/**
 * HVAC Help System Styles
 * Styles for welcome guide, tooltips, and documentation
 */

/* Welcome Modal Styles */
.hvac-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    animation: hvacFadeIn 0.3s ease-out forwards;
}

.hvac-modal-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    transform: scale(0.9);
    animation: hvacSlideUp 0.3s ease-out forwards;
}

.hvac-modal-header {
    background: linear-gradient(135deg, #2c5aa0 0%, #1e4080 100%);
    color: white;
    padding: 24px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hvac-modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.hvac-modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.hvac-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Welcome Cards */
.hvac-welcome-cards {
    position: relative;
    height: 320px;
    overflow: hidden;
}

.hvac-welcome-card {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.4s ease-in-out, opacity 0.4s ease-in-out;
    transform: translateX(100%);
    opacity: 0;
}

.hvac-welcome-card.active {
    transform: translateX(0);
    opacity: 1;
}

.hvac-welcome-card.hidden {
    transform: translateX(-100%);
    opacity: 0;
}

.hvac-card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    box-shadow: 0 8px 16px rgba(76, 175, 80, 0.3);
}

.hvac-card-icon i {
    font-size: 32px;
    color: white;
}

.hvac-card-content h3 {
    color: #2c5aa0;
    font-size: 1.4rem;
    font-weight: 600;
    margin: 0 0 16px 0;
}

.hvac-card-content p {
    color: #555;
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
    max-width: 400px;
}

/* Modal Navigation */
.hvac-modal-navigation {
    padding: 24px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #eee;
}

.hvac-nav-btn {
    background: #2c5aa0;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
}

.hvac-nav-btn:hover:not(:disabled) {
    background: #1e4080;
}

.hvac-nav-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.hvac-card-indicators {
    display: flex;
    gap: 8px;
}

.hvac-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
    transition: background-color 0.2s;
}

.hvac-indicator.active {
    background: #2c5aa0;
}

.hvac-indicator:hover {
    background: #4CAF50;
}

/* Modal Footer */
.hvac-modal-footer {
    padding: 24px 32px;
    background: #f9f9f9;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hvac-dismiss-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: #666;
    cursor: pointer;
}

.hvac-primary-btn {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.hvac-primary-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

/* Tooltip Styles */
.hvac-tooltip-wrapper {
    position: relative;
    display: inline-block;
}

.hvac-tooltip-wrapper:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    background: #333;
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    white-space: nowrap;
    z-index: 1000;
    opacity: 0;
    animation: hvacTooltipShow 0.2s ease-out 0.3s forwards;
}

.hvac-tooltip-wrapper:hover::before {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border: 5px solid transparent;
    z-index: 1001;
    opacity: 0;
    animation: hvacTooltipShow 0.2s ease-out 0.3s forwards;
}

/* Tooltip positions */
.hvac-tooltip-wrapper[data-position="top"]:hover::after {
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 8px;
}

.hvac-tooltip-wrapper[data-position="top"]:hover::before {
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 3px;
    border-top-color: #333;
}

.hvac-tooltip-wrapper[data-position="bottom"]:hover::after {
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 8px;
}

.hvac-tooltip-wrapper[data-position="bottom"]:hover::before {
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 3px;
    border-bottom-color: #333;
}

.hvac-tooltip-wrapper[data-position="left"]:hover::after {
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-right: 8px;
}

.hvac-tooltip-wrapper[data-position="left"]:hover::before {
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-right: 3px;
    border-left-color: #333;
}

.hvac-tooltip-wrapper[data-position="right"]:hover::after {
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: 8px;
}

.hvac-tooltip-wrapper[data-position="right"]:hover::before {
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: 3px;
    border-right-color: #333;
}

/* Documentation Page Styles */
.hvac-documentation {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 16px;
}

.hvac-doc-header {
    text-align: center;
    margin-bottom: 48px;
}

.hvac-doc-header h1 {
    color: #2c5aa0;
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 12px 0;
}

.hvac-doc-subtitle {
    color: #666;
    font-size: 1.2rem;
    margin: 0;
}

.hvac-doc-navigation {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 32px;
    text-align: center;
}

.hvac-doc-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
}

.hvac-doc-link {
    color: #2c5aa0;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.hvac-doc-link:hover {
    background: white;
    text-decoration: none;
}

.hvac-doc-section {
    margin-bottom: 48px;
    padding: 32px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.hvac-doc-section h2 {
    color: #2c5aa0;
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0 0 24px 0;
    padding-bottom: 12px;
    border-bottom: 3px solid #4CAF50;
    display: flex;
    align-items: center;
    gap: 12px;
}

.hvac-doc-section h2 i {
    color: #4CAF50;
}

.hvac-doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.hvac-doc-card {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 8px;
    border-left: 4px solid #4CAF50;
}

.hvac-doc-card h3 {
    color: #2c5aa0;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 0 12px 0;
}

.hvac-doc-card p {
    color: #555;
    line-height: 1.6;
    margin: 0 0 16px 0;
}

.hvac-doc-btn {
    background: #4CAF50;
    color: white;
    padding: 10px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    transition: background-color 0.2s;
}

.hvac-doc-btn:hover {
    background: #45a049;
    text-decoration: none;
}

.hvac-feature-list {
    display: grid;
    gap: 24px;
    margin-top: 24px;
}

.hvac-feature {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 8px;
    border-left: 4px solid #2c5aa0;
}

.hvac-feature h3 {
    color: #2c5aa0;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 0 16px 0;
}

.hvac-feature p, .hvac-feature ul, .hvac-feature ol {
    color: #555;
    line-height: 1.6;
    margin: 0;
}

.hvac-feature ul li, .hvac-feature ol li {
    margin-bottom: 8px;
}

.hvac-faq-list {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

.hvac-faq-item {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 8px;
    border-left: 4px solid #4CAF50;
}

.hvac-faq-item h3 {
    color: #2c5aa0;
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 12px 0;
}

.hvac-faq-item p {
    color: #555;
    line-height: 1.6;
    margin: 0;
}

/* Animations */
@keyframes hvacFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes hvacSlideUp {
    from { 
        transform: scale(0.9) translateY(20px);
        opacity: 0;
    }
    to { 
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

@keyframes hvacTooltipShow {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hvac-modal-content {
        width: 95%;
        margin: 16px;
    }
    
    .hvac-modal-header,
    .hvac-modal-navigation,
    .hvac-modal-footer {
        padding: 16px 20px;
    }
    
    .hvac-welcome-card {
        padding: 32px 20px;
    }
    
    .hvac-modal-header h2 {
        font-size: 1.3rem;
    }
    
    .hvac-card-content h3 {
        font-size: 1.2rem;
    }
    
    .hvac-card-content p {
        font-size: 0.95rem;
    }
    
    .hvac-modal-footer {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .hvac-primary-btn {
        width: 100%;
        text-align: center;
    }
    
    .hvac-doc-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .hvac-doc-grid {
        grid-template-columns: 1fr;
    }
    
    .hvac-documentation {
        padding: 16px 8px;
    }
    
    .hvac-doc-section {
        padding: 20px;
    }
    
    .hvac-doc-header h1 {
        font-size: 2rem;
    }
}

/* 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;
    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);
    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;
    box-shadow: none;
}

/* Ensure focus is visible for keyboard users */
.js-focus-visible .focus-visible {
    outline: 2px solid #005fcc;
    outline-offset: 2px;
}
