.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #fff;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-around;
  z-index: 1000;
}

  .bottom-nav a {
    text-align: center;
    flex-grow: 1;
    padding: 10px;
    color: #333;
    font-size: 18px;
    position: relative;
  }

    .bottom-nav a:hover {
      color: #007bff;
    }

    .bottom-nav a i {
      display: block;
      font-size: 24px;
    }

/* Submenu */
.submenu {
  display: none;
  position: absolute;
  bottom: 73px;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 10px 0;
  width: 100%;
  text-align: center;
}

  .submenu a {
    font-family: Arial;
    display: block;
    padding: 8px 15px;
    color: #333;
    font-size: 16px;
    text-decoration: none;
    white-space: nowrap;
  }

    .submenu a:hover {
      background: #007bff;
      color: #fff;
    }

.menu-item {
  position: relative;
}

  .menu-item.active .submenu {
    display: block;
  }

/* Hide on larger screens */
@media (min-width: 768px) {
  .bottom-nav {
    display: none;
  }
}