saner-so by LifeJustDLC

/* ==UserStyle==
@name         saner-so
@version      20240902.15.32
@namespace    https://userstyles.world/user/LifeJustDLC
@description  exact 80 characters wide code block on stackoverflow. you can stop blame SO and start blame code poster lol
@author       LifeJustDLC
@license      Unlicense
==/UserStyle== */

@-moz-document domain("stackoverflow.com") {
/*
01234567890123456789012345678901234567890123456789012345678901234567890123456789
0---------1---------2---------3---------4---------5---------6---------7---------
*/

:root {
    --code-fs-num: 15;
    --code-scale: calc(var(--code-fs-num)/14);
    --code-mw: calc(80ch * var(--code-scale) + 40px);
    --main-fs: 18px;
    --main-mw: calc(var(--code-mw) + 132px); /* practically good */
    /* --main-mw: calc(var(--code-mw) + 96px); */ /* theoretically right */
    --comment-fs: 16px;
}

.s-code-block * {
    font-size: calc(var(--code-fs-num) * 1px);
}

.s-code-block {
    min-width: var(--code-mw);
}

.snippet-code {
    padding: 0;
}

.s-btn.s-btn__filled {
    margin-left: 4px;
}

.js-post-body p {
    font-size: var(--main-fs);
}

.comment-text * {
    font-size: var(--comment-fs);
}

#mainbar {
    min-width: var(--main-mw);
}

#sidebar {
    max-width: 200px;
}
}