/* main-header-menu.css - Responsive multi-level nav menu */

.main-nav {
  background: #2c3e50;
  font-family: Arial, sans-serif;
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav > ul.menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.main-nav ul.menu li {
  position: relative;
}

.main-nav > ul.menu > li {
  margin: 0;
}

.main-nav a,
.main-nav button.submenu-toggle {
  color: #ecf0f1;
  padding: 14px 18px;
  display: block;
  text-decoration: none;
  border: none;
  background: none;
  font-size: 1rem;
  cursor: pointer;
}

.main-nav a:hover,
.main-nav button.submenu-toggle:hover,
.main-nav a:focus,
.main-nav button.submenu-toggle:focus {
  background: #34495e;
  outline: none;
}

.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #34495e;
  min-width: 160px;
  display: none;
  flex-direction: column;
  z-index: 9999;
}

.submenu li a {
  padding: 12px 16px;
  white-space: nowrap;
}

.submenu li a:hover,
.submenu li a:focus {
  background: #4a6378;
}

.menu > li:hover > .submenu,
.menu > li:focus-within > .submenu,
.submenu.submenu-open {
  display: flex;
}

/* Mobile styles */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #ecf0f1;
  font-size: 1.5rem;
  padding: 14px 18px;
  cursor: pointer;
  user-select: none;
}

@media(max-width: 768px) {
  .main-nav > ul.menu {
    flex-direction: column;
    display: none;
  }
  .main-nav > ul.menu.menu-open {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  /* Submenus for mobile */
  .submenu {
    position: static;
    background: #3a4a5a;
    display: none;
    flex-direction: column;
    padding-left: 15px;
  }
  .submenu.submenu-open {
    display: flex;
  }

  /* Remove hover-based dropdown, replace with click events */
  .menu > li:hover > .submenu {
    display: none;
  }
}