* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    background-image: url("background3.jpg");

    background-size: cover;
}
.header{
    width: 100%;
    height: 70px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    position: sticky;
    top: 0;

    padding: 0 40px;

    background-color: #ffffff;
    opacity: 0.9;
    border-bottom: 1px solid #e5e5e5;
}

.accueil{


    display: flex;
    height: 900px;

}

.container {
  border: 2px solid rgb(255, 0, 204);
  border-radius: 0.5em;
  font: 1.2em sans-serif;

  height: 400px;
  width: 1890px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cat{
    border-radius: 0.5em;
    font: 1.2em sans-serif;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo{
    font-size: 24px;
    font-weight: bold;
    color: #222;
}

.nav{
    display: flex;
    gap: 30px; 
}

.a{

}

.nav a {
    text-decoration: none;
    color: #333;
    font-size: 16px;

    transition: color 0.2s;
}

.nav a:hover {
    color: #007bff;
}