/* ============================================
   Historical Genocide Archive - Stylesheet
   ============================================ */

/* ============================================
   CSS Reset & Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight-color: #533483;
    --text-primary: #e4e4e4;
    --text-secondary: #b8b8b8;
    --text-muted: #888888;
    --border-color: #2d2d44;
    --card-bg: #1e1e30;
    --danger-color: #c94c4c;
    --warning-color: #d4a574;
    --info-color: #4a90e2;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Borders & Shadows */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --box-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

a {
    color: var(--info-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--highlight-color);
    text-decoration: underline;
}

strong {
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   Layout
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   Header
   ============================================ */
header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
    box-shadow: var(--box-shadow-lg);
    margin-bottom: var(--spacing-xl);
    border-bottom: 3px solid var(--highlight-color);
}

header h1 {
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* ============================================
   Introduction Section
   ============================================ */
.introduction {
    margin-bottom: var(--spacing-xl);
}

.intro-content {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    border-left: 4px solid var(--highlight-color);
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.disclaimer {
    background: rgba(212, 165, 116, 0.1);
    border: 1px solid var(--warning-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    font-size: 0.95rem;
    line-height: 1.6;
}

.disclaimer strong {
    color: var(--warning-color);
    display: block;
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   Filter Section
   ============================================ */
.filter-section {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-xl);
}

.filter-section h2 {
    color: var(--info-color);
    margin-bottom: var(--spacing-md);
}

.filter-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.filter-group label {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.filter-group input,
.filter-group select {
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: var(--info-color);
}

.reset-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--warning-color);
    color: var(--text-primary);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s ease;
    align-self: flex-end;
}

.reset-btn:hover {
    background: var(--danger-color);
}

.filter-results {
    display: none;
    padding: var(--spacing-sm);
    background: rgba(74, 144, 226, 0.2);
    border-radius: var(--border-radius);
    color: var(--info-color);
    font-weight: 500;
    text-align: center;
}

@media (max-width: 768px) {
    .filter-controls {
        grid-template-columns: 1fr;
    }
    
    .reset-btn {
        align-self: stretch;
    }
}

/* ============================================
   Statistics Section
   ============================================ */
.statistics {
    margin-bottom: var(--spacing-xl);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--box-shadow);
    border-top: 3px solid var(--highlight-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--highlight-color);
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* ============================================
   Genocide Cards
   ============================================ */
.genocide-list {
    margin-bottom: var(--spacing-xl);
}

.genocide-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--box-shadow);
    border-left: 5px solid var(--danger-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
}

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

.genocide-card.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.genocide-card:hover {
    transform: translateX(5px);
    box-shadow: var(--box-shadow-lg);
}

.genocide-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.genocide-header h2 {
    color: var(--text-primary);
    margin-bottom: 0;
    flex: 1;
    min-width: 200px;
}

.date-badge {
    background: var(--accent-color);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
}

/* ============================================
   Genocide Details
   ============================================ */
.genocide-details {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--border-radius);
}

.detail-row {
    display: flex;
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.detail-row:last-child {
    margin-bottom: 0;
}

.detail-label {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 120px;
    flex-shrink: 0;
}

.detail-value {
    color: var(--text-secondary);
    flex: 1;
}

.death-toll {
    color: var(--danger-color);
    font-weight: 500;
}

/* ============================================
   Context Section
   ============================================ */
.context-section {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--info-color);
}

.context-section h3 {
    color: var(--info-color);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

.context-section p {
    line-height: 1.8;
    color: var(--text-secondary);
}

/* ============================================
   Enablers Section
   ============================================ */
.enablers-section {
    padding: var(--spacing-md);
    background: rgba(201, 76, 76, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid rgba(201, 76, 76, 0.2);
}

.enablers-section h3 {
    color: var(--danger-color);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

.enablers-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.enabler-item {
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--danger-color);
    line-height: 1.6;
}

.enabler-name {
    color: var(--text-primary);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.enabler-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   Methodology Section
   ============================================ */
.methodology {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-xl);
    border-top: 3px solid var(--info-color);
}

.methodology h2 {
    color: var(--info-color);
}

.methodology-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.methodology-content ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: var(--spacing-md);
}

.methodology-content li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    line-height: 1.6;
}

.definition-box {
    background: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--highlight-color);
}

.definition-box h4 {
    color: var(--highlight-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.definition-box p {
    margin-bottom: var(--spacing-sm);
}

.definition-box ul {
    margin-left: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.methodology-note {
    font-style: italic;
    color: var(--text-muted);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.02);
    border-left: 3px solid var(--warning-color);
    border-radius: var(--border-radius);
}

/* ============================================
   Resources Section
   ============================================ */
.resources {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-xl);
    border-top: 3px solid var(--highlight-color);
}

.resources h2 {
    color: var(--highlight-color);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.resource-card {
    background: rgba(255, 255, 255, 0.02);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--highlight-color);
}

.resource-card h3 {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

.resource-card ul {
    list-style: none;
    padding-left: 0;
}

.resource-card li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    line-height: 1.6;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.resource-card li:last-child {
    border-bottom: none;
}

.resource-card li:before {
    content: "→ ";
    color: var(--highlight-color);
    font-weight: bold;
    margin-right: var(--spacing-xs);
}

/* ============================================
   Footer
   ============================================ */
footer {
    background: var(--secondary-color);
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 3px solid var(--highlight-color);
    margin-top: var(--spacing-xl);
}

footer p {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.footer-note {
    font-style: italic;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.refresh-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

/* ============================================
   PDF Library Section
   ============================================ */
.pdf-library-section {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-xl);
    border-left: 4px solid #4caf50;
}

.pdf-library-section h2 {
    color: #4caf50;
    margin-bottom: var(--spacing-md);
}

.pdf-list-container {
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.02);
}

.pdf-list-container::-webkit-scrollbar {
    width: 10px;
}

.pdf-list-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
}

.pdf-list-container::-webkit-scrollbar-thumb {
    background: var(--info-color);
    border-radius: var(--border-radius);
}

.pdf-list-container::-webkit-scrollbar-thumb:hover {
    background: var(--highlight-color);
}

.pdf-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s ease;
}

.pdf-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.pdf-item:last-child {
    border-bottom: none;
}

.pdf-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.pdf-details {
    flex: 1;
}

.pdf-title {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: 1.1rem;
}

.pdf-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.pdf-title a:hover {
    color: #4caf50;
}

.pdf-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.pdf-size,
.pdf-date {
    display: inline-flex;
    align-items: center;
}

.pdf-summary {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(74, 144, 226, 0.1);
    border-left: 3px solid var(--info-color);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.pdf-summary strong {
    color: var(--info-color);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.pdf-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.pdf-download-btn,
.pdf-view-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.pdf-download-btn {
    background: #4caf50;
    color: white;
}

.video-view-btn {
    background: var(--danger-color);
    color: white;
    border: none;
    cursor: pointer;
}

.video-view-btn:hover {
    background: #ff4444;
}

.video-download-btn {
    background: var(--success-color);
    color: white;
}

.video-fullscreen-btn {
    background: var(--info-color);
    color: white;
}

.video-download-btn:hover,
.video-fullscreen-btn:hover,
.video-view-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.empty-video-library {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-video-library p:first-child {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

/* Video Player Controls Styling */
video::-webkit-media-controls-panel {
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
}

video::-webkit-media-controls-play-button,
video::-webkit-media-controls-volume-slider {
    filter: brightness(1.2);
}

/* Mobile Responsive for Videos */
@media (max-width: 768px) {
    .video-player {
        max-height: 300px;
        align-items: flex-start;
    }
    
    .pdf-actions {
        width: 100%;
        justify-content: stretch;
    }
    
    .pdf-download-btn,
    .pdf-view-btn {
        flex: 1;
        justify-content: center;
    }
    
    .pdf-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet and below (768px) */
@media (max-width: 768px) {
    :root {
        --font-size-base: 14px;
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .stat-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    .enablers-grid {
        grid-template-columns: 1fr;
    }
    
    .genocide-card {
        padding: var(--spacing-md);
    }
    
    header h1 {
        font-size: 1.75rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    /* Gallery specific */
    .gallery-grid {
        grid-template-columns: 1fr !important;
    }
    
    .gallery-nav {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .gallery-nav a {
        text-align: center;
        width: 100%;
    }
    
    /* Form improvements for mobile */
    .form-row {
        grid-template-columns: 1fr !important;
    }
    
    input[type="text"],
    input[type="password"],
    input[type="email"],
    input[type="date"],
    textarea,
    select {
        font-size: 16px !important; /* Prevents zoom on iOS */
    }
    
    /* Evidence page */
    .source-card {
        padding: var(--spacing-sm);
    }
    
    .source-link {
        display: block;
        text-align: center;
        margin-top: var(--spacing-sm);
    }
}

/* Mobile (480px and below) */
@media (max-width: 480px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-lg: 1rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .genocide-card {
        padding: var(--spacing-md);
    }
    
    .intro-content,
    .methodology,
    .resources {
        padding: var(--spacing-md);
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    body {
        background: white;
        color: black;
    }
    
    header,
    footer,
    .statistics {
        page-break-after: avoid;
    }
    
    .genocide-card {
        page-break-inside: avoid;
        border: 1px solid #ccc;
        box-shadow: none;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
/* ============================================
   Accessibility
   ============================================ */
.video-player-wrapper {
    width: 100%;
    background: #000;
    position: relative;
}

.video-player {
    width: 100%;
    max-height: 500px;
    display: block;
    background: #000;
}

.video-thumbnail {
    width: 100%;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    position: relative;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-thumbnail-placeholder {
    text-align: center;
    position: relative;
}

.play-icon {
    font-size: 4rem;
    color: var(--danger-color);
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.video-thumbnail:hover .play-icon {
    transform: scale(1.2);
    color: #ff4444;
}

.video-format-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
a:focus,
button:focus {
    outline: 2px solid var(--info-color);
    outline-offset: 2px;
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #e0e0e0;
        --border-color: #ffffff;
    }
    
    .genocide-card,
    .stat-card,
    .intro-content {
        border: 2px solid var(--border-color);
    }
}