/* Enhanced CSS for NLP Ultimate Tutorial - Component Specific Styles */

/* Vector Embeddings Page Enhancements */
.vector-embeddings-page {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding: 20px 0;
}

.model-info-cards .card {
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    overflow: hidden;
    position: relative;
}

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

.model-info-cards .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

.model-info-cards .card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    border: none;
    padding: 20px;
    position: relative;
}

.model-info-cards .card-header.bg-primary {
    background: linear-gradient(135deg, #4e73df 0%, #224abe 100%) !important;
}

.model-info-cards .card-header.bg-success {
    background: linear-gradient(135deg, #1cc88a 0%, #13855c 100%) !important;
}

.model-info-cards .card-header.bg-info {
    background: linear-gradient(135deg, #36b9cc 0%, #258391 100%) !important;
}

.model-info-cards .card-body {
    padding: 25px;
    background: rgba(255,255,255,0.95);
}

.model-info-cards .list-unstyled li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: all 0.2s ease;
}

.model-info-cards .list-unstyled li:hover {
    background: rgba(0,0,0,0.02);
    padding-left: 10px;
}

.model-info-cards .list-unstyled li:last-child {
    border-bottom: none;
}

/* Visualization Cards */
.visualization-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: none;
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.visualization-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.visualization-card .card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 20px;
    color: white;
}

.visualization-card .card-body {
    padding: 30px;
}

/* Semantic Search Enhancement */
.semantic-search-card {
    background: linear-gradient(135deg, #ffeaa7 0%, #fab1a0 100%);
    border: none;
    box-shadow: 0 8px 25px rgba(255,193,7,0.3);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.semantic-search-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(255,193,7,0.4);
}

.semantic-search-card .card-header {
    background: linear-gradient(135deg, #fdcb6e 0%, #e17055 100%) !important;
    border: none;
    padding: 25px;
    color: white;
}

.semantic-search-card .card-body {
    background: rgba(255,255,255,0.9);
    padding: 30px;
}

.semantic-search-card .form-control-lg {
    border: 2px solid #fdcb6e;
    border-radius: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(253,203,110,0.2);
}

.semantic-search-card .form-control-lg:focus {
    border-color: #e17055;
    box-shadow: 0 4px 15px rgba(225,112,85,0.3);
    transform: translateY(-2px);
}

.semantic-search-card .btn-warning {
    background: linear-gradient(135deg, #fdcb6e 0%, #e17055 100%);
    border: none;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(253,203,110,0.4);
}

.semantic-search-card .btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(225,112,85,0.5);
}

/* Example Search Buttons */
.example-search-card {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    border: none;
    box-shadow: 0 6px 20px rgba(168,237,234,0.3);
    border-radius: 15px;
    overflow: hidden;
}

.example-search-card .card-header {
    background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%) !important;
    border: none;
    padding: 20px;
    color: white;
}

.example-search-card .card-body {
    background: rgba(255,255,255,0.8);
    padding: 25px;
}

.example-search-card .btn-outline-secondary {
    border: 2px solid #74b9ff;
    color: #0984e3;
    background: rgba(255,255,255,0.9);
    border-radius: 25px;
    padding: 10px 20px;
    margin: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(116,185,255,0.2);
}

.example-search-card .btn-outline-secondary:hover {
    background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(116,185,255,0.4);
}

/* Process Flow Cards */
.process-flow-card {
    background: linear-gradient(135deg, #e8f4fd 0%, #d1ecf1 100%);
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    overflow: hidden;
}

.process-flow-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.process-flow-card h4 {
    color: #0984e3;
    font-weight: 600;
    margin-bottom: 15px;
}

.process-flow-card p {
    color: #636e72;
    line-height: 1.6;
}

/* Info Alert Enhancements */
.vector-embeddings-page .alert-info {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border: none;
    border-left: 5px solid #2196f3;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(33,150,243,0.2);
}

.vector-embeddings-page .alert-success {
    background: linear-gradient(135deg, #e8f5e8 0%, #c8e6c9 100%);
    border: none;
    border-left: 5px solid #4caf50;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(76,175,80,0.2);
}

/* Chart Container Enhancements */
.chart-container {
    background: white;
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin: 20px 0;
    transition: all 0.3s ease;
}

.chart-container:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* Animation for page load */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.vector-embeddings-page .card {
    animation: fadeInUp 0.6s ease forwards;
}

.vector-embeddings-page .card:nth-child(1) { animation-delay: 0.1s; }
.vector-embeddings-page .card:nth-child(2) { animation-delay: 0.2s; }
.vector-embeddings-page .card:nth-child(3) { animation-delay: 0.3s; }
.vector-embeddings-page .card:nth-child(4) { animation-delay: 0.4s; }

/* Enhanced Vector Embeddings Components */
.feature-list .d-flex {
    transition: all 0.2s ease;
    border-radius: 8px;
    padding: 8px;
    margin: 0 -8px 8px -8px;
}

.feature-list .d-flex:hover {
    background: rgba(0,0,0,0.02);
    transform: translateX(5px);
}

.process-step-icon {
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.process-step-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.progress-bar {
    transition: width 1s ease-in-out;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

.bg-gradient-info {
    background: linear-gradient(135deg, #36b9cc 0%, #258391 100%) !important;
}

/* Model Information Cards Enhancement */
.model-info-cards .card {
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    border-radius: 12px;
}

.model-info-cards .card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.model-info-cards .card-header {
    border-radius: 12px 12px 0 0;
}

/* Process Flow Enhancement */
.process-flow-card h5 {
    position: relative;
}

.process-flow-card h5::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: currentColor;
    opacity: 0.3;
}

/* Interactive Elements */
.btn-outline-secondary:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* Chart Container Improvements */
.chart-container {
    position: relative;
    overflow: hidden;
}

.chart-container::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #667eea, #764ba2, #36b9cc, #1cc88a);
    border-radius: 17px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.chart-container:hover::before {
    opacity: 0.1;
}

/* Responsive Improvements */
@media (max-width: 768px) {
    .model-info-cards .card {
        margin-bottom: 1.5rem;
    }
    
    .process-step-icon {
        width: 50px !important;
        height: 50px !important;
    }
    
    .feature-list .d-flex:hover {
        transform: none;
    }
}

/* POS Tagging specific styles */
.pos-token {
    display: inline-block;
    margin: 2px;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    transition: all 0.2s ease;
}

.pos-token:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Named Entity Recognition specific styles */
.entity-token {
    display: inline-block;
    margin: 2px;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    transition: all 0.2s ease;
    cursor: pointer;
}

.entity-token:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Sentiment Analysis specific styles */
.sentiment-gauge {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
}

.sentiment-score {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    font-weight: bold;
}

.sentiment-label {
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.2rem;
    font-weight: 600;
}

/* Text Generation specific styles */
.generated-text {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-left: 4px solid var(--primary-color);
    padding: 15px;
    margin: 10px 0;
    border-radius: 8px;
    font-family: 'Georgia', serif;
    line-height: 1.6;
}

.prompt-text {
    color: #666;
    font-style: italic;
}

.generated-content {
    color: var(--primary-color);
    font-weight: 500;
}

/* Translation specific styles */
.translation-pair {
    display: flex;
    gap: 20px;
    margin: 20px 0;
}

.source-text, .target-text {
    flex: 1;
    padding: 15px;
    border-radius: 8px;
    border: 2px solid #e0e0e0;
}

.source-text {
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    border-color: var(--primary-color);
}

.target-text {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    border-color: var(--success-color);
}

.language-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8em;
    font-weight: 600;
    margin-bottom: 10px;
}

/* Classification specific styles */
.classification-result {
    display: flex;
    align-items: center;
    padding: 10px;
    margin: 5px 0;
    border-radius: 8px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    transition: all 0.2s ease;
}

.classification-result:hover {
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.classification-label {
    flex: 1;
    font-weight: 600;
}

.classification-score {
    font-size: 1.2rem;
    font-weight: bold;
    margin-left: 10px;
}

/* Vector Embeddings specific styles */
.embedding-visualization {
    text-align: center;
    margin: 20px 0;
}

.similarity-matrix {
    display: grid;
    gap: 2px;
    margin: 20px 0;
}

.similarity-cell {
    padding: 10px;
    text-align: center;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.similarity-cell:hover {
    transform: scale(1.1);
    z-index: 10;
    position: relative;
}

/* Search results specific styles */
.search-result {
    padding: 15px;
    margin: 10px 0;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    transition: all 0.2s ease;
}

.search-result:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.search-score {
    font-size: 0.9em;
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 5px;
}

/* Chart containers */
.chart-wrapper {
    position: relative;
    margin: 20px 0;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

[data-theme="dark"] .chart-wrapper {
    background: #2d2d2d;
}

/* Loading animations */
.loading-dots {
    display: inline-block;
}

.loading-dots::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Pulse animation for important elements */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Slide animations */
.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

@keyframes slideInLeft {
    from { transform: translateX(-100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Bounce animation for success states */
.bounce-in {
    animation: bounceIn 0.6s ease-out;
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

/* Shake animation for error states */
.shake {
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* Gradient text effects */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--success-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* Custom scrollbar for specific containers */
.custom-scrollbar {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) #f1f1f1;
}

.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}

/* Responsive design enhancements */
@media (max-width: 576px) {
    .translation-pair {
        flex-direction: column;
    }
    
    .classification-result {
        flex-direction: column;
        text-align: center;
    }
    
    .classification-score {
        margin-left: 0;
        margin-top: 5px;
    }
    
    .sentiment-gauge {
        width: 150px;
        height: 150px;
    }
    
    .sentiment-score {
        font-size: 1.5rem;
    }
}

/* Print styles */
@media print {
    .navbar, .btn, .alert {
        display: none !important;
    }
    
    .card {
        border: 1px solid #000 !important;
        box-shadow: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000FF;
        --success-color: #008000;
        --warning-color: #FF8000;
        --danger-color: #FF0000;
    }
    
    .card {
        border: 2px solid #000;
    }
    
    .btn {
        border: 2px solid #000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

/* ARIA live region for dynamic content */
.aria-live {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* Prevent horizontal scrolling in text containers */
.card-body {
    overflow-x: hidden;
    max-width: 100%;
}

.text-content {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    font-size: 14px;
    color: #333;
    word-wrap: break-word;
    word-break: break-word;
    overflow-wrap: break-word;
    white-space: normal;
    max-width: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 5px;
    border: 1px solid #e9ecef;
    margin-bottom: 15px;
}

[data-theme="dark"] .text-content {
    background-color: #2d2d2d !important;
    color: #e0e0e0 !important;
    border-color: #555 !important;
}

/* Responsive text containers */
.text-container {
    max-width: 100%;
    overflow-x: auto;
}

@media (max-width: 768px) {
    .text-content {
        font-size: 13px;
        padding: 10px !important;
        max-height: 150px !important;
    }
}

/* Additional text wrapping rules */
* {
    box-sizing: border-box;
}

.container, .container-fluid {
    overflow-x: hidden;
    max-width: 100%;
}

/* Ensure all text elements wrap properly */
p, div, span, pre, code {
    word-wrap: break-word;
    word-break: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

/* Enhanced table styling for multi-column layouts */
.table-responsive {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.table th {
    font-weight: 600;
    font-size: 0.9em;
    padding: 12px 8px;
    text-align: center !important;
    vertical-align: middle !important;
    background-color: var(--primary-color) !important;
    color: white !important;
    border: none !important;
}

.table td {
    padding: 10px 8px;
    text-align: center !important;
    vertical-align: middle !important;
    font-size: 0.9em;
    border: 1px solid #dee2e6;
}

.table td code {
    background-color: #f8f9fa;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
    color: #e83e8c;
    display: inline-block;
}

[data-theme="dark"] .table td code {
    background-color: #2d2d2d;
    color: #ff6b9d;
}

.table td .badge {
    font-size: 0.8em;
    padding: 4px 8px;
    display: inline-block;
}

/* Fix table header alignment */
.table thead th {
    text-align: center !important;
    vertical-align: middle !important;
    white-space: nowrap;
}

/* Ensure proper table structure */
.table {
    margin-bottom: 0;
    width: 100%;
    table-layout: fixed;
}

.table tbody tr:nth-of-type(odd) {
    background-color: rgba(0,0,0,.02);
}

.table tbody tr:hover {
    background-color: rgba(0,0,0,.075);
}

/* Responsive table adjustments */
@media (max-width: 768px) {
    .table th, .table td {
        padding: 8px 4px;
        font-size: 0.8em;
    }
    
    .table td code {
        font-size: 0.75em;
        padding: 1px 4px;
    }
    
    .table td .badge {
        font-size: 0.7em;
        padding: 2px 6px;
    }
}

/* Additional table header fixes */
.table-primary th {
    background-color: var(--primary-color) !important;
    color: white !important;
    text-align: center !important;
    vertical-align: middle !important;
    font-weight: 600 !important;
    border: none !important;
    padding: 12px 8px !important;
}

/* Override Bootstrap table styles */
.table thead th {
    border-bottom: 2px solid #dee2e6 !important;
    text-align: center !important;
    vertical-align: middle !important;
}

/* Ensure consistent column widths */
.table th[style*="width"] {
    text-align: center !important;
}

/* Fix any alignment issues */
.table td, .table th {
    text-align: center !important;
    vertical-align: middle !important;
}

/* ===== VERTICAL SPACING AND TITLE HIERARCHY ===== */

/* Main section headers */
.task-subheader {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
    position: relative;
}

.task-subheader:first-child {
    margin-top: 1rem;
}

.task-subheader::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--accent-color);
}

/* Subsection headers */
h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2c3e50;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    padding-left: 0.5rem;
    border-left: 4px solid var(--primary-color);
    background-color: #f8f9fa;
    padding: 0.75rem 1rem;
    border-radius: 0 5px 5px 0;
}

[data-theme="dark"] h4 {
    color: #e0e0e0;
    background-color: #2d2d2d;
    border-left-color: var(--primary-color);
}

/* Card spacing */
.card {
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: none;
    border-radius: 8px;
}

.card-header {
    background-color: var(--primary-color);
    color: white;
    border-radius: 8px 8px 0 0 !important;
    padding: 1rem 1.25rem;
    border-bottom: none;
}

.card-header h5 {
    margin: 0;
    font-weight: 600;
    font-size: 1.1rem;
}

.card-body {
    padding: 1.25rem;
    background-color: white;
    border-radius: 0 0 8px 8px;
}

[data-theme="dark"] .card-body {
    background-color: #2d2d2d;
}

/* Row spacing */
.row {
    margin-bottom: 1.5rem;
}

.row:last-child {
    margin-bottom: 0;
}

/* Alert boxes spacing */
.alert {
    margin: 1.5rem 0;
    padding: 1rem 1.25rem;
    border-radius: 8px;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.alert h4 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.alert ul {
    margin-bottom: 0;
}

.alert li {
    margin-bottom: 0.5rem;
}

/* Statistics boxes */
.stats-container {
    margin: 1.5rem 0;
}

.stats-container .col-md-4 {
    margin-bottom: 1rem;
}

/* Base stats card layout */
.stats-container .card {
    text-align: center;
}

/* Dark-mode stats styling (gradient + white text) */
[data-theme="dark"] .stats-container .card {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color)) !important;
    color: #fff !important;
    border: none !important;
}

.stats-container .card-body {
    background: transparent !important;
    padding: 1.5rem 1rem;
}

/* Text colors for dark-mode stats */
[data-theme="dark"] .stats-container .card-body h3,
[data-theme="dark"] .stats-container .card-body p,
[data-theme="dark"] .stats-container .card-body h2,
[data-theme="dark"] .stats-container .card-title {
    color: #fff !important;
}

.stats-container .card-body h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stats-container .card-body p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Table spacing */
.table-responsive {
    margin: 1rem 0 1.5rem 0;
}

/* Chart spacing */
.chart-container {
    margin: 1.5rem 0;
    padding: 1rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
}

[data-theme="dark"] .chart-container {
    background-color: #2d2d2d;
}

.chart-container img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

/* Paragraph spacing */
p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

p:last-child {
    margin-bottom: 0;
}

/* Small text spacing */
small {
    margin-top: 0.5rem;
    display: block;
    color: #6c757d;
}

[data-theme="dark"] small {
    color: #adb5bd;
}

/* Button spacing */
.btn {
    margin: 0.25rem;
    border-radius: 6px;
}

/* List spacing */
ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

ul li, ol li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* Collapsible content spacing */
.collapse {
    margin-top: 0.5rem;
}

/* Section dividers */
.section-divider {
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--primary-color));
    margin: 2rem 0;
    border-radius: 1px;
}

/* Responsive spacing adjustments */
@media (max-width: 768px) {
    .task-subheader {
        font-size: 1.3rem;
        margin-top: 1.5rem;
        margin-bottom: 1rem;
    }
    
    h4 {
        font-size: 1.1rem;
        margin-top: 1.25rem;
        margin-bottom: 0.75rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .alert {
        margin: 1rem 0;
    }
    
    .stats-container .card-body h3 {
        font-size: 1.5rem;
    }
}

/* Quick Navigation styling (scoped) */
.quick-nav.card {
  border: none;
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  border-radius: 12px;
  overflow: hidden;
}
.quick-nav .card-header {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color)) !important;
  color: #fff !important;
  border-radius: 12px 12px 0 0 !important;
  padding: 0.875rem 1.25rem;
}
.quick-nav .card-header h5 { margin: 0; font-weight: 700; letter-spacing: .2px; }

.quick-nav h6 {
  color: #2c3e50;
  font-weight: 700;
  margin: .75rem 0 .5rem 0;
  display: flex; align-items: center; gap: .5rem;
}

.quick-nav .btn {
  border-width: 2px;
  font-weight: 600;
  border-radius: 28px;
  padding: 10px 16px;
  display: inline-flex; align-items: center; gap: .35rem;
  transition: all .15s ease;
}
.quick-nav .btn i { margin: 0; font-size: .95rem; }
.quick-nav .btn:hover { transform: translateY(-1px); box-shadow: 0 6px 12px rgba(0,0,0,.08); }

/* subtle background so outline buttons look like chips */
.quick-nav .btn-outline-primary,
.quick-nav .btn-outline-success,
.quick-nav .btn-outline-info { background-color: #f8f9fa; }

/* layout tweaks */
.quick-nav .row { row-gap: .75rem; }

@media (max-width: 768px) {
  .quick-nav .btn { width: 100%; justify-content: center; }
}

/* WORD FREQUENCY OVERLAP FIX - Force vertical stacking */
.wf-chart-section {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin-bottom: 4rem !important;
    overflow: hidden !important;
    page-break-inside: avoid !important;
}

.wf-table-container {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin-top: 4rem !important;
    overflow: visible !important;
    page-break-inside: avoid !important;
}

/* Force chart container to be completely separate */
.wf-chart-section .chart-container {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin: 0 !important;
}

.chart-container { 
    display: block !important; 
    width: 100% !important; 
    height: auto !important;
    min-height: auto !important;
    max-height: none !important;
    margin: 1.5rem 0 !important; 
    position: static !important; 
    z-index: auto !important; 
    clear: both !important;
    overflow: visible !important;
}

.chart-container img, .chart-container canvas, .chart-container svg { 
    display: block !important; 
    width: 100% !important;
    max-width: 100% !important; 
    height: auto !important;
    margin: 0 auto !important;
}

/* Kill all floats in word frequency section */
.wf-table-container .table-responsive {
    float: none !important;
    clear: both !important;
    display: block !important;
    width: 100% !important;
    position: static !important;
}

/* POS DISTRIBUTION OVERLAP FIX - Force vertical stacking */
.pos-chart-section {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin-bottom: 3rem !important;
    overflow: hidden !important;
    page-break-inside: avoid !important;
}

.pos-table-container {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin-top: 3rem !important;
    overflow: visible !important;
    page-break-inside: avoid !important;
}

/* Force POS chart container to be completely separate */
.pos-chart-section .chart-container {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin: 0 !important;
}

/* ENTITY DISTRIBUTION OVERLAP FIX - Force vertical stacking */
.entity-chart-section {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin-bottom: 3rem !important;
    overflow: hidden !important;
    page-break-inside: avoid !important;
}

.entity-table-container {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin-top: 3rem !important;
    overflow: visible !important;
    page-break-inside: avoid !important;
}

/* Force entity chart container to be completely separate */
.entity-chart-section .chart-container {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin: 0 !important;
}

/* Entity Badge Styling for Better Visibility */
.entity-badge {
    display: inline-block !important;
    padding: 0.5rem 0.75rem !important;
    margin: 0.2rem !important;
    border-radius: 8px !important;
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5) !important;
    border: 2px solid #ffffff !important;
    box-shadow: 0 3px 6px rgba(0,0,0,0.3) !important;
    transition: all 0.2s ease !important;
    cursor: help !important;
}

.entity-badge:hover {
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 8px rgba(0,0,0,0.4) !important;
}

/* Ensure entity text container has clean white background */
.entity-text-container {
    background-color: #ffffff !important;
    padding: 1.5rem !important;
    border-radius: 8px !important;
    border: 1px solid #dee2e6 !important;
    line-height: 2 !important;
    margin: 1rem 0 !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05) !important;
}

/* POS Legend Button Styling */
.pos-legend-buttons {
    margin: 1rem 0;
}

.pos-legend-buttons .btn {
    font-weight: 700 !important;
    border-radius: 8px !important;
    padding: 0.875rem 2.5rem !important;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2) !important;
    font-size: 1.1rem !important;
}

/* Active button - white background with dark text for high contrast */
.pos-legend-buttons .btn.active {
    background-color: #ffffff !important;
    color: #1a365d !important;
    border: 3px solid #ffffff !important;
    transform: none;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3) !important;
}

/* Inactive button - dark background with white text */
.pos-legend-buttons .btn:not(.active) {
    background-color: rgba(0,0,0,0.3) !important;
    color: #ffffff !important;
    border: 3px solid rgba(255,255,255,0.5) !important;
}

.pos-legend-buttons .btn:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 20px rgba(0,0,0,0.3) !important;
}

/* Ensure text is always visible */
.pos-legend-buttons .btn.active:hover {
    color: #1a365d !important;
    background-color: #f8f9fa !important;
}

.pos-legend-buttons .btn:not(.active):hover {
    background-color: rgba(0,0,0,0.5) !important;
    color: #ffffff !important;
    border-color: #ffffff !important;
}

.pos-tags-section {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* SENTIMENT ANALYSIS METHOD CARDS - Modern Design */
.sentiment-method-card {
    border: none !important;
    border-radius: 16px !important;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1) !important;
    overflow: hidden !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    position: relative !important;
}

.sentiment-method-card:hover {
    transform: translateY(-8px) !important;
    box-shadow: 0 16px 48px rgba(0,0,0,0.15) !important;
}

/* Method Header with Gradients */
.method-header {
    padding: 2rem 1.5rem 1rem !important;
    text-align: center !important;
    position: relative !important;
    color: white !important;
}

.vader-card .method-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

.distilbert-card .method-header {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%) !important;
}

.roberta-card .method-header {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%) !important;
}

.method-icon {
    width: 80px !important;
    height: 80px !important;
    border-radius: 50% !important;
    background: rgba(255,255,255,0.2) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    margin: 0 auto 1rem !important;
    backdrop-filter: blur(10px) !important;
}

.method-icon i {
    font-size: 2.5rem !important;
    color: white !important;
}

.method-title {
    font-size: 1.5rem !important;
    font-weight: 700 !important;
    margin: 0 0 0.5rem 0 !important;
    color: white !important;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3) !important;
}

.method-subtitle {
    font-size: 0.9rem !important;
    opacity: 1 !important;
    margin: 0 !important;
    font-weight: 500 !important;
    color: white !important;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3) !important;
}

/* Method Body */
.method-body {
    padding: 1.5rem !important;
    background: white !important;
    color: #333333 !important;
}

.method-description {
    font-size: 0.95rem !important;
    color: #6c757d !important;
    margin-bottom: 1.5rem !important;
    line-height: 1.6 !important;
}

.method-features {
    display: flex !important;
    flex-direction: column !important;
    gap: 0.75rem !important;
}

.feature-item {
    display: flex !important;
    align-items: center !important;
    gap: 0.75rem !important;
}

.feature-item i {
    color: #28a745 !important;
    font-size: 0.9rem !important;
    flex-shrink: 0 !important;
}

.feature-item span {
    font-size: 0.9rem !important;
    color: #495057 !important;
    font-weight: 500 !important;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .method-header {
        padding: 1.5rem 1rem 0.75rem !important;
    }
    
    .method-icon {
        width: 60px !important;
        height: 60px !important;
    }
    
    .method-icon i {
        font-size: 2rem !important;
    }
    
    .method-title {
        font-size: 1.25rem !important;
    }
}

/* SENTIMENT ANALYSIS OVERLAP FIX - Force vertical stacking */
.emotion-chart-section,
.sentence-chart-section {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin-bottom: 3rem !important;
    overflow: hidden !important;
    page-break-inside: avoid !important;
}

.emotion-result-container,
.sentence-analysis-container {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin-top: 3rem !important;
    overflow: visible !important;
    page-break-inside: avoid !important;
}

/* Force sentiment chart containers to be completely separate */
.emotion-chart-section .chart-container,
.sentence-chart-section .chart-container {
    display: block !important;
    width: 100% !important;
    float: none !important;
    clear: both !important;
    position: static !important;
    margin: 0 !important;
}

/* Stats cards - high contrast in light mode */
.stats-card {
  background: #eef5ff !important;          /* light blue background for readability */
  border: 1px solid #d6e4ff !important;
  color: #0b3d91 !important;
  box-shadow: 0 4px 12px rgba(0,0,0,.06) !important;
  min-height: 110px;
}
/* Force dark text for all children in light mode */
.stats-card *, .stats-card .card-body *, .stats-card .card-body {
  color: #0b3d91 !important;
}
.stats-card .card-body { background: transparent !important; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.stats-card h3 { font-size: 2rem !important; margin: 0 0 .25rem 0 !important; }
.stats-card p, .stats-card .card-title { font-weight: 700 !important; margin: 0 !important; opacity: 1; }

/* Dark mode variant keeps white text on gradient */
[data-theme="dark"] .stats-card {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color)) !important;
  border: none !important;
  color: #fff !important;
}
[data-theme="dark"] .stats-card *, [data-theme="dark"] .stats-card .card-body * { color: #fff !important; }

/* Quick Navigation button color fixes */
.quick-nav .btn-outline-primary { color: #0d6efd; border-color: #0d6efd; }
.quick-nav .btn-outline-primary:hover,
.quick-nav .btn-outline-primary:focus,
.quick-nav .btn-outline-primary:active { color: #fff; background-color: #0d6efd; border-color: #0d6efd; box-shadow: none; }

.quick-nav .btn-outline-success { color: #198754; border-color: #198754; }
.quick-nav .btn-outline-success:hover,
.quick-nav .btn-outline-success:focus,
.quick-nav .btn-outline-success:active { color: #fff; background-color: #198754; border-color: #198754; box-shadow: none; }

.quick-nav .btn-outline-info { color: #0dcaf0; border-color: #0dcaf0; }
.quick-nav .btn-outline-info:hover,
.quick-nav .btn-outline-info:focus,
.quick-nav .btn-outline-info:active { color: #0b2a2f; background-color: #0dcaf0; border-color: #0dcaf0; box-shadow: none; }

/* Ensure readable default text color on chip background */
.quick-nav .btn { color: inherit; }

/* Quick Nav title color fixes */
.quick-nav .card-header {
  background: transparent !important; /* keep card bg */
  color: #0d6efd !important;          /* visible in light mode */
  border-bottom: 2px solid rgba(13,110,253,.15) !important;
}

[data-theme="dark"] .quick-nav .card-header {
  color: #ffffff !important;
  border-bottom: 2px solid rgba(255,255,255,.2) !important;
}

/* Dark mode quick navigation fixes */
[data-theme="dark"] .quick-nav .card {
  background-color: rgba(255,255,255,0.1) !important;
  border: 1px solid rgba(255,255,255,0.2) !important;
}

[data-theme="dark"] .quick-nav .btn-outline-primary {
  color: #6ea8fe !important;
  border-color: #6ea8fe !important;
  background-color: rgba(110,168,254,0.1) !important;
}

[data-theme="dark"] .quick-nav .btn-outline-primary:hover,
[data-theme="dark"] .quick-nav .btn-outline-primary:focus,
[data-theme="dark"] .quick-nav .btn-outline-primary:active {
  color: #000 !important;
  background-color: #6ea8fe !important;
  border-color: #6ea8fe !important;
}

[data-theme="dark"] .quick-nav .btn-outline-success {
  color: #75b798 !important;
  border-color: #75b798 !important;
  background-color: rgba(117,183,152,0.1) !important;
}

[data-theme="dark"] .quick-nav .btn-outline-success:hover,
[data-theme="dark"] .quick-nav .btn-outline-success:focus,
[data-theme="dark"] .quick-nav .btn-outline-success:active {
  color: #000 !important;
  background-color: #75b798 !important;
  border-color: #75b798 !important;
}

[data-theme="dark"] .quick-nav .btn-outline-info {
  color: #6edff6 !important;
  border-color: #6edff6 !important;
  background-color: rgba(110,223,246,0.1) !important;
}

[data-theme="dark"] .quick-nav .btn-outline-info:hover,
[data-theme="dark"] .quick-nav .btn-outline-info:focus,
[data-theme="dark"] .quick-nav .btn-outline-info:active {
  color: #000 !important;
  background-color: #6edff6 !important;
  border-color: #6edff6 !important;
}