body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .calculator-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            padding: 2rem;
            margin: 2rem auto;
            max-width: 600px;
        }
        
        .company-header {
            text-align: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid #667eea;
        }
        
        .company-logo {
            font-size: 3rem;
            color: #667eea;
            margin-bottom: 1rem;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-control, .form-select {
            border-radius: 10px;
            border: 2px solid #e1e5e9;
            padding: 0.75rem 1rem;
            transition: all 0.3s ease;
        }
        
        .form-control:focus, .form-select:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
        }
        
        .btn-calculate {
            background: linear-gradient(45deg, #667eea, #764ba2);
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 25px;
            color: white;
            font-weight: 600;
            transition: all 0.3s ease;
            width: 100%;
        }
        
        .btn-calculate:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
        }
        
        .result-card {
            background: linear-gradient(45deg, #4facfe, #00f2fe);
            color: white;
            border-radius: 15px;
            padding: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            display: none;
        }
        
        .result-price {
            font-size: 2.5rem;
            font-weight: bold;
            margin: 1rem 0;
        }
        
        .btn-pdf {
            background: #28a745;
            border: none;
            padding: 0.5rem 1.5rem;
            border-radius: 20px;
            color: white;
            margin-top: 1rem;
        }
        
        .service-info {
            background: #f8f9fa;
            border-radius: 10px;
            padding: 1rem;
            margin-top: 1rem;
        }
        
        .loading {
            display: none;
            text-align: center;
            color: #667eea;
        }
        
        .error-message {
            background: #f8d7da;
            color: #721c24;
            padding: 1rem;
            border-radius: 10px;
            margin-top: 1rem;
            display: none;
        }