:root {
  --ink: #202124;
  --ink-soft: #55585d;
  --paper: #ffffff;
  --paper-soft: #f3f3f1;
  --line: #d8d8d4;
  --brand: #e5541a;
  --brand-dark: #b8370a;
  --carbon: #17191b;
  --success: #26734d;
  --warning: #9a6200;
  --muted: #6e7176;
  --radius: 2px;
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --container: 1180px;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); }
a { color: inherit; text-decoration-color: currentColor; text-underline-offset: .2em; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }

.container { width: min(calc(100% - 2rem), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 100; top: .5rem; left: .5rem; padding: .75rem 1rem; color: white; background: var(--carbon); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.topbar { color: #dedede; background: var(--carbon); font-size: .8125rem; }
.topbar__inner { min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.topbar__contacts { display: flex; gap: var(--space-6); }
.topbar a { color: white; text-decoration: none; }
.topbar a:hover { text-decoration: underline; }

.header-main { min-height: 96px; display: flex; align-items: center; justify-content: space-between; gap: var(--space-8); }
.brand { display: inline-flex; align-items: center; gap: var(--space-3); color: var(--carbon); text-decoration: none; }
.brand__mark { width: 44px; height: 44px; display: grid; grid-template-columns: repeat(3, 1fr); align-items: end; gap: 3px; transform: skewX(-12deg); }
.brand__mark i { display: block; background: var(--brand); }
.brand__mark i:nth-child(1) { height: 56%; }
.brand__mark i:nth-child(2) { height: 78%; }
.brand__mark i:nth-child(3) { height: 100%; }
.brand__text { display: grid; line-height: 1.12; }
.brand__text strong { font-size: 1rem; letter-spacing: .035em; text-transform: uppercase; }
.brand__text small { margin-top: var(--space-1); color: var(--muted); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: var(--space-8); font-size: .875rem; font-weight: 700; text-transform: uppercase; letter-spacing: .045em; }
.main-nav a { position: relative; padding-block: 2.25rem; text-decoration: none; }
.main-nav a::after { content: ""; position: absolute; right: 0; bottom: 1.5rem; left: 0; height: 2px; background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform .16s ease; }
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after { transform: scaleX(1); }

.page-heading { position: relative; padding-block: var(--space-16); color: white; background: var(--carbon); overflow: hidden; }
.page-heading::after { content: ""; position: absolute; top: -35%; right: -4%; width: 410px; height: 190%; opacity: .12; background: repeating-linear-gradient(90deg, transparent 0 25px, var(--brand) 25px 58px); transform: skewX(-13deg); }
.page-heading__grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(270px, .55fr); gap: var(--space-16); align-items: end; }
.page-heading--compact { padding-block: var(--space-12); }
.eyebrow { margin: 0 0 var(--space-3); color: var(--brand); font-size: .75rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 860px; margin-bottom: var(--space-4); font-size: clamp(2.25rem, 5vw, 4.5rem); line-height: .98; letter-spacing: -.04em; }
.lead { max-width: 720px; margin: 0; color: #d1d1d1; font-size: clamp(1.05rem, 2vw, 1.25rem); }
.contact-panel { display: grid; gap: var(--space-2); padding: var(--space-6); border: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.06); }
.contact-panel span { color: #b8b8b8; font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; }
.contact-panel a { width: fit-content; text-decoration: none; }

.catalog-section { padding-block: var(--space-12) var(--space-16); background: var(--paper-soft); }
.filters { display: grid; grid-template-columns: 1.45fr repeat(4, 1fr); gap: var(--space-4); padding: var(--space-6); background: var(--paper); box-shadow: 0 8px 24px rgba(21,22,23,.06); }
.filters label { display: block; margin-bottom: var(--space-2); color: var(--ink-soft); font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.filters input, .filters select { width: 100%; height: 46px; padding-inline: var(--space-3); color: var(--ink); border: 1px solid var(--line); border-radius: 0; background: white; }
.filters input:focus, .filters select:focus { outline: 3px solid rgba(229,84,26,.22); border-color: var(--brand); }
.filter-actions { grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: var(--space-3); }
.button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; padding: .7rem 1.35rem; border: 1px solid var(--brand); border-radius: var(--radius); color: white; background: var(--brand); font-weight: 700; text-decoration: none; cursor: pointer; }
.button:hover { border-color: var(--brand-dark); background: var(--brand-dark); }
.button--secondary { color: var(--ink); border-color: var(--line); background: transparent; }
.button--secondary:hover { color: var(--brand-dark); border-color: var(--brand); background: white; }
.button:focus-visible, a:focus-visible, select:focus-visible, input:focus-visible { outline: 3px solid rgba(229,84,26,.32); outline-offset: 3px; }

.results-header { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4); margin-block: var(--space-10) var(--space-5); }
.results-header h2 { margin: 0; font-size: 1.75rem; }
.results-header span { color: var(--muted); }
.tender-list { display: grid; gap: var(--space-4); }
.tender-card { border: 1px solid var(--line); background: var(--paper); transition: border-color .15s ease, transform .15s ease; }
.tender-card:hover { border-color: #b8b8b3; transform: translateY(-2px); }
.tender-card__meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
.tender-card > .tender-card__meta { padding: var(--space-5) var(--space-6) 0; }
.status, .category-label { display: inline-flex; min-height: 26px; align-items: center; padding: .25rem .55rem; font-size: .75rem; font-weight: 700; letter-spacing: .035em; text-transform: uppercase; }
.status { color: var(--success); border: 1px solid currentColor; }
.status--commission { color: var(--warning); }
.status--completed { color: var(--muted); }
.status--b2b { color: #315b91; }
.category-label { color: var(--ink-soft); background: var(--paper-soft); }
.tender-card__body { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(320px, .55fr); gap: var(--space-10); padding: var(--space-4) var(--space-6) var(--space-6); }
.lot-number { margin-bottom: var(--space-3); color: var(--muted); font-size: .8125rem; text-transform: uppercase; letter-spacing: .035em; }
.tender-card h3 { margin: 0; font-size: clamp(1.25rem, 2.3vw, 1.65rem); line-height: 1.22; }
.tender-card h3 a { text-decoration: none; }
.tender-card h3 a:hover { color: var(--brand-dark); text-decoration: underline; }
.tender-facts, .detail-facts { margin: 0; }
.tender-facts { display: grid; gap: var(--space-3); }
.tender-facts div { padding-bottom: var(--space-3); border-bottom: 1px solid var(--line); }
.tender-facts dt, .detail-facts dt { color: var(--muted); font-size: .7rem; font-weight: 700; letter-spacing: .055em; text-transform: uppercase; }
.tender-facts dd, .detail-facts dd { margin: var(--space-1) 0 0; font-weight: 700; }
.tender-card__footer { min-height: 52px; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding-inline: var(--space-6); border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; }
.arrow-link { color: var(--brand-dark); font-weight: 700; text-decoration: none; }
.arrow-link:hover { text-decoration: underline; }

.empty-state { padding: var(--space-16) var(--space-6); border: 1px dashed #b8b8b3; text-align: center; background: white; }
.empty-state__icon { display: block; margin-bottom: var(--space-4); color: var(--brand); font-size: 3rem; }
.empty-state h3 { margin-bottom: var(--space-2); font-size: 1.5rem; }
.empty-state p { color: var(--muted); }

.detail-layout { padding-block: var(--space-6) var(--space-16); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-8); color: var(--muted); font-size: .875rem; }
.tender-detail { max-width: 960px; }
.tender-detail header { padding-bottom: var(--space-8); border-bottom: 1px solid var(--line); }
.tender-detail .lot-number { margin-top: var(--space-6); }
.tender-detail h1 { color: var(--carbon); font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.05; }
.detail-facts { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }
.detail-facts div { min-height: 116px; padding: var(--space-6); border-right: 1px solid var(--line); }
.detail-facts div:first-child { padding-left: 0; }
.detail-facts div:last-child { border-right: 0; }
.documents-section { padding-block: var(--space-10); }
.documents-section h2 { font-size: 1.75rem; }
.document-list { display: grid; gap: var(--space-2); margin: 0; padding: 0; list-style: none; }
.document-list a, .document-link { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-4); border: 1px solid var(--line); color: var(--ink); background: white; text-decoration: none; }
.document-list a:hover, .document-link:hover { border-color: var(--brand); }
.document-list a span:last-child, .document-link span:last-child { display: grid; }
.document-list small, .document-link small { color: var(--muted); }
.document-icon { width: 36px; height: 36px; display: inline-grid; place-items: center; flex: 0 0 auto; color: white; background: var(--brand); font-weight: 700; }
.back-link { font-weight: 700; }

.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: var(--space-16); align-items: start; padding-block: var(--space-12) var(--space-16); }
.prose { min-width: 0; font-size: 1rem; line-height: 1.7; }
.prose h2 { margin-top: var(--space-10); font-size: 1.75rem; line-height: 1.2; }
.prose h3 { margin-top: var(--space-8); font-size: 1.25rem; }
.prose a { color: var(--brand-dark); }
.prose table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.prose th, .prose td { padding: var(--space-3); border: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { background: var(--paper-soft); }
.content-block { margin-bottom: var(--space-5); }
.content-block--table { overflow-x: auto; }
.content-contact { position: sticky; top: var(--space-4); display: grid; gap: var(--space-2); padding: var(--space-6); border: 1px solid var(--line); background: var(--paper-soft); }
.content-contact span { color: var(--muted); font-size: .75rem; font-weight: 700; text-transform: uppercase; }
.content-contact a { font-weight: 700; text-decoration: none; }
.muted { color: var(--muted); }

.site-footer { padding-top: var(--space-12); color: #d7d7d7; background: var(--carbon); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-10); }
.footer-title { color: white; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.footer-label { margin-bottom: var(--space-2); color: #9d9d9d; font-size: .75rem; font-weight: 700; text-transform: uppercase; }
.footer-grid p { margin: var(--space-2) 0 0; }
.footer-grid a { display: block; width: fit-content; color: white; text-decoration: none; }
.footer-bottom { margin-top: var(--space-10); padding-block: var(--space-4); border-top: 1px solid #333638; color: #96999b; font-size: .8125rem; }
.error-page { min-height: 55vh; display: grid; align-content: center; justify-items: start; padding-block: var(--space-16); }
.error-page h1 { color: var(--carbon); }

.subscription-layout { max-width: 780px; padding-block: var(--space-12) var(--space-16); }
.subscription-form { display: grid; gap: var(--space-6); padding: var(--space-8); border: 1px solid var(--line); background: var(--paper); }
.form-field { min-width: 0; margin: 0; padding: 0; border: 0; }
.form-field > label, .form-field legend { display: block; margin-bottom: var(--space-2); font-weight: 700; }
.form-field input[type="email"] { width: 100%; min-height: 46px; padding-inline: var(--space-3); border: 1px solid var(--line); }
.form-field ul { display: grid; gap: var(--space-2); margin: 0; padding: 0; list-style: none; }
.form-field li label, .consent-field label { display: flex; align-items: flex-start; gap: var(--space-2); font-weight: 400; }
.form-field input[type="checkbox"] { width: 1.1rem; height: 1.1rem; margin-top: .2rem; accent-color: var(--brand); }
.form-help { margin: var(--space-2) 0 0; color: var(--muted); font-size: .875rem; }
.field-error, .form-errors { margin: var(--space-2) 0 0; color: #a32222; font-weight: 700; }
.form-success { margin-bottom: var(--space-4); padding: var(--space-4); color: var(--success); border: 1px solid currentColor; }
.form-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.message-page { min-height: 55vh; display: grid; align-content: center; justify-items: start; padding-block: var(--space-16); }
.message-page h1 { color: var(--carbon); }

@media (max-width: 960px) {
  .header-main { align-items: flex-start; flex-direction: column; padding-block: var(--space-5); }
  .main-nav { width: 100%; gap: var(--space-6); overflow-x: auto; }
  .main-nav a { padding-block: var(--space-3); white-space: nowrap; }
  .main-nav a::after { bottom: .35rem; }
  .page-heading__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .contact-panel { max-width: 520px; }
  .filters { grid-template-columns: repeat(2, 1fr); }
  .filter-search { grid-column: 1 / -1; }
  .tender-card__body { grid-template-columns: 1fr; gap: var(--space-6); }
  .detail-facts { grid-template-columns: repeat(2, 1fr); }
  .detail-facts div:nth-child(2n) { border-right: 0; }
  .content-layout { grid-template-columns: 1fr; gap: var(--space-8); }
  .content-contact { position: static; }
}

@media (max-width: 600px) {
  .container { width: min(calc(100% - 1.25rem), var(--container)); }
  .topbar__inner { padding-block: var(--space-2); align-items: flex-start; flex-direction: column; }
  .topbar__contacts { flex-wrap: wrap; gap: var(--space-2) var(--space-4); }
  .header-main { min-height: auto; }
  .brand__text strong { font-size: .875rem; }
  .main-nav { gap: var(--space-5); font-size: .75rem; }
  .page-heading { padding-block: var(--space-10); }
  .page-heading::after { right: -60%; }
  h1 { font-size: 2.3rem; }
  .filters { grid-template-columns: 1fr; padding: var(--space-4); }
  .filter-search, .filter-actions { grid-column: auto; }
  .filter-actions { justify-content: stretch; }
  .filter-actions > * { flex: 1; }
  .tender-card > .tender-card__meta, .tender-card__body { padding-inline: var(--space-4); }
  .tender-card__footer { min-height: auto; align-items: flex-start; flex-direction: column; padding: var(--space-4); }
  .detail-facts { grid-template-columns: 1fr; }
  .detail-facts div, .detail-facts div:first-child { min-height: auto; padding: var(--space-4) 0; border-right: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .subscription-form { padding: var(--space-5); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

.pagination { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 1rem; margin-block: 2rem; }