/* ==================================================
 style.css
================================================== */
/* Reset css */
*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}
html {
	font-size: 62.5%;
	scroll-behavior: smooth;
	-webkit-text-size-adjust: 100%;
	overflow-x: hidden;
}
body,h1,h2,h3,p,ul,ol,figure {
	margin: 0;
}
ul,ol {
	list-style: none;
}
img {
	display: block;
	max-width: 100%;
	height: auto;
}
iframe {
	display: block;
	border: 0;
}
a {
	text-decoration: none;
	color: inherit;
}
/* Root */
:root {
	--color-header: #ff4200;
	--color-nav: #4d4d4d;
	--color-border:#808080;
	--color-black: #000;
	--color-white: #fff;
	
	--width-wide: 200rem;
	--width-small: 77.2rem;
	--width-iframe: 81.2rem;
	--width-banner: 50rem;
	
	--radius: 1rem;
	--radius-large: 1.5rem;
	
	--shadow-text:1px 1px 2px var(--color-black);
}
/* Base */
body {
	min-height: 100vh;
	line-height: 1.5;
	text-rendering: optimizeLegibility;
	font-family: "Hiragino Sans","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
	color: var(--color-black);
	font-feature-settings: "palt";
	background-color: var(--color-black);
}
body::before {
	content: "";
	position: fixed;
	inset: 0;
	/*背景画像は1200px × 2581pxにする必要があります。*/
	background: url("../img/back.jpg") no-repeat top center / 100% auto;
	background-color: var(--color-black);
	z-index: -1;
}
main {
	padding-top: 1rem;
	overflow: hidden;
}
/* Layout */
.container-wide {
	width: min(100%,var(--width-wide));
	margin-inline: auto;
}
.container-small {
	width:min(calc(100% - 2rem), var(--width-small));
	margin-inline: auto;
}
/* Header */
.header {
	position: sticky;
	top: 0;
	z-index: 1000;
}
.header__logo {
	display: block;
	background: var(--color-header);
	padding: 1rem;
}
.header__logo img {
	width: min(80%,40rem);
	margin-inline: auto;
}
.header__nav {
	background: var(--color-nav);
}
.header__menu {
	display: flex;
	justify-content: space-between;
	width: min(90%,60rem);
	margin-inline: auto;
}
.header__menu a {
	display: block;
	padding: .5em;
	color: var(--color-white);
	font-size: 1.44rem;
	line-height: normal;
}
/* Hero */
.hero__logo {
	width: min(100%, var(--width-wide));
	margin-inline:auto;
}
.hero__title {
	margin: 2rem 0;
	font-family: "M PLUS 1p",sans-serif;
	font-size: clamp(2.2rem, 1.2rem + 3vw, 4rem);
	font-weight: 800;
	line-height: 1.3;
	color: var(--color-black);
	text-align: center;
	filter:
    drop-shadow(0 0 2px var(--color-white))
    drop-shadow(0 0 4px var(--color-white))
    drop-shadow(0 0 6px var(--color-white))
    drop-shadow(0 0 8px rgba(255,255,255,.8));
}
.hero__text {
	width: 95%;
	margin: 0 auto;
	text-align: center;
	color: var(--color-white);
	font-size: clamp(1.6rem, 1.4rem + 0.7vw, 1.9rem);
	font-weight:300;
	text-shadow:var(--shadow-text);
}
.x-banner {
	display: block;
	width: min(100%, var(--width-banner));
	margin: 2rem auto;
}
/* Schedule */
.schedule {
	margin: 3rem auto;
}
.schedule__container {
	display: flex;
	justify-content: center;
	background: var(--color-white);
	border: 2px solid var(--color-border);
	border-radius:var(--radius);
}
.schedule__iframe {
	width: 100%;
	max-width: var(--width-iframe);
	height: 60rem;
	border-radius:var(--radius);
}
/* Links */
.links {
	margin-bottom: 3rem;
}
.links__link {
	display: block;
}
.decharepo-banner {
	width: min(100%, var(--width-banner));
	margin: 0 auto 3rem;
}
.dechau-logo-banner {
    width:100%;
}
.back-button {
	display: block;
	max-width:var(--width-small);
	margin: 0 auto;
	padding: 1rem 1rem 1.6rem;
	border-radius: var(--radius-large);
	background:var(--color-header);
}																																																						
/* Footer */
.footer {
	padding-bottom: 2rem;
}
.footer small {
	display: block;
	color: var(--color-white);
	text-shadow: var(--shadow-text);
	font-size: 1rem;
	text-align: center;
}
/* Animation */
.fadeInUp {
	opacity: 0;
	transform: translateY(20px);
	transition: opacity 1.2s ease,transform 1.2s ease;
}
.fadeInUp.isVisible {
	opacity: 1;
	transform: translateY(0);
}