:root {
  --bg: #f7f5f1;
  --bg-soft: #efece6;
  --surface: #ffffff;
  --ink: #1c1f1d;
  --ink-muted: #5c635e;
  --line: #d9d4cb;
  --accent: #2f4f3e;
  --accent-hover: #243d30;
  --warn: #8a5a12;
  --warn-bg: #f7efe2;
  --wood: #c4a574;
  --tech: #8a9094;
  --radius: 4px;
  --shadow: 0 12px 40px rgba(28, 31, 29, 0.08);
  --font: "Manrope", system-ui, sans-serif;
  --display: "Instrument Serif", Georgia, serif;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }
button, input, select { font: inherit; }
h1, h2, h3 {
  font-family: var(--display);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1em; color: var(--ink-muted); }
.container { width: min(100% - 2rem, var(--container)); margin-inline: auto; }
.narrow { width: min(100% - 2rem, 760px); }
.muted { color: var(--ink-muted); font-size: 0.92rem; }
.kicker {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-weight: 600;
}
.eyebrow {
  display: block;
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-bottom: 0.25rem;
}
.lead { font-size: 1.08rem; max-width: 42rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.7rem 1.25rem;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: 0.2s ease;
}
.btn:hover { background: var(--ink); color: #fff; }
.btn--accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--accent:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
.btn--light { background: rgba(255,255,255,0.92); border-color: transparent; }
.btn--light:hover { background: #fff; color: var(--ink); }
.btn--ghost { background: transparent; }
.btn--sm { min-height: 40px; padding: 0.45rem 0.9rem; font-size: 0.9rem; }
.btn--block { width: 100%; }
.text-link { color: var(--accent); font-weight: 600; text-decoration: none; }
.text-link:hover { text-decoration: underline; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 245, 241, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 1rem;
}
.brand { text-decoration: none; }
.brand__text {
  font-family: var(--display);
  font-size: 1.45rem;
  letter-spacing: 0.02em;
}
.brand__text b { font-weight: 400; color: var(--accent); }
.nav__right { display: flex; align-items: center; gap: 0.75rem; }
.nav__links { display: flex; align-items: center; gap: 0.25rem; }
.nav__link {
  border: 0;
  background: transparent;
  padding: 0.55rem 0.8rem;
  color: var(--ink-muted);
  cursor: pointer;
  text-decoration: none;
}
.nav__link.is-active, .nav__link:hover { color: var(--ink); }
.nav__city {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  min-width: 110px;
}
.nav__city-label { font-size: 0.7rem; color: var(--ink-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.nav__city-value { font-weight: 600; }
.nav__toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  background: var(--surface);
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 0 11px;
}
.nav__toggle span { display: block; height: 2px; background: var(--ink); }

.hero {
  position: relative;
  min-height: min(92vh, 820px);
  display: grid;
  align-items: end;
  color: #fff;
  overflow: hidden;
}
.hero__media {
  position: absolute;
  inset: 0;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroZoom 18s ease-out forwards;
}
.hero__shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(18, 22, 20, 0.25) 0%, rgba(18, 22, 20, 0.72) 70%, rgba(18, 22, 20, 0.88) 100%);
}
.hero__content {
  position: relative;
  z-index: 1;
  padding: 5rem 0 3.5rem;
  animation: rise 0.9s ease both;
}
.brand-hero {
  font-family: var(--display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: #fff;
  margin: 0 0 0.75rem;
  letter-spacing: 0.04em;
}
.hero h1 { color: #fff; margin-bottom: 0.75rem; }
.hero .lead { color: rgba(255,255,255,0.88); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0 1rem; }
.hero__cities { color: rgba(255,255,255,0.75); font-size: 0.95rem; margin: 0; }

.page-hero {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 10% 0%, rgba(47, 79, 62, 0.08), transparent 40%),
    var(--bg);
}
.page-hero h1 { max-width: 18ch; }
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin-bottom: 1rem;
}
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { color: var(--accent); }

.section { padding: 4rem 0; }
.section--soft { background: var(--bg-soft); }
.section--search { padding: 0; margin-top: -2.5rem; position: relative; z-index: 2; }
.section-head {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: end;
  margin-bottom: 1.75rem;
}
.section-head p { max-width: 34rem; margin: 0; }

.search-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr) auto;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.search-panel label { display: grid; gap: 0.35rem; font-size: 0.85rem; color: var(--ink-muted); }
.search-panel select {
  min-height: 48px;
  border: 1px solid var(--line);
  background: var(--bg);
  padding: 0 0.75rem;
  color: var(--ink);
}

.param-grid, .tech-grid, .company-grid, .project-grid {
  display: grid;
  gap: 1rem;
}
.param-grid { grid-template-columns: repeat(3, 1fr); }
.tech-grid { grid-template-columns: repeat(3, 1fr); }
.company-grid { grid-template-columns: repeat(2, 1fr); }
.project-grid { grid-template-columns: repeat(4, 1fr); }

.param-card, .tech-card {
  display: flex;
  align-items: center;
  min-height: 88px;
  padding: 1.1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
}
.param-card:hover, .tech-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  color: var(--ink);
}
.tech-card {
  background:
    linear-gradient(135deg, rgba(196, 165, 116, 0.18), transparent 55%),
    var(--surface);
  font-weight: 600;
}

.company-card, .project-card {
  background: var(--surface);
  border: 1px solid var(--line);
  display: grid;
  overflow: hidden;
}
.company-card { grid-template-columns: 180px 1fr; }
.project-card { grid-template-rows: 140px 1fr; }
.company-card__body, .project-card__body { padding: 1.1rem 1.15rem 1.25rem; }
.company-card__top {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: start;
  margin-bottom: 0.65rem;
}
.company-card__top h3, .project-card__body h3 { margin: 0; }
.company-card__top a, .project-card__body a { text-decoration: none; }
.company-card__badges { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.75rem; }
.company-card__actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.tech-visual {
  position: relative;
  min-height: 140px;
  background:
    linear-gradient(145deg, #ebe7df, #d8d2c8 40%, #cfc8bc),
    repeating-linear-gradient(90deg, transparent, transparent 18px, rgba(28,31,29,0.04) 18px, rgba(28,31,29,0.04) 19px);
  text-decoration: none;
  overflow: hidden;
}
.tech-visual::after {
  content: "";
  position: absolute;
  inset: auto 12% 18% 12%;
  height: 38%;
  border: 1px solid rgba(28,31,29,0.18);
  background: rgba(255,255,255,0.35);
}
.tech-visual--gazobeton { background: linear-gradient(145deg, #e8e6e2, #c9c5bf); }
.tech-visual--kirpich { background: linear-gradient(145deg, #e8d6c8, #c9a48c); }
.tech-visual--keramicheskij-blok { background: linear-gradient(145deg, #e5d3c4, #b98d72); }
.tech-visual--karkas { background: linear-gradient(145deg, #e7dcc8, #c4a574); }
.tech-visual--modulnye, .tech-visual--prefab { background: linear-gradient(145deg, #d9e0df, #9fb0ab); }
.tech-visual--keramzitoblok, .tech-visual--penoblok { background: linear-gradient(145deg, #e4e0d8, #b7b1a5); }
.tech-visual--kleenyj-brus { background: linear-gradient(145deg, #e8d7bc, #b98a4d); }
.tech-visual__label {
  position: absolute;
  left: 0.75rem;
  bottom: 0.75rem;
  z-index: 1;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  background: rgba(247,245,241,0.9);
  padding: 0.25rem 0.45rem;
}
.tech-visual--large { min-height: 320px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink-muted);
}
.badge--ok { border-color: rgba(47,79,62,0.35); color: var(--accent); background: rgba(47,79,62,0.08); }
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.5rem 0; }
.chip {
  font-size: 0.78rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink-muted);
}
.chips--large .chip { padding: 0.35rem 0.7rem; }
.meta-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0.85rem 0 0;
}
.meta-row dt { font-size: 0.72rem; color: var(--ink-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.meta-row dd { margin: 0.15rem 0 0; font-weight: 600; }
.fact-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
}
.fact-list li {
  font-size: 0.85rem;
  padding: 0.25rem 0.55rem;
  background: var(--bg-soft);
  border: 1px solid var(--line);
}
.fact-list--lg { gap: 0.6rem; }
.fact-list--lg li { font-size: 0.95rem; padding: 0.45rem 0.75rem; }

.compare-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--ink-muted);
  cursor: pointer;
  white-space: nowrap;
}
.compare-toggle input { accent-color: var(--accent); }
.compare-toggle--btn {
  border: 1px solid var(--line);
  padding: 0.7rem 1rem;
  background: var(--surface);
}

.catalog-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1.5rem;
  align-items: start;
}
.filters {
  position: sticky;
  top: 84px;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1rem;
  display: grid;
  gap: 1rem;
}
.filters__group h3 { font-family: var(--font); font-size: 0.85rem; font-weight: 700; margin: 0 0 0.55rem; }
.filter-chips { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.filter-chip {
  display: inline-flex;
  cursor: pointer;
}
.filter-chip input { position: absolute; opacity: 0; pointer-events: none; }
.filter-chip span {
  display: inline-block;
  font-size: 0.78rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--line);
  background: var(--bg);
}
.filter-chip input:checked + span {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.catalog-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1.25rem;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0.55rem 0.8rem;
  min-width: min(100%, 260px);
}
.search-box input { border: 0; outline: 0; width: 100%; background: transparent; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}
.stat-row div {
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
}
.stat-row strong {
  display: block;
  font-family: var(--display);
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}
.stat-row span { color: var(--ink-muted); font-size: 0.85rem; }

.alert {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  background: var(--bg-soft);
}
.alert--warn {
  border-color: rgba(138, 90, 18, 0.35);
  background: #f7efe2;
  color: var(--warn);
}
.alert__note { margin: 0.5rem 0 0; color: var(--ink-muted); }
.sources-list, .checked-list, .feature-list, .contact-dl {
  padding-left: 1.1rem;
  color: var(--ink-muted);
}
.feature-list { list-style: none; padding: 0; display: grid; gap: 0.55rem; }
.feature-list li {
  display: flex;
  gap: 0.6rem;
  padding: 0.7rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--line);
}
.feature-list span { color: var(--accent); font-weight: 700; }
.contact-dl { display: grid; gap: 0.85rem; padding: 0; }
.contact-dl div { display: grid; gap: 0.2rem; }
.contact-dl dt { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-muted); }
.contact-dl dd { margin: 0; font-weight: 600; color: var(--ink); }

.table-wrap { overflow-x: auto; margin: 1rem 0; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; background: var(--surface); }
th, td { padding: 0.75rem 0.9rem; border-bottom: 1px solid var(--line); text-align: left; }
th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-muted); background: var(--bg-soft); }
.project-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

.compare-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 50;
  background: var(--ink);
  color: #fff;
  padding: 0.85rem 0;
  box-shadow: 0 -8px 30px rgba(0,0,0,0.18);
}
.compare-bar__inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}
.compare-bar__list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.compare-bar__list span {
  background: rgba(255,255,255,0.1);
  padding: 0.35rem 0.65rem;
  font-size: 0.9rem;
}
.compare-bar .btn--ghost { color: #fff; border-color: rgba(255,255,255,0.35); }
.compare-bar .btn--ghost:hover { background: #fff; color: var(--ink); }

.city-picker[hidden] { display: none !important; }
.city-picker {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.city-picker__backdrop { position: absolute; inset: 0; background: rgba(18,22,20,0.45); }
.city-picker__dialog {
  position: relative;
  width: min(100%, 520px);
  max-height: min(80vh, 640px);
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}
.city-picker__head { display: flex; justify-content: space-between; gap: 1rem; align-items: start; }
.city-picker__close { border: 0; background: transparent; font-size: 1.5rem; cursor: pointer; }
.city-picker__search {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin: 1rem 0;
  border: 1px solid var(--line);
  padding: 0.65rem 0.8rem;
}
.city-picker__search input { border: 0; outline: 0; width: 100%; }
.city-picker__list { display: grid; gap: 0.35rem; }
.city-picker__list a {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0.8rem;
  text-decoration: none;
  border: 1px solid transparent;
}
.city-picker__list a:hover { border-color: var(--line); background: var(--bg); color: var(--ink); }
.city-picker__name { font-weight: 600; }
.city-picker__meta { color: var(--ink-muted); font-size: 0.85rem; }

.site-footer {
  margin-top: 2rem;
  padding: 3rem 0 1.5rem;
  background: #1c1f1d;
  color: rgba(255,255,255,0.78);
}
.site-footer a { color: #fff; text-decoration: none; }
.site-footer .brand__text b { color: #9bb5a4; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-title {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
  color: rgba(255,255,255,0.55);
}
.footer-grid a { display: block; margin-bottom: 0.4rem; }
.footer-city-btn {
  margin-top: 0.75rem;
  border: 0;
  background: transparent;
  color: #9bb5a4;
  cursor: pointer;
  padding: 0;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.88rem;
}
.not-found { padding: 6rem 0; }
.empty-state {
  padding: 2rem;
  border: 1px dashed var(--line);
  text-align: center;
  color: var(--ink-muted);
}

#compare-root .compare-table-wrap { overflow-x: auto; border: 1px solid var(--line); }
#compare-root table { min-width: 720px; }
#compare-root th:first-child, #compare-root td:first-child {
  position: sticky;
  left: 0;
  background: var(--bg-soft);
  z-index: 1;
}
.compare-empty {
  padding: 2rem;
  border: 1px dashed var(--line);
  text-align: center;
}

[data-reveal] { animation: rise 0.8s ease both; }

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}
@keyframes heroZoom {
  from { transform: scale(1.06); }
  to { transform: scale(1); }
}

@media (max-width: 980px) {
  .search-panel { grid-template-columns: 1fr 1fr; }
  .param-grid, .tech-grid, .project-grid { grid-template-columns: repeat(2, 1fr); }
  .company-grid { grid-template-columns: 1fr; }
  .company-card { grid-template-columns: 140px 1fr; }
  .catalog-layout { grid-template-columns: 1fr; }
  .filters { position: static; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .project-layout, .footer-grid, .section-head { grid-template-columns: 1fr; display: grid; }
  .section-head { align-items: start; }
}
@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__toggle { display: inline-flex; }
  body.nav-open .nav__links {
    display: flex;
    position: absolute;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 0.75rem;
  }
  .search-panel, .param-grid, .tech-grid, .project-grid { grid-template-columns: 1fr; }
  .company-card { grid-template-columns: 1fr; }
  .hero { min-height: 78vh; align-items: center; }
  .hero__content { padding-top: 7rem; }
  .meta-row { grid-template-columns: 1fr; }
  .compare-bar__inner { flex-direction: column; align-items: stretch; }
  .footer-bottom { flex-direction: column; }
}