/* ============================================
   H.A.N.S. - Holistic Analysis & Neural System
   Sistema de Análisis de Flotación
   ============================================ */

:root {
    /* Paleta de colores - Tema Industrial/Tech */
    --primary: #00f0ff;
    --primary-dark: #00a8b3;
    --secondary: #ff006e;
    --accent: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --copper: #b87333;
    
    /* Fondos */
    --bg-dark: #0a0a0f;
    --bg-card: rgba(15, 15, 25, 0.9);
    --bg-card-hover: rgba(20, 20, 35, 0.95);
    --bg-input: rgba(10, 10, 20, 0.8);
    
    /* Textos */
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #4a5568;
    
    /* Bordes */
    --border-color: rgba(0, 240, 255, 0.2);
    --border-glow: rgba(0, 240, 255, 0.5);
    
    /* Sombras */
    --shadow-primary: 0 0 20px rgba(0, 240, 255, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #00f0ff 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #ff006e 0%, #8b5cf6 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a0f 0%, #1a1a2e 100%);
    --gradient-copper: linear-gradient(135deg, #b87333 0%, #cd9b5a 100%);
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Bordes */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset y base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Fondo animado */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--gradient-dark);
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.5;
    animation: float 15s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.5; }
    90% { opacity: 0.5; }
    100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

/* Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
    gap: var(--spacing-md);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-size: 1.3rem;
    color: var(--bg-dark);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.4); }
    50% { box-shadow: 0 0 20px 10px rgba(0, 240, 255, 0.1); }
}

.logo-text h1 {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 4px;
}

.logo-text .subtitle {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.65rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.header-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.sheet-selector,
.fy-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sheet-selector label,
.fy-selector label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.sheet-selector select,
.fy-selector select {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    min-width: 120px;
}

.header-stats {
    display: flex;
    gap: var(--spacing-md);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    min-width: 80px;
}

.stat-value {
    font-family: 'Orbitron', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Main Container */
.main-container {
    display: grid;
    grid-template-columns: 260px 1fr 320px;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    min-height: calc(100vh - 120px);
}

/* Panels */
.left-panel, .right-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.panel-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    backdrop-filter: blur(10px);
}

.panel-section h2 {
    font-family: 'Orbitron', monospace;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.panel-section h2 i {
    font-size: 0.8rem;
}

/* Upload Section */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.upload-area:hover {
    border-color: var(--primary);
    background: rgba(0, 240, 255, 0.05);
}

.upload-area.dragover {
    border-color: var(--primary);
    background: rgba(0, 240, 255, 0.1);
    transform: scale(1.02);
}

.upload-content i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.upload-content p {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.upload-content span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.upload-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(0, 0, 0, 0.3);
    display: none;
}

.upload-progress.active {
    display: block;
}

.upload-progress .progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    width: 0;
    transition: width 0.3s ease;
}

.file-info {
    margin-top: var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--success);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* KPI Section */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.kpi-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 240, 255, 0.1);
}

.kpi-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 240, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-size: 0.9rem;
}

.kpi-content {
    display: flex;
    flex-direction: column;
}

.kpi-value {
    font-family: 'Orbitron', monospace;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.kpi-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* Filters */
.filters-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.filter-group label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.range-inputs {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.range-inputs input {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.8rem;
    width: 60px;
}

.range-inputs span {
    color: var(--text-muted);
}

.filter-group select {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
}

.filter-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.btn-apply, .btn-reset {
    flex: 1;
    padding: var(--spacing-sm);
    border: none;
    border-radius: var(--radius-sm);
    font-family: 'Orbitron', monospace;
    font-weight: 600;
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.btn-apply {
    background: var(--gradient-primary);
    color: var(--bg-dark);
}

.btn-reset {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-apply:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.btn-reset:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

/* Rec Comparison */
.comparison-toggle {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.toggle-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.8rem;
}

.toggle-option:hover {
    background: rgba(0, 240, 255, 0.05);
}

.toggle-option input[type="radio"] {
    accent-color: var(--primary);
}

.diff-stats {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

.diff-stats p {
    color: var(--text-secondary);
    text-align: center;
}

.diff-value {
    display: flex;
    justify-content: space-between;
    padding: 2px 0;
}

.diff-value span:first-child {
    color: var(--text-secondary);
}

.diff-value span:last-child {
    font-family: 'Share Tech Mono', monospace;
    color: var(--primary);
}

/* Center Panel */
.center-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    min-width: 0;
}

/* Tabs */
.tabs-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
}

.tabs {
    display: flex;
    gap: var(--spacing-xs);
}

.tab {
    flex: 1;
    padding: var(--spacing-sm);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: 'Orbitron', monospace;
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.tab:hover {
    color: var(--text-primary);
    background: rgba(0, 240, 255, 0.05);
}

.tab.active {
    background: rgba(0, 240, 255, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

/* Tab Content */
.tab-content {
    display: none;
    flex: 1;
}

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

/* Charts Grid - Flotación */
.charts-grid-flotacion {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    backdrop-filter: blur(10px);
}

.chart-card.wide-chart {
    grid-column: span 3;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.chart-header h3 {
    font-family: 'Orbitron', monospace;
    font-size: 0.8rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chart-header h3 i {
    color: var(--primary);
}

.chart-badge {
    font-size: 0.65rem;
    padding: 2px 8px;
    background: rgba(184, 115, 51, 0.2);
    border: 1px solid var(--copper);
    border-radius: var(--radius-full);
    color: var(--copper);
    font-family: 'Share Tech Mono', monospace;
}

.correlation-value {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.8rem;
    color: var(--accent);
    padding: 2px 8px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-sm);
}

.chart-controls {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.chart-controls select {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-primary);
    font-size: 0.75rem;
    cursor: pointer;
}

.chart-container {
    position: relative;
    height: 200px;
}

.chart-container.large {
    height: 280px;
}

.chart-container.xlarge {
    height: 400px;
}

/* Scatter Tab */
.scatter-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    margin-bottom: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    flex-wrap: wrap;
}

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

.control-group label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.control-group select,
.control-group input {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    color: var(--text-primary);
    font-family: inherit;
    min-width: 130px;
}

.btn-scatter {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--bg-dark);
    font-family: 'Orbitron', monospace;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.scatter-main {
    margin-bottom: var(--spacing-md);
}

.scatter-stats {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75rem;
}

.scatter-stats span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.scatter-stats .label {
    color: var(--text-secondary);
}

.scatter-stats .value {
    font-family: 'Share Tech Mono', monospace;
    color: var(--primary);
}

/* Correlation Matrix */
.correlation-matrix {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.correlation-matrix h3 {
    font-family: 'Orbitron', monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.correlation-matrix h3 i {
    color: var(--primary);
}

#correlationMatrix {
    display: grid;
    gap: 2px;
    font-size: 0.7rem;
}

.matrix-cell {
    padding: var(--spacing-xs);
    text-align: center;
    border-radius: 2px;
    font-family: 'Share Tech Mono', monospace;
}

.matrix-header {
    background: rgba(0, 240, 255, 0.1);
    color: var(--primary);
    font-weight: 600;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    padding: var(--spacing-sm) var(--spacing-xs);
}

.matrix-row-header {
    background: rgba(0, 240, 255, 0.1);
    color: var(--primary);
    font-weight: 600;
    text-align: left;
    padding-left: var(--spacing-sm);
}

/* Table Tab */
.table-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.search-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    flex: 1;
    max-width: 300px;
}

.search-box i {
    color: var(--text-secondary);
}

.search-box input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    flex: 1;
}

.search-box input:focus {
    outline: none;
}

.table-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-export {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    border-radius: var(--radius-sm);
    color: var(--success);
    font-family: 'Orbitron', monospace;
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-export:hover {
    background: var(--success);
    color: var(--bg-dark);
}

.btn-export.secondary {
    background: rgba(139, 92, 246, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.btn-export.secondary:hover {
    background: var(--accent);
    color: var(--text-primary);
}

.table-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    max-height: 500px;
    overflow-y: auto;
}

#dataTable {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

#dataTable thead {
    position: sticky;
    top: 0;
    background: rgba(0, 240, 255, 0.1);
    z-index: 10;
}

#dataTable th {
    padding: var(--spacing-sm);
    text-align: left;
    font-family: 'Orbitron', monospace;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

#dataTable td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid rgba(0, 240, 255, 0.05);
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.75rem;
}

#dataTable tbody tr:hover {
    background: rgba(0, 240, 255, 0.05);
}

.table-pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
}

.page-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.75rem;
}

.page-btn:hover,
.page-btn.active {
    border-color: var(--primary);
    color: var(--primary);
}

.page-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Projection Tab */
.projection-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    margin-bottom: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    flex-wrap: wrap;
}

.btn-project {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--gradient-secondary);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: 'Orbitron', monospace;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    white-space: nowrap;
}

.btn-project:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(255, 0, 110, 0.3);
}

.projection-chart {
    height: auto;
}

.projection-stats {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75rem;
    flex-wrap: wrap;
}

.projection-stats .stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.projection-stats .stat-label {
    color: var(--text-secondary);
}

.projection-stats .stat-value {
    color: var(--primary);
    font-family: 'Share Tech Mono', monospace;
}

/* Chat Section */
.chat-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    height: calc(100vh - 160px);
    overflow: hidden;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 240, 255, 0.05);
}

.chat-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chat-title i {
    font-size: 1rem;
    color: var(--primary);
}

.chat-title h2 {
    font-family: 'Orbitron', monospace;
    font-size: 0.9rem;
    font-weight: 600;
}

.chat-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: blink 2s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.message {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 90%;
    animation: messageIn 0.3s ease;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 28px;
    height: 28px;
    min-width: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

.message.bot .message-avatar {
    background: var(--gradient-primary);
    color: var(--bg-dark);
}

.message.user .message-avatar {
    background: var(--gradient-secondary);
    color: var(--text-primary);
}

.message-content {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    line-height: 1.5;
}

.message.bot .message-content {
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 4px;
}

.message.user .message-content {
    background: var(--gradient-secondary);
    border-bottom-right-radius: 4px;
}

.message-content ul {
    margin-top: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

.message-content li {
    margin-bottom: var(--spacing-xs);
}

.message-content code {
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.8rem;
}

.chat-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.suggestion {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid var(--accent);
    border-radius: var(--radius-full);
    color: var(--accent);
    font-size: 0.7rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.suggestion:hover {
    background: var(--accent);
    color: var(--text-primary);
}

.chat-input-container {
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
}

.chat-input {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.chat-input textarea {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    resize: none;
    max-height: 80px;
    transition: var(--transition-fast);
}

.chat-input textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.btn-send {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--bg-dark);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-send:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-primary);
}

.chat-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.action-btn {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.7rem;
    transition: var(--transition-fast);
}

.action-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Footer */
.main-footer {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.separator {
    color: var(--border-color);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-content p {
    font-family: 'Orbitron', monospace;
    color: var(--primary);
    font-size: 0.9rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

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

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

/* Typing indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--spacing-sm);
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.6; }
    40% { transform: scale(1); opacity: 1; }
}

/* Responsive */
@media (max-width: 1400px) {
    .main-container {
        grid-template-columns: 240px 1fr 280px;
    }
    
    .charts-grid-flotacion {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .chart-card.wide-chart {
        grid-column: span 2;
    }
}

@media (max-width: 1100px) {
    .main-container {
        grid-template-columns: 1fr;
    }
    
    .left-panel, .right-panel {
        order: 2;
    }
    
    .center-panel {
        order: 1;
    }
    
    .chat-section {
        height: 400px;
    }
    
    .charts-grid-flotacion {
        grid-template-columns: 1fr;
    }
    
    .chart-card.wide-chart {
        grid-column: span 1;
    }
    
    .header-controls {
        display: none;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 12px;
    }
    
    .main-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .header-stats {
        width: 100%;
        justify-content: space-around;
    }
    
    .scatter-controls,
    .projection-controls {
        flex-direction: column;
    }
    
    .control-group select,
    .control-group input {
        width: 100%;
    }
}