@charset "UTF-8";

/* ============================================
# common
============================================ */
:root {
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-emerald: #57AFC1;
    --color-blue: #5E78BD;
    --color-brown: #D9D9D9;
    --color-lightBlue: #C4CEE8;
    --color-green: #62C376;
    --color-whiteblue: #E5F3F7;
    --color-whitelow: #F2FBFD;
    --color-gray: #DCE4E6;
    --color-darkGray: #828181;
    --contentpadding: 5.3%;
    --contentpadding__PC: 10%;

}

html {
    font-size: 62.5%;
}

body {
    font-family: 
        'Noto Sans JP', 
        'Poppins';
    font-style: normal;
    color: var(--color-black);
    background-color: var(--color-white);
    line-height: normal;
}

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

.top {
    margin-top: 64px;
}

.topic__group {
    background-color: var(--color-whiteblue);
    padding: 40px var(--contentpadding) 40px;
}   

.topic {
    font-family: Poppins;
    font-size: 4rem;
    font-weight: 600;
    line-height: 1; /* 100% */
    letter-spacing: 0.03em;
}

.subtopic {
    font-size: 1.6rem;
    font-weight: 600;
}

.topic__txt {
    margin-top: 28px;
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 2; /* 200% */
    text-align: start;
}

.topic__group--center {
    text-align: center;
} 

.topic__txt--center {
    line-height: 1.75;
    padding: 0 var(--contentpadding);
}

.btn--wrapper {
    margin-top: 40px;
}

.btn {
    width: 250px;
    height: 50px;
    padding-left: 28px;
    display: flex;
    color: var(--color-white);
    font-family: "Noto Sans JP";
    justify-content: center;
    align-items: center;
    font-size: 1.4rem;
    font-weight: 600;
    background: var(--color-emerald);
    border-radius: 25px;
    position: relative;
}

.btn::before {
    content: '';
    display: inline-block;
    width: 18px;
    height: 18px;
    background-image: url(../images/btn-white.svg);
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    position: absolute;
    left: 10%;
    top: 52%;
    transform: translateY(-50%);
}

.btn:hover {
    opacity: 0.5;
}

/* pcのみ改行 */
.pc-only {
    display: none;
}
  


/* common pc */
@media screen and (min-width:769px) {
    .top {
        margin-top: 100px;
    }
    
    .topic {
        font-size: 9rem;
    }

    .subtopic {
        margin-top: 2px;
        font-size: 2rem;
    }

    .topic__txt {
        margin-top: 40px;
        font-size: 1.8rem;
    }

    .topic__txt--center {
        text-align: center;
    }

    .topic__group {
    padding: 80px var(--contentpadding__PC);
    }


    .btn--wrapper {
        margin-top: 0;
    }

    .btn {
        background-color: var(--color-blue);
        font-size: 1.6rem;
    }

    .btn::before {
        width: 20px;
        height: 20px;
        left: 8%;
    }

    /* pcのみ改行 */
    .pc-only {
        display: block;
    }
}
/* pc 769px */

/*====================================
header
=====================================*/
.header {
    background-color: rgba(255, 255, 255, 0.97);
    position: fixed;   /* 固定表示 */
    top: 0;            /* 画面上部に配置 */
    left: 0;           /* 画面左端に配置 */
    width: 100%;       /* 横幅を100%に */
    z-index: 1000;     /* 他の要素より前面に表示 */
    padding-left: var(--contentpadding);
    height: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__topic {
    font-size: 1.4rem;
    font-weight: 700;
}


/* nav初期表示 */
.nav {
    background-color: rgba(196, 206, 232, 0.97); /* 97%透過 */
    width: 100%;
    height: 100%;
    padding-left:10%;
    position: fixed;
    top: 0;
    left: 0;
    transform: translateX(100%);
    transition: 0.4s;
    z-index: 100;
}

.nav__btn--wrapper {
    display: flex;
    justify-content: flex-end;
}

.nav__item {
   margin-top: 35px;
}

.nav__item:first-child {
    margin-top: 0;
}

.nav__title {
    color: var(--color-white);
    font-family: "Poppins";
    font-size: 2.8rem;
    font-style: normal;
    font-weight: 600;
    line-height: 1;
}

.nav__subtitle {
    font-size: 1.6rem;
    font-weight: 500;
    line-height: 1;
}

.nav__topic {
    font-size: 2rem;
    font-style: normal;
    font-weight: 600;
    line-height: normal;
    margin-top: 50px;
}

/* .nav.active表示 */
.nav.active {
    transform: translateX(0);
}



/* common pc */
@media screen and (min-width:769px) {
    .header {
        padding: 0 var(--contentpadding);
        height: 100px;
    }

    .header__topic {
        font-size: 2.4rem;
    }

    .header__btn {
        display: none;
    }

    .nav {
        display: flex;
        gap: 32px;
        justify-content: center;
        align-items: center;
        background: transparent;
        width: auto;
        height: auto;
        padding: 0;
        position: static;
        transform: translate(0);
    }

    .nav__btn--wrapper {
        display: none;
    }

    .nav__list {
        display: flex;
        gap: 32px;
        justify-content: space-between;
    }

    .nav__item {
        margin-top: 0;
    }
    
    .nav__title {
        display: none;
    }

    .nav__subtitle {
        font-size: 1.6rem;
        font-weight: 600;
    }

    .nav__topic {
        display: none;
    }
}/* pc 769px */

@media screen and (min-width:769px) and (max-width:1200px) {
    .header__topic {
        font-size: 1.6rem;
    }

    .nav__subtitle {
        font-size: 1.4rem;
    }
}


/*====================================
Contact
=====================================*/
.topic__group--contact, .topic__txt--contact {
    display: none;
}

.btn--contact--wrapper {
    display: flex;
    position: fixed;   /* 固定表示 */
    bottom: 0;            /* 画面上部に配置 */
    left: 0;           /* 画面左端に配置 */
    width: 100%;       /* 横幅を100%に */
    z-index: 50;     /* 他の要素より前面に表示(navよりは下) */
}

.btn--contact {
    color: var(--color-white);
    background-color: var(--color-blue);
    border-radius: 0 25px 0 0;
}

/* common pc */

@media screen and (min-width:769px) {
    .section--contact-area {
        position: relative;
    }

    .section--contact {
        display: flex;
        flex-direction: column;
        align-items: flex-end; /* 子要素を右寄せ */
        padding: 140px var(--contentpadding__PC) 140px 0;
        background-color: var(--color-emerald);
        z-index: 1;
    }

    .topic__group--contact {
        display: block;
    }

    .topic__txt--contact {
        display: block;
    }

    .topic__contact, .subtopic__contact {
        color: var(--color-white);
    }

    .topic__txt--contact {
        color: var(--color-white);
        margin-top: 60px;
    }

    .btn--contact--wrapper {
        position: static;
        justify-content: flex-end;
        margin-top: 60px;
    }

    .btn--contact {
        color: var(--color-emerald);
        background-color: var(--color-white);
        border-radius: 25px;
    }

    .btn--contact::before {
        background-image: url('../images/btn-emerald.svg');
    }
}
/*====================================
Area
=====================================*/
.section--area {
    display: block;
    position: relative;
    padding: 64px var(--contentpadding);
    background-color: rgba(229, 243, 247, 0.8);
}

.section--area::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url(../images/area.png); /* 同じ背景画像 */
    background-size: 200%;
    background-repeat: no-repeat;
    background-position: 40% 80%;
    z-index: -1;
}

.topic__txt--area {
    text-align: center;
}

.area-group {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.area-group__item:nth-child(2){
    margin-top: 32px;
}

.area-group__topic {
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1; /* 100% */
}

.area {
    margin-top: 16px;
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 1.5; /* 150% */
}

/* common pc */

@media screen and (min-width:769px) {
    .section--area {
        position: absolute;
        display: flex;
        justify-content: space-between;
        gap: 40px;
        bottom: 0;
        left: 0;
        width: 50%;
        height: 80%;
        z-index: 2;
        border-radius: 0 10px 0 0;
        align-items: center;
    }

   .topic__group--center-area {
        text-align: start;
    }

    .section--area::before {
        opacity: 0.2;
    }

    .topic__area {
        font-size: 6.4rem;    
    }

    .subtopic__area {
        font-size: 1.6rem;
    }

    .topic__txt--area {
        padding: 0;
        font-size: 1.6rem;
        text-align: start;
        white-space: nowrap;
    }

    .area-group {
        margin-top: 0px;
    }
    
    .area-group__item:nth-child(2){
        margin-top: 60px;
    }
    
    .area-group__topic {
        font-size: 2.4rem;
    }
    
    .area {
        margin-top: 16px;
        font-size: 1.6rem;
        line-height: 1.75; /* 175% */
    }
}

@media screen and (min-width:769px) and (max-width:1200px) {
    .section--area {
        flex-direction: column;
        align-items: flex-start;
    }

    .topic__txt--area {
        margin-top: 28px;
    }

    .area-group {
        margin-top: 0px;
    }

    .area-group__item:nth-child(2) {
        margin-top: 18px;
    }

    .area {
        margin-top: 10px;
    }
}

/*====================================
footer
=====================================*/
.footer {
    padding: 60px var(--contentpadding);
}

.footerTitle {
    color: var(--color-black);
    font-size: 1.8rem;
    font-style: normal;
    font-weight: 700;
    line-height: normal;
}

.footerNav {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.footerNav__item:nth-child(2) {
    margin-top: 36px;
}

.footerNav__topic {
    font-family: Poppins;
    font-size: 2.8rem;
    font-weight: 600;
    line-height: 1;
}

.footerNav__txt {
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1;
}

.copy {
    color: var(--color-darkGray);
    font-size: 1.4rem;
    font-weight: 500;
    line-height: normal;
    margin-top: 40px;
}



/* common pc */
@media screen and (min-width:769px) {   
    .footer {
        padding: 60px var(--contentpadding);
    }

    .footerTitle {
        font-size: 2.4rem;
    }

    .footerNav {
        gap: 80px;
        justify-content: flex-end;
    }

    .footerNav__list {
        display: flex;
        gap: 80px;
    }

    .footerNav__list--left {
        gap: 40px;
    }

    .footerNav__item:nth-child(2) {
        margin-top: 0;
    }

    .footerNav__topic {
        font-size: 3.2rem;
    }

    .footerNav__txt {
        font-size: 1.6rem;
    }

    .copy {
        font-size: 1.6rem;
    }

}