.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 1rem;
    padding: 1.5rem;
}

.select-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.btn {
    background: #2563eb;
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 4px;
    width: 100%;
    cursor: pointer;
    font-weight: bold;
}

.btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.hidden {
    display: none;
}