/* KNN specific styles - using unified demo system */
@import url('/css/unified-demos.css');

/* KNN specific overrides and additions */
:root {
    --knn-cat-color: #e74c3c;
    --knn-dog-color: #f39c12;
    --knn-test-color: #9b59b6;
}

/* Content grid layout - using unified system */
.content-grid {
    /* Usa .demo-grid del sistema unificado */
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    margin: 2rem 0;
}

/* KNN specific panel adaptations */
#info-panel {
    /* Usar .info-panel del sistema unificado */
    /* order removed to respect DOM order */
}

.canvas-container {
    /* Usar .canvas-container del sistema unificado */
    /* order removed to respect DOM order */
}

.controls-panel {
    /* Usar .controls-panel del sistema unificado */
    /* order removed to respect DOM order */
}

/* KNN specific responsive adjustments */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* En móvil, mantener el orden lógico */
    #info-panel {
        /* order removed */
    }

    .canvas-container {
        /* order removed */
    }

    .controls-panel {
        /* order removed */
    }
}

/* KNN specific panel styles */
#info-panel {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid #e9ecef;
}

.canvas-container {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    text-align: center;
}

.canvas-container h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.description-block {
    background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
    border-left: 5px solid var(--primary-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.description-block h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.description-block ol {
    padding-left: 2rem;
}

.description-block li {
    margin-bottom: 0.5rem;
}

#controls-container {
    display: grid;
    gap: 2rem;
}

.control-panel {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.control-panel h2 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

.control-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e9ecef;
}

.control-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.control-section h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* KNN specific viz buttons */

.viz-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 1rem;
}

.toggle-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color-dark);
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.4);
    transform: translateY(-2px);
}

/* KNN specific K control */
.k-control {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* KNN specific K slider styling */
.k-control input[type="range"] {
    flex: 1;
    background: linear-gradient(90deg, #e74c3c, #f39c12, #27ae60);
}

/* KNN specific value display */
.k-value-display {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: bold;
    font-size: 0.9rem;
}

.k-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: #6c757d;
}

.k-label {
    font-weight: 500;
}

.k-explanation {
    background: #e3f2fd;
    padding: 0.75rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.k-effect {
    font-size: 0.9rem;
    color: var(--text-color);
    font-weight: 500;
}

#distance-metric {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    background: white;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

#distance-metric:focus {
    border-color: var(--primary-color);
}

/* KNN specific mode buttons */
.mode-buttons {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    gap: 10px;
}

/* KNN specific button variations */
.mode-btn[data-mode="cats"].active {
    background: var(--cat-color);
    border-color: var(--cat-color);
}

.mode-btn[data-mode="dogs"].active {
    background: var(--dog-color);
    border-color: var(--dog-color);
}

.mode-btn[data-mode="classify"].active {
    background: var(--test-color);
    border-color: var(--test-color);
}

/* KNN specific data and viz button styles */
.data-buttons button {
    background: var(--secondary-color);
    color: white;
}

.data-buttons button:hover {
    background: #27ae60;
    transform: translateY(-2px);
}

.viz-buttons button {
    background: #f39c12;
    color: white;
}

.viz-buttons button:hover {
    background: #e67e22;
    transform: translateY(-2px);
}

/* KNN specific visualization container */
#visualization-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
}

@media (max-width: 1024px) {
    #visualization-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

/* KNN specific canvas styling */
#knn-canvas {
    border: 2px solid #e9ecef;
    border-radius: 8px;
    cursor: crosshair;
    background: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
    max-width: 100%;
    height: auto;
}

#knn-canvas:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* KNN specific legend and canvas elements */

.canvas-legend {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

/* Contenedor para los botones de acción de datos debajo del canvas */
.data-actions-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
}

.legend-section h4 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--text-color);
    font-size: 1rem;
}

.legend-items {
    display: grid;
    gap: 0.75rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    flex-shrink: 0;
    border: 2px solid white;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
}

.legend-color.cat {
    background: var(--cat-color);
}

.legend-color.dog {
    background: var(--dog-color);
}

.legend-color.test {
    background: var(--test-color);
}


.legend-color.neighbor {
    background: var(--secondary-color);
    border: 2px solid white;
    box-shadow: 0 0 0 2px var(--secondary-color);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    flex-shrink: 0;
}

.distance-explanation {
    display: grid;
    gap: 0.5rem;
}

.distance-type {
    padding: 0.5rem;
    background: white;
    border-radius: 6px;
    border-left: 3px solid var(--primary-color);
    font-size: 0.85rem;
}

/* Nuevos estilos para explicaciones y características */
.feature-list {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.feature-list li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.interpretation-note {
    background: linear-gradient(135deg, #fff3e0, #f3e5f5);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
    margin-top: 1rem;
    font-style: italic;
}

.cat-highlight {
    color: var(--cat-color);
    font-weight: bold;
    background: rgba(231, 76, 60, 0.1);
    padding: 2px 4px;
    border-radius: 4px;
}

.dog-highlight {
    color: var(--dog-color);
    font-weight: bold;
    background: rgba(243, 156, 18, 0.1);
    padding: 2px 4px;
    border-radius: 4px;
}

/* Explicación del algoritmo */
.algorithm-explanation {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--shadow);
    border: 1px solid #e9ecef;
}

.algorithm-explanation h4 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.step-card {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.step-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.2);
}

.step-number {
    background: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin: 0 auto 1rem;
}

.step-card h5 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.step-card p {
    color: #6c757d;
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 0;
}

/* Guía de uso */
.usage-guide {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--shadow);
    border-left: 5px solid var(--secondary-color);
}

.usage-guide h4 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.usage-steps {
    display: grid;
    gap: 1rem;
}

.usage-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.usage-step:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.step-icon {
    font-size: 2rem;
    min-width: 3rem;
    text-align: center;
}

.usage-step strong {
    color: var(--text-color);
    display: block;
    margin-bottom: 0.25rem;
}

.usage-step p {
    margin: 0;
    color: #6c757d;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Mejoras del canvas */
.canvas-explanation {
    margin-bottom: 1rem;
}

.axis-info {
    display: flex;
    justify-content: center;
    margin-bottom: 0.5rem;
    width: 100%;
}

.x-axis {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: #6c757d;
    padding: 0 2rem;
}

.axis-label.x-axis {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 600px;
    font-size: 0.85rem;
    color: #666;
    padding: 0 20px;
}

.axis-title {
    flex: 1;
}

.axis-title:first-child {
    text-align: left;
}

.axis-title:last-child {
    text-align: right;
}

.axis-name {
    font-weight: bold;
    color: var(--primary-color);
    padding: 0.25rem 1rem;
    background: #e3f2fd;
    border-radius: 15px;
    white-space: nowrap;
}

/* Mejora del posicionamiento del eje Y */
.y-axis-label {
    position: absolute;
    left: -65px;
    top: 50%;
    transform: translateY(-50%);
    height: 400px;
    display: flex;
    align-items: center;
}

.y-axis-text {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    font-size: 0.85rem;
    color: #666;
}

.y-axis-text .axis-name {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    padding: 1rem 0.25rem;
}

.axis-end {
    font-size: 0.75rem;
    color: #999;
    font-weight: 500;
}

.canvas-wrapper {
    position: relative;
    display: inline-block;
    margin: 1rem 0;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.canvas-overlay {
    position: absolute;
    top: 2px;
    left: 2px;
    width: calc(100% - 4px);
    height: calc(100% - 4px);
    pointer-events: none;
    border-radius: 6px;
}

.quadrant-labels {
    position: relative;
    width: 100%;
    height: 100%;
}

.quadrant {
    position: absolute;
    padding: 0.4rem 0.6rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: bold;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(3px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.quadrant.top-left {
    top: 10%;
    left: 10%;
    color: var(--cat-color);
    border-color: rgba(231, 76, 60, 0.3);
    background: rgba(231, 76, 60, 0.1);
}

.quadrant.top-right {
    top: 10%;
    right: 10%;
    color: #9b59b6;
    border-color: rgba(155, 89, 182, 0.3);
    background: rgba(155, 89, 182, 0.1);
}

.quadrant.bottom-left {
    bottom: 12%;
    left: 10%;
    color: #95a5a6;
    border-color: rgba(149, 165, 166, 0.3);
    background: rgba(149, 165, 166, 0.1);
}

.quadrant.bottom-right {
    bottom: 12%;
    right: 10%;
    color: var(--dog-color);
    border-color: rgba(243, 156, 18, 0.3);
    background: rgba(243, 156, 18, 0.1);
}

.quadrant small {
    display: block;
    font-weight: normal;
    font-size: 0.65rem;
    opacity: 0.85;
    margin-top: 0.2rem;
    line-height: 1.2;
}

/* Estilos para resultados de clasificación mejorados */
.result-header {
    background: linear-gradient(135deg, #e8f5e8, #f0f8f0);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border-left: 4px solid var(--secondary-color);
}

.result-header h5 {
    margin: 0 0 0.75rem 0;
    color: var(--text-color);
    font-size: 1.2rem;
    text-align: center;
}

.confidence-meter {
    text-align: center;
}

.confidence-bar {
    width: 100%;
    height: 12px;
    background: #e9ecef;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 0.5rem;
    border: 1px solid #dee2e6;
}

.confidence-fill {
    height: 100%;
    transition: width 0.3s ease;
    border-radius: 6px;
}

.confidence-text {
    font-weight: bold;
    font-size: 0.9rem;
    color: var(--text-color);
}

.classification-details {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    margin-bottom: 1rem;
}

.characteristics-list {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.characteristics-list li {
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.neighbors-list {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    max-height: 120px;
    overflow-y: auto;
}

.neighbors-list li {
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
    font-family: 'Courier New', monospace;
}

.vote-summary {
    display: flex;
    gap: 1rem;
    margin: 0.5rem 0;
    flex-wrap: wrap;
}

.vote-item {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
    border: 2px solid;
}

.vote-item.cat {
    background: rgba(231, 76, 60, 0.1);
    color: var(--cat-color);
    border-color: var(--cat-color);
}

.vote-item.dog {
    background: rgba(243, 156, 18, 0.1);
    color: var(--dog-color);
    border-color: var(--dog-color);
}

.classification-process {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.classification-process h5 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.classification-process ol {
    margin: 0;
    padding-left: 1.5rem;
}

.classification-process li {
    margin-bottom: 0.5rem;
    line-height: 1.4;
    font-size: 0.9rem;
}

/* Mejoras para tooltips en tiempo real */
#tooltip {
    background: rgba(0, 0, 0, 0.95);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    pointer-events: none;
    z-index: 1000;
    max-width: 250px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    white-space: pre-line;
    line-height: 1.4;
}

/* Estilos para las pestañas de configuración */
.config-tabs {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.tab-headers {
    display: flex;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.tab-header {
    flex: 1;
    padding: 1rem;
    border: none;
    background: transparent;
    color: #6c757d;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    font-size: 0.9rem;
}

.tab-header:hover {
    background: #e9ecef;
    color: var(--text-color);
}

.tab-header.active {
    background: white;
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: bold;
}

.tab-content {
    min-height: 300px;
}

.tab-panel {
    display: none;
    padding: 1.5rem;
    animation: fadeIn 0.3s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Config Cards mejoradas */
.config-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

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

.config-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.config-header h4 {
    margin: 0;
    color: var(--text-color);
    font-size: 1.1rem;
}

.config-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
}

/* Control K mejorado */
.k-control-advanced {
    position: relative;
    margin-bottom: 1rem;
}

.k-control-advanced input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: linear-gradient(90deg, #e74c3c, #f39c12, #27ae60);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.k-control-advanced input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 3px solid var(--primary-color);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.k-control-advanced input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 3px solid var(--primary-color);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* Selector de métricas mejorado */
.metric-selector {
    display: grid;
    gap: 0.75rem;
}

.metric-option {
    position: relative;
}

.metric-option input[type="radio"] {
    display: none;
}

.metric-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.metric-label:hover {
    border-color: var(--primary-color);
    background: #f0f8ff;
}

.metric-option input[type="radio"]:checked+.metric-label {
    border-color: var(--primary-color);
    background: #e3f2fd;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.metric-icon {
    font-size: 1.5rem;
    min-width: 2rem;
    text-align: center;
}

.metric-info strong {
    display: block;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.metric-info small {
    color: #6c757d;
    font-size: 0.8rem;
}

/* Botones de acción mejorados */
.data-actions {
    display: grid;
    gap: 1rem;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
    text-align: left;
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary-color), #3498db);
    color: white;
}

.action-btn.primary:hover {
    background: linear-gradient(135deg, #2980b9, var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.action-btn.secondary {
    background: linear-gradient(135deg, #95a5a6, #7f8c8d);
    color: white;
}

.action-btn.secondary:hover {
    background: linear-gradient(135deg, #7f8c8d, #95a5a6);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(149, 165, 166, 0.3);
}

.btn-icon {
    font-size: 1.5rem;
    min-width: 2rem;
}

.btn-content {
    flex: 1;
}

.btn-text {
    display: block;
    font-weight: bold;
    margin-bottom: 0.25rem;
}

.btn-content small {
    opacity: 0.9;
    font-size: 0.8rem;
}

/* Toggles de visualización */
.visual-toggles {
    display: grid;
    gap: 1rem;
}

.toggle-option {
    background: white;
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid #e9ecef;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.toggle-label input[type="checkbox"] {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 50px;
    height: 24px;
    background: #ccc;
    border-radius: 12px;
    transition: background 0.3s ease;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    top: 2px;
    left: 2px;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-label input[type="checkbox"]:checked+.toggle-slider {
    background: var(--primary-color);
}

.toggle-label input[type="checkbox"]:checked+.toggle-slider::before {
    transform: translateX(26px);
}

.toggle-info strong {
    display: block;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.toggle-info small {
    color: #6c757d;
    font-size: 0.8rem;
}

/* Sección de interacción */
.interaction-section {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--secondary-color);
}

.interaction-section h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.mode-description {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #6c757d;
    line-height: 1.5;
}

/* K-Means specific styles integrated with existing design system */
.kmeans-visualization {
    text-align: center;
    margin: 1.5rem 0;
}

@media (max-width: 768px) {
    .content-grid {
        margin: 1rem 0;
        gap: 1rem;
    }

    #visualization-container {
        gap: 1rem;
    }

    .canvas-container {
        padding: 1rem;
    }

    .canvas-container h2 {
        font-size: 1.2rem;
        margin-bottom: 1rem;
    }

    #knn-canvas {
        width: 100%;
        height: auto;
        max-width: 100%;
    }

    .canvas-legend {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1rem;
    }

    .mode-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }

    .mode-btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

    .data-actions-container {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        margin-top: 0.5rem;
        margin-bottom: 1rem;
    }

    .quadrant {
        font-size: 0.65rem;
        padding: 0.3rem 0.4rem;
    }

    .quadrant small {
        font-size: 0.55rem;
        margin-top: 0.1rem;
    }

    /* KNN specific responsive adjustments */
    .config-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .metric-label {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .action-btn {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
}

/* =============================================================
     * Updated layout overrides for the refactored KNN demo
     * ============================================================= */

#visualization-container.knn-demo {
    display: flex;
    flex-direction: column;
    gap: var(--demo-spacing-lg);
    width: min(100%, 1180px);
    margin: var(--demo-spacing-lg) auto;
}

@media (max-width: 1024px) {
    #visualization-container.knn-demo {
        width: 100%;
        padding-inline: var(--demo-spacing-sm);
        margin: var(--demo-spacing) 0;
    }
}

.knn-demo .controls-panel {
    width: 100%;
    background: var(--demo-surface);
    border: 1px solid var(--demo-border);
    border-radius: var(--demo-radius-lg);
    padding: var(--demo-spacing-lg);
    box-shadow: var(--demo-shadow-sm);
    display: flex;
    flex-direction: column;
    gap: var(--demo-spacing);
}

.knn-demo .controls-panel-title {
    margin: 0;
}

.knn-demo .control-section {
    position: relative;
    background: var(--demo-surface-alt);
    border: 1px solid var(--demo-border);
    border-radius: var(--demo-radius);
    padding: calc(var(--demo-spacing) + .1rem) var(--demo-spacing);
    padding-left: calc(var(--demo-spacing) + .35rem);
    box-shadow: var(--demo-shadow-sm);
    display: flex;
    flex-direction: column;
    gap: var(--demo-spacing-sm);
}

.knn-demo .control-section::before {
    content: "";
    position: absolute;
    left: var(--demo-spacing-sm);
    top: var(--demo-spacing-sm);
    bottom: var(--demo-spacing-sm);
    width: 4px;
    border-radius: var(--demo-radius-sm);
    background: var(--demo-gradient-accent);
}

.knn-demo .control-section h4 {
    margin: 0;
    font-size: 1.05rem;
    color: var(--demo-accent);
}

.knn-demo .control-description {
    margin: 0;
    color: var(--demo-neutral);
    font-size: .9rem;
}

.knn-demo .mode-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--demo-spacing-sm);
}

.knn-demo .mode-btn {
    flex: 1 1 120px;
    justify-content: center;
    text-align: center;
    font-weight: 600;
}

.knn-demo .mode-btn.active[data-mode="cats"] {
    background: color-mix(in srgb, var(--knn-cat-color) 90%, #000);
    border-color: color-mix(in srgb, var(--knn-cat-color) 75%, #000);
    color: #fff;
}

.knn-demo .mode-btn.active[data-mode="dogs"] {
    background: color-mix(in srgb, var(--knn-dog-color) 90%, #000);
    border-color: color-mix(in srgb, var(--knn-dog-color) 75%, #000);
    color: #fff;
}

.knn-demo .mode-btn.active[data-mode="classify"] {
    background: color-mix(in srgb, var(--knn-test-color) 90%, #000);
    border-color: color-mix(in srgb, var(--knn-test-color) 75%, #000);
    color: #fff;
}

.knn-demo .data-actions-container {
    display: grid;
    gap: var(--demo-spacing-sm);
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.knn-demo .action-btn {
    display: flex;
    align-items: center;
    gap: .65rem;
    justify-content: flex-start;
    text-align: left;
    width: 100%;
}

.knn-demo .action-btn.secondary {
    background: linear-gradient(145deg, var(--demo-surface-alt), color-mix(in srgb, var(--demo-surface-alt) 75%, var(--demo-accent)));
    color: var(--demo-accent);
    border-color: color-mix(in srgb, var(--demo-accent) 40%, var(--demo-border));
}

.knn-demo .action-btn .btn-icon {
    font-size: 1.25rem;
    line-height: 1;
}

.knn-demo .action-btn small {
    display: block;
    font-size: .75rem;
    opacity: .8;
}

.knn-demo .demo-control-group {
    display: flex;
    flex-direction: column;
    gap: var(--demo-spacing-xs);
}

.knn-demo .demo-range-input {
    margin-top: var(--demo-spacing-xs);
}

.knn-demo .viz-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--demo-spacing-sm);
}

.knn-demo .toggle-btn.active {
    background: var(--demo-accent);
    border-color: color-mix(in srgb, var(--demo-accent) 70%, #000);
    color: #fff;
}

.knn-demo .demo-info-card {
    border-radius: var(--demo-radius);
    box-shadow: var(--demo-shadow-sm);
    background: linear-gradient(135deg, color-mix(in srgb, var(--demo-surface) 90%, var(--demo-accent)), var(--demo-surface));
    border: 1px solid color-mix(in srgb, var(--demo-accent) 25%, var(--demo-border));
    padding: calc(var(--demo-spacing) * .85);
    display: grid;
    gap: var(--demo-spacing-sm);
}

.knn-demo .demo-info-card h4 {
    margin: 0;
    color: var(--demo-accent);
    font-size: 1.15rem;
}

.knn-demo .demo-info-card .stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--demo-spacing-sm);
}

.knn-demo .demo-info-card .stat-tile {
    background: color-mix(in srgb, var(--demo-surface) 85%, #fff);
    border: 1px solid color-mix(in srgb, var(--demo-accent) 18%, var(--demo-border));
    border-radius: var(--demo-radius);
    padding: var(--demo-spacing-sm);
    display: flex;
    flex-direction: column;
    gap: .25rem;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .4);
}

.knn-demo .demo-info-card .stat-label {
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: color-mix(in srgb, var(--demo-accent) 45%, var(--demo-text));
    font-weight: 700;
}

.knn-demo .demo-info-card .stat-value {
    font-size: 1.35rem;
    font-weight: 700;
    color: color-mix(in srgb, var(--demo-accent) 75%, var(--demo-text));
}

.knn-demo .demo-info-card .stat-helper {
    font-size: .75rem;
    color: color-mix(in srgb, var(--demo-text) 75%, var(--demo-accent));
}

.knn-demo .canvas-container {
    background: var(--demo-surface);
    border: 1px solid var(--demo-border);
    border-radius: var(--demo-radius-lg);
    padding: var(--demo-spacing-lg);
    box-shadow: var(--demo-shadow-sm);
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: var(--demo-spacing);
}

.knn-demo .canvas-container h2 {
    margin: 0;
    font-size: 1.35rem;
    color: var(--demo-accent);
}

.knn-demo .canvas-wrapper {
    position: relative;
    border-radius: var(--demo-radius);
    overflow: hidden;
    border: 1px solid var(--demo-border);
    box-shadow: var(--demo-shadow-sm);
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

.knn-demo #knn-canvas {
    width: 100%;
    height: auto;
    display: block;
    background: var(--demo-surface-alt);
}

.knn-demo .quadrant {
    font-size: .75rem;
    text-transform: none;
}

.knn-demo .quadrant small {
    font-size: .7rem;
}

.knn-demo .canvas-legend {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: var(--demo-spacing);
    background: var(--demo-surface-alt);
    border: 1px solid var(--demo-border);
    border-radius: var(--demo-radius);
    padding: var(--demo-spacing);
}

.knn-demo .legend-section h4 {
    margin: 0 0 .65rem;
    font-size: 1rem;
    color: var(--demo-accent);
}

.knn-demo .legend-item {
    gap: .55rem;
    font-size: .9rem;
}

.knn-demo .distance-type {
    background: var(--demo-surface);
    border-left: 4px solid var(--demo-accent);
    padding: .6rem .75rem;
    border-radius: var(--demo-radius-sm);
    font-size: .85rem;
    color: var(--demo-text);
}

.knn-demo .distance-type strong {
    color: var(--demo-accent);
}

@media (max-width: 768px) {
    .knn-demo .mode-buttons {
        flex-direction: column;
    }

    .knn-demo .mode-btn {
        width: 100%;
    }

    .knn-demo .controls-panel,
    .knn-demo .canvas-container {
        padding: var(--demo-spacing);
    }
}

/* New Vertical Layout Styles */
.knn-vertical-layout {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin: 2rem 0;
}

/* Explicit ordering to ensure correct layout */
.knn-vertical-layout .steps {
    order: 0;
}

.knn-vertical-layout .top-controls {
    order: 1;
}

.knn-vertical-layout .canvas-container {
    order: 2;
}

.knn-vertical-layout .bottom-controls {
    order: 3;
}

/* Match linear regression controls styling */
.knn-vertical-layout .controls-panel {
    background: var(--demo-surface);
    border: 1px solid var(--demo-border);
    border-radius: var(--demo-radius);
    padding: 1.5rem;
    box-shadow: var(--demo-shadow-sm);
}

.knn-vertical-layout .control-section {
    margin-bottom: 1rem;
}

.knn-vertical-layout .control-section:last-child {
    margin-bottom: 0;
}

.knn-vertical-layout .mode-buttons {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.knn-vertical-layout .mode-buttons .mode-btn {
    flex: 1 1 auto;
    min-width: 120px;
    padding: 0.45rem 0.85rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, transform 0.1s, box-shadow 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    white-space: nowrap;
}

/* Inactive tint for cats button */
.knn-vertical-layout .mode-buttons .mode-btn[data-mode="cats"] {
    background: color-mix(in srgb, var(--knn-cat-color, #e74c3c) 15%, #fff);
    border-color: color-mix(in srgb, var(--knn-cat-color, #e74c3c) 60%, #fff);
    color: color-mix(in srgb, var(--knn-cat-color, #e74c3c) 80%, #000);
}

.knn-vertical-layout .mode-buttons .mode-btn[data-mode="cats"]:hover {
    background: color-mix(in srgb, var(--knn-cat-color, #e74c3c) 30%, #fff);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px color-mix(in srgb, var(--knn-cat-color, #e74c3c) 30%, transparent);
}

/* Inactive tint for dogs button */
.knn-vertical-layout .mode-buttons .mode-btn[data-mode="dogs"] {
    background: color-mix(in srgb, var(--knn-dog-color, #f39c12) 15%, #fff);
    border-color: color-mix(in srgb, var(--knn-dog-color, #f39c12) 60%, #fff);
    color: color-mix(in srgb, var(--knn-dog-color, #f39c12) 80%, #000);
}

.knn-vertical-layout .mode-buttons .mode-btn[data-mode="dogs"]:hover {
    background: color-mix(in srgb, var(--knn-dog-color, #f39c12) 30%, #fff);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px color-mix(in srgb, var(--knn-dog-color, #f39c12) 30%, transparent);
}

/* Inactive tint for classify button */
.knn-vertical-layout .mode-buttons .mode-btn[data-mode="classify"] {
    background: color-mix(in srgb, var(--knn-test-color, #9b59b6) 15%, #fff);
    border-color: color-mix(in srgb, var(--knn-test-color, #9b59b6) 60%, #fff);
    color: color-mix(in srgb, var(--knn-test-color, #9b59b6) 80%, #000);
}

.knn-vertical-layout .mode-buttons .mode-btn[data-mode="classify"]:hover {
    background: color-mix(in srgb, var(--knn-test-color, #9b59b6) 30%, #fff);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px color-mix(in srgb, var(--knn-test-color, #9b59b6) 30%, transparent);
}

/* Active states - fully saturated */
.knn-vertical-layout .mode-buttons .mode-btn.active[data-mode="cats"] {
    background: var(--knn-cat-color, #e74c3c);
    border-color: color-mix(in srgb, var(--knn-cat-color, #e74c3c) 80%, #000);
    color: #fff;
    box-shadow: 0 3px 10px color-mix(in srgb, var(--knn-cat-color, #e74c3c) 40%, transparent);
}

.knn-vertical-layout .mode-buttons .mode-btn.active[data-mode="dogs"] {
    background: var(--knn-dog-color, #f39c12);
    border-color: color-mix(in srgb, var(--knn-dog-color, #f39c12) 80%, #000);
    color: #fff;
    box-shadow: 0 3px 10px color-mix(in srgb, var(--knn-dog-color, #f39c12) 40%, transparent);
}

.knn-vertical-layout .mode-buttons .mode-btn.active[data-mode="classify"] {
    background: var(--knn-test-color, #9b59b6);
    border-color: color-mix(in srgb, var(--knn-test-color, #9b59b6) 80%, #000);
    color: #fff;
    box-shadow: 0 3px 10px color-mix(in srgb, var(--knn-test-color, #9b59b6) 40%, transparent);
}

/* Adjust canvas container for vertical layout */
.knn-vertical-layout .canvas-container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
}

/* Switch Styles */
.knn-switch-group {
    margin-bottom: 0.75rem;
}

.knn-switch-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.knn-switch-text {
    font-size: 0.95rem;
    color: var(--demo-text);
}

.knn-switch-wrapper {
    position: relative;
    width: 50px;
    height: 26px;
}

.knn-switch-input {
    opacity: 0;
    width: 0;
    height: 0;
}

.knn-switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--demo-border);
    transition: 0.3s;
    border-radius: 26px;
}

.knn-switch-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

.knn-switch-input:checked+.knn-switch-slider {
    background-color: var(--demo-accent);
}

.knn-switch-input:checked+.knn-switch-slider:before {
    transform: translateX(24px);
}

.knn-switch-input:focus+.knn-switch-slider {
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--demo-accent) 30%, transparent);
}

/* New Layout Styles for Buttons and Switches */
.buttons-row {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
}

.buttons-row button {
    flex: 1;
}

.switches-row {
    display: flex;
    gap: 2rem;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
}

.knn-switch-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.knn-switch-text {
    font-weight: 500;
    color: var(--text-color);
    font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .knn-vertical-layout .controls-panel {
        padding: 1rem;
    }
}

/* --------------------------------------------------
   Vertical-layout control panel: keep buttons in row
   -------------------------------------------------- */

/* Strip unified-demos.css margin so flex/gap takes over */
.knn-vertical-layout .controls-panel .demo-btn {
    margin: 0;
    flex: 1;
}

/* Generar / Limpiar row */
.knn-vertical-layout .buttons-row {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.5rem;
}

/* Mode buttons (Añadir Gatos, Añadir Perros, Clasificar): compact & single row */
.knn-vertical-layout .mode-buttons {
    flex-wrap: nowrap;
}

.knn-vertical-layout .mode-buttons .mode-btn {
    min-width: 0;
    font-size: 0.8rem;
    padding: 0.35rem 0.55rem;
}