.catalog-page { background: var(--paper); }
.catalog-page .site-header { background: rgba(9, 10, 8, .96); }
.catalog-page .desktop-nav a[aria-current="page"] { color: var(--lime); }

.catalog-main { padding-top: 68px; }
.catalog-intro { padding: 82px max(24px, calc((100vw - var(--max)) / 2)) 64px; color: var(--white); background: var(--black); }
.catalog-intro-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .55fr); gap: 7vw; align-items: end; margin-top: 28px; }
.catalog-intro h1 { margin: 0; font-size: clamp(54px, 6vw, 78px); line-height: .92; }
.catalog-intro-grid > p { max-width: 470px; margin: 0 0 6px; color: rgba(255, 255, 255, .68); font-size: 18px; }

.catalog-search { margin-top: 58px; }
.catalog-search > label { display: block; margin-bottom: 12px; color: rgba(255, 255, 255, .58); font-family: var(--mono); font-size: 11px; text-transform: uppercase; }
.search-field { position: relative; }
.search-field input { width: 100%; height: 76px; padding: 0 70px 0 22px; color: var(--white); border: 1px solid rgba(255, 255, 255, .28); border-radius: 0; outline: none; background: #11130f; font: 500 22px/1 var(--sans); }
.search-field input::placeholder { color: rgba(255, 255, 255, .38); }
.search-field input:focus { border-color: var(--lime); box-shadow: inset 5px 0 0 var(--lime); }
.search-field button { position: absolute; top: 50%; right: 13px; width: 48px; height: 48px; padding: 0; transform: translateY(-50%); color: var(--white); border: 1px solid rgba(255, 255, 255, .22); background: transparent; font-size: 27px; line-height: 1; }

.catalog-browser { padding: 50px max(24px, calc((100vw - var(--max)) / 2)) 110px; }
.catalog-controls { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; padding-bottom: 36px; border-bottom: 1px solid var(--line); }
.category-filters { display: flex; flex-wrap: wrap; gap: 8px; }
.category-filters button { min-height: 38px; padding: 0 13px; color: var(--black); border: 1px solid #b9bab2; border-radius: 3px; background: transparent; font-family: var(--mono); font-size: 10px; text-transform: uppercase; }
.category-filters button:hover { border-color: var(--black); }
.category-filters button[aria-pressed="true"] { color: var(--black); border-color: var(--lime); background: var(--lime); }
.sort-control { display: grid; flex: 0 0 205px; gap: 8px; color: var(--muted); font-family: var(--mono); font-size: 10px; text-transform: uppercase; }
.sort-control select { height: 38px; padding: 0 32px 0 10px; color: var(--black); border: 1px solid #b9bab2; border-radius: 0; background: var(--paper); font: 12px var(--sans); }

.catalog-summary { display: flex; justify-content: space-between; gap: 24px; align-items: baseline; padding: 48px 0 24px; }
.catalog-summary h2 { margin: 0; font-size: 32px; }
.catalog-summary p { margin: 0; color: var(--muted); font-family: var(--mono); font-size: 11px; text-transform: uppercase; }

.catalog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--black); border-left: 1px solid var(--line); }
.system-card { position: relative; display: flex; min-width: 0; min-height: 310px; flex-direction: column; padding: 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #f7f6f0; }
.system-card.is-focus { box-shadow: inset 0 5px 0 var(--lime); }
.system-card-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; min-height: 36px; }
.system-card-category { color: #315b1c; font-family: var(--mono); font-size: 9px; line-height: 1.4; text-transform: uppercase; }
.system-card-focus { padding: 4px 6px; color: var(--black); background: var(--lime); font-family: var(--mono); font-size: 8px; text-transform: uppercase; white-space: nowrap; }
.system-card h3 { margin: 22px 0 12px; font-size: 25px; line-height: 1.02; }
.system-card > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.45; }
.system-card-result { margin-top: auto; padding-top: 22px; color: var(--black); font-family: var(--mono); font-size: 10px; line-height: 1.45; text-transform: uppercase; }
.system-card-result::before { content: "→ "; color: #315b1c; }

.catalog-empty { padding: 72px 24px; text-align: center; border-top: 1px solid var(--black); }
.catalog-empty strong { font-size: 28px; }
.catalog-empty p { color: var(--muted); }
.catalog-empty button { margin-top: 15px; padding: 13px 18px; border: 1px solid var(--black); background: transparent; font-family: var(--mono); font-size: 11px; text-transform: uppercase; }

.catalog-contact { padding: 90px max(24px, calc((100vw - var(--max)) / 2)); color: var(--black); background: var(--lime); }
.catalog-contact h2 { max-width: 880px; margin: 24px 0 42px; font-size: clamp(44px, 5.8vw, 76px); line-height: .94; }
.catalog-contact > a { display: inline-flex; padding-bottom: 6px; border-bottom: 3px solid var(--black); font-size: 24px; font-weight: 600; }

@media (max-width: 980px) {
  .catalog-intro-grid { grid-template-columns: 1fr; gap: 28px; }
  .catalog-intro-grid > p { max-width: 680px; }
  .catalog-controls { flex-direction: column; }
  .sort-control { width: 240px; flex-basis: auto; }
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .catalog-main { padding-top: 58px; }
  .catalog-intro { padding: 52px 18px 44px; }
  .catalog-intro h1 { font-size: 40px; }
  .catalog-intro-grid > p { font-size: 16px; }
  .catalog-search { margin-top: 40px; }
  .search-field input { height: 64px; padding-left: 16px; font-size: 17px; }
  .catalog-browser { padding: 32px 18px 80px; }
  .category-filters { width: 100%; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; scrollbar-width: thin; }
  .category-filters button { flex: 0 0 auto; }
  .sort-control { width: 100%; }
  .catalog-summary { padding-top: 34px; }
  .catalog-summary h2 { font-size: 25px; }
  .catalog-grid { grid-template-columns: 1fr; }
  .system-card { min-height: 275px; padding: 22px 18px; }
  .system-card h3 { font-size: 24px; }
  .catalog-contact { padding: 72px 18px; }
  .catalog-contact h2 { font-size: 42px; }
}