* { box-sizing: border-box; }
    body { margin: 0; background: #111; color: #fff; font-family: Arial, Helvetica, sans-serif; }
    a { color: inherit; }
    .site-header {
      position: sticky; top: 0; z-index: 20; display: flex; align-items: center;
      justify-content: space-between; gap: 22px; min-height: 78px; padding: 12px 5%;
      background: #111; color: #fff; border-bottom: 1px solid #262626;
    }
    .logo { text-decoration: none; color: inherit; font-size: 24px; font-weight: 750; letter-spacing: -1.1px; line-height: 1; white-space: nowrap; }
    .site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
    .nav-link {
      display: inline-flex; align-items: center; min-height: 36px; padding: 0 9px;
      color: #e5e5e5; border-radius: 2px; text-decoration: none;
      font-size: 11px; font-weight: 600; letter-spacing: .07em; white-space: nowrap;
    }
    .nav-link:hover { color: #fff; background: rgba(255,255,255,.055); }
    .nav-link[aria-current="page"] { color: #fff; border-bottom: 1px solid currentColor; border-radius: 0; }
    .theme-button {
      min-height: 36px; margin-left: 8px; padding: 0 13px;
      background: transparent; color: inherit; border: 1px solid #4c4c4c;
      border-radius: 3px; font: 600 11px Arial, sans-serif;
      letter-spacing: .065em; cursor: pointer;
    }
    .theme-button:hover { background: #232323; }
    :is(a,button):focus-visible { outline: 2px solid currentColor; outline-offset: 4px; }
    main { min-height: calc(100vh - 155px); padding: 46px 5% 100px; }
    .content { max-width: 1260px; margin: auto; }
    .back { display: inline-block; margin-bottom: 60px; color: #a6a6a6; text-decoration: none; font-size: 11px; letter-spacing: .1em; }
    .back:hover { color: #fff; }
    .eyebrow { color: #969696; font-size: 11px; letter-spacing: .17em; font-weight: 700; margin: 0 0 16px; }
    h1 { font-size: clamp(44px, 6vw, 80px); letter-spacing: -.055em; line-height: 1; margin: 0 0 22px; }
    .reviews-intro { color: #aaa; margin: 0 0 42px; font-size: 14px; line-height: 1.7; }
    .divider { height: 1px; background: #343434; margin-bottom: 28px; }
    .vouch-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
    .vouch-card {
      display: block; padding: 0; border: 1px solid #353535; border-radius: 3px;
      background: #191919; overflow: hidden; cursor: zoom-in;
      transition: transform .2s, border-color .2s;
    }
    .vouch-card:hover { transform: translateY(-2px); border-color: #777; }
    .vouch-card img { display: block; width: 100%; aspect-ratio: 4/5; object-fit: contain; background: #181818; }
    .vouch-empty { grid-column: 1/-1; padding: 75px 18px; border: 1px solid #353535; text-align: center; color: #aaa; font-size: 13px; }
    .vouch-lightbox[hidden] { display: none; }
    .vouch-lightbox { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 55px 20px 25px; background: rgba(0,0,0,.93); }
    .vouch-lightbox img { max-width: min(850px,94vw); max-height: 83vh; object-fit: contain; background: #151515; }
    .vouch-close { position: absolute; top: 15px; right: 24px; border: 0; background: none; color: white; font-size: 35px; cursor: pointer; }
    footer { border-top: 1px solid #303030; padding: 28px 5%; color: #a7a7a7; font-size: 12px; }
    .light-mode { background: #f7f7f7; color: #111; }
    .light-mode .site-header { background: #fff; color: #111; border-color: #dedede; }
    .light-mode .nav-link { color: #222; }
    .light-mode .nav-link:hover { background: #f0f0f0; }
    .light-mode .nav-link[aria-current="page"] { color: #111; }
    .light-mode .theme-button { border-color: #bcbcbc; }
    .light-mode .theme-button:hover { background: #efefef; }
    .light-mode .back, .light-mode .eyebrow, .light-mode .reviews-intro { color: #666; }
    .light-mode .back:hover { color: #111; }
    .light-mode .divider { background: #ddd; }
    .light-mode .vouch-card { border-color: #dadada; background: #eee; }
    .light-mode .vouch-card img { background: #ededed; }
    .light-mode .vouch-empty { border-color: #dadada; color: #666; }
    .light-mode footer { border-color: #ddd; color: #666; }
    @media (max-width: 920px) { .vouch-grid { grid-template-columns: repeat(3, minmax(0,1fr)); } }
    @media (max-width: 700px) {
      .site-header { flex-direction: column; align-items: flex-start; gap: 10px; min-height: 0; padding: 15px 5% 12px; }
      .logo { font-size: 22px; }
      .site-nav { justify-content: flex-start; width: 100%; gap: 3px; }
      .nav-link { min-height: 32px; padding: 0 7px; font-size: 10px; }
      .theme-button { margin-left: auto; min-height: 32px; padding: 0 10px; font-size: 10px; }
      main { padding-top: 28px; }
      .back { margin-bottom: 42px; }
    }
    @media (max-width: 600px) { .vouch-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 9px; } }
    @media (prefers-reduced-motion: reduce) { .vouch-card { transition: none; } }