.invalid-feedback {
    color: #f30;
    font-size: 12px;
}
.captcha{
    width: 100%;
    margin-top: 1rem;
}
.captcha input {
    display: block;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.4); 
    border: none;
    border-bottom: 2px solid #27272a; 
    padding: 12px 4px;
    color: #e4e4e7; 
    outline: none; 
    font-size: 0.875rem;
    font-weight: 500; 
    letter-spacing: -0.025em; 
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}


.captcha input::placeholder {
    color: #3f3f46;
}


.captcha input:focus {
    border-bottom-color: #eab308; /* focus:border-yellow-500 */
}