/* HEADER */
.dropdown {
  width: 100%;
  position: relative;
}

.dropdown-btn {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dropdown-btn::after {
  content: '▾';
  margin-left: auto;
  transition: transform 0.3s ease;
}

.dropdown.open .dropdown-btn::after {
  transform: rotate(180deg);
}

.dropdown-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.77, 0.2, 0.05, 1);
  margin-left: 24px;
  padding-left: 12px;
  border-left: 1px dashed rgba(255, 255, 255, 0.2);
}

.dropdown.open .dropdown-menu {
  max-height: 500px;
  animation: fadeIn 0.4s ease forwards;
}

.dropdown-menu a {
  font-size: 14px;
  padding: 10px 16px;
  margin: 4px 0;
  border-left: 2px solid var(--accent);
  border-radius: 0 6px 6px 0;
  background: rgba(0, 0, 0, 0.1);
}

.dropdown-menu a:hover {
  background: rgba(79, 195, 247, 0.1);
}