/**
 * Universal Dark Mode Toggle - estilos del botón flotante.
 * Sin filtros, oklch() relativo ni z-index fuera de rango: valores simples
 * y ampliamente soportados para no depender de navegadores muy recientes.
 */
.udmt-btn-fixed {
	all: unset;
	box-sizing: border-box;
	position: fixed;
	bottom: 20px;
	right: 20px;
	z-index: 2147483647; /* valor máximo válido de z-index */
	background-color: rgba(13, 13, 13, 0.85);
	color: #ffffff;
	border: 1px solid rgba(255, 255, 255, 0.15);
	border-radius: 50%;
	width: 45px;
	height: 45px;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	font-size: 22px;
	line-height: 1;
	-webkit-backdrop-filter: blur(5px);
	backdrop-filter: blur(5px);
	transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
	filter: none !important; /* nunca se invierte a sí mismo */
	isolation: isolate;
}

.udmt-btn-fixed:hover,
.udmt-btn-fixed.udmt-btn-active {
	background-color: #89f336;
	color: #0d0d0d;
	transform: scale(1.1);
	-webkit-backdrop-filter: none !important;
	backdrop-filter: none !important;
	filter: none !important;
	border-color: rgba(0, 0, 0, 0.2);
}

.udmt-btn-fixed .udmt-btn-icon {
	display: inline-block;
	line-height: 1;
	filter: none !important;
	backdrop-filter: none !important;
	color: inherit !important;
	background: transparent !important;
}

.udmt-btn-fixed:focus-visible {
	outline: 2px solid #89f336;
	outline-offset: 2px;
}

@media (max-width: 480px) {
	.udmt-btn-fixed {
		bottom: 12px;
		right: 12px;
		width: 40px;
		height: 40px;
		font-size: 19px;
	}
}