.hub-head {
    position: relative; overflow: hidden;
    background:
      radial-gradient(ellipse 600px 300px at 90% 0%, rgba(14,165,233,.24) 0, transparent 60%),
      linear-gradient(135deg, #075985 0%, #0f4fa8 56%, #1d4ed8 100%);
    color: #fff; border-radius: 22px; padding: 36px 40px; margin-bottom: 22px;
    box-shadow: 0 24px 60px -20px rgba(11,30,52,.40);
  }
  .hub-head::before {
    content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .3;
    background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 70% 80% at 80% 50%, #000, transparent);
    -webkit-mask-image: radial-gradient(ellipse 70% 80% at 80% 50%, #000, transparent);
  }
  .hub-head > * { position: relative; z-index: 1; }
  .hub-pill {
    display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px;
    background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.18);
    padding: 7px 15px; border-radius: 999px; font-size: 12.5px; font-weight: 700; color: #dff7ff;
  }
  .hub-head h1 { margin: 0 0 12px; font-size: 34px; line-height: 1.15; font-weight: 800; letter-spacing: -.02em; }
  .hub-head p { margin: 0; max-width: 820px; color: rgba(255,255,255,.82); font-size: 15.5px; line-height: 1.65; }
  .hub-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
  .hub-stat {
    background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.16);
    padding: 9px 15px; border-radius: 12px; font-size: 13px; color: rgba(255,255,255,.75);
  }
  .hub-stat b { display: block; color: #fff; font-size: 19px; font-weight: 800; letter-spacing: -.01em; }

  .hub-find {
    display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
    background: #fff; border: 1px solid var(--line); border-radius: 16px;
    padding: 16px 18px; margin-bottom: 22px; box-shadow: 0 4px 14px rgba(11,30,52,.04);
  }
  .hub-find label { font-weight: 700; font-size: 14px; color: var(--text); }
  .hub-find input {
    flex: 1 1 260px; min-width: 0; padding: 12px 14px; border-radius: 10px;
    border: 1.5px solid var(--line); font: inherit; font-size: 15px;
  }
  .hub-find input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,165,233,.15); }
  .hub-find button {
    padding: 12px 22px; border: 0; border-radius: 10px; cursor: pointer; font: inherit; font-weight: 700;
    color: #fff; background: linear-gradient(135deg, var(--red) 0%, var(--red-deep) 100%);
  }

  .hub-card {
    background: #fff; border: 1px solid var(--line); border-radius: 18px;
    padding: 26px 30px; margin-bottom: 22px; box-shadow: 0 4px 14px rgba(11,30,52,.04);
  }
  .hub-card h2 { margin: 0 0 16px; font-size: 20px; font-weight: 800; letter-spacing: -.01em; color: var(--text); }
  .hub-card h2 small { color: var(--muted); font-weight: 600; font-size: 14px; margin-left: 6px; }
  .hub-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; }
  .hub-grid a {
    display: flex; justify-content: space-between; align-items: center; gap: 10px;
    padding: 11px 14px; border-radius: 11px; border: 1px solid var(--line);
    color: var(--text); text-decoration: none; font-weight: 600; font-size: 14px;
    transition: border-color .15s, background .15s, transform .15s;
  }
  .hub-grid a:hover { border-color: #93c5fd; background: #f8fbff; transform: translateY(-1px); }
  .hub-grid a span { color: var(--muted); font-weight: 500; font-size: 12.5px; white-space: nowrap; }
  .hub-chips { display: flex; flex-wrap: wrap; gap: 8px; }
  .hub-chips a, .hub-chips span.chip {
    display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border-radius: 999px;
    background: #f0f9ff; border: 1px solid #bfdbfe; color: var(--text);
    font-size: 13px; font-weight: 600; text-decoration: none;
  }
  .hub-chips a:hover { background: #e0f2fe; border-color: var(--primary); }
  .hub-chips small { color: var(--muted); font-weight: 500; font-size: 11.5px; }

  .files-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
  .files-table th {
    text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em;
    color: var(--muted); font-weight: 700; padding: 10px 10px; border-bottom: 2px solid var(--line);
  }
  .files-table td { padding: 11px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
  .files-table tr:hover td { background: #f8fbff; }
  .files-table .code { font-family: 'JetBrains Mono', Consolas, monospace; font-weight: 600; word-break: break-all; }
  .files-table .car a { color: var(--text); font-weight: 700; text-decoration: none; }
  .files-table .car a:hover { color: var(--red); }
  .files-table .car small { display: block; color: var(--muted); font-weight: 500; }
  .files-table .go a {
    display: inline-block; white-space: nowrap; padding: 7px 12px; border-radius: 9px;
    background: #f0f9ff; border: 1px solid #bfdbfe; color: var(--red); font-weight: 700; text-decoration: none;
  }
  .files-table .go a:hover { background: #e0f2fe; }
  .files-table .muted { color: #cbd5e1; }
  /* Phones: the header used to fill the whole first screen and the list of ECUs / files
     started below the fold. Compact header, one-line search, the list right under it. */
  @media (max-width: 600px) {
    .hub-head { padding: 18px 18px 20px; border-radius: 18px; margin-bottom: 12px; }
    .hub-pill { margin-bottom: 10px; padding: 5px 11px; font-size: 11.5px; }
    .hub-head h1 { font-size: 23px; margin-bottom: 8px; }
    .hub-head p { font-size: 13.5px; line-height: 1.5; display: -webkit-box; -webkit-box-orient: vertical;
      -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden; }
    .hub-stats { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 8px; margin-top: 14px; }
    .hub-stat { padding: 8px 10px; font-size: 11.5px; line-height: 1.3; min-width: 0; }
    .hub-stat b { font-size: 16px; white-space: nowrap; }
    .hub-find { flex-wrap: nowrap; gap: 8px; padding: 10px; margin-bottom: 12px; border-radius: 14px; }
    .hub-find label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
    .hub-find input { flex: 1 1 auto; padding: 11px 12px; font-size: 16px; }
    .hub-find button { flex: none; padding: 11px 16px; }
    .hub-card { padding: 18px 14px; border-radius: 16px; margin-bottom: 12px; }
    .hub-card h2 { font-size: 18px; margin-bottom: 12px; }
    .hub-grid { grid-template-columns: 1fr 1fr; gap: 7px; }
    .hub-grid a { padding: 10px 11px; font-size: 13.5px; min-width: 0; }
  }
  @media (max-width: 760px) {
    .files-table thead { display: none; }
    .files-table, .files-table tbody, .files-table tr, .files-table td { display: block; width: 100%; box-sizing: border-box; }
    .files-table tr { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px; padding: 6px 4px; }
    .files-table td { border: 0; padding: 4px 10px; }
    .files-table td.na { display: none; }
    .files-table td[data-k]::before { content: attr(data-k) ": "; color: var(--muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; }
  }

  .pager { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin: 18px 0 4px; }
  .pager a, .pager span {
    min-width: 38px; text-align: center; padding: 8px 12px; border-radius: 9px;
    border: 1px solid var(--line); color: var(--text); text-decoration: none; font-weight: 600; font-size: 14px;
  }
  .pager a:hover { border-color: var(--primary); }
  .pager .cur { background: var(--red); border-color: var(--red); color: #fff; }

  .num-block + .num-block { margin-top: 18px; }
  .num-block h3 { margin: 0 0 10px; font-size: 13px; text-transform: uppercase; letter-spacing: .07em; color: var(--red); }
  .num-chips { display: flex; flex-wrap: wrap; gap: 6px; }
  .num-chips a {
    font-family: 'JetBrains Mono', Consolas, monospace; font-size: 12.5px; font-weight: 600;
    padding: 5px 9px; border-radius: 7px; border: 1px solid var(--line); color: var(--text); text-decoration: none;
  }
  .num-chips a:hover { border-color: var(--primary); color: var(--red); }
  .num-more { margin-top: 8px; color: var(--muted); font-size: 13px; }

  .tune-card {
    display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center;
    background: radial-gradient(ellipse 600px 280px at 90% 50%, rgba(14,165,233,.14) 0, transparent 70%),
                linear-gradient(135deg, #f0f9ff 0%, #fff 100%);
    border: 1px solid #bfdbfe; border-radius: 22px; padding: 28px 32px; margin-bottom: 22px;
  }
  .tune-cap { color: var(--red); font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; }
  .tune-card h2 { margin: 6px 0 14px; font-size: 23px; font-weight: 800; color: var(--text); }
  .tune-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
  .tune-list li { background: #fff; border: 1px solid #bfdbfe; padding: 6px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; }
  .tune-action { display: flex; flex-direction: column; gap: 12px; min-width: 230px; }
  .btn-main {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 15px 24px;
    border-radius: 12px; color: #fff; font-weight: 700; text-decoration: none;
    background: linear-gradient(135deg, var(--red) 0%, var(--red-deep) 100%);
    box-shadow: 0 12px 28px rgba(14,165,233,.30);
  }
  .btn-main:hover { color: #fff; transform: translateY(-1px); }
  .btn-wa {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 22px;
    border-radius: 12px; font-weight: 700; text-decoration: none;
    background: #ecfdf3; border: 1.5px solid #86efac; color: #15803d;
  }
  .btn-wa:hover { background: #dcfce7; color: #166534; }
  .btn-wa svg { width: 18px; height: 18px; }

  .faq h3 { margin: 18px 0 6px; font-size: 16px; color: var(--text); }
  .faq h3:first-of-type { margin-top: 0; }
  .faq p { margin: 0; color: var(--muted); line-height: 1.7; font-size: 14.5px; }

  @media (max-width: 720px) {
    .hub-head { padding: 28px 22px; }
    .hub-head h1 { font-size: 25px; }
    .hub-card { padding: 22px 18px; }
    .tune-card { grid-template-columns: 1fr; padding: 24px 20px; }
    .tune-action { min-width: 0; }
  }