/* ============================================
   SYSTÈME DE THÈME COMPLET - MODE NUIT/JOUR
   ============================================ */

/* Variables CSS pour les thèmes - Surcharge des variables de base */
:root {
    /* Mode sombre (par défaut) - déjà défini dans styles.css */
}

body.light-mode {
    /* Mode clair */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --bg-hover: #e9ecef;
    --text-primary: #000000;
    --text-secondary: #333333;
    --text-muted: #666666;
    --border-color: rgba(0, 0, 0, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(108, 99, 255, 0.2);
}

/* ============================================
   FOND ET STRUCTURE PRINCIPALE
   ============================================ */

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

body.light-mode {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* Sections */
section {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    background-color: transparent;
    transition: background-color 0.3s ease;
}

.navbar.scrolled {
    background-color: var(--bg-secondary);
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px var(--shadow-color);
}

body.light-mode .navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 5px 20px var(--shadow-color);
}

.navbar-logo {
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.navbar-links {
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.navbar-links:hover {
    color: var(--primary-color);
}

/* Menu burger (hamburger) adaptatif */
.navbar-toggle {
    transition: all 0.3s ease;
}

.navbar-toggle .bar {
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

.navbar-toggle:hover .bar {
    background-color: var(--primary-color);
    transform: scaleX(1.1);
}

.navbar-toggle.active .bar {
    background-color: var(--primary-color);
}

body.light-mode .navbar-toggle .bar {
    background-color: var(--text-primary);
}

body.light-mode .navbar-toggle:hover .bar {
    background-color: var(--primary-color);
}

body.light-mode .navbar-toggle.active .bar {
    background-color: var(--primary-color);
}

/* Menu mobile adaptatif au thème */
@media screen and (max-width: 768px) {
    .navbar-menu {
        background-color: var(--bg-secondary);
        backdrop-filter: blur(10px);
    }
    
    .navbar-menu.active {
        box-shadow: 0 5px 20px var(--shadow-color);
    }
    
    .navbar-links {
        color: var(--text-primary);
    }
    
    .navbar-links:hover {
        background-color: var(--bg-hover);
        color: var(--primary-color);
    }
    
    body.light-mode .navbar-menu {
        background-color: rgba(255, 255, 255, 0.98);
    }
    
    body.light-mode .navbar-links {
        color: var(--text-primary);
    }
    
    body.light-mode .navbar-links:hover {
        background-color: var(--bg-hover);
        color: var(--primary-color);
    }
}

/* ============================================
   CARTES ET CONTENEURS
   ============================================ */

.card,
.project-card,
.article-card,
.blog-card,
.skill-item,
.timeline-item,
.info-item {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: all 0.3s ease;
}

.card:hover,
.project-card:hover,
.article-card:hover,
.blog-card:hover {
    background-color: var(--bg-hover);
    box-shadow: 0 8px 15px var(--shadow-hover);
    transform: translateY(-5px);
}

body.light-mode .card,
body.light-mode .project-card,
body.light-mode .article-card,
body.light-mode .blog-card {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

body.light-mode .card:hover,
body.light-mode .project-card:hover,
body.light-mode .article-card:hover,
body.light-mode .blog-card:hover {
    background-color: #f8f9fa;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

/* ============================================
   TEXTES ET TYPOGRAPHIE
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    transition: color 0.3s ease;
}

p, span, li, td, th {
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.section-title {
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
}

.hero-title {
    color: var(--text-primary);
}

.hero-description {
    color: var(--text-primary);
    background: linear-gradient(135deg, 
        rgba(108, 99, 255, 0.08) 0%, 
        rgba(77, 68, 219, 0.05) 50%, 
        rgba(108, 99, 255, 0.08) 100%);
    border-color: rgba(108, 99, 255, 0.2);
}

body.light-mode .hero-description {
    color: #2c3e50;
    background: linear-gradient(135deg, 
        rgba(108, 99, 255, 0.1) 0%, 
        rgba(77, 68, 219, 0.08) 50%, 
        rgba(108, 99, 255, 0.1) 100%);
    border-color: rgba(108, 99, 255, 0.25);
    box-shadow: 
        0 8px 32px rgba(108, 99, 255, 0.15),
        0 0 0 1px rgba(108, 99, 255, 0.15) inset,
        0 0 40px rgba(108, 99, 255, 0.08);
    text-shadow: none;
}

body.light-mode .hero-description:hover {
    box-shadow: 
        0 12px 40px rgba(108, 99, 255, 0.2),
        0 0 0 1px rgba(108, 99, 255, 0.25) inset,
        0 0 60px rgba(108, 99, 255, 0.12);
}

/* ============================================
   BOUTONS
   ============================================ */

.btn,
.submit-btn,
.filter-btn,
.blog-btn,
.project-link,
.back-btn,
.similar-article-link {
    background-color: var(--primary-color);
    color: #ffffff;
    border: 2px solid var(--primary-color);
    transition: all 0.3s ease;
}

.btn:hover,
.submit-btn:hover,
.filter-btn:hover,
.blog-btn:hover,
.project-link:hover,
.back-btn:hover,
.similar-article-link:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    box-shadow: 0 5px 15px var(--shadow-hover);
    transform: translateY(-2px);
}

.filter-btn {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.filter-btn.active,
.filter-btn:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
}

body.light-mode .filter-btn {
    background-color: #ffffff;
    color: #000000;
    border: 2px solid #000000;
}

body.light-mode .filter-btn.active,
body.light-mode .filter-btn:hover {
    background-color: #000000;
    color: #ffffff;
}

/* ============================================
   FORMULAIRES
   ============================================ */

.form-group input,
.form-group textarea {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.form-group label {
    color: var(--text-secondary);
}

.form-group input:focus + label,
.form-group textarea:focus + label {
    color: var(--primary-color);
}

body.light-mode .form-group input,
body.light-mode .form-group textarea {
    background-color: #ffffff;
    color: #000000;
    border: 2px solid #000000;
}

body.light-mode .form-group input:focus,
body.light-mode .form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

/* ============================================
   BARRES DE PROGRESSION
   ============================================ */

.progress-bar {
    background-color: var(--bg-secondary);
}

.progress-bar:after {
    background-color: var(--primary-color);
}

body.light-mode .progress-bar {
    background-color: #e0e0e0;
}

body.light-mode .progress-bar:after {
    background-color: var(--primary-color);
}

.circle-bg {
    stroke: var(--bg-secondary);
}

.circle-fill {
    stroke: var(--primary-color);
}

body.light-mode .circle-bg {
    stroke: #e0e0e0;
}

body.light-mode .circle-fill {
    stroke: var(--primary-color);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-top: 1px solid var(--border-color);
}

.footer-links a,
.footer-logo a {
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.footer-links a:hover,
.footer-logo a:hover {
    color: var(--primary-color);
}

body.light-mode .footer {
    background-color: #f8f9fa;
    border-top: 1px solid #e0e0e0;
}

/* ============================================
   ARTICLES
   ============================================ */

.article-body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4,
.article-body h5,
.article-body h6 {
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
}

.article-body p {
    color: var(--text-primary);
}

.article-body code {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

.article-body pre {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

body.light-mode .article-body code {
    background-color: #f4f4f4;
    color: var(--primary-color);
    border: 1px solid #e0e0e0;
}

body.light-mode .article-body pre {
    background-color: #f8f9fa;
    border: 1px solid #e0e0e0;
}

/* ============================================
   TABLEAUX
   ============================================ */

table {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
}

th {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

td {
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}

tr:hover {
    background-color: var(--bg-hover);
}

body.light-mode th {
    background-color: var(--primary-color);
    color: #ffffff;
}

body.light-mode tr:hover {
    background-color: #f8f9fa;
}

/* ============================================
   BLOCKQUOTES
   ============================================ */

blockquote {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--primary-color);
    color: var(--text-primary);
}

body.light-mode blockquote {
    background-color: #f8f9fa;
    border-left-color: var(--primary-color);
}

/* ============================================
   ICÔNES ET ÉLÉMENTS SPÉCIAUX
   ============================================ */

.info-item i,
.social-links a i,
.social-icons a i {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.info-item i:hover,
.social-links a:hover i,
.social-icons a:hover i {
    color: var(--secondary-color);
    transform: scale(1.2);
}

/* ============================================
   TAGS ET BADGES
   ============================================ */

.tag,
.badge,
.article-category,
.project-category {
    background-color: var(--primary-color);
    color: #ffffff;
}

body.light-mode .tag,
body.light-mode .badge {
    background-color: var(--primary-color);
    color: #ffffff;
}

/* ============================================
   TIMELINE
   ============================================ */

.timeline-item {
    background-color: var(--bg-card);
    border-left-color: var(--primary-color);
}

.timeline-content {
    color: var(--text-primary);
}

.timeline-content h4 {
    color: var(--text-primary);
}

/* ============================================
   SKILLS
   ============================================ */

.skill-category {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
}

.skill-info span {
    color: var(--text-primary);
}

/* ============================================
   QUOTES / CITATIONS
   ============================================ */

.quote-slide {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

body.light-mode .quote-slide {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
}

/* ============================================
   IMAGES ET MÉDIAS
   ============================================ */

img {
    transition: opacity 0.3s ease, filter 0.3s ease;
}

body.light-mode img {
    opacity: 1;
}

/* ============================================
   SCROLLBAR (optionnel)
   ============================================ */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

body.light-mode ::-webkit-scrollbar-track {
    background: #f0f0f0;
}

body.light-mode ::-webkit-scrollbar-thumb {
    background: var(--primary-color);
}

/* ============================================
   ÉLÉMENTS SPÉCIFIQUES SUPPLÉMENTAIRES
   ============================================ */

/* Hero Section */
.hero {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.hero-title {
    color: var(--text-primary);
}

/* About Section */
.about-text {
    color: var(--text-primary);
}

.about-img {
    border: 2px solid var(--border-color);
}

/* Projects Section */
.projects-grid {
    background-color: var(--bg-primary);
}

.project-card .project-title {
    color: var(--text-primary);
}

.project-card .project-summary {
    color: var(--text-secondary);
}

/* Skills Section */
.skills-container {
    background-color: var(--bg-primary);
}

.skill-category h3 {
    color: var(--text-primary);
}

/* Contact Section */
.contact-container {
    background-color: var(--bg-primary);
}

.contact-info {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
}

/* Article Meta */
.article-meta span {
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.article-header {
    background-color: var(--bg-primary);
}

.article-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

/* Share Buttons */
.share-btn {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.share-btn:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

body.light-mode .share-btn {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
}

body.light-mode .share-btn:hover {
    background-color: var(--primary-color);
    color: #ffffff;
}

/* Similar Articles */
.similar-article-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
}

.similar-article-title {
    color: var(--text-primary);
}

.similar-article-summary {
    color: var(--text-secondary);
}

/* Back Button */
.back-btn {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.back-btn:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
}

/* Loader */
.loader {
    background-color: var(--bg-primary);
}

/* Scroll Top Button */
.scroll-top {
    background-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--shadow-hover);
}

.scroll-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

/* ============================================
   TRANSITIONS GLOBALES
   ============================================ */

* {
    transition: background-color 0.3s ease, 
                color 0.3s ease, 
                border-color 0.3s ease,
                box-shadow 0.3s ease;
}

/* Exceptions pour les animations */
[data-animation],
.animate-in,
.loader,
.cursor,
.cursor-follower {
    transition: none;
}