/* ============================================
   VARIABLES & RESET
============================================ */
:root {
    /* Couleurs - Thème clair */
    --color-primary: #1a365d;
    --color-primary-light: #2d4f8b;
    --color-secondary: #4a5568;
    --color-accent: #3182ce;
    --color-accent-light: #4299e1;
    
    --color-text: #2d3748;
    --color-text-light: #4a5568;
    --color-text-lighter: #718096;
    
    --color-bg: #ffffff;
    --color-bg-alt: #f7fafc;
    --color-bg-card: #ffffff;
    
    --color-border: #e2e8f0;
    --color-shadow: rgba(0, 0, 0, 0.05);
    
    --color-success: #38a169;
    --color-warning: #d69e2e;
    --color-error: #e53e3e;
    --color-info: #3182ce;
    
    /* Typographie */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Espacements */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-xxl: 4rem;
    
    /* Bordures */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Thème sombre */
[data-theme="dark"] {
    --color-primary: #90cdf4;
    --color-primary-light: #63b3ed;
    --color-secondary: #a0aec0;
    --color-accent: #63b3ed;
    --color-accent-light: #90cdf4;
    
    --color-text: #e2e8f0;
    --color-text-light: #cbd5e0;
    --color-text-lighter: #a0aec0;
    
    --color-bg: #1a202c;
    --color-bg-alt: #2d3748;
    --color-bg-card: #2d3748;
    
    --color-border: #4a5568;
    --color-shadow: rgba(0, 0, 0, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ============================================
   TYPOGRAPHIE
============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
}

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
    color: var(--color-primary-light);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

p {
    margin-bottom: var(--space-sm);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

code, pre {
    font-family: var(--font-mono);
    font-size: 0.9em;
}

/* ============================================
   COMPOSANTS PRINCIPAUX
============================================ */

/* Header */
.main-header {
    background-color: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px var(--color-shadow);
    padding: var(--space-sm) 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    flex: 1;
}

.site-title {
    font-size: 1.5rem;
    margin-bottom: 0;
}

.site-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-lighter);
    margin-bottom: 0;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--space-md);
}

.nav-link {
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.nav-link:hover {
    background-color: var(--color-bg-alt);
    text-decoration: none;
}

.theme-btn {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.theme-btn:hover {
    background-color: var(--color-bg-alt);
    transform: rotate(15deg);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: var(--space-xxl) 0;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.hero-title {
    font-size: 2.75rem;
    margin-bottom: var(--space-md);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--color-text-lighter);
}

.time-display, .last-updated {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.hero-visual {
    display: flex;
    justify-content: center;
}

.code-snippet {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 25px var(--color-shadow);
    overflow-x: auto;
}

.code-snippet pre {
    margin: 0;
}

.code-snippet code {
    color: var(--color-text);
}

/* Sections */
.content-section {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
}

.section-header {
    margin-bottom: var(--space-xl);
    text-align: center;
}

.section-icon {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section-title {
    margin-bottom: var(--space-xs);
}

.section-subtitle {
    color: var(--color-text-light);
    font-size: 1.1rem;
}

/* Cartes d'expertise */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.expertise-card {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--space-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.expertise-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px var(--color-shadow);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.card-icon {
    font-size: 1.5rem;
    color: var(--color-accent);
}

.card-title {
    margin-bottom: 0;
}

.card-body {
    margin-bottom: var(--space-md);
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-top: var(--space-sm);
}

.tag {
    background-color: var(--color-bg-alt);
    color: var(--color-text-light);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.85rem;
}

.card-footer {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-md);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 500;
}

/* Documents */
.documents-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.document-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--space-md);
    align-items: center;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    transition: border-color var(--transition-fast);
}

.document-item:hover {
    border-color: var(--color-accent);
}

.document-icon {
    font-size: 1.75rem;
    color: var(--color-accent);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-alt);
    border-radius: 50%;
}

.document-content {
    flex: 1;
}

.document-title {
    margin-bottom: var(--space-xs);
}

.document-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-xs);
}

.document-meta {
    display: flex;
    gap: var(--space-sm);
}

.meta-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.85rem;
    color: var(--color-text-lighter);
}

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

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

.resource-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: border-color var(--transition-fast);
}

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

.resource-title {
    margin-bottom: var(--space-sm);
}

.resource-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
    flex: 1;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 500;
    margin-top: auto;
}

.access-notice {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    background-color: var(--color-bg-alt);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
    color: var(--color-warning);
}

.access-notice i {
    font-size: 1rem;
}

/* Contact */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

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

.contact-icon {
    font-size: 2rem;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.contact-title {
    margin-bottom: var(--space-xs);
}

.contact-details {
    color: var(--color-text-light);
}

.access-request {
    text-align: center;
    padding: var(--space-xl);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--color-border);
}

.access-request h3 {
    margin-bottom: var(--space-sm);
}

.access-request p {
    margin-bottom: var(--space-lg);
    color: var(--color-text-light);
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-light);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--color-bg-alt);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-border);
    text-decoration: none;
}

/* Footer */
.main-footer {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--space-xl) 0 var(--space-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-section h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.footer-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.footer-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.footer-meta i {
    margin-right: var(--space-xs);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-links a {
    color: var(--color-text-light);
}

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

.system-status {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-success);
}

.status-dot.online {
    background-color: var(--color-success);
}

.status-dot.offline {
    background-color: var(--color-error);
}

.status-time {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.footer-note {
    margin-top: var(--space-xs);
    font-style: italic;
}

/* ============================================
   RESPONSIVE
============================================ */
/* Remplacer les styles du menu mobile par : */

@media (max-width: 768px) {
    .main-nav .nav-list {
        display: none; /* Caché par défaut sur mobile */
        flex-direction: column;
        position: absolute;
        top: 100%;
        right: 0;
        background-color: var(--color-bg-card);
        padding: var(--space-md);
        border-radius: var(--radius-md);
        box-shadow: 0 10px 25px var(--color-shadow);
        border: 1px solid var(--color-border);
        min-width: 200px;
        z-index: 1000;
    }
    
    .main-nav .nav-list.active {
        display: flex; /* Affiché seulement quand la classe active est présente */
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    /* Supprimer ou commenter ces anciennes règles si elles existent :
    .nav-list {
        display: none !important;
    }
    */
}

@media (min-width: 769px) {
    .main-nav .nav-list {
        display: flex !important; /* Toujours visible sur desktop */
        flex-direction: row !important;
        position: static !important;
        background-color: transparent !important;
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        min-width: auto !important;
    }
    
    .mobile-menu-btn {
        display: none !important;
    }
}
/* ============================================
   ANIMATIONS & ÉTATS
============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-section {
    animation: fadeIn 0.6s ease-out;
}

/* Loading state */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* Print styles */
@media print {
    .main-header,
    .theme-btn,
    .mobile-menu-btn,
    .main-footer,
    .btn {
        display: none !important;
    }
    
    body {
        background-color: white !important;
        color: black !important;
    }
    
    a {
        color: black !important;
        text-decoration: underline !important;
    }
    
    .container {
        max-width: 100% !important;
        padding: 0 !important;
    }
    
    .hero,
    .content-section {
        padding: 1rem 0 !important;
        border: none !important;
    }
}

/* ============================================
   SECTION OUTILS & TECHNOLOGIES
============================================ */
.tools-section {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.tools-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    font-size: 1.5rem;
    color: var(--color-primary);
}

.tools-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    max-width: 800px;
    margin: 0 auto;
}

.tool-tag {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.tool-tag:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Responsive pour les outils */
@media (max-width: 768px) {
    .tools-grid {
        gap: 0.5rem;
    }
    
    .tool-tag {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
}

/* ============================================
   FILTRES D'EXPERTISES - STYLES COMPLETS
============================================ */

.expertise-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    padding: var(--space-md);
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    background-color: var(--color-bg-alt);
    border: 2px solid transparent;
    border-radius: 2rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.filter-btn:hover {
    background-color: var(--color-border);
    color: var(--color-text);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--color-shadow);
}

.filter-btn.active {
    background-color: var(--color-accent);
    color: white;
    border-color: var(--color-accent-light);
    box-shadow: 0 4px 12px rgba(66, 153, 225, 0.3);
}

.filter-btn.active:hover {
    background-color: var(--color-accent-light);
    transform: translateY(-2px);
}

/* Indicateur de résultats */
.filter-results {
    text-align: center;
    margin-top: var(--space-lg);
    padding: var(--space-sm);
    color: var(--color-text-light);
    font-size: 0.9rem;
    font-style: italic;
}

/* Animation pour le filtrage */
.expertise-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1;
    transform: translateY(0);
    animation: cardAppear 0.5s ease-out;
}

.expertise-card.hidden {
    opacity: 0;
    transform: translateY(20px);
    height: 0;
    margin: 0;
    padding: 0;
    border: 0;
    overflow: hidden;
    pointer-events: none;
}

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

/* États pour les cartes filtrées */
.expertise-grid.filtering .expertise-card:not(.hidden) {
    animation: cardHighlight 0.6s ease-out;
}

@keyframes cardHighlight {
    0% {
        transform: scale(0.95);
    }
    50% {
        transform: scale(1.02);
    }
    100% {
        transform: scale(1);
    }
}

/* Responsive pour les filtres */
@media (max-width: 768px) {
    .expertise-filters {
        padding: var(--space-sm);
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
        flex: 1;
        min-width: 120px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .expertise-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-btn {
        min-width: auto;
    }
}

/* ============================================
   SECTION OUTILS
============================================ */
.tools-section {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.tools-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    font-size: 1.5rem;
    color: var(--color-primary);
}

.tools-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    max-width: 800px;
    margin: 0 auto;
}

.tool-tag {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

.tool-tag:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Animation des cartes */
.expertise-card:nth-child(1) { animation-delay: 0.1s; }
.expertise-card:nth-child(2) { animation-delay: 0.2s; }
.expertise-card:nth-child(3) { animation-delay: 0.3s; }
.expertise-card:nth-child(4) { animation-delay: 0.4s; }
.expertise-card:nth-child(5) { animation-delay: 0.5s; }
.expertise-card:nth-child(6) { animation-delay: 0.6s; }