/* Couleurs principales */
:root {
  --primary: #006d77; /* bleu pétrole */
  --secondary: #83c5be; /* bleu clair */
  --dark: #2c3e50;
  --light: #f9f9f9;
  --white: #fff;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background: var(--light);
  color: var(--dark);
}

h1, h2, h3 {
  margin-bottom: 10px;
}

a {
  color: var(--primary);
  text-decoration: none;
}

header.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 30px;
  background: var(--primary);
  color: var(--white);
}

header .logo {
  font-size: 1.5em;
  font-weight: bold;
}

header nav a {
  margin: 0 10px;
  color: var(--white);
}

.hero {
  height: 80vh;
  background: url('assets/hero.jpg') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
}

.btn-primary {
  background: var(--secondary);
  color: var(--dark);
  padding: 10px 20px;
  margin-top: 20px;
  display: inline-block;
  border-radius: 15px;
}

.section {
  padding: 50px 20px;
  text-align: center;
}

.section.dark {
  background: var(--primary);
  color: var(--white);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
  margin-top: 20px;
}

.skill {
  background: var(--secondary);
  color: var(--dark);
  padding: 15px;
  border-radius: 5px;
}

.project {
  margin: 20px auto;
  max-width: 600px;
  background: var(--white);
  border: 1px solid #ddd;
  border-radius: 5px;
  overflow: hidden;
}

.project img {
  width: 100%;
  height: auto;
}

footer {
  background: var(--dark);
  color: var(--white);
  text-align: center;
  padding: 15px;
}