/* local font file */
/* ======================================= */
@font-face {
	font-family: OpenDyslexic;
	src:
		local('OpenDyslexic-Regular'),
		url("OpenDyslexic-Regular.otf") format("opentype");
	font-display: swap;
}

/* keyframes */
/* ======================================= */
@keyframes blur-fade-in {
	from {
		filter: blur(20px);
		opacity: 0;
	}
}

@keyframes blur-fade-out {
	to {
		filter: blur(20px);
		opacity: 0;
	}
}

@keyframes fade {
	from {
		opacity: 0;
	}

	to {
		opacity: 1;
	}
}

@keyframes slide-from-right {
	from {
		transform: translateX(30px);
	}
}

@keyframes slide-to-left {
	to {
		transform: translateX(-30px);
	}
}

@keyframes scale-down {
	to {
		transform: scale(1);
	}
}

@keyframes scale-up {
	to {
		transform: scale(1.2);
	}
}

@keyframes shift-fade-in {
	0% {
		opacity: 0;
		transform: scale(0.6) translateY(-8px);
	}

	100% {
		opacity: 1;
	}
}

/* view transitions */
/* ======================================= */
::view-transition-old(root) {
	animation:
		190ms cubic-bezier(0.4, 0, 1, 1) both blur-fade-out,
		300ms cubic-bezier(0.4, 0, 0.2, 1) both slide-to-left;
}

::view-transition-new(root) {
	animation:
		210ms cubic-bezier(0, 0, 0.2, 1) 90ms both blur-fade-in,
		300ms cubic-bezier(0.4, 0, 0.2, 1) both slide-from-right;
}

/* remove animations */
/* ======================================= */
@media (prefers-reduced-motion) {
	*,
	::view-transition-group(*),
	::view-transition-old(*),
	::view-transition-new(*) {
		animation: none !important;
		transition: none !important;
	}
}

/* variables */
:root {
	/* lavender */
	--clr-primary-hue: 238;
	--clr-primary-saturation: 25%;
	--clr-primary-lightness: 69%;
	--clr-primary: hsl(var(--clr-primary-hue),
			var(--clr-primary-saturation),
			var(--clr-primary-lightness));

	/* green */
	--clr-secondary-hue: 68;
	--clr-secondary-saturation: 50%;
	--clr-secondary-lightness: 45%;
	--clr-secondary: hsl(var(--clr-secondary-hue),
			var(--clr-secondary-saturation),
			var(--clr-secondary-lightness));

	/* orange */
	--clr-accent-hue: 23;
	--clr-accent-saturation: 80%;
	--clr-accent-lightness: 56%;
	--clr-accent: hsl(var(--clr-accent-hue),
			var(--clr-accent-saturation),
			var(--clr-accent-lightness));

	/* black */
	--clr-black: #0e1610;
	--clr-black-hue: 135;
	--clr-black-saturation: 22%;
	--clr-black-lightness: 7%;

	/* midtone */
	--clr-gray: #bbbbbb;

	/* white */
	--clr-white: #fdf3e2;
	--clr-white-hue: 38;
	--clr-white-saturation: 87%;
	--clr-white-lightness: 94%;

	/* canvas */
	--canvas-bg: var(--clr-black);
	--canvas-txt: var(--clr-white);

	/* space / breathing */
	--spacer-s: 0.325rem;
	--spacer: 0.5rem;
	--spacer-m: 1rem;
	--spacer-l: 2rem;

	/* radius */
	--radi-s: 5px;
	--radi: 10px;
	--radi-m: 20px;
	--radi-l: 50px;

	/* font kerning */
	--letter-space-s: 0.025rem;
	--letter-space: 0.05rem;
	--letter-space-m: 0.125rem;

	/* font sizes */
	--size-body: 1rem;
	--size-small: 0.9rem;
	--size-micro: 0.75rem;
	--size-h6: 1.1rem;
	--size-h5: 1.2rem;
	--size-h4: 1.25rem;
	--size-h3: 1.5rem;
	--size-h2: 1.75rem;
	--size-h1: 2rem;
	--size-mega: 4rem;

	/* font weights */
	--weight-light: 200;
	--weight-normal: 400;
	--weight-medium: 500;
	--weight-bold: 900;

	/* container sizes */
	--container-s: 320px;
	--container: 640px;
	--container-m: 960px;
	--container-l: 1200px;


	/* font families */
	--font-system: system-ui,
		-apple-system,
		BlinkMacSystemFont,
		'Segoe UI',
		Roboto,
		Oxygen,
		Ubuntu,
		Cantarell,
		'Open Sans',
		'Helvetica Neue',
		sans-serif;
	--font-dyslexic: OpenDyslexic, 'Comic Sans', sans-serif;

	--font: var(--font-system);

	/* define user agent vars to theme */
	accent-color: var(--clr-accent);
}

/* reset & base */
/* ======================================= */
*,
*::after,
*::before {
	box-sizing: border-box;
}

:focus-visible,
.form__radio-wrapper:focus-within {
	outline-color: var(--clr-accent);
	outline-style: dashed;
	outline-width: 3px;
	outline-offset: 10px;
}

a {
	text-decoration: none;
}

a,
button,
label[for],
input[type=radio],
input[type=range] {
	cursor: pointer;
}

-webkit-slider-container {
	background-color: var(--clr-accent);
}

input {
	background-color: var(--canvas-bg);
	color: var(--canvas-txt);
	border-style: solid;
	border-color: currentColor;
	font-size: var(--size-h4);
	padding: var(--spacer-s);
	border-radius: var(--radi-s);
	max-width: 100%;
}

fieldset {
	border: unset;
	padding: unset;
	margin: unset;
}

legend {
	padding: unset;
	margin: var(--spacer-s) 0 var(--spacer);
}

/* utility */
/* ======================================= */
.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border-width: 0;
}

.skip-to-content-link {
	position: absolute;
	z-index: 99999999;
	left: 25%;
	background: var(--clr-accent);
	color: var(--canvas-bg);
	padding: var(--spacer);
	transform: translateY(-100%);
	transition: transform 0.3s;
}

.skip-to-content-link:focus {
	transform: translateY(0%);
}

/* global styles */
/* ======================================= */
body {
	padding: 0;
	margin: 0;
	background-color: var(--canvas-bg);
	color: var(--canvas-txt);
	font-family: var(--font, sans-serif);
	font-size: 16pt;
}

p {
	line-height: var(--pline-height, 1.5);
}

p:not(:first-of-type) {
	margin-block: var(--pblock-space, var(--spacer-m));
}

/* user reading width for site settings */
main {
	margin-inline: auto;
	max-width: clamp(var(--container-s), var(--user-reading-w, 100vw), var(--container-l));
	padding-left: var(--spacer-m);
	padding-right: var(--spacer-m);
	container-type: inline-size;
	container-name: main;
}

/* links */
/* ======================================= */
a:not(.button, .card__link, .skip-to-content-link) {
	letter-spacing: var(--letter-space);
	color: var(--link-clr, var(--clr-primary));
	transition:
		color 0.3s ease,
		border 0.3s ease-in-out;
	padding-bottom: var(--spacer-s);
	border-bottom: 2px var(--link-border-style, solid) hsl(var(--clr-primary-hue),
			calc(var(--clr-primary-saturation) + 20%),
			var(--clr-primary-lightness));

	--icon-fill: var(--link-clr, var(--clr-primary));

	&:visited {
		--link-clr: hsl(var(--clr-primary-hue),
				calc(var(--clr-primary-saturation) + 30%),
				calc(var(--clr-primary-lightness) - 5%));
	}

	&:hover,
	&:focus-visible {
		--link-clr: var(--clr-secondary);
		--link-border-style: dashed;
	}
}

/* buttons */
/* ======================================= */
.button {
	position: relative;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	text-align: center;
	flex-wrap: nowrap;
	min-width: var(--btn-w, 6rem);
	width: fit-content;
	max-width: 100%;
	padding: var(--btn-pad, var(--spacer) var(--spacer-l));
	background: var(--btn-bg, var(--clr-primary));
	border: 2px solid var(--btn-border, currentColor);
	border-radius: var(--btn-radius, var(--radi-m));
	color: var(--btn-clr, var(--canvas-bg));
	font-size: var(--btn-text-size, var(--size-h6));
	transition: all 300ms ease-in-out;
	gap: var(--spacer-s);

	--icon-fill: var(--btn-clr, var(--canvas-bg));

	&::before {
		content: '';
		display: block;
		position: absolute;
		inset: 0;
		z-index: -1;
		background-color: var(--btn-shadow, var(--canvas-txt));
		border-radius: var(--btn-radius, var(--radi-m));
		opacity: 0.9;
		transition: transform 200ms ease 20ms;
	}

	&:hover,
	&:focus-visible {
		transform: scale(1.05), translate(6px, -6px);

		--btn-bg: hsl(var(--clr-primary-hue),
				calc(var(--clr-primary-saturation) + 30%),
				var(--clr-primary-lightness));

		&::before {
			transform: translate(-6px, 6px);
		}
	}

	&:active {
		--btn-bg: hsl(var(--clr-primary-hue),
				calc(var(--clr-primary-saturation) + 30%),
				calc(var(--clr-primary-lightness) - 5%));

		&::before {
			opacity: 0.5;
			transform: translate(-2px, 2px);
		}
	}

	&+.button {
		margin-inline: var(--spacer-s);
	}
}

.button.button--large {
	--btn-text-size: var(--size-h3);
}

.button.button--secondary {
	--btn-bg: var(--clr-secondary);

	&:hover,
	&:focus-visible {
		--btn-bg: hsl(var(--clr-secondary-hue),
				calc(var(--clr-secondary-saturation) + 30%),
				var(--clr-secondary-lightness));
	}

	&:active {
		--btn-bg: hsl(var(--clr-secondary-hue),
				calc(var(--clr-secondary-saturation) + 30%),
				calc(var(--clr-secondary-lightness) - 5%));
	}
}

.button.button--accent {
	--btn-bg: var(--clr-accent);

	&:hover,
	&:focus-visible {
		--btn-bg: hsl(var(--clr-accent-hue),
				calc(var(--clr-accent-saturation) + 30%),
				var(--clr-accent-lightness));
	}

	&:active {
		--btn-bg: hsl(var(--clr-accent-hue),
				calc(var(--clr-accent-saturation) + 30%),
				calc(var(--clr-accent-lightness) - 5%));
	}
}

.button.button--icon {
	--btn-w: 2rem;
	width: 3.5rem;
	height: 3.5rem;
	--btn-radius: 100%;
	--btn-bg: transparent;
	--btn-shadow: transparent;
	--btn-border: transparent;
	--btn-pad: var(--spacer);
	--btn-clr: var(--clr-primary);

	&:hover,
	&:focus-visible {
		transform: scale(1.3);
		--btn-bg: var(--canvas-bg);
	}
}

.button.button--icon.button--accent {
	--btn-clr: var(--clr-accent);
}

.button.button--icon.button--secondary {
	--btn-clr: var(--clr-secondary);
}

/* forms / inputs */
/* ======================================= */
.form__label {
	text-transform: capitalize;
}

.form__radio-wrapper {
	position: relative;
	display: inline-flex;
	align-items: center;
	gap: var(--spacer-s);
}

.form__radio {
	position: absolute;
	inset: 0;
	opacity: 0;
	height: 100%;
	width: 100%;
}

/* cards */
/* ======================================= */
.card {
	position: relative;
	border-radius: var(--radi);
	background-color: var(--canvas-bg);
	border: 1px solid transparent;
	padding: var(--spacer-m);
	width: var(--card-width, clamp(var(--container-s), 45ch, var(--container-m)));
	max-width: 100%;
	transition: all 300ms linear;

	& .card__header {
		margin-top: 0;
		padding-bottom: var(--spacer-s);
		border-bottom: 2px solid var(--clr-secondary);
	}

	& .card__link {
		display: inline-block;
		color: inherit;
		min-width: 100%;
	}

	& .card__link--overlay {
		position: absolute;
		inset: 0;
		border-radius: inherit;
	}

	& .card__actions {
		display: flex;
		align-items: center;
		gap: var(--spacer);
	}
}

.card+.card {
	margin-top: var(--spacer-l);
}

.card:has(.card__link):hover,
.card:focus-within {
	transform: scale(1.1);
}

.card.card--bordered {
	border-color: var(--clr-secondary);
}

.card.card--translucent {
	background-color: hsla(var(--clr-primary-hue),
			calc(var(--clr-primary-saturation) + 50%),
			calc(var(--clr-primary-lightness) - 60%),
			var(--card-translucent-bg-opacity, .25));
}

.card__actions.card__actions--center {
	justify-content: center;
}

.card__actions+.card__actions {
	margin-top: var(--spacer);
}

/* dialogs */
/* ======================================= */
.dialog__close {
	position: absolute;
	top: var(--spacer);
	right: var(--spacer);

	--btn-w: fit-content;
	--btn-pad: var(--spacer);
	--btn-bg: var(--canvas-bg);
	--btn-border: var(--clr-secondary);
	--btn-radius: var(--radi-s);
	--btn-clr: var(--canvas-txt);
	--btn-text-size: var(--size-body);

	&:hover,
	&:focus-visible {
		--btn-bg: var(--clr-secondary);
		--btn-clr: var(--canvas-bg);
	}
}

.dialog__title {
	display: inline-block;
	margin-top: unset;
}

dialog {
	min-width: max(25vw, 250px);
	max-width: 100%;
	position: relative;
	background-color: var(--canvas-bg);
	color: var(--canvas-txt);
	border-color: var(--clr-secondary);
	border-radius: var(--radi-s);
	padding: var(--spacer-l);
}

dialog[open]::backdrop {
	background-color: hsla(var(--clr-secondary-hue),
			calc(var(--clr-secondary-saturation) + 50%),
			calc(var(--clr-secondary-lightness) - 60%),
			0.55);
}

/* tooltips */
/* ======================================= */
[data-tooltip] {
	position: relative;
}

[data-tooltip]::after {
	position: absolute;
	opacity: 0;
	pointer-events: none;
	content: attr(data-tooltip);
	left: 0;
	top: calc(80% + var(--spacer));
	border-radius: var(--radi);
	background-color: var(--canvas-bg);
	text-transform: capitalize;
	color: var(--canvas-txt);
	z-index: 30;
	padding: var(--spacer);
	width: max(fit-content, 300px);
	transform: translateY(-20px);
	transition: all 300ms cubic-bezier(0.25, 0.8, 0.25, 1);
}

[data-tooltip]:hover::after,
[data-tooltip]:focus-visible::after {
	opacity: 1;
	transform: translateY(0);
	transition-duration: 300ms;
}


/* theme site settings */
/* ======================================= */
[data-font="dyslexic"] {
	--font: var(--font-dyslexic);
}

[data-font="system"] {
	--font: var(--font-system);
}

[data-mode="light"] {
	--canvas-bg: var(--clr-white);
	--canvas-txt: var(--clr-black);

	--clr-gray: #565656;

	--clr-primary-lightness: 47%;
	--clr-secondary-lightness: 19%;
	--clr-accent-lightness: 39%;

	--card-translucent-bg-opacity: .05;
}