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

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f5f5f5;
}

#container {
    position: relative;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
}

#title-overlay {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 20px;
    font-weight: bold;
    color: #333;
    z-index: 10;
    pointer-events: none;
    text-align: center;
    background: rgba(255, 255, 255, 0.85);
    padding: 4px 16px;
    border-radius: 6px;
}

#legend {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 10;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid #ccc;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 13px;
    line-height: 1.6;
}

.legend-title {
    font-weight: bold;
    margin-bottom: 4px;
    font-size: 13px;
    color: #333;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #444;
}

.legend-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

#network {
    width: 100%;
    height: 550px;
    border: 1px solid #ccc;
    background-color: #fff;
}

#info-panel {
    background: #fff;
    border: 1px solid #ccc;
    border-top: none;
    padding: 12px 16px;
    min-height: 60px;
}

#info-title {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin-bottom: 4px;
}

#info-text {
    font-size: 14px;
    color: #555;
    line-height: 1.5;
}