body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
}

header {
    background-color: #343a40;
    color: #fff;
    text-align: center;
    padding: 20px;
}

nav {
    background-color: #495057;
    padding: 10px;
    text-align: center;
}

nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
}

 header a {
    color: #fff;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
}

section {
    padding: 20px;
    background-color: #fff;
    margin: 20px 0;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);

}

section h2 {
    color: #343a40;
}


section div {
    display: flex;
    flex-wrap: wrap;
}

section div img {
    max-width: 250px;
    max-height: 250px;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 8px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

footer {
    background-color: #343a40;
    color: #fff;
    text-align: center;
    padding: 5px;
    bottom: 0;
    width: 100%;
}

button {
    display: block;
    margin: 20px auto;
    padding: 10px 20px;
    font-size: 18px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}


.gallery div img {
cursor: pointer;
transition: transform 0.25s ease;
}


.modal {
    display: none; 
    position: fixed;
    z-index: 1; 
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto; 
    background-color: rgba(0,0,0,0.8); 
}

.modal.active {
    display: flex; 
    align-items: center;
    justify-content: center; 
}

.modal-content {
    display: block;
    max-width: 80%; 
    max-height: 80%;
    position: relative;
}

.close {
    color: #fff;
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.modal-content img {
    display: block;
    max-width: 500px;
    max-height: 500px;
    margin-top: 300px;
    position: absolute;
    top: 50%; 
    left: 50%; 
    transform: translate(-50%, -50%);
}