* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent !important
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif
}

h1 {
    font-size: 48px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 8px;
    letter-spacing: -0.5px
}

h1 small {
    font-size: 16px;
    font-weight: 400;
    color: #a0aec0;
    margin-left: 12px
}

h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    border-radius: 4px;
    margin-top: 12px
}

a {
    text-decoration: none;
    color: #000;
    transition: color 0.2s ease
}

a:hover {
    color: #667eea;
    text-decoration: none
}

hr {
    border: none;
    border-top: 2px solid #edf2f7;
    margin: 30px 0 20px
}

pre {
    display: block;
    overflow-x: auto;
    white-space: pre;
    -webkit-overflow-scrolling: touch;
    max-width: 100%
}

@media screen and (max-width:768px) {
    body {
        padding: 15px
    }

    h1 {
        font-size: 22px
    }

    h1 small {
        display: block;
        margin-left: 0;
        margin-top: 4px;
        font-size: 14px
    }
}

@media screen and (max-width:480px) {
    h1 {
        font-size: 18px
    }

    td,
    th {
        padding: 8px 10px;
        font-size: 12px
    }
}

@media (prefers-color-scheme:dark) {
    html {
        background: #000000
    }

    h1 {
        color: #e2e8f0
    }

    h1 small {
        color: #718096
    }
    
    a {
        color: #fff
    }

    a:hover {
        color: #7f9cf5
    }

    hr {
        border-top-color: #2d3748
    }

    pre {
        color: #fff
    }
}