.bio .a {
    width: 100%;
    height: calc(min(400px, 100vw) / 0.75);
    background: black;
    text-align: center;
}

.bio img {
    width: 100%;
    max-width: 400px;
}

.bio .b {
    margin: 0 auto;
    padding: 30px;
    text-align: center;
}

.bio p {
    font-size: 19px;
}

@media (min-width:1100px) {
    .bio .c {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 1050px;
        margin: 0 auto;
        padding: 40px;
    }
}

.portfolio .a {
    width: 100%;
    height: calc(min(450px, 100vw) / (2 / 3));
    background: black;
    text-align: center;
}

.portfolio img {
    width: 100%;
    max-width: 450px;
}

.portfolio .b {
    margin: 0 auto;
    padding: 10px;
}

.portfolio h3, .order h3 {
    font-size: calc(2.5em - 1vw);
    text-align: center;
}

.portfolio a, .order a {
    display: block;
    width: 300px;
    margin: 10px auto;
    padding: 10px;
    font-size: calc(2em - 0.75vw);
    text-align: center;
    color: black;
    text-decoration: none;
    border: 2px solid black;
}

@media (min-width:1100px) {
    .portfolio .c {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 1050px;
        margin: 0 auto;
        padding: 40px;
    }
    .portfolio .a {
        width: fit-content;
    }
    .portfolio img {
        width: 450px;
    }
}

.order .a {
    padding: 10px;
}

@media (min-width:800px) {
    .order .a {
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .order .a div {
        padding: 20px;
    }
}