body {
    background-color: #f8f9fa;
}
.card {
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.alert {
    margin-top: 20px;
}

.basic-whatsapp-btn {
    display: inline-block;
    background-color: #25D366;
    color: white;
    padding: 8px 15px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(37, 211, 102, 0.3);
    border: 2px solid #25D366;
}
.basic-whatsapp-btn:hover {
    background-color: #128C7E;
    color: white;
    box-shadow: 0 6px 12px rgba(37, 211, 102, 0.4);
    transform: translateY(-2px);
    border-color: #128C7E;
}
.basic-whatsapp-btn i {
    font-size: 1.2em;
    vertical-align: middle;
    margin-right: 6px;
}

/* Bronze rank badge style */
.bg-bronze {
    background-color: #cd7f32;
    color: white;
}