/* Reduced Motion Support Added - 2025-07-23 */
/* Vendor Prefixes Added - 2025-07-23 */
/**
 * HVAC Trainer Registration Form Enhanced Styles
 *
 * @version 2.0.0
 */

/* Error Styles */
.hvac-form-errors {
    background-color: #fee;
    border: 1px solid #fcc;
    border-radius: 4px;
    padding: 1rem;
    margin-bottom: 2rem;
}

.hvac-form-errors h3 {
    color: #d8000c;
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.hvac-form-errors ul {
    margin: 0;
    padding-left: 1.5rem;
}

.hvac-form-errors li {
    color: #d8000c;
    margin-bottom: 0.25rem;
}

.error-message {
    color: #d8000c;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    margin-bottom: 0;
}

input.error,
select.error,
textarea.error {
    border-color: #fcc;
}

/* Main Container */
.hvac-registration-form-wrapper {

    max-width: 1200px;

    margin: 0 auto;

    padding: 2rem; /* IE fallback */

    padding: var(--hvac-spacing-xl) var(--hvac-spacing-md);

    background-color: #f9fafb;
}

/* Mobile Container Fixes */
@media screen and (max-width: 768px) {
    .hvac-registration-form-wrapper {
        padding: 20px !important; /* Ensure generous mobile padding */
        margin: 0 !important;
        max-width: none !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
}

@media screen and (max-width: 480px) {
    .hvac-registration-form-wrapper {
        padding: 15px !important; /* Slightly less but still comfortable */
    }
}

@media screen and (max-width: 375px) {
    .hvac-registration-form-wrapper {
        padding: 12px !important; /* Minimum comfortable padding for small screens */
    }
}

/* Form Card */
.hvac-registration-form {

    max-width: 800px;

    margin: 0 auto;

    padding: 2rem; /* IE fallback */

    padding: var(--hvac-spacing-xl);

    background-color: white;

    -webkit-webkit-webkit-border-radius: 4px;

    border-radius: 4px;

    border-radius: 4px; /* IE fallback */

    -webkit-border-radius: var(--hvac-border-radius);
    -webkit-box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); /* IE fallback */

    -webkit-box-shadow: var(--hvac-shadow-lg);

    box-shadow: var(--hvac-shadow-lg);

    border: 1px solid #e0e0e0; /* IE fallback */

    border: 1px solid var(--hvac-border);
}

/* Form Header */
.hvac-registration-form-header {

    text-align: center;

    margin-bottom: 2rem; /* IE fallback */

    margin-bottom: var(--hvac-spacing-xl);

    padding-bottom: 1rem; /* IE fallback */

    padding-bottom: var(--hvac-spacing-md);

    border-bottom: 1px solid #f0f0f0; /* IE fallback */

    border-bottom: 1px solid var(--hvac-border-light);
}

.hvac-registration-form h2 {

    color: #0274be; /* IE fallback */

    color: var(--hvac-primary);

    font-size: 1.8rem;

    margin-bottom: 0.5rem; /* IE fallback */

    margin-bottom: var(--hvac-spacing-sm);

    font-weight: 700;
}

.hvac-registration-form-header p {

    color: #757575; /* IE fallback */

    color: var(--hvac-text-light);

    font-size: 1rem;

    max-width: 600px;

    margin: 0 auto;
}

/* Form Sections */
.hvac-registration-form .form-section {

    margin-bottom: 2rem; /* IE fallback */

    margin-bottom: var(--hvac-spacing-xl);

    padding-bottom: 1.5rem; /* IE fallback */

    padding-bottom: var(--hvac-spacing-lg);

    border-bottom: 1px solid #f0f0f0; /* IE fallback */

    border-bottom: 1px solid var(--hvac-border-light);
}

.hvac-registration-form .form-section:last-child {
    margin-bottom: 0;

    padding-bottom: 0;

    border-bottom: none;
}

.hvac-registration-form .form-section h3 {

    color: #3a3f44; /* IE fallback */

    color: var(--hvac-secondary-dark);

    margin-bottom: 1rem; /* IE fallback */

    margin-bottom: var(--hvac-spacing-md);

    font-size: 1.3rem;

    font-weight: 600;

    padding-bottom: 0.5rem; /* IE fallback */

    padding-bottom: var(--hvac-spacing-sm);

    border-bottom: 1px dashed #f0f0f0; /* IE fallback */

    border-bottom: 1px dashed var(--hvac-border-light);
}

/* Form Grid Layout */
.hvac-registration-form .form-grid {

    display: grid;

    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));

    gap: 1rem; /* IE fallback */

    gap: var(--hvac-spacing-md);
}

/* Form Rows */
.hvac-registration-form .form-row {

    margin-bottom: 1rem; /* IE fallback */

    margin-bottom: var(--hvac-spacing-md);
}

/* Two-column layout */
.form-row-half {
    display: flex;
    gap: 1rem;
}

.form-row-half > div {
    flex: 1;
}

/* Three-column layout */
.form-row-thirds {
    display: flex;
    gap: 1rem;
}

.form-row-thirds > div {
    flex: 1;
}

/* Form Fields */
.hvac-registration-form label {

    display: block;

    margin-bottom: 0.5rem; /* IE fallback */

    margin-bottom: var(--hvac-spacing-sm);

    font-weight: 600;

    color: #333333; /* IE fallback */

    color: var(--hvac-text);

    font-size: 0.95rem;
}

.hvac-registration-form label .required {

    color: #d63638; /* IE fallback */

    color: var(--hvac-error);

    margin-left: 0.25rem; /* IE fallback */

    margin-left: var(--hvac-spacing-xs);
}

.hvac-registration-form input[type="text"],
.hvac-registration-form input[type="email"],
.hvac-registration-form input[type="password"],
.hvac-registration-form input[type="url"],
.hvac-registration-form textarea,
.hvac-registration-form select {

    width: 100%;

    padding: 0.85rem;

    border: 1px solid #e0e0e0; /* IE fallback */

    border: 1px solid var(--hvac-border);

    border-radius: 4px; /* IE fallback */

    border-radius: var(--hvac-border-radius);

    font-size: 1rem;

    -webkit-transition: border-color 0.2s, box-shadow 0.2s;

    background-color: #f9fafb;
}

.hvac-registration-form input[type="text"]:focus,
.hvac-registration-form input[type="email"]:focus,
.hvac-registration-form input[type="password"]:focus,
.hvac-registration-form input[type="url"]:focus,
.hvac-registration-form textarea:focus,
.hvac-registration-form select:focus {
    border-color: #0274be; /* IE fallback */

    border-color: var(--hvac-primary);

    outline: none;

    -webkit-box-shadow: 0 0 0 3px #e6f3fb;/* IE fallback */

    -webkit-box-shadow: 0 0 0 3px var(--hvac-primary-light);

    background-color: white;
}

.hvac-registration-form textarea {

    min-height: 120px;

    resize: vertical;
}

.hvac-registration-form select {

    -webkit-appearance: none;

    -moz-appearance: none;

    background-image: url("data: image/svg+xml;
    charset=utf-8,%3Csvg xmlns=';

    http: //www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23555' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");

    background-repeat: no-repeat;

    background-position: right 0.75rem center;

    background-size: 16px 12px;

    padding-right: 2.5rem;
}

/* Field Helper Text */
.hvac-registration-form .field-help {

    margin-top: 0.25rem; /* IE fallback */

    margin-top: var(--hvac-spacing-xs);

    font-size: 0.85rem;

    color: #757575; /* IE fallback */

    color: var(--hvac-text-light);
}

/* Submit Button Section */
.hvac-registration-form .form-submit {

    margin-top: 2rem; /* IE fallback */

    margin-top: var(--hvac-spacing-xl);

    text-align: center;
}

.hvac-registration-form input[type="submit"] {

    display: inline-block;

    padding: 0.85rem 2.5rem;

    background-color: #0274be; /* IE fallback */

    background-color: var(--hvac-primary);

    color: white;

    border: none;

    border-radius: 4px; /* IE fallback */

    border-radius: var(--hvac-border-radius);

    font-size: 1.1rem;

    font-weight: 600;

    cursor: pointer;

    text-align: center;

    -webkit-transition: background-color 0.2s, transform 0.1s;

    text-transform: uppercase;

    letter-spacing: 0.5px;

    -webkit-box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* IE fallback */

    -webkit-box-shadow: var(--hvac-shadow);
}

.hvac-registration-form input[type="submit"]:hover {

    background-color: #005fa3; /* IE fallback */

    background-color: var(--hvac-primary-dark);

    -webkit-transform: translateY(-2px);

    -ms-transform: translateY(-2px);

    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); /* IE fallback */

    box-shadow: var(--hvac-shadow-lg);
}

.hvac-registration-form input[type="submit"]:active {

    -webkit-transform: translateY(0);

    -ms-transform: translateY(0);
}

/* Checkbox & Radio Styles */
.hvac-registration-form .checkbox-group {

    display: -webkit-box;

    display: -ms-flexbox;

    display: flex;

    -webkit-box-orient: vertical;

    -webkit-box-direction: normal;

    -ms-flex-direction: column;

    gap: 0.5rem; /* IE fallback */

    gap: var(--hvac-spacing-sm);

    margin-top: 0.5rem; /* IE fallback */

    margin-top: var(--hvac-spacing-sm);
}

.hvac-registration-form .checkbox-group label {

    display: -webkit-box;

    display: -ms-flexbox;

    display: flex;

    -webkit-box-align: center;

    -ms-flex-align: center;

    align-items: center;

    gap: 0.5rem; /* IE fallback */

    gap: var(--hvac-spacing-sm);

    font-weight: normal;

    cursor: pointer;

    margin-bottom: 0;
}

.hvac-registration-form .checkbox-group input[type="checkbox"],
.hvac-registration-form .checkbox-group input[type="radio"] {

    width: 18px;

    height: 18px;

    cursor: pointer;
}

/* Error Messages */
.hvac-registration-form .hvac-errors {

    background-color: #ffebe9; /* IE fallback */

    background-color: var(--hvac-error-light);

    border: 1px solid #d63638; /* IE fallback */

    border: 1px solid var(--hvac-error);

    border-radius: 4px; /* IE fallback */

    border-radius: var(--hvac-border-radius);

    padding: 1rem; /* IE fallback */

    padding: var(--hvac-spacing-md);

    margin-bottom: 1.5rem; /* IE fallback */

    margin-bottom: var(--hvac-spacing-lg);

    color: #d63638; /* IE fallback */

    color: var(--hvac-error);
}

.hvac-registration-form .hvac-errors .error {

    margin: 0.25rem; /* IE fallback */

    margin: var(--hvac-spacing-xs) 0;
}

.hvac-registration-form .form-row.has-error input,
.hvac-registration-form .form-row.has-error select,
.hvac-registration-form .form-row.has-error textarea {

    border-color: #d63638; /* IE fallback */

    border-color: var(--hvac-error);
}

.hvac-registration-form .form-row.has-error .field-error {

    color: #d63638; /* IE fallback */

    color: var(--hvac-error);

    font-size: 0.85rem;

    margin-top: 0.25rem; /* IE fallback */

    margin-top: var(--hvac-spacing-xs);
}

/* Success Message */
.hvac-registration-form .hvac-success {

    background-color: #e8f5e9; /* IE fallback */

    background-color: var(--hvac-success-light);

    border: 1px solid #4caf50; /* IE fallback */

    border: 1px solid var(--hvac-success);

    border-radius: 4px; /* IE fallback */

    border-radius: var(--hvac-border-radius);

    padding: 1rem; /* IE fallback */

    padding: var(--hvac-spacing-md);

    margin-bottom: 1.5rem; /* IE fallback */

    margin-bottom: var(--hvac-spacing-lg);

    color: #4caf50; /* IE fallback */

    color: var(--hvac-success);
}

/* Login Link */
.hvac-login-link {

    margin-top: 1.5rem; /* IE fallback */

    margin-top: var(--hvac-spacing-lg);

    text-align: center;

    padding-top: 1rem; /* IE fallback */

    padding-top: var(--hvac-spacing-md);

    border-top: 1px solid #f0f0f0; /* IE fallback */

    border-top: 1px solid var(--hvac-border-light);

    font-size: 0.95rem;
}

.hvac-login-link a {

    color: #0274be; /* IE fallback */

    color: var(--hvac-primary);

    font-weight: 600;

    text-decoration: none;
}

.hvac-login-link a:hover {
    text-decoration: underline;
}

/* Progress Indicator for Multi-step Forms */
.hvac-registration-progress {

    margin-bottom: 2rem; /* IE fallback */

    margin-bottom: var(--hvac-spacing-xl);

    padding: 1rem; /* IE fallback */

    padding: var(--hvac-spacing-md);

    background-color: #f0f0f1; /* IE fallback */

    background-color: var(--hvac-secondary-light);

    border-radius: 4px; /* IE fallback */

    border-radius: var(--hvac-border-radius);

    display: -webkit-box;

    display: -ms-flexbox;

    display: flex;

    -webkit-box-pack: justify;

    -ms-flex-pack: justify;

    justify-content: space-between;

    position: relative;
}

.hvac-registration-progress::before {
    content: '';

    position: absolute;

    top: 50%;

    left: 1rem; /* IE fallback */

    left: var(--hvac-spacing-md);

    right: 1rem; /* IE fallback */

    right: var(--hvac-spacing-md);

    height: 2px;

    background-color: #e0e0e0; /* IE fallback */

    background-color: var(--hvac-border);

    -webkit-transform: translateY(-50%);

    -ms-transform: translateY(-50%);

    z-index: 1;
}

.hvac-registration-step {

    width: 30px;

    height: 30px;

    -webkit-border-radius: 50%;

    background-color: white;

    border: 2px solid #e0e0e0; /* IE fallback */

    border: 2px solid var(--hvac-border);

    display: -webkit-box;

    display: -ms-flexbox;

    display: flex;

    -webkit-box-align: center;

    -ms-flex-align: center;

    align-items: center;

    -webkit-box-pack: center;

    -ms-flex-pack: center;

    justify-content: center;

    font-weight: 600;

    position: relative;

    z-index: 2;
}

.hvac-registration-step.active {

    background-color: #0274be; /* IE fallback */

    background-color: var(--hvac-primary);

    border-color: #0274be; /* IE fallback */

    border-color: var(--hvac-primary);

    color: white;
}

.hvac-registration-step.completed {

    background-color: #4caf50; /* IE fallback */

    background-color: var(--hvac-success);

    border-color: #4caf50; /* IE fallback */

    border-color: var(--hvac-success);

    color: white;
}

/* Responsive Adjustments */

/* Reduced Motion Support Added - WCAG 2.1 Accessibility */
/* Respects user preference for reduced motion to prevent vestibular disorders */

@media (prefers-reduced-motion: reduce) {
    /* Disable all animations and transitions globally */
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-delay: 0s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        transition-delay: 0s !important;
        scroll-behavior: auto !important;
    }

    /* Remove specific transform animations */
    .hvac-animate-fade-in,
    .hvac-animate-scale-up,
    .hvac-animate-pulse,
    .hvac-animate-slide-in-right,
    .hvac-animate-slide-in-left,
    .hvac-animate-slide-in-bottom {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }

    /* Disable hover transformations */
    .hvac-card:hover,
    .hvac-stat-card:hover,
    .hvac-event-stat-card:hover,
    .hvac-button:hover,
    .hvac-email-submit:hover {
        transform: none !important;
        animation: none !important;
    }

    /* Keep essential visual feedback but remove motion */
    .hvac-card:hover,
    .hvac-stat-card:hover,
    .hvac-event-stat-card:hover {
        border-color: var(--hvac-primary, #0274be) !important;
        box-shadow: 0 0 0 2px rgba(2, 116, 190, 0.2) !important;
    }

    /* Disable loading spinner animation but keep visibility */
    .hvac-loading::after {
        animation: none !important;
        border-radius: 50% !important;
        border: 2px solid rgba(0, 0, 0, 0.2) !important;
        border-top-color: #333 !important;
    }

    /* Disable focus pulse animation */
    .hvac-button:focus,
    .hvac-email-submit:focus,
    .hvac-content button[type="submit"]:focus {
        animation: none !important;
    }

    /* Ensure smooth scrolling is disabled */
    html {
        scroll-behavior: auto !important;
    }

    /* Disable CSS Grid/Flexbox animations if any */
    .hvac-dashboard-stats .hvac-stat-card:nth-child(n),
    .hvac-event-summary-stats .hvac-event-stat-card:nth-child(n) {
        animation: none !important;
        opacity: 1 !important;
    }
}

/* Provide alternative visual feedback for reduced motion users */
@media (prefers-reduced-motion: reduce) {
    /* Enhanced border feedback instead of transform */
    .hvac-content button:hover,
    .hvac-content input[type="submit"]:hover,
    .hvac-content a:hover {
        outline: 2px solid var(--hvac-primary, #0274be) !important;

        outline-offset: 2px !important;
    }

    /* Enhanced color changes for interactive elements */
    .hvac-attendee-item:hover {
        background-color: var(--hvac-primary-light, #e6f3fb) !important;

        border-left: 4px solid var(--hvac-primary, #0274be) !important;
    }

    /* Static loading indicator */
    .hvac-loading {

        opacity: 0.7 !important;
    }

    .hvac-loading::after {
        content: "Loading..." !important;
        display: inline-block !important;
        font-size: 12px !important;
        color: #666 !important;
        border: none !important;
        background: none !important;
        border-radius: 0 !important;
        width: auto !important;
        height: auto !important;
        position: static !important;
        margin-left: 8px !important;
    }
}

@media (max-width: 768px) {
    .hvac-registration-form {
        padding: 1.5rem;
        /* IE fallback */
        padding: var(--hvac-spacing-lg);
    }

    .hvac-registration-form .form-grid {

        grid-template-columns: 1fr;
    }

    .hvac-registration-form h2 {

        font-size: 1.5rem;
    }

    .hvac-registration-progress {

        padding: 0.5rem; /* IE fallback */
        padding: var(--hvac-spacing-sm);
    }
}

@media (max-width: 480px) {
    .hvac-registration-form {
        padding: 1rem;
        /* IE fallback */
        padding: var(--hvac-spacing-md);
    }

    .hvac-registration-form h2 {

        font-size: 1.3rem;
    }

    .hvac-registration-form .form-submit input[type="submit"] {
        width: 100%;
    }
}

/* Focus Management Styles - WCAG 2.1 Compliance */
/* Added for keyboard accessibility and screen reader support */

/* Button Focus Styles */
.hvac-button:focus,
.hvac-content .button:focus,
.hvac-content button:focus,
.hvac-content input[type="submit"]:focus,
.hvac-email-submit:focus,
.hvac-filter-submit:focus,
.hvac-certificate-actions button:focus,
.hvac-certificate-actions a:focus {
    outline: 2px solid #005fcc;

    outline-offset: 2px;

    -webkit-box-shadow: 0 0 0 3px rgba(0, 95, 204, 0.2);

    box-shadow: 0 0 0 3px rgba(0, 95, 204, 0.2);

    border-radius: 4px;
}

/* Input Focus Styles */
.hvac-form-input:focus,
.hvac-content input[type="text"]:focus,
.hvac-content input[type="email"]:focus,
.hvac-content input[type="password"]:focus,
.hvac-content input[type="url"]:focus,
.hvac-content textarea:focus,
.hvac-content select:focus,
.hvac-email-form-row input:focus,
.hvac-email-form-row textarea:focus,
.hvac-filter-group input:focus,
.hvac-filter-group select:focus {
    outline: 2px solid #005fcc;

    outline-offset: 2px;

    border-color: #005fcc;

    box-shadow: 0 0 0 3px rgba(0, 95, 204, 0.2);
}

/* Link Focus Styles */
.hvac-content a:focus,
.hvac-event-link:focus,
.hvac-certificate-link:focus,
.hvac-attendee-profile-icon:focus,
.hvac-dashboard-nav a:focus,
.hvac-email-navigation a:focus {
    outline: 2px solid #005fcc;
    outline-offset: 2px;
    text-decoration: underline;
    background-color: rgba(0, 95, 204, 0.1);
    -webkit-border-radius: 2px;
}

/* Interactive Element Focus Styles */
.hvac-attendee-checkbox:focus,
.hvac-select-all-container input[type="checkbox"]:focus,
.hvac-modal-close:focus,
.hvac-certificate-table tr:focus {
    outline: 2px solid #005fcc;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(0, 95, 204, 0.2);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .hvac-content *:focus {
        outline: 3px solid #000000;
        outline-offset: 2px;
        background-color: #ffff00;
        color: #000000;
    }
}

/* Focus-visible polyfill support */

/* Reset focus for mouse users while preserving keyboard accessibility */
.js-focus-visible:focus:not(.focus-visible) {
    outline: none;

    -webkit-box-shadow: none;
}

/* Ensure focus is visible for keyboard users */
.js-focus-visible .focus-visible {

    outline: 2px solid #005fcc;

    outline-offset: 2px;
}

/* CSS Grid Fallbacks for IE */
.hvac-stats-row,
.hvac-dashboard-stats,
.hvac-certificate-stats {

    display: -ms-grid;

    -ms-grid-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Progressive enhancement for modern browsers */
@supports (display: grid) {
    .hvac-stats-row,
    .hvac-dashboard-stats,
    .hvac-certificate-stats {
        display: grid;
    }
}

/* Feature Detection Support */
@supports not (display: flex) {
    .hvac-content [class*="flex"] {
        display: table-cell;
        vertical-align: middle;
    }
}

@supports not (display: grid) {
    .hvac-content [class*="grid"] {
        display: block;

        overflow: hidden;
    }

    .hvac-content [class*="grid"] > * {
        float: left;
        width: 50%;
    }
}