body {
    background-color: skyblue;
}

.card-header {
    border-bottom: 3px solid #0d6efd;
}
.form-label {
    color: #495057;
    margin-bottom: 0.5rem;
}
.form-control:focus,
.form-select:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}
.btn-lg {
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}
.btn-lg:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}