/* ==================================

    Reset - リセット

================================== */

* {
    margin: 0;
    padding: 0;
    border: 0;
    font-weight: normal;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}



/* ==================================

    Default - デフォルト

================================== */

html {
    font-size: 62.5%;
}

body {
    font-family: 
        "游ゴシック体", Yu Gothic, YuGothic, "メイリオ",
        "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", Meiryo,
        Osaka, "MS PGothic", sans-serif;
    color: #FFFFFF;
    background-color: #000000;
    background-image: url('../img/bg.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-position: center center;
    font-size: 1.5rem;
}

@media screen and (max-width: 768px) {
    body {
        background: none;
    }

    body::before {
        content: "";
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: url(../img/bg2.jpg) center/cover no-repeat;
        z-index: -1;
    }
}

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



/* ==================================

    Flex - フレックス

================================== */

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

.flex-center {
    display: flex;
    justify-content: center;
}

.flex-wrap {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}



/* ==================================

    Header - ヘッダー

================================== */

#headerArea {
    position: relative;
    height: 100vh;
}

#headerLogoBox {
    position: absolute;
    width: 25vw;
    transform: translate(calc(50vw - 50%),calc(50vh - 50%));
}

@media screen and (max-width: 768px) {
    #headerLogoBox {
        width: 60vw;
    }
}



/* ==================================

    H - 見出し

================================== */

h1,h2 {
    text-align: left;
    font-size: 2.8rem;
    line-height: 2.0;
}

h2 {
    padding-top: 48px;
}

h1:before,
h2:before {
    content: 'ー';
    padding-right: 8px;
}

h3 {
    text-align: left;
    font-size: 2.8rem;
    line-height: 2.0;
}

h3:before {
    content: 'ー';
    padding-right: 8px;
}

h4, h5 {
    text-align: center;
    font-size: 2.8rem;
    line-height: 2.0;
}

h4:before,
h5:before {
    content: 'ー';
    padding-right: 8px;
}

h4:after,
h5:after {
    content: 'ー';
    padding-left: 8px;
}

.lesson-area h4 {
    text-align: left;
    font-size: 2.8rem;
    line-height: 2.0;
    padding-top: 48px;
}

.lesson-area h4:before {
    content: 'ー';
    padding-right: 8px;
}

.lesson-area h4:after {
    content: '';
    padding-left: 0px;
}

@media screen and (max-width: 640px) {
    h1, h2, h3, h4, h5 {
        font-size: 2.0rem;
    }
}



/* ==================================

    About - Relationship.NIIGATAとは
    About - ブレイキンとは

================================== */

.about-area {
    background-color: rgba(0,0,0,0.8);
}

.about-box {
    max-width: 800px;
    margin: 32px auto;
    text-align: justify;
}

.about-text-box,
.about-text-box2 {
    max-width: 800px;
    padding: 32px;
    margin: 0 auto;
}

.about-text-box {
    border: double 10px #EBF2FA;
}

.about-text-box p,
.about-text-box2 p {
    font-size: 1.6rem;
    line-height: 1.8;
    letter-spacing: 0.08em;
}

.asterisk {
    padding-top: 8px;
}

@media screen and (max-width: 800px) {
    .about-box {
        width: calc(100% - 32px);
    }

    .about-text-box,
    .about-text-box2 {
        width: calc(100% - 16px);
    }
}

@media screen and (max-width: 640px) {
    .about-text-box {
        padding: 16px;
    }

    .about-text-box2 {
        padding: 8px;
    }

    .about-text-box p,
    .about-text-box2 p { 
        font-size: 1.5rem;
    }

    .asterisk {
        font-size: 1.5rem;
        padding: 8px 32px;
    }
}



/* ==================================

    Report - 活動実績

================================== */

.accordion-link,
.accordion-link-current-year {
    display: block;
    cursor: pointer;
    padding: 8px 0;
    line-height: 1.8;
    letter-spacing: 0.08em;
    transition: all .5s ease;
    text-align: left;
    font-weight: bold;
}

.accordion-link::after {
    content: '＋ 開く';
    padding-left: 8px;
}

/* closeというクラスがついたら形状変化 */
.accordion-link.close::after{
    content: '× 閉じる';
}

/* アコーディオンで現れるエリア */
.accordion-box {
    display: none;
    text-align: justify;
    line-height: 1.8;
    letter-spacing: 0.08em;
}

.accordion-box-current-year {
    text-align: justify;
    line-height: 1.8;
    letter-spacing: 0.1em;
}

.report-box {
    max-width: 800px;
    margin: 32px auto;
}

@media screen and (max-width: 800px) {
    .accordion-link,
    .accordion-link-current-year {
        font-weight: normal;
    }

    .report-box {
        width: calc(100% - 32px);
    }
}

@media screen and (max-width: 640px) {
    .report-box {
        width: calc(100% - 32px);
    }
}

.report-box ul {
    padding: 16px;
}

.report-box ul li {
    list-style: none;
    font-size: 1.6rem;
}

.report-box ul.b {
    border-bottom: 1px dotted #FFF;
}

.report-box ul li.d {
    font-size: 1.3rem;
}

.report-box ul li.d span {
    padding-left: 8px;
    color: #ff6347;
}

.report-box ul li.c {
    font-size: 1.6rem;
}

.report-box ul li.c a {
    color: #FFFFFF;
    transition: .4s;
}

.report-box ul li.c a:hover {
    color: #ff6347;
    transition: .4s;
}

@media screen and (max-width: 640px) {
    .report-box ul {
        padding: 8px;
    }

    .report-box ul li {
        font-size: 1.5rem;
    }

    .report-box ul li.d {
        font-size: 1.2rem;
    }

    .report-box ul li.c {
        font-size: 1.5rem;
    }
}



/* ==================================

    Member - メンバー

================================== */

.member-area {
    /*background-color: rgba(0,0,0,0.8);*/
}

.member-box {
    max-width: 1500px;
    margin: 48px auto;
    padding: 48px 0;
}

@media screen and (max-width: 1500px) {
    .member-box {
        width: calc(100% - 32px);
    }
}

@media screen and (max-width: 640px) {
    .member-box .flex-wrap {
        display: block;
    }
}

.no-text {
    text-align: center;
    padding: 32px;
}

.member-solo-box {
    width: calc(25% - 16px);
    margin: 0 8px 32px;
    background-color: rgba(0,0,0,0.5);
    display: block;
}

@media screen and (max-width: 640px) {
    .member-area .flex-wrap {
        display: block;
    }

    .member-solo-box {
        width: 100%;
        margin: 0 auto 48px;
    }
}

.prof-box {
    padding: 16px;
}

.name-text {
    font-size: 2.0rem;
    padding-bottom: 16px;
    text-align: center;
}

@media screen and (max-width: 640px) {
    .name-text {
        font-size: 2.4rem;
        text-align: left;
    }

    .prof-box {
        font-size: 1.5rem;
    }

    .no-text {
        font-size: 1.5rem;
    }
}



/* ==================================

    Lesson - レッスン一覧

================================== */

table.design1 {
    border-collapse: collapse;
    width: 100%;
}

table.design1 th,
table.design1 td {
    padding: 1rem 2rem;
    text-align: center;
    border-bottom: 1px solid #ddd;
    text-align: left;
}

table.design1 th:nth-child(1) {
    text-align: center;
}

table.design1 th {
    background: #000;
    font-weight: bold;
    position: sticky;
    top: 0;
}

table.design1 img {
    width: 80px;
    display: block;
    margin: 0 auto;
    margin-bottom: .5rem;
}

table.design1 td.inst-name {
    text-align: center;
}

.tp {
    display: inline-block;
    margin:  0 auto;
    text-align: left;
}

@media(max-width: 768px) {
    .heading {
        display: none;
    }
    table.design1 img {
        width: 150px;
    }
    td {
        display: block;
    }
    .inst-name {
        background: #222222;
    }
    table.design1 th,
    table.design1 td {
        padding: 2rem 2rem;
        text-align: center;
    }
}




.lesson-area {
    background-color: rgba(0,0,0,0.8);
}

.lesson-box {
    max-width: 1500px;
    margin: 48px auto;
    padding: 48px 0;
}

@media screen and (max-width: 1500px) {
    .lesson-box {
        width: calc(100% - 32px);
    }
}

@media screen and (max-width: 640px) {
    .lesson-box .flex-wrap {
        display: block;
    }
}

.lesson-area a {
    color: #FFFFFF;
    transition: .4s;
}

.lesson-area a:hover {
    color: #FF6347;
    transition: .4s;
}

.lesson-area ul {
    display: flex;
}

.lesson-area ul li {
    list-style: none;
}

.lesson-area ul li:nth-child(1) {
    width: 50px;
}

.lesson-area ul li:nth-child(2) {
    width: 100px;
}

.lesson-area ul li:nth-child(3) {
    width: 100px;
}

.design10 {
 width: 100%;
 text-align: center;
 border-collapse: collapse;
 border-spacing: 0;
}
.design10 th {
 padding: 10px;
 border-bottom: solid 4px #778ca3;
 color: #778ca3
}
.design10 td {
 padding: 10px;
 border-bottom: solid 1px #778ca3;
}



.no-text {
    text-align: center;
    padding: 32px;
}

.member-solo-box {
    width: calc(25% - 16px);
    margin: 0 8px 32px;
    background-color: rgba(0,0,0,0.5);
    display: block;
}

@media screen and (max-width: 640px) {
    .member-area .flex-wrap {
        display: block;
    }

    .member-solo-box {
        width: 100%;
        margin: 0 auto 48px;
    }
}

.prof-box {
    padding: 16px;
}

.name-text {
    font-size: 2.0rem;
    padding-bottom: 16px;
    text-align: center;
}

@media screen and (max-width: 640px) {
    .name-text {
        font-size: 2.4rem;
        text-align: left;
    }

    .prof-box {
        font-size: 1.5rem;
    }

    .no-text {
        font-size: 1.5rem;
    }
}



/* ==================================

    Sns - SNS

================================== */

.sns-area {
    margin: 0 auto 128px;
}

.sns-area i {
    font-size: 3.0rem;
    text-align: center;
}

.sns-area a {
    margin: 48px;
    color: #FFFFFF;
    transition: .4s;
}

.sns-area a:hover {
    color: #FF6347;
    transition: .4s;
}



/* ==================================

    Contact - お問い合わせ

================================== */

.contact-area {
    width: 100%;
    margin: 128px auto 64px;
    text-align: center;
}

.contact-text-box {
    text-align: center;
    padding: 48px;
}

.contact-text-box i {
    font-size: 3.0rem;
}

.contact-text-box p {
    font-size: 2.4rem;
    padding-top: 8px;
}

.contact-text-box a {
    color: #FFFFFF;
    transition: .4s;
}

.contact-text-box a:hover {
    color: #FF6347;
    transition: .4s;
}

@media screen and (max-width: 640px) {
    .contact-text-box p {
        font-size: 1.8rem;
    }
}



/* ==================================

  Footer -　フッター

================================== */

.cr {
    text-align: center;
    font-size: 1.4rem;
    padding: 128px 0 32px 0;
}