/* 
 * Resources Content Styling - Mobile First Responsive Design
 * Optimized for readability and accessibility across all devices
 */

/* ==========================================================================
   Mobile Base Styles (320px+)
   ========================================================================== */

.resource-content {
    padding: 1rem 0;
}

.resource-content .container {
    padding-left: 1rem;
    padding-right: 1rem;
}

.content-article {
    max-width: 100%;
    margin: 0 auto;
}

.content-header {
    margin-bottom: 2rem;
    text-align: center;
}

.content-header h1 {
    font-size: 1.75rem;
    line-height: 1.3;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.75rem;
}

.content-header .lead {
    font-size: 1rem;
    line-height: 1.5;
    color: #6c757d;
    font-weight: 400;
    margin-bottom: 0;
}

/* Markdown Content Styling */
.content-body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

.markdown-content h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin: 2rem 0 1rem 0;
    line-height: 1.3;
}

.markdown-content h2 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #34495e;
    margin: 1.75rem 0 0.75rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e9ecef;
}

.markdown-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #495057;
    margin: 1.5rem 0 0.5rem 0;
}

.markdown-content p {
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Lists */
.markdown-content ul,
.markdown-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.markdown-content li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    line-height: 1.5;
}

.markdown-content li strong {
    color: #2c3e50;
    font-weight: 600;
}

/* Nested lists */
.markdown-content ul ul,
.markdown-content ol ol,
.markdown-content ul ol,
.markdown-content ol ul {
    margin-top: 0.25rem;
    margin-bottom: 0.25rem;
}

/* Links */
.markdown-content a {
    color: #007bff;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.markdown-content a:hover {
    color: #0056b3;
    border-bottom-color: #0056b3;
}

/* Emphasis */
.markdown-content strong {
    font-weight: 600;
    color: #2c3e50;
}

.markdown-content em {
    font-style: italic;
    color: #6c757d;
}

/* Horizontal Rules */
.markdown-content hr {
    border: none;
    height: 2px;
    background: linear-gradient(to right, #e9ecef, #dee2e6, #e9ecef);
    margin: 2rem 0;
}

/* Quotes */
.markdown-content blockquote {
    border-left: 4px solid #007bff;
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: #6c757d;
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 0 0.25rem 0.25rem 0;
}

/* Code */
.markdown-content code {
    background: #f8f9fa;
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    color: #e83e8c;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

.markdown-content pre {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    border: 1px solid #e9ecef;
}

.markdown-content pre code {
    background: none;
    padding: 0;
    color: #495057;
}

/* Breadcrumbs Mobile */
.breadcrumb {
    background: transparent;
    padding: 0.5rem 0;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    color: #6c757d;
}

/* Breadcrumb Section for Individual Pages */
.breadcrumb-section {
    background: #fff;
    border-bottom: 1px solid #e9ecef;
    padding: 1rem 0;
    margin: 0;
}

/* Tab Navigation */
.tab-navigation {
    margin: 0;
    padding: 0;
}

.breadcrumb-section .tab-navigation {
    margin: 1rem 0 0 0;
    padding: 0;
}

.tab-nav-container {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scrollbar-width: thin;
    scrollbar-color: #dee2e6 transparent;
}

.tab-nav-container::-webkit-scrollbar {
    height: 4px;
}

.tab-nav-container::-webkit-scrollbar-track {
    background: transparent;
}

.tab-nav-container::-webkit-scrollbar-thumb {
    background: #dee2e6;
    border-radius: 2px;
}

.tab-nav-item {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background: #f8f9fa;
    color: #6c757d;
    text-decoration: none;
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    min-width: fit-content;
}

.tab-nav-item:hover {
    background: #e9ecef;
    color: #495057;
    text-decoration: none;
    transform: translateY(-1px);
}

.tab-nav-item.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.tab-nav-item.active:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* ==========================================================================
   Tablet Styles (768px+)
   ========================================================================== */

@media (min-width: 768px) {
    .resource-content {
        padding: 2rem 0;
    }
    
    .resource-content .container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
    
    .content-article {
        max-width: 750px;
    }
    
    .content-header {
        text-align: left;
        margin-bottom: 2.5rem;
    }
    
    /* Tab Navigation Tablet */
    .breadcrumb-section {
        padding: 1.25rem 0;
    }
    
    .tab-nav-container {
        gap: 0.75rem;
        justify-content: flex-start;
    }
    
    .tab-nav-item {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .content-header h1 {
        font-size: 2.25rem;
        margin-bottom: 1rem;
    }
    
    .content-header .lead {
        font-size: 1.125rem;
    }
    
    .markdown-content h1 {
        font-size: 1.875rem;
    }
    
    .markdown-content h2 {
        font-size: 1.5rem;
        margin: 2rem 0 1rem 0;
    }
    
    .markdown-content h3 {
        font-size: 1.25rem;
    }
    
    .markdown-content p,
    .markdown-content li {
        font-size: 1rem;
    }
    
    .breadcrumb {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }
}

/* ==========================================================================
   Desktop Styles (992px+)
   ========================================================================== */

@media (min-width: 992px) {
    .resource-content {
        padding: 3rem 0;
    }
    
    .content-article {
        max-width: 800px;
    }
    
    .content-header {
        margin-bottom: 3rem;
    }
    
    .content-header h1 {
        font-size: 2.5rem;
        margin-bottom: 1.25rem;
    }
    
    .content-header .lead {
        font-size: 1.25rem;
    }
    
    /* Tab Navigation Desktop */
    .breadcrumb-section {
        padding: 1.5rem 0;
    }
    
    .tab-nav-container {
        gap: 1rem;
        overflow-x: visible;
    }
    
    .tab-nav-item {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
    
    .markdown-content h1 {
        font-size: 2rem;
    }
    
    .markdown-content h2 {
        font-size: 1.625rem;
    }
    
    .markdown-content h3 {
        font-size: 1.375rem;
    }
    
    .markdown-content p,
    .markdown-content li {
        font-size: 1.0625rem;
        line-height: 1.7;
    }
    
    /* Enhanced hover effects for desktop */
    .markdown-content a:hover {
        transform: translateY(-1px);
    }
    
    .breadcrumb {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
}

/* ==========================================================================
   Large Desktop Styles (1200px+)
   ========================================================================== */

@media (min-width: 1200px) {
    .content-article {
        max-width: 860px;
    }
    
    .content-header h1 {
        font-size: 2.75rem;
    }
    
    .content-header .lead {
        font-size: 1.375rem;
    }
    
    .markdown-content h1 {
        font-size: 2.25rem;
    }
    
    .markdown-content h2 {
        font-size: 1.75rem;
    }
    
    .markdown-content h3 {
        font-size: 1.5rem;
    }
    
    .markdown-content p,
    .markdown-content li {
        font-size: 1.125rem;
        line-height: 1.8;
    }
}

/* ==========================================================================
   Dark Mode Support (Future Enhancement)
   ========================================================================== */

@media (prefers-color-scheme: dark) {
    .content-header h1,
    .markdown-content h1,
    .markdown-content h2,
    .markdown-content h3 {
        color: #f8f9fa;
    }
    
    .markdown-content {
        color: #e9ecef;
    }
    
    .markdown-content a {
        color: #66b3ff;
    }
    
    .markdown-content a:hover {
        color: #4da6ff;
    }
    
    .markdown-content blockquote {
        background: rgba(255, 255, 255, 0.05);
        color: #adb5bd;
    }
    
    .markdown-content code,
    .markdown-content pre {
        background: rgba(255, 255, 255, 0.05);
        color: #e9ecef;
    }
}

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

@media print {
    .resource-content {
        padding: 0;
    }
    
    .content-header h1 {
        font-size: 24pt;
        color: #000;
    }
    
    .markdown-content {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
    }
    
    .markdown-content a {
        color: #000;
        text-decoration: underline;
    }
    
    .breadcrumb {
        display: none;
    }
}

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

/* Focus styles for keyboard navigation */
.markdown-content a:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
    border-radius: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .markdown-content a {
        transition: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .markdown-content {
        color: #000;
    }
    
    .content-header h1,
    .markdown-content h1,
    .markdown-content h2,
    .markdown-content h3 {
        color: #000;
    }
    
    .markdown-content a {
        color: #0000ee;
        text-decoration: underline;
    }
}