/* app.css - Styling tambahan di luar Bootstrap 5 default */

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

.navbar-brand {
    letter-spacing: -0.5px;
}

/* Transisi halus saat toggle dark mode */
body, .card, .navbar, footer {
    transition: background-color 0.2s ease, color 0.2s ease;
}

[data-bs-theme="dark"] .bg-primary-subtle {
    background-color: rgba(13, 110, 253, 0.15) !important;
}

/* Footer dengan gradasi biru navy — dipakai sebagai pengganti bg-dark
   Bootstrap default (#212529) yang terlalu terlihat hitam. */
.footer-brand {
    background: linear-gradient(135deg, #0b3d91 0%, #0d6efd 100%);
}
.exam-timer {
    font-variant-numeric: tabular-nums;
    font-weight: 700;
}

.exam-timer.text-danger {
    animation: pulse-warning 1s infinite;
}

@keyframes pulse-warning {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}