/*
	Define common sizes and spacings
*/
:root {
	--theme-navbar-height: 8rem;
	--theme-mobile-toc-height: 4rem;
	--theme-left-sidebar-width: 22rem;
	--theme-right-sidebar-width: 18rem;
	/*
		Minimum visual horizontal spacing from the edges of the viewport,
		and between vertically arranged elements
	*/
	--min-spacing-inline: 1rem;
	/* Vertical spacing around the article content and the right sidebar */
	--doc-padding-block: 0.5rem;
	--max-width: 100%;
	--cur-viewport-height: 100vh;
	/* Font sizes */
	--theme-text-lg: 1.25rem;
	--theme-text-base: 1rem;
	--theme-text-sm: 0.9375rem;
	--theme-text-xs: 0.875rem;
	/* Font weights */
	--theme-font-weight-semibold: 600;
	/* Animation helpers */
	--theme-ease-bounce: cubic-bezier(0.4, 2.5, 0.6, 1);
}

@media (min-width: 50em) {
	:root {
		--min-spacing-inline: 1.5rem;
		--doc-padding-block: 1rem;
		--max-width: 46em;
		--theme-text-sm: 0.875rem;
		--theme-text-xs: 0.8125rem;
	}
}

@media (min-width: 72em) {
	:root {
		--doc-padding-block: 2rem;
	}
}

/* Use dynamic viewport height if the unit is supported by the browser */
@supports (height: 100dvh) {
	:root {
		--cur-viewport-height: 100dvh;
	}
}

/*
	Define common fonts and colors
*/
:root,
::backdrop {
	--font-fallback: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial, sans-serif,
		Apple Color Emoji, Segoe UI Emoji;
	--font-body: 'Inter', system-ui, var(--font-fallback);
	--font-mono: 'Inter', Consolas, 'Andale Mono WT', 'Andale Mono', 'Lucida Console',
		'Lucida Sans Typewriter', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Liberation Mono',
		'Nimbus Mono L', Monaco, 'Courier New', Courier, monospace;

	/*
		Variables with --color-base prefix define
		the hue, and saturation values to be used for
		hsla colors.

		Example:
		--color-base-{color}: {hue}, {saturation};
	*/

	--color-base-white: 0, 0%;
	--color-base-black: 240, 100%;
	--color-base-gray: 250, 14%;
	--color-base-blue: 212, 100%;
	--color-base-blue-dark: 212, 72%;
	--color-base-teal: 180, 80%;
	--color-base-green: 158, 79%;
	--color-base-orange: 22, 100%;
	--color-base-purple: 269, 79%;
	--color-base-red: 351, 100%;
	--color-base-yellow: 41, 100%;
	--color-base-petrol: 189, 80%;   /* bum-petrol-500-brand */
	--color-base-petrol-dark: 188, 100%;  /* bum-petrol-700 */
	--color-base-petrol-light: 180, 67%; /* bum-petrol-50 */
	--color-base-brand: 237 100%;   /* bum-primary-500-brand */
	--color-base-brand-dark: 231 42%;  /* bum-primary-700 */
	--color-base-brand-light: 215, 100%; /* bum-primary-50 */
	--color-base-brand-text: 223, 11%;
	--color-base-brand-dark-theme: 215, 81%;
	--color-base-brand-dark-text: 214, 21%;
	--color-base-brand-dark-bg: 222, 28%;

		/*
			Color palettes are made using --color-base 
			variables, along with a lightness value to
			define different variants.
		*/

	--color-gray-5: var(--color-base-gray), 5%;
	--color-gray-10: var(--color-base-gray), 10%;
	--color-gray-20: var(--color-base-gray), 20%;
	--color-gray-30: var(--color-base-gray), 30%;
	--color-gray-40: var(--color-base-gray), 40%;
	--color-gray-50: var(--color-base-gray), 50%;
	--color-gray-60: var(--color-base-gray), 60%;
	--color-gray-70: var(--color-base-gray), 70%;
	--color-gray-80: var(--color-base-gray), 80%;
	--color-gray-90: var(--color-base-gray), 90%;
	--color-gray-95: var(--color-base-gray), 95%;

	--color-white: var(--color-base-white), 0%;
	--color-blue: var(--color-base-blue), 61%;
	--color-blue-dark: var(--color-base-blue-dark), 39%;
	--color-green: var(--color-base-green), 42%;
	--color-orange: var(--color-base-orange), 50%;
	--color-purple: var(--color-base-purple), 54%;
	--color-red: var(--color-base-red), 54%;
	--color-yellow: var(--color-base-yellow), 59%;
	--color-brand: var(--color-base-brand), 67%;
	--color-brand-dark: var(--color-base-brand-dark), 49%;
	--color-brand-light: var(--color-base-brand-light), 97%;
	--color-brand-text: var(--color-base-brand-text), 12%;
	--color-brand-text-light: var(--color-base-brand-text), 22%;
	--color-brand-text-lighter: var(--color-base-brand-text), 32%;
	
	--color-brand-dark-theme: var(--color-base-brand-dark-theme), 59%;
	--color-brand-dark-text: var(--color-base-brand-dark-text), 94%;
	--color-brand-dark-bg: var(--color-base-brand-dark-bg), 14%;
}

:root,
::backdrop {
	color-scheme: light;
	--theme-accent: hsla(var(--color-brand), 1);
	--theme-accent-secondary: hsla(var(--color-brand-dark), 1);
	--theme-dim: hsla(var(--color-gray-70), 1);
	--theme-dim-light: hsla(var(--color-gray-80), 1);
	--theme-dim-lighter: hsla(var(--color-gray-90), 1);
	--theme-accent-opacity: 0.1;
	--theme-divider: hsla(var(--color-brand), 0.1);
	--theme-shade-subtle: hsla(var(--color-brand), 0.3);
	--theme-text: hsla(var(--color-brand-text), 1);
	--theme-text-light: hsla(var(--color-brand-text), 1);
	--theme-text-lighter: hsla(var(--color-brand-text), 1);
	--theme-bg: hsl(0, 0%, 100%);
	--theme-bg-gradient-top: var(--theme-bg);
	--theme-bg-gradient-bottom: #fdfeff;
	--theme-bg-hover: hsla(var(--color-brand-light), 1);
	--theme-bg-offset: hsla(var(--color-brand), 0.1);
	--theme-bg-accent: hsla(var(--color-brand-light), 1);
	--theme-backdrop-overlay: hsla(var(--color-gray-50), 0.8);
	--theme-code-inline-bg: hsla(var(--color-brand), 0.1);
	--theme-code-inline-text: var(--theme-text);
	--theme-code-bg: hsla(257, 31%, 22%, 1);
	--theme-code-tabs: hsla(257, 38%, 32%, 1);
	--theme-code-text: hsla(var(--color-gray-95), 1);
	--theme-aside-bg: hsla(var(--color-brand-light), 1);
	--theme-navbar-bg: var(--theme-bg);
	--theme-selection-color: hsla(var(--color-brand), 1);
	--theme-selection-bg: hsla(var(--color-brand), var(--theme-accent-opacity));
	--theme-code-selection-bg: hsla(var(--color-brand), 0.4);
	--theme-code-mark-bg: hsl(226, 50%, 33%);
	--theme-code-mark-border: hsl(224, 50%, 54%);
	--theme-code-ins-bg: hsl(122, 22%, 23%);
	--theme-code-ins-border: hsl(128, 42%, 38%);
	--theme-code-ins-text: hsl(128, 31%, 65%);
	--theme-code-del-bg: hsl(338, 40%, 26%);
	--theme-code-del-border: hsl(338, 46%, 53%);
	--theme-code-del-text: hsl(338, 36%, 70%);

	--theme-bg-gradient: linear-gradient(
		180deg,
		var(--theme-bg-gradient-top),
		var(--theme-bg-gradient-top) calc(var(--theme-navbar-height) + var(--theme-mobile-toc-height)),
		var(--theme-bg-gradient-bottom)
	);

	--theme-glow-highlight: transparent;
	--theme-glow-diffuse: hsla(var(--color-base-brand), 65%, 0.5);
	--theme-glow-blur: 10px;
}

:root.theme-dark,
.theme-dark ::backdrop {
	color-scheme: dark;
	/* We lighten-up the orange in dark mode, to help with link contrast. */
	--color-orange: var(--color-base-orange), 60%;
	--theme-accent-opacity: 0.4;
	--theme-accent: hsla(var(--color-brand-dark-theme), 1);
	--theme-accent-secondary: hsla(var(--color-brand-dark-theme), 1);
	--theme-text-accent: hsla(var(--color-brand-dark-theme), 1);
	--theme-dim: hsla(var(--color-gray-90), 0.3);
	--theme-dim-light: hsla(var(--color-gray-90), 0.2);
	--theme-dim-lighter: hsla(var(--color-gray-90), 0.1);
	--theme-divider: hsla(var(--color-gray-95), 0.1);
	--theme-shade-subtle: hsla(var(--color-gray-95), 0.4);
	--theme-text: hsla(var(--color-brand-dark-text), 1);
	--theme-text-light: hsla(var(--color-brand-dark-text), 1);
	--theme-text-lighter: hsla(var(--color-brand-dark-text), 1);
	--theme-bg: hsl(214, 18%, 8%);
	--theme-bg-accent: #1A202E;
	--theme-bg-gradient-top: var(--theme-bg);
	--theme-bg-gradient-bottom: hsl(251, 29%, 11%);
	--theme-bg-hover: hsla(var(--color-brand), 0.2);
	--theme-bg-offset: #0008;
	--theme-backdrop-overlay: hsla(var(--color-gray-10), 0.8);
	--theme-code-inline-bg: #ffffff16;
	--theme-code-inline-text: var(--theme-text-light);
	--theme-code-bg: hsla(257, 31%, 11%, 1);
	--theme-code-tabs: hsla(261, 40%, 21%, 1);
	--theme-code-text: hsla(var(--color-base-white), 80%, 1);
	--theme-navbar-bg: var(--theme-bg);
	--theme-selection-color: hsla(var(--color-base-white), 100%, 1);
	--theme-code-mark-bg: hsl(224, 60%, 25%);
	--theme-code-mark-border: hsl(225, 42%, 46%);
	--theme-code-ins-bg: hsl(122, 29%, 17%);
	--theme-code-ins-border: hsl(128, 41%, 32%);
	--theme-code-ins-text: hsl(128, 31%, 55%);
	--theme-code-del-bg: hsl(337, 47%, 19%);
	--theme-code-del-border: hsl(340, 34%, 43%);
	--theme-code-del-text: hsl(340, 24%, 65%);

	--theme-glow-highlight: hsla(var(--color-base-brand), 50%, 1);
	--theme-glow-diffuse: hsla(var(--color-base-brand), 35%, 0.4);
}

::selection {
	color: var(--theme-selection-color);
	background-color: var(--theme-selection-bg);
}