/* Ẩn nút và menu ở chế độ desktop */
.floating-btn,
.floating-menu {
  display: none;
}


/* responsive-mobile.css */
@media only screen and (max-width: 768px) {

    /* Ẩn header và menu chính */
    header.header-area {
        display: none !important;
        visibility: hidden !important;
        height: 0 !important;
        overflow: hidden !important;
    }

    .header-inner,
    .main-nav,
    .main-nav ul,
    .main-nav ul li,
    .main-nav ul li a {
        display: none !important;
        visibility: hidden !important;
        height: 0 !important;
        overflow: hidden !important;
    }

    body, html {
        margin: 0 !important;
        padding: 0 !important;
    }

    #top {
        margin-top: 0 !important;
        padding-top: 0 !important;
    }

    /* Hiển thị nút nổi và menu */
    .floating-btn {
  display: block;
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #ffffff, #ffffff);
  color: white;
  border: none;
  border-radius: 50%;
  border-color: #333;
  width: 64px;
  height: 64px;
  font-size: 30px;
  cursor: pointer;
  z-index: 999;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.3);
  transition: background 0.3s, transform 0.2s;
}

.floating-btn:hover {
  background: linear-gradient(135deg, #ffffff, #ffffff);
  transform: translateX(-50%) scale(1.05);
}

 .floating-menu {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #ffffff;
  border-radius: 16px;
  padding: 24px 20px;
  width: 90%;
  max-width: 360px;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25);
  z-index: 1000;
  animation: slideDown 0.25s ease-out;
}

/* Menu animation */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translate(-50%, -60%);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

  .floating-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
.floating-menu li {
  font-size: 17px;
  font-weight: 500;
  color: #333;
  padding: 14px 12px;
  border-bottom: 1px solid #eee;
  position: relative;
}
  .floating-menu li:last-child {
    border-bottom: none;
  }

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

.floating-menu a:hover {
  color: #e74c3c;
}

  /* Submenu style */
.floating-menu .has-submenu {
  cursor: pointer;
  padding-right: 24px;
}

.floating-menu .has-submenu::after {
  content: '▼';
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  color: #888;
  transition: transform 0.3s ease;
}

.floating-menu .has-submenu.open::after {
  transform: translateY(-50%) rotate(180deg);
}

.floating-menu .submenu {
  display: none;
  padding-left: 16px;
  margin-top: 8px;
  border-left: 2px solid #f0f0f0;
  animation: fadeIn 0.3s ease;
}

.floating-menu .submenu li {
  padding: 10px 0;
  font-size: 15px;
  font-weight: 400;
  color: #555;
  border: none;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Khi có class 'open' sẽ hiển thị submenu */
.floating-menu .has-submenu.open > .submenu {
  display: block;
}
}