:root {
  --bg: #F7F5EE;
  --surface: #FFFFFF;
  --ink: #17241F;
  --ink-soft: #55645C;
  --teal: #0E4A3D;
  --teal-dark: #0A362D;
  --amber: #C08A3E;
  --border: #E4E0D3;
  --brick: #A8432E;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'IBM Plex Sans', system-ui, sans-serif; color: var(--ink); background: var(--bg); line-height: 1.6; }
h1, h2, h3 { font-family: 'IBM Plex Serif', Georgia, serif; font-weight: 600; color: var(--ink); }
a { color: inherit; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

.topbar { background: var(--teal-dark); color: #D9E6E0; font-size: 13px; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; height: 36px; }
.topbar-contacts a, .topbar-social a { color: #D9E6E0; text-decoration: none; margin-right: 16px; }
.topbar-social a { margin-right: 10px; margin-left: 0; }

.site-header { position: sticky; top: 0; background: rgba(247,245,238,0.95); backdrop-filter: blur(4px); border-bottom: 1px solid var(--border); z-index: 40; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-family: 'IBM Plex Serif', serif; font-weight: 600; font-size: 19px; text-decoration: none; color: var(--teal); }
.brand span { color: var(--amber); }
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a { text-decoration: none; font-size: 14px; color: var(--ink-soft); white-space: nowrap; }
.site-nav a:hover { color: var(--teal); }
.nav-cta { background: var(--teal); color: #fff !important; padding: 8px 16px; border-radius: 5px; }
.nav-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); display: block; }

.hero { padding: 60px 0 50px; }
.hero-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.hero-text { max-width: 580px; }
.eyebrow { color: var(--amber); font-size: 13px; font-weight: 500; letter-spacing: 0.5px; margin-bottom: 14px; }
.hero h1 { font-size: 36px; line-height: 1.25; margin-bottom: 16px; }
.hero-sub { color: var(--ink-soft); font-size: 15.5px; margin-bottom: 20px; max-width: 480px; }
.hero-badges { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.badge-pill { background: #E7F1EA; color: #1F6B3F; font-size: 12.5px; font-weight: 500; padding: 6px 14px; border-radius: 20px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 6px; font-size: 14.5px; font-weight: 500; text-decoration: none; border: none; cursor: pointer; }
.btn-primary { background: var(--teal); color: #fff; }
.btn-ghost { border: 1px solid var(--border); color: var(--ink); background: transparent; }
.hero-graphic { flex-shrink: 0; }

.why { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 60px 0; }
.why-inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
.why p { color: var(--ink-soft); font-size: 15px; margin-bottom: 14px; }
.why-stats { display: flex; flex-direction: column; gap: 16px; }
.stat-box { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 18px; text-align: center; }
.stat-box strong { display: block; font-size: 26px; color: var(--teal); font-family: 'IBM Plex Serif', serif; }
.stat-box span { font-size: 13px; color: var(--ink-soft); }

section { padding: 60px 0; }
.section-title { font-size: 26px; margin-bottom: 10px; }
.section-sub { color: var(--ink-soft); font-size: 15px; margin-bottom: 28px; max-width: 560px; }

.solutions-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 22px; }
.solution-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 22px; }
.solution-card h3 { font-size: 17px; margin-bottom: 8px; }
.solution-card p { color: var(--ink-soft); font-size: 14.5px; }

.team-preview { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 22px; margin-bottom: 24px; }
.team-card { text-align: left; }
.team-avatar { width: 60px; height: 60px; border-radius: 50%; background: var(--teal); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 600; margin-bottom: 12px; overflow: hidden; font-size: 18px; }
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-card h3 { font-size: 16px; margin-bottom: 2px; }
.team-role { color: var(--ink-soft); font-size: 13.5px; }

.news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 22px; margin-bottom: 24px; }
.news-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; text-decoration: none; display: block; }
.news-card-body { padding: 18px; }
.news-card h3 { font-size: 15.5px; margin-bottom: 6px; }
.news-date { color: var(--ink-soft); font-size: 12.5px; }
.loading-text { color: var(--ink-soft); font-size: 14px; }

.calc-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 26px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--ink-soft); margin-bottom: 6px; font-weight: 500; }
.field input, .field select { width: 100%; padding: 10px 12px; border-radius: 6px; border: 1px solid var(--border); background: #FCFCFA; font-size: 14.5px; }
.calc-result { display: flex; justify-content: space-between; align-items: center; background: var(--bg); border-radius: 6px; padding: 14px 16px; margin: 18px 0 10px; }
.calc-result strong { font-size: 22px; color: var(--teal); }
.calc-note { font-size: 13px; color: var(--ink-soft); }
.calc-note a { color: var(--teal); }
.list-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 14px; }

.auth-section { padding: 70px 0; }
.auth-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 32px; }
.auth-card h1 { font-size: 22px; margin-bottom: 18px; }
.auth-switch { font-size: 13.5px; color: var(--ink-soft); margin-top: 14px; text-align: center; }
.auth-switch a { color: var(--teal); font-weight: 500; }
.form-error-box { background: #F7E7E3; color: var(--brick); padding: 10px 14px; border-radius: 6px; font-size: 13.5px; margin-bottom: 16px; }
.req-heading { font-size: 15px; margin: 22px 0 6px; padding-top: 18px; border-top: 1px solid var(--border); }
.req-heading span { font-size: 12px; font-weight: 400; color: var(--ink-soft); }
.req-note { font-size: 12.5px; color: var(--ink-soft); margin-bottom: 14px; }

.page-hero { background: var(--surface); border-bottom: 1px solid var(--border); padding: 44px 0; }
.page-hero h1 { font-size: 28px; margin-bottom: 6px; }
.page-hero p { color: var(--ink-soft); }

.article-body { font-size: 15.5px; color: var(--ink); }

.contact-page, .contact-inner { background: var(--teal); }
.contact-page { padding: 70px 0; }
.contact-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; color: #fff; }
.section-title.light, .section-sub.light { color: #fff; }
.section-sub.light { color: #CFE3DB; }
.contact-details { display: flex; flex-direction: column; gap: 12px; }
.contact-row { text-decoration: none; color: #fff; font-size: 15px; }

.site-footer { background: var(--teal-dark); color: #C9D7D0; padding: 50px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 30px; margin-bottom: 30px; }
.footer-brand { color: #fff !important; }
.footer-brand span { color: var(--amber); }
.footer-about { font-size: 13.5px; margin-top: 10px; color: #A9BEB4; }
.site-footer h4 { font-size: 14px; color: #fff; margin-bottom: 12px; }
.site-footer a { display: block; color: #C9D7D0; text-decoration: none; font-size: 13.5px; margin-bottom: 8px; }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #1E4A3F; padding-top: 18px; font-size: 12.5px; color: #8FA39A; text-align: center; }

.catalog-layout { display: grid; grid-template-columns: 260px 1fr; gap: 0 32px; align-items: start; }

.prod-sidebar { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface); position: sticky; top: 80px; }
.prod-sidebar-header { background: var(--teal); color: #fff; font-size: 14px; font-weight: 600; padding: 14px 16px; letter-spacing: 0.3px; }
.prod-all-link { display: block; padding: 12px 16px; font-size: 14px; color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--border); }
.prod-all-link:hover, .prod-all-link.active { background: var(--bg); color: var(--teal); }
.prod-group { border-bottom: 1px solid var(--border); }
.prod-group:last-child { border-bottom: none; }
.prod-group-toggle {
  width: 100%; display: flex; align-items: center; gap: 10px; padding: 12px 16px;
  background: transparent; border: none; cursor: pointer; text-align: left; font-size: 13.5px;
  color: var(--ink); font-family: inherit; font-weight: 500;
}
.prod-group-icon { color: var(--teal); flex-shrink: 0; display: flex; }
.prod-group:hover .prod-group-toggle, .prod-group.open .prod-group-toggle { background: var(--bg); color: var(--teal); }
.prod-subitems {
  max-height: 0; overflow: hidden; transition: max-height 0.25s ease;
  background: #FBFAF6;
}
.prod-group:hover .prod-subitems, .prod-group.open .prod-subitems { max-height: 400px; }
.prod-subitems a {
  display: block; padding: 9px 16px 9px 44px; font-size: 13px; color: var(--ink-soft); text-decoration: none;
  border-top: 1px solid var(--border);
}
.prod-subitems a:first-child { border-top: none; }
.prod-subitems a:hover, .prod-subitems a.active { color: var(--teal); font-weight: 500; }
.catalog-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.catalog-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.catalog-table th { text-align: left; padding: 12px 16px; background: var(--bg); border-bottom: 1px solid var(--border); font-weight: 500; color: var(--ink-soft); white-space: nowrap; }
.catalog-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.catalog-table tr:last-child td { border-bottom: none; }

.cart-link { font-weight: 500; }
.btn-sm { padding: 7px 14px; font-size: 13px; width: 100%; }
.cart-toast-inline { background: #E7F1EA; color: #1F6B3F; padding: 10px 14px; border-radius: 6px; font-size: 13.5px; margin-bottom: 18px; }
.cart-toast-inline a { color: #1F6B3F; font-weight: 500; text-decoration: underline; }
.shop-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 18px; }
.shop-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; }
.shop-card-link { color: inherit; text-decoration: none; display: block; flex: 1; }
.shop-card-link:hover .shop-card-body h3 { color: var(--teal); }
.shop-card-image { height: 140px; background: var(--bg); display: flex; align-items: center; justify-content: center; }
.shop-card-image img { width: 100%; height: 100%; object-fit: cover; }
.shop-card-body { padding: 14px; display: flex; flex-direction: column; gap: 6px; }
.shop-card-cat { font-size: 11.5px; color: var(--amber); font-weight: 500; }
.shop-card-body h3 { font-size: 14.5px; line-height: 1.35; }
.shop-card-spec { font-size: 12.5px; color: var(--ink-soft); }
.shop-card-footer { display: flex; flex-direction: column; gap: 8px; padding: 0 14px 14px; }
.shop-card-price { font-size: 15.5px; font-weight: 600; color: var(--teal); }

.product-detail { display: grid; grid-template-columns: 320px 1fr; gap: 36px; align-items: start; }
.product-detail-image { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; height: 320px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-detail-image img { width: 100%; height: 100%; object-fit: cover; }
.product-detail-info h1 { font-size: 26px; margin: 6px 0 14px; }
.product-detail-desc { color: var(--ink-soft); font-size: 15px; margin-bottom: 18px; }
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
.spec-table th { text-align: left; padding: 8px 0; width: 160px; color: var(--ink-soft); font-weight: 500; font-size: 13.5px; border-bottom: 1px solid var(--border); }
.spec-table td { padding: 8px 0; font-size: 14px; border-bottom: 1px solid var(--border); }
.product-detail-price { font-size: 26px; font-weight: 600; color: var(--teal); margin-bottom: 14px; }
.product-detail-form { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.product-detail-form label { font-size: 13.5px; color: var(--ink-soft); }
.product-detail-form input { padding: 9px 10px; border-radius: 6px; border: 1px solid var(--border); }
.product-doc-link { display: inline-block; color: var(--teal); font-size: 14px; text-decoration: underline; }

@media (max-width: 760px) {
  .product-detail { grid-template-columns: 1fr; }
  .catalog-layout { grid-template-columns: 1fr; }
  .catalog-sidebar { position: static; }

  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute; top: 64px; left: 0; right: 0; background: var(--bg);
    flex-direction: column; align-items: flex-start; padding: 16px 24px; gap: 16px;
    border-bottom: 1px solid var(--border); display: none;
  }
  .site-nav.open { display: flex; }
  .hero-inner { flex-direction: column; text-align: center; }
  .hero-text { max-width: 100%; }
  .hero-actions, .hero-badges { justify-content: center; }
  .hero-graphic { order: -1; }
  .why-inner { grid-template-columns: 1fr; }
  .contact-inner { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .topbar-inner { font-size: 11px; }
}