.header_nav > ul > li { position: relative; }
.header_nav > ul > li > a {
  display: block;
  padding: 0.5rem 0.75rem;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: 5px;
  transition: background 0.2s;
}
.header_nav > ul > li > a:hover,
.header_nav > ul > li:hover > a { background: rgba(255,255,255,0.15); }
.header_nav .sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
  padding: 0.5rem 0;
  z-index: 100;
  list-style: none;
  margin: 0;
  max-height: 400px;
  overflow-y: auto;
}
.header_nav li:hover > .sub-menu { display: block; }
.header_nav .sub-menu a {
  display: block;
  padding: 0.5rem 1rem;
  color: #133744;
  font-size: 14px;
  white-space: nowrap;
}
.header_nav .sub-menu a:hover { background: #F5F5F6; color: #0BA25B; }

.menu_toggle_icon,
.menu_toggle_icon::before,
.menu_toggle_icon::after {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  position: relative;
  transition: 0.2s;
}
.menu_toggle_icon::before,
.menu_toggle_icon::after {
  content: '';
  position: absolute;
  left: 0;
}
.menu_toggle_icon::before { top: -6px; }
.menu_toggle_icon::after { top: 6px; }

.mobile_nav.is-open { transform: translateX(0); }
.mobile_menu > li > a {
  display: block;
  padding: 0.75rem 0;
  color: #fff;
  font-weight: 600;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.mobile_menu .sub-menu {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
}
.mobile_menu .sub-menu.is-active { display: block; }
.mobile_menu .submenu-toggle {
  float: right;
  background: none;
  border: none;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  padding: 0.5rem;
}
.mobile_menu .goback-btn {
  background: rgba(255,255,255,0.1);
  border: none;
  color: #fff;
  padding: 0.75rem 1rem;
  width: 100%;
  text-align: left;
  cursor: pointer;
  margin-bottom: 0.5rem;
  border-radius: 5px;
}

.search_holder.is-open { display: block !important; }
