* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}
body {
    background-color: #f5efed;
}
header {
    background-color: #75b728;
    padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}
header img {
    height: 70px;
}
h1 {
    color: white;
    font-size: 28px;
}
nav a {
    color: #fff;
    text-decoration: none;
    font-size:17px;
    padding:6px 12px;
    background:#c41b28;
    border-radius:4px;
}
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}
section {
    margin-bottom: 45px;
    padding-bottom:20px;
    border-bottom: 1px solid #75b728;
}
h2 {
    color: #c41b28;
    margin-bottom:18px;
    font-size:23px;
}
h3 {
    color:#75b728;
    margin:14px 0 8px;
}
p {
    line-height:1.6;
    margin-bottom:12px;
}
.img-produit {
    width: 280px;
    margin:10px 0;
}
footer {
    background:#75b728;
    color:white;
    text-align:center;
    padding:20px;
}
form{
    border:1px solid #75b728;
    padding:25px;
    max-width:500px;
    border-radius:6px;
}
.form-item{
    margin:15px 0;
}
input[type="text"]{
    padding:7px;
    width:100%;
    margin-top:5px;
}
input[type="submit"]{
    background:#75b728;
    color:white;
    border:none;
    padding:9px 20px;
    cursor:pointer;
}
.picto-footer{
    text-align:center;
    padding:20px 0;
}
.picto-footer img{
    width:200px;
}
@media(max-width:768px){
    header{flex-direction:column;text-align:center;}
    .img-produit{width:100%;}
}