@media (max-width: 650px) {
  body.mobile-menu-open { overflow: hidden; }
  .header { position: relative; z-index: 100; }
  .header-row { min-height: 60px; padding-block: 7px; flex-wrap: nowrap; gap: 6px; }
  .header-row .brand { gap: 0; }
  .header-row .brand img { width: 38px; height: 36px; }
  .header-row .brand b { display: none; }
  .header-row .settings { margin-left: auto; gap: 3px; flex-shrink: 1; }
  .header-row .settings-group { gap: 1px; }
  .header-row .settings button,
  .header-row .settings a { min-width: 31px; min-height: 38px; padding: 5px 4px; font-size: 10px; }
  .mobile-menu { flex: 0 0 auto; margin-left: 1px; }
  .mobile-menu > summary { min-width: 55px; min-height: 44px; justify-content: center; gap: 6px; list-style: none; font-weight: 650; }
  .mobile-menu > summary::-webkit-details-marker,
  .mobile-menu-section > summary::-webkit-details-marker { display: none; }
  .mobile-menu-icon { color: var(--accent); font-size: 20px; line-height: 1; transition: transform .2s ease; }
  .mobile-menu[open] .mobile-menu-icon { transform: rotate(45deg); }
  .mobile-menu > nav {
    position: fixed;
    inset: 60px 0 0;
    z-index: 1000;
    padding: 18px var(--pad) 32px;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--surface);
    border: 0;
    border-top: 1px solid var(--line);
    box-shadow: none;
  }
  .mobile-menu > nav > a,
  .mobile-menu-section > summary {
    min-height: 62px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 22px;
    line-height: 1.25;
    font-weight: 550;
    cursor: pointer;
  }
  .mobile-menu-section > summary span { color: var(--accent); font-size: 24px; transition: transform .2s ease; }
  .mobile-menu-section[open] > summary span { transform: rotate(45deg); }
  .mobile-menu-section > div { padding: 4px 0 14px 18px; border-bottom: 1px solid var(--line); }
  .mobile-menu-section > div a { min-height: 50px; padding: 10px 0; border: 0; display: flex; align-items: center; font-size: 16px; color: var(--muted); }
  .mobile-menu > nav .mobile-menu-contact { margin-top: 22px; padding-inline: 18px; border: 1px solid var(--accent); border-radius: 4px; background: var(--accent); color: var(--on-accent); }
}

@media (max-width: 360px) {
  .header-row { gap: 3px; }
  .header-row .brand img { width: 34px; height: 32px; }
  .header-row .settings button,
  .header-row .settings a { min-width: 29px; padding-inline: 3px; }
  .mobile-menu > summary { min-width: 50px; font-size: 12px; }
}

/* Strong final override for the commercial layout. The original commercial
   stylesheet uses more specific selectors, so the mobile fix must match them. */
@media (max-width: 650px) {
  html { scroll-padding-top: 58px !important; }
  body.commercial.mobile-menu-open { overflow: hidden !important; }
  body.commercial .header { position: sticky !important; top: 0 !important; z-index: 999990 !important; }
  body.commercial .header-row {
    display: flex !important; width: 100% !important; min-height: 58px !important; height: 58px !important;
    padding: 6px 14px !important; flex-wrap: nowrap !important; align-items: center !important;
    justify-content: flex-start !important; gap: 6px !important;
  }
  body.commercial .header-row .brand {
    display: flex !important; flex: 0 0 38px !important; min-width: 38px !important;
    min-height: 40px !important; gap: 0 !important;
  }
  body.commercial .header-row .brand img { width: 38px !important; height: 36px !important; }
  body.commercial .header-row .brand b { display: none !important; }
  body.commercial .header-row .settings {
    display: flex !important; width: auto !important; margin: 0 0 0 auto !important;
    flex: 0 1 auto !important; flex-wrap: nowrap !important; align-items: center !important;
    justify-content: flex-end !important; gap: 4px !important;
  }
  body.commercial .header-row .settings-group {
    display: flex !important; flex-wrap: nowrap !important; gap: 1px !important;
    padding: 2px !important; border-radius: 7px !important;
  }
  body.commercial .header-row .settings button,
  body.commercial .header-row .settings a {
    min-width: 32px !important; width: auto !important; min-height: 36px !important;
    padding: 4px 5px !important; font-size: 10px !important; white-space: nowrap !important;
  }
  body.commercial .mobile-menu {
    display: block !important; position: static !important; width: auto !important; margin: 0 !important;
    flex: 0 0 auto !important; align-self: center !important;
  }
  body.commercial .mobile-menu > summary {
    width: auto !important; min-width: 62px !important; min-height: 42px !important;
    padding: 5px 8px !important; display: flex !important; align-items: center !important;
    justify-content: center !important; gap: 5px !important; border: 1px solid var(--line) !important;
    border-radius: 7px !important; list-style: none !important; font-size: 11px !important;
    font-weight: 650 !important; white-space: nowrap !important;
  }
  body.commercial .mobile-menu > summary::-webkit-details-marker,
  body.commercial .mobile-menu-section > summary::-webkit-details-marker { display: none; }
  body.commercial .mobile-menu-icon { color: var(--accent) !important; font-size: 18px !important; line-height: 1 !important; }
  body.commercial .mobile-menu[open] .mobile-menu-icon { transform: rotate(45deg); }
  body.commercial .mobile-menu[open] > nav {
    position: fixed !important; inset: 58px 0 0 0 !important; z-index: 999999 !important;
    width: 100vw !important; height: calc(100dvh - 58px) !important; max-width: none !important;
    max-height: none !important; margin: 0 !important; padding: 12px 20px 34px !important;
    display: block !important; overflow-x: hidden !important; overflow-y: auto !important;
    overscroll-behavior: contain !important; touch-action: pan-y !important; pointer-events: auto !important;
    background: var(--surface) !important; border: 0 !important; border-top: 1px solid var(--line) !important;
    box-shadow: none !important;
  }
  body.commercial .mobile-menu > nav > a,
  body.commercial .mobile-menu-section > summary {
    width: 100% !important; min-width: 0 !important; min-height: 58px !important;
    padding: 13px 2px !important; border: 0 !important; border-bottom: 1px solid var(--line) !important;
    border-radius: 0 !important; display: flex !important; align-items: center !important;
    justify-content: space-between !important; font-size: 20px !important; line-height: 1.25 !important;
    font-weight: 600 !important; cursor: pointer !important;
  }
  body.commercial .mobile-menu-section > summary span { color: var(--accent) !important; font-size: 23px !important; }
  body.commercial .mobile-menu-section[open] > summary span { transform: rotate(45deg); }
  body.commercial .mobile-menu-section > div { padding: 4px 0 13px 16px !important; border-bottom: 1px solid var(--line) !important; }
  body.commercial .mobile-menu-section > div a {
    width: 100% !important; min-width: 0 !important; min-height: 48px !important;
    padding: 10px 2px !important; border: 0 !important; display: flex !important;
    align-items: center !important; font-size: 16px !important; color: var(--muted) !important;
  }
  body.commercial .mobile-menu > nav .mobile-menu-contact {
    margin-top: 18px !important; padding-inline: 16px !important; border: 1px solid var(--accent) !important;
    border-radius: 7px !important; background: var(--accent) !important; color: var(--on-accent) !important;
  }
}

@media (max-width: 360px) {
  body.commercial .header-row { padding-inline: 10px !important; gap: 4px !important; }
  body.commercial .header-row .brand { flex-basis: 34px !important; min-width: 34px !important; }
  body.commercial .header-row .brand img { width: 34px !important; height: 32px !important; }
  body.commercial .header-row .settings { gap: 2px !important; }
  body.commercial .header-row .settings button,
  body.commercial .header-row .settings a { min-width: 29px !important; padding-inline: 3px !important; font-size: 9px !important; }
  body.commercial .mobile-menu > summary { min-width: 55px !important; padding-inline: 5px !important; }
}