@charset "UTF-8";

html {
    scroll-padding-top: 100px;
    scroll-behavior: smooth;
}

* {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

body {
    font-family: "Poppins", sans-serif;
    font-weight: 400;
}

.container {
    width: 100%;
    position: relative;
}

header {
    min-height: 40px;
    position: sticky;
    background-color: whitesmoke;
    top: 0;
    left: 0;
    z-index: 100;
}

.navi {
    display: flex;
    list-style: none;
    justify-content: flex-end;
    align-content: center;
    align-items: center;
    padding: 3% 3% 0;
    gap: 3%;
}

.navi a:link, .navi a:active {
    color: black;
    text-decoration: none;
    font-size: 15px;
    font-family: "Inter", sans-serif;
}

.navi a:hover, .navi a:visited {
    color: silver;
    border-bottom: 1px solid rgba(208, 128, 21, 1.00);
    padding-bottom: 2%;
    transition: 0.2s ease;
}

h1 {
    font-family: "Inter", sans-serif;
    font-optical-sizing: auto;
    font-size: 150px;
    font-weight: 1000;
    padding: 2%;
    text-align: center;
    margin: 0;
    background-image: url("images/Background1.png");
    background-size: cover; /* 追加 */
    background-position: center; /* 追加 */
}

h2 {
    font-family: "Inter", sans-serif;
    font-optical-sizing: auto;
    font-weight: 700;
    font-size: 75px;
    padding: 2%;
    text-align: left;
}

h3 {
    font-family: "Inter", sans-serif;
    text-align: center;
    font-size: 35px;
}

h4 {
    font-family: "Inter", sans-serif;
    font-size: 15px;
}

h5 {
    font-family: "Inter", sans-serif;
    font-size: 20px;
}

.videos {
    background-color: dimgray;
    color: white;
}

.detail {
    text-align: center;
}

.music {
    background-color: gray;
    color: white;
}

.contact {
    background-color: black;
    color: white;
}

footer {
    text-align: center;
    color: rgba(23, 109, 192, 1.00);
    font-family: "Inter", sans-serif;
    background-color: whitesmoke;
}

@media only screen and (max-width: 1290px) {
    html {
        scroll-behavior: smooth;
        scroll-padding-top: 120px;
    }

    h1 {
        background-size: cover; /* 追加 */
        background-position: center; /* 追加 */
    }

    .btn_home {
        margin-top: block;
    }

    .videos {
        width: 100%;
        height: auto;
    }
}