html-base/css/style.css

/*
 * Copyright (c) 2025 Lucas Gabriel Vuotto <lucas@lgv5.net>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

:root {
  --dark-theme-bg: #000000;
  --dark-theme-text: #ffffff;
  --dark-theme-accent: #ec57bc;
  --dark-theme-accent-hover: #f7be00;

  --light-theme-bg: #ffffff;
  --light-theme-text: #000000;
  --light-theme-accent: #4997ce;
  --light-theme-accent-hover: #f7be00;

  --bg: var(--light-theme-bg);
  --text: var(--light-theme-text);
  --accent: var(--light-theme-accent);
  --accent-hover: var(--light-theme-accent-hover);

  --gap: 1.5rem;
  --viewport-width: 60rem;

  --border-thin: 0.0625rem solid var(--accent);
}

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

dl,
h1,
h2,
h3,
ol,
p,
ul {
  margin: 0;
}

body {
  margin: 0 auto;
  min-height: 100vh;
  background-color: var(--bg);
  color: var(--text);
  font-family: monospace;
  font-size: 1rem;
  line-height: 1.5;
}

dl,
h1,
h2,
h3,
ol,
p,
ul {
  margin-bottom: var(--gap);
}

h1 {
  text-align: center;
  font-size: 3rem;
  line-height: 2;
}

h2 {
  font-size: 2.5rem;
  line-height: 1.2;
}

h3 {
  font-size: 2rem;
  line-height: 1.5;
}

dd {
  margin-left: calc(var(--gap) * 2);
}

dt {
  font-weight: bold;
}

ol,
ul {
  padding-left: calc(var(--gap) * 2);
}

a,
a:link,
a:visited {
  color: var(--accent);
}

a:hover,
a:active {
  color: var(--accent-hover);
}

body > header {
  border-bottom: var(--border-thin);
  font-size: 1.25rem;
  line-height: 2.4;
}

body > header > nav {
  gap: 0 var(--gap);
}

body > header > nav > a {
  font-weight: bold;
  text-decoration: none;
}

body > footer {
  border-top: var(--border-thin);
  line-height: 3;
}

body > footer > p {
  margin-bottom: 0;
}

main {
  border-top: var(--border-thin);
  border-bottom: var(--border-thin);
  padding-top: var(--gap);
  margin-top: 0.1875rem;
  margin-bottom: 0.1875rem;
}

.text-center {
  text-align: center;
}

.layout-viewport {
  margin-left: auto;
  margin-right: auto;
  width: var(--viewport-width);
}

.layout-flex-row {
  display: flex;
  flex-direction: row;
}

.layout-flex-column {
  display: flex;
  flex-direction: column;
}

.layout-flex-item-fullsize {
  flex: auto;
}

@media screen and (min-width: 15rem) {
  :root {
    --viewport-width: 15rem;
  }
}

@media screen and (min-width: 30rem) {
  :root {
    --viewport-width: 30rem;
  }
}

@media screen and (min-width: 45rem) {
  :root {
    --viewport-width: 45rem;
  }
}

@media screen and (min-width: 60rem) {
  :root {
    --viewport-width: 60rem;
  }
}

@media screen and (min-width: 90rem) {
  :root {
    --viewport-width: 90rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--dark-theme-bg);
    --text: var(--dark-theme-text);
    --accent: var(--dark-theme-accent);
    --accent-hover: var(--dark-theme-accent-hover);
  }
}