* {
        box-sizing: border-box;
    }

    :root {
        --bg: #ffffff;
        --text: #000000;
        --link: #0000FF;
        --link-hover: #6666FF;
    }

    @media (prefers-color-scheme: dark) {
        :root {
            --bg: #1a1a1a;
            --text: #f0f0f0;
            --link: #77B1D4;
            --link-hover: #90D5FF;
        }
    }

    body {
        background-color: var(--bg);
        color: var(--text);
        font-family: "Times New Roman", serif;
    }

    a {
        color: var(--link);
    }

    a:hover {
        color: var(--link-hover);
    }

    .page {
        max-width: 800px;
        margin: 0 auto;
    }

    .post {
        line-height: 0.4;
        margin-left: 20px;
        margin-right: 20px;
    }

    .submit {
        margin-left: 20px;
        margin-right: 20px;
    }

    .submit form textarea {
        resize: vertical;
        width: 100%;
        min-height: 40px;
    }

    .submit form input[type="submit"] {
        width: 50%;
        padding: 10px;
        cursor: pointer;
    }

    .buttoncontainer {
        display: flex;
        justify-content: center;
        align-items: center;
    }

    header, footer {
        text-align: center;
    }