/* Главная сервиса. Обычный CSS без сборки; стили только свои (style-src 'self'), шрифты системные. */
:root{--bg:#fff;--alt:#f4f7fb;--text:#0e1b2c;--muted:#56667a;--line:#e1e7ef;--accent:#1d62d6;--accent-dark:#12469f;--on-accent:#fff;--r:16px}
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.lp{background:var(--bg);color:var(--text);font:16px/1.6 system-ui,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--accent)}
.lp-wrap{width:min(1120px,100% - 32px);margin-inline:auto}
.lp-narrow{max-width:760px}
.lp-top{position:sticky;top:0;z-index:5;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.lp-bar{display:flex;align-items:center;gap:20px;min-height:64px}
.lp-brand{font-weight:800;font-size:20px;text-decoration:none;color:var(--text)}
.lp-nav{display:flex;gap:20px;margin-left:auto}
.lp-nav a{color:var(--muted);text-decoration:none;font-size:15px}
.lp-nav a:hover{color:var(--text)}
.lp-btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 24px;border:1px solid var(--accent);border-radius:12px;background:var(--accent);color:var(--on-accent);font-weight:600;font-size:16px;text-decoration:none}
.lp-btn:hover{background:var(--accent-dark);border-color:var(--accent-dark)}
.lp-btn.lp-ghost{background:transparent;color:var(--accent)}
.lp-btn.lp-ghost:hover{background:var(--alt)}
.lp-btn.lp-light{background:#fff;color:var(--accent);border-color:#fff}
.lp-top .lp-btn{padding:8px 16px;font-size:15px}
h1{font-size:clamp(30px,4.6vw,50px);line-height:1.12;letter-spacing:-.02em;margin-bottom:18px}
h2{font-size:clamp(24px,3vw,34px);line-height:1.2;margin-bottom:24px;letter-spacing:-.01em}
h3{font-size:18px;margin-bottom:8px}
.lp-kicker{color:var(--accent);font-weight:700;text-transform:uppercase;font-size:13px;letter-spacing:.08em;margin-bottom:12px}
.lp-lead{color:var(--muted);font-size:18px;margin-bottom:24px;max-width:620px}
.lp-hero{padding:64px 0 56px;background:linear-gradient(180deg,#eef4fe,#fff)}
.lp-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.lp-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:14px}
.lp-note{color:var(--muted);font-size:14px}
.lp-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}
.lp-card p{color:var(--muted)}
.lp-url{font:600 14px/1 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);padding-bottom:14px;margin-bottom:16px;border-bottom:1px solid var(--line)}
.lp-mock{display:flex;flex-direction:column;gap:10px}
.lp-mock b{font-size:22px;line-height:1.2}
.lp-mock span{color:var(--muted)}
.lp-chip{align-self:flex-start;padding:4px 12px;border-radius:99px;background:#e7effd;color:var(--accent)!important;font-size:14px;font-weight:600}
.lp-mock-btn{align-self:flex-start;margin-top:8px;padding:11px 20px;border-radius:12px;background:var(--accent);color:#fff!important;font-weight:600}
.lp-sec{padding:64px 0}
.lp-alt{background:var(--alt)}
.lp-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.lp-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.lp-steps{list-style:none;padding:0}
.lp-num{display:grid;place-items:center;width:36px;height:36px;margin-bottom:14px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700}
.lp-demo{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--text);transition:border-color .15s}
.lp-demo:hover{border-color:var(--accent)}
.lp-demo b{font-size:19px}
.lp-demo span{color:var(--muted);font-size:14px}
.lp-demo em{margin-top:auto;padding-top:10px;color:var(--accent);font-style:normal;font-weight:600}
.lp-q{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:12px}
.lp-q summary{cursor:pointer;font-weight:600}
.lp-q p{margin-top:10px;color:var(--muted)}
.lp-final{background:var(--accent);color:#fff;text-align:center}
.lp-final h2{max-width:640px;margin-inline:auto}
.lp-foot{border-top:1px solid var(--line);padding:8px 0;color:var(--muted);font-size:14px}
.lp-foot .lp-bar{flex-wrap:wrap;gap:8px 20px;min-height:56px}
.lp-foot a{color:var(--muted)}
.lp-foot span{margin-right:auto}
@media (max-width:900px){
  .lp-hero-grid,.lp-grid3{grid-template-columns:1fr}
  .lp-grid4{grid-template-columns:repeat(2,1fr)}
  .lp-nav{display:none}
  .lp-top .lp-btn{margin-left:auto}
}
@media (max-width:520px){
  .lp-grid4{grid-template-columns:1fr}
  .lp-hero{padding:40px 0}
  .lp-sec{padding:44px 0}
  .lp-cta .lp-btn{width:100%}
}