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

body {
    font-family: Arial, sans-serif;
    background-color: #E1F0DA;
    background-image: url(green1.jpg);
}

header { 
    background-color: #4F6F52;
    color: #fff;
    padding: 15px;
    text-align: right; 
    font-weight: bold;
}

nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 50px ;
    font-weight: bold;
}

    .active {
    background-color: #416D19; 
    color: #fff; 
}

nav a:not(.active):hover {
    background-color: #A4CE95; 
}   

.wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    text-align: center;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5); 
    margin-bottom: 10px;
    
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start; 
    max-width: 100%;

}

.box {
    background-color: #f9f9f9;
    border-radius: 10px;
    margin: 10px;
    padding: 20px;
    width: 260px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2); 

}

h3 {
    text-align: center;
}

.box img {
    display: block;
    margin: 0 auto 20px;
    max-width: 100%;
    border-radius: 5px;
}

p {
    font-size: 14px;
}

.btn {
    display: block;
    background-color: #007bff;
    color: #fff;
    text-align: center;
    padding: 10px;
    border-radius: 5px;
    text-decoration: none;
    margin-top: 10px;
}

.btn:hover {
    background-color: #0056b3;
}


@media (max-width: 820px) {
      nav {
        flex-direction: column;
        text-align: center;
    }

    nav a {
        margin: 1px;
    }

    .container {
        flex-direction: column;
        align-items: center; 
    }

    .box {
        margin-bottom: 20px;
    }
}