@charset "utf-8";




/* ページトップ
-----------------------------*/

.mainvisual {
    position: relative;
    overflow: hidden;
    height: 100dvh;
}

.header-color {
    height: 100%;
}

.img-bird1 {
    position: absolute;
    top: 110px;
    left: 0;
    width: fit-content;
    max-width: 66%;
    height: auto;
}

.img-bird2 {
    position: absolute;
    top: 110px;
    left: 50%;
    width: 200px;
    height: auto;
}

.img-mt {
    position: absolute;
    bottom: 0;
    left: 60px;
    width: 50%;
    height: auto;
}

.copy {
    position: absolute;
    right: max(8%, 100px);
    bottom: 60px;
    font-size: min(calc(100vw / 11.6 ), 2.5rem);
    font-weight: 600;
    line-height: 2;
    letter-spacing: .2em;
}

.scroll {
    position: absolute;
    top: 85%;
    left: 20px;
    display: flex;
    align-items: center;
    font-weight: 600;
    letter-spacing: 2px;
    writing-mode: vertical-rl;
}

.scroll:after {
    content: "";
    z-index: 0;
    width: 2px;
    height: 250px;
    margin-top: 10px;
    background-color: #777;
}


/*-----------------------------*/

.consept {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 180px 0 100px;
}


.consept-text {
    margin: 40px 0;
    font-size: min(calc(60vw / 11.6 ) , 1.3rem);
    letter-spacing: .15em;
    text-align: center;
}

.logo {
    width: min(60%, 240px);
}

.consept-bird {
    width: min(60%, 320px);
    margin: 40px 0;
}

/*-----------------------------*/

.index-container {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    aspect-ratio: 1 / 1.95;
    margin: 0 20px;
    padding: 0;
    background-image: url(../img/svg/img-bg2.svg);
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center center;
}


.index-item {
    width: min(30%, 300px);
    margin: 0 2% 0 5%;
}

.index-item:nth-of-type(2), .index-item:nth-of-type(4){
    align-self: flex-end;
}



.index-title {
    margin-bottom: 50px;
    font-size: min(calc(25vw / 11.6), 1rem);
    letter-spacing: .1em;

}

.index-title span {
    display: block;
    font-size: min(calc(60vw / 11.6), 3.5rem);
    line-height: normal;
    letter-spacing: .1em;

}



/* 楕円リンクボタン */

.link-btn a::after {
    background-image: url(../img/svg/allow1.svg);
}


.btn-purple a {
    background: linear-gradient(90deg, #CEC8EF, #C1E5F5, #CEC8EF ) 100% / 200%;
}

.btn-yellow a {
    background: linear-gradient(90deg, #FFFFA0, #C1E5F5, #FFFFA0 ) 100% /200%; 
}

.btn-green a {
    background: linear-gradient(90deg,  #CDFFDA, #C1E5F5, #CDFFDA ) 100% / 200%; 
}




@media screen and (max-width: 767px) {



.img-bird1 {
    top: 0;
    right: -20%;
    left: unset;
    width: 100%;
    max-width: unset;
    height: 70%;
}

.img-bird2 {
    top: 35%;
    left: 0;
    width: 30%;
}

.img-mt {
    left: -50%;
    z-index: 10;
    width: fit-content;
    max-height: 55px;
}

.copy {
    right: 8%;
    bottom: 40px;
}


.scroll {
    top: unset;
    bottom: -160px;
}

.scroll:after {
    margin-top: 60px;
    height: 160px;
}


/*-----------------------------*/


.consept {
    margin: 100px 0 50px;
}

.consept-text {
    margin: 40px 0 10px;
}

.consept-bird {
    margin: 20px 0;
}


/*-----------------------------*/

.index-container { 
    gap: 5%;
    background-image: none;
}



.index-item {
    width: 100%;
    max-width: 550px;
    height: fit-content;
    margin: 0 auto;
}

.index-item:nth-of-type(2), .index-item:nth-of-type(4) {
    align-self: unset;
}




.index-img {
    height: calc(200vw / 3.9);
    margin: 0 auto;
}

.index-text {
    width: 100%;
    padding: 10% 0;
}


.index-title {
    margin-bottom: 10px;
    font-size: min(calc(21vw / 3.9), 1rem);
}

.index-title span {
    font-size: min(calc(60vw / 3.9), 4rem);
}



/* 楕円リンクボタン */

.link-btn a {
    max-width: 100%;
}

}