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

body {
    background-color: #f7fafc;
    width: 1000px;
    margin: auto;
    font-family: 'Montserrat', sans-serif;
}

/* Partie 1 : Header */
header {
    display: flex;
    align-items: center;
}

.logo {
    display: inline-block;
    font-size: 2em;
    font-weight: bold;
    color: #4299e1;
    padding: 20px;
}

nav {
    display: inline-block;
    width: 900px;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: flex-end;
    gap: 30px;
}

nav a {
    text-decoration: none;
    color: #000;
    padding: 5px 10px;
    transition: all 0.3s;
}

nav a:hover {
    text-transform: uppercase;
    border: 3px solid blue;
    color: #760001;
}

/* Partie 2 : Bannière */
.banniere {
    height: 200px;
    background-image: url('https://images.unsplash.com/photo-1557683316-973673baf926?w=1000');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
}

.banniere p {
    background-color: rgba(255, 105, 97, 0.8);
    color: white;
    padding: 15px 30px;
    font-size: 1.2em;
}

.banniere a {
    color: white;
    text-decoration: underline;
}

/* Partie 3 : Section */
.contenu {
    display: flex;
    margin-bottom: 30px;
}

section h2 {
    font-size: 1.3em;
    margin-bottom: 15px;
    color: #4299e1;
}

article {
    width: 600px;
    margin-right: 65px;
}

article p {
    margin-bottom: 15px;
    line-height: 1.6;
    text-align: justify;
}

aside {
    width: 300px;
    background-color: #706b64;
    padding: 20px;
    color: white;
}

aside h3 {
    text-align: center;
    margin-bottom: 15px;
}

aside img {
    width: 100%;
    margin-bottom: 15px;
}

aside p {
    font-size: 0.9em;
    line-height: 1.4;
    text-align: justify;
}

/* Partie 4 : Footer */
footer {
    border-top: 2px solid #ccc;
    padding: 30px 0;
    display: flex;
    justify-content: space-between;
}

footer div {
    width: 300px;
    margin-right: 15px;
}

footer h4 {
    margin-bottom: 10px;
    font-size: 1.1em;
}

footer ul {
    list-style: none;
}

footer li {
    margin-bottom: 5px;
}

footer a {
    text-decoration: none;
    color: #4299e1;
}

.copyright {
    text-align: center;
    margin-top: 20px;
    color: #999;
    font-size: 0.9em;
}