/* Avanzamento con metronomo. */
.rfl-metronomo {
	position: relative;
	display: inline-block;
	width: 34px;
	height: 40px;
	flex: 0 0 auto;
}
.rfl-metronomo-corpo {
	position: absolute;
	left: 3px; right: 3px; bottom: 0;
	height: 30px;
	background: linear-gradient(180deg, #7c3aed, #3b82f6);
	clip-path: polygon(30% 0, 70% 0, 100% 100%, 0 100%);
	border-radius: 3px;
}
.rfl-metronomo-asta {
	position: absolute;
	left: 50%; bottom: 4px;
	width: 3px; height: 34px;
	margin-left: -1.5px;
	background: #0f172a;
	border-radius: 2px;
	transform-origin: 50% 100%;
	transform: rotate(22deg);
	transition: transform .35s cubic-bezier(.45,.05,.55,.95);
}
.rfl-metronomo-asta::after {
	content: '';
	position: absolute;
	top: 6px; left: -4px;
	width: 11px; height: 11px;
	border-radius: 50%;
	background: #f59e0b;
}
.rfl-metronomo.is-sinistra .rfl-metronomo-asta { transform: rotate(-22deg); }
.rfl-metronomo.is-fermo .rfl-metronomo-asta { transform: rotate(0deg); }

.rfl-avanzamento-overlay {
	position: fixed;
	inset: 0;
	z-index: 100000;
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(15, 23, 42, .45);
	backdrop-filter: blur(2px);
}
.rfl-avanzamento-box {
	display: grid;
	grid-template-columns: auto 1fr auto;
	gap: 8px 14px;
	align-items: center;
	min-width: 300px;
	max-width: 440px;
	padding: 18px 20px;
	border-radius: 14px;
	background: #fff;
	color: #0f172a;
	box-shadow: 0 24px 60px rgba(15, 23, 42, .35);
}
.rfl-avanzamento-testo { display: flex; flex-direction: column; gap: 2px; }
.rfl-avanzamento-tempo { font-size: 12px; color: #64748b; }
.rfl-avanzamento-audio {
	border: 1px solid #e2e8f0;
	background: #f8fafc;
	border-radius: 8px;
	font-size: 16px;
	padding: 4px 8px;
	cursor: pointer;
}
.rfl-avanzamento-barra {
	grid-column: 1 / -1;
	height: 10px;
	border-radius: 999px;
	background: #e2e8f0;
	overflow: hidden;
}
.rfl-avanzamento-barra > div {
	height: 100%;
	border-radius: 999px;
	background: linear-gradient(90deg, #3b82f6, #7c3aed);
	transition: width .4s ease;
}
.rfl-avanzamento-indeterminata > div {
	width: 35%;
	animation: rfl-scorri 1.2s infinite ease-in-out;
}
@keyframes rfl-scorri {
	0% { transform: translateX(-100%); }
	100% { transform: translateX(300%); }
}

/* Barra in pagina (renderizzata dal server). */
.rfl-avanzamento {
	display: grid;
	grid-template-columns: auto 1fr auto;
	gap: 6px 12px;
	align-items: center;
	max-width: 820px;
	padding: 12px 14px;
	margin: 10px 0;
	border: 1px solid #e2e8f0;
	border-radius: 12px;
	background: #fff;
}
.rfl-avanzamento .rfl-avanzamento-testa { display: contents; }
.rfl-avanzamento .rfl-avanzamento-barra { grid-column: 1 / -1; }
.rfl-avanzamento-perc { font-weight: 700; }