body {
    background-color: #f0f2f5;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.card {
    border-radius: 12px;
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.btn {
    border-radius: 8px;
    font-weight: 500;
}

@media print {
    .no-print { display: none !important; }
    .navbar { display: none !important; }
    .result-container { margin-top: 0 !important; }
}

/* Animasi loading */
@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}
.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Responsive */
@media (max-width: 768px) {
    .result-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .exam-header .timer {
        font-size: 1.5rem;
    }
    .result-score {
        font-size: 3rem;
    }
}