/* ===== VARIABLES ===== */
:root {
    --bg-light: #f4f7f9;
    --sidebar-dark: #1e293b;
    --card-bg: #ffffff;
    --accent: #4f46e5;
    --text-main: #334155;
    --text-muted: #64748b;
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;
    --border: #e2e8f0;
    --hover: #f8fafc;
}

/* ===== RESET & BASE ===== */
* { 
    box-sizing: border-box; 
    margin: 0;
    padding: 0;
}

body { 
    font-family: 'Inter', sans-serif; 
    background-color: var(--bg-light);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

/* ===== LAYOUT PRINCIPAL ===== */
.dashboard-container { 
    display: flex; 
    height: 100vh; 
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: 220px;
    background: var(--sidebar-dark);
    color: white;
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    flex-shrink: 0;
    overflow-y: auto;
}

.brand { 
    display: flex; 
    align-items: center; 
    gap: 10px; 
    margin-bottom: 2rem; 
}

.logo-icon { 
    background: var(--accent); 
    padding: 8px 12px; 
    border-radius: 6px; 
    font-weight: bold;
    font-size: 1.1rem;
}

.brand h2 {
    font-size: 1.2rem;
    font-weight: 600;
}

/* Menu */
.menu {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 2rem;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 6px;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.menu-item.active {
    background: var(--accent);
    color: white;
}

/* Filtres */
.filters-section h3 {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

.filter-group {
    margin-bottom: 1rem;
}

.filter-group label {
    display: block;
    font-size: 0.8rem;
    margin-bottom: 6px;
    color: rgba(255, 255, 255, 0.9);
}

.filter-group select,
.filter-group input[type="range"] {
    width: 100%;
    padding: 8px 10px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    font-size: 0.85rem;
}

.filter-group input[type="range"] {
    padding: 0;
    height: 6px;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    outline: none;
}

.filter-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.threshold-display {
    display: inline-block;
    margin-left: 8px;
    padding: 4px 10px;
    background: var(--accent);
    color: white;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Boutons */
.reset-btn {
    width: 100%;
    padding: 10px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 0.5rem;
}

.reset-btn:hover {
    background: #4338ca;
}

.reset-btn:active {
    transform: translateY(1px);
}

/* Statistiques sidebar */
.sidebar-stats {
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-stats h3 {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 1rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.8);
}

.stat-value {
    font-size: 1rem;
    font-weight: 600;
    color: white;
}

/* ===== CONTENU PRINCIPAL - FLEXBOX AMÉLIORÉ ===== */
.main-content {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    background-color: var(--bg-light);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Header */
.header {
    margin-bottom: 0.5rem;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.user-info {
    font-size: 0.9rem;
    color: var(--text-muted);
    background: #e2e8f0;
    padding: 6px 12px;
    border-radius: 6px;
    display: inline-block;
}

/* ===== CARTES DE GRAPHIQUES - FLEXBOX OPTIMISÉ ===== */
.chart-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chart-card.full-width {
    grid-column: 1 / -1;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 1rem;
}

.card-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-main);
    font-weight: 600;
    flex: 1;
    min-width: 200px;
}

.chart-controls {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.chart-controls select {
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background-color: white;
    font-size: 0.85rem;
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    cursor: pointer;
    min-width: 140px;
    max-width: 100%;
}

.chart-controls .btn {
    padding: 8px 16px;
    border-radius: 6px;
    border: none;
    background-color: var(--accent);
    color: white;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
    white-space: nowrap;
}

.chart-controls .btn:hover {
    background-color: #4338ca;
}

/* Description */
.chart-description {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--hover);
    border-radius: 8px;
    border-left: 4px solid var(--accent);
}

/* ===== CONTAINER GRAPHIQUE - CENTRAGE OPTIMISÉ ===== */
.chart-container {
    width: 100%;
    flex: 1;
    min-height: 350px;
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Wrapper pour centrer les SVG */
.chart-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 100%;
    height: 100%;
}

/* SVG communs */
.chart-wrapper svg {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
}

/* Zone de légende */
.chart-legend {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 1rem;
    padding: 0.75rem;
    min-height: 40px;
}

/* ===== HEATMAP - CENTRAGE AMÉLIORÉ ===== */
.heatmap-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.heatmap-svg {
    flex: 1;
    width: 100%;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.heatmap-legend-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 1rem;
    padding: 0.5rem;
}

.heatmap-legend {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    max-width: 300px;
    width: 100%;
}

.heatmap-gradient {
    width: 100%;
    height: 20px;
    border-radius: 4px;
    overflow: hidden;
}

.heatmap-labels {
    display: flex;
    justify-content: space-between;
    width: 100%;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.heatmap-cell {
    stroke: white;
    stroke-width: 1px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.heatmap-cell:hover {
    stroke: var(--text-main);
    stroke-width: 2px;
    filter: brightness(1.1);
}

.heatmap-axis text {
    font-size: 0.8rem;
    fill: var(--text-muted);
}

.heatmap-axis path,
.heatmap-axis line {
    stroke: var(--border);
}

/* ===== BAR CHART - CENTRAGE AMÉLIORÉ ===== */
.bar-chart-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.bar-chart-svg {
    width: 100%;
    height: calc(100% - 30px);
    margin: 0 auto;
}

.bar-chart-legend {
    height: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 0.5rem;
}

.bar-chart-svg .bar {
    transition: opacity 0.2s ease;
}

.bar-chart-svg .bar:hover {
    opacity: 0.8;
}

.bar-chart-svg .bar-label {
    font-size: 10px;
    font-weight: 600;
    pointer-events: none;
}

/* ===== HISTOGRAM - CENTRAGE AMÉLIORÉ ===== */
.histogram-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.histogram-svg {
    width: 100%;
    height: calc(100% - 50px);
    margin: 0 auto;
}

.histogram-svg .h0, 
.histogram-svg .h1 {
    transition: opacity 0.2s ease;
}

.histogram-svg .h0:hover, 
.histogram-svg .h1:hover {
    opacity: 0.8;
}

/* Légende histogramme - position fixe mais centrée */
.histogram-legend-container {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
    display: flex;
    justify-content: flex-end;
}

.histogram-legend {
    background: rgba(255, 255, 255, 0.95);
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-size: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 6px;
    backdrop-filter: blur(4px);
    max-width: 180px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-color {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
}

.legend-label {
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* ===== SIMULATEUR - FLEXBOX AMÉLIORÉ ===== */
.simulator {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    height: 100%;
}

.simulator-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.simulator-slider {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.simulator-slider label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.simulator-slider input[type="range"] {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    -webkit-appearance: none;
}

.simulator-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.simulator-result {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 10px;
    border: 2px solid var(--border);
    text-align: center;
    gap: 1rem;
    margin-top: auto;
}

.risk-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.2;
}

.risk-label {
    padding: 8px 20px;
    background: var(--accent);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
}

.simulator-insight {
    padding: 1rem;
    background: #f0f9ff;
    border-radius: 8px;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #0369a1;
    border-left: 4px solid #0ea5e9;
    text-align: center;
}

/* ===== INSIGHTS - FLEXBOX AMÉLIORÉ ===== */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.insight-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
    background: var(--hover);
    border-radius: 10px;
    transition: transform 0.2s ease;
    height: 100%;
    justify-content: flex-start;
}

.insight-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.insight-icon-wrapper {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.insight-icon {
    font-size: 1.8rem;
    padding: 12px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.insight-icon.danger { 
    background: #fef2f2; 
    color: var(--danger); 
}

.insight-icon.safe { 
    background: #f0fdf4; 
    color: var(--success); 
}

.insight-icon.threshold { 
    background: #fef3c7; 
    color: var(--warning); 
}

.insight-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.insight-text h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    line-height: 1.3;
}

.insight-text p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ===== GRID LAYOUT - FLEXIBLE ===== */
.charts-grid {
    display: grid;
    gap: 1.5rem;
}

.charts-grid.double {
    grid-template-columns: repeat(2, 1fr);
}

.charts-grid.triple {
    grid-template-columns: repeat(3, 1fr);
}

/* Grille à hauteur égale avec flexbox */
.charts-grid.equal-height {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.charts-grid.equal-height .chart-card {
    flex: 1;
    min-width: calc(50% - 0.75rem);
}

/* ===== TOOLTIP - AMÉLIORÉ ===== */
.tooltip {
    position: absolute;
    padding: 12px 16px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    pointer-events: none;
    z-index: 1000;
    border: 1px solid var(--border);
    font-size: 0.85rem;
    line-height: 1.4;
    max-width: 250px;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.tooltip h4 {
    margin: 0 0 8px 0;
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
}

.tooltip p {
    margin: 4px 0;
    color: var(--text-muted);
    text-align: center;
}

.tooltip .risk {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--danger);
    margin-top: 8px;
    text-align: center;
    display: block;
}

.tooltip .count {
    display: inline-block;
    padding: 4px 8px;
    background: var(--hover);
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0 auto;
}

/* ===== RESPONSIVE - FLEXIBLE ===== */
@media (max-width: 1400px) {
    .sidebar {
        width: 200px;
    }
    
    .chart-container {
        min-height: 320px;
    }
    
    .charts-grid.equal-height .chart-card {
        min-width: calc(50% - 0.75rem);
    }
}

@media (max-width: 1200px) {
    .charts-grid.double {
        grid-template-columns: 1fr;
    }
    
    .insights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sidebar {
        width: 200px;
    }
    
    .chart-container {
        min-height: 300px;
    }
    
    .charts-grid.equal-height {
        flex-direction: column;
    }
    
    .charts-grid.equal-height .chart-card {
        min-width: 100%;
    }
}

@media (max-width: 992px) {
    .dashboard-container {
        flex-direction: column;
        height: auto;
        min-height: 100vh;
    }
    
    .sidebar {
        width: 100%;
        padding: 1rem;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 1.5rem;
        max-height: none;
    }
    
    .brand {
        flex: 0 0 auto;
    }
    
    .menu {
        flex: 0 0 auto;
        flex-direction: row;
        margin-bottom: 0;
    }
    
    .filters-section {
        flex: 1;
        min-width: 250px;
    }
    
    .sidebar-stats {
        flex: 0 0 100%;
        display: flex;
        gap: 2rem;
        justify-content: center;
        border-top: none;
        padding-top: 0;
    }
    
    .chart-container {
        min-height: 350px;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    
    .charts-grid.triple {
        grid-template-columns: 1fr;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
    }
    
    .card-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1rem;
    }
    
    .chart-controls {
        width: 100%;
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }
    
    .chart-controls select {
        width: 100%;
        max-width: 300px;
    }
    
    .simulator-result {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .chart-container {
        min-height: 280px;
    }
    
    .heatmap-legend-container {
        margin-top: 0.5rem;
    }
    
    .histogram-legend-container {
        position: relative;
        top: 0;
        right: 0;
        justify-content: center;
        margin-top: 1rem;
    }
    
    .histogram-legend {
        max-width: 100%;
        width: 100%;
    }
}

@media (max-width: 576px) {
    .chart-container {
        min-height: 250px;
    }
    
    .card-header h3 {
        min-width: 100%;
        text-align: center;
    }
    
    .chart-controls select {
        min-width: 100%;
    }
    
    .insight-item {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .insight-icon-wrapper {
        margin-bottom: 0.5rem;
    }
    
    .simulator-result {
        padding: 1rem;
    }
    
    .charts-grid.double,
    .charts-grid.triple {
        grid-template-columns: 1fr;
    }
    
    .heatmap-legend {
        max-width: 100%;
    }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.chart-card {
    animation: fadeIn 0.3s ease-out;
}

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

.risk-label.high {
    animation: pulse 2s infinite;
}

/* ===== LOADING - CENTRÉ ===== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    font-size: 0.9rem;
    flex-direction: column;
    gap: 1rem;
    text-align: center;
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== UTILITAIRES FLEXBOX ===== */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.flex-row {
    display: flex;
    flex-direction: row;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-1 {
    flex: 1;
}

.flex-auto {
    flex: 0 0 auto;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

.justify-evenly {
    justify-content: space-evenly;
}

/* Classes pour les conteneurs centrés */
.centered-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.centered-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* Pour les petits graphiques */
.chart-card.compact .chart-container {
    min-height: 250px;
}

/* Pour aligner les titres de graphiques */
.chart-title-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

/* Espacement amélioré entre les éléments de contrôle */
.chart-control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
    align-items: center;
}

.chart-control-group label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-align: center;
}