body {
        margin: 0;
        display: flex;
        height: 100vh;
        font-family: Arial, Helvetica, sans-serif;
    }

    #map {
        flex: 1;
    }

    #controls {
        position: absolute;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1000;
        background: rgba(255, 255, 255, 0.9);
        padding: 8px 14px;
        border-radius: 12px;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
        font-family: sans-serif;
        font-size: 10px;
        user-select: none;
    }

    #controls input {
        transform: scale(1.2);
        margin-right: 6px;
    }

    #map-loader {
        position: absolute;
        inset: 0;
        background: rgba(255, 255, 255, 0.6);
        /*backdrop-filter: blur(3px);*/
        display: none;
        justify-content: center;
        align-items: center;
        z-index: 9999;
    }

    #loader-content {
        text-align: center;
        font-family: sans-serif;
    }

    #loader-percent {
        font-size: 22px;
        font-weight: bold;
        margin-top: 8px;
    }

    #loader-text {
        font-size: 14px;
        color: #444;
        margin-top: 4px;
    }

    /* circle progress animation */
    #loader-ring {
        transform: rotate(-90deg);
    }

    .dots-loader {
        display: flex;
        gap: 8px;
        justify-content: center;
        margin-bottom: 10px;
    }

    .dots-loader div {
        width: 12px;
        height: 12px;
        background: #3b82f6;
        border-radius: 50%;
        animation: dots 0.7s infinite ease-in-out;
    }

    .dots-loader div:nth-child(2) {
        animation-delay: 0.15s;
    }

    .dots-loader div:nth-child(3) {
        animation-delay: 0.3s;
    }

    @keyframes dots {

        0%,
        80%,
        100% {
            transform: scale(0.4);
        }

        40% {
            transform: scale(1.0);
        }
    }