/**
 * Universal Email Validation Styles - LoveForm Pattern
 *
 * Provides visual-only validation feedback for email fields using the EmailValidator class.
 * Works with any email input that has the [data-email-field] attribute.
 *
 * Usage:
 *   1. Include this CSS file in your page
 *   2. Include email-validation-universal.js
 *   3. Add data-email-field attribute to email inputs
 *   4. Initialize: new EmailValidator(emailFieldElement)
 */

/* ============================================
   Base Email Field Styles
   ============================================ */

[data-email-field] {
    transition: border-bottom-color 0.2s ease, background-color 0.2s ease;
}

/* ============================================
   Validation State Styles
   ============================================ */

/* State: Empty - default gray border */
[data-validation-state="empty"][data-email-field],
input[data-email-field]:not([data-validation-state]) {
    border-bottom: 2px solid #e5e7eb !important;
    background: transparent !important;
}

/* State: Typing Invalid - red border, white background */
[data-validation-state="typing_invalid"][data-email-field] {
    border-bottom: 2px solid #d93900 !important;
    background: transparent !important;
}

/* State: Valid - blue border (LoveForm primary color) */
[data-validation-state="valid"][data-email-field] {
    border-bottom: 2px solid #289a96 !important;
    background: transparent !important;
}

/* State: Blurred Invalid - red border + pink background */
[data-validation-state="blurred_invalid"][data-email-field] {
    border-bottom: 2px solid #d93900 !important;
    background: #fff5f5 !important;
}

/* ============================================
   Return Link Visibility (Optional Feature)
   ============================================ */

/* Show return link only when email field is empty */
[data-email-field][data-validation-state="empty"] ~ [data-return-link],
[data-email-field]:not([data-validation-state]) ~ [data-return-link] {
    display: inline-flex !important;
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Hide return link when user starts typing */
[data-email-field][data-validation-state="typing_invalid"] ~ [data-return-link],
[data-email-field][data-validation-state="valid"] ~ [data-return-link],
[data-email-field][data-validation-state="blurred_invalid"] ~ [data-return-link] {
    display: none !important;
}

/* ============================================
   Suppress Wappler Error Messages
   ============================================ */

/* Hide all Wappler text validation messages (LoveForm uses only visual cues) */
[data-email-field] ~ .invalid-feedback,
[data-email-field] ~ .progressive-error-message,
form:has([data-email-field]) .invalid-feedback,
form:has([data-email-field]) .progressive-error-message {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    overflow: hidden !important;
    opacity: 0 !important;
}

/* ============================================
   Focus Styles
   ============================================ */

/* Remove default focus outline (border provides sufficient feedback) */
[data-email-field]:focus {
    outline: none;
}

/* ============================================
   Success Banner (Optional)
   ============================================ */

.email-success-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #d4edda;
    border-bottom: 2px solid #28a745;
    padding: 16px;
    text-align: center;
    z-index: 9999;
    animation: slideDown 0.3s ease-out;
    font-size: 14px;
    color: #155724;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: none;
}

.email-success-banner.show {
    display: block;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ============================================
   Responsive Adjustments
   ============================================ */

@media (max-width: 768px) {
    [data-email-field] {
        font-size: 16px; /* Prevent zoom on mobile */
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    [data-validation-state="blurred_invalid"][data-email-field] {
        background: white !important; /* Don't print pink backgrounds */
    }
}

/* ============================================
   Accessibility Enhancements
   ============================================ */

/* High contrast mode support */
@media (prefers-contrast: high) {
    [data-validation-state="typing_invalid"][data-email-field],
    [data-validation-state="blurred_invalid"][data-email-field] {
        border-bottom-width: 3px !important;
    }

    [data-validation-state="valid"][data-email-field] {
        border-bottom-width: 3px !important;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    [data-email-field] {
        transition: none;
    }

    [data-return-link] {
        transition: none;
    }

    .email-success-banner {
        animation: none;
    }
}