/* ---- RESET / BASE ---- */
* {
  margin: 0; 
  padding: 0; 
  box-sizing: border-box;
}
html {
  font-size: 16px;
  font-family: "Open Sans", Arial, sans-serif;
  color: #333;
  background-color: #fafafa;
  line-height: 1.5;
}
body {
  margin: 0 auto;
  max-width: 900px;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
  padding-bottom: 2rem;
}

/* ---- HEADER ---- */
header {
  background: #fefefe;
  padding: 1rem;
  border-bottom: 1px solid #ececec;
}
.header-container {
  text-align: center;
}
header h1 {
  font-family: "Merriweather", Georgia, serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.sous-titre {
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 1rem;
  font-style: italic;
}

/* ---- NAV ---- */
nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
}
nav ul li {
  margin: 0 1rem;
}
nav a {
  text-decoration: none;
  color: #333;
  font-weight: bold;
  transition: color 0.2s;
}
nav a:hover {
  color: #999;
}

/* ---- MAIN ---- */
main {
  padding: 1.5rem;
}
.intro {
  margin-bottom: 1.5rem;
}
.intro h2 {
  font-family: "Merriweather", Georgia, serif;
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
}
.intro p {
  margin-bottom: 1rem;
  text-align: justify;
}

/* ---- FOOTER ---- */
footer {
  text-align: center;
  border-top: 1px solid #ececec;
  padding: 1rem;
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #666;
}