html{
    font-size: 100%;
}

body{
    font-family: 'Noto Sans','Noto Sans JP', sans-serif;
    font-size: 1rem;
    color: #333;
}

img{
    max-width: 100%;
}

.wrapper{
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

.readmore{
    font-size: 0.85rem;
    margin-bottom: 70px;
}

.readmore a{
    padding-bottom: 1px;
    color: #333;
    position: relative;
}

.readmore a::after{
    content: "";
    width: 100%;
    height: 1px;
    background-color: #333;
    position: absolute;
    left: 0;
    bottom: 0;
    transition: all 200ms ease;
}

.readmore a:hover::after{
    opacity: 0;
    transform: translateY(3px);
}


/* header */
header{
    width: 100%;
    background-color: #fff;
    position: fixed;
    z-index: 10;
}

.site-title{
    line-height: 1;
    padding: 20px 16px;
}

.header-nav{
    background-color: #333;
    color: #fff;
    padding: 8px 0;
}

.header-nav .wrapper{
    display: flex;
    align-items: center;
    gap: 0 32px;
}

.header-nav .wrapper li a{
    font-size: 0.75rem;
}

.header-nav .wrapper li a:hover{
    color: lightgray;
}


/* pickup */
#pickup{
    display: flex;
    justify-content: space-between;
    gap: 0 30px;
    padding-top: 150px;
    text-align: center;
}

#pickup .wrapper article{
    width: calc(100%/3);
}

#pickup p{
    margin: 16px 0;
    font-weight: 600;
}


/* column */
#container{
    display: flex;
    justify-content: space-between;
    gap: 0 40px;
}

#column{
    width: 70%;
    text-align: center;
}

#column h2{
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 20px;
    text-align: left;
}

#column ul{
    display: flex;
    gap:0 24px;
    margin-bottom: 10px;
}

#column p{
    margin: 20px 0 30px;
}

/* aside */
#sidebar{
    width: 30%;
}

.side-title{
    font-size: 1.2rem;
    font-weight: 600;
    margin: 30px 0;
}

#author{
    text-align: center;
    margin-bottom: 60px;
}

#author img{
    width: 50%;
    border-radius: 50%;
}

#ranking{
    text-align: center;
}

#ranking p{
    margin: 5px 0 30px;
    font-size: 0.9rem;
}

#archive{
    text-align: center;
}

#archive .side-title{
    margin-top: 60px;
}

.archive-list{
    border-top: solid 1px lightgray;
}

.archive-list li{
    border-bottom: solid 1px lightgray;
    padding: 24px 0 24px 16px;
    font-size: 0.85rem;
}

.archive-list li a:hover{
    color: lightslategray;
}


/* footer */
footer{
    background-color: #f7f7f7;
    margin-top: 60px;
    padding: 50px 0 10px;
    font-size: 0.85rem;
}

.content{
    display: flex;
    gap: 0 50px;
    padding-bottom: 80px;
}

.content .item{
    width: calc(100%/3);
}

.footer-title{
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 30px;
}

.about-list{
    margin-top: 20px;
}

.about-list li{
    padding: 5px 0;
}

.about-list li .arrow{
    position: relative;
    display: inline-block;
    padding-left: 12px;
    color: #333;
}

.about-list li .arrow::before{
    content: "";
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 6px 0 6px 8px;
    border-color: transparent transparent transparent #333;
    position: absolute;
    top:50%;
    left: 0;
    margin-top: -6px;
}

.menu-list{
    border-top: solid 1px #2d2d2d;
}

.menu-list li{
    border-bottom: solid 1px #2d2d2d;
    padding:10px 0 10px 16px;
}

.copyright{
    text-align: center;
    font-size: 0.7rem;
}


@media(max-width:768px){
    .header-nav{
        overflow-x: scroll;
    }

    #pickup{
        flex-direction: column;
        padding-top: 150px;
    }

    #pickup .wrapper article{
        width: 100%;
    }

    #container{
        flex-direction: column;
    }

    #column{
        width: 100%;
    }

    #column h2{
        font-size: 1.2rem;
    }

    #sidebar{
        width: 100%;
    }

    #author img{
        width: 30%;
    }

    .content{
        flex-direction: column;
    }

    .content .item{
        width: 100%;
        margin-bottom: 40px;
    }
}