.controls {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0; 
        }

        .locus-header {
            flex-shrink: 0;
            width: 100%;
            background: #ffffff;
            border-bottom: 1px solid #e0e0e0;
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            z-index: 30;
            min-height: 64px;
        }
        .locus-header .brand {
            display: flex;
            align-items: baseline;
            flex-wrap: wrap;
            gap: 10px 16px;
        }
        .locus-header .brand h1 {
            font-size: 26px;
            font-weight: 700;
            color: #1a1a1a;
            letter-spacing: 2px;
            margin: 0;
        }
        .locus-header .controls {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .locus-header .credit {
            font-size: 13px;
            color: #888;
            letter-spacing: 0.3px;
        }
        #cesiumContainer {
            flex: 1;
            width: 100%;
            height: 100%;
            min-height: 0;
        }

        .locus-header .brand .sub {
            font-size: 14px;
            color: #666;
            font-weight: 400;
        }
        .locus-header .brand .custom-message {
            font-size: 14px;
            color: #555;
            font-weight: 400;
            padding-left: 14px;
            border-left: 2px solid #d0d0d0;
            font-style: italic;
            white-space: nowrap;
        }
        .locus-header .brand .custom-message a {
            color: #0066cc;
            text-decoration: none;
            font-style: normal;
            font-weight: 500;
        }
        .locus-header .brand .custom-message a:hover {
            text-decoration: underline;
        }
        .locus-header .credit a {
            color: #555;
            text-decoration: none;
            transition: color 0.2s;
        }
        .locus-header .credit a:hover {
            color: #000;
        }