:root {
  --bg: white;
  --text: black;
  --accent: black;
  --hyperlien: darkblue;
  --entete: lightgreen}

body {
  background: var(--bg);
  color: var(--text);
  font-size: 20px;
  font-family: Arial, Helvetica, sans-serif;
  margin: 0px 0px 0px 0px;
  padding: 0px 100px 40px 100px;
  width: 90%}

body.dark {
  --bg: black;
  --text: white;
  --accent: white;
  --hyperlien: lightblue;
  --entete: rgb(0, 55, 0)}

h1 {color: var(--accent);
  margin: 0px 0px 20px 0px;
  font-size: 40px;
  font-weight: bold}

h2 {color: var(--accent);
  margin: 0px 0px 20px 60px;
  font-size: 30px;
  font-weight: bold}

p {margin-left: 40px;}
a {color: var(--hyperlien); text-decoration:none}
a:hover {text-decoration:underline}

#contenu {width: min(60%, 900px);
  padding:30px 0px;
  margin: 0 auto}

.separateur {
  width: 100%;
  height: 1px;
  border: none;
  background-color: color-mix(in srgb, var(--text) 15%, transparent);
  margin: 40px auto}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid
  color-mix(in srgb, var(--text) 12%, transparent);
  background:var(--entete);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 100;
  margin: 0px -100px;
  padding: 40px 100px;
  width: 100%}

.reglages {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 18px;
  border-left: 1px solid color-mix(in srgb, var(--text) 10%, transparent)}

#boutonTheme {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  aspect-ratio: 1;
  border: none;
  border-radius: 10px;
  background: color-mix(in srgb, var(--text) 5%, transparent);
  font-size:20px;
  color: var(--text);
  cursor: pointer}
#boutonTheme:hover {background: color-mix(in srgb, var(--text) 15%, transparent)}

.lang {
  padding: 6px 10px;
  border-radius: 8px;
  text-decoration: none;
  background: color-mix(in srgb, var(--text) 5%, transparent);
  color: var(--text)}
.lang:hover {background: color-mix(in srgb, var(--text) 10%, transparent)}
.lang.active {background: color-mix(in srgb, var(--text) 15%, transparent)}