body {
    font-family: Arial, sans-serif;
    background-color: #121212;
    color: #ffffff;
    margin: 0;
    padding: 0;
}

.main-header {
    background-color: #1e1e1e;
    padding: 20px;
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
    position: relative;
}

nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    margin: 0;
}

nav li {
    margin: 0 15px;
}

nav a {
    text-decoration: none;
    color: #ffffff;
    font-size: 18px;
}

nav a:hover {
    color: #0099ff;
}

.footer {
    background-color: #1e1e1e;
    padding: 20px;
    text-align: center;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
}

.footer h1 {
    margin: 0;
    font-size: 24px;
}

.footer .colorful {
    background: linear-gradient(to right, red, orange, yellow, green, blue, indigo, violet);
    -webkit-background-clip: text;
    color: transparent;
}

#donasi-container {
    max-width: 600px;
    margin: 50px auto;
    text-align: center;
}

.qris-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 10px;
}

@media (max-width: 600px) {
    body {
        padding: 10px;
    }

    .main-header, .footer {
        padding: 10px;
    }

    .footer h1 {
        font-size: 18px;
    }
}