/* Defs */
@property --angle-1 {
	syntax: "<angle>";
	inherits: false;
	initial-value: -75deg;
}

@property --angle-2 {
	syntax: "<angle>";
	inherits: false;
	initial-value: -45deg;
}

:root {
	--global--size: clamp(2rem, 4vw, 5rem);
	--anim--hover-time: 400ms;
	--anim--hover-ease: cubic-bezier(0.25, 1, 0.5, 1);
}

/* Button Wrap Container */
.button-wrap {
	position: relative;
	z-index: 2;
	border-radius: 999vw;
	background: transparent;
	pointer-events: none;
	transition: all var(--anim--hover-time) var(--anim--hover-ease);
}

/* Button Shadow Container */
.button-shadow {
	--shadow-cuttoff-fix: 2em;
	position: absolute;
	width: calc(100% + var(--shadow-cuttoff-fix));
	height: calc(100% + var(--shadow-cuttoff-fix));
	top: calc(0% - var(--shadow-cuttoff-fix) / 2);
	left: calc(0% - var(--shadow-cuttoff-fix) / 2);
	filter: blur(clamp(2px, 0.125em, 12px));
	-webkit-filter: blur(clamp(2px, 0.125em, 12px));
	-moz-filter: blur(clamp(2px, 0.125em, 12px));
	-ms-filter: blur(clamp(2px, 0.125em, 12px));
	overflow: visible;
	pointer-events: none;
}

/* Shadow */
.button-shadow::after {
	content: "";
	position: absolute;
	z-index: 0;
	inset: 0;
	border-radius: 999vw;
	background: linear-gradient(180deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.1));
	width: calc(100% - var(--shadow-cuttoff-fix) - 0.25em);
	height: calc(100% - var(--shadow-cuttoff-fix) - 0.25em);
	top: calc(var(--shadow-cuttoff-fix) - 0.5em);
	left: calc(var(--shadow-cuttoff-fix) - 0.875em);
	padding: 0.125em;
	box-sizing: border-box;
	mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
	mask-composite: exclude;
	transition: all var(--anim--hover-time) var(--anim--hover-ease);
	overflow: visible;
	opacity: 1;
}

/* ========== BUTTON BASE STYLES ========== */

button {
	/* Basic Styling */
	--border-width: clamp(1px, 0.0625em, 4px);
	all: unset;
	cursor: pointer;
	position: relative;
	-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
	pointer-events: auto;
	z-index: 3;
	background: linear-gradient(
		-75deg,
		rgba(255, 255, 255, 0.05),
		rgba(255, 255, 255, 0.2),
		rgba(255, 255, 255, 0.05)
	);
	border-radius: 999vw;
	box-shadow: inset 0 0.125em 0.125em rgba(0, 0, 0, 0.05),
		inset 0 -0.125em 0.125em rgba(255, 255, 255, 0.5),
		0 0.25em 0.125em -0.125em rgba(0, 0, 0, 0.2),
		0 0 0.1em 0.25em inset rgba(255, 255, 255, 0.2),
		0 0 0 0 rgba(255, 255, 255, 1);
	backdrop-filter: blur(clamp(1px, 0.125em, 4px));
	-webkit-backdrop-filter: blur(clamp(1px, 0.125em, 4px));
	-moz-backdrop-filter: blur(clamp(1px, 0.125em, 4px));
	-ms-backdrop-filter: blur(clamp(1px, 0.125em, 4px));
	transition: all var(--anim--hover-time) var(--anim--hover-ease);
}

button:hover {
	transform: scale(0.975);
	backdrop-filter: blur(0.01em);
	-webkit-backdrop-filter: blur(0.01em);
	-moz-backdrop-filter: blur(0.01em);
	-ms-backdrop-filter: blur(0.01em);
	box-shadow: inset 0 0.125em 0.125em rgba(0, 0, 0, 0.05),
		inset 0 -0.125em 0.125em rgba(255, 255, 255, 0.5),
		0 0.15em 0.05em -0.1em rgba(0, 0, 0, 0.25),
		0 0 0.05em 0.1em inset rgba(255, 255, 255, 0.5),
		0 0 0 0 rgba(255, 255, 255, 1);
}

/* Button Text */
button span {
	position: relative;
	display: block;
	user-select: none;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	font-family: "Rowdies", sans-serif;
	letter-spacing: -0.05em;
	font-weight: 500;
	font-size: 1em;
	color: rgba(50, 50, 50, 1);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	text-shadow: 0em 0.25em 0.05em rgba(0, 0, 0, 0.1);
	transition: all var(--anim--hover-time) var(--anim--hover-ease);
	padding-inline: 1.5em;
	padding-block: 0.875em;
}

button:hover span {
	text-shadow: 0.025em 0.025em 0.025em rgba(0, 0, 0, 0.12);
}

/* Text */
button span::after {
	content: "";
	display: block;
	position: absolute;
	z-index: 1;
	width: calc(100% - var(--border-width)); /* Prevent overlapping border */
	height: calc(100% - var(--border-width));
	top: calc(0% + var(--border-width) / 2);
	left: calc(0% + var(--border-width) / 2);
	box-sizing: border-box;
	border-radius: 999vw;
	overflow: clip;
	background: linear-gradient(
		var(--angle-2),
		rgba(255, 255, 255, 0) 0%,
		rgba(255, 255, 255, 0.5) 40% 50%,
		rgba(255, 255, 255, 0) 55%
	);
	z-index: 3;
	mix-blend-mode: screen;
	pointer-events: none;
	background-size: 200% 200%;
	background-position: 0% 50%;
	background-repeat: no-repeat;
	transition: background-position calc(var(--anim--hover-time) * 1.25)
			var(--anim--hover-ease),
		--angle-2 calc(var(--anim--hover-time) * 1.25) var(--anim--hover-ease);
}

button:hover span::after {
	background-position: 25% 50%;
}

button:active span::after {
	background-position: 50% 15%;
	--angle-2: -15deg;
}

/* Touch Devices */
@media (hover: none) and (pointer: coarse) {
	button span::after,
	button:active span::after {
		--angle-2: -45deg;
	}
}

/* ========== BUTTON OUTLINE ========== */

/* Outline */
button::after {
	content: "";
	position: absolute;
	z-index: 1;
	inset: 0;
	border-radius: 999vw;
	width: calc(100% + var(--border-width));
	height: calc(100% + var(--border-width));
	top: calc(0% - var(--border-width) / 2);
	left: calc(0% - var(--border-width) / 2);
	padding: var(--border-width);
	box-sizing: border-box;
	background: conic-gradient(
			from var(--angle-1) at 50% 50%,
			rgba(0, 0, 0, 0.5),
			rgba(0, 0, 0, 0) 5% 40%,
			rgba(0, 0, 0, 0.5) 50%,
			rgba(0, 0, 0, 0) 60% 95%,
			rgba(0, 0, 0, 0.5)
		),
		linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5));
	mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
	mask-composite: exclude;
	transition: all var(--anim--hover-time) var(--anim--hover-ease),
		--angle-1 500ms ease;
	box-shadow: inset 0 0 0 calc(var(--border-width) / 2) rgba(255, 255, 255, 0.5);
}

button:hover::after {
	--angle-1: -125deg;
}

button:active::after {
	--angle-1: -75deg;
}

@media (hover: none) and (pointer: coarse) {
	button::after,
	button:hover::after,
	button:active::after {
		--angle-1: -75deg;
	}
}

/* Shadow Hover */
.button-wrap:has(button:hover) .button-shadow {
	filter: blur(clamp(2px, 0.0625em, 6px));
	-webkit-filter: blur(clamp(2px, 0.0625em, 6px));
	-moz-filter: blur(clamp(2px, 0.0625em, 6px));
	-ms-filter: blur(clamp(2px, 0.0625em, 6px));
	transition: filter var(--anim--hover-time) var(--anim--hover-ease);
}

.button-wrap:has(button:hover) .button-shadow::after {
	top: calc(var(--shadow-cuttoff-fix) - 0.875em);
	opacity: 1;
}

/* Rotation */
.button-wrap:has(button:active) {
	transform: rotate3d(1, 0, 0, 25deg);
}

.button-wrap:has(button:active) button {
	box-shadow: inset 0 0.125em 0.125em rgba(0, 0, 0, 0.05),
		inset 0 -0.125em 0.125em rgba(255, 255, 255, 0.5),
		0 0.125em 0.125em -0.125em rgba(0, 0, 0, 0.2),
		0 0 0.1em 0.25em inset rgba(255, 255, 255, 0.2),
		0 0.225em 0.05em 0 rgba(0, 0, 0, 0.05),
		0 0.25em 0 0 rgba(255, 255, 255, 0.75),
		inset 0 0.25em 0.05em 0 rgba(0, 0, 0, 0.15);
}

.button-wrap:has(button:active) .button-shadow {
	filter: blur(clamp(2px, 0.125em, 12px));
	-webkit-filter: blur(clamp(2px, 0.125em, 12px));
	-moz-filter: blur(clamp(2px, 0.125em, 12px));
	-ms-filter: blur(clamp(2px, 0.125em, 12px));
}

.button-wrap:has(button:active) .button-shadow::after {
	top: calc(var(--shadow-cuttoff-fix) - 0.5em);
	opacity: 0.75;
}

.button-wrap:has(button:active) span {
	text-shadow: 0.025em 0.25em 0.05em rgba(0, 0, 0, 0.12);
}