/* Timer countdown */
.timer-countdown {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    padding: 10px 20px;
    border-radius: 10px;
    background: #28a745;
    color: white;
}
.timer-countdown.warning {
    background: #ffc107;
    color: #212529;
}
.timer-countdown.danger {
    background: #dc3545;
    animation: pulse 1s infinite;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Score display */
.score-display {
    font-size: 4rem;
    font-weight: bold;
    text-align: center;
}
.score-display.success { color: #28a745; }
.score-display.warning { color: #ffc107; }
.score-display.danger { color: #dc3545; }

/* Quiz navigation */
.quiz-nav-item {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    cursor: pointer;
    margin: 3px;
    font-weight: bold;
    border: 1px solid #dee2e6;
    transition: all 0.2s;
}
.quiz-nav-item.active {
    background: #007bff;
    color: white;
    border-color: #007bff;
}
.quiz-nav-item.answered {
    background: #28a745;
    color: white;
    border-color: #28a745;
}
.quiz-nav-item:hover {
    background: #6c757d;
    color: white;
}

/* Login page */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Print styles */
@media print {
    .no-print { display: none !important; }
    .content-wrapper { margin-left: 0 !important; }
    .main-header, .main-sidebar, .main-footer { display: none !important; }
}