// This assumes the presence of variables inside layout.less. DO NOT import it separately.
// Assumes various variables defined there.

@min-width-search: unit( 350px / @font-size-browser, em );
@max-width-search: unit( 580px / @font-size-browser, em );
@margin-horizontal-search: unit( 40px / @font-size-browser, em );

// The logo is variable width but typically consists of:
// - a icon (50x50)
// - a wordmark (approx 120px)
@min-width-logo: unit( 180px / @font-size-browser, em );

@min-width-personal-tools: unit( 300px / @font-size-browser, em );

@padding-horizontal-page-container: 30px;
@padding-horizontal-page-container-ems: unit( @padding-horizontal-page-container / @font-size-browser, em );
@margin-horizontal-sidebar-button-icon-ems: unit( @margin-horizontal-sidebar-button-icon / @font-size-browser, em );
@padding-horizontal-page-container-ems: unit( @padding-horizontal-page-container / @font-size-browser, em );

// the width of the container if you exclude consideration for search
@min-width-container-base: @padding-horizontal-page-container-ems + @size-sidebar-button + @margin-horizontal-sidebar-button-icon-ems + @min-width-logo + @min-width-personal-tools + @padding-horizontal-page-container-ems;

@min-width-supported: @min-width-container-base + @min-width-search;
@width-comfortable: @min-width-container-base + @margin-horizontal-search + @max-width-search + @margin-horizontal-search;

@height-personal-tools: 2em;

.skin-vector-search-header {

	// Header components
	#p-search {
		// Override values to reflect new behaviour.
		min-width: @min-width-search;
		max-width: 100%;
		margin: 0 0 0 @margin-horizontal-search;

		#searchform {
			margin-left: auto;
			max-width: @max-width-search;
		}
	}

	// Support IE9: float will be disabled if display flex is supported
	#p-search,
	#mw-sidebar-button {
		float: left;
	}

	#p-personal {
		text-align: right;
		flex-basis: @min-width-personal-tools;
		margin-left: @margin-horizontal-search;

		// Support IE9: This is reset in @support query below if Flexbox is available.
		float: right;
	}
}

// If flexbox supported reset the floats that are supporting IE9
// When IE9 is no longer supported this entire query can be dropped.
@supports ( display: flex ) {
	.skin-vector-search-header {
		.mw-header {
			flex-wrap: wrap;
		}

		#p-personal,
		#p-search {
			flex-grow: 1;
			// Disable the float: left rule for IE9 support
			float: none;
		}

		#mw-sidebar-button {
			// Disable the float: left rule for IE9 support
			float: none;
		}
	}
}