.ka-hero{min-height:400px;display:flex;align-items:center;position:relative;overflow:hidden;padding:104px 40px 50px;border-bottom:1px solid var(--border2);background-image:linear-gradient(90deg,rgba(10,12,15,.76) 0%,rgba(10,12,15,.54) 48%,rgba(10,12,15,.32) 100%),url('/zakupki-banner.png');background-size:cover;background-position:center;background-repeat:no-repeat;background-attachment:fixed}
  .ka-inner{position:relative;z-index:2;width:min(100%,1000px);margin:0 auto}
  .ka-breadcrumb{font-family:var(--mono);font-size:11px;letter-spacing:.09em;margin-bottom:18px}.ka-breadcrumb a{color:#b4bdc6;text-decoration:none}.ka-breadcrumb a:hover,.ka-breadcrumb span{color:var(--accent)}
  .ka-hero h1{font-family:var(--head);font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.03em;max-width:950px;margin:0}.ka-hero h1 strong{color:var(--accent)}
  .ka-hero p{max-width:780px;margin-top:18px;color:#d0d5da;font-size:15px;line-height:1.7}
  .ka-article{max-width:1000px;margin:0 auto;padding:46px 40px}.ka-lead{color:#cbd2d8!important;font-size:17px!important;line-height:1.8!important;margin-bottom:34px!important}
  .ka-article h2{font-family:var(--head);font-size:clamp(22px,2.7vw,34px);line-height:1.25;margin:42px 0 16px}.ka-article h2 strong{color:var(--accent)}
  .ka-article h3{font-family:var(--head);font-size:18px;line-height:1.35;margin:28px 0 10px}.ka-article p{color:#b8c0c8;font-size:14px;line-height:1.8;margin-bottom:16px}
  .ka-article ul{margin:14px 0 24px 18px;color:#b8c0c8}.ka-article li{margin-bottom:9px;font-size:14px;line-height:1.7}
  .ka-table-wrap{overflow-x:auto;margin:24px 0 32px;border:1px solid var(--border2)}.ka-table{width:100%;min-width:720px;border-collapse:collapse;background:var(--bg2)}
  .ka-table th,.ka-table td{padding:15px 16px;border-right:1px solid var(--border2);border-bottom:1px solid var(--border2);text-align:left;vertical-align:top}.ka-table th:last-child,.ka-table td:last-child{border-right:none}.ka-table tr:last-child td{border-bottom:none}
  .ka-table th{font-family:var(--mono);color:var(--accent);font-size:11px;letter-spacing:.08em;text-transform:uppercase;background:var(--bg3)}.ka-table td{color:#b8c0c8;font-size:13px;line-height:1.55}
  .ka-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin:24px 0 34px;border:1px solid var(--border2);background:var(--border2)}.ka-card{padding:24px;background:var(--bg2)}
  .ka-card span,.ka-summary-card span,.ka-related-card span{font-family:var(--mono);color:var(--accent);font-size:11px;letter-spacing:.12em}.ka-card strong{display:block;font-family:var(--head);font-size:16px;margin:12px 0 8px}.ka-card p{font-size:13px;margin:0}
  .ka-note{margin:28px 0;padding:22px 24px;border-left:2px solid var(--accent);background:var(--bg2)}.ka-note strong{display:block;font-family:var(--head);font-size:15px;margin-bottom:7px}.ka-note p{margin:0}
  .ka-summary{position:relative;max-width:none;padding:46px 40px;overflow:hidden;background-image:linear-gradient(90deg,rgba(10,12,15,.86) 0%,rgba(10,12,15,.74) 50%,rgba(10,12,15,.87) 100%),url('/zakupki-banner.png');background-size:cover;background-position:center;background-repeat:no-repeat;background-attachment:fixed;border-top:1px solid var(--border2);border-bottom:1px solid var(--border2)}
  .ka-summary-inner{max-width:1120px;margin:0 auto}.ka-summary-grid,.ka-related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin-top:24px;border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.08)}
  .ka-summary-card{padding:22px;background:rgba(10,12,15,.82);backdrop-filter:blur(3px)}.ka-summary-card strong{display:block;font-family:var(--head);font-size:15px;margin:10px 0 6px}.ka-summary-card p{color:#c0c7ce;font-size:12px;line-height:1.6;margin:0}
  .ka-related{max-width:1120px;margin:0 auto;padding:42px 0 8px}.ka-related-grid{border-color:var(--border2);background:var(--border2)}.ka-related-card{display:block;padding:22px;background:var(--bg2);color:var(--text);text-decoration:none;transition:background .2s ease}.ka-related-card:hover{background:var(--bg3)}.ka-related-card strong{display:block;font-family:var(--head);font-size:14px;margin:10px 0 6px}.ka-related-card p{color:#aeb7c0;font-size:12px;line-height:1.6;margin:0}
  .ka-footer{max-width:1120px;margin:0 auto;padding:28px 0 34px;display:flex;gap:12px;flex-wrap:wrap}
  @media(max-width:1180px){.ka-related,.ka-footer{margin-left:40px;margin-right:40px}}
  @media(max-width:900px){.ka-hero,.ka-summary{background-attachment:scroll}.ka-grid,.ka-summary-grid,.ka-related-grid{grid-template-columns:1fr}}
  @media(max-width:700px){.ka-hero{min-height:350px;padding:88px 20px 38px;background-size:cover;background-position:center;background-attachment:scroll}.ka-hero h1{font-size:clamp(28px,9vw,42px)}.ka-article{padding-left:20px;padding-right:20px}.ka-summary{padding:38px 20px;background-size:cover;background-position:center;background-attachment:scroll}.ka-related,.ka-footer{margin-left:20px;margin-right:20px}}


/* NEW ARTICLE ONLY: details for navigation and checklists. Existing shared CSS untouched. */
.ka-revision{font-family:var(--mono);font-size:11px!important;color:#91a8b4!important;letter-spacing:.025em;margin-top:-12px;margin-bottom:28px!important}
.ka-article h2[id]{scroll-margin-top:88px}
.ka-toc{padding:24px 26px;border:1px solid var(--border2);background:var(--bg2);margin:28px 0 36px}
.ka-toc>strong{display:block;font-family:var(--head);font-size:15px;margin-bottom:18px;color:var(--text)}
.ka-toc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 22px}
.ka-toc-grid a{font-family:var(--mono);font-size:12px;line-height:1.6;color:var(--accent);text-decoration:none}
.ka-toc-grid a:hover,.ka-source-list a:hover{text-decoration:underline;text-underline-offset:3px}
.ka-article a{color:var(--accent);text-underline-offset:3px}
.ka-formula{padding:22px 24px;margin:22px 0 27px;border:1px solid rgba(0,212,255,.22);background:var(--bg2)}
.ka-formula span{display:block;color:var(--accent);font-family:var(--mono);font-size:12px;margin-bottom:12px;letter-spacing:.04em}
.ka-formula code{display:block;white-space:normal;overflow-wrap:anywhere;color:var(--text);font-size:15px;line-height:1.75}
.ka-check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:26px 0 32px}
.ka-check-card{background:var(--bg2);border:1px solid var(--border2);padding:14px 22px}
.ka-check-card h3{margin:8px 0 14px;font-size:15px}
.ka-check-card ul{margin:0 0 12px 18px}
.ka-source-list{padding-left:22px;margin:18px 0 8px!important}
.ka-source-list li{overflow-wrap:anywhere;font-size:13px!important}
.ka-related{max-width:1120px}
@media(min-width:769px) and (max-width:880px){.contact-section{grid-template-columns:minmax(0,1fr);gap:30px}.contact-section>*{min-width:0}}
@media(max-width:700px){.ka-toc{padding:20px 18px}.ka-toc-grid,.ka-check-grid{grid-template-columns:1fr}.ka-article .ka-formula{padding:18px 16px}.ka-article .ka-table{min-width:650px}}