:root {
    /* Brand Colors - Ne changent jamais */
    --brand-primary: #6366f1;
    --brand-primary-light: #8b5cf6;
    --brand-primary-dark: #4f46e5;
    --brand-accent: #06d6a0;
    --brand-accent-dark: #10b981;
    
    /* Light Theme Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-elevated: #ffffff;
    --bg-overlay: rgba(248, 250, 252, 0.8);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-quaternary: #94a3b8;
    --text-inverse: #ffffff;
    
    --border-primary: #e2e8f0;
    --border-secondary: #cbd5e1;
    --border-tertiary: #94a3b8;
    
    --surface-primary: #ffffff;
    --surface-secondary: #f8fafc;
    --surface-tertiary: #f1f5f9;
    --surface-elevated: #ffffff;
    
    /* Interactive Colors */
    --interactive-primary: var(--brand-primary);
    --interactive-primary-hover: var(--brand-primary-dark);
    --interactive-secondary: var(--bg-tertiary);
    --interactive-secondary-hover: var(--border-secondary);
    
    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: var(--brand-primary);
    
    /* Modern Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #06d6a0 0%, #10b981 100%);
    --gradient-surface: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    
    /* Modern Shadows */
    --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.1), 0 1px 2px 0 rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.1), 0 2px 4px -1px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -2px rgba(15, 23, 42, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
    
    /* Modern Transitions */
    --transition-fast: all 0.15s ease-out;
    --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Typography Scale */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

/* Dark Theme Colors */
body.dark-mode {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-elevated: #1e293b;
    --bg-overlay: rgba(15, 23, 42, 0.8);
    
    --text-primary: #f8fafc;
    --text-secondary: #e2e8f0;
    --text-tertiary: #cbd5e1;
    --text-quaternary: #94a3b8;
    --text-inverse: #0f172a;
    
    --border-primary: #334155;
    --border-secondary: #475569;
    --border-tertiary: #64748b;
    
    --surface-primary: #1e293b;
    --surface-secondary: #334155;
    --surface-tertiary: #475569;
    --surface-elevated: #334155;
    
    --interactive-secondary: var(--surface-secondary);
    --interactive-secondary-hover: var(--surface-tertiary);
    
    --gradient-surface: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    
    /* Dark mode shadows */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
}

/* Indicateur de chargement */
#loading-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(248, 249, 250, 0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#loading-indicator p {
    color: var(--dark);
    font-size: 1.1rem;
    font-weight: 500;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'SF Pro Display', sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Modern Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.2;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    transition: color var(--transition-normal);
}

h1 { font-size: var(--font-size-5xl); font-weight: 700; }
h2 { font-size: var(--font-size-4xl); font-weight: 600; }
h3 { font-size: var(--font-size-3xl); font-weight: 600; }
h4 { font-size: var(--font-size-2xl); font-weight: 600; }
h5 { font-size: var(--font-size-xl); font-weight: 500; }
h6 { font-size: var(--font-size-lg); font-weight: 500; }

p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-4);
    transition: color var(--transition-normal);
}

.text-large {
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.text-muted {
    color: var(--text-quaternary);
}

/* Modern Containers */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section {
    padding: var(--space-32) 0;
    position: relative;
    background-color: var(--bg-primary);
    transition: background-color var(--transition-normal);
}

.section.bg-light,
.section:nth-child(even) {
    background-color: var(--bg-secondary);
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-20);
    position: relative;
}

.section-title h2 {
    font-size: var(--font-size-4xl);
    position: relative;
    display: inline-block;
    margin-bottom: var(--space-4);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-top: var(--space-2);
    font-weight: 400;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--primary);
}

/* Modern Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-overlay);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-primary);
    z-index: 1000;
    transition: var(--transition-normal);
}

.header-scrolled {
    background-color: var(--surface-elevated);
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6) 0;
    transition: var(--transition-normal);
}

.header-scrolled .navbar {
    padding: var(--space-4) 0;
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.logo span {
    color: var(--primary);
}

.logo:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--space-8);
}

.nav-item {
    position: relative;
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--interactive-secondary), transparent);
    transition: var(--transition-normal);
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    color: var(--interactive-primary);
    background-color: var(--interactive-secondary);
    transform: translateY(-1px);
}

.nav-link.active {
    color: var(--interactive-primary);
    background-color: var(--interactive-secondary);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.hamburger:hover {
    background-color: rgba(99, 102, 241, 0.1);
}

.bar {
    display: block;
    width: 22px;
    height: 2px;
    margin: 2px 0;
    transition: var(--transition-fast);
    background-color: var(--text-primary);
    border-radius: var(--radius-full);
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Modern Hero Section */
.hero {
    min-height: 100vh;
    background: var(--gradient-surface);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: var(--space-20) 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.6;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 700;
    margin-bottom: var(--space-6);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideUpFade 0.8s ease-out;
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-12);
    font-weight: 400;
    animation: slideUpFade 0.8s ease-out 0.2s both;
}

.typed-text {
    font-weight: 600;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-btn {
    display: inline-block;
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: var(--transition-normal);
    animation: slideUpFade 0.8s ease-out 0.4s both;
    margin: 0 var(--space-3);
    position: relative;
    overflow: hidden;
}

.hero-btn:first-of-type {
    background: var(--gradient-primary);
    color: var(--text-inverse);
    box-shadow: var(--shadow-lg);
}

.hero-btn:first-of-type::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-normal);
}

.hero-btn:first-of-type:hover::before {
    left: 100%;
}

.hero-btn:first-of-type:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

.hero-btn.outline:hover {
    background: var(--interactive-primary);
    color: var(--text-inverse);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.hero-social {
    margin-top: var(--space-16);
    animation: slideUpFade 0.8s ease-out 0.6s both;
}

.hero-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    color: var(--text-secondary);
    font-size: var(--font-size-xl);
    margin: 0 var(--space-3);
    transition: var(--transition-normal);
    border-radius: var(--radius-lg);
    background: var(--surface-elevated);
    box-shadow: var(--shadow-md);
}

.hero-social a:hover {
    color: var(--interactive-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: var(--interactive-secondary);
}

/* Modern scroll indicator */
.scroll-down {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    animation: slideUpFade 0.8s ease-out 0.8s both;
}

.scroll-down-text {
    color: var(--text-quaternary);
    font-size: var(--font-size-xs);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

.scroll-down-icon {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-quaternary);
    border-radius: var(--radius-xl);
    position: relative;
    transition: var(--transition-normal);
}

.scroll-down:hover .scroll-down-icon {
    border-color: var(--interactive-primary);
}

.scroll-down:hover .scroll-down-text {
    color: var(--interactive-primary);
}

.scroll-down-icon::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    width: 4px;
    height: 4px;
    background: var(--text-quaternary);
    border-radius: 50%;
    transform: translateX(-50%);
    animation: scrollIndicator 2s infinite;
    transition: var(--transition-normal);
}

.scroll-down:hover .scroll-down-icon::before {
    background: var(--interactive-primary);
}

/* Modern Dark Mode Toggle */
.dark-mode-toggle {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    z-index: 1000;
    width: 56px;
    height: 56px;
    background: var(--surface-elevated);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

.dark-mode-toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
    background: var(--interactive-secondary);
}

.dark-mode-toggle i {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.dark-mode-toggle:hover i {
    color: var(--interactive-primary);
}

/* Smooth theme transition for all elements */
* {
    transition: background-color var(--transition-normal), 
                color var(--transition-normal), 
                border-color var(--transition-normal),
                box-shadow var(--transition-normal);
}

/* Modern animations */
@keyframes slideUpFade {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollIndicator {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateX(-50%) translateY(8px);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(16px);
    }
}

/* About Section */
.about-img {
    position: relative;
}

.about-img img {
    border-radius: 10px;
    box-shadow: var(--shadow);
    width: 100%;
    height: auto;
}

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

.about-content h3 {
    margin-bottom: 1rem;
    font-size: 2rem;
}

.about-content p {
    margin-bottom: 1.5rem;
    color: var(--secondary);
}

.about-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-box {
    display: flex;
    align-items: center;
}

.info-icon {
    font-size: 1.5rem;
    color: var(--primary);
    margin-right: 0.5rem;
}

.info-text span {
    font-weight: 600;
    display: block;
}

.skills {
    margin-top: 2rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-name {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.skill-bar {
    height: 10px;
    background: #e9ecef;
    border-radius: 5px;
    position: relative;
}

.skill-percentage {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--primary);
    border-radius: 5px;
    animation: skillAnimation 2s ease-out;
}

/* Experience Section */
/* Styles améliorés pour la section Expérience Professionnelle */
/* Modern Timeline */
.timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-8) 0;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background: var(--gradient-primary);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    border-radius: var(--radius-full);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: var(--space-8);
    box-sizing: border-box;
    opacity: 0;
    transform: translateY(50px);
    transition: var(--transition-slow);
}

.timeline-item.show {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-item:nth-child(odd)::before, 
.timeline-item:nth-child(even)::before {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;
    right: -12.5px;
    background: var(--bg-elevated);
    border: 4px solid var(--brand-primary);
    top: 30px;
    border-radius: var(--radius-full);
    z-index: 2;
    transition: var(--transition-normal);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

.timeline-item:nth-child(even)::before {
    left: -12.5px;
}

.timeline-item:hover::before {
    background: var(--brand-primary);
    transform: scale(1.2);
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--brand-primary);
    top: 42px;
    z-index: 1;
    transition: var(--transition-normal);
}

.timeline-item:nth-child(odd)::after {
    right: 0;
}

.timeline-item:nth-child(even)::after {
    left: 0;
}

.timeline-item:hover::after {
    width: 40px;
    background: var(--brand-primary);
}

.timeline-content {
    position: relative;
    padding: var(--space-8);
    background: var(--surface-elevated);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    overflow: hidden;
    z-index: 1;
    border: 1px solid var(--border-primary);
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    z-index: -1;
    transition: var(--transition-slow);
}

.timeline-item:hover .timeline-content {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.timeline-item.active .timeline-content::before,
.timeline-item:hover .timeline-content::before {
    opacity: 0.02;
}

.timeline-date {
    display: inline-block;
    background: var(--brand-primary);
    color: var(--text-inverse);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-weight: 600;
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    font-size: var(--font-size-sm);
}

.timeline-item:hover .timeline-date {
    background: var(--brand-primary-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.timeline-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-2);
    color: var(--text-primary);
    transition: var(--transition-normal);
    position: relative;
    display: inline-block;
    font-weight: 700;
}

.timeline-title::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--brand-primary);
    transition: var(--transition-normal);
}

.timeline-item:hover .timeline-title::after {
    width: 100%;
}

.timeline-company {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    font-style: italic;
    transition: var(--transition-normal);
    font-weight: 500;
}

.timeline-desc {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    line-height: 1.6;
    transition: var(--transition-normal);
}

.timeline-item:hover .timeline-desc {
    color: var(--text-primary);
}

.timeline-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-6);
    transition: var(--transition-normal);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
}

.timeline-item:hover .timeline-tech {
    max-height: 100px;
    opacity: 1;
}

.timeline-tech-tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--brand-primary);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition-normal);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.timeline-item:hover .timeline-tech-tag {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-3px);
    border-color: rgba(99, 102, 241, 0.3);
}

.timeline-expand {
    position: absolute;
    bottom: var(--space-4);
    right: var(--space-4);
    width: 30px;
    height: 30px;
    background: var(--brand-primary);
    color: var(--text-inverse);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    z-index: 2;
    border: none;
}

.timeline-item:hover .timeline-expand {
    transform: rotate(180deg);
}

.timeline-detail {
    height: 0;
    overflow: hidden;
    transition: var(--transition-slow);
    margin-top: 0;
    opacity: 0;
}

.timeline-item.expanded .timeline-detail {
    height: auto;
    margin-top: var(--space-6);
    opacity: 1;
}

.timeline-item.expanded .timeline-expand {
    transform: rotate(180deg);
}

/* Animations spéciales pour la timeline */
@keyframes timelinePulse {
    0% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
    }
}

.timeline-item:nth-child(1)::before {
    animation: timelinePulse 2s infinite;
}

/* Timeline styles now use CSS variables that automatically adapt to dark mode */

/* Responsive pour la timeline */
@media (max-width: 991px) {
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: calc(var(--space-16) + var(--space-2));
        padding-right: var(--space-6);
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-item:nth-child(odd)::before,
    .timeline-item:nth-child(even)::before {
        left: 16px;
    }
    
    .timeline-item:nth-child(odd)::after,
    .timeline-item:nth-child(even)::after {
        left: 30px;
        width: 40px;
    }
    
    .timeline-item:hover::after {
        width: 50px;
    }
}

/* Projects Section */


/* Styles améliorés pour la section Projets */
.projects-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Modern Project Cards */
.project-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
    border: 1px solid var(--border-primary);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--interactive-primary);
}

.project-img {
    overflow: hidden;
    height: 220px;
    position: relative;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.project-card:hover .project-img img {
    transform: scale(1.05);
}

.project-content {
    padding: var(--space-6);
    position: relative;
}

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    transition: var(--transition-normal);
}

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

.project-category {
    color: var(--interactive-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    display: inline-block;
    padding: var(--space-2) var(--space-3);
    background: var(--interactive-secondary);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    transition: var(--transition-normal);
}

.project-card:hover .project-category {
    background: var(--interactive-primary);
    color: var(--text-inverse);
}

.project-desc {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    line-height: 1.6;
    transition: var(--transition-normal);
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--interactive-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.project-link:hover {
    background: var(--interactive-primary);
    color: var(--text-inverse);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Modern Project Filters */
.project-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-12);
}

.filter-btn {
    background: var(--interactive-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-primary);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.filter-btn:hover {
    background: var(--interactive-primary);
    color: var(--text-inverse);
    border-color: var(--interactive-primary);
    transform: translateY(-1px);
}

.filter-btn.active {
    background: var(--interactive-primary);
    color: var(--text-inverse);
    border-color: var(--interactive-primary);
    box-shadow: var(--shadow-md);
}

/* Animations pour les projets */
.project-card {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.6s ease;
}

.project-card.show {
    opacity: 1;
    transform: translateY(0);
}

/* Améliorations du header et de la navigation */
.navbar {
    position: relative;
}

.nav-link {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    text-decoration: none;
    padding: 0.5rem 0;
    margin: 0 0.8rem;
    position: relative;
    transition: all 0.3s ease;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.nav-link:hover::before, 
.nav-link.active::before {
    width: 100%;
}

.nav-link.active {
    color: var(--primary);
}

/* Amélioration de la section Hero */
.hero {
    position: relative;
    background: var(--gradient);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 150px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.4) 0%, transparent 100%);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 2rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.typed-text {
    font-weight: 700;
    color: #fff;
    position: relative;
}

.typed-cursor {
    color: #fff;
    font-weight: 700;
}

.hero-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    margin: 0 0.5rem 1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.hero-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%) rotate(45deg);
    transition: transform 0.5s ease;
    z-index: -1;
}

.hero-btn:hover::before {
    transform: translateX(100%) rotate(45deg);
}

.hero-btn:first-child {
    background: #fff;
    color: #0078ff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.hero-btn:first-child:hover {
    background: #f8f9fa;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.hero-btn.outline {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.hero-btn.outline:hover {
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.hero-social {
    margin-top: 2rem;
}

.hero-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 50%;
    margin: 0 0.5rem;
    text-decoration: none;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-social a:hover {
    background: #fff;
    color: #0078ff;
    transform: translateY(-5px);
}

/* Scroll indicator */
.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
}

.scroll-down-text {
    color: #fff;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-down-icon {
    width: 30px;
    height: 50px;
    border: 2px solid #fff;
    border-radius: 15px;
    position: relative;
}

.scroll-down-icon::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    transform: translateX(-50%);
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

/* Amélioration du mode sombre */
.dark-mode-toggle {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: #343a40;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: 99;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.dark-mode-toggle:hover {
    transform: scale(1.1);
}

body.dark-mode {
    background-color: #1a1a1a;
    color: #f8f9fa;
}

.dark-mode .section {
    background-color: #1a1a1a;
}

.dark-mode .bg-light {
    background-color: #252525 !important;
}

.dark-mode .project-card,
.dark-mode .education-item,
.dark-mode .contact-item,
.dark-mode .timeline-content {
    background-color: #2d2d2d;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.dark-mode .project-title,
.dark-mode .education-degree,
.dark-mode .contact-title,
.dark-mode .timeline-title,
.dark-mode .section-title h2,
.dark-mode h1, .dark-mode h2, .dark-mode h3, .dark-mode h4 {
    color: #f8f9fa;
}

.dark-mode .project-desc,
.dark-mode .education-school,
.dark-mode .contact-value,
.dark-mode .timeline-desc,
.dark-mode p {
    color: #adb5bd;
}

.dark-mode .skill-bar {
    background-color: #3d3d3d;
}

.dark-mode .form-control {
    background-color: #2d2d2d;
    border-color: #444;
    color: #f8f9fa;
}

.dark-mode .form-control::placeholder {
    color: #adb5bd;
}

.dark-mode .filter-btn {
    background-color: #3d3d3d;
    color: #f8f9fa;
}

.dark-mode header {
    background-color: rgba(29, 29, 29, 0.95);
}

.dark-mode .nav-link {
    color: #f8f9fa;
}

.dark-mode .bar {
    background-color: #f8f9fa;
}

.dark-mode .logo {
    color: #f8f9fa;
}

.dark-mode .dark-mode-toggle {
    background: #f8f9fa;
    color: #343a40;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dark-mode .preloader {
    background: #1a1a1a;
}

.preloader-inner {
    position: relative;
    width: 80px;
    height: 80px;
}

.preloader-circle {
    position: absolute;
    width: 64px;
    height: 64px;
    border: 8px solid;
    border-color: #0078ff transparent #0078ff transparent;
    border-radius: 50%;
    animation: preloader-spin 1.2s linear infinite;
}

@keyframes preloader-spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Animations et transitions supplémentaires */
.fade-in {
    animation: fadeIn 1s ease forwards;
}

.fade-in-up {
    animation: fadeInUp 1s ease forwards;
}

.fade-in-down {
    animation: fadeInDown 1s ease forwards;
}

.fade-in-left {
    animation: fadeInLeft 1s ease forwards;
}

.fade-in-right {
    animation: fadeInRight 1s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Effet de parallaxe */
.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* Education Section */
.education-item {
    padding: 2rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    transition: var(--transition);
}

.education-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.education-year {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.education-degree {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.education-school {
    color: var(--secondary);
    font-style: italic;
    margin-bottom: 1rem;
}

/* Modern Contact Section */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

.contact-item {
    padding: var(--space-8);
    background: var(--surface-elevated);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid var(--border-primary);
}

.contact-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--interactive-primary);
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    font-size: var(--font-size-2xl);
    color: var(--interactive-primary);
    background: var(--interactive-secondary);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-4);
    transition: var(--transition-normal);
}

.contact-item:hover .contact-icon {
    background: var(--interactive-primary);
    color: var(--text-inverse);
    transform: scale(1.1);
}

.contact-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.contact-value {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    transition: var(--transition-normal);
}

.contact-item:hover .contact-value {
    color: var(--interactive-primary);
}

/* Modern Contact Form */
.contact-form .form-group {
    margin-bottom: var(--space-6);
}

.form-control {
    width: 100%;
    padding: var(--space-4) var(--space-5);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    background: var(--surface-elevated);
    color: var(--text-primary);
    transition: var(--transition-normal);
    font-family: inherit;
}

.form-control::placeholder {
    color: var(--text-quaternary);
    transition: var(--transition-normal);
}

.form-control:focus {
    border-color: var(--interactive-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    outline: none;
    background: var(--bg-primary);
}

.form-control:focus::placeholder {
    color: var(--text-tertiary);
    transform: translateY(-2px);
}

textarea.form-control {
    min-height: 140px;
    resize: vertical;
    line-height: 1.6;
}

.btn-submit {
    background: var(--gradient-primary);
    color: var(--text-inverse);
    padding: var(--space-4) var(--space-8);
    border: none;
    border-radius: var(--radius-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-submit::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-normal);
}

.btn-submit:hover::before {
    left: 100%;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-submit:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

/* Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-social {
    margin: 1.5rem 0;
}

.footer-social a {
    color: var(--white);
    font-size: 1.5rem;
    margin: 0 0.5rem;
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--primary);
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.footer-link {
    color: var(--white);
    text-decoration: none;
    margin: 0 1rem;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--primary);
}

.copyright {
    color: #adb5bd;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: 99;
    cursor: pointer;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--dark);
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes skillAnimation {
    from {
        width: 0;
    }
}

/* Responsive */
@media (max-width: 991px) {
    .section-title h2 {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .timeline::after {
        left: 31px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    .timeline-item:nth-child(even) {
        left: 0;
    }

    .timeline-item:nth-child(odd)::before,
    .timeline-item:nth-child(even)::before {
        left: 21px;
        top: 22px;
    }

    .timeline-item:nth-child(odd)::after,
    .timeline-item:nth-child(even)::after {
        left: 61px;
        top: 22px;
        border-right: 10px solid var(--white);
        border-left: 0;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0.5rem 0;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        gap: 0;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        padding: 2rem 0;
    }

    .nav-item {
        margin: 1rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .about-img {
        margin-bottom: 2rem;
    }

    .about-info {
        grid-template-columns: 1fr;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
}


.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-overlay);
    backdrop-filter: blur(8px);
    z-index: 1050;
    overflow-y: auto;
    perspective: 1000px;
}

.modal-content {
    background-color: var(--surface-elevated);
    margin: 5% auto;
    padding: 0;
    border-radius: var(--radius-2xl);
    width: 90%;
    max-width: 1000px;
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--border-primary);
    overflow: hidden;
    opacity: 0;
    transform: translateY(-50px) rotateX(10deg);
    transition: var(--transition-slow);
    position: relative;
}

.modal.show .modal-content {
    opacity: 1;
    transform: translateY(0) rotateX(0);
}

.modal-header {
    position: relative;
    background: var(--gradient-primary);
    padding: var(--space-10);
    color: var(--text-inverse);
}

.modal-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-4);
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.modal-category {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-inverse);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.close-modal {
    position: absolute;
    top: var(--space-5);
    right: var(--space-6);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-inverse);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    transition: var(--transition-normal);
    z-index: 2;
    border: none;
}

.close-modal:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--space-10);
}

.modal-description {
    line-height: 1.8;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.modal-description p {
    margin-bottom: var(--space-6);
}

.modal-description h3 {
    color: var(--text-primary);
    margin: var(--space-8) 0 var(--space-4);
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

.modal-description ul {
    margin-bottom: var(--space-8);
    padding-left: var(--space-6);
}

.modal-description li {
    margin-bottom: var(--space-3);
    position: relative;
}

.modal-description li::before {
    content: '•';
    color: var(--brand-primary);
    font-weight: bold;
    position: absolute;
    left: calc(-1 * var(--space-4));
}

.modal-gallery {
    margin: var(--space-8) 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-4);
}

.gallery-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: var(--transition-normal);
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.gallery-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.modal-tech {
    margin: var(--space-8) 0;
}

.tech-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-6);
    color: var(--text-primary);
    position: relative;
    display: inline-block;
    padding-bottom: var(--space-2);
    font-weight: 600;
}

.tech-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--brand-primary);
    border-radius: var(--radius-full);
}

.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.tech-tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--brand-primary);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: var(--transition-normal);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.tech-tag:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-3px);
    border-color: rgba(99, 102, 241, 0.3);
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-6);
    margin-top: var(--space-10);
}

.modal-btn {
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.modal-btn i {
    margin-right: var(--space-2);
}

.modal-btn.primary {
    background: var(--brand-primary);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
}

.modal-btn.primary:hover {
    background: var(--brand-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.modal-btn.secondary {
    background: var(--surface-secondary);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-primary);
}

.modal-btn.secondary:hover {
    background: var(--interactive-secondary-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Galerie en plein écran */
.fullscreen-gallery {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1060;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.fullscreen-gallery.show {
    opacity: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-content {
    width: 90%;
    max-width: 1200px;
    height: 80%;
    position: relative;
}

.gallery-main {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-main img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 5px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.gallery-close {
    position: absolute;
    top: -50px;
    right: 0;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.gallery-close:hover {
    transform: rotate(90deg);
}

.gallery-nav {
    position: absolute;
    bottom: -60px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.gallery-thumb {
    width: 80px;
    height: 50px;
    border-radius: 5px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0.5;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.gallery-thumb.active {
    opacity: 1;
    border-color: #0078ff;
}

.gallery-thumb:hover {
    opacity: 1;
}

.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.gallery-arrow:hover {
    background: rgba(255, 255, 255, 0.2);
}

.gallery-prev {
    left: -80px;
}

.gallery-next {
    right: -80px;
}

/* Dark mode modal styles now handled by CSS variables */

/* Animation des modales */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-50px) rotateX(10deg);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

/* Responsive pour les modales */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .modal-header {
        padding: 1.5rem;
    }
    
    .modal-title {
        font-size: 1.5rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .modal-gallery {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .gallery-arrow {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .gallery-prev {
        left: -50px;
    }
    
    .gallery-next {
        right: -50px;
    }
    
    .modal-actions {
        flex-direction: column;
        gap: 1rem;
    }
    
    .modal-btn {
        width: 100%;
    }
}



/**********************************************************************************************************/



/* Styles pour les barres de compétences interactives */
.skill-item {
    cursor: pointer;
    transition: transform 0.3s ease;
    margin-bottom: 1.8rem;
}

.skill-hover {
    transform: translateX(5px);
}

.skill-name {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.skill-bar {
    height: 12px;
    background: #e9ecef;
    border-radius: 6px;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.skill-percentage {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, #0078ff, #00c6ff);
    border-radius: 6px;
    transition: width 1.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.skill-percentage::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
                rgba(255, 255, 255, 0.1) 0%, 
                rgba(255, 255, 255, 0.3) 50%, 
                rgba(255, 255, 255, 0.1) 100%);
    animation: skillShine 2s infinite linear;
}

@keyframes skillShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Styles pour les éléments de formation interactifs */
.education-container {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.education-item {
    background: #fff;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease-out;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border-left: 5px solid transparent;
}

.education-hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    border-left: 5px solid #0078ff;
}

.education-expanded {
    grid-column: 1 / -1;
    transform: scale(1.02);
    z-index: 1;
    border-left: 5px solid #0078ff;
}

.education-year {
    display: inline-block;
    background: #0078ff;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
    font-weight: 500;
}

.education-degree {
    font-size: 1.3rem;
    margin-bottom: 0.7rem;
    transition: color 0.3s ease;
}

.education-item:hover .education-degree {
    color: #0078ff;
}

.education-school {
    color: #6c757d;
    font-size: 1rem;
    font-style: italic;
}

.education-details {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.education-details p {
    margin-bottom: 1rem;
    color: #6c757d;
}

.education-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.education-skills span {
    background: #e9f5ff;
    color: #0078ff;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Styles pour les éléments de contact interactifs */
.contact-item {
    background: #fff;
    border-radius: 10px;
    padding: 2rem 1rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #0078ff, #00c6ff);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.contact-item:hover::before {
    transform: scaleX(1);
}

.contact-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.contact-icon {
    font-size: 2.5rem;
    color: #0078ff;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
    display: inline-block;
}

.contact-item:hover .contact-icon {
    transform: scale(1.1);
}

.contact-title {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.contact-value {
    color: #6c757d;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.contact-item:hover .contact-value {
    color: #0078ff;
}

.contact-pulse {
    animation: contactPulse 1s;
}

.copy-notification {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(40, 167, 69, 0.9);
    color: white;
    padding: 0.5rem;
    font-size: 0.9rem;
    transform: translateY(0);
    transition: transform 0.3s ease;
    animation: slideUp 0.3s forwards;
}

.contact-tooltip {
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.3s ease, bottom 0.3s ease;
    pointer-events: none;
}

.contact-item:hover .contact-tooltip {
    opacity: 1;
    bottom: 10px;
}

@keyframes contactPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.fadeOut {
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* Styles pour le formulaire de contact */
.form-error {
    background: #ffe5e5;
    color: #d63031;
    padding: 0.8rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    animation: shakeError 0.5s ease-in-out;
}

.form-error i {
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

.form-success {
    text-align: center;
    padding: 2rem;
    animation: fadeIn 0.5s ease-in-out;
}

.success-icon {
    font-size: 4rem;
    color: #28a745;
    margin-bottom: 1rem;
    animation: successPulse 1.5s infinite;
}

.form-success h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #28a745;
}

.form-success p {
    color: #6c757d;
    margin-bottom: 2rem;
}

@keyframes shakeError {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Duplicate modal styles removed - using modernized modal styles above */

/* Styles pour le bouton back-to-top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: 99;
    cursor: pointer;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
    animation: bounce 2s infinite;
}

.back-to-top:hover {
    background: var(--dark);
    animation: none;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}



/* Styles pour les statistiques */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

/* Modern Stat Items */
.stat-item {
    background: var(--surface-elevated);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    position: relative;
    border: 1px solid var(--border-primary);
}

.stat-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--interactive-primary);
}

.stat-number {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--interactive-primary);
    margin-bottom: var(--space-2);
    transition: var(--transition-normal);
    line-height: 1;
}

.stat-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-normal);
    margin: 0;
}

/* Modern Testimonials Section */
.testimonials-carousel {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: var(--radius-2xl);
}

.testimonials-container {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-item {
    background: var(--surface-elevated);
    border-radius: var(--radius-2xl);
    padding: var(--space-12);
    box-shadow: var(--shadow-lg);
    margin: var(--space-4);
    flex: 0 0 100%;
    max-width: 100%;
    transition: var(--transition-normal);
    position: relative;
    border: 1px solid var(--border-primary);
}

.testimonial-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.testimonial-content {
    margin-bottom: var(--space-8);
    text-align: center;
}

.testimonial-content p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    position: relative;
    padding: 0 var(--space-4);
}

.testimonial-content p::before,
.testimonial-content p::after {
    content: '"';
    font-size: var(--font-size-4xl);
    color: var(--interactive-primary);
    position: absolute;
    font-family: Georgia, serif;
}

.testimonial-content p::before {
    top: -10px;
    left: -10px;
}

.testimonial-content p::after {
    bottom: -30px;
    right: -10px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
}

.author-img {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 3px solid var(--interactive-primary);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.author-img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.author-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-1);
    color: var(--text-primary);
}

.author-info p {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin: 0;
}

.testimonial-navigation {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-8);
}

.testimonial-dot {
    width: 12px;
    height: 12px;
    background: var(--border-secondary);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.testimonial-dot:hover {
    background: var(--interactive-primary);
    transform: scale(1.1);
}

.testimonial-dot.active {
    background: var(--interactive-primary);
    transform: scale(1.3);
    border-color: var(--interactive-secondary);
}

/* Amélioration de la section À propos */
.about-section {
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 120, 255, 0.05) 0%, rgba(0, 198, 255, 0.02) 100%);
    z-index: -1;
}

.about-container {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    align-items: center;
}

.about-img {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.about-img::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 5px solid #0078ff;
    border-radius: 10px;
    z-index: -1;
    opacity: 0.3;
}

.about-img::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 60%;
    height: 60%;
    background: linear-gradient(135deg, #0078ff, #00c6ff);
    z-index: -1;
    border-radius: 10px;
    opacity: 0.2;
}

.about-img img {
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    height: auto;
    transition: all 0.5s ease;
    position: relative;
    z-index: 1;
}

.about-img:hover img {
    transform: scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 120, 255, 0.2);
}

.about-content {
    flex: 2;
    min-width: 300px;
}

.about-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #343a40;
    position: relative;
    padding-bottom: 1rem;
}

.about-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, #0078ff, #00c6ff);
}

.about-subtitle {
    color: #0078ff;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.about-text {
    color: #6c757d;
    line-height: 1.8;
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.about-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.info-box {
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
    padding: 1rem;
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.8);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.info-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 120, 255, 0.1);
    background-color: white;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #0078ff, #00c6ff);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 1rem;
    box-shadow: 0 5px 15px rgba(0, 120, 255, 0.2);
}

.info-text {
    flex: 1;
}

.info-text span:first-child {
    display: block;
    color: #343a40;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.info-text span:last-child,
.info-text a {
    color: #0078ff;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.info-text a:hover {
    color: #005bb7;
    text-decoration: underline;
}

/* Amélioration de la section Expertise .NET au Cameroun */
.local-expertise {
    background-color: #f8f9fa;
    position: relative;
}

.local-expertise::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/cameroon-map-outline.svg');
    background-repeat: no-repeat;
    background-position: right -100px center;
    background-size: 40%;
    opacity: 0.05;
    z-index: 0;
}

.local-expertise-content {
    position: relative;
    z-index: 1;
}

.expertise-intro {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #495057;
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.expertise-item {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
    border-bottom: 4px solid transparent;
}

.expertise-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 120, 255, 0.05) 0%, rgba(0, 198, 255, 0.05) 100%);
    z-index: -1;
}

.expertise-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 120, 255, 0.1);
    border-bottom: 4px solid #0078ff;
}

.expertise-item h3 {
    display: flex;
    align-items: center;
    font-size: 1.3rem;
    margin-bottom: 1.2rem;
    color: #343a40;
    position: relative;
}

.expertise-item h3 i {
    color: #0078ff;
    margin-right: 0.8rem;
    font-size: 1.5rem;
    background: rgba(0, 120, 255, 0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.expertise-item:hover h3 i {
    background: #0078ff;
    color: white;
    transform: rotateY(360deg);
    transition: transform 0.8s, background 0.3s, color 0.3s;
}

.expertise-item p {
    color: #6c757d;
    line-height: 1.8;
}

/* Correction des boutons de navigation de la section Témoignages */
.testimonial-arrows {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 -1rem;
    z-index: 10;
    transform: translateY(-50%);
    left: 0;
    right: 0;
    pointer-events: none; /* Permet aux clics de passer à travers */
}

.testimonial-arrow {
    width: 50px;
    height: 50px;
    background-color: #0078ff;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    pointer-events: auto; /* Réactive les événements de clic */
    opacity: 0.9;
}

.testimonial-arrow:hover {
    background-color: #005bb7;
    transform: scale(1.1);
}

.testimonial-prev {
    margin-left: 1rem;
}

.testimonial-next {
    margin-right: 1rem;
}

.testimonial-navigation {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
    gap: 0.8rem;
}

.testimonial-dot {
    width: 15px;
    height: 15px;
    background: rgba(0, 120, 255, 0.2);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.testimonial-dot.active {
    background: #0078ff;
    transform: scale(1.2);
}

.testimonial-dot:hover {
    background: rgba(0, 120, 255, 0.5);
}

/* Mode sombre pour les sections améliorées */

/* Mode sombre pour les sections améliorées */
.dark-mode .about-title {
    color: #f8f9fa;
}

.dark-mode .about-text,
.dark-mode .expertise-item p {
    color: #adb5bd;
}

.dark-mode .info-box {
    background-color: rgba(45, 45, 45, 0.8);
}

.dark-mode .info-box:hover {
    background-color: #3d3d3d;
}

.dark-mode .info-text span:first-child {
    color: #e9ecef;
}

.dark-mode .expertise-item {
    background: #2d2d2d;
}

.dark-mode .expertise-item h3 {
    color: #f8f9fa;
}

.dark-mode .expertise-intro {
    color: #adb5bd;
}

/* Styles pour le blog */
.blog-container {
    margin-top: var(--space-8);
}

.blog-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.blog-post {
    background: var(--surface-elevated);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 1px solid var(--border-primary);
    position: relative;
}

.blog-post:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.blog-img {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.blog-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.blog-featured {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: var(--brand-accent);
    color: var(--text-inverse);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    z-index: 2;
}

.blog-post:hover .blog-img img {
    transform: scale(1.1);
}

.blog-content {
    padding: var(--space-6);
}

.blog-date {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.blog-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-4);
    transition: var(--transition-normal);
    line-height: 1.4;
    color: var(--text-primary);
    font-weight: 600;
}

.blog-post:hover .blog-title {
    color: var(--brand-primary);
}

.blog-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

.blog-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.blog-link {
    color: var(--brand-primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: var(--transition-normal);
    font-size: var(--font-size-sm);
}

.blog-link:hover {
    color: var(--brand-primary-dark);
    transform: translateX(5px);
}

.blog-views {
    color: var(--text-tertiary);
    font-size: var(--font-size-xs);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.blog-view-more {
    text-align: center;
    margin-top: var(--space-8);
}

.btn-view-more {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    background: var(--brand-primary);
    color: var(--text-inverse);
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.btn-view-more:hover {
    background: var(--brand-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.blog-empty, .blog-error {
    text-align: center;
    padding: var(--space-16);
    color: var(--text-secondary);
}

.blog-empty i, .blog-error i {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--space-6);
    opacity: 0.3;
}

.blog-empty h3, .blog-error h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    font-size: var(--font-size-2xl);
}

/* Responsive */
@media (max-width: 768px) {
    .blog-posts-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .blog-img {
        height: 180px;
    }
    
    .blog-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }
}

/* Styles pour le mode sombre */
.dark-mode .stat-item,
.dark-mode .testimonial-item {
    background-color: #2d2d2d;
}

.dark-mode .stat-title,
.dark-mode .testimonial-content p,
.dark-mode .author-info p {
    color: #adb5bd;
}

.dark-mode .stat-item:hover::before {
    background: linear-gradient(135deg, #0078ff 0%, #00c6ff 100%);
}

.dark-mode .testimonial-dot {
    background: #555;
}

.dark-mode .testimonial-dot.active {
    background: var(--primary);
}

.dark-mode .author-info h4 {
    color: #f8f9fa;
}

/* Blog styles now use CSS variables and adapt automatically to dark mode */

/* Modern Statistics Section */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
    margin: var(--space-16) auto;
    max-width: 1200px;
    padding: 0 var(--space-4);
}

/* Language Selector */
.language-selector {
    margin-left: 1rem;
    position: relative;
}

.language-form {
    margin: 0;
}

.language-select {
    background: var(--surface-elevated);
    border: 1px solid var(--border-primary);
    border-radius: 25px;
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    outline: none;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    min-width: 80px;
}

.language-select:hover {
    background: var(--interactive-secondary-hover);
    border-color: var(--border-secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.language-select:focus {
    background: var(--surface-elevated);
    border-color: var(--interactive-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.language-select option {
    background: var(--surface-primary);
    color: var(--text-primary);
    padding: 0.5rem;
    border: none;
}

/* Dark mode styles for language selector */
.dark-mode .language-select {
    background: var(--surface-elevated);
    border-color: var(--border-primary);
    color: var(--text-primary);
}

.dark-mode .language-select:hover {
    background: var(--interactive-secondary-hover);
    border-color: var(--border-secondary);
}

.dark-mode .language-select option {
    background: var(--surface-primary);
    color: var(--text-primary);
}

/* Responsive Language Selector */
@media (max-width: 768px) {
    .language-selector {
        position: absolute;
        top: 100%;
        right: 60px; /* Position à gauche du hamburger */
        margin: 0;
        z-index: 1001;
        transform: translateY(10px);
    }
    
    .language-select {
        background: var(--surface-elevated);
        border: 1px solid var(--border-primary);
        border-radius: 20px;
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
        box-shadow: var(--shadow-lg);
        backdrop-filter: blur(15px);
    }
    
    /* Mobile menu ouvert */
    .nav-menu.open ~ .language-selector {
        top: auto;
        bottom: -50px;
        right: 0;
        left: 50%;
        transform: translateX(-50%);
        background: var(--surface-elevated);
        border-radius: 25px;
        padding: 0.5rem;
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.open ~ .language-selector .language-select {
        background: transparent;
        border: none;
        box-shadow: none;
        text-align: center;
    }
}

/* Très petits écrans */
@media (max-width: 480px) {
    .language-selector {
        right: 50px;
    }
    
    .language-select {
        padding: 0.3rem 0.6rem;
        font-size: 0.8rem;
        min-width: 70px;
    }
}

/* Améliorations du mode clair */

/* Amélioration de la lisibilité du header en mode clair */
:root {
    --header-bg-light: rgba(255, 255, 255, 0.98);
    --header-shadow-light: 0 2px 20px rgba(0, 0, 0, 0.08);
}

header {
    background: var(--header-bg-light);
    box-shadow: var(--header-shadow-light);
    backdrop-filter: blur(20px);
}

/* Mode clair spécifique pour le header */
body:not(.dark-mode) header {
    background: var(--header-bg-light);
    border-bottom: 1px solid var(--border-primary);
}

body:not(.dark-mode) .nav-link {
    color: var(--text-primary);
    font-weight: 500;
}

body:not(.dark-mode) .nav-link:hover {
    color: var(--interactive-primary);
}

body:not(.dark-mode) .logo {
    color: var(--text-primary);
}

/* Amélioration du bouton dark mode toggle */
.dark-mode-toggle {
    background: var(--surface-elevated);
    border: 1px solid var(--border-primary);
    color: var(--text-secondary);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.dark-mode-toggle:hover {
    background: var(--interactive-secondary-hover);
    color: var(--interactive-primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

/* Mode clair pour les formulaires */
body:not(.dark-mode) .form-control,
body:not(.dark-mode) input,
body:not(.dark-mode) textarea,
body:not(.dark-mode) select {
    background: var(--surface-elevated);
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
}

body:not(.dark-mode) .form-control:focus,
body:not(.dark-mode) input:focus,
body:not(.dark-mode) textarea:focus,
body:not(.dark-mode) select:focus {
    border-color: var(--interactive-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    outline: none;
}

/* Mode clair pour les cartes */
body:not(.dark-mode) .project-card,
body:not(.dark-mode) .education-item,
body:not(.dark-mode) .contact-item {
    background: var(--surface-elevated);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
}

body:not(.dark-mode) .project-card:hover,
body:not(.dark-mode) .education-item:hover,
body:not(.dark-mode) .contact-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Mode clair pour les boutons */
body:not(.dark-mode) .btn {
    background: var(--interactive-primary);
    color: white;
    border: none;
    box-shadow: var(--shadow-sm);
}

body:not(.dark-mode) .btn:hover {
    background: var(--interactive-primary-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

body:not(.dark-mode) .btn.outline {
    background: transparent;
    color: var(--interactive-primary);
    border: 1px solid var(--interactive-primary);
}

body:not(.dark-mode) .btn.outline:hover {
    background: var(--interactive-primary);
    color: white;
}

/* Amélioration du contraste des textes en mode clair */
body:not(.dark-mode) {
    color: var(--text-primary);
}

body:not(.dark-mode) h1,
body:not(.dark-mode) h2,
body:not(.dark-mode) h3,
body:not(.dark-mode) h4,
body:not(.dark-mode) h5,
body:not(.dark-mode) h6 {
    color: var(--text-primary);
}

body:not(.dark-mode) p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Hero section en mode clair */
body:not(.dark-mode) .hero {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

body:not(.dark-mode) .hero-title {
    color: var(--text-primary);
}

body:not(.dark-mode) .hero-subtitle {
    color: var(--text-secondary);
}

/* Amélioration du responsive pour la navigation */
@media (max-width: 768px) {
    body:not(.dark-mode) .nav-menu {
        background: var(--surface-elevated);
        border: 1px solid var(--border-primary);
        box-shadow: var(--shadow-xl);
        backdrop-filter: blur(20px);
    }
    
    body:not(.dark-mode) .nav-menu.open {
        background: var(--surface-elevated);
    }
    
    body:not(.dark-mode) .hamburger span {
        background: var(--text-primary);
    }
}