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

h1 {
    color: #343a40;
}

.table {
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 15px;
}

.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
    color: #fff;
    transition: background-color 0.3s ease;
    border-radius: 15px;
}

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

@keyframes shadow-pulse {
    0% {
        box-shadow: 0 0 0 0px rgba(0, 0, 255, 0.2);
    }

    100% {
        box-shadow: 0 0 0 15px rgba(0, 0, 255, 0);
    }
}

.android-image {
    animation: shadow-pulse 1s infinite;
    display: block;
    max-width: 30%;
    height: 30%;
    margin: 0 auto;
    border-radius: 15px;
}