:root {
  --primary-color: #6D28D9;   /* Violet profond */
  --accent-color: #3B82F6;   /* Bleu clair moderne */
  --bg-color: #f4f4f4;       /* Fond clair doux */
  --text-color: #333;
  --white: #ffffff;
}


body {
transition: 1s;
font-family: 'Inter', sans-serif;
margin: 0;
padding: 0;
background-color: var(--bg-color);
color: var(--text-color);
line-height: 1.6;
}

header {
  background: linear-gradient(90deg, var(--primary-color), #5c9edf);
  color: var(--white);
  padding: 1rem 1rem;
  text-align: center;
  display: flex;
  justify-content: space-between; 
  align-items: center;
  flex-wrap: wrap;            
  text-align: left;
}

header h1 {
  margin-top: 0;
  margin-bottom: 0;
  font-size: 2.5rem;
}

section {
  padding: 2rem;
  max-width: 900px;
  margin: 2rem auto;
  background-color: var(--white);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

h2 {
  position: relative;
  display: inline-block;
  padding-left: 0.5rem;
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 0;
  height: 3px;
  background: var(--accent-color);
  transition: width 0.3s ease;
}

h2:hover::after {
  width: 100%;
}


ul.skills {
display: flex;
flex-wrap: wrap;
gap: 0.5rem;
list-style: none;
padding: 0;
}

ul.skills li {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  transition: transform 0.2s, background-color 0.3s;
}

ul.skills li:hover {
  transform: scale(1.05);
  background-color: var(--accent-color);
}


.project a {
display: inline-block;
margin-top: 1rem;
color: var(--accent-color);
text-decoration: none;
font-weight: 600;
border: 1px solid var(--accent-color);
padding: 0.4rem 1rem;
border-radius: 4px;
transition: background-color 0.3s, color 0.3s;
}

.project a:hover {
background-color: var(--accent-color);
color: var(--white);
}

.project {
    padding: 0 1rem 1rem 1rem;
    margin: 1rem 0 1rem 0;
    border-radius: 20px;
    border: 1px solid var(--accent-color);
}

footer {
background-color: #1a1a1a;
color: #ccc;
text-align: center;
padding: 1.5rem 1rem;
font-size: 0.9rem;
}

/* Bouton thème */
#theme-toggle {
  padding: 0.5rem 1rem;
  background-color: #ffffff55;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  font-size: 1rem;
  color: #222;
}

#theme-toggle:hover {
  background-color: #ffffff88;
}

/* Thème sombre */
.dark-theme {
  transition: 1s;
  background-color: #1a1a1a;
  color: #eee;
}


.dark-theme section {
  background-color: #2a2a2a;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.05);
}

.dark-theme footer {
  background-color: #111;
  color: #aaa;
}

.dark-theme a {
  color: #7db4ff;
}


@media (max-width: 600px) {
  section {
      padding: 1rem;
  }

  header h1 {
      font-size: 2rem;
  }

  ul.skills li {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
  }
}