/* Stili per il captcha matematico */
.captcha-container {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 2px solid #dee2e6;
    border-radius: 8px;
    padding: 15px;
    margin: 10px 0;
}

.captcha-question {
    font-size: 1.1em;
    font-weight: 600;
    color: #495057;
    background: #ffffff;
    padding: 8px 12px;
    border-radius: 5px;
    border: 1px solid #ced4da;
    display: inline-block;
    min-width: 120px;
    text-align: center;
}

.captcha-input {
    border: 2px solid #28a745 !important;
    border-radius: 5px;
}

.captcha-input:focus {
    border-color: #20c997 !important;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25) !important;
}

.captcha-help {
    color: #6c757d;
    font-size: 0.875em;
    margin-top: 5px;
}

.captcha-icon {
    color: #28a745;
    margin-right: 5px;
}

/* Animazione per errori captcha */
.captcha-error {
    animation: shake 0.5s ease-in-out;
    border-color: #dc3545 !important;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Stili per captcha con immagini */
.captcha-image-container {
    text-align: center;
    margin: 10px 0;
}

.captcha-image {
    border: 2px solid #dee2e6;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 100%;
    height: auto;
    cursor: pointer;
    transition: all 0.3s ease;
}

.captcha-image:hover {
    border-color: #28a745;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.captcha-refresh {
    background: none;
    border: none;
    color: #6c757d;
    font-size: 0.9em;
    cursor: pointer;
    margin-top: 5px;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.captcha-refresh:hover {
    background-color: #f8f9fa;
    color: #495057;
}

.captcha-refresh i {
    margin-right: 5px;
}

.image-captcha-input {
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    text-align: center;
}

.captcha-type-selector {
    margin-bottom: 15px;
    text-align: center;
}

.captcha-type-btn {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    color: #495057;
    padding: 8px 16px;
    margin: 0 5px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9em;
}

.captcha-type-btn.active {
    background: #28a745;
    border-color: #28a745;
    color: white;
}

.captcha-type-btn:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}

.captcha-type-btn.active:hover {
    background: #218838;
    border-color: #1e7e34;
}

/* Responsive design */
@media (max-width: 576px) {
    .captcha-question {
        font-size: 1em;
        min-width: 100px;
    }
    
    .captcha-container {
        padding: 10px;
    }
    
    .captcha-image {
        max-width: 100%;
    }
    
    .captcha-type-btn {
        padding: 6px 12px;
        margin: 2px;
        font-size: 0.8em;
    }
    
    .image-captcha-input {
        letter-spacing: 1px;
    }
}