:root {
    --textcolor: #333333;
    --lightgray:#fafafa;
    --maincolor:#89BDD3;
    --lightmaincolor:#ECF5FA;
    --white: #fff;
    --container: 960px;
}
@media screen and (max-width:1024px){
    :root {
        --container: auto;
    }
}

html{
    font-size: 10px;
}

body{
    background-color: var(--lightmaincolor);
    font-family: "Helvetica Neue", "Helvetica", "Hiragino Sans", "Arial", "Yu Gothic", "Meiryo", sans-serif;
font-size: 1.6rem;
line-height: 1.6;
}

a{
    transition:0.5s;
}

a:hover{
    opacity: 0.5;
    transition:0.5s;
}

header{
    display: flex;
    justify-content: space-between;
    background-color: var(--white,#fff);
    border-bottom: 1px solid var(--maincolor);
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    width: var(--container);
    margin: 4.0rem auto 0 auto;
    padding: 40px;
}

header h1 a{
    color: var(--textcolor);
    font-size: 2.4rem;
    text-decoration: none;
}

header .header-nav a{
    color: var(--maincolor);
    font-size: 2.4rem;
    text-decoration: none;
}

@media screen and (max-width:1024px){
header{
    width: var(--container);
    margin: 0 2.0rem;
    padding: 2.0rem;
}
}

main{
    background-color: var(--white,#fff);
    width: var(--container);
    margin: 0 auto;
    padding: 40px;
}

main h2{
    font-size: 2.4rem;
    font-weight: bold;
    text-transform: uppercase;
}

main h3{
    font-size: 2.0rem;
    font-weight: bold;
    text-transform: uppercase;
    margin: 4.0rem 0 2.0rem 0;
}

main p{
    margin: 1.5rem 0;
}

@media screen and (max-width:1024px){
    main{
    margin: 0 2.0rem;
    padding: 20px;
}
}

/*-- sns --*/
nav.sns-block ul{
    display: grid;
    grid-column-gap: 1.0rem;
    grid-row-gap: 1rem;
    grid-template-columns:repeat(3,130px)
}

nav.sns-block ul li a{
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 2px solid var(--maincolor);
    border-radius: 4px;
    color: var(--textcolor);
    text-decoration: none;
    text-align: center;
    padding: 1.0rem 1.5rem;
}

nav.sns-block ul li a i{
    color: var(--maincolor);
}

@media screen and (max-width:768px){
nav.sns-block ul{
    grid-row-gap: 1rem;
}
}

footer{
    background-color: var(--white,#fff);
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    text-align: center;
    width: var(--container);
    margin: 0 auto 4.0rem auto;
    padding: 40px;
}

footer small{
    font-size: 1.4rem;
}

@media screen and (max-width:1024px){
footer{
    margin: 0 2.0rem;
    padding: 20px;
}
}

/*-- エラーテキスト --*/
p.error-text{
    text-align: center;
}