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

body {
    font-family: Arial, sans-serif;
    overflow: hidden;
}

.container {
    display: flex;
    height: 100vh;
}

.toolbar {
    width: 250px;
    background: #2c3e50;
    color: white;
    padding: 20px;
    overflow-y: auto;
    z-index: 1000;
}

.tool-section {
    margin-bottom: 30px;
}

.tool-section h3 {
    margin-bottom: 10px;
    font-size: 14px;
    color: #ecf0f1;
}

.tool-btn, .action-btn {
    display: block;
    width: 100%;
    padding: 10px;
    margin-bottom: 5px;
    background: #34495e;
    color: white;
    border: 2px solid transparent;
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
}

.tool-btn:hover, .action-btn:hover {
    background: #3d566e;
}

.tool-btn.active {
    background: #3498db;
    border-color: #2980b9;
}

.action-btn {
    background: #e74c3c;
}

.action-btn:hover {
    background: #c0392b;
}

.color-palette {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.color-btn {
    width: 100%;
    height: 40px;
    border: 3px solid transparent;
    border-radius: 4px;
    cursor: pointer;
}

.color-btn.active {
    border-color: white;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.map-container {
    flex: 1;
    position: relative;
}

#map {
    width: 100%;
    height: 100%;
}

.ruler-display {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 15px;
    border-radius: 4px;
    font-size: 14px;
    display: none;
    z-index: 1000;
    pointer-events: none;
}

.stats-display {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 15px;
    border-radius: 4px;
    font-size: 14px;
    z-index: 1000;
    pointer-events: none;
}

.sum-display {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 15px;
    border-radius: 4px;
    font-size: 14px;
    z-index: 1000;
    pointer-events: none;
    display: none;
}

#nodeCount {
    font-size: 12px;
}

.node-count-item {
    display: flex;
    align-items: center;
    margin-bottom: 5px;
}

.node-count-color {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    margin-right: 8px;
    border: 2px solid white;
}

.node-count-text {
    color: #ecf0f1;
}

.leaflet-popup-content {
    margin: 8px;
    font-size: 13px;
}

.distance-label {
    background: white;
    padding: 4px 8px;
    border: 2px solid #3498db;
    border-radius: 3px;
    font-weight: bold;
    font-size: 12px;
    white-space: nowrap;
}

.node-marker {
    z-index: 1000 !important;
}

/* Sidebar toggle button */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 2000;
    background: #2c3e50;
    color: white;
    border: none;
    padding: 12px;
    font-size: 18px;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.sidebar-toggle:hover {
    background: #34495e;
}

/* Mobile styles */
@media (max-width: 768px) {
    .sidebar-toggle {
        display: block;
    }
    
    .toolbar {
        position: fixed;
        left: -250px;
        top: 0;
        height: 100vh;
        transition: left 0.3s ease;
        z-index: 1500;
        box-shadow: 2px 0 10px rgba(0,0,0,0.3);
    }
    
    .toolbar.open {
        left: 0;
    }
    
    .map-container {
        width: 100%;
    }
    
    /* Adjust sum display position on mobile to avoid toggle button */
    .sum-display {
        top: 70px;
        left: 10px;
    }
    
    /* Overlay when sidebar is open */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 1400;
    }
    
    .sidebar-overlay.show {
        display: block;
    }
}