/* 
 * Header Menu (Desktop) Styles
 * Logic: Horizontal Top Level, Vertical Dropdowns for Level 2+.
 */

/* --- Level 1: Horizontal Bar --- */
.wsdt-header-menu-container ul.menu {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
  padding: 0;
  margin: 0;
}

.wsdt-header-menu-container ul.menu > li {
  position: relative;
}

/* Level 1 Links */
.wsdt-header-menu-container ul.menu > li > a {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) 0;
  font-family: var(--h-font-family);
  font-weight: var(--h-font-weight);
  color: var(--text-title);
  text-decoration: none;
  transition: color var(--transition-base);
  position: relative;
}

/* Hover Effect (Underline) */
.wsdt-header-menu-container ul.menu > li > a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  /* height: 2px; */
  height: var(--border-width-md);
  background-color: var(--color-secondary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.wsdt-header-menu-container ul.menu > li:hover > a::after,
.wsdt-header-menu-container ul.menu > li > a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* --- Level 2+: Dropdowns --- */
.wsdt-header-menu-container ul.menu li ul.menu {
  position: absolute;
  top: 100%;
  left: 0;
  /* min-width: 240px; */
  min-width: calc(var(--unit-base) * 48);
  background-color: var(--surface-bg);
  box-shadow: var(--shadow-card-idle);
  border-top: var(--border-width-md) solid var(--color-secondary);
  border-radius: 0 0 var(--radius-md) var(--radius-md);

  /* Hidden State */
  opacity: 0;
  visibility: hidden;
  /* transform: translateY(10px); */
  transform: translateY(var(--space-sm));
  transition: all var(--transition-base);
  z-index: var(--z-header);

  /* Vertical Layout */
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: var(--space-xs) 0;
}

/* Show Dropdown on Hover/Focus */
.wsdt-header-menu-container ul.menu li:hover > ul.menu,
.wsdt-header-menu-container ul.menu li:focus-within > ul.menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Level 2 Links */
.wsdt-header-menu-container ul.menu li ul.menu li a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--text-body);
  font-size: var(--font-size-sm);
  /* border-bottom: 1px solid var(--border-subtle); */
  border-bottom: var(--border-width-sm) solid var(--border-subtle);
}

.wsdt-header-menu-container ul.menu li ul.menu li:last-child a {
  border-bottom: none;
}

.wsdt-header-menu-container ul.menu li ul.menu li a:hover {
  background-color: var(--bg-gray-lighter);
  color: var(--color-secondary);
}

/* --- Level 3+: Flyout (Right Side) --- */
.wsdt-header-menu-container ul.menu li ul.menu li ul.menu {
  top: 0;
  left: 100%;
  /* margin-top: -5px; */
  margin-top: calc(var(--space-xs) * -1); /* Slight offset alignment */
}