nav{display:flex;gap:26px;font-size:15px;font-weight:600}
nav a{color:var(--muted)}
nav a:hover{color:var(--fg);text-decoration:none}
@media (max-width:760px){ nav{display:none} }

.btn{display:inline-block;padding:14px 26px;border-radius:14px;background:var(--fg);color:#fff;
  font-weight:700;font-size:16px;border:1px solid var(--fg);transition:transform .12s ease,box-shadow .12s ease}
.btn:hover{text-decoration:none;transform:translateY(-1px);box-shadow:0 10px 24px rgba(11,18,32,.18)}
.btn.small{padding:9px 16px;font-size:14px;border-radius:11px}
.btn.ghost{background:transparent;color:var(--fg);border-color:var(--line)}
.btn.light{background:#fff;color:var(--fg);border-color:#fff}

/* первый экран */
.hero{background:radial-gradient(1100px 520px at 85% -10%,var(--stage-b),transparent 60%),
  radial-gradient(900px 480px at 0% 0%,var(--stage-a),transparent 55%);overflow:hidden}
.hero-in{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:center;padding-top:72px}
.pill{display:inline-block;margin:0 0 20px;padding:6px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13.5px;font-weight:700;color:var(--accent)}
h1{margin:0;font-size:clamp(36px,5.4vw,64px);line-height:1.04;letter-spacing:-.04em;font-weight:800}
h1 em{font-style:normal;background:linear-gradient(100deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{margin:22px 0 0;max-width:54ch;font-size:19px;color:var(--muted)}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.under{margin:18px 0 0;font-size:14.5px;color:var(--muted)}
.hero-stage{align-self:end;margin-bottom:-90px}

/* сцена со скриншотом */
.stage{position:relative;border-radius:28px;padding:36px;background:linear-gradient(140deg,var(--stage-a),var(--stage-b));
  display:flex;align-items:center;justify-content:center;min-height:300px}
.stage img{border-radius:16px;box-shadow:0 24px 60px rgba(20,30,70,.22)}
.stage.chatshot img{width:100%;max-width:520px;border:1px solid rgba(255,255,255,.7)}
.stage.phone{padding:40px 36px}
.stage.phone img{width:100%;max-width:300px;border-radius:34px;border:8px solid var(--dark);background:var(--dark)}
.hero .stage{background:none;padding:0;min-height:0}
.hero .stage img{max-width:330px}

/* блоки возможностей */
.feat{padding:104px 0}
.feat.flip{background:var(--band)}
.feat-in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;align-items:center}
.feat.flip .feat-text{order:2}
.kicker{margin:0 0 14px;font-size:13.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.kicker span{display:inline-block;margin-right:10px;color:var(--muted);font-variant-numeric:tabular-nums}
h2{margin:0;font-size:clamp(28px,3.6vw,42px);line-height:1.1;letter-spacing:-.035em;font-weight:800}
.feat-lead{margin:18px 0 0;font-size:18.5px;color:var(--muted);max-width:46ch}
.ticks{list-style:none;margin:24px 0 0;padding:0}
.ticks li{position:relative;padding:10px 0 10px 30px;font-weight:600;font-size:16px;border-top:1px solid var(--line)}
.ticks li:last-child{border-bottom:1px solid var(--line)}
.ticks li::before{content:"";position:absolute;left:3px;top:17px;width:12px;height:6px;border-left:2.5px solid var(--accent);
  border-bottom:2.5px solid var(--accent);transform:rotate(-45deg)}

/* цены */
.band{background:var(--dark);color:#fff;padding:104px 0}
.band h2{margin-bottom:36px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr));max-width:820px}
.card{padding:30px;border-radius:22px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.card.accent{background:#fff;color:var(--fg);border-color:#fff}
.card h3{margin:0;font-size:17px;font-weight:700;opacity:.8}
.price .sum{margin:10px 0 0;font-size:44px;font-weight:800;letter-spacing:-.04em;line-height:1.1}
.price .per{margin:2px 0 0;font-size:14.5px;opacity:.7}
.price ul{list-style:none;margin:22px 0 0;padding:0;font-size:15.5px}
.price li{padding:9px 0;border-top:1px solid rgba(255,255,255,.14)}
.card.accent li{border-top-color:var(--line)}
.note{margin:24px 0 0;font-size:14.5px;opacity:.7;max-width:70ch}
.get{margin-top:36px;max-width:820px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 36px}
.get h3{grid-row:1;margin:0;font-size:17px}
.get p{grid-row:2;margin:0;font-size:15px;opacity:.75}
.get a{color:#fff;text-decoration:underline}
@media (max-width:900px){.get{display:block}.get h3{margin-top:22px}.get p{margin-top:6px}}
.band .note a{color:#fff;text-decoration:underline}

/* вопросы, контакты */
.plain{padding:96px 0 0}
.plain h2{margin-bottom:22px}
details{border-top:1px solid var(--line);padding:18px 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:700;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-weight:500;color:var(--muted);font-size:22px;line-height:1}
details[open] summary::after{content:"–"}
details p{margin:10px 0 0;color:var(--muted);max-width:68ch}
.contacts{padding-bottom:96px}
.contacts p{margin:6px 0;font-size:18px}

.final{background:linear-gradient(120deg,var(--accent),var(--accent-2));color:#fff;padding:88px 0;text-align:center}
.final p{margin:14px auto 28px;max-width:52ch;font-size:18.5px;opacity:.9}

footer{background:var(--dark);color:rgba(255,255,255,.6);padding:32px 0;font-size:14.5px}
footer p{margin:4px 0}
footer a{color:rgba(255,255,255,.85)}

@media (max-width:900px){
  .hero-in,.feat-in{grid-template-columns:1fr;gap:36px}
  .hero-in{padding-top:48px}
  .hero-stage{margin-bottom:-60px;justify-self:center}
  .feat{padding:72px 0}
  .feat.flip .feat-text{order:0}
  .stage{padding:24px;min-height:0}
  .grid,.grid.two{grid-template-columns:1fr}
  .band,.plain{padding-top:72px} .band{padding-bottom:72px}
}

/* документы: оферта, политика */
.doc{max-width:760px;margin:0 auto;padding:40px 24px 72px}
.doc h1{font-size:30px;letter-spacing:-.02em;line-height:1.2}
.doc h2{font-size:19px;margin:32px 0 8px;letter-spacing:-.01em;line-height:1.3}
.doc p,.doc li{font-size:16px}
.doc .muted{color:var(--muted)}
.doc table{border-collapse:collapse;width:100%;margin-top:8px}
.doc td{border:1px solid var(--line);padding:8px 10px;font-size:15.5px;vertical-align:top}
.doc td:first-child{color:var(--muted);width:38%}