@charset "UTF-8";

/* 基本 */
body {
    font-family: 'Noto Sans JP', sans-serif;
}

.container {
	width: 84%;
	margin: 0 auto;
}

@media (min-width: 900px) {
	.container {
		width: 91%;
		max-width: 1240px;
	}
}

/* リセット / ノーマライズ / サニタイズ */
body, h1, h2, h3, h4, h5, h6, p, ul, figure {
	margin: 0;
	padding: 0;
}

a {
	color: inherit;
	text-decoration: none;
}

a:hover {
	opacity: 0.8;
}

.sr-only {
	border: 0; 
	clip: rect(0 0 0 0); 
	height: 1px; 
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute;
	width: 1px;
}


/* ヘッダー */
.header .container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 74px;
}

@media (min-width: 900px) {
	.header .container {
		height: 100px;
	}
}

/* ヘッダー：サイト名 */
.site {
	display: flex;
	align-items: center;
}

.site img {
	width: 42px;
	margin-right: 10px;
}

.site .corp {
	color: #333333;
	font-size: 12px;
	font-weight: 900;
	line-height: 1.4;
}

.site .desc {
	color: #707F89;
	font-size: 10px;
	line-height: 1.4;
}

@media(min-width: 900px) {
	.site img {
		width: 59px;
		margin-right: 18px;
	}

	.site .corp {
		font-size: 20px;
	}

	.site .desc {
		font-size: 12px;
	}
}

/* ナビゲーションボタン */
.nav-button {
	box-sizing: content-box;
	padding: 0;
	outline: none;
	border: none;
	background: none;
	width: 20px;
	height: 14px;
	cursor: pointer;
	color: #2E5180;
}

.nav-button::before,
.nav-button::after {
	content: '';
	display: block;
	height: 2px;
	background-color: currentColor;
	transform: translateY(5px);
	transition: 0.3s ease-in-out;
}

.nav-button::before {
	transform: translateY(-5px);
	box-shadow: 0 6px currentColor;
}

/* ナビゲーションボタン（閉じるボタン） */
.open .nav-button {
	z-index: 1000;
	color: #ffffff;
}

.open .nav-button::before {
	transform: translateY(1px) rotate(45deg);
	box-shadow: none;
}

.open .nav-button::after {
	transform: translateY(-1px) rotate(-45deg);
}

/* ナビゲーションメニュー: モバイル */
@media (max-width: 899px) {
	html.open, .open body {
		height: 100%;
		overflow: hidden;
	}

	.open .form {
		display: none;
	}

	.open nav {
		left: 0;
	}

	html, body {
		overflow-x: hidden;
	}

	.header {
		position: relative;
	}

	.nav {
		position: absolute;
		top: 0;
		left: 100%;
		width: 100%;
		height: 100vh;
		background: rgba(0,0,0,0.8);
		color: #ffffff;
		display: flex;
		justify-content: center;
		align-items: center;
		transition: left 0.5s;
	}

	.nav ul {
		list-style: none;
		font-weight: bold;
		text-align: center;
	}

	.nav li:not(:last-child) {
		margin-bottom: 40px;
	}

	.nav .btn {
		color: inherit;
	}
}

/* ナビゲーションメニュー： PC */
@media (min-width: 900px) {
	.nav-button {
		display: none;
	}

	.nav ul {
		display: flex;
		align-items: center;
		list-style: none;
		color: #333333;
	}

	.nav li:not(:last-child) {
		margin-right: 23px;
	}

	.nav .btn {
		width: 148px;
		border-color: #CDD6DD;
	}
}

/* ヒーロー */
.hero {
	height: 400px;
	background-image: url(img/hero.jpg);
	background-position: center;
	background-size: cover;
	display: flex;
}

.hero .catch {
	flex: auto;
	align-self: flex-end;
	padding: 33px 0;
	background-color: rgba(255,255,255,0.76);
}

.hero .container {
	display: flex;
	flex-direction: column-reverse;
	align-items: center;
	line-height: 1.3;
}

.hero img {
	max-width: 100%;
	height: auto;
	vertical-align: bottom;
}

.hero p {
	font-size: 14px;
	color: #2E5180;
	margin-bottom: 15px;
}

@media (min-width: 900px) {
	.hero {
		height: 700px;
	}

	.hero .catch {
		padding: 47px 0 44px;
	}

	.hero p {
		font-size: 16px;
		margin-bottom: 22px;
	}
}

/* ヒーロー：IE対応 */
@media (-ms-high-contrast: none), not all and (-ms-high-contrast: none) { 
	.hero img {
		width: calc( (100vw - 17px) * 0.84 );
		max-width: 637.78px;
	}
}


/* メッセージ */
.message {
	padding: 67px 0;
	background-color: #2E5180;
	color: #ffffff;
}

.message h2 {
	margin-bottom: 38px;
	font-size: 24px;
	line-height: 1.67;
	text-align: center;
}

.message p {
	max-width: 640px;
	margin: auto;
	font-size: 14px;
	line-height: 1.86;
}

@media (min-width: 900px) {
	.message {
		padding: 81px 0;
	}

	.message h2 {
		font-size: 36px;
		line-height: 1.33;
	}
}

@media (max-width: 374px) {
	.message h2 {
		font-size: 20px;
	}
}


/* サービス */
.service {
	padding: 67px 0;
	text-align: center;
}

.service h2 {
	display: inline-block;
	margin-bottom: 16px;
	padding-bottom: 9px;
	border-bottom: dotted 2px currentColor;
	font-size: 24px;
	color: #2E5180;
}

.service h2 + p {
	color: #2E5180;
	font-size: 16px;
}

@media (min-width: 900px) {
	.service {
		padding: 95px 0 87px;
	}

	.service h2 {
		font-size: 36px;
	}
}


/* サービス： サービスの詳細 */
.details {
	margin-top: 53px;
	color: #333333;
}

.detail:not(:last-child) {
	margin-bottom: 67px;
}

.detail h3 {
	margin-bottom: 17px;
	font-size: 20px;
	line-height: 1.75;
}

.detail p {
	max-width: 264px;
	margin: 0 auto 25px;
	font-size: 12px;
	line-height: 2;
}

.detail figure {
	height: 246px;
	margin-bottom: 22px;
	background-position: center;
	background-size: cover;
}
.detail.office figure {
	background-image: url(img/office.jpg);
}
.detail.manage figure {
	background-image: url(img/manage.jpg);
}
.detail.research figure {
	background-image: url(img/research.jpg);
}

@media (min-width: 900px) {
	.details {
		display: flex;
		margin-top: 75px;
	}

	.detail {
		flex: 1;
		margin-right: 3.22%;
	}

	.detail:first-child {
		margin-left: 3.22%;
	}

	.detail:not(:last-child) {
		margin-bottom: 0;
	}

	.detail h3 {
		margin-bottom: 26px;
		font-size: 30px;
		line-height: 1.4;
	}

	.detail p {
		width: 78%;
		max-width: none;
	}

	.detail figure {
		height: 360px;
		margin-bottom: 33px;
	}

	/* ボタンの位置を揃える */
	.detail {
		display: flex;
		flex-direction: column;
	}

	.detail .btn {
		margin-top: auto;
	}
}

/* ボタン */
.btn {
	display: block;
	width: 208px;
	margin: 0 auto;
	padding: 11px 11px 13px;
	box-sizing: border-box;
	border: solid 2px currentColor;
	border-radius: 24px;
	color: #2E5180;
	font-size: 16px;
	font-weight: bold;
	text-align: center;
}

/* お問い合わせ */
.contact {
	padding: 62px 0;
	background-color: #EEF4F8;
	color: #333333;
}

.contact h2 {
	margin-bottom: 42px;
	font-size: 24px;
}

.contact h2 + p {
	font-size: 12px;
	line-height: 2.17;
}

@media (min-width: 900px) {
	.contact {
		padding: 0;
		background: none;
	}

	.contact .container {
		display: flex;
		justify-content: space-between;
		padding: 96px 9% 62px;
		box-sizing: border-box;
		background-color: #EEF4F8;
	}

	.contact .text {
		flex: 0 0 auto;
	}

	.contact .form {
		flex: 1 1 auto;
		max-width: 457px;
		margin-left: 1em;
		margin-top: 0;
	}

	.contact h2 {
		font-size: 36px;
	}

	.contact h2 + p {
		font-size: 14px;
		line-height: 1.86;
	}
}

/* お問い合わせ：フォーム */
.form {
	margin-top: 46px;
}

.form input[type="text"],
.form input[type="email"],
.form textarea {
	width: 100%;
	margin-bottom: 17px;
	padding: 12px 20px 14px;
	border: solid 1px #CDD6DD;
	box-sizing: border-box;
	border-radius: 0;
	-webkit-appearance: none;
	color: #333333;
	font-family: 'Noto Sans JP', sans-serif;
	font-size: 16px;
}

.form ::placeholder {
	color: #CDD6DD;
	opacity: 1;
}

.form input:-ms-input-placeholder,
.form textarea:-ms-input-placeholder {
	color: #CDD6DD;
}

.form ::-ms-input-placeholder {
	color: #CDD6DD;
}

.form textarea {
	height: 150px;
}

.form .btn {
	width: 100%;
	margin: 0;
	border: none;
	background-color: #2E5180;
	color: #ffffff;
	cursor: pointer;
	-webkit-appearance: none;
}

@media (min-width: 900px) {
	.form .btn {
		width: 272px;
	}
}


/* フッター */
.footer {
	padding: 38px 0 56px;
	background-color: #2E5180;
}

.footer .site img {
	width: 47px;
	margin-right: 14px;
}

.footer .site .corp {
	color: #ffffff;
	font-size: 16px;
}

.footer .add {
	margin: 20px 0 36px 61px;
	color: #ffffff;
	font-size: 12px;
	line-height: 2;
}

.footer .sns {
	display: flex;
	margin-left: 61px;
	list-style: none;
}

.footer .sns li:not(:first-child) {
	margin-left: 25px;
}

.footer .sns img {
	width: 35px;
}


@media (min-width: 900px) {
	.footer {
		margin-top: -48px;
		padding: 105px 0 88px;
		position: relative;
		z-index: -1;
	}

	.footer .container {
		display: flex;
		justify-content: space-between;
	}

	.footer .site img {
		width: 59px;
		margin-right: 18px;
	}
	
	.footer .site .corp {
		font-size: 20px;
	}

	.footer .add {
		margin: 22px 0 0 77px;
	}

	.footer .sns {
		height: 59px;
		align-items: center;
	}
}

/* フェードイン */
body {
	animation: fade 5s;
}
 
@keyframes fade {
	0% {
		opacity: 0;
	}
	100% {
		opacity: 1;
	}
}