body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
    color: white;
}

#map {
    width: 100%;
    height: 90%;
}

#nav {
    height: 61px;
    padding: 5px 10px;
    display: flex;
    align-items: center;
    background-color: #000000;
    border-bottom: 1px solid #ccc;
    gap: 10px;
}

select, input[type="number"] {
    padding: 5px 8px;
    border: 1px solid #aaa;
    border-radius: 4px;
    font-size: 14px;
}

button {
    padding: 6px 12px;
    border: none;
    background-color: #4a90e2;
    color: white;
    font-size: 14px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #357abd;
}