style.css

/*
Bamboo CSS: https://rilwis.github.io/bamboo/
Dark version: https://unpkg.com/bamboo.css@1.3.9/dist/dark.min.css
Unminifier: https://mrcoles.com/blog/css-unminify/
Color scheme: https://www.nordtheme.com/
*/

:root {
    --b-font-main: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    --b-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    --b-txt: #ECEFF4;
    --b-bg-1: #2E3440;
    --b-bg-2: #3B4252;
    --b-line: #3B4252;
    --b-link: #88C0D0;
    --b-btn-bg: #242933;
    --b-btn-txt: #ECEFF4;
    --b-focus: #5E81AC;
}

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

html:focus-within {
    scroll-behavior: smooth;
}

body {
    max-width: 75ch;
    padding: 0 1rem;
    margin: auto;
    background: var(--b-bg-1);
    font-family: var(--b-font-main);
    text-rendering: optimizeSpeed;
    line-height: 1.5;
    color: var(--b-txt);
    -moz-tab-size: 4;
    tab-size: 4;
    word-break: break-word;
    -webkit-tap-highlight-color: transparent;
    -webkit-text-size-adjust: 100%
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
dl,
dd,
details,
blockquote,
pre,
figure,
table,
address,
hr,
fieldset,
iframe,
audio,
video {
    margin: 0 0 1.5rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.25;
    margin-top: 2rem;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

h4 {
    font-size: 1rem;
}

h5 {
    font-size: .875rem;
}

h6 {
    font-size: .75rem;
}

a {
    color: var(--b-link);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

embed,
iframe,
object {
    max-width: 100%
}

iframe {
    border-style: none;
}

abbr[title] {
    text-decoration: underline;
    text-decoration: underline dotted;
}

blockquote {
    margin-left: 0;
    padding: .5rem 0 .5rem 1.5rem;
    border-left: .25rem solid var(--b-txt);
}

blockquote>:last-child {
    margin-bottom: 0;
}

small {
    font-size: .875rem;
}

sub,
sup {
    font-size: .75em;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
}

sub {
    bottom: -0.25em;
}

sup {
    top: -0.5em;
}

hr {
    height: 0;
    overflow: visible;
    border: 0;
    border-bottom: 1px solid var(--b-line);
}

pre,
code,
kbd,
samp,
tt,
var {
    background: var(--b-bg-2);
    border-radius: .25rem;
    padding: .125rem .25rem;
    font-family: var(--b-font-mono);
    font-size: .875rem;
}

pre {
    padding: 1rem;
    border-radius: 0;
    overflow: auto;
    white-space: pre;
}

pre code {
    padding: 0;
}

details {
    display: block;
    padding: .5rem 1rem;
    background: var(--b-bg-2);
    border: 1px solid var(--b-line);
    border-radius: .25rem;
}

details>:last-child {
    margin-bottom: 0;
}

details[open]>summary {
    margin-bottom: 1.5rem;
}

summary {
    display: list-item;
    cursor: pointer;
    font-weight: bold;
}

summary:focus {
    box-shadow: none;
}

table {
    border-collapse: collapse;
    width: 100%;
    text-indent: 0;
}

table caption {
    margin-bottom: .5rem;
}

tr {
    border-bottom: 1px solid var(--b-line);
}

td,
th {
    padding: .5rem 0;
}

th {
    text-align: left;
}

ul,
ol,
dd {
    padding-left: 2rem;
}

li>ul,
li>ol {
    margin-bottom: 0;
}

fieldset {
    padding: .5rem .75rem;
    border: 1px solid var(--b-line);
    border-radius: .25rem;
}

legend {
    padding: 0 .25rem;
}

label {
    cursor: pointer;
    display: block;
    margin-bottom: .25rem;
}

button,
input,
select,
textarea {
    margin: 0;
    padding: .5rem .75rem;
    max-width: 100%;
    background: var(--b-bg-2);
    border: 0;
    border-radius: .25rem;
    font: inherit;
    line-height: 1.125;
    color: var(--b-txt);
}

select,
input:not([size]):not([type=button i]):not([type=submit i]):not([type=reset i]):not([type=checkbox i]):not([type=radio i]) {
    width: 100%
}

[type=color i] {
    min-height: 2.125rem;
}

select:not([multiple]):not([size]) {
    padding-right: 1.5rem;
    background-repeat: no-repeat;
    background-position: right .5rem center;
    -moz-appearance: none;
    -webkit-appearance: none;
    appearance: none;
}

textarea {
    width: 100%;
    resize: vertical;
}

textarea:not([rows]) {
    height: 8rem;
}

button,
[type=button i],
[type=submit i],
[type=reset i] {
    -webkit-appearance: button;
    display: inline-block;
    text-align: center;
    white-space: nowrap;
    background: var(--b-btn-bg);
    color: var(--b-btn-txt);
    border: 0;
    cursor: pointer;
    transition: opacity .25s;
}

button:hover,
[type=button i]:hover,
[type=submit i]:hover,
[type=reset i]:hover {
    opacity: .75;
}

button[disabled],
[type=button i][disabled],
[type=submit i][disabled],
[type=reset i][disabled] {
    opacity: .5;
}

progress {
    vertical-align: middle;
}

[type=search i] {
    -webkit-appearance: textfield;
    outline-offset: -2px;
}

::-webkit-inner-spin-button,
::-webkit-outer-spin-button {
    height: auto;
}

::-webkit-input-placeholder {
    color: inherit;
    opacity: .5;
}

::-webkit-search-decoration {
    -webkit-appearance: none;
}

::-webkit-file-upload-button {
    -webkit-appearance: button;
    font: inherit;
}

::-moz-focus-inner {
    border-style: none;
    padding: 0;
}

:-moz-focusring {
    outline: 1px dotted ButtonText;
}

:-moz-ui-invalid {
    box-shadow: none;
}

[aria-busy=true i] {
    cursor: progress;
}

[aria-controls] {
    cursor: pointer;
}

[aria-disabled=true i],
[disabled] {
    cursor: not-allowed;
}

:focus,
details:focus-within {
    outline: none;
    box-shadow: 0 0 0 2px var(--b-focus);
}

@media(prefers-reduced-motion: reduce) {
    html:focus-within {
        scroll-behavior: auto;
    }

    *,
    ::before,
    ::after {
        animation-delay: -1ms !important;
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        background-attachment: initial !important;
        scroll-behavior: auto !important;
        transition-delay: 0 !important;
        transition-duration: 0 !important;
    }
}

select:not([multiple]):not([size]) {
    background-image: url("data:image/svg+xml, %3Csvg width='16' height='16' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg' fill='%23eceff4'%3E%3Cpath d='M5 6l5 5 5-5 2 1-7 7-7-7 2-1z'/%3E%3C/svg%3E");
}