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

    :root {
      --navy:        #020b1a;
      --navy-mid:    #051228;
      --navy-card:   #071730;
      --navy-border: #0d2545;
      --blue-bright: #0ea5e9;
      --blue-glow:   #38bdf8;
      --blue-accent: #1d4ed8;
      --cyan:        #06b6d4;
      --white:       #f8fafc;
      --muted:       #94a3b8;
      --dim:         #475569;
      --gold:        #f59e0b;
      --green:       #10b981;
      --red:         #ef4444;
      --purple:      #7c3aed;
      --font: 'Montserrat', sans-serif;
    }

    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font);
      background: #fff;
      color: #1e293b;
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* ═══════════ HEADER ═══════════ */
    header {
      background: var(--navy);
      position: sticky; top: 0; z-index: 100;
      border-bottom: 1px solid var(--navy-border);
    }
    .header-inner {
      max-width: 1320px; margin: 0 auto; padding: 0 2rem;
      height: 68px;
      display: flex; align-items: center; justify-content: space-between; gap: 2rem;
    }
    .logo-mark { display: flex; align-items: center; gap: .6rem; text-decoration: none; }
    .logo-icon {
      width: 34px; height: 34px;
      background: linear-gradient(135deg, var(--blue-bright), var(--cyan));
      border-radius: 8px; display: flex; align-items: center; justify-content: center;
      font-family: var(--font); font-weight: 800; font-size: 16px; color: #fff;
    }
    .logo-text { font-family: var(--font); font-weight: 700; font-size: 1.1rem; color: #fff; letter-spacing: -.3px; }
    .logo-text span { color: var(--blue-bright); }
    nav { display: flex; align-items: center; gap: .15rem; }
    nav a {
      color: #94a3b8; text-decoration: none; font-size: .85rem; font-weight: 500;
      padding: .45rem .85rem; border-radius: 6px; transition: color .2s, background .2s;
    }
    nav a:hover { color: #fff; background: rgba(255,255,255,.07); }
    nav a.active { color: #fff; background: rgba(14,165,233,.12); }
    .header-cta { display: flex; align-items: center; gap: .75rem; flex-shrink: 0; }
    .btn {
      display: inline-flex; align-items: center; gap: .4rem;
      padding: .5rem 1.25rem; border-radius: 8px;
      font-family: var(--font); font-size: .85rem; font-weight: 600;
      text-decoration: none; transition: all .2s; cursor: pointer; border: none;
    }
    .btn-primary { background: var(--blue-bright); color: #fff; }
    .btn-primary:hover { background: var(--blue-glow); transform: translateY(-1px); }
    .btn-ghost {
      background: transparent; color: #94a3b8;
      border: 1px solid var(--navy-border);
    }
    .btn-ghost:hover { color: #fff; border-color: #1e3a5f; background: rgba(255,255,255,.04); }

    /* ═══════════ PAGE HERO ═══════════ */
    .page-hero {
      background: var(--navy);
      padding: 4.5rem 0 3.5rem;
      position: relative; overflow: hidden;
    }
    .page-hero::before {
      content: '';
      position: absolute; top: -150px; left: 50%; transform: translateX(-50%);
      width: 800px; height: 500px;
      background: radial-gradient(ellipse, rgba(14,165,233,.1) 0%, transparent 65%);
      pointer-events: none;
    }
    .hero-grid-bg {
      position: absolute; inset: 0;
      background-image:
        linear-gradient(rgba(14,165,233,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(14,165,233,.04) 1px, transparent 1px);
      background-size: 60px 60px;
      pointer-events: none;
    }
    .page-hero-inner {
      max-width: 1320px; margin: 0 auto; padding: 0 2rem;
      position: relative; z-index: 2;
    }
    .breadcrumb {
      display: flex; align-items: center; gap: .5rem;
      font-size: .75rem; font-weight: 500; color: #475569;
      margin-bottom: 1.5rem;
    }
    .breadcrumb a { color: var(--blue-bright); text-decoration: none; }
    .breadcrumb-sep { color: #1e3a5f; }

    .page-hero h1 {
      font-family: var(--font);
      font-size: clamp(2rem, 3.5vw, 3rem);
      font-weight: 800; color: #fff;
      letter-spacing: -1.5px; line-height: 1.1;
      margin-bottom: 1rem;
    }
    .page-hero h1 span {
      background: linear-gradient(90deg, var(--blue-bright), var(--cyan));
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .page-hero p { color: #64748b; font-size: .95rem; max-width: 600px; line-height: 1.7; font-weight: 400; }

    /* Summary pills row */
    .hero-summary {
      display: flex; flex-wrap: wrap; gap: .75rem;
      margin-top: 2rem;
    }
    .summary-pill {
      display: flex; align-items: center; gap: .5rem;
      background: var(--navy-card); border: 1px solid var(--navy-border);
      border-radius: 100px; padding: .4rem 1rem;
      font-size: .78rem; font-weight: 600; color: #94a3b8;
    }
    .summary-pill .dot {
      width: 8px; height: 8px; border-radius: 50%;
    }

    /* ═══════════ LAYOUT ═══════════ */
    .page-body {
      max-width: 1320px; margin: 0 auto; padding: 3rem 2rem 5rem;
      display: grid; grid-template-columns: 260px 1fr; gap: 2.5rem; align-items: start;
    }

    /* ═══════════ SIDEBAR FILTERS ═══════════ */
    .sidebar {
      position: sticky; top: 88px;
      background: #fff;
    }

    .filter-section {
      border: 1px solid #e2e8f0; border-radius: 14px;
      overflow: hidden; margin-bottom: 1.25rem;
    }

    .filter-header {
      padding: .875rem 1.25rem;
      background: #f8fafc;
      border-bottom: 1px solid #e2e8f0;
      font-size: .72rem; font-weight: 700;
      text-transform: uppercase; letter-spacing: 1.5px;
      color: #64748b;
      display: flex; align-items: center; justify-content: space-between;
    }

    .filter-body { padding: 1rem 1.25rem; }

    .filter-option {
      display: flex; align-items: center; justify-content: space-between;
      padding: .45rem 0; cursor: pointer;
      border-radius: 6px;
    }

    .filter-option-left { display: flex; align-items: center; gap: .65rem; }

    .fcheck {
      width: 16px; height: 16px;
      border: 2px solid #cbd5e1; border-radius: 4px;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0; transition: all .15s;
    }

    .filter-option.active .fcheck {
      background: var(--blue-bright); border-color: var(--blue-bright);
    }
    .filter-option.active .fcheck::after { content: '✓'; color: #fff; font-size: 10px; }

    .filter-option-label { font-size: .82rem; font-weight: 500; color: #334155; }
    .filter-option.active .filter-option-label { color: var(--blue-bright); }

    .filter-count {
      font-size: .7rem; font-weight: 600; color: #94a3b8;
      background: #f1f5f9; border-radius: 100px;
      padding: .1rem .5rem;
    }

    .stack-dot {
      width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0;
    }

    /* ═══════════ MAIN CONTENT ═══════════ */
    .main-area {}

    /* Toolbar */
    .toolbar {
      display: flex; align-items: center; justify-content: space-between;
      margin-bottom: 1.75rem; gap: 1rem; flex-wrap: wrap;
    }

    .toolbar-left { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }

    .result-count { font-size: .85rem; color: #64748b; font-weight: 500; }
    .result-count strong { color: #0f172a; font-weight: 700; }

    .active-filter-chip {
      display: inline-flex; align-items: center; gap: .4rem;
      background: rgba(14,165,233,.08); border: 1px solid rgba(14,165,233,.2);
      color: var(--blue-bright); font-size: .75rem; font-weight: 600;
      padding: .3rem .7rem; border-radius: 100px;
    }

    .toolbar-right { display: flex; align-items: center; gap: .75rem; }

    .sort-select {
      font-family: var(--font); font-size: .82rem; font-weight: 500;
      background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px;
      padding: .45rem .9rem; color: #334155; cursor: pointer;
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right .7rem center;
      padding-right: 2.2rem;
    }

    .view-toggle { display: flex; gap: .25rem; }
    .view-btn {
      width: 34px; height: 34px; border-radius: 7px; border: 1px solid #e2e8f0;
      background: #f8fafc; display: flex; align-items: center; justify-content: center;
      cursor: pointer; font-size: .9rem; transition: all .15s; color: #94a3b8;
    }
    .view-btn.active { background: var(--navy); border-color: var(--navy); color: #fff; }

    /* ═══════════ DOMAIN GROUP HEADER ═══════════ */
    .domain-group { margin-bottom: 3.5rem; }

    .domain-header {
      display: flex; align-items: center; gap: 1rem;
      margin-bottom: 1.5rem; padding-bottom: 1rem;
      border-bottom: 2px solid #f1f5f9;
    }

    .domain-icon {
      width: 44px; height: 44px; border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.3rem; flex-shrink: 0;
    }

    .domain-title {
      font-family: var(--font);
      font-size: 1.1rem; font-weight: 800;
      color: #0f172a; letter-spacing: -.3px;
    }

    .domain-count {
      font-size: .75rem; font-weight: 600; color: #94a3b8;
      background: #f1f5f9; border-radius: 100px;
      padding: .2rem .65rem;
    }

    /* ═══════════ PRODUCT CARDS ═══════════ */
    .products-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
    .products-grid.list-view { grid-template-columns: 1fr; }

    .product-card {
      background: #fff;
      border: 1px solid #e2e8f0;
      border-radius: 18px; overflow: hidden;
      transition: all .25s; display: flex; flex-direction: column;
    }
    .product-card:hover {
      border-color: #bfdbfe;
      box-shadow: 0 12px 40px rgba(14,165,233,.1);
      transform: translateY(-3px);
    }

    /* Card top band */
    .card-band {
      height: 6px;
    }

    .card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }

    .card-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 1rem; }

    .card-category {
      font-size: .68rem; font-weight: 700;
      text-transform: uppercase; letter-spacing: 1.5px;
      color: var(--blue-bright);
    }

    .card-badge {
      font-size: .68rem; font-weight: 700;
      padding: .25rem .6rem; border-radius: 6px;
    }

    .badge-new { background: rgba(16,185,129,.1); color: var(--green); border: 1px solid rgba(16,185,129,.2); }
    .badge-popular { background: rgba(245,158,11,.1); color: var(--gold); border: 1px solid rgba(245,158,11,.2); }
    .badge-updated { background: rgba(14,165,233,.1); color: var(--blue-bright); border: 1px solid rgba(14,165,233,.2); }

    .card-title {
      font-family: var(--font);
      font-size: 1.15rem; font-weight: 800;
      color: #0f172a; letter-spacing: -.3px;
      margin-bottom: .5rem; line-height: 1.25;
    }

    .card-product-name {
      font-size: .78rem; font-weight: 600; color: #94a3b8;
      margin-bottom: .75rem;
      font-family: 'Courier New', monospace;
    }

    .card-desc {
      font-size: .82rem; color: #64748b; line-height: 1.65;
      margin-bottom: 1.25rem; flex: 1;
    }

    /* Feature tags */
    .feature-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1.25rem; }
    .ftag {
      font-size: .68rem; font-weight: 500;
      background: #f8fafc; border: 1px solid #e2e8f0;
      color: #64748b; padding: .2rem .6rem; border-radius: 5px;
    }

    /* Stacks row */
    .card-stacks { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1.5rem; }
    .stack-chip {
      display: flex; align-items: center; gap: .3rem;
      font-size: .68rem; font-weight: 600;
      background: var(--navy); border: 1px solid var(--navy-border);
      color: #94a3b8; padding: .25rem .6rem; border-radius: 5px;
      font-family: 'Courier New', monospace;
    }
    .stack-chip-dot { width: 6px; height: 6px; border-radius: 2px; }

    /* Card footer */
    .card-footer {
      display: flex; align-items: center; justify-content: space-between;
      padding-top: 1rem; border-top: 1px solid #f1f5f9;
      margin-top: auto;
    }

    .card-cta {
      display: inline-flex; align-items: center; gap: .35rem;
      background: var(--navy); color: #fff;
      font-size: .8rem; font-weight: 600;
      padding: .55rem 1.1rem; border-radius: 8px; text-decoration: none;
      transition: all .2s;
    }
    .card-cta:hover { background: var(--blue-accent); transform: translateX(2px); }

    .card-meta { display: flex; align-items: center; gap: .75rem; }
    .meta-item { display: flex; align-items: center; gap: .3rem; font-size: .72rem; color: #94a3b8; }

    /* List view adjustments */
    .list-view .product-card {
      flex-direction: row; align-items: stretch;
    }
    .list-view .card-band { height: auto; width: 5px; }
    .list-view .card-body { padding: 1.25rem 1.5rem; }
    .list-view .card-desc { margin-bottom: .75rem; }

    /* ═══════════ CTA BANNER ═══════════ */
    .cta-banner {
      background: var(--navy-mid);
      border: 1px solid var(--navy-border);
      border-radius: 20px; padding: 3rem;
      text-align: center; position: relative; overflow: hidden;
      margin-top: 3rem;
    }
    .cta-banner::before {
      content: '';
      position: absolute; top: -80px; left: 50%; transform: translateX(-50%);
      width: 300px; height: 200px;
      background: radial-gradient(ellipse, rgba(14,165,233,.12), transparent 70%);
    }
    .cta-banner h2 {
      font-family: var(--font);
      font-size: 1.6rem; font-weight: 800; color: #fff;
      letter-spacing: -.5px; margin-bottom: .6rem;
    }
    .cta-banner p { color: #475569; margin-bottom: 1.75rem; font-size: .9rem; }
    .cta-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
    .btn-outline {
      background: transparent; color: #fff;
      border: 1.5px solid rgba(255,255,255,.25);
    }
    .btn-outline:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.5); }

    /* ═══════════ FOOTER ═══════════ */
    footer {
      background: var(--navy);
      border-top: 1px solid var(--navy-border);
      padding: 4rem 0 2rem;
    }
    .footer-grid {
      max-width: 1320px; margin: 0 auto; padding: 0 2rem;
      display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem;
      padding-bottom: 3rem;
      border-bottom: 1px solid var(--navy-border);
    }
    .footer-brand p {
      color: #334155; font-size: .8rem; line-height: 1.65;
      margin-top: .75rem; max-width: 250px;
    }
    .footer-col h4 {
      font-size: .72rem; font-weight: 700;
      text-transform: uppercase; letter-spacing: 1.5px;
      color: #64748b; margin-bottom: 1.1rem;
    }
    .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .6rem; }
    .footer-col ul a { color: #334155; text-decoration: none; font-size: .82rem; transition: color .2s; font-weight: 400; }
    .footer-col ul a:hover { color: #94a3b8; }
    .footer-bottom {
      max-width: 1320px; margin: 0 auto; padding: 1.5rem 2rem 0;
      display: flex; align-items: center; justify-content: space-between;
    }
    .footer-copy { color: #1e3a5f; font-size: .78rem; }
    .social-row { display: flex; gap: .65rem; margin-top: .9rem; }
    .social-link {
      width: 30px; height: 30px;
      background: var(--navy-card); border: 1px solid var(--navy-border);
      border-radius: 7px; display: flex; align-items: center; justify-content: center;
      color: #334155; text-decoration: none; font-size: .8rem; transition: all .2s;
    }
    .social-link:hover { color: #fff; border-color: #1e3a5f; background: rgba(14,165,233,.1); }

    /* ═══════════ RESPONSIVE ═══════════ */
    @media (max-width: 1024px) {
      .page-body { grid-template-columns: 220px 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .page-body { grid-template-columns: 1fr; }
      .sidebar { position: static; }
      nav { display: none; }
      .products-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: .5rem; text-align: center; }
    }