/**
 * Vandadcast UI components (phase 3).
 *
 * @package Vandadcast
 */

/* Buttons */
.vc-btn,
.vandadcast-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--vc-space-2);
	min-height: 44px;
	padding: 0.45rem 0.85rem;
	border-radius: var(--vc-radius-sm);
	border: 1px solid transparent;
	background: var(--vc-color-primary);
	color: #fff;
	text-decoration: none;
	font-weight: 600;
	font-size: var(--vc-font-size-sm);
	cursor: pointer;
	transition: filter 0.15s ease, transform 0.12s ease, border-color 0.15s ease;
}

.vc-btn:hover,
.vc-btn:focus-visible,
.vandadcast-btn:hover,
.vandadcast-btn:focus-visible {
	filter: brightness(1.05);
}

.vc-btn--ghost,
.vandadcast-btn--ghost {
	background: transparent;
	color: var(--vc-color-primary);
	border-color: color-mix(in srgb, var(--vc-color-primary) 45%, transparent);
}

.vc-btn--play,
.vandadcast-btn--play {
	cursor: pointer;
	border: 0;
	font: inherit;
}

.vc-btn--play.is-playing,
.vandadcast-btn--play.is-playing {
	filter: brightness(1.08);
}

/* Cards */
.vc-card,
.vandadcast-card__link {
	display: flex;
	flex-direction: column;
	gap: var(--vc-space-2);
	height: 100%;
	padding: var(--vc-space-4);
	border-radius: var(--vc-radius-md);
	border: 1px solid var(--vc-color-border);
	background: var(--vc-color-surface);
	text-decoration: none;
	color: inherit;
	transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

.vc-card:hover,
.vc-card:focus-visible,
.vandadcast-card__link:hover,
.vandadcast-card__link:focus-visible {
	transform: translateY(-2px);
	box-shadow: var(--vc-shadow-md);
	border-color: color-mix(in srgb, var(--vc-color-primary) 55%, transparent);
}

/* Empty state */
.vc-empty,
.vandadcast-empty {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: var(--vc-space-3);
	margin: var(--vc-space-6) auto;
	padding: var(--vc-space-6) var(--vc-space-4);
	max-width: 36rem;
	text-align: center;
	border-radius: var(--vc-radius-lg);
	border: 1px dashed var(--vc-color-border);
	background: color-mix(in srgb, var(--vc-color-surface) 88%, transparent);
	color: var(--vc-color-muted);
}

.vc-empty__icon {
	width: 56px;
	height: 56px;
	opacity: 0.72;
	color: var(--vc-color-primary);
}

.vc-empty__title {
	margin: 0;
	font-size: var(--vc-font-size-lg);
	font-weight: 700;
	color: var(--vc-color-text);
}

.vc-empty__text {
	margin: 0;
	font-size: var(--vc-font-size-sm);
	line-height: var(--vc-line-height);
}

/* Skeleton */
.vc-skeleton {
	background: linear-gradient(
		90deg,
		color-mix(in srgb, var(--vc-color-text) 8%, transparent) 0%,
		color-mix(in srgb, var(--vc-color-text) 14%, transparent) 50%,
		color-mix(in srgb, var(--vc-color-text) 8%, transparent) 100%
	);
	background-size: 200% 100%;
	animation: vc-skeleton-shimmer 1.2s ease-in-out infinite;
	border-radius: var(--vc-radius-sm);
}

@keyframes vc-skeleton-shimmer {
	0% { background-position: 100% 0; }
	100% { background-position: -100% 0; }
}

@media (prefers-reduced-motion: reduce) {
	.vc-skeleton {
		animation: none;
	}
}

/* Cover placeholder from seed (inline background set in PHP) */
.vc-cover-placeholder,
.vandadcast-episode-hub__hero-cover--placeholder,
.vandadcast-episode-hub__side-thumb-fallback {
	display: block;
	width: 100%;
	height: 100%;
	min-height: 3rem;
	background: linear-gradient(
		135deg,
		color-mix(in srgb, var(--vc-color-primary) 40%, transparent),
		color-mix(in srgb, var(--vc-color-accent) 36%, transparent)
	);
}

/* Keyboard focus (a11y) */
.vandadcast :is(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
	outline: var(--vc-focus-ring);
	outline-offset: var(--vc-focus-offset);
}

.vandadcast :is(a, button, input, select, textarea, summary, [tabindex]):focus:not(:focus-visible) {
	outline: none;
}