:root{
  --bg:#ffffff;
  --text:#1b1f24;
  --muted:#5d6a77;
  --border:#d7dde3;
  --panel:#f6f8fa;
  --accent:#0b5ea8;
  --accent-2:#084a82;
  --shadow: 0 10px 30px rgba(0,0,0,.06);
  --radius: 12px;
  --container: 1160px;
  --gap: 18px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:var(--bg);
  line-height:1.5;
}

a{color:var(--accent); text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%; height:auto; display:block;}

.container{
  width:min(var(--container), calc(100% - 32px));
  margin-inline:auto;
}

.skip-link{
  position:absolute;
  left:-999px;
  top:auto;
  width:1px;
  height:1px;
  overflow:hidden;
}
.skip-link:focus{
  left:16px;
  top:16px;
  width:auto;
  height:auto;
  padding:10px 12px;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:10px;
  z-index:9999;
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:var(--bg);
  border-bottom:1px solid var(--border);
}

.topbar__inner{
  display:flex;
  align-items:center;
  gap:16px;
  padding:6px 0;
}

.brand{flex:1;}
.brand__link{display:flex; flex-direction:row; align-items:center; gap:12px; color:inherit; text-decoration:none;}
.brand__link:hover{text-decoration:none;}
.brand__text{display:flex; flex-direction:column; min-width:0;}
.brand__logo-wrap{flex:0 0 auto; background:#fff; border:0; border-radius:6px; padding:4px 10px; line-height:0;}
.brand__logo{display:block; height:48px; width:auto; max-width:180px; object-fit:contain;}
.brand__name{font-weight:700; letter-spacing:.2px;}
.brand__tagline{font-size:14px; color:var(--muted);}

.topbar__contacts{
  display:flex;
  align-items:center;
  gap:14px;
}
.contact{font-size:14px; color:var(--text); text-decoration:none;}
.contact:hover{color:var(--accent); text-decoration:none;}

.burger{
  display:none;
  background:transparent;
  border:1px solid var(--border);
  border-radius:10px;
  width:44px;
  height:40px;
  cursor:pointer;
}
.burger:focus{outline:2px solid rgba(11,94,168,.3); outline-offset:2px;}
.burger__lines{
  display:block;
  width:18px;
  height:2px;
  background:var(--text);
  position:relative;
  margin:0 auto;
}
.burger__lines::before,
.burger__lines::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--text);
}
.burger__lines::before{top:-6px;}
.burger__lines::after{top:6px;}

.site-nav{
  border-top:1px solid var(--border);
  background:var(--bg);
}
.nav-list{
  list-style:none;
  margin:0;
  padding:6px 0;
  display:flex;
  gap:14px;
  align-items:center;
}
.nav-link{
  display:inline-block;
  padding:8px 10px;
  border-radius:10px;
  color:var(--text);
  text-decoration:none;
}
.nav-link:hover{background:var(--panel); text-decoration:none;}
.nav-link.is-active{
  background:rgba(11,94,168,.10);
  color:var(--accent-2);
  font-weight:600;
}

/* Layout blocks */
.main{padding-bottom:40px;}

.hero{
  background:linear-gradient(180deg, rgba(11,94,168,.05), transparent 65%);
  border-bottom:1px solid var(--border);
}
.hero__inner{
  display:grid;
  grid-template-columns: 1.3fr .7fr;
  gap:24px;
  padding:26px 0 30px;
}
.hero__title{margin:0 0 6px; font-size:34px; line-height:1.15;}
.hero__subtitle{margin:0 0 12px; font-size:16px; color:var(--muted);}
.hero__lead{margin:0 0 16px; color:var(--text); max-width:65ch;}

@media (min-width:921px){
  .hero__panel{align-self:center;}
}

.panel{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow);
}
.panel__title{font-weight:700; margin-bottom:10px;}
.panel__line{font-size:14px; margin:6px 0;}
.muted{color:var(--muted);}

.section{padding:28px 0;}
.section--muted{background:var(--panel); border-top:1px solid var(--border); border-bottom:1px solid var(--border);}
.section__title{margin:0 0 14px; font-size:22px;}

.page-head{
  padding:22px 0;
  border-bottom:1px solid var(--border);
  background:var(--panel);
}
.page-head__title{margin:0 0 8px; font-size:28px; line-height:1.2;}
.page-head__lead{margin:0; color:var(--muted); max-width:80ch;}

/* Cards and grids */
.grid{
  display:grid;
  gap:var(--gap);
}
.grid--2{grid-template-columns:repeat(2, minmax(0, 1fr));}
.grid--3{grid-template-columns:repeat(3, minmax(0, 1fr));}

.card{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow);
}
.card--plain{box-shadow:none;}
.card__title{font-weight:700; margin-bottom:8px;}
.card__text{margin:0; color:var(--muted);}

.card--link{
  position:relative;
  text-decoration:none;
  color:inherit;
  transition:transform .06s ease, border-color .06s ease;
}
.card--link:hover{transform:translateY(-1px); border-color:rgba(11,94,168,.35); text-decoration:none;}
.card__arrow{
  position:absolute;
  right:16px;
  bottom:14px;
  color:var(--muted);
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid var(--border);
  background:var(--bg);
  color:var(--text);
  text-decoration:none;
  cursor:pointer;
}
.btn:hover{border-color:rgba(11,94,168,.35); text-decoration:none;}
.btn--primary{
  background:var(--accent);
  color:#fff;
  border-color:var(--accent);
}
.btn--primary:hover{background:var(--accent-2); border-color:var(--accent-2);}
.btn--small{padding:9px 12px; border-radius:12px; font-size:14px;}

.cta-row{display:flex; gap:10px; flex-wrap:wrap;}
.cta-row--center{justify-content:center; margin-top:14px;}

/* Products */
.chips{display:flex; gap:10px; flex-wrap:wrap;}
.chip{
  padding:8px 12px;
  border:1px solid var(--border);
  border-radius:999px;
  background:var(--bg);
  color:var(--text);
  text-decoration:none;
}
.chip:hover{border-color:rgba(11,94,168,.35); text-decoration:none;}

.product{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  gap:10px;
}
.product__title{font-weight:700;}
.product__title a{color:inherit;}
.product__image-link{display:block;}
.product{min-width:0; overflow-wrap:anywhere;}
.product__image{width:100%; aspect-ratio:8 / 5; object-fit:contain; border-radius:8px; background:var(--panel);}
.product h2.product__title{font-size:18px; margin:0;}
.product__sku{margin:0; color:var(--muted); font-size:14px;}
.product__price{margin:0; margin-top:auto; font-weight:700; font-size:20px;}
.catalog-status{margin:0 0 18px; color:var(--muted);}
.catalog-status[data-state="error"]{color:#9f2424;}
.catalog-actions{margin-top:20px;}
.catalog-actions .btn[hidden]{display:none;}
.product-detail{display:grid; grid-template-columns:minmax(0, 1fr) minmax(0, 1fr); gap:28px; align-items:start;}
.product-detail[hidden]{display:none;}
.product-detail__info{min-width:0; overflow-wrap:anywhere;}
.product-detail__info > p{margin-bottom:16px;}
.product-detail__description{white-space:pre-wrap; overflow-wrap:anywhere; margin:0;}
#admin-conflict[hidden], #admin-conflict [hidden]{display:none;}
.product-detail__back{display:inline-block; margin-bottom:14px;}
#product-title{overflow-wrap:anywhere;}
@media (max-width:700px){.product-detail{grid-template-columns:minmax(0, 1fr); gap:20px;}}
/* Reserve incoming content before the API reply, including empty/error states.
   A catalog card is its 8:5 photo plus 142px of padding, gaps and one-line text.
   Two rows keep the initial footer outside the arriving list; real content may grow.
   Detail reserves the existing photo/info layout, not a fixed/clipped page height. */
.catalog-view, #product-view{--view-width:min(var(--container), calc(100vw - 32px));}
.catalog-view{
  --catalog-columns:3;
  --catalog-photo-height:calc((var(--view-width) - (var(--catalog-columns) - 1) * var(--gap)) / var(--catalog-columns) * 5 / 8 - 34px * 5 / 8);
  min-block-size:calc(2 * (var(--catalog-photo-height) + 142px) + var(--gap) + 42px + 64px);
}
#product-view{
  --detail-info-height:calc(130px + 1.5em);
  min-block-size:calc(max((var(--view-width) - 28px) * 5 / 16, var(--detail-info-height)) + 20px);
}
@media (max-width:920px){.catalog-view{--catalog-columns:2;}}
@media (max-width:700px){#product-view{min-block-size:calc(var(--view-width) * 5 / 8 + 20px + var(--detail-info-height) + 20px);}}
@media (max-width:560px){.catalog-view{--catalog-columns:1;}}

.product__specs{
  margin:0;
  padding-left:18px;
  color:var(--muted);
  font-size:14px;
}
.product__specs li{margin:4px 0;}

/* Services steps */
.steps{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:12px;
}
.step{
  display:flex;
  gap:12px;
  align-items:flex-start;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow);
}
.step__num{
  width:34px;
  height:34px;
  border-radius:999px;
  background:rgba(11,94,168,.10);
  color:var(--accent-2);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  flex:0 0 auto;
}
.step__title{font-weight:700; margin-bottom:2px;}
.step__text{color:var(--muted); font-size:14px;}

/* Timeline */
.timeline{
  position:relative;
  display:grid;
  gap:14px;
  padding-left:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:14px;
  top:0;
  bottom:0;
  width:2px;
  background:var(--border);
}
.timeline__item{
  display:grid;
  grid-template-columns:90px 1fr;
  gap:14px;
  align-items:flex-start;
  position:relative;
}
.timeline__year{
  font-weight:700;
  color:var(--accent-2);
  padding-left:22px;
  position:relative;
}
.timeline__year::before{
  content:"";
  position:absolute;
  left:8px;
  top:.45em;
  width:12px;
  height:12px;
  border-radius:999px;
  background:var(--bg);
  border:2px solid var(--accent);
}
.timeline__content{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow);
}
.timeline__title{font-weight:700; margin-bottom:4px;}
.timeline__text{color:var(--muted); font-size:14px;}

/* Contacts */
.kv{display:grid; gap:10px; margin-top:8px;}
.kv__row{display:grid; grid-template-columns:140px 1fr; gap:10px;}
.kv__k{color:var(--muted);}
.kv__v{color:var(--text);}

.note{
  margin-top:12px;
  font-size:13px;
  color:var(--muted);
  border-top:1px solid var(--border);
  padding-top:12px;
}

.map{
  width:100%;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  background:#fff;
}
.map iframe{
  width:100%;
  height:320px;
  border:0;
  display:block;
}
.small{font-size:13px; margin-top:10px;}

/* Footer */
.site-footer{
  border-top:1px solid var(--border);
  background:var(--bg);
}
.footer__inner{
  display:grid;
  grid-template-columns: 1fr 1fr auto;
  gap:18px;
  padding:22px 0;
  align-items:start;
}
.footer__title{font-weight:700; margin-bottom:8px;}
.footer__lines{display:flex; flex-direction:column; gap:6px;}
.footer__phone{display:grid; grid-template-columns:max-content minmax(0, 1fr); column-gap:14px; align-items:baseline;}
.footer__phone .footer__link{white-space:nowrap;}
.footer__link{color:var(--text); text-decoration:none;}
.footer__link:hover{color:var(--accent); text-decoration:none;}
.footer__text{color:var(--muted); font-size:14px;}
.footer__copy{color:var(--muted); font-size:14px; white-space:normal;}
.footer__col--right{display:flex; align-items:flex-start; justify-content:flex-end;}

/* Responsive */
@media (max-width: 920px){
  .hero__inner{grid-template-columns:1fr;}
  .topbar__contacts{display:none;}
  .burger{display:inline-flex; align-items:center; justify-content:center;}
  .site-nav{display:none;}
  .site-nav.is-open{display:block;}
  .nav-list{flex-direction:column; align-items:stretch; padding:12px 0;}
  .nav-link{padding:10px 12px;}
  .grid--3{grid-template-columns:repeat(2, minmax(0, 1fr));}
  .footer__inner{grid-template-columns:1fr; gap:12px;}
  .footer__col--right{justify-content:flex-start;}
}

@media (max-width: 560px){
  .grid--2{grid-template-columns:1fr;}
  .grid--3{grid-template-columns:1fr;}
  .kv__row{grid-template-columns:1fr; gap:4px;}
  .hero__title{font-size:30px;}
}

/* Registration: header action and responsive modal use the existing design. */
.topbar__inner{flex-wrap:wrap;}
.topbar__inner .brand{min-width:0;}
.topbar__actions{display:flex; align-items:center; gap:10px; margin-left:auto; flex-shrink:0;}
.registration-button{font:inherit;}
body.registration-open{overflow:hidden;}
.registration-dialog{
  width:min(460px, calc(100% - 32px));
  max-height:calc(100vh - 32px);
  max-height:calc(100dvh - 32px);
  margin:auto;
  padding:24px;
  overflow-y:auto;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--bg);
  color:var(--text);
  box-shadow:var(--shadow);
}
.registration-dialog::backdrop{background:rgba(8,15,28,.65);}
.registration-dialog__header{display:flex; align-items:center; justify-content:space-between; gap:12px;}
.registration-dialog__header h2{margin:0; font-size:22px;}
.registration-dialog__close{
  flex:0 0 auto;
  width:44px;
  height:44px;
  padding:0;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--panel);
  color:var(--text);
  font:inherit;
  font-size:26px;
  cursor:pointer;
}
.registration-dialog__close:hover{border-color:var(--accent);}
.registration-dialog__description{margin:12px 0 20px; color:var(--muted); font-size:14px;}
.registration-field{margin-bottom:16px;}
.registration-field label{display:block; margin-bottom:6px; font-weight:600;}
.registration-field input{
  display:block;
  width:100%;
  min-width:0;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--bg);
  color:var(--text);
  font:inherit;
  font-size:16px;
}
.registration-field input[aria-invalid="true"]{border-color:#b42318;}
.registration-field__hint{margin:6px 0 0; color:var(--muted); font-size:13px;}
.registration-field__error{margin:6px 0 0; color:#b42318; font-size:14px;}
.registration-dialog__status{margin:16px 0 0; color:var(--muted); font-size:14px;}
.registration-dialog__status[data-state="success"]{color:var(--accent-2);}
.registration-dialog__status[data-state="error"]{color:#b42318;}
.registration-dialog__submit{width:100%;}
.registration-dialog__submit:disabled{opacity:.65; cursor:wait;}
.registration-button:focus-visible,
.registration-dialog button:focus-visible,
.registration-field input:focus-visible{outline:2px solid var(--accent); outline-offset:3px;}
@media (max-width:640px){
  .topbar__inner{padding:4px 0; row-gap:6px;}
  .brand__logo{height:36px; max-width:150px;}
  .brand__logo-wrap{padding:2px 8px;}
  .topbar__inner .brand{flex:1 1 100%;}
  .registration-dialog{padding:20px;}
}

/* Auth reuses the registration modal; notices and profiles contain only text. */
.auth-button{font:inherit;}
.auth-button[hidden], #registration-open[hidden]{display:none;}
body.auth-open{overflow:hidden;}
.account-profile{margin:20px 0;}
.account-profile dt{color:var(--muted); font-size:14px;}
.account-profile dd{margin:6px 0 0; font-size:18px; overflow-wrap:anywhere;}
.auth-notice{margin-top:0; padding-top:10px; padding-bottom:10px;}
.auth-button:focus-visible{outline:2px solid var(--accent); outline-offset:3px;}
.auth-button:disabled{opacity:.65; cursor:wait;}
.admin-workspace { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; align-items: start; }
.admin-workspace section, .admin-item { min-width: 0; overflow-wrap: anywhere; }
.admin-items { display: grid; gap: 16px; margin-bottom: 16px; }
.admin-item, .admin-editor { padding: 20px; }
.admin-item h3 { margin-top: 0; }
.admin-visibility { color: var(--muted); }
.admin-editor textarea { width: 100%; min-width: 0; padding: 10px; border: 1px solid var(--border); border-radius: 8px; font: inherit; resize: vertical; }
.admin-checkbox { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; }
.admin-checkbox input { flex: 0 0 auto; }
.admin-photo { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--border); }
.admin-photo img { display: block; width: 100%; height: auto; max-height: 260px; object-fit: contain; margin-bottom: 16px; }
.admin-photo input[type="file"] { display: block; width: 100%; min-width: 0; margin-top: 8px; }
#admin-content[hidden], #admin-access[hidden], #admin-more[hidden], #admin-login[hidden] { display: none; }
.nav-list > li[hidden] { display: none; }
@media (max-width: 760px) { .admin-workspace { grid-template-columns: minmax(0, 1fr); } }