/*
 * Deliberately minimal. The button sits in the site theme's content, so it
 * inherits the theme's font and colours and only asks for the things a <button>
 * would otherwise get wrong inline. A theme that wants it styled differently
 * sets `cssClass` in the plugin settings and takes over from there.
 *
 * Two shapes, chosen by the `displayStyle` setting:
 *
 *   --link    it must read as a link, not as a form control. Every default a
 *             <button> brings is stripped.
 *   --themed  it must read as the theme's own button. The theme's `.btn` rules
 *             are what should win, so everything below is wrapped in :where(),
 *             which has zero specificity -- a single `.btn` selector beats it,
 *             and no !important is needed anywhere on either side.
 */

.contact-email-button {
	cursor: pointer;
}

.contact-email-button--link {
	padding: 0;
	border: 0;
	background: none;
	font: inherit;
	color: inherit;
	text-decoration: underline;
	text-decoration-style: dotted;
}

.contact-email-button--link:hover,
.contact-email-button--link:focus {
	text-decoration-style: solid;
}

/* Keep the focus ring: this is the one control on the page a keyboard user has
   to find, and browsers only draw a default ring on controls that have not had
   their background removed. */
.contact-email-button--link:focus-visible {
	outline: 2px solid currentColor;
	outline-offset: 2px;
}

/* The fallback for a theme with no button styling of its own. Anything the
   theme does define -- padding, radius, colours, hover -- overrides this,
   because :where() contributes no specificity at all. */
:where(.contact-email-button--themed) {
	display: inline-block;
	padding: .375rem .75rem;
	border: 1px solid currentColor;
	border-radius: .25rem;
	background: transparent;
	font: inherit;
	color: inherit;
	line-height: 1.5;
	text-align: center;
	text-decoration: none;
}

:where(.contact-email-button--themed:hover) {
	opacity: .85;
}

.contact-email-button[disabled] {
	cursor: default;
	opacity: .7;
}

.contact-email-button--link[disabled] {
	text-decoration: none;
}

.contact-email-link {
	overflow-wrap: anywhere;
}

.contact-email-noscript {
	font-style: italic;
	opacity: .8;
}

/*
 * Proof-of-work progress. Inline-flex so it sits next to the button in running
 * text without forcing a line break, and sized in em throughout so it scales
 * with whatever the surrounding font is.
 */
.contact-email-progress {
	display: inline-flex;
	align-items: center;
	gap: .5em;
	margin-left: .5em;
	vertical-align: middle;
}

/* A neutral grey rather than currentColor at low opacity: the fill is
   currentColor, and a track made the same way would be invisible against it. */
.contact-email-progress-track {
	display: block;
	width: 8em;
	height: .5em;
	border-radius: .25em;
	background: rgba(127, 127, 127, .35);
	overflow: hidden;
}

.contact-email-progress-fill {
	display: block;
	width: 0;
	height: 100%;
	background: currentColor;
	transition: width .1s linear;
}

.contact-email-progress-text {
	font-size: .85em;
	font-variant-numeric: tabular-nums;
	opacity: .8;
}