@media (max-width: 767px) {
  .gbm-mobile-drawer {
    box-sizing: border-box; position: fixed; inset: 0 auto 0 0;
    width: 88vw; max-width: 360px; height: 100dvh; max-height: 100dvh;
    margin: 0; padding: max(16px, env(safe-area-inset-top)) 24px calc(24px + env(safe-area-inset-bottom, 0px));
    border: 0; border-radius: 0; background: #f7f4ef; color: #2d252c;
    overflow-y: auto; overscroll-behavior: contain;
    transform: translateX(-100%); transition: transform 220ms ease-out;
  }
  .gbm-mobile-drawer[open] { display: flex; flex-direction: column; }
  .gbm-mobile-drawer.is-visible { transform: translateX(0); }
  .gbm-mobile-drawer::backdrop { background: rgb(30 20 29 / 0); transition: background 220ms ease-out; }
  .gbm-mobile-drawer.is-visible::backdrop { background: rgb(30 20 29 / .52); }
  .gbm-drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 22px; flex-shrink: 0; }
  .gbm-drawer-close { display: inline-flex; align-items: center; gap: 7px; min-width: 44px; min-height: 44px; padding: 0; border: 0; background: none; color: #665a64; font: 13px var(--gbm-sans); cursor: pointer; }
  .gbm-drawer-close span { font-size: 28px; font-weight: 300; }
  .gbm-drawer-brand { font: 13px var(--gbm-serif); letter-spacing: .16em; white-space: nowrap; }
  .gbm-mobile-drawer ul { list-style: none; padding: 0; margin: 0; }
  .gbm-mobile-drawer a, .gbm-mobile-drawer summary { display: flex; align-items: center; min-height: 52px; color: inherit; text-decoration: none; font: 20px/1.3 var(--gbm-serif); cursor: pointer; }
  .gbm-mobile-drawer summary { list-style: none; justify-content: space-between; }
  .gbm-mobile-drawer summary::-webkit-details-marker { display: none; }
  .gbm-mobile-drawer summary::after { content: '›'; font: 24px var(--gbm-serif); color: #9c794e; transition: transform 180ms ease-out; }
  .gbm-mobile-drawer details[open] > summary::after { transform: rotate(90deg); }
  .gbm-mobile-drawer details ul { padding: 4px 0 12px 14px; }
  .gbm-mobile-drawer details a { min-height: 44px; font-size: 16px; color: #665a64; }
  .gbm-mobile-drawer .gbm-drawer-overview a { font-size: 13px; text-decoration: underline; color: #786c76; }
  .gbm-mobile-drawer .gbm-drawer-actions { margin: 22px 0 20px; }
  .gbm-mobile-drawer .gbm-drawer-design > a { justify-content: space-between; min-height: 52px; padding: 0 16px; border-radius: 8px; background: #493449; color: white; font-size: 18px; }
  .gbm-drawer-design > a::after { content: '→'; }
  .gbm-drawer-actions > li:not(.gbm-drawer-design) > a { justify-content: center; font-size: 17px; }
  .gbm-drawer-actions a[href*='/find-my-stones']::after { content: '\2192'; margin-left: 8px; font-size: 16px; font-weight: 400; }
  .gbm-mobile-drawer .gbm-drawer-secondary { padding-top: 14px; border-top: 1px solid #ded5cd; }
  .gbm-drawer-secondary > li > a { min-height: 44px; font-size: 17px; color: #665a64; }
  .gbm-drawer-signature { margin: auto 0 0; padding-top: 30px; font: italic 15px/1.5 var(--gbm-serif); color: #9c794e; }
  .gbm-drawer-signature span { margin-left: 6px; }
  .gbm-mobile-drawer :is(a, button, summary):focus-visible { outline: 2px solid #9c794e; outline-offset: 3px; }
}
@media (prefers-reduced-motion: reduce) {
  .gbm-mobile-drawer, .gbm-mobile-drawer::backdrop, .gbm-mobile-drawer summary::after { transition: none; }
}