* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: #333;
            min-height: 100vh;
            padding: 20px;
        }
        
        .container {
            max-width: 1000px;
            margin: 0 auto;
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            overflow: hidden;
        }
        
        header {
            background: linear-gradient(to right, #4b6cb7, #182848);
            color: white;
            padding: 30px;
            text-align: center;
        }
        
        header h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
        }
        
        header p {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        
        .progress-container {
            background: #f1f1f1;
            padding: 15px;
            display: flex;
            justify-content: space-between;
            position: relative;
        }
        
        .progress-bar {
            position: absolute;
            height: 5px;
            background: #4b6cb7;
            top: 50%;
            left: 0;
            transform: translateY(-50%);
            transition: width 0.5s ease;
        }
        
        .progress-step {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: #ddd;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1;
            font-weight: bold;
        }
        
        .progress-step.active {
            background: #4b6cb7;
            color: white;
        }
        
        .form-container {
            padding: 30px;
        }
        
        .form-section {
            display: none;
        }
        
        .form-section.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        h2 {
            color: #4b6cb7;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        
        input, select, textarea {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 16px;
            transition: border 0.3s;
        }
        
        input:focus, select:focus, textarea:focus {
            border-color: #4b6cb7;
            outline: none;
        }
        
        textarea {
            min-height: 100px;
            resize: vertical;
        }
        
        .checkbox-group {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 10px;
            margin-top: 10px;
        }
        
        .checkbox-item {
            display: flex;
            align-items: center;
        }
        
        .checkbox-item input {
            width: auto;
            margin-right: 10px;
        }
        
        .btn-container {
            display: flex;
            justify-content: space-between;
            margin-top: 30px;
        }
        
        button {
            padding: 12px 25px;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        #prev-btn {
            background: #f1f1f1;
            color: #333;
        }
        
        #prev-btn:hover {
            background: #ddd;
        }
        
        #next-btn, #submit-btn {
            background: linear-gradient(to right, #4b6cb7, #182848);
            color: white;
        }
        
        #next-btn:hover, #submit-btn:hover {
            opacity: 0.9;
            transform: translateY(-2px);
        }
        
        .thank-you {
            text-align: center;
            padding: 50px 20px;
            display: none;
        }
        
        .thank-you i {
            font-size: 60px;
            color: #4CAF50;
            margin-bottom: 20px;
        }
        
        .thank-you h2 {
            color: #333;
            margin-bottom: 15px;
            border: none;
        }
        
        @media (max-width: 768px) {
            .container {
                border-radius: 10px;
            }
            
            header {
                padding: 20px;
            }
            
            header h1 {
                font-size: 2rem;
            }
            
            .form-container {
                padding: 20px;
            }
            
            .checkbox-group {
                grid-template-columns: 1fr;
            }
        }