.source-hardware-page .hw-tab-bar {
      display: flex; gap: 0.25rem; flex-wrap: wrap; justify-content: center;
      margin: 1.75rem auto 0; max-width: 640px;
    }
    .source-hardware-page .hw-tab-bar a {
      font-size: 0.82rem; font-weight: 600; padding: 0.38rem 0.9rem;
      border-radius: 999px; border: 1px solid var(--color-border);
      color: var(--color-text-muted);
      transition: border-color var(--transition), color var(--transition), background var(--transition);
    }
    .source-hardware-page .hw-tab-bar a:hover, .source-hardware-page .hw-tab-bar a.is-active {
      border-color: var(--color-accent); color: var(--color-accent); background: var(--color-accent-dim);
    }
    .source-hardware-page .breadcrumb {
      display: flex; align-items: center; gap: 0.5rem; font-size: 0.83rem;
      color: var(--color-text-dim); margin-bottom: 1rem; flex-wrap: wrap;
    }
    .source-hardware-page .breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
    .source-hardware-page .breadcrumb a:hover { color: var(--color-accent); }
    .source-hardware-page .breadcrumb span { color: var(--color-text-dim); }
    .source-hardware-page .specs-block {
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      margin-bottom: 2rem;
    }
    .source-hardware-page .specs-block-header {
      padding: 1rem 1.5rem;
      border-bottom: 1px solid var(--color-border);
      font-family: var(--font-display);
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-muted);
      background: var(--color-bg-elevated);
    }
    .source-hardware-page .specs-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.92rem;
    }
    .source-hardware-page .specs-table tr { border-bottom: 1px solid var(--color-border); }
    .source-hardware-page .specs-table tr:last-child { border-bottom: none; }
    .source-hardware-page .specs-table td { padding: 0.75rem 1.25rem; }
    .source-hardware-page .specs-table td:first-child {
      color: var(--color-text-muted);
      font-weight: 500;
      width: 40%;
    }
    .source-hardware-page .specs-table td:last-child {
      color: var(--color-text);
      font-weight: 600;
    }
    /* UDP packet schema table — more columns */
    .source-hardware-page .packet-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.88rem;
      margin: 0;
    }
    .source-hardware-page .packet-table th {
      text-align: left;
      font-weight: 700;
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--color-text-muted);
      background: var(--color-bg-elevated);
      border-bottom: 2px solid var(--color-border);
      padding: 0.65rem 1rem;
    }
    .source-hardware-page .packet-table td {
      padding: 0.65rem 1rem;
      border-bottom: 1px solid var(--color-border);
      vertical-align: top;
    }
    .source-hardware-page .packet-table tr:last-child td { border-bottom: none; }
    .source-hardware-page .packet-table td:first-child {
      font-family: 'JetBrains Mono', 'Fira Code', monospace;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--color-text);
      white-space: nowrap;
    }
    .source-hardware-page .packet-table td:nth-child(2) {
      font-family: 'JetBrains Mono', 'Fira Code', monospace;
      font-size: 0.82rem;
      color: var(--color-accent);
      white-space: nowrap;
    }
    .source-hardware-page .packet-table td:nth-child(3) {
      text-align: right;
      font-weight: 700;
      color: var(--color-text);
      white-space: nowrap;
    }
    .source-hardware-page .packet-table td:nth-child(4) {
      color: var(--color-text-muted);
      line-height: 1.5;
    }
    .source-hardware-page .latency-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1rem;
      margin-bottom: 2rem;
    }
    .source-hardware-page .latency-card {
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 1.25rem 1.5rem;
      text-align: center;
    }
    .source-hardware-page .latency-card-value {
      font-family: var(--font-display);
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--color-accent);
      line-height: 1.1;
      margin-bottom: 0.3rem;
    }
    .source-hardware-page .latency-card-label {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--color-text);
      margin-bottom: 0.2rem;
    }
    .source-hardware-page .latency-card-note {
      font-size: 0.75rem;
      color: var(--color-text-muted);
    }
    .source-hardware-page pre.spec-code {
      background: #0f1117; color: #e2e8f0; border-radius: 8px;
      padding: 1.25rem 1.5rem; font-size: 0.82rem;
      font-family: 'JetBrains Mono', 'Fira Code', monospace;
      line-height: 1.65; overflow-x: auto; margin: 1rem 0 1.25rem;
      border: 1px solid #1e2231;
    }
    .source-hardware-page pre.spec-code .c { color: #6b7a99; }
    .source-hardware-page pre.spec-code .kw { color: #7dd3fc; }
    .source-hardware-page pre.spec-code .st { color: #86efac; }
    .source-hardware-page pre.spec-code .num { color: #fcd34d; }
    .source-hardware-page pre.spec-code .fn { color: #c4b5fd; }
    .source-hardware-page .section-heading {
      font-family: var(--font-display);
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-text);
      margin: 0 0 1.25rem;
      padding-bottom: 0.75rem;
      border-bottom: 1px solid var(--color-border);
    }
    .source-hardware-page code.ic {
      background: var(--color-bg-elevated);
      border: 1px solid var(--color-border);
      border-radius: 4px;
      padding: 0.1em 0.45em;
      font-size: 0.85em;
      font-family: 'JetBrains Mono', 'Fira Code', monospace;
      color: var(--color-text);
    }
    .source-hardware-page .spec-callout {
      border-left: 3px solid var(--color-accent);
      background: var(--color-accent-dim);
      border-radius: 0 6px 6px 0;
      padding: 0.9rem 1.25rem;
      margin: 1rem 0 1.5rem;
      font-size: 0.9rem;
      line-height: 1.6;
      color: var(--color-text);
    }
    .source-hardware-page .spec-callout strong { display: block; margin-bottom: 0.25rem; color: var(--color-accent); }