@charset "utf-8";
/* ========================
common
========================= */

:root{
    --primary-whiteLow:#F5F5F5;
    --primary-white:#FFF;
    --primary-rightGreen:#35BB8C;
    --primary-yellow:#FAFF00;
    --primary-greenBlack:#454747;
    --contentWidth:91.8%;
    --contentPadding:4.1%;
}

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

html, body {
    width: 100%;
    font-size: 62.5%;
    font-family: 'Noto Sans Jp', Arial, sans-serif;
    font-style: normal;
    color: var(--primary-greenBlack);
    background-color: var(--primary-white);
    line-height: 2;
}

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

.section {
    padding: 48px 16px;
}

/* タイトル */
.section__title__big--green {
    color: var(--primary-rightGreen);
    text-align: center;
    font-size: 7.2rem;
    font-weight: 900;
    line-height: 1;
    letter-spacing: 10.8px;
    margin: 0 auto;
    opacity: 0.2;
}

.section__title__big--white {
    color: var(--primary-whiteLow);
    text-align: center;
    font-size: 7.2rem;
    font-weight: 900;
    line-height: 1;
    letter-spacing: 10.8px;
    margin: 0 auto;
    opacity: 0.2;
}

.section__title__small--green {
    color: var(--primary-rightGreen);
    text-align: center;
    font-size: 2.4rem;
    font-weight: 500;
    line-height: 1;
}

.section__title__small--white {
    color: var(--primary-white);
    text-align: center;
    font-size: 2.4rem;
    font-weight: 500;
    line-height: 1;
}

.section__subtitle--green  {
    color: var(--primary-rightGreen);
    text-align: center;
    font-size: 1.8rem;
    font-weight: 500;
    line-height: 2;
}

.section__subtitle--wthite  {
    color: var(--primary-white);
    text-align: center;
    font-size: 1.8rem;
    font-weight: 500;
    line-height: 2;
}

.section__txt--green {
    color: var(--primary-rightGreen);
    text-align: center;
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 2;
}

.section__txt--white {
    color: var(--primary-white);
    text-align: center;
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 2;
}

/* ボタン */
.btn {
    display: inline-flex;
    padding: 24px 18px 24px 48px;
    justify-content: center;
    align-items: center;
    gap: 32px;
    border-radius: 100px;
    border: 2px solid var(--primary-greenBlack);
    background: var(--primary-yellow);
    color: var(--primary-greenBlack);
    text-align: center;
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
}

.btn::after {
    content: '';
    display: block;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid var(--primary-greenBlack);
    transform: rotate(270deg);
}

.btn__sp--green {
    background: var(--primary-rightGreen);
}

@media screen and (min-width:769px) {
    .btn {
        padding: 32px 24px 32px 56px;
        font-size: 1.8rem;
    }
    
    .btn::after {
        border-left: 10px solid transparent;
        border-right: 10px solid transparent;
        border-top: 10px solid var(--primary-greenBlack);
    }
    
    .btn__green {
        background: var(--primary-rightGreen);
    }

.section__title__big--green {
    font-size: 14rem;
    font-weight: 900;
    line-height: 1;
    letter-spacing: 21px;
}

.section__title__big--white {
    font-size: 14rem;
    font-weight: 900;
    line-height: 1;
    letter-spacing: 21px;
}

.section__title__small--green {
    font-size: 3.6rem;
    font-weight: 500;
    line-height: 1;
}

.section__subtitle--green  {
    font-size: 1.8rem;
    font-weight: 500;
    line-height: 1.6;
}

.section__subtitle--wthite  {
    font-size: 1.8rem;
    font-weight: 500;
    line-height: 1.6;
}

.section__txt--green {
    font-size: 1.8rem;
    font-weight: 500;
    line-height: 2;
}

.section__txt--white {
    font-size: 1.8rem;
    font-weight: 500;
    line-height: 2;
}

}

/* ==========================
header
========================== */
.header__box {
    background-color: var(--primary-white);
    position: sticky;
    top: 0;
    z-index: 3;
}

.header {
    padding: 6px 20px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    position: sticky;
    top: 0;
    z-index: 3;
    background-color: var(--primary-white);
}

.header__topic {
    color: var(--primary-rightGreen);
    font-size: 2.4rem;
    font-weight: 500;
    line-height: 1;
    padding: 18px 0;
}

.nav__topic a {
    color: var(--primary-white);
    font-size: 2.4rem;
    font-weight: 500;
    line-height: 1;
    z-index: 3;
}

/* クリック前 */
.header__btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 50%;
    right: 16px;
    width: 40px;
    height: 40px;
    z-index: 3;
    cursor: pointer;
    transform: translateY(-50%);
    background-color: var(--primary-rightGreen);
    border-radius: 4px;
    padding: 8px;
    gap: 6px; 
}

/* ナビゲーション */
.nav {
    background: var(--primary-white);
    width: 100%;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    transform: translateX(-100%);
    transition: transform 0.4s;
    text-align: center;
}

.nav__list {
    display: flex;
    flex-wrap: wrap;
    padding: 2px 16px;
    justify-content: center;
    gap: 40px;
    flex-direction: column;
    align-content: center;
    align-items: flex-start;
    margin-top: 53px;

}

.nav__item {
    color: var(--primary-white);
    font-size: 1.6rem;
    font-weight: 500;
    line-height: 1;
}

.nav__list__btn {
    margin-top: 49px;
}

/* 3本線 */
.header__btn span {
    width: 30px;
    height: 3px;
    background-color: var(--primary-white);
    border-radius: 4px;
    transition: all 0.3s ease-in-out;
    transform-origin: center;
}

/* .nav.active表示 */
.header__btn.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.header__btn.active span:nth-child(2) {
    opacity: 0;
}

.header__btn.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.active .nav {
    transform: translateX(0);   
    z-index:1; 
    background-color: var(--primary-rightGreen);
}

@media screen and (min-width: 769px) {
    .header {
        background-color: var(--primary-whiteLow);
        padding: 7px 64px;
        width:100%;
        height: 64px;
    }

    .nav {
        background: none; 
        position: static;
        height: auto;
        transform: none; 
        display: flex;
        justify-content: center; 
        align-items: center;
    }
    .nav__list {
        display: flex; 
        flex-direction: row; 
        gap: 40px;
        padding: 0;
        margin: 0;
        align-items: center;
    }

    .nav__item {
        color:var(--primary-rightGreen);
        font-size: 1.6rem;
        font-weight: 500;
        line-height: 1;
        white-space: nowrap;
    }


    .header__btn {
        display: none;
    }

    .nav__list__btn {
        display: none;
    }
}


/*===================
footer 
================== */

.footer {
    color: var(--primary-greenBlack);
    text-align: center;
    font-family: "Noto Sans JP";
    font-size: 10px;
    font-style: normal;
    font-weight: 500;
    line-height: 1000%; /* 100px */
}

.footer__pcBox {
    display: none;
}

@media screen and (min-width:769px) {
    .footer__pcBox {
        display: block;
    }

    .footer__menu {
        display: flex;
    }

    .footer__pcBox__big {
        display: flex;
        gap: 80px;
        justify-content: center;
    }

    .footer__title {
        color: var(--primary-rightGreen);
        font-size: 2.4rem;
        font-weight: 500;
        line-height: 1;
        margin-top: 56px;
    }

    .footer__pcBox__small__title {
        font-size: 1.6rem;
        font-weight: 400;
    }

    .footer__pcBox__small__txt {
        font-size: 1.2rem;
        font-weight: 400;
        line-height: 1;
        margin-top: 14px;
    }

    .footer__pcBox__small {
        text-align: left;
    }

    .footer__txt {
        margin-top: 85px;
    }

    .footer {
        background-color: var(--primary-whiteLow);
        padding: 56px;
    }
}