:root {
  --aidan-nav-bg: rgba(5, 21, 40, 0.9);
  --aidan-nav-border: rgba(136, 186, 240, 0.25);
  --aidan-nav-hover: rgba(136, 186, 240, 0.12);
}

/* Toggle button for smaller screens */
.aidan-nav-toggle {
  display: none;
  border: none;
  background: transparent;
  padding: 0.35rem;
  margin-left: 0.5rem;
  cursor: pointer;
  border-radius: 0.75rem;
  transition: background 0.18s ease;
}

.aidan-nav-toggle:hover,
.aidan-nav-toggle:focus-visible {
  background: rgba(136, 186, 240, 0.18);
  outline: none;
}

.aidan-nav-toggle-bar {
  display: block;
  width: 1.4rem;
  height: 0.14rem;
  background: rgba(226, 232, 240, 0.9);
  border-radius: 999px;
  margin: 0.19rem 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.aidan-nav-toggle.open .aidan-nav-toggle-bar:nth-child(1) {
  transform: translateY(0.42rem) rotate(45deg);
}

.aidan-nav-toggle.open .aidan-nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.aidan-nav-toggle.open .aidan-nav-toggle-bar:nth-child(3) {
  transform: translateY(-0.42rem) rotate(-45deg);
}

/* Make nav links feel like buttons */
.aidan-nav .nav-link {
  padding: 0.56rem 0.85rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.aidan-nav .nav-link:hover,
.aidan-nav .nav-link.active {
  background: var(--aidan-nav-hover);
  border-color: rgba(136, 186, 240, 0.3);
}

/* Mobile nav panel */
@media (max-width: 768px) {
  .aidan-nav-toggle {
    display: flex;
  }

  .navbar-collapse {
    position: fixed;
    top: 4.2rem;
    left: 0;
    right: 0;
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.28s ease, transform 0.28s ease;
    box-sizing: border-box;
    width: 100%;
    padding: 0 0.75rem;
  }

  .navbar-collapse.open {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 0.75rem 1rem 1rem;
    background: rgba(5, 21, 40, 0.96);
    border-bottom-left-radius: 1.25rem;
    border-bottom-right-radius: 1.25rem;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.55);
    opacity: 1;
    transform: translateY(0);
    height: calc(100vh - 4.2rem);
    max-height: none;
    overflow-x: hidden;
    overflow-y: visible;
  }

  .aidan-nav .nav-link {
    width: 100%;
    margin-bottom: 0.4rem;
  }

  .aidan-nav .nav-link:last-child {
    margin-bottom: 0;
  }
}