/* Native expandable treatment navigation shared by all fifteen pages. */
.nav-regenerative { border-top: 1px solid var(--line); margin-top: 5px; padding-top: 4px; }
.nav-regenerative > summary { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px; border-radius: 8px; list-style: none; cursor: pointer; line-height: 1.5; }
.nav-regenerative > summary::-webkit-details-marker { display: none; }
.nav-regenerative > summary:hover,.nav-regenerative[open] > summary { background: var(--cream-deep); }
.nav-regenerative[open] > summary .chevron { transform: rotate(225deg); margin-top: 3px; }
.regenerative-subnav { margin: 6px 0 0 12px; padding-left: 10px; border-left: 1px solid var(--line); }
.regenerative-subnav a { font-size: 13px; line-height: 1.5; padding-block: 10px; }
.site-nav > .nav-services:not(.nav-about) > .subnav { max-height: calc(100dvh - 220px); overflow-y: auto; overscroll-behavior: contain; }
@media (max-width:1180px) {
  .site-nav > .nav-services:not(.nav-about) > .subnav { max-height: none; overflow: visible; }
  .nav-regenerative > summary { justify-content: center; }
  .regenerative-subnav { margin-inline: auto; width: min(100%,340px); padding-inline: 6px; border: 0; }
}