*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--ink:#1d1d1f;--ink2:#424245;--muted:#6e6e73;--line:#d2d2d7;--line2:#e8e8ed;--bg2:#f5f5f7;--accent:#7C5CFC;--accent-h:#6b4ce0;--soft:rgba(124,92,252,.10)}
html{-webkit-font-smoothing:antialiased;scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'SF Pro Text','Inter',system-ui,'Segoe UI',Roboto,sans-serif;background:#fff;color:var(--ink);font-size:17px;line-height:1.6;letter-spacing:-.01em;overflow-x:hidden}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:11px 22px;border-radius:980px;background:var(--accent);color:#fff;font-size:16px;font-weight:500;border:0;cursor:pointer;white-space:nowrap;text-decoration:none}
.btn:hover{background:var(--accent-h);text-decoration:none}
.btn.ghost{background:#fff;color:var(--accent);border:1px solid var(--accent)}

/* шапка */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line2)}
.top-in{display:flex;align-items:center;gap:24px;height:56px}
.logo{font-weight:700;font-size:19px;color:var(--ink);letter-spacing:-.02em}
.logo span{color:var(--accent)}
.logo:hover{text-decoration:none}
.menu{display:flex;gap:22px;margin-left:auto}
.menu a{color:var(--ink2);font-size:15px}
.top-btn{background:var(--accent);color:#fff;border-radius:980px;padding:7px 16px;font-size:14px;font-weight:500}
.top-btn:hover{background:var(--accent-h);text-decoration:none}

/* страница */
.page{padding-top:20px;padding-bottom:40px}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.crumbs span{color:var(--ink2)}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.12;letter-spacing:-.03em;font-weight:700;margin-bottom:16px;max-width:900px}
.lead-p{font-size:20px;line-height:1.5;color:var(--ink2);margin-bottom:26px;max-width:780px}
.meta{font-size:14px;color:var(--muted);margin:-4px 0 20px}
.art{max-width:760px}
.art h2{font-size:clamp(24px,3vw,30px);line-height:1.2;letter-spacing:-.02em;margin:44px 0 14px;scroll-margin-top:72px}
.art h3{font-size:20px;line-height:1.3;margin:28px 0 10px}
.art p{margin:0 0 16px}
.art ul,.art ol{margin:0 0 18px 22px}
.art li{margin:0 0 8px}
.art strong{font-weight:600}
.note{background:var(--soft);border-left:3px solid var(--accent);border-radius:10px;padding:14px 18px;margin:20px 0}
.tbl{overflow-x:auto;margin:18px 0 22px;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:15px;min-width:480px}
th,td{border-bottom:1px solid var(--line2);padding:10px 12px;text-align:left;vertical-align:top}
th{background:var(--bg2);font-weight:600}
.toc{background:var(--bg2);border-radius:16px;padding:18px 22px;margin:8px 0 28px}
.toc-h{font-weight:600;margin-bottom:8px}
.toc ol{margin:0 0 0 20px;font-size:15px}
.toc li{margin:4px 0}
.cta-mid{display:flex;align-items:center;justify-content:space-between;gap:18px;background:var(--dark,#0f0f16);color:#fff;border-radius:18px;padding:20px 24px;margin:32px 0}
.cta-mid b{display:block;font-size:18px}
.cta-mid span{color:#c7c7cc;font-size:15px}
.faq{margin-top:44px}
.faq h2{margin-bottom:12px}
details{border-bottom:1px solid var(--line2);padding:14px 0}
summary{cursor:pointer;font-weight:600;font-size:18px;list-style:none;position:relative;padding-right:28px}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';position:absolute;right:4px;top:-2px;font-size:24px;color:var(--accent);font-weight:400}
details[open] summary::after{content:'−'}
details div{padding-top:10px;color:var(--ink2)}
details div p{margin:0 0 10px}

/* карточки хабов и «читайте также» */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin:10px 0 30px}
.card{display:flex;flex-direction:column;gap:8px;border:1px solid var(--line2);border-radius:18px;padding:20px;color:var(--ink);transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-2px)}
.card-t{font-weight:600;font-size:18px;line-height:1.3}
.card-d{font-size:15px;color:var(--muted);line-height:1.45}
.rel{padding:10px 0 30px}
.rel h2{font-size:26px;margin:0 0 10px}

/* форма */
.lead{background:var(--bg2);padding:56px 0;margin-top:20px}
.lead-in{max-width:1100px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:start}
.lead-in>*{min-width:0}
.lead-k{color:var(--accent);font-weight:600;font-size:14px;margin-bottom:8px}
.lead-h{font-size:clamp(26px,3.4vw,36px);line-height:1.15;letter-spacing:-.025em;margin-bottom:14px}
.lead-txt p{color:var(--ink2);margin-bottom:14px}
.lead-txt ul{margin-left:20px;color:var(--ink2)}
.lead-card{position:relative;background:#fff;border-radius:22px;padding:24px;box-shadow:0 10px 40px rgba(0,0,0,.06)}
.lead-form{display:flex;flex-direction:column;gap:12px}
.lead-form label{display:flex;flex-direction:column;gap:5px;font-size:14px;color:var(--muted)}
.lead-form input[type=text],.lead-form input[type=tel],.lead-form select{font:inherit;font-size:16px;color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:11px 13px;background:#fff;width:100%}
.lead-form input:focus,.lead-form select:focus{outline:2px solid var(--soft);border-color:var(--accent)}
.lead-consent{display:flex;flex-direction:row;align-items:flex-start;gap:8px;font-size:13px;color:var(--muted)}
.lead-consent.err,.contact-hint.err{color:#d22f2f}
.contact-hint{font-size:13px;color:var(--muted);margin-top:-4px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.lead-success{display:none;text-align:center;padding:20px 4px}
.lead-success.on{display:block}
.ls-t{font-size:20px;font-weight:700;margin-bottom:8px}
.ls-d{color:var(--ink2);margin-bottom:16px;line-height:1.5}
.lead-trust{font-size:12px;color:var(--muted);text-align:center;line-height:1.4}
.lead-bot-block{margin-top:16px;padding-top:16px;border-top:1px solid var(--line2);text-align:center}
.lead-or{font-size:12px;color:var(--muted);margin-bottom:10px;text-transform:uppercase;letter-spacing:.04em}
.lead-bot-btn{width:100%}

/* ранний CTA на горячих страницах (услуги/ниши), сразу после вступления */
.early-cta{display:flex;gap:10px;flex-wrap:wrap;margin:6px 0 32px}

/* exit-intent попап */
.exit-pop{display:none;position:fixed;inset:0;z-index:80;background:rgba(15,15,22,.55);align-items:center;justify-content:center;padding:20px}
.exit-pop.on{display:flex}
.exit-box{position:relative;background:#fff;border-radius:22px;padding:32px 28px;max-width:380px;width:100%;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.exit-close{position:absolute;top:12px;right:14px;background:none;border:0;font-size:26px;line-height:1;color:var(--muted);cursor:pointer;padding:4px 8px}
.exit-k{color:var(--accent);font-weight:600;font-size:13px;margin-bottom:8px}
.exit-t{font-size:19px;font-weight:700;line-height:1.3;margin-bottom:18px}
.exit-box .exit-cta{display:block;width:100%;margin-bottom:10px}
.exit-box .exit-cta:last-child{margin-bottom:0}

/* подвал */
.foot{border-top:1px solid var(--line2);padding:40px 0 90px;font-size:14px;color:var(--muted);margin-top:30px}
.f-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;margin-bottom:30px}
.f-cols a{display:block;color:var(--ink2);margin:6px 0;line-height:1.35}
.f-h a{font-weight:600;color:var(--ink)}
.f-bot{display:flex;flex-direction:column;gap:12px}
.f-bot p{margin:4px 0}
.f-bot a{color:var(--ink2)}
.legal{font-size:12px}
.sticky-cta{display:none}

@media (max-width:820px){
  .menu{display:none}
  .top-btn{margin-left:auto}
  .lead-in{grid-template-columns:1fr;gap:24px}
  .cta-mid{flex-direction:column;align-items:flex-start}
  .lead-p{font-size:18px}
  .sticky-cta{display:flex;gap:8px;position:fixed;left:0;right:0;bottom:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.94);border-top:1px solid var(--line2);z-index:60;backdrop-filter:blur(12px)}
  .sticky-cta .btn{flex:1}
}

/* калькуляторы */
.calc{display:grid;grid-template-columns:1fr 1fr;gap:20px;background:var(--bg2);border-radius:22px;padding:22px;margin:24px 0 32px}
.calc-in{display:flex;flex-direction:column;gap:12px}
.calc-in label{display:flex;flex-direction:column;gap:5px;font-size:14px;color:var(--ink2);font-weight:500}
.calc-hint{font-weight:400;color:var(--muted);font-size:12px}
.calc-in input,.calc-in select{font:inherit;font-size:16px;border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:#fff;color:var(--ink);width:100%}
.calc-out{background:#fff;border-radius:18px;padding:18px;display:flex;flex-direction:column;gap:2px}
.calc-fmt{font-size:14px;color:var(--accent);font-weight:600;margin-bottom:8px}
.calc-row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid var(--line2);font-size:15px}
.calc-row b{white-space:nowrap}
.calc-total{font-size:17px}
.calc-total b{color:var(--accent)}
.calc-note{font-size:13px;color:var(--muted);margin:10px 0 14px}
@media (max-width:820px){.calc{grid-template-columns:1fr;padding:16px}}