@use "sass:list";
@use "sass:math";

////
/// Globals
///
/// @group settings/globals
////

// =========================================================
// Asset paths
// =========================================================

/// Path to the assets directory, with trailing slash.
///
/// @type String

$nhsuk-assets-path: "/assets/" !default;

/// Path or URL to the images folder, with trailing slash.
///
/// @type String

$nhsuk-images-path: "#{$nhsuk-assets-path}images/" !default;

/// Path or URL to the fonts folder, with trailing slash.
///
/// @type String

$nhsuk-fonts-path: "https://assets.nhs.uk/fonts/" !default;

// =========================================================
// Font families
// =========================================================

// @deprecated To be removed in v11.0
$nhsuk-font: "Frutiger W01" !default;

// @deprecated To be removed in v11.0
$nhsuk-font-fallback: arial, sans-serif !default;

// @deprecated To be removed in v11.0
$nhsuk-include-font-face: true !default;

/// Font families to use for all typography on screen media
///
/// @type List

$nhsuk-font-family: $nhsuk-font, $nhsuk-font-fallback !default;

/// Font families to use for print media
///
/// We recommend that you use system fonts when printing. This will avoid issues
/// with some printer drivers and operating systems.
///
/// @type List

$nhsuk-font-family-print: sans-serif !default;

/// Include the default @font-face declarations
///
/// Defaults to true if "Frutiger W01" appears in the $nhsuk-font-family
/// setting.
///
/// @type Boolean

$nhsuk-include-default-font-face: $nhsuk-include-font-face !default;

@if not list.index($nhsuk-font-family, "Frutiger W01") {
  $nhsuk-include-default-font-face: false;
}

// =========================================================
// Font weights
// =========================================================

// @deprecated To be removed in v11.0
$nhsuk-font-normal: 400 !default;

// @deprecated To be removed in v11.0
$nhsuk-font-bold: 600 !default;

/// Font weight for normal typography
///
/// @type Number

$nhsuk-font-weight-normal: $nhsuk-font-normal !default;

/// Font weight for bold typography
///
/// @type Number

$nhsuk-font-weight-bold: $nhsuk-font-bold !default;

/// Feature flag for Apple Dynamic Type
///
/// When set to true, $nhsuk-include-dynamic-type will automatically apply the
/// user's preferred text size on iOS and iPadOS devices.
///
/// Note: This flag adjusts `$nhsuk-root-font-size` from 16px to 17px when set.
/// Please review all custom sizes not calculated relative to the root font
/// size as they will not scale dynamically.
///
/// @type Boolean
///
/// @link https://developer.apple.com/design/human-interface-guidelines/typography#Supporting-Dynamic-Type

$nhsuk-include-dynamic-type: false !default;

/// Root font size
///
/// This is used to calculate rem sizes for the typography, and should match the
/// _effective_ font-size of your root (or html) element.
///
/// Ideally you should not be setting the font-size on the html or root element
/// in order to allow it to scale with user-preference, in which case this
/// should be set to 16px.
///
/// @type Number

$nhsuk-root-font-size: 16px !default;

@if $nhsuk-include-dynamic-type {
  $nhsuk-root-font-size: 17px;
}

// =========================================================
// Icon sizes
// =========================================================

$nhsuk-icon-size: 24px !default;
$nhsuk-icon-size-large: 32px !default;

// =========================================================
// Page layout
// =========================================================

/// Width of main container
///
/// @type Number

$nhsuk-page-width: 960px !default;

/// Map of grid column widths
///
/// @type Map

$nhsuk-grid-widths: (
  one-quarter: math.percentage(math.div(1, 4)),
  one-third: math.percentage(math.div(1, 3)),
  one-half: math.percentage(math.div(1, 2)),
  two-thirds: math.percentage(math.div(2, 3)),
  three-quarters: math.percentage(math.div(3, 4)),
  full: 100%
) !default;

/// Width of gutter between grid columns
///
/// @type Number

$nhsuk-gutter: 32px !default;

/// Width of half the gutter between grid columns
///
/// @type Number

$nhsuk-gutter-half: math.div($nhsuk-gutter, 2);

// =========================================================
// Borders
// =========================================================

$nhsuk-border-width-inset-text: 8px !default;
$nhsuk-chevron-border: 2px !default;
$nhsuk-hero-border: 1px !default;
$nhsuk-border-table-header-width: 2px !default;
$nhsuk-border-table-cell-width: 1px !default;
$nhsuk-border-radius: 4px !default;

/// Standard border width
///
/// @type Number

$nhsuk-border-width: 4px !default;

/// Form control border width
///
/// @type Number

$nhsuk-border-width-form-element: 2px !default;

/// Form group border width when in error state
///
/// @type Number

$nhsuk-border-width-form-group-error: $nhsuk-border-width !default;

/// Border width of focus outline
///
/// @type Number

$nhsuk-focus-width: 4px !default;

/// Hover width for form controls with a hover state
///
/// @type Number

$nhsuk-hover-width: 10px !default;

/// Button border radius
///
/// @type Number

$nhsuk-button-border-radius: 4px !default;

/// Button shadow size
///
/// @type Number

$nhsuk-button-shadow-size: 4px !default;

/// Globals (deprecated)
///

// @deprecated To be removed in v11.0
$nhsuk-base-font-size: $nhsuk-root-font-size;
$nhsuk-border-width-form-element-error: $nhsuk-border-width-form-element;
$nhsuk-border-width-mobile: $nhsuk-border-width;