/* Performance and Print Optimizations for FreeBudgetCalc.com */

/* Chart lazy loading optimization */
.chart-container {
    position: relative;
    height: 400px;
    margin: 20px 0;
}

.chart-container canvas {
    /* Optimize chart rendering */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: optimize-contrast;
}

/* PDF Export and Print Styles */
@media print {
    /* Hide non-essential elements when printing */
    .no-print,
    .navbar,
    .btn,
    button,
    .alert-dismissible .btn-close,
    #ttsDropdown,
    .result-actions {
        display: none !important;
    }
    
    /* Optimize page breaks */
    .calculator-results,
    .card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    /* Show print-only content */
    .print-only {
        display: block !important;
    }
    
    /* Optimize chart display for print */
    .chart-container {
        height: 300px !important;
        margin: 15px 0 !important;
    }
    
    .chart-print-fallback {
        display: none;
    }
    
    /* Ensure charts are visible in print */
    canvas {
        display: block !important;
        max-width: 100% !important;
        height: auto !important;
    }
    
    /* Typography optimizations for print */
    body {
        font-family: "Times New Roman", serif !important;
        font-size: 12pt !important;
        line-height: 1.4 !important;
        color: #000 !important;
        background: white !important;
    }
    
    h1, h2, h3, h4, h5, h6 {
        color: #000 !important;
        page-break-after: avoid;
    }
    
    .card, .alert {
        border: 1px solid #000 !important;
        box-shadow: none !important;
        background: white !important;
    }
    
    .table th, .table td {
        border: 1px solid #000 !important;
        color: #000 !important;
    }
    
    /* Page headers and footers */
    @page {
        margin: 0.5in;
        @top-center {
            content: "FreeBudgetCalc.com - Financial Calculator Results";
        }
        @bottom-center {
            content: "Page " counter(page) " of " counter(pages);
        }
    }
}

/* Breadcrumb styling */
.breadcrumb-nav .breadcrumb {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 8px;
    padding: 12px 20px;
    margin-bottom: 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.breadcrumb-nav .breadcrumb-item {
    font-weight: 500;
}

.breadcrumb-nav .breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    color: #6c757d;
    font-weight: bold;
    padding: 0 8px;
}

.breadcrumb-nav .breadcrumb-item.active {
    color: #495057;
    font-weight: 600;
}

.breadcrumb-nav .breadcrumb-item a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumb-nav .breadcrumb-item a:hover {
    color: #0056b3;
    text-decoration: underline;
}

/* Calculator Favorites System */
.favorites-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    max-width: 300px;
}

.favorites-toggle {
    background: linear-gradient(135deg, #007bff, #0056b3);
    border: none;
    border-radius: 50px;
    color: white;
    padding: 12px 20px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0,123,255,0.3);
    transition: all 0.3s ease;
}

.favorites-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,123,255,0.4);
}

.favorites-panel {
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
    padding: 20px;
    margin-top: 10px;
    max-height: 400px;
    overflow-y: auto;
}

.favorite-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #e9ecef;
}

.favorite-item:last-child {
    border-bottom: none;
}

.favorite-star {
    color: #ffc107;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.favorite-star:hover {
    transform: scale(1.2);
}

.favorite-star.active {
    color: #ff6b35;
}

/* Result export buttons */
.result-actions {
    display: flex;
    gap: 10px;
}

.result-actions .btn {
    transition: all 0.2s ease;
}

.result-actions .btn:hover {
    transform: translateY(-1px);
}

/* Performance optimizations */
.calculator-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    will-change: transform;
}

.calculator-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* Lazy loading indicators */
.chart-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
    background: #f8f9fa;
    border-radius: 8px;
}

.chart-loading::after {
    content: "Loading chart...";
    color: #6c757d;
    font-style: italic;
}

/* Responsive optimizations */
@media (max-width: 768px) {
    .favorites-container {
        bottom: 10px;
        right: 10px;
        max-width: 250px;
    }
    
    .breadcrumb-nav .breadcrumb {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    
    .result-actions {
        flex-direction: column;
        gap: 5px;
    }
    
    .result-actions .btn {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
}

/* Accessibility improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus states for keyboard navigation */
.favorite-star:focus,
.favorites-toggle:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* Animation for favorites */
@keyframes favoriteAdded {
    0% { transform: scale(1); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

.favorite-star.animate {
    animation: favoriteAdded 0.3s ease;
}