/* index.html */
@import url("https://fonts.googleapis.com/css2?family=Orbitron:wght@700&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Oswald&display=swap");

#wrapper,
#container {
	position: relative;
}
#top-title {
	position: fixed;
	display: block;
	z-index: 2;
	color: #fff;
	opacity: 0.5;
	text-align: center;
	top: 48%;
	left: 50%;
	-webkit-transform: translate(-45%, -45%);
	transform: translate(-45%, -45%);
	font-family: Orbitron;
	font-size: 7.2vw;
}
#top-back-images {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
}
#top-back-images div img {
	width: 100%;
	height: auto;
}
@media (max-width: 639px) {
	#top-back-images div img {
		min-width: 100%;
		width: auto;
		height: 100vh;
		object-fit: cover;
		object-position: center;
	}
}
#top-back-images .photo-credit {
	position: absolute;
	z-index: 2;
	left: 1rem;
	bottom: 2.8rem;
	font-size: 0.76rem;
	color: #fff;
}
#top-back-images .photo-credit a {
	color: #fff;
}

/* ハンバーガーメニュー */
#wrapper nav {
	position: fixed;
	top: 0;
	right: -240px;
	width: 240px;
	height: 100%;
	padding-top: 50px;
	background: rgba(0, 0, 0, 0.7);
	font-size: 16px;
	box-sizing: border-box;
	z-index: 3;
}

#wrapper nav ul li {
	padding: 20px 28px;
}

#wrapper nav ul li a {
	text-decoration: none;
	color: #c5c5c5;
	font-family: "Oswald", sans-serif;
	font-optical-sizing: auto;
	font-weight: 400;
	font-style: normal;
	-webkit-transition: all 400ms;
	transition: all 400ms;
}
#wrapper nav ul li a:hover {
	color: #fff;
	-webkit-transition: all 400ms;
	transition: all 400ms;
}

#wrapper .btn-gnavi {
	position: fixed;
	top: 20px;
	right: 20px;
	width: 30px;
	height: 24px;
	z-index: 4;
	box-sizing: border-box;
	cursor: pointer;
	-webkit-transition: all 400ms;
	transition: all 400ms;
}

#wrapper .btn-gnavi span {
	position: absolute;
	width: 30px;
	height: 4px;
	background: #c3c3c3;
	border-radius: 10px;
	-webkit-transition: all 400ms;
	transition: all 400ms;
}

#wrapper .btn-gnavi span:nth-child(1) {
	top: 0;
}

#wrapper .btn-gnavi span:nth-child(2) {
	top: 10px;
}

#wrapper .btn-gnavi span:nth-child(3) {
	top: 20px;
}

#wrapper .btn-gnavi.open {
	-webkit-transform: rotate(180deg);
	transform: rotate(180deg);
}

#wrapper .btn-gnavi.open span {
	background: #f3f3f3;
}

#wrapper .btn-gnavi.open span:nth-child(1) {
	width: 24px;
	-webkit-transform: translate(-7px, 17px) rotate(45deg);
	transform: translate(-7px, 17px) rotate(45deg);
}

#wrapper .btn-gnavi.open span:nth-child(3) {
	width: 24px;
	-webkit-transform: translate(-7px, -17px) rotate(-45deg);
	transform: translate(-7px, -17px) rotate(-45deg);
}
/* ENd ハンバーガーメニュー */

/* フッター */
.site-footer {
	position: fixed;
	bottom: 0;
	left: 0;
	right: 0;
	background-color: rgba(0, 0, 0, 0.7);
	backdrop-filter: blur(5px);
	z-index: 10;
}

.footer-content {
	text-align: center;
	padding: 10px 20px;
}

.footer-content p {
	margin: 0;
	color: #fff;
	font-size: 12px;
	font-family: "Oswald", sans-serif;
	opacity: 0.8;
}