/* ==========================================================================
   EXPERTAKPP — design tokens
   Палитра приведена к фирменным цветам логотипа: чёрный корпус +
   красный акцент (шестерня) + нейтральный серый для второстепенных
   ссылок и подписей. Переменные --amber-* / --steel-* сохранены по
   имени для совместимости кода, но хранят фирменный красный/серый.
   Шрифты: Space Grotesk (заголовки, техническая геометрия шестерни) +
   Inter (текст). JetBrains Mono — только для реальных технических данных
   (коды ошибок, VIN, цены в таблице).
   ========================================================================== */

:root{
  --graphite-950:#171717;
  --graphite-900:#1E1E1E;
  --graphite-800:#292929;
  --graphite-700:#3D3D3D;
  --steel-500:#6B7280;
  --steel-300:#B7BBC0;
  --amber-500:#D6242B;
  --amber-600:#AE1E24;
  --paper-100:#F4F5F3;
  --paper-50:#FAFAF8;
  --line:#DDE1DE;
  --text-900:#181D24;
  --text-600:#4B5560;
  --text-400:#7C8791;

  --font-display:'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body:'Inter', -apple-system, Segoe UI, sans-serif;
  --font-mono:'JetBrains Mono', 'SFMono-Regular', monospace;

  --radius-s:2px;
  --radius-m:4px;
  --container:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text-900);
  background:var(--paper-50);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.15;margin:0 0 .5em;color:var(--graphite-950);}
p{margin:0 0 1em;color:var(--text-600);}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

:focus-visible{outline:2px solid var(--amber-500);outline-offset:2px;}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* ---------- Cookie banner ---------- */
.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:100;background:var(--graphite-950);border-top:1px solid var(--graphite-700);box-shadow:0 -8px 24px rgba(0,0,0,.25);}
.cookie-banner[hidden]{display:none;}
.cookie-banner__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 24px;flex-wrap:wrap;}
.cookie-banner__inner p{color:var(--text-400);font-size:13.5px;margin:0;max-width:640px;}
.cookie-banner__inner p a{color:var(--steel-300);text-decoration:underline;}
.cookie-banner__inner p a:hover{color:var(--amber-500);}
.cookie-banner__actions{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.cookie-banner__link{font-size:13px;color:var(--steel-300);white-space:nowrap;}
.cookie-banner__link:hover{color:#fff;}
@media (max-width:600px){
  .cookie-banner__inner{flex-direction:column;align-items:flex-start;}
  .cookie-banner__actions{width:100%;justify-content:space-between;}
}

/* ---------- Messenger links ---------- */
.messenger-links{display:flex;gap:10px;align-items:center;}
.messenger-link{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--graphite-800);color:#fff;flex-shrink:0;transition:background .15s ease;}
.messenger-link:hover{background:var(--amber-500);}
.messenger-link svg{width:16px;height:16px;fill:currentColor;}
.messenger-link--light{background:var(--paper-100);color:var(--graphite-950);border:1px solid var(--line);}
.messenger-link--light:hover{background:var(--amber-500);color:#fff;border-color:var(--amber-500);}
.messenger-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
.messenger-row__label{font-size:13px;color:var(--text-400);margin-right:2px;}
.contact-block{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);}
.contact-block:last-child{border-bottom:none;}
.contact-block__icon{width:38px;height:38px;border-radius:50%;background:var(--paper-100);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.contact-block__icon svg{width:18px;height:18px;fill:var(--graphite-950);}
.contact-block__text b{display:block;font-size:14.5px;}
.contact-block__text span{font-size:12.5px;color:var(--text-400);}

/* ---------- Topbar ---------- */
.topbar{background:var(--graphite-950);color:var(--paper-100);font-size:13px;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px;}
.topbar a{color:var(--steel-300);}
.topbar__hours{color:var(--text-400);}
.topbar .messenger-row{gap:8px;}
.topbar .messenger-link{width:22px;height:22px;}
.topbar .messenger-link svg{width:11px;height:11px;}
.topbar .messenger-link[title="MAX"]{font-size:7px;}

/* ---------- Header ---------- */
.header{background:var(--paper-50);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;overflow:visible;}
.header .container{display:flex;align-items:center;justify-content:space-between;height:84px;gap:32px;overflow:visible;}
.header__logo{display:flex;align-items:center;gap:12px;flex-shrink:0;position:relative;z-index:2;}
.header__logo-img{height:112px;width:auto;display:block;}
.header__logo-text{font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:.01em;line-height:1.2;}
.header__logo-text span{display:block;font-family:var(--font-body);font-weight:400;font-size:11px;color:var(--text-400);letter-spacing:.04em;}

.nav{display:flex;gap:28px;flex:1;justify-content:center;}
.nav > li{position:relative;}
.nav > li > a{font-size:14.5px;font-weight:500;padding:8px 0;border-bottom:2px solid transparent;}
.nav > li > a:hover,.nav > li > a.active{border-bottom-color:var(--amber-500);}
.nav .dropdown{display:none;position:absolute;top:100%;left:-16px;background:var(--paper-50);border:1px solid var(--line);border-radius:var(--radius-m);padding:8px;min-width:220px;box-shadow:0 12px 24px rgba(18,22,27,.12);}
.nav > li:hover .dropdown{display:block;}
.nav .dropdown a{display:block;padding:8px 12px;font-size:14px;border-radius:var(--radius-s);}
.nav .dropdown a:hover{background:var(--paper-100);color:var(--steel-500);}

.header__cta{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.header__phone{font-family:var(--font-display);font-weight:600;font-size:16px;white-space:nowrap;}
.header__phone span{display:block;font-family:var(--font-body);font-weight:400;font-size:11px;color:var(--text-400);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius-s);font-weight:600;font-size:14px;cursor:pointer;border:1px solid transparent;white-space:nowrap;transition:background .15s ease,color .15s ease,border-color .15s ease;}
.btn-amber{background:var(--amber-500);color:var(--graphite-950);}
.btn-amber:hover{background:var(--amber-600);}
.btn-outline{background:transparent;color:var(--paper-50);border-color:var(--graphite-700);}
.btn-outline:hover{border-color:var(--steel-300);}
.btn-outline-dark{background:transparent;color:var(--graphite-950);border-color:var(--line);}
.btn-outline-dark:hover{border-color:var(--steel-500);color:var(--steel-500);}

.burger{display:none;}

/* ---------- Hero ---------- */
.hero{background:var(--graphite-950);color:var(--paper-100);position:relative;overflow:hidden;}
.hero__mark{position:absolute;right:24px;top:96px;width:220px;height:220px;z-index:0;pointer-events:none;opacity:.92;}
.hero__mark svg{width:100%;height:100%;display:block;}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:520px;height:520px;
  border:1px solid var(--graphite-700);border-radius:50%;
}
.hero::before{
  content:"";position:absolute;right:-40px;top:60px;width:340px;height:340px;
  border:1px solid var(--graphite-700);border-radius:50%;
}
.hero .container{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;padding-top:72px;padding-bottom:64px;align-items:end;}
.hero__eyebrow{font-family:var(--font-mono);font-size:12.5px;color:var(--amber-500);letter-spacing:.02em;margin-bottom:18px;}
.hero h1{color:#fff;font-size:44px;max-width:14ch;margin-bottom:20px;}
.hero__lead{color:var(--steel-300);font-size:17px;max-width:46ch;margin-bottom:32px;}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px;}
.hero__specs{display:grid;grid-template-columns:repeat(3,auto);gap:32px;padding-top:28px;border-top:1px solid var(--graphite-700);max-width:520px;}
.hero__specs div b{display:block;font-family:var(--font-display);font-size:26px;color:#fff;}
.hero__specs div span{font-size:12.5px;color:var(--text-400);}

.hero__panel{background:var(--graphite-900);border:1px solid var(--graphite-700);border-radius:var(--radius-m);padding:28px;align-self:end;}
.hero__panel h3{color:#fff;font-size:16px;margin-bottom:16px;}
.hero__panel-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--graphite-800);font-size:13.5px;}
.hero__panel-row:last-of-type{border-bottom:none;}
.hero__panel-row span:first-child{color:var(--text-400);}
.hero__panel-row span:last-child{font-family:var(--font-mono);color:var(--amber-500);}

/* ---------- Brand strip ---------- */
.brand-strip{background:var(--paper-100);border-bottom:1px solid var(--line);padding:22px 0;}
.brand-strip .container{display:flex;align-items:center;gap:28px;flex-wrap:wrap;}
.brand-strip__label{font-size:12.5px;color:var(--text-400);font-family:var(--font-mono);flex-shrink:0;}
.brand-strip a{font-family:var(--font-display);font-weight:600;font-size:15px;color:var(--text-600);padding:6px 14px;border:1px solid var(--line);border-radius:20px;background:var(--paper-50);}
.brand-strip a:hover{border-color:var(--steel-500);color:var(--steel-500);}

/* ---------- Section base ---------- */
.section{padding:72px 0;}
.section--tight{padding:48px 0;}
.section--alt{background:var(--paper-100);}
.section__head{max-width:640px;margin-bottom:40px;}
.section__eyebrow{font-family:var(--font-mono);font-size:12px;color:var(--steel-500);letter-spacing:.03em;margin-bottom:10px;}
.section__head h2{font-size:30px;}
.section__head p{font-size:16px;}

/* ---------- Services grid ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.service-card{background:var(--paper-50);padding:32px;}
.service-card__index{font-family:var(--font-mono);font-size:12px;color:var(--text-400);}
.service-card h3{font-size:19px;margin:14px 0 10px;}
.service-card p{font-size:14.5px;margin-bottom:18px;}
.service-card a{font-size:14px;font-weight:600;color:var(--steel-500);border-bottom:1px solid var(--steel-300);padding-bottom:2px;}
.service-card a:hover{color:var(--amber-600);border-color:var(--amber-500);}

/* ---------- Brand cards (Chery/Omoda/Exeed/Tenet/BMW и др.) ---------- */
.brands-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.brand-card{border:1px solid var(--line);border-radius:var(--radius-m);padding:24px 20px;background:var(--paper-50);transition:border-color .15s ease,transform .15s ease;}
.brand-card:hover{border-color:var(--steel-500);transform:translateY(-2px);}
.brand-card h3{font-size:18px;margin-bottom:6px;}
.brand-card p{font-size:13px;margin-bottom:14px;min-height:36px;}
.brand-card__link{font-size:13.5px;font-weight:600;color:var(--amber-600);}

/* ---------- Steps ---------- */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.step{counter-increment:step;padding:28px 20px 28px 0;border-right:1px solid var(--line);position:relative;}
.step:last-child{border-right:none;}
.step::before{content:counter(step,decimal-leading-zero);font-family:var(--font-mono);font-size:13px;color:var(--amber-600);display:block;margin-bottom:14px;}
.step h4{font-size:15px;margin-bottom:6px;}
.step p{font-size:13.5px;}

/* ---------- Price table ---------- */
.price-table{width:100%;border-collapse:collapse;font-size:15px;}
.price-table th{text-align:left;font-family:var(--font-mono);font-size:12px;color:var(--text-400);font-weight:500;padding:0 0 12px;border-bottom:1px solid var(--graphite-700);text-transform:none;}
.price-table td{padding:16px 0;border-bottom:1px solid var(--line);color:var(--text-900);}
.price-table td:last-child{text-align:right;font-family:var(--font-mono);color:var(--amber-600);font-weight:600;white-space:nowrap;padding-left:16px;}
.price-note{font-size:13px;color:var(--text-400);margin-top:16px;}

/* ---------- Symptoms / two-column list ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
.check-list li{position:relative;padding-left:26px;margin-bottom:14px;font-size:15px;color:var(--text-600);}
.check-list li::before{content:"";position:absolute;left:0;top:6px;width:12px;height:12px;border:2px solid var(--amber-500);border-radius:2px;}

/* ---------- FAQ ---------- */
.faq details{border-bottom:1px solid var(--line);padding:20px 0;}
.faq summary{cursor:pointer;font-family:var(--font-display);font-weight:600;font-size:16.5px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-family:var(--font-mono);font-size:20px;color:var(--amber-600);flex-shrink:0;}
.faq details[open] summary::after{content:"–";}
.faq .faq-body{padding-top:14px;font-size:15px;max-width:70ch;}

/* ---------- Trust strip ---------- */
.trust-strip{background:var(--graphite-950);color:var(--paper-100);}
.trust-strip .container{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:44px 24px;}
.trust-item{padding:0 24px;border-left:1px solid var(--graphite-700);}
.trust-item:first-child{border-left:none;padding-left:0;}
.trust-item b{display:block;font-family:var(--font-display);font-size:30px;color:var(--amber-500);margin-bottom:6px;}
.trust-item span{font-size:13.5px;color:var(--text-400);}

/* ---------- CTA banner ---------- */
.cta-banner{background:var(--steel-500);color:#fff;border-radius:var(--radius-m);padding:44px 48px;display:flex;justify-content:space-between;align-items:center;gap:32px;}
.cta-banner h3{color:#fff;font-size:24px;margin-bottom:8px;}
.cta-banner p{color:rgba(255,255,255,.85);margin:0;}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{font-size:13px;color:var(--text-400);padding:18px 0;}
.breadcrumbs a{color:var(--steel-500);}
.breadcrumbs span{margin:0 6px;}

/* ---------- Page hero (внутренние страницы) ---------- */
.page-hero{background:var(--graphite-950);color:#fff;padding:48px 0 40px;}
.page-hero__eyebrow{font-family:var(--font-mono);font-size:12px;color:var(--amber-500);margin-bottom:12px;}
.page-hero h1{color:#fff;font-size:34px;max-width:22ch;}
.page-hero p{color:var(--steel-300);max-width:60ch;font-size:15.5px;margin-top:12px;}

/* ---------- Article content ---------- */
.article{max-width:760px;}
.article h2{font-size:24px;margin-top:2.2em;}
.article h3{font-size:19px;margin-top:1.6em;}
.article p,.article li{font-size:15.5px;color:var(--text-600);}
.article ul{margin-bottom:1.2em;}
.article ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.article ul li::before{content:"—";position:absolute;left:0;color:var(--amber-600);}

/* ---------- Form ---------- */
.form-panel{background:var(--paper-100);border:1px solid var(--line);border-radius:var(--radius-m);padding:32px;}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:13px;color:var(--text-400);margin-bottom:6px;}
.form-row input,.form-row select,.form-row textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-s);font-family:var(--font-body);font-size:14.5px;background:#fff;}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{border-color:var(--steel-500);}
.form-row--checkbox{margin-bottom:16px;}
.consent-check{display:flex;align-items:flex-start;gap:10px;cursor:pointer;}
.consent-check input{margin-top:3px;width:16px;height:16px;accent-color:var(--amber-500);flex-shrink:0;cursor:pointer;}
.consent-check span{font-size:12.5px;color:var(--text-400);line-height:1.5;}
.consent-check span a{color:var(--steel-500);}
.consent-check span a:hover{color:var(--amber-600);}
.form-note{font-size:12px;color:var(--text-400);margin-top:10px;}
.form-success{background:#E7F3E9;border:1px solid #B9DEC0;color:#256029;padding:14px 16px;border-radius:var(--radius-s);font-size:14px;margin-bottom:16px;}
.form-error{background:#FBEAE7;border:1px solid #F0C3BB;color:#9A2E1F;padding:14px 16px;border-radius:var(--radius-s);font-size:14px;margin-bottom:16px;}

/* ---------- Footer ---------- */
.footer{background:var(--graphite-950);color:var(--text-400);padding-top:56px;}
.footer .container{display:grid;grid-template-columns:1.2fr 1fr 1fr 1.3fr 1fr;gap:28px;padding-bottom:40px;}
.footer h4{color:#fff;font-size:14px;margin-bottom:16px;}
.footer li{margin-bottom:10px;font-size:13.5px;}
.footer a:hover{color:var(--amber-500);}
.footer__logo{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.footer__logo-img{height:52px;width:auto;}
.footer__logo-text{font-family:var(--font-display);color:#fff;font-weight:700;font-size:15px;line-height:1.3;}
.footer__logo-text span{font-family:var(--font-body);font-weight:400;font-size:11.5px;color:var(--text-400);letter-spacing:.02em;}
.footer p{font-size:13px;max-width:32ch;}
.footer__bottom{border-top:1px solid var(--graphite-800);padding:20px 0;font-size:12.5px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;}

/* ---------- Blog ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.blog-card{background:var(--paper-50);padding:32px;display:flex;flex-direction:column;}
.blog-card__meta{font-family:var(--font-mono);font-size:12px;color:var(--text-400);margin-bottom:14px;}
.blog-card__meta span:not(:last-child)::after{content:"·";margin:0 8px;color:var(--line);}
.blog-card h3{font-size:19px;margin-bottom:10px;}
.blog-card p{font-size:14.5px;margin-bottom:18px;flex:1;}
.blog-card a.blog-card__link{font-size:14px;font-weight:600;color:var(--amber-600);}
.blog-card a.blog-card__link:hover{color:var(--graphite-950);}

.related-articles{border-top:1px solid var(--line);margin-top:48px;padding-top:32px;}
.related-articles h3{font-size:16px;margin-bottom:18px;}
.related-articles ul{display:flex;flex-direction:column;gap:12px;}
.related-articles li a{font-size:14.5px;font-weight:500;color:var(--steel-500);border-bottom:1px solid var(--line);display:block;padding-bottom:12px;}
.related-articles li a:hover{color:var(--amber-600);border-color:var(--amber-500);}

.article-teaser{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.article-teaser__card{border:1px solid var(--line);border-radius:var(--radius-m);padding:24px;background:var(--paper-50);}
.article-teaser__card .blog-card__meta{margin-bottom:10px;}
.article-teaser__card h3{font-size:16.5px;margin-bottom:8px;}
.article-teaser__card p{font-size:13.5px;margin-bottom:0;}

@media (max-width:960px){
  .blog-grid{grid-template-columns:1fr;}
  .article-teaser{grid-template-columns:1fr;}
}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero .container{grid-template-columns:1fr;}
  .hero__panel{margin-top:8px;}
  .nav{display:none;}
  .burger{display:flex;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius-s);background:none;cursor:pointer;}
  .header__phone{display:none;}
  .services-grid{grid-template-columns:1fr;}
  .brands-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .step{border-right:none;border-bottom:1px solid var(--line);}
  .trust-strip .container{grid-template-columns:repeat(2,1fr);row-gap:28px;}
  .footer .container{grid-template-columns:1fr 1fr;}
  .two-col{grid-template-columns:1fr;}
  .cta-banner{flex-direction:column;align-items:flex-start;}
  .hero__mark{display:none;}
  .header__logo-img{height:72px;}
}
@media (max-width:600px){
  .header__logo-img{height:52px;}
  .hero h1{font-size:32px;}
  .brands-grid{grid-template-columns:1fr;}
  .trust-strip .container{grid-template-columns:1fr;}
  .footer .container{grid-template-columns:1fr;}
  .section{padding:48px 0;}
}