.payment-container{width:100%;max-width:600px;margin:0 auto;padding:20px}.payment-card{background:#fff;border-radius:12px;box-shadow:0 4px 12px #0000001a;overflow:hidden}.payment-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:30px;text-align:center}.payment-header h2{margin:0 0 20px;font-size:24px;font-weight:600}.order-summary{display:flex;justify-content:space-between;align-items:center;padding:15px;background:#ffffff1a;border-radius:8px}.order-id{font-size:14px;opacity:.9}.order-amount{font-size:24px;font-weight:700}.payment-form{padding:30px}.payment-methods{margin-bottom:30px}.payment-methods h3{font-size:16px;color:#333;margin-bottom:15px;font-weight:600}.payment-method-option{display:flex;align-items:center;padding:15px;border:2px solid #e0e0e0;border-radius:8px;margin-bottom:10px;cursor:pointer;transition:all .2s}.payment-method-option:hover{border-color:#667eea;background:#f8f9ff}.payment-method-option input[type=radio]{margin-right:12px;width:18px;height:18px;cursor:pointer}.method-name{font-size:16px;color:#333;font-weight:500}.checkout-container{margin:30px 0;padding:20px;background:#f8f9fa;border-radius:8px;min-height:200px}.pay-button{width:100%;padding:16px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:18px;font-weight:600;cursor:pointer;transition:all .3s;display:flex;align-items:center;justify-content:center;gap:10px}.pay-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.pay-button:disabled{opacity:.6;cursor:not-allowed;transform:none}.button-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}.form-error{margin-top:15px;padding:15px;background:#fee;border-left:4px solid #f44336;border-radius:4px;color:#c62828;font-size:14px}.payment-footer{padding:20px 30px;background:#f8f9fa;text-align:center;border-top:1px solid #e0e0e0}.secure-payment{margin:0;color:#666;font-size:14px}.loading,.error-message{text-align:center;padding:60px 30px;background:#fff;border-radius:12px;box-shadow:0 4px 12px #0000001a}.spinner{width:50px;height:50px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;margin:0 auto 20px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading p{color:#666;font-size:16px}.error-message h2{color:#f44336;margin-bottom:15px}.error-message p{color:#666;margin-bottom:20px}.error-message button{padding:12px 30px;background:#667eea;color:#fff;border:none;border-radius:6px;font-size:16px;cursor:pointer;transition:background .3s}.error-message button:hover{background:#5568d3}@media (max-width: 600px){.payment-container{padding:10px}.payment-header{padding:20px}.payment-header h2,.order-amount{font-size:20px}.payment-form{padding:20px}.pay-button{font-size:16px;padding:14px}}.app-container{text-align:center;padding:40px;background:#fff;border-radius:8px;box-shadow:0 2px 8px #0000001a;max-width:600px;margin:0 auto}.app-container h1{color:#333;margin-bottom:16px}.app-container p{color:#666;font-size:16px}*{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-color:#f5f5f5}#root{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}button{font-family:inherit}