/**
 * ETERNA group — button system (mockup: gold gradient, white text, 5px radius)
 */

.eterna-btn {
	position: relative;
	z-index: 0;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	margin: 0;
	padding: 0.85rem 1.75rem;
	border: 1px solid transparent;
	border-radius: 5px;
	font-family: var(--eterna-font-body, "Manrope", Georgia, serif);
	font-size: var(--eterna-fs-md, 1.125rem);
	font-weight: 400;
	letter-spacing: 0.03em;
	line-height: 1.2;
	text-decoration: none;
	text-align: center;
	white-space: nowrap;
	cursor: pointer;
	appearance: none;
	overflow: hidden;
	isolation: isolate;
	transition:
		color 0.45s ease,
		border-color 0.45s ease,
		box-shadow 0.45s ease;
}

.eterna-btn::before,
.eterna-btn::after {
	content: "";
	position: absolute;
	inset: 0;
	border-radius: inherit;
	pointer-events: none;
	transition: opacity 0.45s ease;
}

.eterna-btn::before {
	z-index: -2;
	opacity: 0;
}

.eterna-btn::after {
	z-index: -1;
	opacity: 0;
	background: linear-gradient(
		115deg,
		transparent 32%,
		rgb(255 255 255 / 0.28) 50%,
		transparent 68%
	);
}

.eterna-btn:focus-visible {
	outline: 2px solid var(--eterna-gold-accent, #c4a35a);
	outline-offset: 3px;
}

.eterna-btn:disabled,
.eterna-btn.is-disabled {
	opacity: 0.45;
	cursor: not-allowed;
	pointer-events: none;
}

/* Primary — gold gradient + white text (mockup) */
.eterna-btn--primary {
	color: #ffffff;
	background-color: #c69a55;
	background-image: linear-gradient(180deg, #d4ae6a 0%, #c69a55 40%, #8e622f 100%);
	border-color: #8e622f;
	box-shadow:
		0 1px 2px rgb(0 0 0 / 0.1),
		inset 0 1px 0 rgb(255 255 255 / 0.14);
}

.eterna-btn--primary::before {
	background: linear-gradient(180deg, rgb(0 0 0 / 0.06) 0%, rgb(0 0 0 / 0.18) 100%);
}

.eterna-btn--primary:hover,
.eterna-btn--primary:focus-visible {
	color: #ffffff;
	border-color: #7a5428;
	box-shadow:
		0 6px 20px rgb(142 98 47 / 0.32),
		inset 0 1px 0 rgb(255 255 255 / 0.2);
}

.eterna-btn--primary:hover::before,
.eterna-btn--primary:focus-visible::before,
.eterna-btn--primary:hover::after,
.eterna-btn--primary:focus-visible::after {
	opacity: 1;
}

.eterna-btn--primary:active {
	box-shadow:
		0 2px 8px rgb(142 98 47 / 0.22),
		inset 0 2px 6px rgb(0 0 0 / 0.2);
}

.eterna-btn--primary:active::before {
	opacity: 1;
	background: linear-gradient(180deg, rgb(0 0 0 / 0.14) 0%, rgb(0 0 0 / 0.28) 100%);
}

.eterna-btn--primary:active::after {
	opacity: 0;
}

/* Ghost gold on dark (hero «Подзвонити») — gold border + gold text */
.eterna-btn--ghost-dark {
	color: #c69a55;
	background-color: transparent;
	background-image: none;
	border-color: #c69a55;
	box-shadow: none;
}

.eterna-btn--ghost-dark::before {
	background: linear-gradient(180deg, #d4ae6a 0%, #c69a55 40%, #8e622f 100%);
}

.eterna-btn--ghost-dark:hover,
.eterna-btn--ghost-dark:focus-visible {
	color: #ffffff;
	border-color: #8e622f;
	box-shadow: 0 6px 20px rgb(142 98 47 / 0.28);
}

.eterna-btn--ghost-dark:hover::before,
.eterna-btn--ghost-dark:focus-visible::before,
.eterna-btn--ghost-dark:hover::after,
.eterna-btn--ghost-dark:focus-visible::after {
	opacity: 1;
}

.eterna-btn--ghost-dark:active {
	box-shadow: inset 0 2px 6px rgb(0 0 0 / 0.22);
}

.eterna-btn--ghost-dark:active::before {
	opacity: 1;
	background: linear-gradient(180deg, #c69a55 0%, #8e622f 100%);
}

.eterna-btn--ghost-dark:active::after {
	opacity: 0;
}

.eterna-btn--ghost-light {
	color: var(--eterna-text, #1a1a1a);
	background-color: transparent;
	background-image: none;
	border-color: var(--eterna-gold, #a67c2d);
	box-shadow: none;
}

.eterna-btn--ghost-light::before {
	background: linear-gradient(180deg, #d4ae6a 0%, #c69a55 40%, #8e622f 100%);
}

.eterna-btn--ghost-light:hover,
.eterna-btn--ghost-light:focus-visible {
	color: #ffffff;
	border-color: #8e622f;
	box-shadow: 0 6px 20px rgb(142 98 47 / 0.24);
}

.eterna-btn--ghost-light:hover::before,
.eterna-btn--ghost-light:focus-visible::before,
.eterna-btn--ghost-light:hover::after,
.eterna-btn--ghost-light:focus-visible::after {
	opacity: 1;
}

.eterna-btn--ghost-light:active {
	box-shadow: inset 0 2px 6px rgb(0 0 0 / 0.2);
}

.eterna-btn--ghost-light:active::before {
	opacity: 1;
	background: linear-gradient(180deg, #c69a55 0%, #8e622f 100%);
}

.eterna-btn--ghost-light:active::after {
	opacity: 0;
}

.eterna-btn--sm {
	padding: 0.55rem 1.1rem;
	font-size: 1rem;
}

.eterna-btn--header {
	padding: 0.5rem 1.15rem;
	font-size: 0.95rem;
	font-weight: 500;
	letter-spacing: 0.04em;
	text-transform: none;
}

.eterna-btn--inline {
	padding: 0.75rem 1.5rem;
	flex-shrink: 0;
}

.eterna-btn--block {
	display: flex;
	width: 100%;
}

.eterna-btn-group {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.75rem 1rem;
}

@media (max-width: 960px) {
	/* Fill via ::before — matches button stacking (bg-color alone sits under overlays) */
	.eterna-btn--ghost-dark {
		background-color: var(--eterna-bg-header, #1a1a1a);
	}

	.eterna-btn--ghost-dark::before {
		opacity: 1;
		background: var(--eterna-bg-header, #1a1a1a);
	}

	.eterna-btn--ghost-dark:hover::before,
	.eterna-btn--ghost-dark:focus-visible::before {
		background: linear-gradient(180deg, #d4ae6a 0%, #c69a55 40%, #8e622f 100%);
	}

	.eterna-btn--ghost-dark:active::before {
		background: linear-gradient(180deg, #c69a55 0%, #8e622f 100%);
	}
}