:root {
    --primary-green: #2ecc71;
    --secondary-green: #27ae60;
    --primary-blue: #3498db;
    --secondary-blue: #2980b9;
    --gradient-1: linear-gradient(135deg, #2ecc71, #3498db);
    --gradient-2: linear-gradient(45deg, #27ae60, #2980b9);
    --light-bg: #f8f9fa;
    --dark-text: #2c3e50;
    --border-radius: 12px;
    --box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--light-bg);
    color: var(--dark-text);
    line-height: 1.6;
}

.dashboard {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
.dashboard-header {
    background: var(--gradient-1);
    color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    text-align: center;
    box-shadow: var(--box-shadow);
}

.dashboard-header h1 {
    font-size: 2.2em;
    margin-bottom: 5px;
    font-weight: 700;
    letter-spacing: 1px;
}

.dashboard-header h2 {
    font-size: 1.1em;
    font-weight: 400;
    opacity: 0.95;
}

/* Export Controls */
.export-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 10px 15px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.export-buttons {
    display: flex;
    gap: 15px;
}

.export-btn {
    padding: 10px 20px;
    background: white;
    border: 2px solid var(--primary-green);
    border-radius: var(--border-radius);
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--dark-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.export-btn:hover {
    background: var(--gradient-1);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

.btn-icon {
    font-size: 1.1em;
}

.export-note {
    color: #666;
    font-size: 0.85em;
    font-style: italic;
    background: var(--light-bg);
    padding: 5px 12px;
    border-radius: 20px;
}

/* Section Headers */
section h3 {
    font-size: 1.3em;
    margin-bottom: 15px;
    color: var(--dark-text);
    border-left: 5px solid var(--primary-green);
    padding-left: 12px;
    background: linear-gradient(to right, rgba(46, 204, 113, 0.1), transparent);
}

/* Ranking Section */
.ranking-section {
    margin-bottom: 20px;
}

.ranking-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.ranking-card {
    background: var(--gradient-2);
    color: white;
    padding: 15px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: visible;
}

.ranking-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.15);
}

.ranking-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.1), rgba(255,255,255,0));
    pointer-events: none;
}

.ranking-card .rank {
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.9;
}

.ranking-card .model-name {
    font-size: 1.4em;
    font-weight: 700;
    margin: 5px 0;
}

.ranking-card .score {
    font-size: 2em;
    font-weight: 700;
    margin: 8px 0;
}

.ranking-card .medal {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 1.5em;
    opacity: 0.3;
}

/* Charts Container */
.charts-container {
    margin: 20px 0;
    padding: 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.chart-row {
    margin-bottom: 20px;
}

.chart-card {
    background: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.chart-wrapper {
    height: 450px;
    position: relative;
    width: 100%;
}

/* Chart value labels styling */
.chartjs-datalabel {
    font-weight: 700 !important;
    text-shadow: 0 1px 3px rgba(255,255,255,0.9) !important;
    background: transparent !important;
    padding: 2px 4px !important;
    border-radius: 0 !important;
    border: none !important;
    font-size: 13px !important;
    color: #000000 !important;
    box-shadow: none !important;
    line-height: 1.2;
    z-index: 100 !important;
}

/* Ensure charts have enough space for labels */
canvas {
    width: 100% !important;
    height: 100% !important;
    max-height: none !important;
}

/* Adjust bar chart container to prevent label cutoff */
.chart-card .chart-wrapper {
    overflow: visible !important;
    position: relative;
}

/* Per-Class Text Styles */
.perclass-text-container {
    margin: 20px 0;
    padding: 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.perclass-text-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 15px;
}

.perclass-text-card {
    background: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.perclass-text-card h4 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 1.2em;
    text-align: center;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-green);
}

.perclass-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em;
}

.perclass-table th {
    background: var(--gradient-1);
    color: white;
    padding: 10px 5px;
    font-weight: 600;
    text-align: center;
    font-size: 0.85em;
}

.perclass-table td {
    padding: 8px 5px;
    text-align: center;
    border-bottom: 1px solid #ddd;
    background: white;
}

.perclass-table .class-name {
    font-weight: 600;
    color: var(--dark-text);
    text-align: left;
    padding-left: 10px;
}

.perclass-table .metric-value {
    font-weight: 600;
    color: var(--primary-blue);
}

.perclass-table tr:hover td {
    background: linear-gradient(to right, rgba(46, 204, 113, 0.05), rgba(52, 152, 219, 0.05));
}

/* Confusion Matrices */
.confusion-section {
    margin-bottom: 30px;
}

.all-matrices-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 15px;
}

.model-matrix-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--box-shadow);
}

.model-matrix-section h4.matrix-model-title {
    font-size: 1.3em;
    color: var(--primary-blue);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-green);
    background: linear-gradient(to right, rgba(46, 204, 113, 0.1), transparent);
    padding-left: 15px;
}

.confusion-display {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.confusion-card {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    border: 1px solid rgba(46, 204, 113, 0.1);
}

.confusion-card h5 {
    font-size: 1.1em;
    color: var(--dark-text);
    margin-bottom: 15px;
    text-align: center;
    font-weight: 600;
}

.matrix-container {
    overflow-x: auto;
    overflow-y: visible;
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em;
    min-width: 300px;
}

.matrix-table th {
    background: var(--gradient-1);
    color: white;
    font-weight: 600;
    padding: 10px 12px;
    text-align: center;
    border: 1px solid #ddd;
}

.matrix-table td {
    background: white;
    padding: 10px 12px;
    text-align: center;
    border: 1px solid #ddd;
    font-size: 1em;
}

.matrix-table .true-positive {
    background: rgba(46, 204, 113, 0.2);
    font-weight: 700;
}

.matrix-table .false-positive {
    background: rgba(231, 76, 60, 0.1);
}

/* Formulas Section - FIXED alignment */
.formulas-section {
    margin-bottom: 30px;
}

.formulas-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    align-items: stretch;
}

.formula-card {
    background: white;
    padding: 15px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-left: 3px solid var(--primary-green);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    height: 100%;
}

.formula-card:hover {
    transform: translateX(3px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}

.formula-card h4 {
    color: var(--primary-blue);
    margin-bottom: 10px;
    font-size: 1.1em;
    text-align: center;
}

.formula-equation {
    background: var(--light-bg);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 8px;
    text-align: center;
    border: 1px solid rgba(46, 204, 113, 0.2);
    font-size: 0.9em;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.equation {
    font-weight: 600;
    color: var(--dark-text);
    display: inline-block;
}

.fraction {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    margin: 0 2px;
}

.numerator {
    display: block;
    border-bottom: 1px solid var(--primary-blue);
    padding: 0 4px;
    margin-bottom: 2px;
    text-align: center;
}

.denominator {
    display: block;
    padding: 0 4px;
    text-align: center;
}

/* Dashboard Footer */
.dashboard-footer {
    margin-top: 30px;
    padding: 20px;
    text-align: center;
    background: linear-gradient(to right, rgba(46, 204, 113, 0.05), rgba(52, 152, 219, 0.05));
    border-radius: var(--border-radius);
    color: #666;
    font-size: 0.9em;
}

.footer-note {
    margin-top: 5px;
    font-size: 0.85em;
    color: #999;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--light-bg);
    border-top: 4px solid var(--primary-green);
    border-right: 4px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

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

/* Print/Export Styles */
@media print {
    body {
        background: white;
    }
    
    .dashboard {
        padding: 0;
        max-width: 100%;
    }
    
    .export-controls {
        display: none !important;
    }
    
    .loading-overlay {
        display: none !important;
    }
    
    .dashboard-header {
        background: #2ecc71 !important;
        color: white !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .ranking-card,
    .chart-card,
    .perclass-text-card,
    .model-matrix-section,
    .confusion-card,
    .formula-card {
        break-inside: avoid;
        page-break-inside: avoid;
        overflow: visible !important;
        background-color: white !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
    
    .ranking-card {
        background: linear-gradient(135deg, #2ecc71, #3498db) !important;
        color: white !important;
    }
    
    .perclass-text-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .chart-wrapper {
        height: 400px !important;
    }
    
    .matrix-table th,
    .matrix-table th.row-label,
    .perclass-table th {
        background: #2ecc71 !important;
        color: white !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .matrix-table .true-positive {
        background: rgba(46, 204, 113, 0.2) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .chartjs-datalabel {
        color: black !important;
        font-size: 12px !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    #dashboard-content,
    .charts-container,
    .perclass-text-container,
    .confusion-section,
    .formulas-section {
        overflow: visible !important;
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .perclass-text-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .formulas-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .chart-wrapper {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .dashboard-header h1 {
        font-size: 1.8em;
    }
    
    .dashboard-header h2 {
        font-size: 1em;
    }
    
    .ranking-cards {
        grid-template-columns: 1fr;
    }
    
    .export-controls {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .export-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .confusion-display {
        grid-template-columns: 1fr;
    }
    
    .perclass-text-grid {
        grid-template-columns: 1fr;
    }
    
    .formulas-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-wrapper {
        height: 350px;
    }
    
    .matrix-table {
        font-size: 0.8em;
    }
    
    .matrix-table th,
    .matrix-table td,
    .matrix-table th.row-label {
        padding: 6px 8px;
    }
    
    .chartjs-datalabel {
        font-size: 11px !important;
    }
    
    .perclass-table {
        font-size: 0.8em;
    }
    
    .perclass-table th,
    .perclass-table td {
        padding: 6px 3px;
    }
}

/* Hover Effects */
.matrix-table td {
    transition: var(--transition);
}

.matrix-table td:hover {
    transform: scale(1.02);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    z-index: 5;
    position: relative;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-blue));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-2);
}

/* Fix formula card title alignment */
.formula-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    height: 100%;
    padding: 15px;
}

.formula-card h4 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 1.1em;
    text-align: center;
    width: 100%;
    border-bottom: 1px solid rgba(46, 204, 113, 0.3);
    padding-bottom: 8px;
}

.formula-equation {
    background: var(--light-bg);
    padding: 12px 8px;
    border-radius: 6px;
    text-align: center;
    border: 1px solid rgba(46, 204, 113, 0.2);
    font-size: 0.9em;
    width: 100%;
    margin-top: auto;
    margin-bottom: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70px;
}

.equation {
    font-weight: 600;
    color: var(--dark-text);
    display: inline-block;
    word-break: break-word;
    line-height: 1.4;
}