/* src/components/basic/XWUINavMenuBar/XWUINavMenuBar.css */
/**
 * XWUINavMenuBar Component Styles
 * Structure and behavior only - colors come from CSS variables
 * 
 * Style Dependencies:
 * - Base: reset.css, typography.css, utilities.css
 * - Brand: brand/xwui/brand.css
 * - Style: style/modern/spacing.css
 * - Theme: theme/colors/{selected-theme}.css (MANDATORY - provides all color variables)
 * - Theme: theme/accents/{selected-accent}.css (MANDATORY - provides accent color variables)
 * - Lines: theme/lines/menu/*.css (component-specific border widths)
 * - Typography: theme/typography/*.css
 */

.xwui-menubar {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--bg-primary);
    border-bottom: var(--border-menu-width, var(--border-width-regular, 1.5px)) var(--border-menu-style, solid) var(--border-menu-color, var(--border-color));
    padding: 0;
}

.xwui-menubar-item {
    position: relative;
}

.xwui-menubar-button {
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    border: none;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    font-size: var(--font-size-sm, 0.875rem);
    transition: background 0.2s;
    border-radius: 0;
}

.xwui-menubar-button:hover {
    background: var(--bg-secondary);
}

.xwui-menubar-button:focus {
    outline: none;
    background: var(--bg-secondary);
}

.xwui-menubar-button:disabled,
.xwui-menubar-item-disabled .xwui-menubar-button {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Pull-down */
.xwui-menubar-item-open > .xwui-menubar-button {
    background: var(--bg-secondary);
}

.xwui-menubar-submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--bg-primary);
    border: var(--border-menu-width, var(--border-width-regular, 1.5px)) var(--border-menu-style, solid) var(--border-menu-color, var(--border-color));
    border-radius: var(--radius-menu, var(--radius-md, 8px));
    box-shadow: var(--shadow-lg);
    list-style: none;
    padding: var(--spacing-sm, 0.5rem);
    margin: 0;
    z-index: 1000;
}

.xwui-menubar-item-open > .xwui-menubar-submenu {
    display: block;
}

.xwui-menubar-subitem {
    position: relative;
}

.xwui-menubar-sublink {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm, 0.5rem);
    padding: var(--spacing-sm, 0.625rem) var(--spacing-md, 1rem);
    border-radius: var(--radius-menu, var(--radius-sm, 6px));
    text-decoration: none;
    color: var(--text-primary);
    cursor: pointer;
    white-space: nowrap;
}

.xwui-menubar-sublink:hover {
    background: var(--bg-secondary);
}

.xwui-menubar-subitem-disabled .xwui-menubar-sublink {
    opacity: 0.5;
    cursor: not-allowed;
}

.xwui-menubar-icon {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.xwui-menubar-icon svg {
    width: 1em;
    height: 1em;
}

.xwui-menubar-sublabel {
    flex: 1;
}

.xwui-menubar-subarrow {
    margin-left: auto;
    font-size: var(--font-size-sm, 0.875rem);
}

.xwui-menubar-subdivider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-sm, 0.5rem) 0;
    list-style: none;
}

/* Nested submenu (a dropdown entry that itself has children) opens on hover,
   flyout to the right, since its parent row has no click handler of its own. */
.xwui-menubar-submenu-nested {
    top: 0;
    left: 100%;
}

.xwui-menubar-subitem:hover > .xwui-menubar-submenu-nested {
    display: block;
}