/**
 * Form Validation Styles
 * Visual feedback for client-side validation
 */

/* Error state for form inputs */
input.validation-error,
textarea.validation-error,
select.validation-error {
    border-color: #ef4444 !important;
    border-width: 2px !important;
    background-color: rgba(239, 68, 68, 0.05);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

input.validation-error:focus,
textarea.validation-error:focus,
select.validation-error:focus {
    outline: 2px solid #ef4444;
    outline-offset: 2px;
}

/* Error message styling */
.validation-error-message {
    display: block;
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    margin-bottom: 0.75rem;
    font-weight: 500;
    animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-0.5rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Success state (optional, for valid inputs) */
input.validation-success,
textarea.validation-success {
    border-color: #10b981;
    background-color: rgba(16, 185, 129, 0.05);
}

/* Accessibility: Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Form loading state (during submission) */
.secure-form.submitting {
    opacity: 0.6;
    pointer-events: none;
}

.secure-form.submitting button[type="submit"] {
    position: relative;
}

.secure-form.submitting button[type="submit"]::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    right: 1rem;
    margin-top: -8px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
    to { transform: rotate(360deg); }
}

/* Required field indicator */
label.required::after {
    content: ' *';
    color: #ef4444;
    font-weight: bold;
}

/* Help text for form fields */
.form-help-text {
    display: block;
    color: #94a3b8;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    font-style: italic;
}

/* Validation summary (for multiple errors) */
.validation-summary {
    background-color: rgba(239, 68, 68, 0.1);
    border: 2px solid #ef4444;
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.validation-summary h3 {
    color: #ef4444;
    font-size: 1rem;
    margin: 0 0 0.5rem 0;
    font-weight: 600;
}

.validation-summary ul {
    margin: 0;
    padding-left: 1.5rem;
    color: #991b1b;
}

.validation-summary ul li {
    margin-bottom: 0.25rem;
}