/* Custom animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

.pulse-loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Progress indicator styles */
.progress-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.progress-dot.current {
    transform: scale(1.2);
}

.progress-dot.answered {
    background-color: #10B981;
}

.progress-dot.unanswered {
    background-color: #E5E7EB;
}

/* Test interface enhancements */
.test-option {
    transition: all 0.2s ease;
}

.test-option:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.test-option.selected {
    border-color: #4F46E5;
    background-color: #EEF2FF;
}

/* Results chart container */
.chart-container {
    position: relative;
    height: 250px;
    width: 100%;
}

/* Loading states */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .test-interface-controls {
        flex-direction: column;
        gap: 1rem;
    }
    
    .test-interface-controls > * {
        width: 100%;
        text-align: center;
    }
}

/* Print styles for PDF generation */
@media print {
    .no-print {
        display: none !important;
    }
    
    .print-break {
        page-break-after: always;
    }
}