.form-step {
    display: none;

    &.active {
        display: block;
    }
}

/* Form validation styles */
.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-control {
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23dc3545' viewBox='0 0 24 24'%3e%3ccircle cx='12' cy='12' r='10'/%3e%3cline x1='15' y1='9' x2='9' y2='15'/%3e%3cline x1='9' y1='9' x2='15' y2='15'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
    padding-right: calc(1.5em + 0.75rem);
}

.form-control:focus {
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-control.is-invalid:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.error-message {
    display: none;
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    line-height: 1.4;
    animation: slideDown 0.3s ease-out;
}

.error-message:before {
    content: "⚠ ";
    font-weight: bold;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form steps styling enhancements */
.form-steps {
    margin-bottom: 2rem;
}

.form-steps .step {
    transition: all 0.3s ease;
}

/* Button states for better UX */
.button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Responsive error messages */
@media (max-width: 768px) {
    .error-message {
        font-size: 0.8rem;
    }

    .form-control.is-invalid {
        background-size: calc(0.6em + 0.3rem) calc(0.6em + 0.3rem);
        padding-right: calc(1.2em + 0.6rem);
    }
}