#measureDistanceBtn {
    background-color: #28a745;
    border-color: #28a745;
    color: white;
    border-radius: 4px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    border: 1px solid transparent;
}

#measureDistanceBtn:hover {
    background-color: #218838;
    border-color: #1e7e34;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

#measureDistanceBtn:active {
    background-color: #1e7e34;
    border-color: #1c7430;
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

#measureDistanceBtn:disabled {
    background-color: #6c757d;
    border-color: #6c757d;
    color: #fff;
    cursor: not-allowed;
    opacity: 0.65;
}

#measureDistanceBtn:disabled:hover {
    background-color: #6c757d;
    border-color: #6c757d;
    transform: none;
    box-shadow: none;
}

.measure-distance-description {
    color: #6c757d;
    font-size: 12px;
    margin-top: 5px;
    line-height: 1.4;
}

.measure-distance-description i {
    color: #28a745;
    margin-right: 4px;
}