* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            color: #333;
            line-height: 1.6;
        }

        /* Navigation */
        .navbar {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 1rem 0;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 2rem;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #4f46e5;
            text-decoration: none;
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .nav-links a {
            text-decoration: none;
            color: #374151;
            font-weight: 500;
            transition: color 0.3s ease;
            cursor: pointer;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #4f46e5;
            background: rgba(79, 70, 229, 0.1);
        }

        /* Sections */
        .section {
            min-height: 100vh;
            padding: 6rem 2rem 2rem;
            display: none;
        }

        .section.active {
            display: block;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        /* Home Section */
        .hero {
            text-align: center;
            padding: 4rem 0;
            color: white;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(45deg, #fff, #e2e8f0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.25rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-button {
            display: inline-block;
            background: linear-gradient(45deg, #4f46e5, #7c3aed);
            color: white;
            padding: 1rem 2rem;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(79, 70, 229, 0.6);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 4rem;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 16px;
            padding: 2rem;
            text-align: center;
            color: white;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: transform 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-5px);
        }

        .feature-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
        }

        /* Demo Section */
        .demo-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            height: calc(100vh - 8rem);
        }

        .form-panel {
            background: white;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
            overflow-y: auto;
        }

        .map-panel {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
        }

        #map {
            height: 100%;
            min-height: 400px;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #374151;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        .form-control {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid #e5e7eb;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: #4f46e5;
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

        .btn {
            background: linear-gradient(45deg, #4f46e5, #7c3aed);
            color: white;
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
            margin-top: 1rem;
        }

        .btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
        }

        .btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none;
        }

        .result-card {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            padding: 1rem;
            margin-top: 1rem;
            font-family: 'Courier New', monospace;
        }

        .result-item {
            margin-bottom: 0.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .result-label {
            font-weight: 600;
            color: #4f46e5;
        }

        .result-value {
            color: #374151;
        }

        /* Documentation Section */
        .doc-content {
            background: white;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
        }

        .doc-section {
            margin-bottom: 3rem;
        }

        .doc-section h2 {
            color: #1f2937;
            margin-bottom: 1rem;
            font-size: 1.75rem;
            border-bottom: 2px solid #e5e7eb;
            padding-bottom: 0.5rem;
        }

        .doc-section h3 {
            color: #374151;
            margin-bottom: 0.75rem;
            font-size: 1.25rem;
        }

        .code-block {
            background: #1f2937;
            color: #f9fafb;
            padding: 1rem;
            border-radius: 8px;
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
            overflow-x: auto;
            margin: 1rem 0;
        }

        .function-list {
            list-style: none;
            padding: 0;
        }

        .function-list li {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            padding: 1rem;
            margin-bottom: 0.75rem;
            transition: transform 0.2s ease;
        }

        .function-list li:hover {
            transform: translateX(5px);
            border-color: #4f46e5;
        }

        .function-name {
            font-weight: 700;
            color: #4f46e5;
            margin-bottom: 0.25rem;
        }

        .function-desc {
            color: #6b7280;
            font-size: 0.9rem;
        }

        /* API Section */
        .api-content {
            background: white;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
        }

        .endpoint-card {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: 12px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .endpoint-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .method {
            background: #10b981;
            color: white;
            padding: 0.25rem 0.75rem;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
        }

        .method.post {
            background: #3b82f6;
        }

        .endpoint-path {
            font-family: 'Courier New', monospace;
            font-weight: 600;
            color: #1f2937;
        }

        .param-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1rem 0;
        }

        .param-table th,
        .param-table td {
            padding: 0.75rem;
            text-align: left;
            border-bottom: 1px solid #e5e7eb;
        }

        .param-table th {
            background: #f9fafb;
            font-weight: 600;
            color: #374151;
        }

        .response-example {
            background: #1f2937;
            color: #f9fafb;
            padding: 1rem;
            border-radius: 8px;
            font-family: 'Courier New', monospace;
            font-size: 0.85rem;
            overflow-x: auto;
            margin-top: 1rem;
        }

        /* Loading States */
        .loading {
            display: none;
            text-align: center;
            padding: 2rem;
        }

        .loading.show {
            display: block;
        }

        .spinner {
            border: 3px solid #e5e7eb;
            border-top: 3px solid #4f46e5;
            border-radius: 50%;
            width: 30px;
            height: 30px;
            animation: spin 1s linear infinite;
            margin: 0 auto;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .hero h1 {
                font-size: 2.5rem;
            }

            .demo-layout {
                grid-template-columns: 1fr;
                grid-template-rows: auto 1fr;
            }

            .form-row {
                grid-template-columns: 1fr;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Scrollbar Styling */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }

        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }