* {
    box-sizing: border-box;
}

body {
    color: #fff;
    background-color: #333;
    font-family: sans-serif;
    margin: 0;
}

section {
    max-width: 700px;
    margin: auto;
    margin-bottom: 32px;
    background-color: #fff;
    color: #333;
    border: 1px solid #e5e5e5;
    border-radius: 3px;
}

article {
    padding: 16px 32px;
    border-bottom: 1px solid #e5e5e5;

    &:last-child {
        border-bottom: none;
    }
}

.title {
    max-width: 700px;
    margin: auto;

    h1 {
        font-weight: 500;
    }
}

h3 {
    margin: 0;
}

a {
    &,
    &:focus,
    &:active {
        color: #c92a60;
    }

    &:hover {
        color: #9d2a60;
    }
}

.button {
    position: relative;
    overflow: hidden;

    padding: 8px 16px;
    display: inline-block;
    cursor: pointer;
    border-radius: 3px;

    &, & * {
        user-select: none;
    }

    &.plain {
        border: 1px solid #e5e5e5;
        background-color: #f5f5f5;
        color: #222;

        &:hover {
            border-color: #e0e0e0;
            background-color: #f0f0f0;
        }
    }

    &.submit {
        border: 1px solid #9d2a60;
        background-color: #c92a60;
        color: #fff;

        &:hover {
            border-color: #4a1a31;
            background-color: #aa2452;
        }
    }

    input, button {
        position: absolute;
        top: 0;
        left: 0;
        bottom: 0;
        right: 0;
        margin: 0;
        padding: 0;
        font-size: 20px;
        cursor: pointer;
        opacity: 0;
        filter: alpha(opacity=0);
        width: 100%;
        border: 1px solid;
    }
}

@media (max-width: 700px) {
    section {
        border-radius: 0;
    }

    article {
        padding: 16px;
    }

    .title {
        padding: 0 16px;
    }
}