/* OptimaZone — фирменная система. Светлая финтех-тема: синий #1E4A81 +
   коралловый CTA + Manrope. Ноль внешних запросов. */

:root{
  --blue:#1E4A81;        /* основной бренд */
  --blue-d:#163a68;      /* тёмный синий (hover, футер) */
  --blue-dd:#102a4d;     /* очень тёмный (hero-градиент) */
  --sky:#8BD4F5;         /* светло-голубой акцент */
  --sky-soft:#e7f4fc;    /* бледно-голубой фон-плашка */
  --coral:#FF8562;       /* CTA */
  --coral-d:#f95d51;     /* CTA hover */
  --ink:#1b2733;         /* заголовки */
  --ink-2:#48566a;       /* основной текст */
  --ink-3:#7a8699;       /* второстепенный */
  --line:#e4e9f0;        /* границы */
  --bg:#ffffff;
  --bg-2:#f5f7fa;        /* секции-чередование */
  --bg-3:#eef2f7;
  --radius:14px;
  --radius-s:10px;
  --pad:clamp(20px,5vw,40px);
  --sans:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --shadow:0 1px 2px rgba(16,42,77,.04),0 8px 24px rgba(16,42,77,.06);
  --shadow-l:0 4px 12px rgba(16,42,77,.08),0 20px 48px rgba(16,42,77,.10);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.6;color:var(--ink-2);
  background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--coral-d)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.1;letter-spacing:-.02em}
h1{font-size:clamp(34px,5.5vw,60px)}
h2{font-size:clamp(27px,3.8vw,42px)}
h3{font-size:clamp(19px,2vw,23px);font-weight:700}
h4{font-size:16px;font-weight:700}
p{margin:0 0 16px}
.wrap{max-width:1180px;margin:0 auto;padding:0 var(--pad)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--blue);margin-bottom:16px}
.lead{font-size:clamp(17px,1.6vw,20px);color:var(--ink-2);line-height:1.55;max-width:60ch}
.muted{color:var(--ink-3)}
section{padding:clamp(56px,8vw,96px) 0}
.sec-head{max-width:64ch;margin:0 auto clamp(36px,5vw,60px);text-align:center}
.sec-head.left{margin-left:0;text-align:left}
.sec-head p{margin-top:14px}
.center{text-align:center}

/* ------- utility bar + header ------- */
.util{background:var(--blue-dd);color:#cfe0f0;font-size:13px}
.util__in{display:flex;justify-content:space-between;gap:16px;padding:8px 0;flex-wrap:wrap}
.util a{color:#fff}
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--line)}
.hdr__in{display:flex;align-items:center;gap:24px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;
  color:var(--blue);letter-spacing:-.02em}
.brand:hover{color:var(--blue)}
.brand__z{color:var(--coral)}
.nav{display:flex;gap:26px;margin-left:auto;align-items:center}
.nav a{color:var(--ink-2);font-size:15px;font-weight:600}
.nav a:hover,.nav a.is-on{color:var(--blue)}
.hdr__cta{margin-left:8px}
.burger{display:none;margin-left:auto;background:none;border:0;font-size:24px;color:var(--blue);cursor:pointer}

/* ------- buttons ------- */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--coral);color:#fff;
  padding:14px 26px;border-radius:100px;font-weight:700;font-size:15px;border:0;cursor:pointer;
  transition:background .2s,transform .2s,box-shadow .2s;box-shadow:0 6px 16px rgba(249,93,81,.28)}
.btn:hover{background:var(--coral-d);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(249,93,81,.34)}
.btn--blue{background:var(--blue);box-shadow:0 6px 16px rgba(30,74,129,.24)}
.btn--blue:hover{background:var(--blue-d);box-shadow:0 10px 22px rgba(30,74,129,.3)}
.btn--line{background:transparent;color:var(--blue);border:1.5px solid var(--line);box-shadow:none}
.btn--line:hover{background:var(--bg-2);color:var(--blue);border-color:var(--sky);transform:none;box-shadow:none}
.btn--ghost{background:rgba(255,255,255,.14);color:#fff;box-shadow:none}
.btn--ghost:hover{background:rgba(255,255,255,.24);color:#fff}
.btns{display:flex;gap:14px;flex-wrap:wrap}

/* ------- hero ------- */
.hero{position:relative;color:#fff;overflow:hidden;
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-dd) 100%)}
.hero__grid{position:absolute;inset:0;opacity:.5;pointer-events:none}
.hero__in{position:relative;padding:clamp(64px,10vw,120px) 0 clamp(56px,8vw,104px)}
.hero .eyebrow{color:var(--sky)}
.hero h1{color:#fff;max-width:16ch}
.hero p{color:#d3e2f2;font-size:clamp(17px,1.8vw,21px);max-width:56ch;margin:22px 0 32px}
.hero .btns{margin-bottom:44px}
.hero__stats{display:flex;gap:clamp(24px,5vw,64px);flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.16);padding-top:30px}
.hero__stat b{display:block;font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.02em}
.hero__stat span{font-size:13px;color:#a9c4de;letter-spacing:.04em}

/* ------- cards / grids ------- */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-l)}
.card h3{margin-bottom:8px}
.card p{margin:0;font-size:15px;color:var(--ink-2)}
.card__ico{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--sky-soft);color:var(--blue);margin-bottom:18px}
.card__ico svg{width:24px;height:24px}
.card__go{display:inline-block;margin-top:16px;font-size:14px;font-weight:700;color:var(--blue)}
.card a.card__go:hover{color:var(--coral-d)}

/* ------- process steps ------- */
.steps{counter-reset:st;display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.step{position:relative;padding:26px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius)}
.step b.num{counter-increment:st;font-size:13px;font-weight:800;color:var(--coral);
  letter-spacing:.1em}
.step b.num::before{content:"0" counter(st)}
.step h3{margin:12px 0 8px;font-size:18px}
.step p{margin:0;font-size:14.5px}

/* ------- packages ------- */
.pkg{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;
  display:flex;flex-direction:column;box-shadow:var(--shadow)}
.pkg--feat{border-color:var(--blue);box-shadow:var(--shadow-l);position:relative}
.pkg--feat::before{content:"Popular";position:absolute;top:-11px;left:26px;background:var(--coral);
  color:#fff;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 12px;border-radius:100px}
.pkg__zone{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.pkg__price{font-size:34px;font-weight:800;color:var(--ink);letter-spacing:-.02em;margin:10px 0 2px}
.pkg__price small{font-size:14px;font-weight:600;color:var(--ink-3)}
.pkg__note{font-size:13px;color:var(--ink-3);margin-bottom:20px}
.pkg ul{list-style:none;margin:0 0 24px;padding:0;flex:1}
.pkg li{position:relative;padding:7px 0 7px 26px;font-size:14.5px;border-bottom:1px solid var(--line)}
.pkg li::before{content:"";position:absolute;left:0;top:13px;width:14px;height:14px;
  background:var(--sky-soft);border-radius:50%}
.pkg li::after{content:"";position:absolute;left:5px;top:16px;width:4px;height:7px;
  border:solid var(--blue);border-width:0 2px 2px 0;transform:rotate(45deg)}
.pkg .btn{justify-content:center}

/* ------- trust logos ------- */
.logos{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:center}
.logos .lg{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-s);
  padding:16px 22px;font-weight:700;color:var(--ink-3);font-size:14px;letter-spacing:.02em}
.badge{display:inline-flex;align-items:center;gap:10px;background:var(--sky-soft);
  border:1px solid #cfe6f6;color:var(--blue-d);border-radius:100px;padding:8px 16px;
  font-size:13.5px;font-weight:600}
.badge svg{width:16px;height:16px}

/* ------- split / feature rows ------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,5vw,64px);align-items:center}
@media(max-width:820px){.split{grid-template-columns:1fr}}
.checklist{list-style:none;margin:22px 0 0;padding:0}
.checklist li{position:relative;padding:9px 0 9px 34px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.checklist li b{color:var(--ink)}
.checklist li::before{content:"";position:absolute;left:0;top:12px;width:20px;height:20px;
  border-radius:50%;background:var(--blue)}
.checklist li::after{content:"";position:absolute;left:7px;top:16px;width:5px;height:9px;
  border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}

/* ------- FAQ ------- */
.faq{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:22px 40px 22px 0;position:relative;
  font-weight:700;color:var(--ink);font-size:17px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:18px;font-size:26px;font-weight:400;
  color:var(--blue);transition:transform .2s}
.faq details[open] summary::after{content:"\2212"}
.faq details p{margin:0 0 22px;color:var(--ink-2);font-size:15.5px;max-width:70ch}

/* ------- CTA band ------- */
.band{background:linear-gradient(135deg,var(--blue) 0%,var(--blue-dd) 100%);color:#fff;
  border-radius:20px;padding:clamp(36px,5vw,60px);text-align:center;margin:0 auto;max-width:960px}
.band h2{color:#fff}.band p{color:#d3e2f2;max-width:52ch;margin:14px auto 28px}
.band .btns{justify-content:center}

/* ------- forms ------- */
.frm{max-width:620px}
.frm label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin:18px 0 7px}
.frm input,.frm select,.frm textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);
  border-radius:var(--radius-s);font-family:inherit;font-size:15px;color:var(--ink);background:var(--bg)}
.frm input:focus,.frm select:focus,.frm textarea:focus{outline:none;border-color:var(--blue)}
.frm textarea{min-height:130px;resize:vertical}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.seg label{margin:0}
.seg input{position:absolute;opacity:0}
.seg span{display:block;text-align:center;padding:14px;border:1.5px solid var(--line);
  border-radius:var(--radius-s);font-weight:600;font-size:14px;cursor:pointer;color:var(--ink-2)}
.seg input:checked+span{border-color:var(--blue);background:var(--sky-soft);color:var(--blue)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ------- footer ------- */
.ftr{background:var(--blue-dd);color:#a9c4de;padding:64px 0 30px;font-size:14.5px}
.ftr__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
@media(max-width:820px){.ftr__grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.ftr__grid{grid-template-columns:1fr}}
.ftr h4{color:#fff;margin-bottom:16px;font-size:14px;letter-spacing:.02em}
.ftr ul{list-style:none;margin:0;padding:0}
.ftr li{margin-bottom:9px}
.ftr a{color:#a9c4de}.ftr a:hover{color:#fff}
.ftr__brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:#fff;margin-bottom:14px}
.ftr__bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#7f9ab5}

/* ------- crumbs ------- */
.crumbs{padding:20px 0 0;font-size:13.5px;color:var(--ink-3)}
.crumbs a{color:var(--ink-3)}.crumbs a:hover{color:var(--blue)}

/* ------- reveal (прогрессивное улучшение: прячем ТОЛЬКО при активном JS,
   иначе контент виден всегда — без JS, при сбое IntersectionObserver, для
   краулеров и скринридеров) ------- */
html.js .rv{opacity:0;transform:translateY(14px);transition:opacity .6s,transform .6s}
html.js .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){html.js .rv{opacity:1;transform:none;transition:none}}

/* ------- responsive nav ------- */
@media(max-width:860px){
  .nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;
    background:#fff;border-bottom:1px solid var(--line);padding:16px var(--pad);gap:4px;align-items:stretch}
  .nav.is-open{display:flex}
  .nav a{padding:10px 0}
  .hdr__cta{display:none}
  .burger{display:block}
}