html,
::before,
::after {
    border: 0;
    outline: 0;
}

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

body {
    background-color: rgb(23, 23, 23);
    margin: 0;
    padding: 0;
    font-family: "Yu Gothic", "游ゴシック", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
    color: #ffffff;
    font-size: 15px;
    letter-spacing: 0.1rem;
    text-shadow: rgb(0, 0, 0) 1px 0 10px;
}

a {
    text-decoration: none;
    color: #ffffff;

    &:hover {
        opacity: 0.8;
    }

    &:active {
        opacity: 0.5;
    }
}

.button {
    cursor: pointer;
    transition: all 0.3s ease;

    &:hover {
        opacity: 0.8;
    }

    &:active {
        opacity: 0.5;
    }
}

img {
    width: 100%;
    height: auto;
}

li {
    list-style-type: none;
}

/* ヘッダー */
.header {
    background-color: #1f353f;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    width: 100%;
    height: 70px;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header_logo {
    text-align: left;
    height: 100%;
    display: flex;
    align-items: center;

    img {
        width: 200px;
        height: auto;
        float: left;
        margin: auto 0;
    }
}

#hamburger_button {
    position: fixed;
    margin: auto 20px;
    right: 0;
    width: 40px;
    height: 40px;
    z-index: 9999;
}

.hamburger_line {
    width: 50%;
    height: 2px;
    background-color: #fff;
    display: block;
    margin: 20px auto;
    position: relative;

    &::before,
    &::after {
        content: '';
        width: 100%;
        height: 2px;
        background-color: #fff;
        display: block;
        position: absolute;
    }

    &::before {
        top: -6px;
    }

    &::after {
        top: 6px;
    }
}

#hamburger_checkbox {
    display: none;
}



/* スマホ用メニュー*/
.nav_menu {
    background-color: #1f353f;
    position: fixed;
    top: 70px;
    right: -100%;
    width: 100%;
    height: 100%;
    transform: translateX(0);
    transition: transform 0.5s ease;
    z-index: 9999;
    pointer-events: none;
    text-shadow: none;
}

.nav_list {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 80%;
    margin: auto;

    li {
        border-bottom: 1px solid #ffffff;
        text-align: center;
        padding: 25px 0;
        font-family: "Roboto Condensed", sans-serif;
        font-size: 1.2rem;
        font-weight: 400;

        &:last-of-type {
            border-bottom: none;
        }
    }
}


/* ハンバーガーボタン */
#hamburger_checkbox:checked~.nav_menu {
    transform: translateX(-100%);
    pointer-events: auto;
}

#hamburger_checkbox:checked~#hamburger_button .hamburger_line {
    background-color: transparent;
    transition: background-color 0.5s ease;
}

#hamburger_checkbox:checked~#hamburger_button .hamburger_line::before {
    top: 0;
    transform: rotate(45deg);
    transition: top 0.5s ease, transform 0.5s ease;
}

#hamburger_checkbox:checked~#hamburger_button .hamburger_line::after {
    top: 0;
    transform: rotate(-45deg);
    transition: top 0.5s ease, transform 0.5s ease;
}

#hamburger_checkbox:checked~#hamburger_button {
    background-color: rgba(69, 69, 69, 0);
    border-radius: 50%;
    transition: background-color 0.5s ease;
}




/* スライド画像 */

.slide-wrapper {
    display: block;
    margin: 70px auto 0 auto;
    padding-bottom: 40px;
    width: 100%;
    max-width: 800px;
    height: auto;
    position: relative;
    overflow: hidden;
}

.slide {
    width: 400%;
    height: 100%;
    display: flex;
    transition: all 0.8s;

    div {
        width: 25%;
        height: 100%;
        display: flex;
        text-align: center;
        justify-content: center;
        align-items: center;
        margin: auto 0;
    }

    img {
        width: 100%;
        height: auto;
    }
}

.slide1 {
    transform: translateX(0);
}

.slide2 {
    transform: translateX(-25%);
}

.slide3 {
    transform: translateX(-50%);
}

.slide4 {
    transform: translateX(-75%);
}


/* 左右のボタン */
.next {
    position: absolute;
    width: 15px;
    height: 15px;
    right: 10px;
    bottom: 50%;
    z-index: 10;
    cursor: pointer;
    border-top: solid 3px #ffffff;
    border-right: solid 3px #ffffff;
    -webkit-transform: rotate(45deg) translateY(50%);
    transform: rotate(45deg) translateY(50%);
}

.prev {
    position: absolute;
    width: 15px;
    height: 15px;
    left: 25px;
    bottom: 50%;
    z-index: 10;
    cursor: pointer;
    border-top: solid 3px #ffffff;
    border-right: solid 3px #ffffff;
    -webkit-transform: rotate(-135deg) translateY(-50%);
    transform: rotate(-135deg) translateY(-50%);
}

/* インジケーター */
.indicator {
    margin: 0 auto;
    width: 100%;
    position: absolute;
    bottom: 0px;
    display: flex;
    column-gap: 18px;
    z-index: 50;
    justify-content: center;
    align-items: center;

    li {
        list-style: none;
        width: 12px;
        height: 12px;
        border-radius: 50%;
        list-style: none;
        background-color: #7e7e7e;
        cursor: pointer;
    }

    li:first-of-type {
        background-color: #ffffff;
    }

}




/* メインコンテンツ */

.new_section,
.release_section,
.live_section,
.music_section,
.movie_section {
    margin: 0 auto;
    padding: 10px 20px 50px 20px;
    box-shadow: none;
    max-width: 800px;
}

h1 {
    display: block;
    font-family: "Roboto Condensed", sans-serif;
    font-size: 1.7rem;
    font-weight: 500;
    margin: 20px 0;
}


hr {
    width: 100%;
    border: #ffffff solid 1px;
}


/* カード */
.parent {
    text-align: center;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.card {
    width: 100%;
    display: flex;
    flex-direction: row;
    text-shadow: none;
    position: relative;
    padding: 20px 0;
}

.card_img {
    display: flex;
    flex-direction: column;
    width: 45%;
}

.card_text {
    margin: 0 10px;
    text-align: left;
    width: 55%;

    span {
        display: block;
    }
}

.card_time {
    position: absolute;
    font-size: 0.8rem;
    bottom: 20px;
    right: 0;
}

.release_date{
    font-size: 0.8rem;
}

.release_caption{
    font-size: 0.6rem;
    color: #cecece;
}

.release_title,
.live_title {
    font-size: 1.2rem;
}

.release_number {
    font-size: 0.6rem;
    color: #cecece;
}





/* フッター */
.footer {
    background-color: #1f353f;
    padding: 20px;
    text-align: center;
    justify-content: center;

    .footer_content {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    h2 {
        text-align: center;
        margin: auto 0;
    }

    .footer_sns {
        display: flex;
        /* フレックスボックスを有効化 */
        align-items: center;
        /* 縦方向の中央揃え */

        img {
            width: 23px;
            height: auto;
            margin: 15px 10px;
        }

    }

    .footer_bottom {
        margin-top: 20px;
        font-size: 0.7rem;
        text-align: center;
    }

}









/* PC用の表示 */

@media (width >=768px) {

    body {
        font-size: 1.1rem;
    }

    #hamburger_button {
        display: none;
    }

    .nav_menu {
        position: static;
        pointer-events: auto;
        width: auto;
        display: flex;
        align-items: center;
    }

    .nav_list {
        flex-direction: row;
        height: auto;
        width: auto;

        li {
            border-bottom: none;
            border-right: 1px solid #ffffff;
            border-left: none;
            float: left;
            padding: 5px 10px;
            font-size: 0.85rem;
            letter-spacing: 0.1rem;
            white-space: nowrap;

            &:last-of-type {
                border-right: none;
            }
        }
    }

    h1 {
        font-size: 1.9rem;
        letter-spacing: 0.3rem;
    }

    p {
        text-align: center;
    }

    .pc_left_p {
        text-align: left;
    }


}