*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --navy:       #0b2444;
      --blue:       #0d3f7a;
      --blue-mid:   #1f5aa0;
      --blue-light: #2b6dbf;
      --sky:        #dcdcdc;
      --sky-mid:    #eef3f9;
      --steel:      #7ea1c4;
      --text:       #0b2444;
      --text-mid:   #2c4a6e;
      --text-dim:   #4a6282;
      --border:     rgba(0,0,0,0.09);
      --shadow-sm:  0 2px 12px rgba(0,0,0,0.07);
      --shadow-md:  0 6px 24px rgba(0,0,0,0.10);
      --shadow-lg:  0 16px 48px rgba(0,0,0,0.14);
      --radius:     4px;
      --radius-lg:  8px;
      --font-display: 'Barlow Condensed', sans-serif;
      --font-body:    'Barlow', sans-serif;
      --transition:   0.2s ease;
    }

    html { scroll-behavior: smooth; }
    body { font-family: var(--font-body); background: var(--sky); color: var(--text); font-size: 16px; line-height: 1.6; overflow-x: hidden; }
    img { display: block; max-width: 100%; }
    a { text-decoration: none; color: inherit; }
    ul { list-style: none; padding: 0; }
    .container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }

    /* ── HEADER ── */
    .header { background: rgba(255,255,255,0.96); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-sm); position: sticky; top: 0; z-index: 100; }
    .header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
    .header-logo img { height: 54px; width: auto; }
    nav { display: flex; align-items: center; gap: 4px; }
    nav a { font-size: 14px; font-weight: 600; color: var(--navy); padding: 8px 14px; border-radius: var(--radius); transition: background var(--transition), color var(--transition); }
    nav a:hover, nav a.active { background: var(--sky-mid); color: var(--blue-mid); }
    .hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
    .hamburger span { display: block; width: 22px; height: 2px; background: var(--navy); border-radius: 1px; }

    /* ── MOBILE NAV ── */
    .mobile-nav { display: none; position: fixed; top: 70px; left: 0; right: 0; bottom: 0; background: white; z-index: 99; padding: 24px 32px; flex-direction: column; overflow-y: auto; }
    .mobile-nav.open { display: flex; }
    .mobile-nav a { font-family: var(--font-display); font-size: 20px; font-weight: 700; text-transform: uppercase; color: var(--navy); padding: 14px 0; border-bottom: 1px solid var(--border); transition: color var(--transition); }
    .mobile-nav a:hover { color: var(--blue-mid); }

    /* ── PAGE HERO ── */
    .page-hero { background: var(--navy); border-bottom: 3px solid var(--blue-mid); padding: 52px 0 44px; }
    .page-hero-inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
    .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); margin-bottom: 14px; }
    .breadcrumb a { color: var(--steel); transition: color var(--transition); }
    .breadcrumb a:hover { color: white; }
    .breadcrumb span { color: rgba(255,255,255,0.3); }
    .page-hero h1 { font-family: var(--font-display); font-size: clamp(36px, 5vw, 60px); font-weight: 800; text-transform: uppercase; color: white; line-height: 1.0; }
    .page-hero h1 span { color: var(--steel); }
    .page-hero-meta { text-align: right; }
    .page-hero-meta p { font-size: 14px; color: rgba(255,255,255,0.45); margin-bottom: 4px; }
    .product-count-badge { font-family: var(--font-display); font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius); padding: 6px 14px; display: inline-block; }

    /* ── LAYOUT ── */
    .products-layout { display: grid; grid-template-columns: 280px 1fr; gap: 32px; padding: 40px 0 72px; align-items: start; }

    /* ── FILTER SIDEBAR ── */
    .filter-sidebar { position: sticky; top: 90px; }
    .filter-card { background: white; border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow: hidden; }
    .filter-header { background: var(--navy); padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; }
    .filter-header h3 { font-family: var(--font-display); font-size: 14px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: white; }
    .filter-clear { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--steel); background: none; border: none; cursor: pointer; transition: color var(--transition); padding: 0; }
    .filter-clear:hover { color: white; }
    .filter-group { border-bottom: 1px solid var(--border); }
    .filter-group:last-child { border-bottom: none; }
    .filter-group-title { font-family: var(--font-display); font-size: 12px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text-dim); padding: 14px 20px 10px; }
    .filter-options { padding: 0 20px 14px; display: flex; flex-direction: column; gap: 2px; }
    .filter-chip { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--radius); cursor: pointer; transition: background var(--transition); user-select: none; }
    .filter-chip:hover { background: var(--sky-mid); }
    .filter-chip.active { background: var(--sky-mid); }
    .chip-box { width: 16px; height: 16px; min-width: 16px; border: 1.5px solid var(--steel); border-radius: 3px; background: white; display: flex; align-items: center; justify-content: center; transition: background var(--transition), border-color var(--transition); }
    .filter-chip.active .chip-box { background: var(--blue-mid); border-color: var(--blue-mid); }
    .chip-check { width: 9px; height: 9px; stroke: white; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; opacity: 0; transition: opacity var(--transition); }
    .filter-chip.active .chip-check { opacity: 1; }
    .chip-label { font-size: 14px; color: var(--text-mid); flex: 1; }
    .filter-chip.active .chip-label { color: var(--navy); font-weight: 500; }
    .chip-count { font-size: 11px; font-weight: 600; color: var(--steel); background: var(--sky); border-radius: 20px; padding: 1px 7px; min-width: 22px; text-align: center; }

    /* ── SEARCH BAR ── */
    .search-wrap { margin-bottom: 20px; position: relative; }
    .search-icon { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; stroke: var(--steel); fill: none; stroke-width: 2; stroke-linecap: round; pointer-events: none; }
    .search-input { width: 100%; font-family: var(--font-body); font-size: 14px; color: var(--navy); background: white; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 11px 40px 11px 38px; box-shadow: var(--shadow-sm); outline: none; transition: border-color var(--transition), box-shadow var(--transition); }
    .search-input:focus { border-color: var(--blue-mid); box-shadow: 0 0 0 3px rgba(31,90,160,0.1); }
    .search-input::placeholder { color: var(--steel); }
    .search-clear { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; padding: 2px; display: none; align-items: center; justify-content: center; color: var(--steel); transition: color var(--transition); }
    .search-clear:hover { color: var(--navy); }
    .search-clear.visible { display: flex; }
    .search-clear svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }

    /* ── TOOLBAR ── */
    .results-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; flex-wrap: wrap; gap: 12px; }
    .results-summary { font-size: 14px; color: var(--text-dim); }
    .results-summary strong { color: var(--navy); font-weight: 600; }
    .sort-wrap { display: flex; align-items: center; gap: 10px; }
    .sort-wrap label { font-size: 13px; font-weight: 600; color: var(--text-dim); }
    .sort-wrap select { font-family: var(--font-body); font-size: 13px; color: var(--navy); background: white; border: 1px solid var(--border); border-radius: var(--radius); padding: 7px 12px; outline: none; cursor: pointer; transition: border-color var(--transition); }
    .sort-wrap select:focus { border-color: var(--blue-mid); }

    /* ── ACTIVE FILTER TAGS ── */
    .active-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
    .active-filters:empty { display: none; }
    .filter-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(31,90,160,0.1); border: 1px solid rgba(31,90,160,0.2); border-radius: 20px; padding: 4px 10px 4px 12px; font-size: 12px; font-weight: 600; color: var(--blue-mid); cursor: pointer; transition: background var(--transition); }
    .filter-tag:hover { background: rgba(31,90,160,0.18); }
    .filter-tag-x { width: 14px; height: 14px; stroke: var(--blue-mid); fill: none; stroke-width: 2; stroke-linecap: round; }

    /* ── PRODUCT GRID ── */
    .product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .product-card { background: white; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition); display: flex; flex-direction: column; }
    .product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .product-card.hidden { display: none; }

    .product-img-wrap { position: relative; height: 200px; background: white; overflow: hidden; display: flex; align-items: center; justify-content: center; }
    .product-img-wrap img { width: 100%; height: 100%; object-fit: contain; padding: 0; display: block; transition: transform 0.35s ease; }
    .product-card:hover .product-img-wrap img { transform: scale(1.04); }
    .img-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; width: 100%; height: 100%; }
    .img-placeholder svg { width: 52px; height: 52px; stroke: var(--steel); fill: none; stroke-width: 1.2; stroke-linecap: round; stroke-linejoin: round; opacity: 0.5; }
    .img-placeholder span { font-family: var(--font-display); font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--steel); opacity: 0.6; }
    .product-badge { position: absolute; top: 12px; left: 12px; font-family: var(--font-display); font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; padding: 3px 8px; border-radius: 2px; }
    .badge-premium { background: var(--blue); color: white; }
    .badge-standard { background: var(--steel); color: white; }
    .product-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
    .product-meta { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; flex-wrap: wrap; }
    .meta-tag { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); background: var(--sky); border-radius: 2px; padding: 2px 7px; }
    .meta-tag.code { color: var(--navy); background: var(--sky-mid); border: 1px solid var(--border); }
    .product-card h3 { font-family: var(--font-display); font-size: 17px; font-weight: 700; text-transform: uppercase; color: var(--navy); line-height: 1.2; margin-bottom: 8px; }
    .product-desc { font-size: 13px; color: var(--text-dim); line-height: 1.6; margin-bottom: 16px; flex: 1; }
    .product-footer { display: flex; flex-direction: column; gap: 12px; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--border); }
    .product-price { font-family: var(--font-display); font-size: 15px; font-weight: 700; color: var(--text-dim); line-height: 1; }
    .product-price span { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--steel); display: block; margin-bottom: 3px; }
    .btn-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
    .btn-learn { display: inline-flex; align-items: center; justify-content: center; gap: 5px; font-family: var(--font-display); font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: white; background: var(--blue); padding: 9px 10px; border-radius: var(--radius); transition: background var(--transition), transform 0.15s; border: none; cursor: pointer; white-space: nowrap; }
    .btn-learn:hover { background: var(--blue-mid); transform: translateY(-1px); }
    .btn-learn::after { content: '→'; }
    .btn-spec { display: inline-flex; align-items: center; justify-content: center; gap: 5px; font-family: var(--font-display); font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--blue-mid); background: var(--sky-mid); border: 1px solid rgba(31,90,160,0.2); padding: 9px 10px; border-radius: var(--radius); transition: background var(--transition), border-color var(--transition); cursor: pointer; white-space: nowrap; }
    .btn-spec:hover { background: var(--sky); border-color: var(--blue-mid); }

    /* ── EMPTY STATE ── */
    .empty-state { grid-column: 1 / -1; text-align: center; padding: 64px 20px; display: none; }
    .empty-state.visible { display: block; }
    .empty-icon { width: 56px; height: 56px; background: var(--sky-mid); border: 1px solid var(--border); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
    .empty-icon svg { width: 24px; height: 24px; stroke: var(--steel); fill: none; stroke-width: 1.5; stroke-linecap: round; }
    .empty-state h4 { font-family: var(--font-display); font-size: 20px; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
    .empty-state p { font-size: 14px; color: var(--text-dim); }

    /* ── MOBILE FILTER TOGGLE ── */
    .mobile-filter-toggle { display: none; width: 100%; align-items: center; justify-content: center; gap: 8px; font-family: var(--font-display); font-size: 14px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--navy); background: white; border: 1px solid var(--border); border-radius: var(--radius); padding: 11px 20px; cursor: pointer; margin-bottom: 16px; box-shadow: var(--shadow-sm); }
    .mobile-filter-toggle svg { width: 16px; height: 16px; stroke: var(--navy); fill: none; stroke-width: 2; stroke-linecap: round; }

    /* ── SPEC MODAL ── */
    .spec-modal { position: fixed; inset: 0; z-index: 9999; display: none; }
    .spec-modal.active { display: block; }
    .spec-modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.6); }
    .spec-modal-content { position: relative; width: min(900px, 92%); height: 85vh; margin: 5vh auto; background: white; border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.3); display: flex; flex-direction: column; }
    .spec-modal-header { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; background: var(--navy); flex-shrink: 0; }
    .spec-modal-header h3 { font-family: var(--font-display); font-size: 15px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: white; }
    .spec-modal-close { background: none; border: none; color: rgba(255,255,255,0.7); font-size: 20px; cursor: pointer; line-height: 1; padding: 0 2px; transition: color var(--transition); }
    .spec-modal-close:hover { color: white; }
    .spec-modal iframe { flex: 1; width: 100%; border: none; background: #f4f4f4; }

    /* ── FOOTER ── */
    footer { background: var(--navy); border-top: 3px solid var(--blue-mid); padding: 56px 0 0; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .footer-brand img { height: 50px; width: auto; margin-bottom: 16px; filter: brightness(0) invert(1); }
    .footer-brand p { font-size: 14px; color: rgba(255,255,255,0.4); line-height: 1.7; max-width: 260px; }
    .footer-col-title { font-size: 11px; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--steel); margin-bottom: 18px; }
    .footer-links li + li { margin-top: 10px; }
    .footer-links a { font-size: 14px; color: rgba(255,255,255,0.5); transition: color var(--transition); }
    .footer-links a:hover { color: white; }
    .footer-contact p { font-size: 14px; color: rgba(255,255,255,0.5); line-height: 1.9; }
    .footer-contact a { color: rgba(255,255,255,0.5); transition: color var(--transition); }
    .footer-contact a:hover { color: white; }
    .footer-cta-btn { display: inline-block; margin-top: 14px; background: var(--blue-mid); color: white; font-family: var(--font-display); font-size: 13px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 11px 22px; border-radius: var(--radius); transition: background var(--transition); }
    .footer-cta-btn:hover { background: var(--blue-light); }
    .footer-cta p { font-size: 14px; color: rgba(255,255,255,0.45); line-height: 1.7; }
    .footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 18px 0; flex-wrap: wrap; gap: 8px; }
    .footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.25); }

    /* ── BACK TO TOP ── */
    #back-top { position: fixed; bottom: 24px; right: 24px; width: 40px; height: 40px; background: var(--blue); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.3s, background 0.2s; z-index: 50; }
    #back-top:hover { background: var(--blue-mid); }
    #back-top svg { width: 16px; height: 16px; stroke: white; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }

    /* ── RESPONSIVE ── */
    @media (max-width: 1024px) { .product-grid { grid-template-columns: repeat(2, 1fr); } }
    @media (max-width: 860px) {
      nav, .header-inner .btn-nav { display: none; }
      .hamburger { display: flex; }
      .products-layout { grid-template-columns: 1fr; }
      .filter-sidebar { position: static; }
      .mobile-filter-toggle { display: flex; }
      .filter-card { display: none; }
      .filter-card.open { display: block; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }
    @media (max-width: 560px) {
      .container { padding: 0 20px; }
      .product-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; align-items: flex-start; }
    }
/* ── FLOATING CONTACT BUTTONS ── */
.floating-contact {
  position: fixed;
  right: 24px;
  bottom: 80px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 120;
}

.float-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--blue);
  color: white;
  padding: 12px 18px;
  border-radius: 999px;
  box-shadow: var(--shadow-lg);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}

.float-btn:hover {
  background: var(--blue-mid);
  transform: translateY(-2px);
}

.float-btn svg {
  width: 18px;
  height: 18px;
  stroke: white;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.call-btn {
  background: var(--navy);
}

.text-btn {
  background: var(--blue-mid);
}

@media (max-width: 600px) {
  .floating-contact {
    right: 16px;
    bottom: 70px;
  }

  .float-btn {
    padding: 11px 16px;
    font-size: 13px;
  }
}

/* ── REPAIR KITS BANNER ── */
.repair-kits-banner {
  background: var(--navy);
  border-bottom: 2px solid var(--blue-mid);
  border-top: 1px solid rgba(255,255,255,0.06);
}
.repair-kits-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
  flex-wrap: wrap;
}
.repair-kits-left {
  display: flex;
  align-items: center;
  gap: 14px;
}
.repair-kits-left svg {
  width: 22px;
  height: 22px;
  min-width: 22px;
  stroke: var(--steel);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.repair-kits-label {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: white;
  line-height: 1.2;
}
.repair-kits-sub {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  margin-top: 2px;
}
.repair-kits-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: white;
  background: var(--blue-mid);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 10px 20px;
  border-radius: var(--radius);
  transition: background var(--transition), transform 0.15s;
  white-space: nowrap;
}
.repair-kits-btn:hover {
  background: var(--blue-light);
  transform: translateY(-1px);
}
.repair-kits-btn svg {
  width: 14px;
  height: 14px;
  stroke: white;
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
@media (max-width: 600px) {
  .repair-kits-inner { flex-direction: column; align-items: flex-start; }
  .repair-kits-btn { width: 100%; justify-content: center; }
}