/* АвтоСовет — автомобильная дизайн-система (графит + оранжевый) */
:root{
  --bg:#f5f6f8;
  --bg-soft:#eceef2;
  --card:#ffffff;
  --txt:#16191f;
  --muted:#646c7a;
  --line:#e2e6ec;
  --brand:#ff6a13;
  --brand-2:#ff8c42;
  --brand-soft:#fff0e6;
  --ink:#1c2230;
  --accent:#2f6df6;
  --radius:14px;
  --shadow:0 10px 30px rgba(20,30,50,.10);
  --shadow-sm:0 4px 14px rgba(20,30,50,.07);
  --max:1160px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
}
[data-theme="dark"]{
  --bg:#11141a;--bg-soft:#171b22;--card:#191e26;--txt:#eef1f6;--muted:#9aa4b2;--line:#262d38;
  --brand-soft:#2a1a0e;--ink:#0d1016;--shadow:0 10px 30px rgba(0,0,0,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--txt);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.section-title{font-size:28px;font-weight:800;letter-spacing:-.02em;margin-bottom:6px}
.section-sub{color:var(--muted);margin-bottom:26px;font-size:16px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;letter-spacing:-.02em}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;box-shadow:var(--shadow-sm)}
.nav{display:flex;gap:24px}
.nav a{color:var(--muted);font-weight:600;font-size:15px;transition:.15s}
.nav a:hover{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden}
.lang-switch a{padding:6px 11px;font-size:13px;font-weight:700;color:var(--muted);cursor:pointer}
.lang-switch a.active{background:var(--brand);color:#fff}
.theme-toggle{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--card);cursor:pointer;font-size:16px;color:var(--txt)}
@media(max-width:860px){.nav{display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:11px;font-weight:700;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.16s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:var(--card);border-color:var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:15px 28px;font-size:16px}

/* hero */
.hero{padding:62px 0 48px;position:relative;overflow:hidden;background:linear-gradient(180deg,var(--ink),transparent 70%)}
.hero{color:#fff}
[data-theme="dark"] .hero{color:#fff}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:46px;align-items:center}
.hero h1{font-size:48px;line-height:1.08;font-weight:850;letter-spacing:-.03em;margin-bottom:16px;color:#fff}
.hero h1 .accent{color:var(--brand-2)}
.hero p.lead{font-size:19px;color:#c4ccd8;margin-bottom:26px;max-width:520px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:30px;margin-top:32px}
.hero-stats .st b{font-size:26px;font-weight:800;display:block;color:var(--brand-2)}
.hero-stats .st span{font-size:13px;color:#9aa4b2}
.hero-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow);color:var(--txt)}
.hero-card h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.gauge{display:flex;gap:16px;align-items:center;margin-bottom:14px}
.gauge .dial{width:92px;height:92px;border-radius:50%;background:conic-gradient(var(--brand) 0 72%,var(--bg-soft) 72% 100%);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.gauge .dial .in{width:70px;height:70px;border-radius:50%;background:var(--card);display:flex;flex-direction:column;align-items:center;justify-content:center}
.gauge .dial .in b{font-size:19px;color:var(--brand)}
.gauge .dial .in span{font-size:10px;color:var(--muted)}
.spec{flex:1;display:flex;flex-direction:column;gap:9px}
.spec .row{display:flex;justify-content:space-between;font-size:13px}
.spec .row span{color:var(--muted)}
.spec .row b{font-weight:700}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:28px}.hero h1{font-size:36px}}

/* grids / cards */
.block{padding:54px 0}
.block.alt{background:var(--bg-soft)}
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid-3,.grid-4{grid-template-columns:1fr}}
.tool-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.16s;cursor:pointer;display:flex;flex-direction:column;gap:8px;height:100%}
.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--brand) 40%,var(--line))}
.tool-card .ic{width:46px;height:46px;border-radius:12px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;font-size:23px;margin-bottom:4px}
.tool-card h3{font-size:17px;font-weight:750}
.tool-card p{font-size:14px;color:var(--muted)}
.tool-card .free{margin-top:auto;font-size:12px;color:var(--brand);font-weight:700;padding-top:8px}
.tool-card .lock{margin-top:auto;font-size:12px;color:var(--accent);font-weight:700;padding-top:8px}

/* reviews */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:900px){.reviews{grid-template-columns:1fr}}
.review{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.review .stars{color:#ffb020;font-size:14px;margin-bottom:8px}
.review p{font-size:15px;margin-bottom:14px}
.review .who{display:flex;align-items:center;gap:10px}
.review .ava{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.review .who b{font-size:14px;display:block}
.review .who span{font-size:12px;color:var(--muted)}

/* band */
.band{background:linear-gradient(135deg,var(--ink),#2a3346);color:#fff;border-radius:20px;padding:42px;text-align:center;box-shadow:var(--shadow);position:relative;overflow:hidden}
.band h2{font-size:30px;font-weight:800;margin-bottom:10px}
.band p{opacity:.9;margin-bottom:22px;font-size:17px}
.band .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2))}

/* faq */
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:12px}
.faq-item summary{font-weight:700;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--brand);font-size:22px}
.faq-item[open] summary::after{content:"\2212"}
.faq-item p{color:var(--muted);margin-top:12px;font-size:15px}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:14px;margin-top:20px}
.footer-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px}
.footer-cols{display:flex;gap:48px;flex-wrap:wrap}
.footer-cols b{color:var(--txt);display:block;margin-bottom:10px;font-size:14px}
.footer-cols a{display:block;color:var(--muted);margin-bottom:7px}
.footer-cols a:hover{color:var(--brand)}

/* tool page */
.tool-page{padding:34px 0 70px}
.back{color:var(--muted);font-weight:600;font-size:14px;display:inline-block;margin-bottom:18px}
.back:hover{color:var(--brand)}
.tool-page h1{font-size:33px;font-weight:850;letter-spacing:-.02em;margin-bottom:8px}
.tool-page .lead{color:var(--muted);font-size:17px;margin-bottom:26px;max-width:680px}
.calc{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}
@media(max-width:780px){.calc{grid-template-columns:1fr}}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}
.field input,.field select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--txt);font-size:15px;font-family:var(--font)}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand)}
.seg{display:flex;gap:8px}
.seg button{flex:1;padding:11px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--muted);font-weight:700;cursor:pointer;font-size:14px}
.seg button.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.result-big{font-size:44px;font-weight:850;color:var(--brand);letter-spacing:-.02em}
.result-big small{font-size:18px;color:var(--muted);font-weight:600}
.rows{margin-top:18px}
.rows .r{display:flex;justify-content:space-between;padding:12px 15px;border:1px solid var(--line);border-radius:10px;font-size:14px;margin-bottom:9px}
.rows .r b{color:var(--brand)}

/* modal */
.modal-backdrop{position:fixed;inset:0;background:rgba(12,16,24,.5);backdrop-filter:blur(4px);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}
.modal-backdrop[hidden]{display:none}
.modal{background:var(--card);border-radius:18px;padding:32px;max-width:400px;width:100%;box-shadow:var(--shadow);text-align:center;animation:pop .2s ease}
@keyframes pop{from{transform:scale(.94);opacity:0}to{transform:scale(1);opacity:1}}
.modal .ic{width:58px;height:58px;border-radius:16px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;font-size:27px;margin:0 auto 16px}
.modal h3{font-size:22px;margin-bottom:8px}
.modal p{color:var(--muted);margin-bottom:20px;font-size:15px}
.pin-input{display:flex;gap:10px;justify-content:center;margin-bottom:18px}
.pin-input input{width:48px;height:56px;text-align:center;font-size:24px;font-weight:800;border:1px solid var(--line);border-radius:11px;background:var(--bg);color:var(--txt)}
.pin-input input:focus{outline:none;border-color:var(--brand)}
.modal .err{color:#e5484d;font-size:13px;height:16px;margin-bottom:10px}
.modal .hint-small{font-size:13px;color:var(--muted);margin-top:14px}