main.css

@charset "UTF-8";/*! 
* jian.css v1.2.9
* https://github.com/jian-css/jian.css
* Copyright 2022 The jian.css Authors
*/
:root {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    /*color*/
    /*--main:#0d6efd;*/
    --pri: #0d6efd;
    --warn: rgb(255, 193, 7);
    --success: rgb(25, 135, 84);
    --info: rgb(13, 202, 240);
    /*--gray:rgb(108,117,125);*/
    --gray: #d8d8d8;

    /*fonts*/
    --mono: consolas,
        "Lucida Console",
        'Courier New',
        Courier,
        monospace;

    font-size: 1.1em;
}

@media (prefers-reduced-motion: no-preference) {
    :root {
        scroll-behavior: smooth;
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    line-height: 1.618;
}

textarea,
select,
input,
progress {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.c {
    max-width: 60rem;
    padding: 1.2rem;
    margin: auto;
}

@media (prefers-color-scheme: dark) {
    :root {
        background-color: #111;
        color: #ddd;
        color-scheme: dark;
        --gray: #2b2b2b;
        --pri: #ffb300;
    }

    img,
    video {
        opacity: 0.8;
    }
}

.btn {
    color: black;
    background-color: #fff;
    padding: 0.65rem;
    margin: 0.3rem;
    font-size: 0.9rem;
    display: inline-block;
    cursor: pointer;
    border: none;
    line-height: inherit;
    border: 2px solid var(--gray);
}

.btn.large {
    font-size: 1.2rem;
    padding: 0.75rem;
}

.btn.small {
    font-size: .8rem;
    padding: .5rem
}

.btn:hover {
    opacity: .8;
}

:is(.pri, .warn, .info, .success).btn {
    border: 2px solid transparent;
}

/*color*/
.pri,
.warn,
.info,
.success {
    color: white;
}

.pri {
    background-color: var(--pri);
}

.warn {
    background-color: var(--warn);
}

.info {
    background-color: var(--info);
}

.success {
    background-color: var(--success);
}

hr {
    margin: 1rem 0;
    color: inherit;
    border: 0;
    border-top: 1px solid;
    opacity: .25;
}

h1,
h2,
h3,
h4 {
    font-weight: 300;
    line-height: 1.2;
}

.row {
    display: flex;
    flex-wrap: wrap;
}

.row>* {
    flex-shrink: 0;
    width: 100%;
    max-width: 100%;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2.1rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.25rem;
}

@media screen and (min-width:576px) {
    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2.6rem;
        margin-top: 3rem;
    }

    h3 {
        font-size: 2rem;
        margin-top: 3rem;
    }

    h4 {
        font-size: 1.44rem;
    }

    h5 {
        font-size: 1.15rem;
    }

    h6 {
        font-size: 0.96rem;
    }

    .col {
        flex: 1 0 0%;
    }

    .col-1 {
        flex: 0 0 auto;
        width: 8.333%;
    }

    .col-2 {
        flex: 0 0 auto;
        width: 16.666%;
    }

    .col-3 {
        flex: 0 0 auto;
        width: 25%;
    }

    .col-4 {
        flex: 0 0 auto;
        width: 33.333%;
    }

    .col-5 {
        flex: 0 0 auto;
        width: 41.666%;
    }

    .col-6 {
        flex: 0 0 auto;
        width: 50%;
    }

    .col-7 {
        flex: 0 0 auto;
        width: 58.333%;
    }

    .col-8 {
        flex: 0 0 auto;
        width: 66.666%;
    }

    .col-9 {
        flex: 0 0 auto;
        width: 75%;
    }

    .col-10 {
        flex: 0 0 auto;
        width: 83.333%;
    }

    .col-11 {
        flex: 0 0 auto;
        width: 91.666%;
    }

    /*[class^=col]{
    padding:0 50px;
}*/
}

a:not(.btn) {
    color: var(--pri);
}

table,
input {
    width: 100%;
}

table {
    border-spacing: 0;
}

td,
th {
    padding: 0.7em;
    text-align: left;
    border-bottom: solid var(--info);
}

a {
    text-decoration: none;
}

a:empty::before {
    content: attr(href);
}

input,
.btn,
.card,
textarea,
img,
video,
pre,
code,
dialog,
mark {
    border-radius: 10px;
}

mark {
    background-color: var(--warn);
    padding: 2px 5px;
}

:is(input, textarea):focus {
    border: 1px solid var(--pri);
    outline: 0;
}

input {
    display: block;
    padding: 0.5rem;
    font-size: 1rem;
    line-height: 1.618;
    border: 1px solid #ced4da;
    margin: 1rem 0;
}

.card {
    border: 1px solid var(--gray);
    margin-bottom: 1.25rem;
    padding: 1rem;
}

.card :is(h2, h3):first-child {
    margin-top: 1rem;
}

footer {
    border-top: 1px solid var(--gray);
    font-size: 0.9rem;
    text-align: center;
    /*width: 80%;*/
    margin: auto;
    color: #585858;
}

pre,
code {
    font-family: var(--mono);
    background-color: var(--gray);
    padding: 1rem;
    overflow: auto;
}

blockquote {
    margin: 2rem 0 2rem 1.5rem;
    padding: 0.4rem 0.8rem;
    border-left: 0.35rem solid var(--pri);
    font-style: italic;
}

img,
video {
    max-width: 100%;
    height: auto;
}

dialog {
    border: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

input,
.btn,
textarea {
    transition: all .15s;
}

tr:hover {
    background-color: #eee;
}

/*:not(input,textarea):focus {
    outline: 3px solid blue;
    border: 0;
}*/