/* Custom CSS for Medium Table Converter */

:root {
    --primary-color: #007bff;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
}

/* Card styling enhancements */
.card {
    border: none;
    border-radius: 10px;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1) !important;
}

.card-header {
    border-radius: 10px 10px 0 0 !important;
    font-weight: 600;
}

/* Form enhancements */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.15);
}

/* Button group styling */
.btn-group .btn-outline-primary {
    border-color: #e0e0e0;
}

.btn-group .btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-group .btn-check:checked + .btn-outline-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Color input styling */
.form-control-color {
    width: 100%;
    height: 38px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    cursor: pointer;
}

/* Preview container */
#previewContainer {
    max-height: 600px;
    overflow: auto;
    background: #ffffff;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Table styling for preview */
.preview-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    font-family: inherit;
}

.preview-table th,
.preview-table td {
    text-align: left;
    vertical-align: top;
    word-wrap: break-word;
}

/* Header and footer text styling */
.table-header-text,
.table-footer-text {
    font-weight: 600;
    text-align: center;
    margin: 10px 0;
    padding: 8px;
    border-radius: 6px;
    background: rgba(0, 123, 255, 0.1);
    color: var(--dark-color);
}

/* Loading spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* File input styling */
.form-control[type="file"] {
    padding: 8px;
}

/* Textarea monospace font */
.font-monospace {
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
}

/* Button hover effects */
.btn {
    border-radius: 8px;
    transition: all 0.2s ease-in-out;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Icon spacing */
.me-1 { margin-right: 0.25rem !important; }
.me-2 { margin-right: 0.5rem !important; }

/* Responsive adjustments */
@media (max-width: 768px) {
    .container-fluid {
        padding: 15px;
    }
    
    .card-body {
        padding: 15px;
    }
    
    .btn-group {
        display: flex;
        flex-wrap: wrap;
    }
    
    .btn-group .btn {
        flex: 1;
        min-width: 120px;
    }
}

/* Accessibility improvements */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

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

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

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

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

#previewContainer::-webkit-scrollbar-thumb:hover {
    background: #bbb;
}

/* Error state styling */
.is-invalid {
    border-color: var(--danger-color) !important;
}

.invalid-feedback {
    display: block;
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Success state styling */
.is-valid {
    border-color: var(--success-color) !important;
}

.valid-feedback {
    display: block;
    color: var(--success-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Animation for preview updates */
.preview-updating {
    opacity: 0.7;
    transition: opacity 0.3s ease-in-out;
}

/* Highlight effects */
.highlight-cell {
    animation: highlightFade 2s ease-in-out;
}

@keyframes highlightFade {
    0% { background-color: rgba(255, 235, 59, 0.8); }
    100% { background-color: transparent; }
}

/* Table container for responsive tables */
.table-responsive-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Custom checkbox styling */
.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(0, 123, 255, 0.25);
}

/* Tooltip customization */
.tooltip {
    font-size: 0.875rem;
}

/* Progress bar for file upload */
.upload-progress {
    height: 4px;
    background-color: #e9ecef;
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}

.upload-progress-bar {
    height: 100%;
    background-color: var(--success-color);
    transition: width 0.3s ease;
}

/* Drag and drop styling */
.drop-zone {
    border: 2px dashed #ccc;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
    background-color: #fafafa;
}

.drop-zone.dragover {
    border-color: var(--primary-color);
    background-color: rgba(0, 123, 255, 0.05);
}

.drop-zone:hover {
    border-color: var(--primary-color);
    background-color: rgba(0, 123, 255, 0.02);
}

/* Footer styling */
footer {
    margin-top: auto;
    background: linear-gradient(135deg, #343a40 0%, #495057 100%) !important;
}

footer .border-top {
    border-color: #495057 !important;
}

footer p {
    margin-bottom: 0.5rem;
}

footer .text-muted {
    color: #adb5bd !important;
}

/* autoSentia.com link styling */
footer a.text-light:hover {
    color: #ffffff !important;
    text-decoration: underline !important;
}

footer a.text-light {
    transition: all 0.2s ease-in-out;
}