/**
 * Learnomy micro-interaction utilities.
 *
 * Small, composable animation classes for buttons, hover effects,
 * scroll reveals, progress bars, and attention-drawing pulses.
 *
 * @package Learnomy
 */

/* ==========================================================================
   Button press effect
   ========================================================================== */

.lrn-btn:active,
.lrn-admin-btn:active {
	transform: scale(0.97);
}

/* ==========================================================================
   Hover lift
   ========================================================================== */

.lrn-hover-lift {
	transition: transform var(--lrn-dur, 120ms) var(--lrn-ease, ease-out),
	            box-shadow var(--lrn-dur, 120ms) var(--lrn-ease, ease-out);
}

.lrn-hover-lift:hover {
	transform: translateY(-2px);
	box-shadow: var(--lrn-shadow-md, 0 4px 12px rgba(0, 0, 0, 0.08));
}

/* ==========================================================================
   Fade-in on scroll (driven by Intersection Observer in animations.js)
   ========================================================================== */

.lrn-fade-in {
	opacity: 0;
	transform: translateY(10px);
	transition: opacity 0.4s ease, transform 0.4s ease;
}

.lrn-fade-in--visible {
	opacity: 1;
	transform: translateY(0);
}

/* ==========================================================================
   Pulse for attention
   ========================================================================== */

.lrn-pulse {
	animation: lrn-pulse 2s infinite;
}

@keyframes lrn-pulse {
	0%, 100% { opacity: 1; }
	50%      { opacity: 0.6; }
}

/* ==========================================================================
   Count-up placeholder (the actual counting is done in animations.js)
   ========================================================================== */

.lrn-count-up {
	display: inline-block;
}

/* ==========================================================================
   Checkmark animation (lesson complete)
   ========================================================================== */

.lrn-check-anim {
	display: inline-flex;
	align-items: center;
	justify-content: center;
}

.lrn-check-anim svg {
	stroke-dasharray: 50;
	stroke-dashoffset: 50;
	animation: lrn-check-draw 0.5s ease forwards;
}

@keyframes lrn-check-draw {
	to { stroke-dashoffset: 0; }
}

/* ==========================================================================
   Spinner (used on loading buttons, e.g. test-connection in payments settings)
   ========================================================================== */

.lrn-spin {
	animation: lrn-spin 0.8s linear infinite;
}

@keyframes lrn-spin {
	from { transform: rotate(0deg); }
	to   { transform: rotate(360deg); }
}

/* ==========================================================================
   Progress bar fill
   ========================================================================== */

.lrn-progress-fill {
	transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
	.lrn-hover-lift:hover {
		transform: none;
	}

	.lrn-fade-in {
		opacity: 1;
		transform: none;
		transition: none;
	}

	.lrn-pulse {
		animation: none;
	}

	.lrn-check-anim svg {
		animation: none;
		stroke-dashoffset: 0;
	}

	.lrn-progress-fill {
		transition: none;
	}

	/* Button press is instant — no transition needed, still feels responsive. */
}