.container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.card{background:#fff;border-radius:16px;padding:40px;box-shadow:0 20px 60px #0000004d;width:100%;max-width:500px}.error-card{text-align:center}.error-card h2{color:#e53e3e;margin-bottom:12px}.error-card p{color:#718096}.brand-header{text-align:center;margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid #e2e8f0}.brand-logo{display:flex;justify-content:center;margin:0 0 8px;line-height:0}.brand-logo img{display:block;height:30px;width:auto}.tagline{color:#718096;font-size:14px}.checkout-info{text-align:center;margin-bottom:32px}.amount{font-size:48px;font-weight:700;color:#2d3748;margin-bottom:8px}.description{color:#718096;font-size:16px}.loader{border:4px solid #e2e8f0;border-top:4px solid #667eea;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-text{text-align:center;color:#718096}.payment-form{margin-top:24px}.submit-button{width:100%;padding:16px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s;margin-top:24px}.submit-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 30px #667eea66}.submit-button:disabled{opacity:.6;cursor:not-allowed}.cancel-link{display:block;text-align:center;margin-top:16px;color:#718096;text-decoration:none;font-size:14px;transition:color .2s}.cancel-link:hover{color:#4a5568}.error-message{color:#e53e3e;background:#fff5f5;padding:12px;border-radius:8px;margin-bottom:16px;font-size:14px;text-align:center}.success-message{text-align:center;padding:40px 20px}.success-message h2{color:#38a169;margin-bottom:12px}.success-message p{color:#718096;margin-bottom:8px}.email-input{width:100%;padding:12px;margin-bottom:12px;border:1px solid #e2e8f0;border-radius:8px;font-size:16px;box-sizing:border-box}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;align-items:center;justify-content:center}#root{width:100%;max-width:600px;margin:0 auto;padding:20px}