/*
 * 全站首屏 Loader 样式表。
 *
 * 采用纯 CSS 实现居中遮罩与 Bar (Indeterminate) 动画，
 * 默认保持不可见与非阻塞；仅在 html 拥有 active 状态时呈现。
 */

/* 默认安全状态：不可见且不拦截指针事件，防止无脚本或异常时卡住页面 */
#pattrix-page-loader {
	position: fixed;
	inset: 0;
	z-index: 2147483000;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: var(--pattrix-color-bg, var(--wp--preset--color--base, #ffffff));
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transition: opacity 0.22s ease-out, visibility 0.22s ease-out;
}

/* 仅在启动脚本激活 dataset.pattrixLoader = 'active' 时全屏可见并接管交互 */
html[data-pattrix-loader="active"] #pattrix-page-loader {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
}

/* 放行状态：平滑淡出并恢复不可见 */
html[data-pattrix-loader="ready"] #pattrix-page-loader {
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
}

/* JS 放行安全阀失效（如旧缓存页脚本被剥离）时，激活态到时自行退场，不依赖脚本。 */
html[data-pattrix-loader="active"] #pattrix-page-loader {
	animation: pattrix-page-loader-fallback 0.22s ease-out 2.4s forwards;
}

@keyframes pattrix-page-loader-fallback {
	to {
		opacity: 0;
		visibility: hidden;
		pointer-events: none;
	}
}

.pattrix-page-loader__content {
	display: grid;
	justify-items: center;
	align-content: center;
	gap: 20px;
	padding: var(--wp--preset--spacing--20, 16px);
}

.pattrix-page-loader__brand {
	display: flex;
	align-items: center;
	justify-content: center;
	max-width: min(220px, 60vw);
	width: 100%;
}

.pattrix-page-loader__brand img {
	max-width: 100%;
	height: auto;
	display: block;
}

.pattrix-page-loader__brand > [data-pattrix-critical-loader-logo] {
	display: block;
	width: 100%;
	min-width: 0;
}

/* 品牌 Logo 缺失时的文字回退样式 */
.pattrix-page-loader__logo-fallback {
	font-family: var(--wp--preset--font-family--heading, sans-serif);
	font-size: clamp(1.25rem, 4vw, 1.5rem);
	font-weight: 700;
	letter-spacing: 0.08em;
	color: var(--pattrix-color-contrast, #111111);
	text-transform: uppercase;
}

/* 不定进度（Indeterminate）指示条的静态轨道 */
.pattrix-page-loader__bar {
	position: relative;
	width: 112px;
	height: 2px;
	background-color: var(--pattrix-color-base-2, #e5e5e5);
	border-radius: 999px;
	overflow: hidden;
}

.pattrix-page-loader__bar > span {
	position: absolute;
	inset: 0 auto 0 0;
	width: 42%;
	height: 100%;
	background-color: var(--pattrix-color-brand, #e60012);
	border-radius: 999px;
	transform: translateX(-120%);
	animation: pattrix-loader-bar 1.1s linear infinite;
}

@keyframes pattrix-loader-bar {
	0% {
		transform: translateX(-120%);
	}
	100% {
		transform: translateX(290%);
	}
}

/* 减少动态效果偏好支持：前景条居中静态停靠，取消淡出动画 */
@media (prefers-reduced-motion: reduce) {
	#pattrix-page-loader {
		transition: none;
	}

	.pattrix-page-loader__bar > span {
		animation: none;
		transform: translateX(138%);
	}
}