.submit-button.loading{background:#666;cursor:not-allowed}.submit-button.success{background:#28a745}.submit-button.error{background:#dc3545}.error-toast{position:fixed;top:20px;right:20px;background:#dc3545;color:#fff;padding:16px 24px;border-radius:8px;font-weight:500;transform:translate(100%);transition:transform .3s ease;z-index:1000;max-width:400px;box-shadow:0 4px 12px #dc35454d}.error-toast.show{transform:translate(0)}.success-toast{position:fixed;top:20px;right:20px;background:#28a745;color:#fff;padding:16px 24px;border-radius:8px;font-weight:500;transform:translate(100%);transition:transform .3s ease;z-index:1000;max-width:400px;box-shadow:0 4px 12px #28a7454d}.success-toast.show{transform:translate(0)}