/* НПО «Автогазтранс» — UI-Kit, шапка, подвал (общие для всех страниц) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ============ 1. ДИЗАЙН-ТОКЕНЫ ============ */
:root{
  --c-primary:#0f2b46;
  --c-primary-90:#163a5c;
  --c-primary-80:#1e4a73;
  --c-primary-dark:#0a1f33;
  --c-accent:#00a8cc;
  --c-accent-hover:#0090b0;
  --c-accent-soft:rgba(0,168,204,.12);
  --c-white:#ffffff;
  --c-bg:#f4f6f9;
  --c-border:#dde3ea;
  --c-text:#1a2733;
  --c-text-muted:#5b6b7b;
  --c-text-invert:#c9d6e3;
  --c-danger:#d64545;
  --c-success:#1f9d6b;

  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --fs-h1:clamp(2rem,1.4rem + 2.6vw,3.25rem);
  --fs-h2:clamp(1.625rem,1.25rem + 1.6vw,2.375rem);
  --fs-h3:clamp(1.25rem,1.1rem + .6vw,1.5rem);
  --fs-body:1rem;
  --fs-small:.875rem;
  --fs-xs:.8125rem;
  --lh-tight:1.2;
  --lh-body:1.65;

  --container:1280px;
  --gutter:clamp(16px,3vw,32px);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-6:48px; --sp-8:64px; --sp-12:96px;

  --radius-sm:4px; --radius:8px; --radius-lg:14px;
  --shadow-sm:0 1px 3px rgba(15,43,70,.08);
  --shadow:0 6px 20px rgba(15,43,70,.10);
  --shadow-lg:0 18px 40px rgba(15,43,70,.16);
  --ease:cubic-bezier(.2,.7,.2,1);
  --t:.25s var(--ease);

  --topbar-h:40px;
  --navbar-h:76px;
  --header-h:calc(var(--topbar-h) + var(--navbar-h));
  --z-header:1000;
}

/* ============ 2. БАЗА ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{margin:0;padding-top:var(--header-h);font-family:var(--font);font-size:var(--fs-body);line-height:var(--lh-body);color:var(--c-text);background:var(--c-white);-webkit-font-smoothing:antialiased}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:var(--c-accent);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-accent-hover)}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

h1,h2,h3,h4{margin:0 0 var(--sp-2);font-weight:700;line-height:var(--lh-tight);color:var(--c-primary);letter-spacing:-.02em}
h1{font-size:var(--fs-h1);font-weight:800}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3);font-weight:600;letter-spacing:-.01em}
p{margin:0 0 var(--sp-2)}
.text-muted{color:var(--c-text-muted)}
.eyebrow{display:inline-block;margin-bottom:var(--sp-1);font-size:var(--fs-xs);font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--c-accent)}

.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(48px,8vw,var(--sp-12))}
.section--gray{background:var(--c-bg)}
.section--dark{background:var(--c-primary);color:var(--c-text-invert)}
.section--dark h2,.section--dark h3{color:var(--c-white)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:var(--sp-2) var(--sp-4);margin-bottom:var(--sp-6)}
.section-head h2{margin:0}
.section-head p{max-width:560px;margin:var(--sp-2) 0 0}
.grid{display:grid;gap:var(--sp-3)}
.grid--2{grid-template-columns:repeat(auto-fill,minmax(min(100%,420px),1fr))}
.grid--3{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}
.grid--4{grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr))}

/* ============ 3. КНОПКИ ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 26px;border:2px solid transparent;border-radius:var(--radius);font-size:.9375rem;font-weight:600;line-height:1.2;text-align:center;white-space:nowrap;transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-accent);color:var(--c-white)}
.btn-primary:hover{background:var(--c-accent-hover);color:var(--c-white);box-shadow:0 8px 20px rgba(0,168,204,.35);transform:translateY(-2px)}
.btn-secondary{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-secondary:hover{background:var(--c-primary);color:var(--c-white)}
.section--dark .btn-secondary,.btn-secondary.btn--on-dark{color:var(--c-white);border-color:rgba(255,255,255,.5)}
.section--dark .btn-secondary:hover,.btn-secondary.btn--on-dark:hover{background:var(--c-white);color:var(--c-primary)}
.btn-sm{min-height:40px;padding:8px 18px;font-size:var(--fs-small)}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;pointer-events:none}

/* ============ 4. КАРТОЧКИ ============ */
.card{position:relative;display:flex;flex-direction:column;background:var(--c-white);border:1px solid var(--c-border);border-radius:var(--radius-lg);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.card::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.card:hover::after{transform:scaleX(1)}
.card__media{aspect-ratio:4/3;background:var(--c-bg);overflow:hidden}
.card__media picture{display:block;width:100%;height:100%}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .card__media img{transform:scale(1.05)}
.card__body{display:flex;flex-direction:column;flex:1;padding:var(--sp-3)}
.card__title{margin-bottom:var(--sp-1);font-size:1.125rem}
.card__title a{color:inherit}
.card__title a::before{content:"";position:absolute;inset:0}
.card__specs{margin:var(--sp-2) 0;font-size:var(--fs-small);color:var(--c-text-muted)}
.card__specs li{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px dashed var(--c-border)}
.card__specs b{color:var(--c-text);font-weight:600}
.card__footer{margin-top:auto;font-weight:600;color:var(--c-accent)}
.project .card__media{position:relative;aspect-ratio:16/10}
.project .card__media img{width:100%;height:100%;object-fit:cover}
.project__tag{position:absolute;top:var(--sp-2);left:var(--sp-2);padding:4px 10px;border-radius:999px;background:rgba(15,43,70,.85);color:var(--c-white);font-size:var(--fs-xs);font-weight:600;pointer-events:none}
.project__meta{display:flex;flex-wrap:wrap;gap:6px 16px;margin-bottom:var(--sp-1);font-size:var(--fs-xs);color:var(--c-text-muted)}
.project__meta:empty{display:none}
.card__media.is-contain{background:#fff}
.card__media.is-contain img{object-fit:contain}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;background:var(--c-accent-soft);color:var(--c-primary);font-size:var(--fs-xs);font-weight:600}

/* ============ 5. ФОРМЫ ============ */
.form{display:grid;gap:var(--sp-2)}
.form__row{display:grid;gap:var(--sp-2);grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr))}
.field{display:flex;flex-direction:column;gap:6px}
.field__label{font-size:var(--fs-small);font-weight:600;color:var(--c-primary)}
.field__label .req{color:var(--c-danger)}
.input,.select,.textarea{width:100%;min-height:48px;padding:12px 16px;border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-white);font:inherit;color:var(--c-text);transition:border-color var(--t),box-shadow var(--t)}
.textarea{min-height:120px;resize:vertical}
.select{appearance:none;padding-right:44px;background:var(--c-white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%230f2b46' stroke-width='2'/%3E%3C/svg%3E") no-repeat right 16px center}
.input::placeholder,.textarea::placeholder{color:#97a4b1}
.input:hover,.select:hover,.textarea:hover{border-color:#b9c4d0}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 4px var(--c-accent-soft)}
.input.is-invalid,.input:user-invalid{border-color:var(--c-danger)}
.field__error{font-size:var(--fs-xs);color:var(--c-danger)}
.check{display:flex;align-items:flex-start;gap:10px;font-size:var(--fs-small);color:var(--c-text-muted);cursor:pointer}
.check input{flex:none;width:18px;height:18px;margin-top:2px;accent-color:var(--c-accent)}
.form--dark .field__label{color:var(--c-white)}
.form--dark .check{color:var(--c-text-invert)}
.select.is-invalid,.textarea.is-invalid,.check input.is-invalid{border-color:var(--c-danger);outline:2px solid var(--c-danger)}
.form__hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form__status:empty{display:none}
.form__status{margin:0;padding:12px 16px;border-radius:var(--radius);font-size:var(--fs-small);font-weight:600}
.form__status.is-ok{background:rgba(31,157,107,.12);color:var(--c-success)}
.form__status.is-error{background:rgba(214,69,69,.12);color:var(--c-danger)}
.form--dark .form__status.is-ok{background:rgba(31,157,107,.2);color:#7ee2b8}
.form--dark .form__status.is-error{background:rgba(214,69,69,.2);color:#ffb3b3}
.form__actions{display:flex;flex-wrap:wrap;align-items:center;gap:var(--sp-2)}

/* ============ 5a. ОБЩИЕ БЛОКИ: полный цикл, документы ============ */
.cycle{counter-reset:step;margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:var(--sp-3)}
.cycle__step{position:relative;counter-increment:step;padding-top:72px}
.cycle__step::before{content:counter(step,decimal-leading-zero);position:absolute;top:0;left:0;display:flex;align-items:center;justify-content:center;width:52px;height:52px;border:2px solid var(--c-accent);border-radius:50%;background:var(--c-primary);font-weight:700;color:var(--c-white);z-index:1}
.cycle__step::after{content:"";position:absolute;top:26px;left:52px;right:calc(-1 * var(--sp-3));height:2px;background:repeating-linear-gradient(90deg,rgba(0,168,204,.6) 0 8px,transparent 8px 14px)}
.cycle__step:last-child::after{display:none}
.cycle__step h3{font-size:1.0625rem;margin-bottom:var(--sp-1)}
.cycle__step p{margin:0;font-size:var(--fs-small)}
.docs{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3)}
.doc{display:flex;gap:var(--sp-2);align-items:flex-start;padding:var(--sp-3);border:1px solid var(--c-border);border-radius:var(--radius-lg);background:var(--c-white);transition:border-color var(--t),box-shadow var(--t)}
.doc:hover{border-color:var(--c-accent);box-shadow:var(--shadow)}
.doc svg{flex:none;width:36px;height:36px;color:var(--c-accent)}
.doc b{display:block;color:var(--c-primary);line-height:1.3}
.doc span{font-size:var(--fs-xs);color:var(--c-text-muted)}
.doc--thumb{align-items:center}
.doc--thumb picture{flex:none;width:64px;aspect-ratio:210/297;border:1px solid var(--c-border);border-radius:var(--radius-sm);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}
.doc--thumb img{width:100%;height:100%;object-fit:cover;object-position:top}
@media (max-width:1080px){
  .cycle{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));row-gap:var(--sp-4)}
  .cycle__step::after{display:none}
  .docs{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){.docs{grid-template-columns:1fr}}

/* ============ 6. ШАПКА ============ */
.header{position:fixed;inset:0 0 auto;z-index:var(--z-header);background:var(--c-white);transition:box-shadow var(--t)}
.header.is-scrolled{box-shadow:var(--shadow)}

.topbar{height:var(--topbar-h);background:var(--c-primary);color:var(--c-text-invert);font-size:var(--fs-xs)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3);height:100%}
.topbar__geo{display:flex;align-items:center;gap:8px;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__geo svg{flex:none;width:14px;color:var(--c-accent)}
.topbar__contacts{display:flex;align-items:center;gap:var(--sp-3);flex:none}
.topbar a{color:var(--c-white);font-weight:500}
.topbar a:hover{color:var(--c-accent)}

.navbar{height:var(--navbar-h);border-bottom:1px solid var(--c-border)}
.navbar__inner{display:flex;align-items:center;gap:var(--sp-4);height:100%}

.logo{display:flex;align-items:center;gap:14px;flex:none;color:var(--c-primary)}
.logo:hover{color:var(--c-primary)}
.logo__mark{flex:none;width:auto;height:48px;aspect-ratio:185/105;color:#2b2b2a;transition:transform var(--t)}
.logo:hover .logo__mark{transform:scale(1.04)}
.logo__text{display:flex;flex-direction:column;gap:3px;padding-left:14px;border-left:1px solid var(--c-border);line-height:1.1}
.logo__name{font-size:1.125rem;font-weight:800;letter-spacing:-.01em}
.logo__sub{font-size:.6875rem;font-weight:600;color:var(--c-text-muted);letter-spacing:.09em;text-transform:uppercase;white-space:nowrap}

.nav{flex:1}
.nav__list{display:flex;align-items:center;justify-content:center;gap:4px}
.nav__item{position:relative}
.nav__link{display:flex;align-items:center;gap:6px;height:var(--navbar-h);padding:0 14px;font-size:.9375rem;font-weight:600;color:var(--c-primary);position:relative}
.nav__link::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;background:var(--c-accent);transform:scaleX(0);transition:transform var(--t)}
.nav__item:hover>.nav__link,.nav__link[aria-current="page"]{color:var(--c-accent)}
.nav__item:hover>.nav__link::after,.nav__link[aria-current="page"]::after{transform:scaleX(1)}
.nav__caret{width:10px;transition:transform var(--t)}
.nav__item:hover>.nav__link .nav__caret{transform:rotate(180deg)}
.nav__toggle,.nav__mobile-cta{display:none}

.submenu{position:absolute;top:100%;left:0;min-width:270px;padding:10px 0;background:var(--c-white);border:1px solid var(--c-border);border-top:3px solid var(--c-accent);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity var(--t),transform var(--t),visibility var(--t)}
.nav__item:hover>.submenu,.nav__item:focus-within>.submenu{opacity:1;visibility:visible;transform:none}
.submenu__item{position:relative}
.submenu__link{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 20px;font-size:var(--fs-small);font-weight:500;color:var(--c-text)}
.submenu__link:hover{background:var(--c-bg);color:var(--c-accent)}
.submenu__link svg{width:8px;color:var(--c-text-muted)}
.submenu--l3{top:-13px;left:100%;border-top-width:1px;border-left:3px solid var(--c-accent);border-radius:0 var(--radius) var(--radius) 0;transform:translateX(8px)}
.submenu__item:hover>.submenu--l3,.submenu__item:focus-within>.submenu--l3{opacity:1;visibility:visible;transform:none}
.submenu__all{margin-top:6px;border-top:1px solid var(--c-border)}
.submenu__all .submenu__link{color:var(--c-accent);font-weight:600}

.navbar__cta{flex:none}
.burger{display:none;flex:none;width:48px;height:48px;margin-left:auto;padding:12px;border:0;border-radius:var(--radius);background:var(--c-bg)}
.burger span{display:block;height:2px;margin:5px 0;background:var(--c-primary);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 7. ПОДВАЛ ============ */
.footer{background:var(--c-primary-dark);color:var(--c-text-invert);font-size:var(--fs-small)}
.footer a{color:var(--c-text-invert)}
.footer a:hover{color:var(--c-accent)}
.footer__main{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.3fr;gap:var(--sp-6);padding-block:var(--sp-8)}
.footer__title{margin-bottom:var(--sp-3);font-size:.8125rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--c-white)}
.footer__list li+li{margin-top:10px}
.footer .logo{color:var(--c-white);margin-bottom:var(--sp-3)}
.footer .logo__sub{color:var(--c-text-invert)}
.footer .logo__mark{height:50px;color:var(--c-white)}
.footer .logo__text{border-color:rgba(255,255,255,.16)}
.footer__about{margin-bottom:var(--sp-3);max-width:320px}
.footer__contact{display:flex;gap:10px;margin-bottom:12px}
.footer__contact svg{flex:none;width:16px;margin-top:3px;color:var(--c-accent)}
.footer .footer__phone{font-size:1.0625rem;font-weight:700;color:var(--c-white)}
.footer__req{margin-top:var(--sp-3);padding-top:var(--sp-2);border-top:1px solid rgba(255,255,255,.12);font-size:var(--fs-xs);line-height:1.7;opacity:.8}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding-block:var(--sp-3);font-size:var(--fs-xs)}
.footer__bottom-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--sp-2) var(--sp-4)}
.footer__legal{display:flex;flex-wrap:wrap;gap:var(--sp-3)}
.footer__disclaimer{flex-basis:100%;margin:0;opacity:.65}

/* ============ 8. АДАПТИВ ============ */
@media (max-width:1200px){
  .nav__link{padding:0 10px;font-size:.875rem}
  .navbar__inner{gap:var(--sp-2)}
}
@media (max-width:1080px){
  :root{--navbar-h:68px}
  .burger{display:block}
  .navbar__cta{display:none}
  .nav{position:fixed;top:var(--header-h);left:0;right:0;bottom:0;overflow-y:auto;background:var(--c-white);padding:var(--sp-2) var(--gutter) var(--sp-6);transform:translateX(100%);visibility:hidden;transition:transform var(--t),visibility var(--t)}
  .nav.is-open{transform:none;visibility:visible}
  .nav__list{flex-direction:column;align-items:stretch;gap:0}
  .nav__item{border-bottom:1px solid var(--c-border);display:flex;flex-wrap:wrap}
  .nav__link{flex:1;height:auto;padding:16px 0;font-size:1.0625rem}
  .nav__link::after,.nav__link .nav__caret{display:none}
  .nav__toggle{display:flex;align-items:center;justify-content:center;width:48px;border:0;background:none;color:var(--c-primary)}
  .nav__toggle svg{width:12px;transition:transform var(--t)}
  .nav__toggle[aria-expanded="true"] svg{transform:rotate(180deg)}
  .submenu,.submenu--l3{position:static;flex-basis:100%;min-width:0;padding:0 0 12px 12px;border:0;box-shadow:none;opacity:1;visibility:visible;transform:none;display:none}
  .nav__item.is-open>.submenu{display:block}
  .submenu--l3{display:block;padding:0 0 0 16px}
  .submenu__link svg{display:none}
  .nav__mobile-cta{display:flex;margin-top:var(--sp-3)}
  .footer__main{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  :root{--topbar-h:36px}
  .topbar__geo,.topbar__email{display:none}
  .topbar__contacts{width:100%;justify-content:space-between}
}
@media (max-width:560px){
  .header .logo__sub{display:none}
  .header .logo{gap:10px}
  .header .logo__mark{height:38px}
  .header .logo__text{padding-left:10px}
  .logo__name{font-size:1rem}
  .topbar__phone--2{display:none}
  .footer__main{grid-template-columns:1fr;gap:var(--sp-4)}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* cookie banner */
.cookie-banner{position:fixed;right:24px;bottom:24px;z-index:1050;width:min(400px,calc(100vw - 32px));padding:20px 22px;background:var(--c-white);border:1px solid var(--c-border);border-radius:var(--radius-lg);box-shadow:0 16px 48px rgba(15,43,70,.18);font-size:var(--fs-small);line-height:1.5;color:var(--c-text);animation:cookie-in .35s ease;transition:opacity .3s,transform .3s}
.cookie-banner.is-hidden{opacity:0;transform:translateY(12px)}
.cookie-banner__title{margin:0 0 6px;font-weight:700;color:var(--c-primary)}
.cookie-banner__text{margin:0 0 14px;color:var(--c-text-muted)}
.cookie-banner__text a{text-decoration:underline;text-underline-offset:2px}
@keyframes cookie-in{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@media (max-width:480px){.cookie-banner{right:12px;left:12px;bottom:12px;width:auto}.cookie-banner__btn{width:100%}}