body {
    margin: 0;
    padding: 20px;
    background: #f5f5f5;
    font-family: Arial, sans-serif;
    overflow: hidden;
}
.map-container {
    position: relative;
    width: 1200px;
    height: 800px;
    margin: 0 auto;
    border: 2px solid #333;
    background: #fff;
}
#mapRenderer {
    width: 100%;
    height: 100%;
}
.controls {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 10;
    background: rgba(255,255,255,0.8);
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.floor-btn {
    padding: 8px 15px;
    margin: 0 5px 5px 0;
    border: none;
    background: #2196F3;
    color: white;
    border-radius: 3px;
    cursor: pointer;
    transition: background 0.3s;
}
.floor-btn.active {
    background: #0b7dda;
}
.floor-btn:hover {
    background: #1976D2;
}
.info-panel {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 10;
    background: rgba(255,255,255,0.9);
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    max-width: 200px;
}