@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --line: #aebed0;
    --date: #d2e0f0;
    --point: #8c9daf;
    --bg-hover: #cedce2;
    --point-hover: #ff00ff;
    --font-color: #18181b;
    --title-color: #a14cb3;
    --font-size: 20px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171e26;
    --line: #374351;
    --date: #242e38;
    --point: #515f70;
    --bg-hover: #071f2a;
    --point-hover: #ff00ff;
    --font-color: #a1a1aa;
    --title-color: #a25add;
    --font-size: 20px;
  }
}

html {
  background-color: var(--bg);
  font-family: "Segoe UI", Arial, sans-serif, "Segoe UI Emoji",
    "Segoe UI Symbol";
}

/* Title of page */
h1 {
  color: var(--font-color);
  text-transform: uppercase;
  letter-spacing: 0.3cap;
}

h2,
p {
  margin: 0px;
}

h1,
footer {
  text-align: center;
  font-size: calc(var(--font-size) * 2);
}

footer > * {
  color: var(--font-color);
  font-weight: bold;
  text-decoration: none;
  font-size: calc(var(--font-size) / 1.5);
  text-transform: uppercase;
  opacity: 0.7;
  letter-spacing: 0.15rem;
}
footer > *::before {
  content: "> ";
}

a:hover {
  color: var(--title-color);
}

.timeline {
  box-sizing: border-box;
  width: 800px;
  color: var(--font-color);
  padding: 30px 20px;
  display: flex;
  width: 100%;
  justify-content: center;
}

/* Barre */
.timeline ul {
  list-style-type: none;
  border-left: 2px solid var(--line);
  padding: 0px 5px;
}

/* Card */
.timeline ul li {
  padding: 20px 20px;
  position: relative;
  cursor: pointer;
  transition: 0.5s;
}

/* Dates */
.timeline ul li span {
  display: inline-block;
  background-color: var(--date);
  border-radius: 25px;
  padding: 2px 8px;
  font-size: calc(var(--font-size) - 2px);
}

/* Titles */
.timeline ul li .content h2 > a {
  color: var(--title-color);
  font-size: var(--font-size);
  padding-top: 5px;
  text-decoration: none;
}

/* Descriptions */
.timeline ul li .content p {
  padding: 5px 0px 15px 0px;
  font-size: calc(var(--font-size) - 2px);
}

/* Points côté */
.timeline ul li:before {
  position: absolute;
  content: "";
  width: 10px;
  height: 10px;
  background-color: var(--point);
  border-radius: 50%;
  left: -11px;
  top: 59px;
  transition: 0.2s;
}

/* Card hover */
.timeline ul li:hover {
  background-color: var(--bg-hover);
}

/* Point côté hover */
.timeline ul li:hover:before {
  background-color: var(--point-hover);
  box-shadow: 0px 0px 10px 2px var(--point-hover);
}

@media only screen and (max-width: 300px) {
  .timeline {
    padding: 30px 5px 30px 10px;
  }
  .timeline ul li .content h2 > a {
    color: var(--title-color);
    font-size: calc(var(--font-size) - 2px);
  }
}