.top-nav {
  /* stickiness on .top-nav is no longer necessary since 'header' in 'basics.css' is 'sticky' */
  /* position: sticky; */
  /* top: 0; */
  z-index: 9999999;
  display: flex;
  align-items: center;
  background: var(--top-nav--bg-color);
  min-height: 52px;
  border-radius: 0px;
  border: var(--top-nav--border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
  padding: 0 8px;
  flex-wrap: wrap;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  box-sizing: border-box;
}
.top-nav *,
.top-nav *::before,
.top-nav *::after {
  box-sizing: border-box;
}
.top-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.top-navlogo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-right: auto;
}
.top-navlogo > a {
  text-decoration: none;
}
.top-navlogo-text {
  color: var(--top-nav--fg-color);
  font-size: 18px;
  font-weight: 600;
  white-space: nowrap;
  line-height: 1;
}
.top-navhamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0;
}
.top-navhamburger span {
  display: block;
  background-color: var(--top-nav--fg-color);
  transition: all 0.3s;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  margin: 3px 0;
}

.top-nav > ul {
  display: flex;
  justify-content: center;
  flex: 1;
  flex-wrap: wrap;
}
.top-nav > ul > li {
  position: relative;
}
.top-nav > ul > li > .no-link,
.top-nav > ul > li > a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 16px;
  height: 52px;
  color: var(--top-nav--fg-color);
  font-size: 16px;
  font-weight: 500;
  text-transform: none;
  text-decoration: none;
  transition:
    background 0.2s,
    color 0.2s;
  white-space: nowrap;
}

.top-nav > ul > li > .no-link {
  cursor: default;
}

.top-nav > ul > li > a:hover,
.top-nav > ul > li:hover > a {
  background-color: var(--top-nav--li-a-hover-bg-color);
  color: var(--top-nav--li-a-hover-fg-color);
}
.top-navarrow {
  font-size: 1.3em;
  opacity: 0.85;
  vertical-align: middle;
}
/* Dropdown */
.top-nav > ul > li > ul {
  display: none;
  position: absolute;
  top: 100%;
  right: -50px;
  background-color: var(--top-nav--dropdown-bg-color);
  min-width: max-content;
  border-radius: 0 0 6px 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  z-index: 1000;
  overflow: hidden;
}
.top-nav > ul > li:hover > ul {
  display: block;
}
.top-nav > ul > li > ul > li > a {
  display: block;
  padding: 10px 18px;
  color: var(--top-nav--dropdown-fg-color);
  font-size: 16px;
  text-decoration: none;
  transition:
    background 0.15s,
    color 0.15s;
}
.top-nav > ul > li > ul > li > a:hover {
  background-color: var(--top-nav--dropdown-hover-bg-color);
  color: var(--top-nav--dropdown-hover-fg-color);
}
.top-nav > ul > li > ul > li:last-child {
  border-radius: 0 0 6px 6px;
  overflow: hidden;
}
.top-nav > ul > li > ul > li:last-child > a {
  border-radius: 0 0 6px 6px;
}
/* Responsive */
@media (max-width: 256px) {
  .top-navhamburger {
    display: flex;
    margin-left: 0;
  }
  .top-nav {
    display: flex;
    flex-wrap: wrap;
  }
  .top-navlogo {
    margin-right: auto;
    margin-left: 0;
    justify-self: unset;
    order: -1;
  }
  .top-nav > ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: linear-gradient(90deg, #1e40af, #2563eb);
    border-radius: 0 0 0px 0px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    padding: 8px 0;
    overflow: hidden;
  }
  .top-nav > ul.open {
    display: flex;
  }
  /* Remove nav bottom radius when dropdown is open so they flow together */
  .top-nav.mobile-open {
    border-radius: 0px 0px 0 0;
  }
  .top-nav > ul > li > a {
    height: auto;
    padding: 14px 20px;
  }
  /* Reset desktop last-child rounding — not needed on mobile */
  .top-nav > ul > li:last-child {
    border-radius: 0;
    overflow: visible;
  }
  .top-nav > ul > li:last-child > a {
    border-radius: 0;
  }
  .top-nav > ul > li > ul {
    display: none;
    position: static;
    box-shadow: none;
    border-radius: 0;
    overflow: visible;
    background: rgba(0, 0, 0, 0.15);
    min-width: 0;
  }
  .top-nav > ul > li > ul.sub-open {
    display: block;
  }
  .top-nav > ul > li.has-sub > a .top-navarrow {
    display: inline-block;
  }
  /* No rounding on submenu items in mobile */
  .top-nav > ul > li > ul > li:last-child {
    border-radius: 0;
    overflow: visible;
  }
  .top-nav > ul > li > ul > li:last-child > a {
    border-radius: 0;
  }
  .top-nav > ul > li > ul > li > a {
    padding: 10px 32px;
  }
  /* Hamburger animates to X when open */

  .top-nav.mobile-open .top-navhamburger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .top-nav.mobile-open .top-navhamburger span:nth-child(2) {
    opacity: 0;
  }
  .top-nav.mobile-open .top-navhamburger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}