body {
    font-family: 'Arial', sans-serif;
    background-color: #121212;
    color: #fff;
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header, footer {
    text-align: center;
    padding: 1em;
    background-color: #333;
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-details {
    background: rgba(0, 0, 0, 0.7);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.app-details img {
    max-width: 100px;
    margin-bottom: 20px;
}

.app-details table {
    margin: 20px auto;
    border-collapse: collapse;
    width: 100%;
    max-width: 400px;
}

.app-details table, .app-details td, .app-details th {
    border: 1px solid #444;
}

.app-details td, .app-details th {
    padding: 10px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    margin: 10px 5px;
    text-decoration: none;
    color: #fff;
    background-color: #007bff;
    border-radius: 5px;
    transition: background-color 0.3s;
}

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

.btn-secondary {
    background-color: #6c757d;
}

.btn-secondary:hover {
    background-color: #565e64;
}

.btn-download {
    background-color: #f90; /* Initial color */
    color: #fff; /* Text color */
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    transition: background-color 0.3s; /* Added transition */
}

.btn-download:hover {
    background-color: #f90; /* Lighter orange on hover */
}

.btn-download:active {
    background-color: blue; /* Blue on click */
}