/* Form validation styles */
.field-error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

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

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

/* Password strength indicator */
.password-strength {
    margin-top: 0.5rem;
}

.password-strength .progress {
    background-color: #e9ecef;
    border-radius: 0.25rem;
}

.password-strength .progress-bar {
    transition: width 0.3s ease;
}

.password-strength small {
    font-size: 0.75rem;
    margin-top: 0.25rem;
    display: block;
}

/* Alert animations */
.alert {
    border: none;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid #dc3545;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid #28a745;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border-left: 4px solid #ffc107;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid #17a2b8;
}

/* Form field focus states */
.wrap-input100 .form-control:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Custom checkbox styling */
.custom-control-input:checked ~ .custom-control-label::before {
    background-color: #007bff;
    border-color: #007bff;
}

.custom-control-input:focus ~ .custom-control-label::before {
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Error state for checkbox */
.custom-control-input.is-invalid ~ .custom-control-label::before {
    border-color: #dc3545;
}

.custom-control-input.is-invalid:focus ~ .custom-control-label::before {
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

/* Loading state for forms */
.form-loading {
    opacity: 0.6;
    pointer-events: none;
}

.form-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .field-error {
        font-size: 0.8rem;
    }
    
    .password-strength small {
        font-size: 0.7rem;
    }
}

/* Animation for error messages */
.field-error {
    animation: slideIn 0.3s ease-out;
}

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

/* Success state styling */
.is-valid {
    border-color: #28a745 !important;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25) !important;
}

.is-valid:focus {
    border-color: #28a745 !important;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25) !important;
}

/* Form group spacing */
.wrap-input100 {
    margin-bottom: 1rem;
}

.wrap-input100:last-child {
    margin-bottom: 0;
}

/* Button states */
.btn-primary:disabled {
    background-color: #6c757d;
    border-color: #6c757d;
    cursor: not-allowed;
}

.btn-primary:disabled:hover {
    background-color: #6c757d;
    border-color: #6c757d;
}