/*====================
ページ遷移（約0.14s・スナップ）
====================*/

.site-page-transition {
	position: fixed;
	inset: 0;
	z-index: 100000;
	overflow: hidden;
	pointer-events: none;
	visibility: hidden;
}

.site-page-transition__panel {
	position: absolute;
	top: 0;
	bottom: 0;
	width: 52%;
	background: #16346d;
	transform: scaleX(0);
	will-change: transform;
}

.site-page-transition__panel--left {
	left: 0;
	transform-origin: left center;
}

.site-page-transition__panel--right {
	right: 0;
	transform-origin: right center;
	background: #00297d;
}

.site-page-transition__flash {
	position: absolute;
	inset: 0;
	opacity: 0;
	background: linear-gradient(
		118deg,
		transparent 42%,
		rgba(255, 255, 255, 0.55) 50%,
		transparent 58%
	);
	pointer-events: none;
}

/* シャッター（画面を隠すパネル）は使用しない */
body.is-page-transitioning .site-page-transition__panel,
body.is-page-transitioning .site-page-transition__flash {
	display: none;
}

.site-page-transition__veil {
	position: absolute;
	inset: 0;
	opacity: 0;
	/* 白いベールはフリーズに見えるため使わない */
	background: transparent;
	backdrop-filter: none;
	-webkit-backdrop-filter: none;
}

.site-page-transition__logo {
	position: absolute;
	top: 50%;
	left: 50%;
	width: clamp(120px, 18vw, 220px);
	height: clamp(120px, 18vw, 220px);
	transform: translate(-50%, -50%) scale(0.98);
	opacity: 0;
	background: center / contain no-repeat url("../../img/logo/logo_icon_navy.svg");
	filter: blur(0.2px);
}

.site-page-transition__sweeps {
	position: absolute;
	inset: 0;
	opacity: 0;
}

.site-page-transition__sweep {
	position: absolute;
	left: -30%;
	width: 60%;
	height: clamp(24px, 6vw, 72px);
	border-radius: 999px;
	background: linear-gradient(
		90deg,
		rgba(22, 52, 109, 0) 0%,
		rgba(22, 52, 109, 0.22) 35%,
		rgba(22, 52, 109, 0.34) 50%,
		rgba(22, 52, 109, 0.22) 65%,
		rgba(22, 52, 109, 0) 100%
	);
	box-shadow:
		0 0 0 1px rgba(255, 255, 255, 0.16) inset,
		0 10px 24px rgba(0, 41, 125, 0.08);
	filter: blur(0.2px);
	transform: translateX(-120%);
}

.site-page-transition__sweep--1 {
	top: 38%;
}

.site-page-transition__sweep--2 {
	top: 50%;
	opacity: 0.18;
}

.site-page-transition__sweep--3 {
	top: 62%;
	opacity: 0.14;
}

.site-page-transition__sweep--4 {
	top: 46%;
	height: 4px;
	border-radius: 999px;
	background: linear-gradient(
		90deg,
		rgba(255, 255, 255, 0) 0%,
		rgba(255, 255, 255, 0.72) 50%,
		rgba(255, 255, 255, 0) 100%
	);
	opacity: 0.75;
}

body.is-page-transitioning .site-page-transition {
	visibility: visible;
	pointer-events: auto;
}

@media (prefers-reduced-motion: no-preference) {
	body.is-page-leaving .site-page-transition__logo {
		animation: site-page-transition-logo-in 0.52s cubic-bezier(0.22, 1, 0.36, 1) forwards;
	}

	body.is-page-leaving .site-page-transition__sweeps {
		animation: site-page-transition-sweeps-on 0.52s ease-out forwards;
	}

	body.is-page-leaving .site-page-transition__sweep--1 {
		animation: site-page-transition-sweep 0.52s ease-out 0.02s forwards;
	}

	body.is-page-leaving .site-page-transition__sweep--2 {
		animation: site-page-transition-sweep 0.52s ease-out 0.08s forwards;
	}

	body.is-page-leaving .site-page-transition__sweep--3 {
		animation: site-page-transition-sweep 0.52s ease-out 0.14s forwards;
	}

	body.is-page-leaving .site-page-transition__sweep--4 {
		animation: site-page-transition-sweep 0.52s ease-out 0.18s forwards;
	}

	body.is-page-entering .site-page-transition__logo {
		animation: site-page-transition-logo-out 0.42s ease-out forwards;
	}
}

@keyframes site-page-transition-logo-in {
	from {
		opacity: 0;
		transform: translate(-50%, -50%) scale(0.965);
	}
	to {
		opacity: 0.14;
		transform: translate(-50%, -50%) scale(1);
	}
}

@keyframes site-page-transition-logo-out {
	from {
		opacity: 0.14;
	}
	to {
		opacity: 0;
	}
}

@keyframes site-page-transition-sweeps-on {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}

@keyframes site-page-transition-sweep {
	0% {
		transform: translateX(-120%);
		opacity: 0;
	}
	30% {
		opacity: 1;
	}
	100% {
		transform: translateX(280%);
		opacity: 0;
	}
}

@media (prefers-reduced-motion: reduce) {
	body.is-page-leaving .site-page-transition,
	body.is-page-entering .site-page-transition {
		visibility: hidden;
		pointer-events: none;
	}
}