/* Menu con (danh sách dịch vụ xổ xuống) */
.nav-list > li { position: relative; }

.nav-list .menu-item-has-children > a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-list .menu-item-has-children > a::before {
  content: "";
  order: 2;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 0.25s var(--ease);
}

.nav-list .sub-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list .sub-menu a::after { display: none; }

@media (min-width: 901px) {
  .nav-list .sub-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    min-width: 270px;
    padding-top: 14px;
    transform: translate(-50%, 8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
    z-index: 10;
  }

  .nav-list .sub-menu::before {
    content: "";
    position: absolute;
    inset: 14px 0 0;
    background: rgba(20, 20, 25, 0.96);
    backdrop-filter: blur(14px);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    z-index: -1;
  }

  .nav-list .sub-menu li:first-child { padding-top: 8px; }
  .nav-list .sub-menu li:last-child { padding-bottom: 8px; }

  .nav-list .sub-menu a {
    display: block;
    padding: 10px 18px;
    white-space: nowrap;
    color: var(--muted);
  }

  .nav-list .sub-menu a:hover,
  .nav-list .sub-menu a:focus-visible {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
  }

  .nav-list .menu-item-has-children:hover > .sub-menu,
  .nav-list .menu-item-has-children:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
  }

  .nav-list .menu-item-has-children:hover > a::before,
  .nav-list .menu-item-has-children:focus-within > a::before {
    transform: translateY(1px) rotate(225deg);
  }
}

@media (max-width: 900px) {
  .nav-list .menu-item-has-children > a::before { display: none; }

  .nav-list .sub-menu {
    display: grid;
    gap: 10px;
    margin-top: 12px;
    font-family: var(--font-body);
    font-size: 0.98rem;
    font-weight: 500;
  }

  .nav-list .sub-menu a { color: var(--muted); }
}