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

/* Body with Background Image */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    padding: 20px;
    background-image: url('Electrric-vehicle.webp');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-color: rgba(255, 255, 255, 0.9);
    background-blend-mode: multiply;
    min-height: 100vh;
}

/* Main Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background-color: rgba(76, 175, 80, 0.1);
    border-radius: 8px;
}

h1 {
    margin-bottom: 20px;
    color: #2c3e50;
}

h3 {
    color: #4CAF50;
    margin: 15px 0;
}

/* Tab Styles */
.tabs {
    display: flex;
    justify-content: center;
    margin: 20px 0;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 20px;
    background: #f0f0f0;
    border: none;
    cursor: pointer;
    margin: 5px;
    transition: all 0.3s ease;
    border-radius: 5px;
    font-weight: bold;
}

.tab-btn:hover {
    background: #ddd;
}

.tab-btn.active {
    background: #4CAF50;
    color: white;
}

/* Tab Content */
.tab-content {
    display: none;
    width: 100%;
    padding: 20px 0;
}

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

/* Visualization Containers */
.visualization-container {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 30px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    width: 100%;
}

.visualization {
    flex: 1;
    min-width: 60%;
    padding: 15px;
}

.conceptual-matter {
    flex: 1;
    min-width: 300px;
    padding: 20px;
    background: #f9f9f9;
    border-left: 1px solid #eee;
}

.conceptual-matter h3 {
    color: #4CAF50;
    margin-bottom: 15px;
}

.conceptual-matter p {
    color: #555;
    line-height: 1.6;
}

/* Full-width Variant */
.full-width-viz .visualization {
    min-width: 100%;
}

.full-width-viz .conceptual-matter {
    border-left: none;
    border-top: 1px solid #eee;
}

/* Chart Sizing */
.chart {
    width: 100%;
    height: 400px;
}

.chart-full {
    width: 100%;
    height: 500px;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #4CAF50;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
    transition: all 0.3s ease;
    font-weight: bold;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Responsive Design */
@media (max-width: 900px) {
    .visualization-container {
        flex-direction: column;
    }
    
    .visualization, 
    .conceptual-matter {
        min-width: 100%;
    }
    
    .conceptual-matter {
        border-left: none;
        border-top: 1px solid #eee;
    }
    
    .tab-content {
        padding: 10px 0;
    }
    
    .chart, .chart-full {
        height: 300px;
    }
}

/* Ensure D3/SVG charts don't overflow */
svg {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

#bubble-chart {
    width: 100%;
    overflow: visible;
    margin: 20px 0;
}

#bubble-chart svg {
    display: block;
    margin: 0 auto;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: visible;
}

.grid line {
    stroke: #eee;
    stroke-dasharray: 2,2;
}

.tooltip {
    position: absolute;
    padding: 8px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid #ddd;
    border-radius: 4px;
    pointer-events: none;
    font-size: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    opacity: 0;
    transition: opacity 0.3s;
}

/* Radial Chart Styles */
#radial {
    width: 100%;
    margin: 0 auto;
    text-align: center;
}

#radial svg {
    display: block;
    margin: 0 auto;
}

/* Dot Chart Styles */
#dotchart {
    width: 100%;
    margin: 0 auto;
}

#dotchart svg {
    display: block;
    margin: 0 auto;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.bar:hover {
    opacity: 0.8;
}

.chart-title {
    text-align: center;
    font-family: 'Segoe UI', sans-serif;
    color: #0c0c0cda;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
}