@-webkit-keyframes shake{0%,to{-webkit-transform:translateX(0);transform:translateX(0)}25%{-webkit-transform:translateX(-5px);transform:translateX(-5px)}75%{-webkit-transform:translateX(5px);transform:translateX(5px)}}@keyframes shake{0%,to{-webkit-transform:translateX(0);transform:translateX(0)}25%{-webkit-transform:translateX(-5px);transform:translateX(-5px)}75%{-webkit-transform:translateX(5px);transform:translateX(5px)}}@-webkit-keyframes pulse{0%,to{opacity:.6}50%{opacity:.9}}@keyframes pulse{0%,to{opacity:.6}50%{opacity:.9}}@-webkit-keyframes fadeIn{0%{opacity:0;-webkit-transform:translateY(10px);transform:translateY(10px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0;-webkit-transform:translateY(10px);transform:translateY(10px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}.captcha-box{-webkit-transition:all .3s cubic-bezier(.4,0,.2,1);transition:all .3s cubic-bezier(.4,0,.2,1);background:linear-gradient(135deg,#f8f9fa,#fff 50%,#f8f9fa);border:2px solid #e9ecef!important}.captcha-box:hover{border-color:#ff5722!important;box-shadow:0 4px 15px rgba(255,87,34,.1);-webkit-transform:translateY(-2px);transform:translateY(-2px)}.captcha-box.captcha-loading{border-color:#007bff!important;box-shadow:0 0 20px rgba(0,123,255,.2)}.captcha-box.captcha-error{border-color:#dc3545!important;box-shadow:0 0 15px rgba(220,53,69,.2);-webkit-animation:shake .5s ease-in-out;animation:shake .5s ease-in-out}.captcha-box.captcha-success{border-color:#28a745!important;box-shadow:0 0 15px rgba(40,167,69,.2)}#refresh-captcha{-webkit-transition:all .3s ease;transition:all .3s ease;border:2px solid #007bff;border-radius:6px!important;padding:0}#refresh-captcha:hover:not(:disabled){background-color:#007bff;color:#fff;-webkit-transform:scale(1.05);transform:scale(1.05)}#refresh-captcha:disabled{opacity:.6;cursor:not-allowed;-webkit-animation:pulse 1.5s infinite;animation:pulse 1.5s infinite}.captcha-question-container{box-shadow:inset 0 1px 3px rgba(0,0,0,.1);-webkit-animation:fadeIn .5s ease-out;animation:fadeIn .5s ease-out}#captcha-question,.captcha-question-container{-webkit-transition:all .3s ease;transition:all .3s ease}#captcha-question{text-shadow:1px 1px 2px rgba(0,0,0,.1)}#captcha:focus{border-color:#ff5722!important;box-shadow:0 0 0 .2rem rgba(255,87,34,.25)!important}.input-group-text{background:linear-gradient(135deg,#007bff,#0056b3);border:none}.spinner-border-sm{width:1.2rem;height:1.2rem}@media (max-width:768px){.captcha-box{margin-bottom:1rem}#captcha-question{font-size:1.1em!important}}