body {
    background-color: #f8f9fa;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
}

.question-card {
    border-left-width: 4px;
}

.question-card.border-success {
    border-left-color: #198754 !important;
}

.question-card.border-danger {
    border-left-color: #dc3545 !important;
}

.form-check-input:checked {
    background-color: #198754;
    border-color: #198754;
}

.card-header {
    font-size: 0.95rem;
}

.table th {
    white-space: nowrap;
}

footer {
    font-size: 0.85rem;
}