:root {
  --cg-color-neutral-100: rgba(249, 249, 249, 1);
  --cg-color-neutral-60-opacity: rgba(255, 255, 255, 0.25);
  --cg-color-neutral-10: rgba(0, 0, 0, 1);
  --cg-color-neutral-10-opacity: rgba(0, 0, 0, 0.25);
  --cg-color-blue-90: rgba(4, 56, 97, 1);
  --cg-color-blue-75: rgba(5, 67, 116, 1);
  --cg-color-blue-60: rgba(3, 85, 161, 1);
  --cg-color-blue-60-opacity: rgba(0, 90, 163, 0.25);
  --cg-color-blue-25: rgba(196, 229, 255, 1);
  --cg-color-blue-10: rgba(217, 235, 249, 1);

  --cg-spacing-0: 0;
  --cg-spacing-2: 2px;
  --cg-spacing-4: 4px;
  --cg-spacing-8: 8px;
  --cg-spacing-16: 16px;
  --cg-spacing-24: 24px;
  --cg-spacing-32: 32px;
  --cg-spacing-40: 40px;
  --cg-spacing-48: 48px;
}

*, *::before, *::after { 
  -moz-box-sizing: border-box; 
  -webkit-box-sizing: border-box; 
  box-sizing: border-box;
  scroll-behavior: smooth;
}

html {
  height: auto;
  overflow-y: auto;
}

html, body {
  display: flex;
  flex-direction: column;
}

body {
  font-family: "Hanken Grotesk", "Helvetica Neue", Arial, sans-serif;
  font-optical-sizing: auto;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 1.4rem;
  width: 100%;
  height: 100%;
  min-height: 100vh;
  transition: 0.3s;
  overflow-x: hidden;
}

/* Switch couleurs */
body.projets-mode {
  background-color: var(--cg-color-neutral-100);
  color: var(--cg-color-blue-60);
}
body.informations-mode {
  background-color: var(--cg-color-blue-60);
  color: var(--cg-color-neutral-100);
}
body.projets-mode a, body.projets-mode a:hover, body.projets-mode h2, body.projets-mode h2:hover, #btn-projets.active {
  color: var(--cg-color-blue-60);
}
body.informations-mode a, body.informations-mode a:hover, body.informations-mode h2, body.informations-mode h2:hover, #btn-informations.active, .description-content a, .description-content a:hover {
  color: var(--cg-color-neutral-100);
}

/* Général */
h1 {
  opacity: 0;
  height: 0;
}

a {
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
a:active {
  color: var(--cg-color-blue-10);
}

hr {
  width: 100%;
  margin: 0;
}
body.projets-mode hr{
  color: var(--cg-color-blue-60-opacity);
}
body.informations-mode hr{
  color: var(--cg-color-neutral-60-opacity);
}
ul {
  display: flex;
  flex-direction: column;
  gap: var(--cg-spacing-8);
  padding-left: var(--cg-spacing-16);
}

/* Navigation A11é */
.skiplinks {
  position: absolute;
  top: 0;
  transform: translateY(-100%);
  margin: var(--cg-spacing-24) var(--cg-spacing-24) 0 var(--cg-spacing-24);
  padding-bottom: var(--cg-spacing-24);
  border-bottom: var(--cg-color-blue-10);
  opacity: 0;
}
.skiplinks:focus-within {
  opacity: 1;
  position: relative;
  transform: translateY(0);
}

/* Header */
.header {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--cg-spacing-16);
  width: 100%;
  padding: var(--cg-spacing-24);
  transition: 0.3s;
  overflow: hidden;
}
.header .initial {
  width: 100%;
}
.header .initial svg {
  left: 0;
  top: 0;
  width: 100%;
}
.main #projects[aria-hidden="true"],
.main #informations[aria-hidden="true"] {
  display: none;
}
h2 {
  font-family: "Hanken Grotesk", "Helvetica Neue", Arial, sans-serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-weight: 400;
  line-height: 1.2rem;
  color: var(--cg-color-blue-60);
}
h2:hover {
  cursor: pointer;
}
h2:active {
  text-decoration: underline;
  color: var(--cg-color-blue-60);
}
.header .nav-bar {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  gap: var(--cg-spacing-16);
}
.header .nav-bar-link {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  gap: var(--cg-spacing-24);
}

.header .nav-bar-link-buttons {
  display: flex;
  flex-direction: row;
  gap: var(--cg-spacing-8);
  padding: 0;
  list-style-position: inside;
  list-style: none;
}
.nav-bar-link-buttons #btn-projets, .nav-bar-link-buttons #btn-informations {
  background: none;
  padding: var(--cg-spacing-4) var(--cg-spacing-8);
  border-radius: var(--cg-spacing-4);
  border: none;
}

button:hover, #btn-projets.active, #btn-informations:hover {
  background: var(--cg-color-blue-10);
  cursor: pointer;
}
#btn-projets.active:hover {
  background: var(--cg-color-blue-25);
}
#btn-projets:hover, #btn-informations.active {
  background: var(--cg-color-blue-75);
}
.image-buttons .previous-carousel-button:hover,
.image-buttons .next-carousel-button:hover {
  cursor: ew-resize;
}
#btn-informations.active:hover {
  background: var(--cg-color-blue-90);
}

.nav-bar-link-contact {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--cg-spacing-16);
  flex-wrap: wrap;
}
.nav-bar-link-contact .contact-button {
  display: none;
  height: 0;
}

/* Container */
.main {
  flex: 1 1 auto;
  display: flex;
  flex-direction: row;
  align-items: flex-start;  
  width: 100%;
  padding: 0 var(--cg-spacing-24);
  transition: 0.3s;
  overflow-y: auto;
}

/* Projets */
.main #projects.active {
  display: flex !important;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--cg-spacing-48);
  align-self: stretch;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
}
.main #projects .item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--cg-spacing-16);
  align-self: stretch;
  width: 100%;
}
#projects .item .item-content {
  display: flex;
  align-items: flex-start;
  gap: var(--cg-spacing-16);
  align-self: stretch;
  /* padding-right: var(--cg-spacing-8); */
}
.item-content .content-info-left {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--cg-spacing-8);
  width: 100%;
}
.content-info-right .close-button {
  display: none;
}
h3 {
  font-weight: 700;
  text-transform: uppercase;
}
.item-content .content-info-right {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--cg-spacing-16);
}
.open-button {
  display: inline-block;
}
.close-button {
  display: none;
}
.toggle-button {
  font-family: monospace;
  width: 2ch;
  height: 1.2rem;
  text-align: center;
  font-size: 1.2rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--cg-spacing-8);
  border-radius: var(--cg-spacing-4);
  border: none;
  background: none;
  cursor: pointer;
  color: var(--cg-color-blue-60);
  transition: 0.3s;
}

#projects .item .item-image {
  position: relative;
  background: var(--cg-color-blue-60);
  width: 100%;
  /*height: 100%;*/
  transition: 0.3s;
  cursor: pointer;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.item-image .image-buttons {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transform: translateY(-50%);
  padding: 0 var(--cg-spacing-32);
  opacity: 1;
  /* mix-blend-mode: difference; */
  pointer-events: auto;
  z-index: 2;
}
.item-image .carousel-track, .item-image .image-buttons {
  transition: opacity 0.3s ease;
}
.image-buttons .previous-carousel-button, .image-buttons .next-carousel-button {
  color: var(--cg-color-neutral-100);
  font-size: 2rem;
  background: none;
  padding: var(--cg-spacing-4) var(--cg-spacing-8);
  border-radius: var(--cg-spacing-4);
  border: none;
  text-align: center;
  pointer-events: auto;
  cursor: pointer;
  transition: 0.3s;
}
.previous-carousel-button:active, .next-carousel-button:active, .close-button:active {
  font-size: 2rem;
}
.carousel-track {
  display: flex;
  height: 100%;
  transition: transform 0.6s ease-in-out;
  will-change: transform;
  aspect-ratio: 16/9;
}
.carousel-track img {
  width: 100%;
  object-fit: cover;
  flex-shrink: 0;
  aspect-ratio: 16/9;
}
#project-1 {
  background: url("../img/Projets/g1_01.png") no-repeat center center;
}
#project-2 {
  background: url("../img/Projets/g2_01.png") no-repeat center center;
}
#project-3 {
  background: url("../img/Projets/g3_01.png") no-repeat center center;
}
#project-4 {
  background: url("../img/Projets/g4_01.png") no-repeat center center;
}
#project-5 {
  background: url("../img/Projets/g5_01.png") no-repeat center center;
}
#project-6 {
  background: url("../img/Projets/g6_01.png") no-repeat center center;
}
#project-7 {
  background: url("../img/Projets/g7_01.png") no-repeat center center;
}
#project-8 {
  background: url("../img/Projets/g8_01.png") no-repeat center center;
}
#project-9 {
  background: url("../img/Projets/g9_01.png") no-repeat center center;
}
#project-1, #project-2, #project-3, #project-4, #project-5, #project-6, #project-7, #project-8, #project-9 {
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  aspect-ratio: 16/9;
}
.item-image .image-content {
  display: none;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--cg-spacing-24);
  width: 100%;
  padding: var(--cg-spacing-24);
  color: var(--cg-color-neutral-100);
  transition: 0.3s;
}
.item-image .image-content.active {
  display: flex;
  height: 100%;
  overflow: auto;
}
.item-image .image-content.active ~ .carousel-track,
.item-image .image-content.active ~ .image-buttons {
  display: none;
}
.item-image .image-content.active ~ .carousel-track img {
  display: none;
}
.item-image .image-content.active + .open-button,
.item-image .image-content.active ~ .open-button {
  display: none;
}
.item-image .image-content.active ~ .close-button,
.item-image .image-content.active + .close-button {
  display: inline-block;
}
.item-image .image-content.active ~ .content-info-right .close-button {
  display: inline-block;
}
.item-image .image-content.active {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
}
.image-content-text {
  flex: 1 0 0;
}

/* Informations */
.main #informations.active {  
  display: flex !important;
  flex-direction: row;
  align-items: flex-start;
  align-self: stretch;
  gap: var(--cg-spacing-24);
  width: 100%;
  height: 100%;
}
.description-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  /* gap: var(--cg-spacing-8); */
  flex: 1 0 0;
}
.description-content ul li {
  height: auto;
}

/* Footer */
.footer {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--cg-spacing-16);
  width: 100vw;
  padding: var(--cg-spacing-24);
}
.footer .footer-content {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--cg-spacing-16);
  width: 100%;
}
.footer-content .credits {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--cg-spacing-16);
}

/* Responsive */
@media screen and (max-width: 864px) {
  .header .nav-bar {
    gap: var(--cg-spacing-8);
  }
  .header .nav-bar-link {
    position: relative;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--cg-spacing-8);
  }
  .nav-bar-link-contact a {
    display: none;
  }
  .nav-bar-link-contact .contact-button {
    display: block;
  }
  .nav-bar-link-contact a.button-mobile-link-contact {
    float: right;
    display: block;
  }
  .nav-bar-link-contact.responsive {
    width: 100%;
    justify-content: flex-end;
    gap: var(--cg-spacing-8);
    padding-bottom: var(--cg-spacing-8);
  }
  .nav-bar-link-contact .button-mobile-link-contact {
    position: absolute;
    right: 0;
    top: 0;
    padding: var(--cg-spacing-2) var(--cg-spacing-4);
  }
  .nav-bar-link-contact .button-mobile-link-contact::after {
    content: " ↓";
  }
  .nav-bar-link-contact.responsive .button-mobile-link-contact {
    position: absolute;
    right: 0;
    top: 0;
  }
  .nav-bar-link-contact.responsive .button-mobile-link-contact::after {
    content: " ↑";
  }
  .nav-bar-link-contact.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
}
@media screen and (max-width: 768px) {
  .main #informations.active {
    flex-direction: column;
  }
  .item-content .content-info-left {
    flex-direction: column;
  }
  .item-image .image-content.active {
    flex-direction: column;
  }
}
@media screen and (max-width: 375px) {
  .body {
    font-size: 1.25rem;
  }
  .header, footer.footer {
    padding: var(--cg-spacing-16);
  }
  .main {
    padding: 0 var(--cg-spacing-16);
  }
}