html,
body {
    margin: 0px;
    padding: 0px;
}

body {
    background-color: #ffffff;
    color: #000000;
    font-size: 1rem;
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo,
        sans-serif;
}

a:link {
    color: #007affff;
}

a:visited {
    color: #5856d6ff;
}

a:hover {
    color: #ff9500ff;
}

a:active {
    color: #ff2d55ff;
}

h2 {
    font-size: 1.5rem;
    font-weight: bold;
    padding: 0px;
    margin: 0px;
}

h3 {
    font-size: 1.2rem;
    font-weight: bold;
    padding: 0px;
    margin: 0px;
    margin-top: 2rem;
}

footer {
    padding-bottom: 1.5rem;
}

.container {
    display: block;
    margin-left: auto;
    margin-right: auto;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.copyright {
    text-align: center;
}

@media screen and (min-width: 1024px) {
    .container {
        width: 768px;
        position: relative;
    }
}

@media screen and (max-width: 1023px) {
    .container {
        width: auto;
        padding-left: 1rem;
        padding-right: 1rem;
        position: relative;
    }
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: #000000;
        color: #ffffff;
    }

    a:link {
        color: #0a84ffff;
    }

    a:visited {
        color: #5e5ce6ff;
    }

    a:hover {
        color: #ff9f0aff;
    }

    a:active {
        color: #ff375fff;
    }
}