/**
 * APIVerve FAQ Component Styles - Self-contained and reusable
 * 
 * Features:
 * - Completely scoped styles with .faq-container prefix
 * - No global style pollution
 * - CSS custom properties for easy theming
 * - Dark mode support
 * - Responsive design
 * - Smooth animations
 * 
 * Usage:
 * 1. Include this CSS file in your HTML
 * 2. Add HTML structure with .faq-container class
 * 3. Optionally customize CSS variables for theming
 */

/* FAQ Component Root - All styles scoped to this container */
.faq-container {
    /* CSS Custom Properties for theming */
    --faq-max-width: 800px;
    --faq-padding: 2rem 0;
    --faq-gap: 1rem;
    
    /* Colors - can be overridden */
    --faq-bg: var(--color-surface, #ffffff);
    --faq-border: var(--color-border, #e5e7eb);
    --faq-text-primary: var(--color-text-primary, #1f2937);
    --faq-text-secondary: var(--color-text-secondary, #6b7280);
    --faq-primary: var(--color-primary, #3b82f6);
    --faq-primary-dark: var(--color-primary-dark, #2563eb);
    --faq-hover-bg: var(--color-hover-bg, #f9fafb);
    
    /* Animation properties */
    --faq-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --faq-expand-transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    max-width: var(--faq-max-width);
    margin: 0 auto;
    padding: var(--faq-padding);
}

/* FAQ Item - Individual question/answer pair */
.faq-container .faq-item {
    background: var(--faq-bg);
    border: 1px solid var(--faq-border);
    border-radius: 12px;
    margin-bottom: var(--faq-gap);
    overflow: hidden;
    transition: var(--faq-transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.faq-container .faq-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.faq-container .faq-item.active {
    border-color: var(--faq-primary);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

/* FAQ Question - Clickable header */
.faq-container .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--faq-transition);
    user-select: none;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
}

.faq-container .faq-question:hover {
    background-color: var(--faq-hover-bg);
}

.faq-container .faq-question:focus {
    outline: 2px solid var(--faq-primary);
    outline-offset: -2px;
}

.faq-container .faq-question:focus:not(:focus-visible) {
    outline: none;
}

.faq-container .faq-question[role="button"]:focus-visible {
    outline: 2px solid var(--faq-primary);
    outline-offset: -2px;
}

/* FAQ Question Title */
.faq-container .faq-question h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--faq-text-primary);
    line-height: 1.4;
    flex: 1;
    padding-right: 1rem;
}

/* FAQ Icon - Plus/Minus indicator */
.faq-container .faq-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--faq-primary);
    color: white;
    transition: var(--faq-transition);
    flex-shrink: 0;
}

.faq-container .faq-icon i {
    font-size: 0.875rem;
    transition: transform 0.3s ease;
}

.faq-container .faq-item.active .faq-icon {
    background-color: var(--faq-primary-dark);
}

.faq-container .faq-item.active .faq-icon i.fa-plus {
    transform: rotate(45deg);
}

/* FAQ Answer - Collapsible content */
.faq-container .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: var(--faq-expand-transition);
}

.faq-container .faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-container .faq-content {
    padding: 0 1.5rem 1.5rem;
    color: var(--faq-text-secondary);
    line-height: 1.6;
}

.faq-container .faq-content p {
    margin: 0 0 1rem;
}

.faq-container .faq-content p:last-child {
    margin-bottom: 0;
}

/* Dark mode support - scoped to FAQ container */
[data-theme="dark"] .faq-container {
    --faq-bg: var(--dark-card-bg, #1f2937);
    --faq-border: var(--dark-border-color, #374151);
    --faq-text-primary: var(--dark-text-primary, #f9fafb);
    --faq-text-secondary: var(--dark-text-secondary, #d1d5db);
    --faq-hover-bg: var(--dark-hover-bg, #374151);
}

/* Responsive design - scoped to FAQ container */
@media (max-width: 768px) {
    .faq-container {
        --faq-padding: 1rem;
        --faq-max-width: 100%;
    }
    
    .faq-container .faq-question {
        padding: 1.25rem;
    }
    
    .faq-container .faq-question h3 {
        font-size: 1rem;
        padding-right: 0.75rem;
    }
    
    .faq-container .faq-content {
        padding: 0 1.25rem 1.25rem;
    }
}

@media (max-width: 480px) {
    .faq-container {
        --faq-padding: 0.5rem;
    }
    
    .faq-container .faq-question {
        padding: 1rem;
    }
    
    .faq-container .faq-question h3 {
        font-size: 0.9375rem;
        line-height: 1.3;
    }
    
    .faq-container .faq-content {
        padding: 0 1rem 1rem;
        font-size: 0.9375rem;
    }
    
    .faq-container .faq-icon {
        width: 20px;
        height: 20px;
    }
    
    .faq-container .faq-icon i {
        font-size: 0.75rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .faq-container .faq-item {
        border-width: 2px;
    }
    
    .faq-container .faq-question:focus {
        outline-width: 3px;
    }
    
    .faq-container .faq-icon {
        border: 2px solid currentColor;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .faq-container .faq-item,
    .faq-container .faq-question,
    .faq-container .faq-icon,
    .faq-container .faq-icon i,
    .faq-container .faq-answer {
        transition: none;
    }
    
    .faq-container .faq-answer {
        transition: max-height 0.2s linear;
    }
}

/* Print styles */
@media print {
    .faq-container .faq-item {
        box-shadow: none;
        border: 1px solid #000;
        break-inside: avoid;
        margin-bottom: 0.5rem;
    }
    
    .faq-container .faq-answer {
        max-height: none !important;
        overflow: visible !important;
    }
    
    .faq-container .faq-icon {
        display: none;
    }
    
    .faq-container .faq-question h3::after {
        content: "";
    }
}

/* Custom scrollbar for FAQ content if needed */
.faq-container .faq-content::-webkit-scrollbar {
    width: 6px;
}

.faq-container .faq-content::-webkit-scrollbar-track {
    background: var(--scrollbar-track, #f1f5f9);
    border-radius: 3px;
}

.faq-container .faq-content::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb, #cbd5e1);
    border-radius: 3px;
}

.faq-container .faq-content::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover, #94a3b8);
}

/* Loading state - for when FAQ content is loaded dynamically */
.faq-container[data-loading="true"] .faq-item {
    opacity: 0.6;
    pointer-events: none;
}

.faq-container[data-loading="true"]::after {
    content: "Loading FAQs...";
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    color: var(--faq-text-secondary);
    font-style: italic;
}

/* Empty state */
.faq-container:empty::after {
    content: "No FAQs available";
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
    color: var(--faq-text-secondary);
    font-style: italic;
}