/**
 * Button
 *
 * Tokens only. No raw values. See assets/css/tokens.css
 */

.rc-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);

	/* Guarantees the 44px WCAG 2.5.5 target even at the small size. */
	min-height: var(--target-min);

	padding: var(--space-2) var(--space-4);
	border: var(--border-width-thick) solid transparent;
	border-radius: var(--radius-md);

	font-family: var(--font-body);
	font-size: var(--text-body);
	font-weight: var(--weight-semibold);
	line-height: var(--leading-normal);
	text-align: center;
	text-decoration: none;

	cursor: pointer;
	transition:
		background-color var(--duration-fast) var(--ease-standard),
		border-color var(--duration-fast) var(--ease-standard),
		color var(--duration-fast) var(--ease-standard);
}

.rc-button:focus-visible {
	outline: var(--focus-ring);
	outline-offset: var(--focus-ring-offset);
}

.rc-button .rc-icon {
	flex-shrink: 0;
}

/* --- Variants ------------------------------------------------------- */

.rc-button--variant-primary {
	background-color: var(--color-primary-600);
	border-color: var(--color-primary-600);
	color: var(--color-text-inverse);
}

.rc-button--variant-primary:hover {
	background-color: var(--color-primary-700);
	border-color: var(--color-primary-700);
	color: var(--color-text-inverse);
}

.rc-button--variant-secondary {
	background-color: transparent;
	border-color: var(--color-primary-600);
	color: var(--color-primary-700);
}

.rc-button--variant-secondary:hover {
	background-color: var(--color-primary-50);
	color: var(--color-primary-800);
}

.rc-button--variant-ghost {
	background-color: transparent;
	border-color: transparent;
	color: var(--color-primary-700);
}

.rc-button--variant-ghost:hover {
	background-color: var(--color-primary-50);
}

/*
 * Link variant sheds button geometry entirely. It exists so a caller can put
 * a text-style action into a slot that expects button props, without the
 * surrounding component knowing the difference.
 */
.rc-button--variant-link {
	min-height: 0;
	padding: 0;
	background: none;
	border-color: transparent;
	color: var(--color-link);
	text-decoration: underline;
	text-underline-offset: 0.2em;
}

.rc-button--variant-link:hover {
	color: var(--color-link-hover);
}

/* --- Sizes ---------------------------------------------------------- */

.rc-button--size-sm {
	padding: var(--space-1) var(--space-3);
	font-size: var(--text-small);
}

.rc-button--size-lg {
	padding: var(--space-3) var(--space-5);
	font-size: var(--text-body-lg);
}

/* --- States and modifiers ------------------------------------------- */

.rc-button--full {
	display: flex;
	width: 100%;
}

.rc-button--disabled,
.rc-button:disabled {
	opacity: 0.55;
	cursor: not-allowed;
	pointer-events: none;
}

/*
 * Buttons sitting on a dark surface — the hero, for example. Set by the
 * parent component rather than by a button prop, because the button should
 * not need to know what it is sitting on.
 */
.rc-on-dark .rc-button--variant-primary {
	background-color: var(--color-neutral-0);
	border-color: var(--color-neutral-0);
	color: var(--color-primary-700);
}

.rc-on-dark .rc-button--variant-primary:hover {
	background-color: var(--color-primary-50);
	color: var(--color-primary-800);
}

.rc-on-dark .rc-button--variant-secondary {
	border-color: var(--color-neutral-0);
	color: var(--color-neutral-0);
}

.rc-on-dark .rc-button--variant-secondary:hover {
	background-color: rgba(255, 255, 255, 0.12);
	color: var(--color-neutral-0);
}

.rc-on-dark .rc-button:focus-visible {
	outline-color: var(--color-neutral-0);
}