@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono&display=swap");
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@700&display=swap");
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@500&display=swap");

:root {
  --bg-color: rgb(23, 23, 23);
  --text-color: rgb(209, 209, 209);
  --accent-color: #abaaed;
}

/* réinitialisation des styles par défaut */
* {
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  font-size: 100%;
  vertical-align: baseline;
  background: transparent;
  text-decoration: none;
}

ul {
  list-style: none;
}

.underline,
a {
  color: var(--accent-color);
  position: relative;
  width: fit-content;
}

.underline::before,
a::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 3px;
  border-radius: 4px;
  background-color: var(--accent-color);
  bottom: -2px;
  left: 0;
  transform-origin: right;
  transform: scaleX(0);
  transition: transform 0.3s ease-in-out;
}

.underline:hover::before,
a:hover::before {
  transform-origin: left;
  transform: scaleX(1);
}

.box {
  border: 4px solid var(--text-color);
  padding: 3% 4%;
  margin: 3rem 0;
  border-radius: 15px;
}

.wrap-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* style de la page */
/* header */

html {
  scroll-behavior: smooth;
}

body {
  font-family: "IBM Plex Mono", monospace;
  background-color: var(--bg-color);
  color: var(--text-color);

  max-width: 1500px;
  margin: 0 auto;
  padding: 0 3%;
}

header {
  display: flex;
  justify-content: space-between;
  position: sticky;
  top: 0;
  left: 0;
  background-color: var(--bg-color);
  z-index: 1;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 1rem 0;
}

header nav {
  margin: 1rem 0;
}

header nav ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

header nav ul li {
  margin: 0 3rem;
  font-weight: 700;
  font-size: 1.3rem;
}

/* main */

section {
  padding-top: 5%;
}

section:last-child {
  padding-bottom: 5%;
}

/* section #home */

h2::before {
  content: ">_";
  font-weight: 700;
  font-size: 2.3rem;
  margin-right: 1rem;
}

h2 {
  margin: 2rem 4%;
  font-size: 2rem;
  font-weight: 500;
}

#home ul {
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex-wrap: wrap;
}

#home ul li {
  margin: 1% 0;
}

/* section #projets */

.frise {
  margin: 4rem auto;
}

.frise-element {
  padding-bottom: 2.5rem;
  /* bordure qui créer la ligne */
  border-left: 3px solid var(--accent-color);
  position: relative;
  padding-left: 20px;
  margin-left: 10px;
}

/* supprime la bordure du dernier élément */
.frise > .frise-element:last-child {
  border-color: transparent;
}

/* creation du point */
.frise-element::before {
  content: "";
  position: absolute;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background: var(--accent-color);
  left: -12px;
  top: 0;
}

.date {
  /* color: var(--accent-color); */
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.doc::before {
  content: "⇒";
  position: relative;
  margin-right: 0.5rem;
}

.doc {
  font-size: 0.8rem;
  margin-left: 1.5rem;
}

.frise-element ul {
  margin-left: 20px;
}

.frise-element li::before {
  content: ">";
  position: relative;
}

.frise-element li {
  margin: 0.5rem 0;
}

/* section #contact */

#contact ul {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

#contact a {
  text-decoration: none;
  color: var(--accent-color);
}

/* responsive design */

@media only screen and (max-width: 750px) {
  #contact ul {
    flex-direction: column;
    align-items: center;
  }

  #contact ul li {
    margin: 0.7rem 0;
  }
}

/* smartphone */
@media only screen and (max-width: 750px) {
  header nav {
    display: none;
  }

  /* section {
    padding-top: 6rem;
  }

  .box,
  #contact ul {
    flex-direction: column;
    align-items: left;
    padding: 2rem 2rem;
    margin: 3rem 0;
  }

  #contact ul li,
  .box div {
    margin: 1rem 0;
  }

  section h2 {
    margin: 1rem 0;
  } */
}

/* animation fade-in pour les éléments qui apparaissent au scroll */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* animation slide-in-left pour les éléments qui apparaissent en glissant depuis la gauche */
.slide-in-left {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* animation slide-in-right pour les éléments qui apparaissent en glissant depuis la droite */
.slide-in-right {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}