.hero-mobile-video-layer { display: none; }

@media (max-width: 767px) {
  .home-page .hero-mobile-video-layer {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    background: #031019 url('./video/home-mobile-pcb-deep-zoom-v4-poster.jpg') center / cover no-repeat;
  }
  .hero-mobile-video {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    opacity: 0;
    transition: opacity .45s ease;
  }
  .mobile-video-ready .hero-mobile-video { opacity: 1; }
  .hero-mobile-video-layer::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
      linear-gradient(90deg, rgba(2,8,14,.4), rgba(2,8,14,.14) 64%, rgba(2,8,14,.34)),
      linear-gradient(180deg, rgba(2,8,14,.18), rgba(2,8,14,.05) 48%, rgba(2,8,14,.55));
  }
  .home-page .hero-lab-background { visibility: hidden; }
  .home-page .hero {
    display: flex;
    flex-direction: column;
    min-height: 100svh;
  }
  .home-page .hero-inner {
    position: static;
    min-height: 0;
    padding: calc(72px + clamp(24px, 5svh, 48px)) 0 0;
    align-content: start;
    flex: 0 0 auto;
  }
  .home-page .hero-copy { padding: 0; }
  .home-page .hero-actions { display: none; }
  .home-page .hero-actions .button-ghost {
    background: rgba(0, 0, 0, .65);
    border-color: rgba(255, 255, 255, .24);
    color: #f3f8fa;
  }
  .home-page .hero-actions .button-ghost:is(:hover, :focus-visible) {
    background: rgba(0, 0, 0, .8);
    border-color: rgba(125, 217, 246, .7);
  }
  .home-page .hero-proof {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    width: calc(100% - 32px);
    min-height: 0;
    margin: auto auto 82px;
    padding: 32px 0 0;
    border: 0;
    background: transparent;
    flex: 0 0 auto;
  }
  .home-page .hero-proof .certification-badge {
    grid-row: 2;
    justify-content: center;
    min-height: 46px;
    height: 46px;
    padding: 6px 4px;
    gap: 0;
    background: rgba(255, 255, 255, .8);
    border-color: rgba(255, 255, 255, .3);
    border-radius: 3px;
    box-shadow: none;
  }
  .home-page .hero-proof .certification-badge img {
    width: 100%;
    height: 26px;
    max-width: 76px;
    max-height: 26px;
    object-fit: contain;
    mix-blend-mode: multiply;
  }
  .home-page .hero-proof .certification-badge small { display: none; }
  .home-page .hero-proof .certification-badge-materials {
    grid-column: 1 / -1;
    grid-row: 1;
    height: 54px;
    min-height: 54px;
    padding: 10px 14px;
    gap: 12px;
    background: linear-gradient(115deg, rgba(255,255,255,.9), rgba(221,242,255,.8));
    border-color: rgba(219,243,255,.7);
    box-shadow: inset 3px 0 0 #24a8df;
  }
  .home-page .hero-proof .certification-badge-materials::before {
    content: '';
    width: 28px;
    height: 28px;
    flex: 0 0 28px;
    background: center / contain no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32' fill='none' stroke='%231766d5' stroke-width='1.7' stroke-linejoin='round' stroke-linecap='round'%3E%3Cpath d='m16 4 13 7-13 7L3 11Z'/%3E%3Cpath d='m3 16 13 7 13-7M3 21l13 7 13-7'/%3E%3C/svg%3E");
  }
  .home-page .hero-proof .certification-wordmark {
    min-width: 0;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    text-align: center;
  }
  .home-page .hero-proof .certification-wordmark b {
    color: #124979;
    font-size: clamp(14px, 4vw, 17px);
    letter-spacing: -.035em;
    white-space: nowrap;
  }
  .home-page .hero-proof .certification-wordmark i {
    margin: 0;
    padding: 5px 7px;
    border: 1px solid rgba(23,102,213,.18);
    border-radius: 3px;
    background: rgba(23,102,213,.09);
    color: #145a91;
    font-size: 10px;
    letter-spacing: .02em;
    white-space: nowrap;
  }
  .home-page .hero-motion-toggle { right: 16px; bottom: 22px; }
}

@media (max-width: 767px) and (max-height: 700px) {
  .home-page .hero-inner { padding-top: 96px; }
  .home-page .hero-proof { padding-top: 24px; margin-bottom: 74px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-mobile-video { transition: none; }
}