/**
 * VidDefer – Deferred Video Embeds — Frontend Styles
 *
 * SASS-structure conventions:
 *   1. Variables / Custom Properties
 *   2. Base placeholder
 *   3. Overlay
 *   4. Play button variants
 *   5. Title & GDPR notice
 *   6. Loading & loaded states
 *   7. Responsive
 *
 * @package VidDefer
 */

/* ─── 1. Variables ──────────────────────────────────────────────── */
:root {
	--viddefer-transition-speed: 0.25s;
	--viddefer-btn-size: 68px;
	--viddefer-btn-size-sm: 48px;
	--viddefer-radius: 4px;
	--viddefer-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* ─── 2. Base placeholder ───────────────────────────────────────── */
.viddefer-placeholder {
	position: relative;
	display: block;
	width: 100%;
	padding-top: 56.25%;
	/* 16:9 ratio */
	background-color: #1a1a1a;
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	cursor: pointer;
	overflow: hidden;
	border-radius: var(--viddefer-radius);

	/* GPU-accelerate the thumbnail background */
	will-change: transform;
}

/* Hover: subtle zoom on thumbnail */
.viddefer-placeholder:not(.viddefer-loaded):hover {
	background-size: 105%;
	transition: background-size var(--viddefer-transition-speed) ease;
}

/* Focus ring for keyboard navigation */
.viddefer-placeholder:focus-visible {
	outline: 3px solid #fff;
	outline-offset: 3px;
}

/* ─── 3. Overlay ────────────────────────────────────────────────── */
.viddefer-overlay {
	position: absolute;
	inset: 0;
	transition: opacity var(--viddefer-transition-speed) ease;
	pointer-events: none;
}

/* ─── 4. Play button variants ───────────────────────────────────── */
.viddefer-play-btn {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	background: none;
	border: none;
	padding: 0;
	cursor: pointer;
	transition: transform var(--viddefer-transition-speed) ease,
		opacity var(--viddefer-transition-speed) ease;
	display: flex;
	align-items: center;
	justify-content: center;
	pointer-events: none;
	/* clicks pass through to the wrapper */
}

/* Hover: scale up the play button */
.viddefer-placeholder:not(.viddefer-loaded):hover .viddefer-play-btn {
	transform: translate(-50%, -50%) scale(1.1);
}

/* Default (YouTube-style) */
.viddefer-play-btn svg {
	filter: drop-shadow(0 2px 6px rgba(0, 0, 0, .6));
	width: var(--viddefer-btn-size);
	height: auto;
}

/* Minimal style */
.viddefer-play-minimal svg {
	width: 56px;
	height: 56px;
	filter: drop-shadow(0 2px 8px rgba(0, 0, 0, .7));
}

/* Circle style */
.viddefer-play-circle svg {
	width: 80px;
	height: 80px;
}

/* ─── 5. Title & GDPR ───────────────────────────────────────────── */
.viddefer-title {
	position: absolute;
	bottom: 12px;
	left: 12px;
	right: 12px;
	color: #fff;
	font-family: var(--viddefer-font);
	font-size: 14px;
	font-weight: 600;
	line-height: 1.4;
	text-shadow: 0 1px 3px rgba(0, 0, 0, .8);
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	pointer-events: none;
}

.viddefer-gdpr {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	padding: 10px 14px;
	background: rgba(0, 0, 0, .75);
	color: #e8e8e8;
	font-family: var(--viddefer-font);
	font-size: 12px;
	line-height: 1.5;
	text-align: center;
}

.viddefer-gdpr a {
	color: #7ec8e3;
	text-decoration: underline;
}

/* ─── 6. Loading & loaded states ────────────────────────────────── */

/* Spinner while iframe loads */
.viddefer-loading::before {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 36px;
	height: 36px;
	margin: -18px 0 0 -18px;
	border: 3px solid rgba(255, 255, 255, .25);
	border-top-color: #fff;
	border-radius: 50%;
	animation: wpvll-spin 0.7s linear infinite;
	z-index: 10;
}

@keyframes wpvll-spin {
	to {
		transform: rotate(360deg);
	}
}

/* Loaded: the iframe fills the slot */
.viddefer-loaded {
	cursor: default;
}

.viddefer-loaded iframe,
.viddefer-loaded video {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	border: none;
	border-radius: var(--viddefer-radius);
}

/* Remove pointer-events spinner once loaded */
.viddefer-loaded::before {
	display: none;
}

/* ─── 7. Responsive ─────────────────────────────────────────────── */
@media (max-width: 480px) {

	.viddefer-play-btn svg,
	.viddefer-play-default svg {
		width: var(--viddefer-btn-size-sm);
		height: auto;
	}

	.viddefer-play-circle svg {
		width: 60px;
		height: 60px;
	}

	.viddefer-title {
		font-size: 12px;
	}
}

/* ─── Respect reduced-motion preference ─────────────────────────── */
@media (prefers-reduced-motion: reduce) {

	.viddefer-placeholder,
	.viddefer-play-btn,
	.viddefer-overlay {
		transition: none;
	}

	.viddefer-loading::before {
		animation: none;
	}
}