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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.filters {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

button {
    padding: 8px 16px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

button:hover {
    background-color: #0056b3;
}

.charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(600px, 1fr));
    gap: 20px;
}

.chart-container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.chart-container h3 {
    margin-bottom: 15px;
    color: #333;
}

.chart {
    width: 100%;
    height: 300px;
}

.tooltip {
    position: absolute;
    padding: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    border-radius: 4px;
    pointer-events: none;
    font-size: 12px;
}

.axis line, .axis path {
    stroke: #ddd;
}

.axis text {
    font-size: 12px;
}

.legend {
    font-size: 12px;
}

.area {
    fill-opacity: 0.7;
}

.line {
    fill: none;
    stroke-width: 2;
}