:root {
            --primary-color: #2A9D8F;
            --secondary-color: #E76F51;
            --tertiary-color: #264653;
            --light-color: #f8f9fa;
            --dark-color: #264653;
            --success-color: #2a9d8f;
            --warning-color: #e9c46a;
            --danger-color: #e76f51;
            --text-light: #f8f9fa;
            --text-dark: #333;
            
            --header-height: 70px;
            --transition: all 0.3s ease;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --shadow-strong: 0 8px 24px rgba(0, 0, 0, 0.15);
            --border-radius: 6px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Open Sans', sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            overflow: hidden;
            height: 100vh;
            width: 100vw;
        }
        
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        /* Header Styles */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background-color: rgba(38, 70, 83, 0.9);
            backdrop-filter: blur(5px);
            color: var(--text-light);
            z-index: 1000;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }
        
        header.scrolled {
            background-color: rgba(38, 70, 83, 1);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 100%;
            padding: 0 2rem;
            max-width: 1600px;
            margin: 0 auto;
        }
        
        .logo {
            display: flex;
            align-items: center;
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            font-size: 1.6rem;
            color: var(--text-light);
        }
        
        .logo i {
            margin-right: 0.7rem;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        
        /* Main Navigation */
        .nav-main {
            display: flex;
            align-items: center;
            height: 100%;
        }
        
        .nav-list {
            display: flex;
            list-style: none;
            height: 100%;
        }
        
        .nav-item {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }
        
        .nav-link {
            padding: 0 1.2rem;
            height: 100%;
            display: flex;
            align-items: center;
            color: var(--text-light);
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        
        .nav-link:hover {
            color: var(--primary-color);
        }
        
        .nav-link i.dropdown-icon {
            margin-left: 0.5rem;
            font-size: 0.8rem;
            transition: var(--transition);
        }
        
        .nav-item:hover .nav-link i.dropdown-icon {
            transform: rotate(180deg);
        }
        
        /* Dropdown Menu */
        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 220px;
            background-color: white;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
            box-shadow: var(--shadow-strong);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.2s ease-in-out;
            z-index: 100;
            overflow: hidden;
        }
        
        .nav-item:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .dropdown-item {
            display: block;
            padding: 0.8rem 1.5rem;
            color: var(--text-dark);
            font-weight: 400;
            transition: var(--transition);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }
        
        .dropdown-item:last-child {
            border-bottom: none;
        }
        
        .dropdown-item:hover {
            background-color: rgba(42, 157, 143, 0.1);
            color: var(--primary-color);
        }
        
        /* Mobile Menu Toggle */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.5rem;
            cursor: pointer;
        }
        
        /* Map Container */
        .map-container {
            height: 100vh;
            width: 100vw;
            z-index: 1;
        }
        
        #map {
            height: 100%;
            width: 100%;
        }
        
        /* Map Controls */
        .map-controls {
            position: absolute;
            top: calc(var(--header-height) + 20px);
            right: 20px;
            z-index: 500;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        
        .control-card {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            max-width: 300px;
        }
        
        .control-header {
            padding: 0.8rem 1.2rem;
            background-color: var(--tertiary-color);
            color: white;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }
        
        .control-header i {
            transition: var(--transition);
        }
        
        .control-header.collapsed i {
            transform: rotate(180deg);
        }
        
        .control-body {
            padding: 1.2rem;
            max-height: 300px;
            overflow-y: auto;
        }
        
        .control-body.collapsed {
            display: none;
        }
        
        /* Layer Controls */
        .layer-item {
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
        }
        
        .layer-item:last-child {
            margin-bottom: 0;
        }
        
        .layer-item label {
            margin-left: 0.5rem;
            cursor: pointer;
            font-size: 0.95rem;
        }
        
        /* Search Container */
        .search-container {
            position: absolute;
            top: calc(var(--header-height) + 20px);
            left: 20px;
            z-index: 500;
            width: 300px;
        }
        
        .search-input {
            width: 100%;
            padding: 0.8rem 1rem;
            padding-right: 3rem;
            border: none;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            font-size: 1rem;
        }
        
        .search-btn {
            position: absolute;
            top: 50%;
            right: 1rem;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--tertiary-color);
            font-size: 1.2rem;
            cursor: pointer;
        }
        
        /* Info Panel */
        .info-panel {
            position: absolute;
            bottom: 20px;
            left: 20px;
            z-index: 500;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            max-width: 400px;
            max-height: calc(100vh - var(--header-height) - 100px);
            overflow-y: auto;
            transform: translateX(-110%);
            transition: transform 0.3s ease-in-out;
        }
        
        .info-panel.active {
            transform: translateX(0);
        }
        
        .info-header {
            padding: 1rem;
            background-color: var(--tertiary-color);
            color: white;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .info-title {
            font-weight: 600;
            font-size: 1.1rem;
        }
        
        .info-close {
            background: none;
            border: none;
            color: white;
            font-size: 1.2rem;
            cursor: pointer;
        }
        
        .info-body {
            padding: 1.5rem;
        }
        
        .info-body h3 {
            margin-bottom: 0.8rem;
            color: var(--tertiary-color);
        }
        
        .info-body p {
            margin-bottom: 1rem;
        }
        
        .info-data {
            margin-top: 1.2rem;
        }
        
        .info-item {
            display: flex;
            justify-content: space-between;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(0,0,0,0.1);
        }
        
        .info-label {
            font-weight: 600;
            color: var(--tertiary-color);
        }
        
        .external-map-links {
            margin-top: 2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        
        .external-map-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.5rem 0.8rem;
            background-color: var(--tertiary-color);
            color: white;
            border-radius: var(--border-radius);
            font-size: 0.9rem;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        
        .external-map-btn i {
            margin-right: 0.5rem;
        }
        
        .external-map-btn:hover {
            background-color: var(--primary-color);
            transform: translateY(-2px);
        }
        
        /* Legend */
        .legend {
            position: absolute;
            bottom: 20px;
            right: 20px;
            z-index: 500;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            padding: 1rem;
            min-width: 200px;
        }
        
        .legend h3 {
            margin-bottom: 0.8rem;
            font-size: 1rem;
            color: var(--tertiary-color);
        }
        
        .legend-item {
            display: flex;
            align-items: center;
            margin-bottom: 0.5rem;
        }
        
        .legend-color {
            width: 20px;
            height: 20px;
            margin-right: 0.8rem;
            border-radius: 4px;
        }
        
        /* Loading Overlay */
        .loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(255, 255, 255, 0.8);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.3s, visibility 0.3s;
        }
        
        .loading-spinner {
            width: 50px;
            height: 50px;
            border: 5px solid rgba(42, 157, 143, 0.2);
            border-top: 5px solid var(--primary-color);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .loading-overlay.hidden {
            opacity: 0;
            visibility: hidden;
        }
        
        /* Responsive Design */
        @media (max-width: 992px) {
            .header-container {
                padding: 0 1rem;
            }
            
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                height: calc(100vh - var(--header-height));
                background-color: var(--tertiary-color);
                flex-direction: column;
                align-items: flex-start;
                transform: translateX(-100%);
                transition: transform 0.3s ease-in-out;
                z-index: 900;
                padding: 1rem;
                overflow-y: auto;
            }
            
            .nav-main.active {
                transform: translateX(0);
            }
            
            .nav-list {
                flex-direction: column;
                width: 100%;
                height: auto;
            }
            
            .nav-item {
                width: 100%;
                height: auto;
            }
            
            .nav-link {
                padding: 1rem;
                width: 100%;
                justify-content: space-between;
            }
            
            .dropdown-menu {
                position: static;
                width: 100%;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                max-height: 0;
                transition: max-height 0.3s ease-in-out;
                border-radius: 0;
                background-color: rgba(255, 255, 255, 0.05);
                overflow: hidden;
            }
            
            .nav-item.active .dropdown-menu {
                max-height: 500px;
            }
            
            .dropdown-item {
                color: var(--text-light);
                padding-left: 2rem;
            }
            
            .dropdown-item:hover {
                background-color: rgba(255, 255, 255, 0.1);
                color: var(--primary-color);
            }
            
            .mobile-toggle {
                display: block;
            }
            
            .map-controls {
                top: auto;
                bottom: 20px;
                right: 20px;
            }
            
            .search-container {
                width: calc(100% - 40px);
            }
            
            .legend {
                bottom: 80px;
            }
            
            .info-panel {
                width: calc(100% - 40px);
                max-width: none;
            }
        }
        
        @media (max-width: 576px) {
            .logo span {
                display: none;
            }
            
            .search-container {
                top: calc(var(--header-height) + 10px);
                left: 10px;
                width: calc(100% - 20px);
            }
            
            .map-controls {
                right: 10px;
                bottom: 10px;
            }
            
            .legend {
                bottom: auto;
                top: calc(var(--header-height) + 70px);
                right: 10px;
                left: 10px;
                width: calc(100% - 20px);
            }
            
            .info-panel {
                left: 10px;
                bottom: 10px;
                width: calc(100% - 20px);
            }
        }