:root {
  --bg-color: #ffffff;
  --text-color: #1a1a1a;
  --text-secondary: #444;
  --card-bg: #EBEBEBFF;
  --card-hover: #EBEBEB90;
  --border-color: #ddd;
  --link-color: #CC0000; /* red */
  --nav-text-accent-color: #404040; /* gray */ 
  --nav-text-color: #808080; /* lightgray */
  --code-bg: #9A9A9A20;
  --code-text-color: #1a1a1a95
}

[data-theme="dark"] {
  --bg-color: #1a1a1a;
  --text-color: #e4e4e4;
  --text-secondary: #b8b8b8;
  --card-bg: #2d2d2d;
  --card-hover: #3d3d3d;
  --border-color: #444;
  --link-color: #CC3F3F; /* red */
  --nav-text-accent-color: #bebebe;
  --nav-text-color: #808080; /* lightgray */
  --code-bg: #9A9A9A20;
  --code-text-color: #e4e4e495
}


body {
  font-family: inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.1rem;
  color: var(--text-color);
  line-height: 1.6;
  max-width: 650px;
  margin: 0 auto;  
  padding: 1rem 3rem;
  background-color: var(--bg-color);
  transition: background-color 0.3s, color 0.3s;
}

/* Titres */

h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

h2 {
  margin-top: 4rem;
}

h4 {
  font-size: 1.25rem;
  font-weight: 500;
  margin: 3rem 0 1rem;
  color: var(--text-color);
}

h5 {
  font-size: 1.1rem;
  font-weight: 500;
  margin: 1.5rem 0 0.75rem;
  color: var(--text-secondary);
}

h6 {
  font-size: 1rem;
  font-weight: 500;
  margin: 1rem 0 0.5rem;
  color: var(--text-secondary);
}

/* Ancre invisible */
.anchor {
  display: none;
}

/* Paragraphes */
p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

/* Listes */
ul, ol {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

li {
  margin-bottom: 0.5rem;
}

/* Liens */
a {
  color: var(--link-color);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

a:hover {
  border-bottom-color: var(--link-color);
}

/* Citation */
blockquote {
  margin: 2rem 0;
  padding-left: 1.5rem;
  border-left: 3px solid var(--border-color);
  font-style: italic;
  color: var(--text-secondary);
}

blockquote p {
  margin-bottom: 0.5rem;
  line-height: 1.8;
}

/* Code inline */
code {
  background: var(--code-bg);
  color: var(--code-text-color);
  padding: .1rem .3rem .2rem;
  border-radius: .2rem;
  font-size: 0.85em;
}

code.classic{
  font-family: inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-style: italic;
  padding: .1rem .3rem .2rem;
  border-radius: .2rem;
  font-size: 0.9em;
}

/* HR */
hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 1.5rem 0;
}

/* Footer */
footer {
  margin-top: 10rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Header */
header {
  margin-bottom: 1rem; 
  display: flex;
  justify-content: flex-end;
}

.icon{
/*  vertical-align: text-bottom;*/
/*  vertical-align: middle; */
  vertical-align: baseline; 
  color: var(--code-text-color);
  width: 1em;  /* s'adapte à la taille du texte */
  height: 1em;
}


/* Nav bar */

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  padding: 0;
  margin: 0;
}

.nav-links a {
  background-color: var(--card-bg);
  color: var(--nav-text-color);
  padding: .2rem 1rem .3rem;
  border-radius: .2rem;
  text-decoration: none;
  border: none;
  transition: background-color 0.2s ease;
}

.nav-links a:hover {
  background-color: var(--card-hover);
  border: none;
}

.nav-links a.active {
  color: var(--nav-text-accent-color);
}


/* Switch Button */

.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 23px;
}

.switch input { 
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: 35px;
  transition: border-color 0.2s ease;
}

.slider:before {
  position: absolute;
  height: 20px;
  width: 20px;
  left: 2px;
  bottom: 1px;
  transition: left 0.1s linear, background-color 0.2s ease;
  content: "";
  background-color: var(--text-secondary);
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='currentColor' %3E%3Cpath fill-rule='evenodd' d='M10 2a1 1 0 011 1v1a1 1 0 11-2 0V3a1 1 0 011-1zm4 8a4 4 0 11-8 0 4 4 0 018 0zm-.464 4.95l.707.707a1 1 0 001.414-1.414l-.707-.707a1 1 0 00-1.414 1.414zm2.12-10.607a1 1 0 010 1.414l-.706.707a1 1 0 11-1.414-1.414l.707-.707a1 1 0 011.414 0zM17 11a1 1 0 100-2h-1a1 1 0 100 2h1zm-7 4a1 1 0 011 1v1a1 1 0 11-2 0v-1a1 1 0 011-1zM5.05 6.464A1 1 0 106.465 5.05l-.708-.707a1 1 0 00-1.414 1.414l.707.707zm1.414 8.486l-.707.707a1 1 0 01-1.414-1.414l.707-.707a1 1 0 011.414 1.414zM4 11a1 1 0 100-2H3a1 1 0 000 2h1z' clip-rule='evenodd' /%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='currentColor' %3E%3Cpath fill-rule='evenodd' d='M10 2a1 1 0 011 1v1a1 1 0 11-2 0V3a1 1 0 011-1zm4 8a4 4 0 11-8 0 4 4 0 018 0zm-.464 4.95l.707.707a1 1 0 001.414-1.414l-.707-.707a1 1 0 00-1.414 1.414zm2.12-10.607a1 1 0 010 1.414l-.706.707a1 1 0 11-1.414-1.414l.707-.707a1 1 0 011.414 0zM17 11a1 1 0 100-2h-1a1 1 0 100 2h1zm-7 4a1 1 0 011 1v1a1 1 0 11-2 0v-1a1 1 0 011-1zM5.05 6.464A1 1 0 106.465 5.05l-.708-.707a1 1 0 00-1.414 1.414l.707.707zm1.414 8.486l-.707.707a1 1 0 01-1.414-1.414l.707-.707a1 1 0 011.414 1.414zM4 11a1 1 0 100-2H3a1 1 0 000 2h1z' clip-rule='evenodd' /%3E%3C/svg%3E");
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
}

.slider:hover {
  border-color:  var(--link-color);
}

.slider:hover:before {
  background-color:  var(--link-color);
}

input:checked + .slider {
  border-color: var(--border-color);
}

input:checked + .slider:hover {
  border-color:  var(--link-color);
}

input:focus + .slider {
  box-shadow: 0 0 1px var(--border-color);
}

input:focus + .slider:hover {
  box-shadow: 0 0 1px var(--link-color);;
}

input:checked + .slider:before {
  content: "";
  transition: left 0.1s linear, background-color 0.2s ease;
  background-color: var(--text-secondary);
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor' %3E%3Cpath d='M20.354 15.354A9 9 0 018.646 3.646 9.003 9.003 0 0012 21a9.003 9.003 0 008.354-5.646z' /%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor' %3E%3Cpath d='M20.354 15.354A9 9 0 018.646 3.646 9.003 9.003 0 0012 21a9.003 9.003 0 008.354-5.646z' /%3E%3C/svg%3E");
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  left: 27px;
}

input:checked + .slider:hover:before {
  background-color: var(--link-color);
}

/* Projects */
.project {
  margin-bottom: 2rem;
}

.project-header {
  margin-bottom: 12px;
  line-height: 1.4;
}

.project-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.project-title a {
  font-weight: 600;
  text-decoration: none;
  color: var(--text-color); /*marche pas*/
}

.project-date {
  font-style: italic;
  color: var(--text-color);
}

.project-description {
  color: var(--text-color);
  opacity: 0.7;
  margin-top: -0.5rem;
  line-height: 1.5;
}

/* version mobile */
@media (max-width: 600px) {
  body {
    font-size: 0.95rem;
    padding: 0.75rem 1.2rem;
  }

  .nav-links {
    gap: 0.7rem;
  }

  .nav-links a {
    padding: .2rem 0.6rem .3rem;
    font-size: 0.85rem;
  }

  footer {
    margin-top: 5rem;
  }
}

/* TODO list

- changer de version style?v=3.css

langues:
- mettre les projets en anglais
- faire une version fr ??


plus tard
- feed rss: set up pour les articles
- setup Hugo ??
- setup Github Action css versionning ??

*/