body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    background: linear-gradient(to right, #667eea, #764ba2);
    color: white;
}

/* MENU */
nav {
    background: rgba(0,0,0,0.3);
    padding: 15px;
    position: sticky;
    top: 0;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
}

nav ul li {
    margin: 0 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
}

nav ul li a:hover {
    color: #ffd700;
}

/* CONTENU */
h1 {
    text-align: center;
    margin-top: 40px;
    animation: fadeIn 1s ease-in;
}

p {
    text-align: center;
    font-size: 18px;
    max-width: 600px;
    margin: auto;
}

/* BOUTON */
button {
    display: block;
    margin: 20px auto;
    padding: 12px 25px;
    border: none;
    background: #ffd700;
    color: black;
    font-weight: bold;
    cursor: pointer;
    border-radius: 20px;
    transition: 0.3s;
}

button:hover {
    transform: scale(1.1);
}

/* FORMULAIRE */
form {
    background: white;
    color: black;
    max-width: 400px;
    margin: 30px auto;
    padding: 20px;
    border-radius: 15px;
}

input {
   width: 90%;
    max-width: 300px;
    padding: 10px;
    margin: 10px auto;
    display: block;
    border-radius: 8px;
    border: 1px solid #ccc;
}

/* ANIMATION */
@keyframes fadeIn {
    from {opacity: 0;}
    to {opacity: 1;}
}
.photo {
    text-align: center;
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-top: 20px;
    width: 200px;
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(0,0,0,0.3);
    transition: 0.3s;
}
.photo:hover {
    transform: scale(1.7);
    box-shadow: 0 0 25px rgba(0,0,0,0.6);
}

.link-btn {
    text-decoration: none;
}