:root{
  --bg:#f4f6f9;--card:#fff;--ink:#10151f;--muted:#5b6474;--line:#e2e6ed;
  --accent:#1f5fd1;--accent-ink:#fff;--accent-soft:#e8effd;--star:#f2a900;
  --bad:#c4372b;--bad-soft:#fdeceb;--warn:#a96b00;--warn-soft:#fff4dc;--good:#23794a;--good-soft:#e5f4ec;
  --radius:16px;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0e1117;--card:#161b24;--ink:#e9ecf2;--muted:#9aa3b2;--line:#262e3c;
  --accent:#6b9bff;--accent-ink:#0b1020;--accent-soft:#1a2540;--star:#f5c04a;
  --bad:#ff7b6e;--bad-soft:#3a1d1b;--warn:#f0b54a;--warn-soft:#3a2d12;--good:#5fd396;--good-soft:#173326;
}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 'Onest',system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
img,svg{display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.15;margin:0;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(34px,5.2vw,58px)}
h2{font-size:clamp(26px,3.4vw,38px);margin-bottom:14px}
h3{font-size:19px}
p{margin:0 0 12px}
.muted{color:var(--muted)}
.lead{font-size:clamp(18px,2vw,21px);color:var(--muted);max-width:620px}

/* header */
.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:20px;color:var(--ink);text-decoration:none}
.brand img{width:30px;height:30px}
.nav{display:flex;gap:22px;margin-left:auto}
.nav a{color:var(--muted);text-decoration:none;font-size:15px}
.nav a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:var(--accent-ink);border:0;border-radius:12px;padding:13px 22px;font:600 16px/1 inherit;text-decoration:none;cursor:pointer;transition:transform .15s,filter .15s}
.btn:hover{filter:brightness(1.08)}.btn:active{transform:translateY(1px)}
.btn.small{padding:10px 16px;font-size:15px}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}

/* hero */
.hero{padding:72px 0 56px}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lead{margin:20px 0 28px}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap}
.trust{display:flex;gap:20px;flex-wrap:wrap;margin-top:28px;font-size:14px;color:var(--muted)}
.trust span::before{content:"✓ ";color:var(--good);font-weight:700}

/* sample audit card */
.sample{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:0 20px 50px -30px rgba(16,21,31,.35);position:relative}
.sample .label{position:absolute;top:-12px;left:20px;background:var(--ink);color:var(--bg);font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px}
.sample-head{display:flex;gap:18px;align-items:center;margin-bottom:16px}
.ring{--v:38;--c:var(--bad);width:92px;height:92px;border-radius:50%;flex:none;display:grid;place-items:center;background:conic-gradient(var(--c) calc(var(--v)*1%),var(--line) 0)}
.ring div{width:72px;height:72px;border-radius:50%;background:var(--card);display:grid;place-items:center;text-align:center;line-height:1}
.ring b{font-size:26px}.ring small{display:block;font-size:11px;color:var(--muted);margin-top:3px}
.sample h3{font-size:18px}.sample .addr{font-size:14px;color:var(--muted)}
.mini{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}
.mini div{border:1px solid var(--line);border-radius:10px;padding:8px 10px;font-size:12px;color:var(--muted)}
.mini b{display:block;font-size:19px;color:var(--ink)}
.mini .bad{color:var(--bad)}.mini .warn{color:var(--warn)}
.flag{display:flex;gap:10px;align-items:flex-start;font-size:14px;padding:8px 0;border-top:1px solid var(--line)}
.flag i{font-style:normal;font-size:11px;font-weight:700;padding:2px 7px;border-radius:5px;flex:none;margin-top:2px}
.flag i.h{background:var(--bad-soft);color:var(--bad)}.flag i.m{background:var(--warn-soft);color:var(--warn)}

/* sections */
section.block{padding:64px 0}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:16px;margin:0}
.ico{width:40px;height:40px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;margin-bottom:14px}
.ico svg{width:22px;height:22px}
.section-head{max-width:680px;margin-bottom:28px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
.step{position:relative;padding-top:52px}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:0;left:0;width:38px;height:38px;border-radius:50%;background:var(--ink);color:var(--bg);display:grid;place-items:center;font-weight:700}
.step h3{margin-bottom:6px}.step p{color:var(--muted);font-size:16px}

/* pricing */
.prices{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:stretch}
.price{display:flex;flex-direction:column}
.price.pick{border:2px solid var(--accent);position:relative}
.price.pick::after{content:"Оптимально";position:absolute;top:-12px;right:20px;background:var(--accent);color:var(--accent-ink);font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px}
.amount{font-size:36px;font-weight:700;margin:8px 0 2px}.amount small{font-size:16px;font-weight:400;color:var(--muted)}
.price ul{list-style:none;padding:0;margin:16px 0 22px;flex:1}
.price li{padding:6px 0 6px 26px;position:relative;font-size:15px}
.price li::before{content:"";position:absolute;left:2px;top:12px;width:12px;height:7px;border-left:2px solid var(--good);border-bottom:2px solid var(--good);transform:rotate(-45deg)}
.note{font-size:14px;color:var(--muted);margin-top:16px}

/* faq */
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::after{content:"+";font-size:22px;line-height:1;color:var(--muted)}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin:12px 0 0}

/* form */
.form-block .wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
form.card{display:grid;gap:14px}
label{display:grid;gap:6px;font-size:14px;font-weight:600}
input[type=text],input[type=tel],input[type=url]{font:inherit;font-size:16px;padding:13px 14px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink);width:100%}
input:focus{outline:2px solid var(--accent);outline-offset:1px}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:13px;color:var(--muted)}
.check input{margin-top:3px;flex:none}
.hp{position:absolute;left:-9999px}
.form-msg{font-size:15px;padding:12px 14px;border-radius:10px;display:none}
.form-msg.ok{display:block;background:var(--good-soft);color:var(--good)}
.form-msg.err{display:block;background:var(--bad-soft);color:var(--bad)}
.checklist{list-style:none;padding:0;margin:18px 0 0}
.checklist li{padding:7px 0 7px 30px;position:relative}
.checklist li::before{content:"★";position:absolute;left:0;color:var(--star)}

footer{border-top:1px solid var(--line);padding:32px 0 48px;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer a{color:var(--muted)}

/* legal page */
.legal{max-width:780px;padding:48px 20px 80px;margin:0 auto}
.legal h1{font-size:34px;margin-bottom:24px}.legal h2{font-size:21px;margin:28px 0 10px}
.legal p,.legal li{color:var(--muted)}

@media (max-width:900px){
  .hero .wrap,.form-block .wrap{grid-template-columns:1fr}
  .grid3,.prices{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .nav{display:none}
  .top .btn{margin-left:auto}
}
@media (max-width:560px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .hero{padding:44px 0 32px}
  section.block{padding:44px 0}
  .grid2,.steps{grid-template-columns:1fr}
  .top .btn{display:none}
}