/* ==========================================================================
   Alertes Sociales — Data
   Style data-driven, complémentaire au site principal
   ========================================================================== */

:root {
    /* Colors */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-primary: #58a6ff;
    --accent-secondary: #3fb950;
    --accent-warning: #d29922;
    --accent-danger: #f85149;
    --border-color: #30363d;
    --border-muted: #21262d;
    
    /* Typography */
    --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'IBM Plex Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Layout */
    --container-max: 1200px;
    --border-radius: 6px;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100px;
    left: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-radius: var(--border-radius);
    z-index: 1000;
}

.skip-link:focus {
    top: var(--space-md);
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-decoration: none;
    color: var(--text-primary);
}

.brand-icon {
    font-size: 1.75rem;
}

.brand-title {
    font-weight: 600;
    font-size: 1.125rem;
    display: block;
}

.brand-subtitle {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    display: block;
}

.header-nav {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.header-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s;
}

.header-nav a:hover {
    color: var(--text-primary);
}

.header-nav .nav-external {
    color: var(--accent-primary);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    padding: var(--space-3xl) 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
}

.hero .highlight {
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-lead {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin-bottom: var(--space-2xl);
}

/* Key Stats Grid */
.key-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.stat-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* Hero CTA */
.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: #79b8ff;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-small {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.8125rem;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.btn-large {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section {
    padding: var(--space-3xl) 0;
}

.section-alt {
    background: var(--bg-secondary);
}

.section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.section-intro {
    color: var(--text-secondary);
    max-width: 700px;
    margin-bottom: var(--space-2xl);
}

.section-intro a {
    color: var(--accent-primary);
}

/* ==========================================================================
   Dataset Cards
   ========================================================================== */

.dataset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.dataset-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    transition: border-color 0.2s;
}

.dataset-card:hover {
    border-color: var(--accent-primary);
}

.dataset-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.dataset-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.dataset-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

.dataset-meta {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
}

.dataset-actions {
    display: flex;
    gap: var(--space-sm);
}

/* ==========================================================================
   Timeline
   ========================================================================== */

.timeline {
    position: relative;
    padding-left: var(--space-2xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--space-2xl) + 4px);
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent-primary);
    border: 2px solid var(--bg-primary);
}

.timeline-item[data-type="mobilisation"]::before {
    background: var(--accent-danger);
}

.timeline-item[data-type="juridique"]::before {
    background: var(--accent-warning);
}

.timeline-item[data-type="legislation"]::before {
    background: var(--accent-secondary);
}

.timeline-item[data-type="application"]::before {
    background: var(--accent-danger);
}

.timeline-item[data-status="planned"]::before {
    background: transparent;
    border: 2px solid var(--text-muted);
}

.timeline-item time {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: var(--space-xs);
}

.timeline-content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==========================================================================
   Glossary
   ========================================================================== */

.glossary {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.glossary-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.glossary-item summary {
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.glossary-item summary::before {
    content: '▶';
    font-size: 0.625rem;
    color: var(--text-muted);
    transition: transform 0.2s;
}

.glossary-item[open] summary::before {
    transform: rotate(90deg);
}

.glossary-item summary::-webkit-details-marker {
    display: none;
}

.glossary-content {
    padding: 0 var(--space-lg) var(--space-lg);
    border-top: 1px solid var(--border-color);
    margin-top: 0;
}

.glossary-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: var(--space-md);
}

.glossary-content ol {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: var(--space-sm);
    padding-left: var(--space-lg);
}

.glossary-more {
    margin-top: var(--space-xl);
}

.glossary-more a {
    color: var(--accent-primary);
}

/* ==========================================================================
   CTA Section
   ========================================================================== */

.section-cta {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    text-align: center;
    padding: var(--space-3xl) 0;
}

.section-cta h2 {
    margin-bottom: var(--space-md);
}

.section-cta > .container > p {
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
}

.article-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    text-align: left;
}

.article-link {
    display: block;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    text-decoration: none;
    transition: all 0.2s;
}

.article-link:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.article-category {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: var(--space-xs);
}

.article-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    margin-bottom: var(--space-xs);
}

.article-desc {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    display: block;
}

.cta-main {
    margin-top: var(--space-xl);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-section h3 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.footer-section p,
.footer-section li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.footer-section a {
    color: var(--accent-primary);
    text-decoration: none;
}

.footer-section a:hover {
    text-decoration: underline;
}

.footer-section ul {
    list-style: none;
}

.footer-section code {
    font-family: var(--font-mono);
    background: var(--bg-tertiary);
    padding: 0.1em 0.3em;
    border-radius: 3px;
    font-size: 0.8125rem;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

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

@media (max-width: 768px) {
    .site-header .container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-nav {
        width: 100%;
        justify-content: flex-start;
    }
    
    .hero {
        padding: var(--space-2xl) 0;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    .timeline {
        padding-left: var(--space-lg);
    }
    
    .timeline::before {
        left: 4px;
    }
    
    .timeline-item::before {
        left: calc(-1 * var(--space-lg));
    }
}

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

@media print {
    .site-header,
    .hero-cta,
    .dataset-actions,
    .section-cta,
    .site-footer {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .section {
        padding: 1rem 0;
    }
}