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

        body {
            font-family: 'Poppins', sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .container {
            max-width: 1000px;
            width: 100%;
            background: #fff;
            border-radius: 20px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            display: flex;
            flex-direction: row;
        }

        .left-panel {
            flex: 1;
            background: linear-gradient(135deg, #4b6cb7 0%, #182848 100%);
            color: white;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
        }

        .logo {
            display: flex;
            align-items: center;
            margin-bottom: 30px;
        }

        .logo-icon {
            font-size: 32px;
            margin-right: 10px;
            color: #4b9fff;
        }

        .logo-text {
            font-size: 28px;
            font-weight: 700;
        }

        .logo-text span {
            color: #4b9fff;
        }

        .left-panel h2 {
            font-size: 28px;
            margin-bottom: 20px;
            line-height: 1.4;
        }

        .features {
            list-style: none;
            margin: 30px 0;
        }

        .features li {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }

        .features i {
            color: #4b9fff;
            margin-right: 10px;
            font-size: 20px;
        }

        .testimonial {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            padding: 20px;
            margin-top: 20px;
            position: relative;
        }

        .testimonial:before {
            content: """;
            font-size: 60px;
            position: absolute;
            top: -25px;
            left: 10px;
            color: rgba(255, 255, 255, 0.2);
        }

        .testimonial p {
            font-style: italic;
            margin-bottom: 10px;
        }

        .testimonial .author {
            font-weight: 600;
            color: #4b9fff;
        }

        .right-panel {
            flex: 1.5;
            padding: 40px;
        }

        .form-header {
            margin-bottom: 30px;
        }

        .form-header h1 {
            color: #2c3e50;
            font-size: 32px;
            margin-bottom: 10px;
        }

        .form-header p {
            color: #7f8c8d;
        }

        .form-container {
            display: flex;
            flex-direction: column;
        }

        .form-section {
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #ecf0f1;
        }

        .form-section:last-child {
            border-bottom: none;
        }

        .section-title {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
            color: #2c3e50;
        }

        .section-title i {
            background: #4b6cb7;
            color: white;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
        }

        .form-row {
            display: flex;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            flex: 1;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #2c3e50;
            font-weight: 500;
        }

        .form-group input, 
        .form-group select {
            width: 100%;
            padding: 14px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 16px;
            transition: all 0.3s;
        }

        .form-group input:focus, 
        .form-group select:focus {
            border-color: #4b6cb7;
            box-shadow: 0 0 0 3px rgba(75, 108, 183, 0.2);
            outline: none;
        }

        .plans-container {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
        }

        .plan-card {
            flex: 1;
            border: 2px solid #ecf0f1;
            border-radius: 10px;
            padding: 20px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .plan-card.selected {
            border-color: #4b6cb7;
            background: rgba(75, 108, 183, 0.05);
        }

        .plan-card h3 {
            color: #2c3e50;
            margin-bottom: 10px;
        }

        .price {
            font-size: 24px;
            font-weight: 700;
            color: #4b6cb7;
            margin-bottom: 15px;
        }

        .plan-features {
            list-style: none;
            font-size: 14px;
            color: #7f8c8d;
        }

        .plan-features li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
        }

        .plan-features i {
            color: #2ecc71;
            margin-right: 5px;
        }

        .billing-options {
            display: flex;
            gap: 20px;
            margin-top: 15px;
        }

        .billing-option {
            flex: 1;
            display: flex;
            align-items: center;
        }

        .billing-option input {
            margin-right: 10px;
        }

        .payment-methods {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
        }

        .payment-method {
            flex: 1;
            border: 2px solid #ecf0f1;
            border-radius: 8px;
            padding: 15px;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s;
        }

        .payment-method.selected {
            border-color: #4b6cb7;
            background: rgba(75, 108, 183, 0.05);
        }

        .payment-method i {
            font-size: 32px;
            margin-bottom: 10px;
            color: #4b6cb7;
        }

        .card-details {
            background: #f8f9fa;
            border-radius: 10px;
            padding: 20px;
            margin-top: 20px;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }

        .checkbox-group input {
            margin-right: 10px;
        }

        .submit-btn {
            background: linear-gradient(135deg, #4b6cb7 0%, #182848 100%);
            color: white;
            border: none;
            border-radius: 8px;
            padding: 16px;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            margin-top: 10px;
        }

        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .login-link {
            text-align: center;
            margin-top: 20px;
            color: #7f8c8d;
        }

        .login-link a {
            color: #4b6cb7;
            text-decoration: none;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .container {
                flex-direction: column;
            }
            
            .left-panel {
                padding: 30px;
            }
            
            .form-row {
                flex-direction: column;
                gap: 15px;
            }
            
            .plans-container, .payment-methods {
                flex-direction: column;
            }
        }

        .feature-highlight {
            display: inline-block;
            background: rgba(75, 156, 255, 0.2);
            color: #4b9fff;
            padding: 3px 8px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-left: 5px;
        }