:root{
    --sans-font:-apple-system,BlinkMacSystemFont,"Avenir Next",Avenir,"Nimbus Sans L",Roboto,"Noto Sans","Segoe UI",Arial,Helvetica,"Helvetica Neue",sans-serif;
    --mono-font:Consolas,Menlo,Monaco,"Andale Mono","Ubuntu Mono",monospace;
    --standard-border-radius:5px;
    --border-width:1px;
    --bg:#2e3440;
    --accent-bg:#3b4252;
    --text:#3b4252;
    --text-light:#4c566a;
    --border:#434c5e;
    --accent:#000000;
    --accent-hover:#434c5e;
    --accent-text:#d8dee9;
    --code:#434c5e;
    --preformatted:#434c5e;
    --marked:#434c5e;
    --disabled:#434c5e
}
@media (prefers-color-scheme:dark){
    :root{
        color-scheme:dark;
        --bg:#2e3440;
        --accent-bg:#3b4252;
        --text:#eceff4;
        --text-light:#4c566a;
        --accent:#d8dee9;
        --accent-hover:#434c5e;
        --accent-text:#d8dee9;
        --code:#d8dee9;
        --preformatted:#d8dee9;
        --disabled:#434c5e
    }
    img,video{
        opacity:.8
    }
}
*,:before,:after{
    box-sizing:border-box
}
textarea,select,input,progress{
    -webkit-appearance:none;
    -moz-appearance:none;
    appearance:none
}
html{
    font-family:var(--sans-font);
    scroll-behavior:smooth
}
body{
    color:var(--text);
    background-color:var(--bg);
    grid-template-columns:1fr min(75rem,90%) 1fr;
    margin:0;
    font-size:1.15rem;
    line-height:1.5;
    display:grid
}
body>*{
    grid-column:2
}
body>header{
    background-color:var(--accent-bg);
    border-bottom:var(--border-width)solid var(--border);
    text-align:center;
    grid-column:1/-1;
    padding:0 .5rem 2rem
}
body>header>:only-child{
    margin-block-start:2rem
}
body>header h1{
    max-width:1200px;
    margin:1rem auto
}
body>header p{
    max-width:40rem;
    margin:1rem auto
}
main{
    padding-top:1.5rem
}
body>footer{
    color:var(--text-light);
    text-align:center;
    border-top:var(--border-width)solid var(--border);
    margin-top:4rem;
    padding:2rem 1rem 1.5rem;
    font-size:.9rem
}
h1{
    font-size:3rem
}
h2{
    margin-top:3rem;
    font-size:2.6rem
}
h3{
    margin-top:3rem;
    font-size:2rem
}
h4{
    font-size:1.44rem
}
h5{
    font-size:1.15rem
}
h6{
    font-size:.96rem
}
p{
    margin:1.5rem 0
}
p,h1,h2,h3,h4,h5,h6{
    overflow-wrap:break-word
}
h1,h2,h3{
    line-height:1.1
}
@media only screen and (width<=720px){
    h1{
        font-size:2.5rem
    }
    h2{
        font-size:2.1rem
    }
    h3{
        font-size:1.75rem
    }
    h4{
        font-size:1.25rem
    }
}
a,a:visited{
    color:var(--accent)
}
a:hover{
    text-decoration:none
}
button,.button,a.button,input[type=submit],input[type=reset],input[type=button]{
    border:var(--border-width)solid var(--accent);
    background-color:var(--accent);
    color:var(--accent-text);
    padding:.5rem .9rem;
    line-height:normal;
    text-decoration:none
}
.button[aria-disabled=true],input:disabled,textarea:disabled,select:disabled,button[disabled]{
    cursor:not-allowed;
    background-color:var(--disabled);
    border-color:var(--disabled);
    color:var(--text-light)
}
input[type=range]{
    padding:0
}
abbr[title]{
    cursor:help;
    text-decoration-line:underline;
    text-decoration-style:dotted
}
button:enabled:hover,.button:not([aria-disabled=true]):hover,input[type=submit]:enabled:hover,input[type=reset]:enabled:hover,input[type=button]:enabled:hover{
    background-color:var(--accent-hover);
    border-color:var(--accent-hover);
    cursor:pointer
}
.button:focus-visible,button:focus-visible:where(:enabled),input:enabled:focus-visible:where([type=submit],[type=reset],[type=button]){
    outline:2px solid var(--accent);
    outline-offset:1px
}
header nav{
    padding:1rem 0 0;
    font-size:1rem;
    line-height:2
}
header nav ul,header nav ol{
    flex-flow:wrap;
    place-content:space-around center;
    align-items:center;
    margin:0;
    padding:0;
    list-style-type:none;
    display:flex
}
header nav ul li,header nav ol li{
    display:inline-block
}
header nav a,header nav a:visited{
    border:var(--border-width)solid var(--border);
    border-radius:var(--standard-border-radius);
    color:var(--text);
    margin:0 .5rem 1rem;
    padding:.1rem 1rem;
    text-decoration:none;
    display:inline-block
}
header nav a:hover,header nav a.current,header nav a[aria-current=page],header nav a[aria-current=true]{
    background:var(--bg);
    border-color:var(--accent);
    color:var(--accent);
    cursor:pointer
}
@media only screen and (width<=720px){
    header nav a{
        border:none;
        padding:0;
        line-height:1;
        text-decoration:underline
    }
    header nav a.current{
        background:0 0
    }
}
aside,details,pre,progress{
    background-color:var(--accent-bg);
    border:var(--border-width)solid var(--border);
    border-radius:var(--standard-border-radius);
    margin-bottom:1rem
}
aside{
    float:right;
    width:30%;
    margin-inline-start:15px;
    padding:0 15px;
    font-size:1rem
}
[dir=rtl] aside{
    float:left
}
@media only screen and (width<=720px){
    aside{
        float:none;
        width:100%;
        margin-inline-start:0
    }
}
article,fieldset,dialog{
    border:var(--border-width)solid var(--border);
    border-radius:var(--standard-border-radius);
    margin-bottom:1rem;
    padding:1rem
}
article h2:first-child,section h2:first-child,article h3:first-child,section h3:first-child{
    margin-top:1rem
}
section{
    border-top:var(--border-width)solid var(--border);
    border-bottom:var(--border-width)solid var(--border);
    margin:3rem 0;
    padding:2rem 1rem
}
section+section,section:first-child{
    border-top:0;
    padding-top:0
}
section+section{
    margin-top:0
}
section:last-child{
    border-bottom:0;
    padding-bottom:0
}
details{
    padding:.7rem 1rem
}
summary{
    cursor:pointer;
    word-break:break-all;
    margin:-.7rem -1rem;
    padding:.7rem 1rem;
    font-weight:700
}
details[open]>summary+*{
    margin-top:0
}
details[open]>summary{
    margin-bottom:.5rem
}
details[open]>:last-child{
    margin-bottom:0
}
table{
    border-collapse:collapse;
    margin:1.5rem 0
}
figure>table{
    width:max-content;
    margin:0
}
td,th{
    border:var(--border-width)solid var(--border);
    text-align:start;
    padding:.5rem
}
th{
    background-color:var(--accent-bg);
    font-weight:700
}
tr:nth-child(2n){
    background-color:var(--accent-bg)
}
table caption{
    margin-bottom:.5rem;
    font-weight:700
}
textarea,select,input,button,.button{
    font-size:inherit;
    border-radius:var(--standard-border-radius);
    box-shadow:none;
    max-width:100%;
    margin-bottom:.5rem;
    padding:.5em;
    font-family:inherit;
    display:inline-block
}
textarea,select,input{
    color:var(--text);
    background-color:var(--bg);
    border:var(--border-width)solid var(--border)
}
label{
    display:block
}
textarea:not([cols]){
    width:100%
}
select:not([multiple]){
    background-image:linear-gradient(45deg,transparent 49%,var(--text)51%),linear-gradient(135deg,var(--text)51%,transparent 49%);
    background-position:calc(100% - 15px),calc(100% - 10px);
    background-repeat:no-repeat;
    background-size:5px 5px,5px 5px;
    padding-inline-end:25px
}
[dir=rtl] select:not([multiple]){
    background-position:10px,15px
}
input[type=checkbox],input[type=radio]{
    vertical-align:middle;
    width:min-content;
    position:relative
}
input[type=checkbox]+label,input[type=radio]+label{
    display:inline-block
}
input[type=radio]{
    border-radius:100%
}
input[type=checkbox]:checked,input[type=radio]:checked{
    background-color:var(--accent)
}
input[type=checkbox]:checked:after{
    content:" ";
    border-right:solid var(--bg).08em;
    border-bottom:solid var(--bg).08em;
    background-color:#0000;
    border-radius:0;
    width:.2em;
    height:.4em;
    font-size:1.8em;
    position:absolute;
    top:.04em;
    left:.18em;
    transform:rotate(45deg)
}
input[type=radio]:checked:after{
    content:" ";
    background-color:var(--bg);
    border-radius:100%;
    width:.3em;
    height:.3em;
    font-size:1.8em;
    position:absolute;
    top:.125em;
    left:.125em
}
@media only screen and (width<=720px){
    textarea,select,input{
        width:100%
    }
}
input[type=color]{
    height:2.5rem;
    padding:.2rem
}
input[type=file]{
    border:0
}
hr{
    height:var(--border-width);
    background:var(--border);
    border:none;
    margin:1rem auto
}
mark{
    border-radius:var(--standard-border-radius);
    background-color:var(--marked);
    color:#000;
    padding:2px 5px
}
mark a{
    color:#0d47a1
}
img,video{
    border-radius:var(--standard-border-radius);
    max-width:100%;
    height:auto
}
figure{
    margin:0;
    display:block;
    overflow-x:auto
}
figure>img,figure>picture>img{
    margin-inline:auto;
    display:block
}
figcaption{
    text-align:center;
    color:var(--text-light);
    margin-block:1rem;
    font-size:.9rem;
    position:sticky;
    left:0
}
blockquote{
    border-inline-start:.35rem solid var(--accent);
    color:var(--text-light);
    margin-block:2rem;
    margin-inline:2rem 0;
    padding:.4rem .8rem;
    font-style:italic
}
cite{
    color:var(--text-light);
    font-size:.9rem;
    font-style:normal
}
dt{
    color:var(--text-light)
}
code,pre,pre span,kbd,samp{
    font-family:var(--mono-font);
    color:var(--code)
}
kbd{
    color:var(--preformatted);
    border:var(--border-width)solid var(--preformatted);
    border-bottom:3px solid var(--preformatted);
    border-radius:var(--standard-border-radius);
    padding:.1rem .4rem
}
pre{
    max-width:100%;
    color:var(--preformatted);
    padding:1rem 1.4rem;
    overflow:auto
}
pre code{
    color:var(--preformatted);
    background:0 0;
    margin:0;
    padding:0
}
progress{
    width:100%
}
progress:indeterminate{
    background-color:var(--accent-bg)
}
progress::-webkit-progress-bar{
    border-radius:var(--standard-border-radius);
    background-color:var(--accent-bg)
}
progress::-webkit-progress-value{
    border-radius:var(--standard-border-radius);
    background-color:var(--accent)
}
progress::-moz-progress-bar{
    border-radius:var(--standard-border-radius);
    background-color:var(--accent);
    transition-property:width;
    transition-duration:.3s
}
progress:indeterminate::-moz-progress-bar{
    background-color:var(--accent-bg)
}
dialog{
    background-color:var(--bg);
    max-width:40rem;
    margin:auto
}
dialog::backdrop{
    background-color:var(--bg);
    opacity:.8
}
@media only screen and (width<=720px){
    dialog{
        max-width:calc(100vw - 2rem)
    }
}
sup,sub{
    vertical-align:baseline;
    position:relative
}
sup{
    top:-.4em
}
sub{
    top:.3em
}
.notice{
    background:var(--accent-bg);
    border:var(--border-width)solid var(--border);
    border-radius:var(--standard-border-radius);
    margin:2rem 0;
    padding:1.5rem
}
@media print{
    @page{
        margin:1cm
    }
    body{
        display:block
    }
    body>header{
        background-color:unset
    }
    body>header nav,body>footer{
        display:none
    }
    article{
        border:none;
        padding:0
    }
    a[href^=http]:after{
        content:" <" attr(href)">"
    }
    abbr[title]:after{
        content:" (" attr(title)")"
    }
    a{
        text-decoration:none
    }
    p{
        widows:3;
        orphans:3
    }
    hr{
        border-top:var(--border-width)solid var(--border)
    }
    mark{
        border:var(--border-width)solid var(--border)
    }
    pre,table,figure,img,svg{
        break-inside:avoid
    }
    pre code{
        white-space:pre-wrap
    }
}

.craftering {
    margin: auto;
    width: 50%;
    text-align: center;
}