/*
 * Button. Presets, sizes and colours come from Site Settings.
 * Always one line: text never wraps. Padding and text size shrink on small
 * screens (the variables are fluid); if the label still does not fit, the
 * button takes the full width of its column, and view.js shrinks the text a
 * little more. Direction-neutral: logical properties only.
 */

.mosaic-button {
	display: flex;
	justify-content: start;
	min-inline-size: 0;
}

.mosaic-btn {
	position: relative;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	box-sizing: border-box;
	min-block-size: 44px;
	min-inline-size: 44px;
	max-inline-size: 100%;
	padding-block: var(--mosaic-btn-pad-block, 0.75rem);
	padding-inline: var(--mosaic-btn-pad-inline, 1.5rem);
	font-family: inherit;
	font-size: var(--mosaic-btn-font, 1rem);
	font-weight: var(--mosaic-btn-weight, 600);
	line-height: 1.2;
	text-align: center;
	text-decoration: none;
	cursor: pointer;
	border: 1px solid transparent;
	border-radius: var(--mosaic-btn-radius, 0.5rem);
	transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.mosaic-btn__label {
	min-inline-size: 0;
	overflow: hidden;
	white-space: nowrap;
	text-overflow: ellipsis;
}

/* Set by view.js when the label does not fit the column. */
.mosaic-btn.is-full {
	inline-size: 100%;
}

/* Announced by screen readers only. */
.mosaic-btn__note {
	position: absolute;
	inline-size: 1px;
	block-size: 1px;
	margin: -1px;
	padding: 0;
	overflow: hidden;
	clip-path: inset(50%);
	white-space: nowrap;
}

.mosaic-btn:focus-visible {
	outline: var(--mosaic-focus-width, 3px) solid var(--mosaic-color-focus, currentColor);
	outline-offset: 2px;
}

/* Presets. Pressing counts as hover, so touch screens get the same feedback. */
.mosaic-btn--primary {
	color: var(--mosaic-btn-primary-text, #fff);
	background: var(--mosaic-btn-primary-bg, #2b4acb);
	border-color: var(--mosaic-btn-primary-border, #2b4acb);
}

.mosaic-btn--primary:hover,
.mosaic-btn--primary:active {
	color: var(--mosaic-btn-primary-hover-text, #fff);
	background: var(--mosaic-btn-primary-hover-bg, #1f378f);
}

.mosaic-btn--secondary {
	color: var(--mosaic-btn-secondary-text, #fff);
	background: var(--mosaic-btn-secondary-bg, #1d2330);
	border-color: var(--mosaic-btn-secondary-border, #1d2330);
}

.mosaic-btn--secondary:hover,
.mosaic-btn--secondary:active {
	color: var(--mosaic-btn-secondary-hover-text, #fff);
	background: var(--mosaic-btn-secondary-hover-bg, #000);
}

.mosaic-btn--outline {
	color: var(--mosaic-btn-outline-text, #2b4acb);
	background: var(--mosaic-btn-outline-bg, transparent);
	border-color: var(--mosaic-btn-outline-border, #2b4acb);
}

.mosaic-btn--outline:hover,
.mosaic-btn--outline:active {
	color: var(--mosaic-btn-outline-hover-text, #fff);
	background: var(--mosaic-btn-outline-hover-bg, #2b4acb);
}

.mosaic-btn--ghost {
	color: var(--mosaic-btn-ghost-text, #1d2330);
	background: var(--mosaic-btn-ghost-bg, transparent);
	border-color: var(--mosaic-btn-ghost-border, transparent);
}

.mosaic-btn--ghost:hover,
.mosaic-btn--ghost:active {
	color: var(--mosaic-btn-ghost-hover-text, #1d2330);
	background: var(--mosaic-btn-ghost-hover-bg, #eef0f4);
}

.mosaic-btn--link {
	color: var(--mosaic-btn-link-text, #2b4acb);
	background: var(--mosaic-btn-link-bg, transparent);
	border-color: var(--mosaic-btn-link-border, transparent);
	text-decoration: underline;
}

.mosaic-btn--link:hover,
.mosaic-btn--link:active {
	color: var(--mosaic-btn-link-hover-text, #1f378f);
	background: var(--mosaic-btn-link-hover-bg, transparent);
}

@media (prefers-reduced-motion: reduce) {
	.mosaic-btn {
		transition: none;
	}
}

/* Smooth scrolling for "scroll to a section" buttons, unless the visitor prefers less motion. */
@media (prefers-reduced-motion: no-preference) {
	html {
		scroll-behavior: smooth;
	}
}

/* Icon (or small image), small text and the text block. */
.mosaic-btn {
	gap: 0.5em;
}

.mosaic-btn--icon-end {
	flex-direction: row-reverse;
}

.mosaic-btn__icon {
	display: inline-flex;
	flex: none;
	align-items: center;
	font-size: 1.1em;
	transition: transform 0.25s ease;
}

.mosaic-btn__icon img {
	display: block;
	inline-size: auto;
	block-size: 1.6em;
	max-inline-size: none;
}

.mosaic-btn__text {
	display: flex;
	flex-direction: column;
	align-items: center;
	min-inline-size: 0;
}

.mosaic-btn__sub {
	max-inline-size: 100%;
	overflow: hidden;
	font-size: 0.75em;
	font-weight: 400;
	opacity: 0.85;
	text-overflow: ellipsis;
	white-space: nowrap;
}

/* Icon only: a square button; the text is for screen readers. */
.mosaic-btn--icon-only {
	padding-inline: var(--mosaic-btn-pad-block, 0.75rem);
	gap: 0;
}

.mosaic-btn--icon-only .mosaic-btn__text {
	position: absolute;
	inline-size: 1px;
	block-size: 1px;
	margin: -1px;
	overflow: hidden;
	clip-path: inset(50%);
	white-space: nowrap;
}

.mosaic-btn--icon-only .mosaic-btn__icon {
	font-size: 1.35em;
}

.mosaic-btn--icon-fx-nudge:hover .mosaic-btn__icon { transform: translateX(0.3em); }
.mosaic-btn--icon-fx-grow:hover .mosaic-btn__icon { transform: scale(1.25); }
.mosaic-btn--icon-fx-spin:hover .mosaic-btn__icon { transform: rotate(360deg); }
[dir="rtl"] .mosaic-btn--icon-fx-nudge:hover .mosaic-btn__icon { transform: translateX(-0.3em); }

/*
 * Hover effects (the "Hover effect" choice). They also play while a touch screen presses the
 * button. Speed: --mosaic-btn-fx-time. Layers use --mosaic-btn-fx (the Effect colour).
 */
.mosaic-btn--speed-slow { --mosaic-btn-fx-time: 0.7s; }
.mosaic-btn--speed-normal { --mosaic-btn-fx-time: 0.35s; }
.mosaic-btn--speed-fast { --mosaic-btn-fx-time: 0.18s; }

.mosaic-btn--fx-lift,
.mosaic-btn--fx-grow,
.mosaic-btn--fx-shadow,
.mosaic-btn--fx-ring {
	transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform var(--mosaic-btn-fx-time, 0.2s) ease, box-shadow var(--mosaic-btn-fx-time, 0.2s) ease;
}

.mosaic-btn--fx-lift:hover,
.mosaic-btn--fx-lift:active {
	transform: translateY(-3px);
	box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.mosaic-btn--fx-grow:hover,
.mosaic-btn--fx-grow:active {
	transform: scale(1.05);
}

.mosaic-btn--fx-shadow:hover,
.mosaic-btn--fx-shadow:active {
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.mosaic-btn--fx-ring:hover,
.mosaic-btn--fx-ring:active {
	box-shadow: 0 0 0 5px var(--mosaic-btn-fx, rgba(43, 74, 203, 0.3));
}

/*
 * Layered effects (fills, ripple, slant, borders). The layer sits inside the button, clipped to
 * its shape, under the text. Because the button itself does not clip, a tooltip can still show.
 */
.mosaic-btn--fx-fill-start,
.mosaic-btn--fx-fill-end,
.mosaic-btn--fx-fill-top,
.mosaic-btn--fx-fill-bottom,
.mosaic-btn--fx-door,
.mosaic-btn--fx-ripple,
.mosaic-btn--fx-skew,
.mosaic-btn--fx-two-tone,
.mosaic-btn--fx-border-slide,
.mosaic-btn--fx-border-box,
.mosaic-btn--fx-border-draw {
	position: relative;
	isolation: isolate;
}

.mosaic-btn__fx {
	--mosaic-origin-start: left;
	--mosaic-origin-end: right;
	position: absolute;
	inset: 0;
	z-index: -1;
	overflow: hidden;
	border-radius: inherit;
	pointer-events: none;
}

[dir="rtl"] .mosaic-btn__fx {
	--mosaic-origin-start: right;
	--mosaic-origin-end: left;
}

.mosaic-btn__fx::before,
.mosaic-btn__fx::after {
	content: "";
	position: absolute;
	inset: 0;
	background: var(--mosaic-btn-fx, rgba(0, 0, 0, 0.22));
	transition: transform var(--mosaic-btn-fx-time, 0.35s) ease, clip-path var(--mosaic-btn-fx-time, 0.35s) ease, opacity var(--mosaic-btn-fx-time, 0.35s) ease;
}

/* Only some effects use the second layer. */
.mosaic-btn__fx::after {
	display: none;
}

.mosaic-btn--fx-fill-start .mosaic-btn__fx::before { transform: scaleX(0); transform-origin: var(--mosaic-origin-start) center; }
.mosaic-btn--fx-fill-end .mosaic-btn__fx::before { transform: scaleX(0); transform-origin: var(--mosaic-origin-end) center; }
.mosaic-btn--fx-fill-top .mosaic-btn__fx::before { transform: scaleY(0); transform-origin: center top; }
.mosaic-btn--fx-fill-bottom .mosaic-btn__fx::before { transform: scaleY(0); transform-origin: center bottom; }
.mosaic-btn--fx-door .mosaic-btn__fx::before { transform: scaleX(0); transform-origin: center; }
.mosaic-btn--fx-ripple .mosaic-btn__fx::before { clip-path: circle(0% at 50% 50%); }

.mosaic-btn--fx-skew .mosaic-btn__fx::before {
	inset-inline: -25%;
	transform: translateX(-125%) skewX(-20deg);
}

[dir="rtl"] .mosaic-btn--fx-skew .mosaic-btn__fx::before {
	transform: translateX(125%) skewX(20deg);
}

/* Two shades: the second layer follows the first a moment later. */
.mosaic-btn--fx-two-tone .mosaic-btn__fx::before { transform: translateY(101%); }
.mosaic-btn--fx-two-tone .mosaic-btn__fx::after {
	display: block;
	background: rgba(0, 0, 0, 0.18);
	transform: translateY(101%);
	transition-delay: 0.08s;
}

/* Border effects. */
.mosaic-btn--fx-border-slide .mosaic-btn__fx::before {
	inset: auto 0 0;
	block-size: 3px;
	transform: scaleX(0);
	transform-origin: var(--mosaic-origin-start) center;
}

.mosaic-btn--fx-border-box .mosaic-btn__fx::before {
	background: none;
	border: 2px solid var(--mosaic-btn-fx, currentColor);
	border-radius: inherit;
	opacity: 0;
	transform: scale(1.15);
}

.mosaic-btn--fx-border-draw .mosaic-btn__fx::before,
.mosaic-btn--fx-border-draw .mosaic-btn__fx::after {
	display: block;
	block-size: 2px;
	transform: scaleX(0);
}

.mosaic-btn--fx-border-draw .mosaic-btn__fx::before { inset: 0 0 auto; transform-origin: var(--mosaic-origin-start) center; }
.mosaic-btn--fx-border-draw .mosaic-btn__fx::after { inset: auto 0 0; transform-origin: var(--mosaic-origin-end) center; }

/* The hover state of every layered effect. */
.mosaic-btn:is(.mosaic-btn--fx-fill-start, .mosaic-btn--fx-fill-end, .mosaic-btn--fx-fill-top, .mosaic-btn--fx-fill-bottom, .mosaic-btn--fx-door, .mosaic-btn--fx-skew, .mosaic-btn--fx-two-tone, .mosaic-btn--fx-border-slide, .mosaic-btn--fx-border-draw):is(:hover, :active) .mosaic-btn__fx::before,
.mosaic-btn:is(.mosaic-btn--fx-two-tone, .mosaic-btn--fx-border-draw):is(:hover, :active) .mosaic-btn__fx::after {
	transform: none;
}

[dir="rtl"] .mosaic-btn--fx-skew:is(:hover, :active) .mosaic-btn__fx::before {
	transform: none;
}

.mosaic-btn--fx-ripple:is(:hover, :active) .mosaic-btn__fx::before {
	clip-path: circle(80% at 50% 50%);
}

.mosaic-btn--fx-border-box:is(:hover, :active) .mosaic-btn__fx::before {
	opacity: 1;
	transform: scale(0.94);
}

/* Motions: they play once each time the pointer arrives. */
.mosaic-btn--fx-pulse:hover { animation: mosaic-btn-pulse calc(var(--mosaic-btn-fx-time, 0.35s) * 2) ease 1; }
.mosaic-btn--fx-bounce:hover { animation: mosaic-btn-bounce calc(var(--mosaic-btn-fx-time, 0.35s) * 2.4) ease 1; }
.mosaic-btn--fx-heartbeat:hover { animation: mosaic-btn-heartbeat calc(var(--mosaic-btn-fx-time, 0.35s) * 3) ease 1; }
.mosaic-btn--fx-rubber:hover { animation: mosaic-btn-rubber calc(var(--mosaic-btn-fx-time, 0.35s) * 2.4) ease 1; }
.mosaic-btn--fx-shake:hover { animation: mosaic-btn-shake calc(var(--mosaic-btn-fx-time, 0.35s) * 2) ease 1; }
.mosaic-btn--fx-flash:hover { animation: mosaic-btn-flash calc(var(--mosaic-btn-fx-time, 0.35s) * 3) ease 1; }

@keyframes mosaic-btn-pulse { 50% { transform: scale(1.08); } }
@keyframes mosaic-btn-bounce { 30% { transform: translateY(-8px); } 55% { transform: translateY(0); } 75% { transform: translateY(-3px); } }
@keyframes mosaic-btn-heartbeat { 14% { transform: scale(1.12); } 28% { transform: scale(1); } 42% { transform: scale(1.12); } 70% { transform: scale(1); } }
@keyframes mosaic-btn-rubber { 30% { transform: scale(1.2, 0.8); } 50% { transform: scale(0.85, 1.15); } 70% { transform: scale(1.08, 0.92); } }
@keyframes mosaic-btn-shake { 20% { transform: translateX(-5px); } 40% { transform: translateX(5px); } 60% { transform: translateX(-3px); } 80% { transform: translateX(3px); } }
@keyframes mosaic-btn-flash { 25%, 75% { opacity: 0.35; } 50% { opacity: 1; } }

/*
 * Tooltip: a short note next to the button, shown while the pointer is over it or it has the
 * keyboard focus (Escape hides it, see view.js). It is read through aria-describedby.
 */
.mosaic-btn__tip {
	position: absolute;
	z-index: 20;
	inline-size: max-content;
	max-inline-size: min(16rem, 80vw);
	padding: 0.4rem 0.7rem;
	color: #fff;
	font-size: 0.8125rem;
	font-weight: 400;
	line-height: 1.4;
	letter-spacing: 0;
	text-align: center;
	text-transform: none;
	white-space: normal;
	background: #1d2330;
	border-radius: 0.4rem;
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transition: opacity 0.15s ease, visibility 0.15s ease;
}

.mosaic-btn__tip::after {
	content: "";
	position: absolute;
	inline-size: 0.6rem;
	block-size: 0.6rem;
	background: inherit;
	rotate: 45deg;
}

.mosaic-btn:is(:hover, :focus-visible) .mosaic-btn__tip {
	opacity: 1;
	visibility: visible;
}

.mosaic-btn.is-tip-hidden .mosaic-btn__tip {
	opacity: 0;
	visibility: hidden;
}

.mosaic-btn--tip-top .mosaic-btn__tip,
.mosaic-btn--tip-bottom .mosaic-btn__tip {
	inset-inline-start: 50%;
	translate: -50% 0;
}

[dir="rtl"] .mosaic-btn--tip-top .mosaic-btn__tip,
[dir="rtl"] .mosaic-btn--tip-bottom .mosaic-btn__tip {
	translate: 50% 0;
}

.mosaic-btn--tip-top .mosaic-btn__tip { inset-block-end: calc(100% + 0.6rem); }
.mosaic-btn--tip-bottom .mosaic-btn__tip { inset-block-start: calc(100% + 0.6rem); }

.mosaic-btn--tip-top .mosaic-btn__tip::after {
	inset-block-end: -0.3rem;
	inset-inline-start: calc(50% - 0.3rem);
}

.mosaic-btn--tip-bottom .mosaic-btn__tip::after {
	inset-block-start: -0.3rem;
	inset-inline-start: calc(50% - 0.3rem);
}

.mosaic-btn--tip-start .mosaic-btn__tip,
.mosaic-btn--tip-end .mosaic-btn__tip {
	inset-block-start: 50%;
	translate: 0 -50%;
}

.mosaic-btn--tip-start .mosaic-btn__tip { inset-inline-end: calc(100% + 0.6rem); }
.mosaic-btn--tip-end .mosaic-btn__tip { inset-inline-start: calc(100% + 0.6rem); }

.mosaic-btn--tip-start .mosaic-btn__tip::after {
	inset-inline-end: -0.3rem;
	inset-block-start: calc(50% - 0.3rem);
}

.mosaic-btn--tip-end .mosaic-btn__tip::after {
	inset-inline-start: -0.3rem;
	inset-block-start: calc(50% - 0.3rem);
}

@media (prefers-reduced-motion: reduce) {
	.mosaic-btn--fx-lift:hover,
	.mosaic-btn--fx-lift:active,
	.mosaic-btn--fx-grow:hover,
	.mosaic-btn--fx-grow:active {
		transform: none;
	}

	.mosaic-btn[class*="mosaic-btn--fx-"]:hover {
		animation: none;
	}

	.mosaic-btn__fx::before,
	.mosaic-btn__fx::after,
	.mosaic-btn__icon,
	.mosaic-btn__tip {
		transition: none !important;
	}

	.mosaic-btn__icon {
		transform: none !important;
	}
}

/* Shape: the Site Settings radius unless a shape is chosen. */
.mosaic-btn--shape-square { border-radius: 0; }
.mosaic-btn--shape-rounded { border-radius: 0.5rem; }
.mosaic-btn--shape-pill { border-radius: 999px; }

/* Sizes (used by the Button group; a single Button sets its own padding and text size). */
.mosaic-btn--size-small {
	min-block-size: 36px;
	padding-block: calc(var(--mosaic-btn-pad-block, 0.75rem) * 0.6);
	padding-inline: calc(var(--mosaic-btn-pad-inline, 1.5rem) * 0.75);
	font-size: calc(var(--mosaic-btn-font, 1rem) * 0.875);
}

.mosaic-btn--size-large {
	min-block-size: 52px;
	padding-block: calc(var(--mosaic-btn-pad-block, 0.75rem) * 1.3);
	padding-inline: calc(var(--mosaic-btn-pad-inline, 1.5rem) * 1.35);
	font-size: calc(var(--mosaic-btn-font, 1rem) * 1.15);
}

/* Colours chosen for one button alone (the Button group). A class says which; a custom property holds the colour. */
.mosaic-btn.has-bg { background-color: var(--mb-bg); }
.mosaic-btn.has-text { color: var(--mb-text); }
.mosaic-btn.has-border { border-color: var(--mb-border); }
.mosaic-btn.has-hover-bg:is(:hover, :active) { background-color: var(--mb-hover-bg); }
.mosaic-btn.has-hover-text:is(:hover, :active) { color: var(--mb-hover-text); }