*{
    margin: 0;
    padding: 0;
    z-index: 50;
    color: rgb(0,0,0);
}

:root{
    font-family: "Noto Sans JP";
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    font-size: 18px;
    width: 100%;
}

html{
    width: 100vh;
    padding: 0;
}

body{
    width: 100%;
    display: flex;
    flex-direction: column;
}

h1,h2,h3,h4{
    font-family: "Inter";
    font-weight: 500;
}

p{
    font-size: 0.8rem;
}

input,textarea{
    background-color: rgb(255,255,255);
    padding: 0.5rem 0.8rem;
    border-radius: 0.5rem;
    width: 100%;
}
label{
    color: rgb(255,255,255);
    font-size: 0.7rem;
}
input[type="submit"],button{
    width: fit-content;
    background-color: rgb(255,255,255);
    color: rgb(0,0,0);
    font-weight: 600;
    font-size: 0.8rem;
    padding: 0.5rem 3rem;
    border: none;
    border-radius: 100rem;
    cursor: pointer;
}

header{
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    min-height: auto;
    padding: 1rem 0;
    background-color: rgb(0,0,0);
    display: flex;
    justify-content: center;
    align-items: center;
}
header .content_box{
    align-items: end;
    max-width: none;
}
header .content_box a{
    display: flex;
    background-color: rgb(255,255,255);
    width: fit-content;
    padding: 0.7rem 0.8rem;
}
header .content_box a span{
    color: rgb(0,0,0);
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 600;
}

footer{
    display: flex;
    flex-direction: column;
    margin-top: 8rem;
    margin-bottom: 4rem;
}

footer .content_box{
    max-width: none;
}

footer .content_box.link_box{
    display: flex;
    column-gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

footer .content_box.link_box h2{
    margin-bottom: 1rem;
    font-weight: 600;
}

footer .content_box.link_box a{
    text-decoration: none;
    color: rgb(var(--color-black));
    font-size: 0.8rem;
}

footer .content_box.copy_box{
    display: flex;
    flex-direction: column;
    row-gap: 0.2rem;
}

footer .content_box.copy_box .logo_box{
    display: flex;
    flex-direction: column;
    align-items: center;
    width: max-content;
}
footer .content_box.copy_box span{
    font-size: 0.7rem;
}

footer .content_box.copy_box .logo_box span{
    font-weight: 600;
    font-family: "Inter";
}

footer .content_box.copy_box .logo_box span.logo_upper{
    font-size: 1.2rem;
}

footer .content_box.copy_box .logo_box span.logo_lower{
    font-size: 2rem;
    letter-spacing: -0.15rem;
    margin-top: -0.2rem;
}

/* content box */
.content_box_wrapper{
    position: relative;
    width: 100%;
    min-height: 20rem;
    background-color: rgb(var(--color-gray));
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    padding: 2rem 0;
    row-gap: 1rem;
    align-items: center;
}
.content_box_wrapper .content_box:nth-last-child(1){
    margin-bottom: 2rem;
}
.content_box{
    width: 100%;
    max-width: 1300px;
    padding: 0 4rem;
    display: flex;
    flex-direction: column;
    row-gap: 1rem;
}



.smt_show{
    display: none !important;
}

@media screen and (max-width: 600px) {
	/* CSS for SmartPhones */
    :root{
        font-size: 12px;
    }

    .content_box{
        padding: 0 2rem;
    }

    .smt_hide{
        display: none !important;
    }
    
    .smt_show{
        display: inherit !important;
    }
}