/* styles.css */
nav {
  position: relative;
}

.mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: white;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  z-index: 10;
  border-top: 1px solid #e5e7eb;
}

.mobile-menu ul {
  list-style: none;
}

.mobile-menu li {
  position: relative;
}

.mobile-menu a {
  display: block;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.mobile-menu .group.open #submenu-mobile {
  display: block !important;
}