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

:root {
    /* Colors - Palette plus moderne et contrastée */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #f1f5f9;
    --accent-color: #06b6d4;
    --accent-secondary: #8b5cf6;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --background: #ffffff;
    --background-alt: #f8fafc;
    --background-dark: #0f172a;
    
    /* Typography - Nouvelles polices */
    --font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    --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 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Shadows - Plus prononcées */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Import Google Fonts - Nouvelles polices */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
    font-weight: 400;
}

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

/* Typography - Style plus moderne */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.025em;
}

h1 { 
    font-size: var(--font-size-6xl);
    font-weight: 700;
    letter-spacing: -0.05em;
}
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: 500;
}
h5 { 
    font-size: var(--font-size-xl);
    font-weight: 500;
}
h6 { 
    font-size: var(--font-size-lg);
    font-weight: 500;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-weight: 400;
}

/* Buttons - Style plus moderne */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-full {
    width: 100%;
}

/* Navigation - Style plus épuré */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo .logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.025em;
}

.nav-links {
    display: flex;
    gap: var(--spacing-2xl);
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

/* Hero Section - Design plus moderne */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.2) 0%, transparent 50%);
    opacity: 0.8;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    line-height: 1.1;
    letter-spacing: -0.05em;
}

.title-line {
    display: block;
}

.highlight {
    background: linear-gradient(135deg, #06b6d4, #8b5cf6, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-3xl);
    opacity: 0.9;
    line-height: 1.6;
    font-weight: 400;
    color: white;

}

.hero-actions {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

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

.code-block {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    max-width: 450px;
    width: 100%;
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-dots {
    display: flex;
    gap: var(--spacing-sm);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background-color: #ff5f56; }
.dot.yellow { background-color: #ffbd2e; }
.dot.green { background-color: #27ca3f; }

.code-title {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-xs);
    font-family: var(--font-mono);
}

.code-line {
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-mono);
}

.indent {
    padding-left: var(--spacing-xl);
}

.code-keyword { color: #c792ea; }
.code-variable { color: #82aaff; }
.code-operator { color: #89ddff; }
.code-string { color: #c3e88d; }
.code-bracket { color: #89ddff; }
.code-comma { color: #89ddff; }

/* Section Styles */
section {
    padding: var(--spacing-4xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.025em;
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    font-weight: 400;
}

/* About Section */
.about {
    background-color: var(--background-alt);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.about-text p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
}

.stat {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.stat-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-image {
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
}

.profile-photo {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-xl);
    border: 4px solid white;
    transition: all var(--transition-normal);
}

.profile-photo:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-2xl);
}

/* Experience Section */
.experience-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-4xl);
    padding-left: 100px;
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
}

.marker-dot {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    box-shadow: var(--shadow-xl);
    border: 4px solid white;
}

.marker-dot::after {
    content: '';
    width: 24px;
    height: 24px;
    background-color: white;
    border-radius: 50%;
}

.experience-card {
    background-color: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.experience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.experience-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.experience-header {
    margin-bottom: var(--spacing-xl);
}

.experience-title {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.025em;
}

.experience-image {
    float: right;
    width: 120px;
    height: 120px;
}

.experience-image img {
    width: 100%;
}

.experience-meta {
    display: flex;
    gap: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.experience-location {
    font-weight: 500;
    color: var(--primary-color);
}

.experience-duration {
    color: var(--text-light);
}

.experience-role {
    margin-bottom: var(--spacing-lg);
}

.experience-role strong {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.experience-client {
    color: var(--accent-color);
    font-weight: 500;
    font-style: italic;
    margin-left: var(--spacing-sm);
}

.team-size {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
    font-weight: 500;
}

.experience-summary {
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    font-size: var(--font-size-base);
}

.experience-bilan {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--background-alt);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
}

.experience-bilan h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.bilan-content {
    line-height: 1.8;
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

.bilan-content p {
    margin-bottom: var(--spacing-sm);
}

.bilan-content p:last-child {
    margin-bottom: 0;
}

.bilan-content ul,
.bilan-content ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-xl);
}

.bilan-content li {
    margin-bottom: var(--spacing-xs);
}

.experience-technologies {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-tag {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-lg);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.tech-tag:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.experience-url {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.url-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    color: white;
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.url-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
    text-decoration: none;
}

.url-link i {
    font-size: var(--font-size-xs);
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-3xl);
}

.skill-category {
    background-color: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.category-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    letter-spacing: -0.025em;
}

.category-technologies {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.skill-name {
    min-width: 120px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.skill-bar {
    flex: 1;
    height: 10px;
    background-color: var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    width: 85%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-lg);
    transition: width var(--transition-slow);
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

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

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl);
    background-color: var(--background-alt);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.contact-icon svg {
    width: 28px;
    height: 28px;
}

.contact-details h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-details p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-form {
    background-color: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-input {
    width: 100%;
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    background-color: white;
    font-family: var(--font-family);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--background-dark), #1e293b);
    color: white;
    padding: var(--spacing-3xl) 0;
}

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

.footer-text p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-weight: 500;
}

.footer-link:hover {
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-3xl);
    }
    
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .timeline-item {
        padding-left: 0px;
    }
    
    .experience-timeline::before {
        left: 30px;
    }
    
    .marker-dot {
        display: none;
    }
    
    .marker-dot::after {
        width: 18px;
        height: 18px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .experience-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .section-title {
        font-size: var(--font-size-4xl);
    }
    
    .btn {
        padding: var(--spacing-lg) var(--spacing-xl);
        font-size: var(--font-size-sm);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 250px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.timeline-item {
    animation: fadeInUp 0.8s ease-out;
}

.experience-card {
    animation: fadeInUp 0.8s ease-out;
}

/* Scroll animations */
@media (prefers-reduced-motion: no-preference) {
    .timeline-item {
        opacity: 0;
        transform: translateY(40px);
        transition: all 0.8s ease-out;
    }
    
    .timeline-item.visible {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Effets de particules pour le hero */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(255,255,255,0.3), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.2), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(255,255,255,0.4), transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(255,255,255,0.3), transparent);
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: sparkle 20s linear infinite;
    opacity: 0.6;
}

@keyframes sparkle {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-200px); }
}