body {
    display: block;
    margin: 0;
}

* {
    margin: 0;
    padding: 0;
}

.page {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: scroll;
}

.logo-menu-bg {
    position: relative;
    height: 100vh;
    width: 100%;
    background-size: auto auto;
}

.l-index {
    background-image: url(img/usachan_sensee_back.svg);
    background-size: auto 100vh;
    animation: bgscroll 300s linear infinite;
    height: 100vh;
    background-color: #ff9fb9;
    background-repeat: repeat;
}

@-webkit-keyframes bgscroll {
    0% {background-position: 0 0;}
    100% {background-position: 10000px 0vh;}
}

@keyframes bgscroll {
    0% {background-position: 0 0;}
    100% {background-position: 10000px 0vh;}
}

.logo {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 900px;
    width: 100%;
}

.menu-bg {
    position: absolute;
    top: 75%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 900px;
    width: 100%;
    text-align: center;
}

.menu ul li{
    padding-top: 10px;
    font-family: "ab-maruhanamaki", sans-serif;
    font-weight: 400;
    font-style: normal;
}

.menu li {
    display: inline-block;
    margin-right: 20px;
    font-size: 1.5em;
    color: #fff;
    text-align: center;
    font-size: 1rem;
    width: 120px;
}
.menu i {
    font-size: 3em;
    display: block;
    margin-bottom: 10px;
    text-shadow: 2px 2px 12px rgba(0, 0, 0, 0.5); /* Adding shadow */
}

.menu a {
    color: #fff;
    text-decoration: none;
    text-shadow: 1px 1px 12px rgba(0, 0, 0, 0.5); /* Adding shadow */
}

.menu a:hover, .menu a:active {
    color: #fa6767;
    transition: color 0.2s ease-in-out;
}

.main-bg {
    position: relative;
    height: 100vh;
    width: 100%;
    background-size: cover;
    background-image: url(img/back_2.jpg);
    background-repeat: no-repeat;
    background-position: center center;
}

.main {
    width: 100%;
    height: 100%;
}

.main h1 {
    font-size: 4em;
    color: #fff;
    text-align: center;
    padding-top: 70px;
    padding-bottom: 50px;
    font-family: "ab-maruhanamaki", sans-serif;
    font-weight: 400;
    font-style: normal;
    text-shadow: 2px 2px 12px rgba(0, 0, 0, 0.5); /* Adding shadow */
    -webkit-text-stroke: 1px #FFF;
    text-stroke: 1px #FFF;
    display: block;
}

.quote {
    position: absolute;
    width: 100%;
    display: block;
    padding-top: 10px;
    padding-bottom: 15px;
    background-color: rgba(0, 0, 0, 0.201);
    z-index: 1000;
}

.main p {
    font-size: 1.5em;
    color: #fff;
    text-align: center;
    font-family: "ab-maruhanamaki", sans-serif;
    padding-top: 10px;
    font-weight: 200;
    font-style: normal;
    text-shadow: 2px 2px 12px rgba(0, 0, 0, 0.5); /* Adding shadow */
    display: block;
}

.youtube-embed {
    position: absolute;
    width: 100%;
    height: 450px;
    bottom: 5%;
    text-align: center;
    padding-top: 5%;
    padding-bottom: 10px;
    display: flex;
    justify-content: center;
}

.youtube-embed iframe {
    width: 100%;
    height: calc(100vw * 0.5625);
    max-width: 800px;
    max-height: 450px;
    z-index: 100;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.top{
    position: absolute;
    bottom: 5%;
    right: 5%;
    z-index: 0;
}

.event-bg {
    position: relative;
    height: 100vh;
    width: 100%;
    background-size: cover;
    background-image: url(img/back_4.jpg);
    background-repeat: no-repeat;
    background-position: center center;
}

.gallery-box {
    position: absolute;
    width: 100%;
    height: 420px;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    bottom: 15vh;
}

.gallery {
    width: 100%;
    max-width: 1200px;
    height: 100%;
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 10;
}

.gallery img {
    width: 35%;
    height: auto;
    transform: rotate(-10deg) translateX(10%);
    transition: transform 0.3s ease-in-out;
    z-index:10;
}

.gallery img:nth-child(2) {
    transform: rotate(10deg) translateX(-15%);
}

.gallery img:nth-child(3) {
    transform: rotate(-10deg) translateX(-30%);
}

.music-bg {
    position: relative;
    height: 100vh;
    width: 100%;
    background-size: cover;
    background-image: url(img/back_1.jpg);
    background-repeat: no-repeat;
    background-position: center center;
}

.footer {
    padding-top: 10px;
    padding-bottom: 10px;
    width: 100vw;
    bottom: 0;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.others-bg {
    position: relative;
    height: 100vh;
    width: 100%;
    background-size: cover;
    background-image: url(img/back_3.jpg);
    background-repeat: no-repeat;
    background-position: center center;
}

.lists {
    position: absolute;
    width: 100%;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    font-family: "ab-maruhanamaki", sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 1rem;
    bottom: 0;
}

.lists ul li {
    color: #20006a;
    padding-top: 10px;
}

.lists ul li a {
    color: #20006a;
    text-decoration: none;
    text-shadow: 1px 1px 12px rgba(0, 0, 0, 0.5); /* Adding shadow */
}
.loading {
    /*ローディング画面の縦横幅を画面いっぱいになるように指定*/
    width: 100vw;
    height: 100vh;
    /*ローディング画面の表示位置を固定*/
    position: fixed;
    top: 0;
    left: 0;
    background: #ff9fb9a6;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 9999;
    backdrop-filter: blur(10px); /* Adding blur effect */
}

.loading-img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 400px;
    width: 100%;
    animation: updown 3s infinite alternate;
}

@keyframes updown {
    0%, 100% {
        transform: translate(-50%, -50%) translateY(0);
    }
    50% {
        transform: translate(-50%, -50%) translateY(15px);
    }
}