/* Custom styles for PDF Comparison Tool */

body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
}

.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-2px);
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
    border-bottom: none;
    font-weight: 600;
}

.btn-primary {
    background: linear-gradient(135deg, #007bff, #0056b3);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    padding: 12px 24px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 123, 255, 0.3);
}

.form-control {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 12px 16px;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.nav-tabs .nav-link {
    border: none;
    border-radius: 8px 8px 0 0;
    color: #6c757d;
    font-weight: 500;
    padding: 12px 20px;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link:hover {
    color: #007bff;
    background-color: #f8f9fa;
}

.nav-tabs .nav-link.active {
    background-color: #007bff;
    color: white;
    border: none;
}

.alert {
    border-radius: 8px;
    border: none;
    font-weight: 500;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

.progress {
    height: 8px;
    border-radius: 4px;
}

.progress-bar {
    border-radius: 4px;
}

/* Comparison results styling */
.comparison-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin: 10px 0;
}

.difference-box {
    border: 3px solid #dc3545;
    border-radius: 4px;
    position: relative;
}

.difference-box::after {
    content: "Difference";
    position: absolute;
    top: -10px;
    left: 10px;
    background: #dc3545;
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
}

/* Table styling */
.table {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.table thead th {
    background-color: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
    color: #495057;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
}

/* Badge styling */
.badge {
    font-size: 0.8em;
    padding: 6px 10px;
    border-radius: 6px;
}

.badge-danger {
    background-color: #dc3545;
}

.badge-warning {
    background-color: #ffc107;
    color: #212529;
}

.badge-success {
    background-color: #28a745;
}

.badge-info {
    background-color: #17a2b8;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .card {
        margin-bottom: 20px;
    }
    
    .nav-tabs .nav-link {
        padding: 8px 12px;
        font-size: 14px;
    }
    
    .btn-lg {
        padding: 10px 20px;
        font-size: 16px;
    }
}

/* Loading animation */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.loading-pulse {
    animation: pulse 1.5s infinite;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

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

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

/* Print styles */
@media print {
    .navbar, .btn, .nav-tabs {
        display: none !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #dee2e6 !important;
    }
}