:root{
  --bg:#0E1114; --surface:#171B21; --surface2:#1E242C; --line:#2A323C;
  --text:#F2F4F7; --muted:#98A2B3; --accent:#F5A524; --accent-d:#D98C10; --green:#12B76A;
  --r:14px; --max:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:400 16px/1.6 -apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
section{padding:72px 0}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;font-weight:800}
h1{font-size:clamp(30px,5.2vw,54px)}
h2{font-size:clamp(24px,3.6vw,38px);margin-bottom:12px}
h3{font-size:20px;font-weight:700}
.lead{color:var(--muted);font-size:clamp(15px,2vw,19px);max-width:640px}
.sec-head{margin-bottom:36px}
.accent{color:var(--accent)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 28px;border:0;border-radius:10px;font:700 16px/1 inherit;cursor:pointer;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--accent);color:#14171B}
.btn-primary:hover{background:var(--accent-d)}
.btn-ghost{background:transparent;color:var(--text);box-shadow:inset 0 0 0 1px var(--line)}
.btn-ghost:hover{background:var(--surface2)}
.btn-block{width:100%}

/* header */
header{position:sticky;top:0;z-index:60;background:rgba(14,17,20,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;gap:24px;height:66px}
.logo{font-weight:800;font-size:19px;letter-spacing:-.02em}
.logo span{color:var(--accent)}
nav{display:flex;gap:24px;margin-left:auto;color:var(--muted);font-size:15px}
nav a:hover{color:var(--text)}
header .btn{padding:11px 20px;font-size:15px}
@media(max-width:860px){nav{display:none}}

/* hero */
.hero{padding:64px 0 56px;background:radial-gradient(900px 420px at 78% -10%,rgba(245,165,36,.14),transparent 65%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:32px}}
.hero p.lead{margin:20px 0 28px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.trust{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:36px;max-width:520px}
.trust div{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--muted)}
.trust b{color:var(--text);font-weight:600}
.tick{flex:0 0 20px;height:20px;border-radius:50%;background:rgba(18,183,106,.15);color:var(--green);display:grid;place-items:center;font-size:12px;margin-top:2px}
.hero-img{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.5)}

/* cards */
.cars{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.18s}
.card:hover{border-color:#3A4553;transform:translateY(-3px)}
.card-img{aspect-ratio:4/3;background:var(--surface2);position:relative;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-img .ph{width:100%;height:100%;display:grid;place-items:center;color:#4A5563;font-size:14px;text-align:center;padding:20px}
.badge{position:absolute;top:12px;left:12px;background:var(--accent);color:#14171B;font:700 12px/1 inherit;padding:7px 11px;border-radius:6px}
.card-body{padding:20px;display:flex;flex-direction:column;gap:14px;flex:1}
.card-body h3{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.card-body h3 small{font-weight:500;font-size:14px;color:var(--muted)}
.specs{display:flex;flex-wrap:wrap;gap:6px}
.specs span{background:var(--surface2);border:1px solid var(--line);color:var(--muted);font-size:13px;padding:5px 10px;border-radius:6px}
.price-row{border-top:1px solid var(--line);padding-top:14px;display:flex;justify-content:space-between;align-items:flex-end;gap:12px}
.price-row .k{font-size:13px;color:var(--muted);display:block;margin-bottom:2px}
.price-row .v{font-size:26px;font-weight:800;letter-spacing:-.02em}
.price-row .v small{font-size:14px;font-weight:500;color:var(--muted)}
.price-row .r{text-align:right}
.price-row .r .v{font-size:17px;color:var(--accent)}
.feat{list-style:none;display:flex;flex-direction:column;gap:7px;font-size:14px;color:var(--muted)}
.feat li{display:flex;gap:8px}
.card .btn{margin-top:auto}
.card.is-order .badge{background:var(--surface2);color:var(--muted);border:1px solid var(--line)}
.order-note{font-size:13px;line-height:1.5;color:var(--muted);background:var(--surface2);border:1px solid var(--line);border-radius:8px;padding:10px 12px}

/* calc */
#calc{background:var(--surface)}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
@media(max-width:900px){.calc-grid{grid-template-columns:1fr;gap:28px}}
.field{margin-bottom:26px}
.field label{display:flex;justify-content:space-between;align-items:baseline;font-size:14px;color:var(--muted);margin-bottom:12px}
.field label b{color:var(--text);font-size:17px;font-weight:700}
select{width:100%;background:var(--surface2);border:1px solid var(--line);color:var(--text);padding:14px;border-radius:10px;font:inherit;font-size:16px}
input[type=range]{-webkit-appearance:none;width:100%;height:5px;background:var(--line);border-radius:3px;outline:0}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;border-radius:50%;background:var(--accent);cursor:pointer;border:4px solid var(--bg);box-shadow:0 0 0 1px var(--accent)}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--accent);cursor:pointer;border:3px solid var(--bg)}
.rng-ends{display:flex;justify-content:space-between;font-size:12px;color:#5C6875;margin-top:6px}
.result{background:var(--surface2);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.big{font-size:clamp(36px,6vw,52px);font-weight:800;letter-spacing:-.03em;color:var(--accent);line-height:1.05}
.big small{font-size:17px;color:var(--muted);font-weight:500;letter-spacing:0}
.rlist{list-style:none;margin:22px 0;border-top:1px solid var(--line)}
.rlist li{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
.rlist li span{color:var(--muted)}
.rlist li b{font-weight:700;text-align:right}
.rlist li.hi b{color:var(--accent)}
.note{font-size:13px;color:#6B7684;margin-top:16px;line-height:1.5}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.step .n{width:38px;height:38px;border-radius:10px;background:rgba(245,165,36,.13);color:var(--accent);display:grid;place-items:center;font-weight:800;margin-bottom:16px}
.step p{color:var(--muted);font-size:15px;margin-top:8px}

/* reviews */
.rev-warn{background:rgba(245,165,36,.09);border:1px solid rgba(245,165,36,.3);color:var(--accent);border-radius:10px;padding:12px 16px;font-size:14px;margin-bottom:24px}
.revs{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.rev{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;position:relative}
.rev .stars{color:var(--accent);font-size:14px;letter-spacing:2px;margin-bottom:12px}
.rev p{color:var(--muted);font-size:15px}
.rev footer{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:14px}
.rev footer b{display:block}
.rev footer span{color:#5C6875;font-size:13px}
.demo-tag{position:absolute;top:14px;right:14px;background:var(--surface2);border:1px solid var(--line);color:#6B7684;font-size:11px;padding:4px 8px;border-radius:5px;text-transform:uppercase;letter-spacing:.06em}

/* faq */
.faq{max-width:800px}
details{background:var(--surface);border:1px solid var(--line);border-radius:10px;margin-bottom:10px;overflow:hidden}
summary{padding:18px 22px;cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';color:var(--accent);font-size:22px;line-height:1;flex:0 0 auto}
details[open] summary::after{content:'−'}
details p{padding:0 22px 20px;color:var(--muted);font-size:15px}

/* form */
#zayavka{background:linear-gradient(180deg,var(--surface),var(--bg))}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
@media(max-width:900px){.form-grid{grid-template-columns:1fr;gap:28px}}
form.lead-form{background:var(--surface2);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.inp{width:100%;background:var(--bg);border:1px solid var(--line);color:var(--text);padding:15px;border-radius:10px;font:inherit;font-size:16px;margin-bottom:12px}
.inp:focus{outline:0;border-color:var(--accent)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);margin:14px 0 18px}
.consent input{margin-top:3px;flex:0 0 auto;width:17px;height:17px;accent-color:var(--accent)}
.consent a{color:var(--accent);text-decoration:underline}
.form-msg{margin-top:14px;font-size:15px;display:none}
.form-msg.ok{display:block;color:var(--green)}
.form-msg.err{display:block;color:#F97066}

/* float */
.float{position:fixed;right:18px;bottom:18px;z-index:70;display:flex;flex-direction:column;gap:10px}
.float a{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:#14171B;box-shadow:0 8px 24px rgba(0,0,0,.45);font-weight:800;font-size:12px}

footer.site{border-top:1px solid var(--line);padding:36px 0;color:#5C6875;font-size:14px}
footer.site .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* lightbox */
.lb{position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:100;display:none;place-items:center;padding:24px}
.lb.on{display:grid}
.lb img{max-width:94vw;max-height:88vh;border-radius:10px}
.lb button{position:absolute;top:18px;right:22px;background:none;border:0;color:#fff;font-size:36px;cursor:pointer;line-height:1}
.lb .nav{position:absolute;top:50%;transform:translateY(-50%);font-size:44px;color:#fff;background:none;border:0;cursor:pointer;padding:16px}
.lb .prev{left:6px} .lb .next{right:6px}