/* ========================================
   1. VARIABLES & CONFIGURATION
   ======================================== */

:root {
    /* Couleurs principales */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #0ea5e9;
    --color-accent: #8b5cf6;
    
    /* Couleurs de fond */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    
    /* Couleurs de texte */
    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-text-tertiary: #64748b;
    
    /* Couleurs UI */
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* 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;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

/* Mode sombre */
[data-theme="dark"] {
    --color-primary: #60a5fa;
    --color-primary-dark: #3b82f6;
    --color-primary-light: #93c5fd;
    --color-secondary: #38bdf8;
    --color-accent: #a78bfa;
    
    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;
    --color-text-primary: #f8fafc;
    --color-text-secondary: #cbd5e1;
    --color-text-tertiary: #94a3b8;
    --color-border: #334155;
    --color-border-light: #1e293b;
}

/* ========================================
   2. RESET & BASE
   ======================================== */

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    transition: background-color var(--transition-base), color var(--transition-base);
    overflow-x: hidden;
}

::selection {
    background-color: var(--color-primary);
    color: white;
}

/* ========================================
   3. TYPOGRAPHIE
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    color: var(--color-primary-dark);
}

/* ========================================
   4. LAYOUT
   ======================================== */

.container {
    max-width: 70%;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

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

/* ========================================
   5. NAVIGATION
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

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

.nav-logo .logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--color-text-primary);
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-base);
    will-change: transform, opacity;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-primary);
    font-size: 1.25rem;
    padding: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.theme-toggle:hover {
    color: var(--color-primary);
}

/* ========================================
   6. SECTION HERO
   ======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: 4rem;
    margin-bottom: var(--spacing-xl);
    line-height: 1.3;
    letter-spacing: -0.02em;
    color: var(--color-primary);
    padding-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

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

.feature-item i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.feature-item span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.hero-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: all var(--transition-base);
}

.social-link:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-4px);
}

/* Hero Image */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image {
    width: 100%;
    max-width: 450px;
}

.hero-photo {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.25);
    border: 3px solid var(--color-primary);
    transition: all var(--transition-base);
    object-fit: cover;
}

.hero-photo:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(37, 99, 235, 0.3);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--color-primary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0%, 100% { top: 8px; opacity: 1; }
    50% { top: 20px; opacity: 0.5; }
}

/* ========================================
   7. SECTIONS COMMUNES
   ======================================== */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-description {
    max-width: 600px;
    margin: 0 auto;
    color: var(--color-text-secondary);
    font-size: 1.125rem;
}

/* ========================================
   8. SECTION À PROPOS
   ======================================== */

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

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
}

.about-text {
    font-size: 1.0625rem;
}

.lead-text {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    max-width: 400px;
}

.highlight-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--color-primary);
    transition: all var(--transition-base);
}

.highlight-item:hover {
    box-shadow: var(--shadow-md);
}

.highlight-item i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.highlight-item h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.highlight-item p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* Stats */
.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    justify-content: center;
    height: 100%;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    display: block;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    display: block;
    margin-top: var(--spacing-xs);
}

/* ========================================
   9. SECTION EXPÉRIENCE
   ======================================== */
.experience {
    background-color: var(--color-bg-secondary);
}

.timeline {
    position: relative;
    padding-left: var(--spacing-3xl);
}

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

.timeline-company {
    position: relative;
    padding-bottom: var(--spacing-xl);
}

.timeline-company.expanded {
    padding-bottom: var(--spacing-3xl);
}

.timeline-company:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: calc(-1 * var(--spacing-3xl) - 6px);
    top: 0;
    width: 14px;
    height: 14px;
    background-color: var(--color-primary);
    border: 3px solid var(--color-bg-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--color-bg-secondary);
    z-index: 2;
}

.timeline-company-header {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    margin-bottom: 0;
    transition: all var(--transition-base);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.timeline-company.expanded .timeline-company-header {
    margin-bottom: var(--spacing-lg);
}

.timeline-company-header:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.timeline-company-info {
    flex: 1;
}

.company-name {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.company-location {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.company-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.company-toggle i {
    font-size: 1rem;
    transition: transform var(--transition-base);
}

.timeline-company.expanded .company-toggle i {
    transform: rotate(180deg);
}

.company-toggle:hover {
    color: var(--color-primary);
}

.company-positions {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow) ease-out;
}

.timeline-company.expanded .company-positions {
    max-height: 2000px;
    transition: max-height var(--transition-slow) ease-in;
}

.timeline-position {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-primary);
    margin-bottom: var(--spacing-lg);
    margin-left: var(--spacing-xl);
    transition: all var(--transition-base);
    max-width: 99em;
}

.timeline-position:last-child {
    margin-bottom: 0;
}

.timeline-position:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(4px);
    border-color: var(--color-primary);
}

.position-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.position-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.position-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

.position-date {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.position-duration {
    color: var(--color-text-tertiary);
}

.position-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.position-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tag:hover {
    background-color: var(--color-primary);
    color: white;
}
/* ========================================
   10. SECTION COMPÉTENCES
   ======================================== */

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

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

.skill-card {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.skill-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.skill-icon {
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.skill-header h3 {
    font-size: 1.25rem;
}

.skill-item {
    margin-bottom: var(--spacing-lg);
}

.skill-item:last-child {
    margin-bottom: 0;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.skill-info span:first-child {
    font-weight: 500;
}

.skill-level {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.skill-bar {
    height: 8px;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.tool-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.tool-item:hover {
    transform: translateX(4px);
    background-color: var(--color-bg-tertiary);
}

.tool-item i {
    color: var(--color-primary);
    font-size: 1.25rem;
}

.tool-item span {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* ========================================
   11. SECTION PROJETS
   ======================================== */

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.project-card.featured {
    grid-column: span 2;
}

.project-image {
    height: 200px;
    background-color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-card.featured .project-image {
    height: 250px;
}

.project-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
}

.project-overlay i {
    font-size: 4rem;
    color: white;
    opacity: 0.9;
}

.project-content {
    padding: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.project-type {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-status {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-bg-secondary);
    color: var(--color-success);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.project-content > p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    flex: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.tech-tag {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
}

.project-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.highlight {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.highlight i {
    color: var(--color-success);
    font-size: 0.875rem;
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.project-link:hover {
    background-color: var(--color-primary);
    color: white;
}

/* ========================================
   12. SECTION CONTACT
   ======================================== */

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

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
}

.contact-card {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
}

.contact-card:last-child {
    margin-bottom: 0;
}

.contact-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.contact-details h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.contact-details a {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.contact-details a:hover {
    color: var(--color-primary);
}

/* Form */
.contact-form {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

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

.form-group textarea {
    resize: vertical;
}

/* ========================================
   13. BOUTONS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    font-size: 1rem;
}

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

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

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

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

.btn-full {
    width: 100%;
    justify-content: center;
}

/* État désactivé — avant validation Turnstile */
#submit-button:disabled {
  background-color: #9ca3af; /* gris neutre */
  color: #e5e7eb;
  cursor: not-allowed;
  opacity: 0.7;
  pointer-events: none; /* empêche tout clic résiduel */
}

/* ========================================
   14. FOOTER
   ======================================== */

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

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

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

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

.footer-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: all var(--transition-base);
}

.footer-links a:hover {
    background-color: var(--color-primary);
    color: white;
}

/* ========================================
   15. NOTIFICATIONS
   ======================================== */

.notification {
    position: fixed;
    top: 100px;
    right: var(--spacing-xl);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    animation: slideIn 0.3s ease;
}

.notification.success {
    background-color: var(--color-success);
    color: white;
}

.notification.error {
    background-color: var(--color-error);
    color: white;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ========================================
   16. RESPONSIVE
   ======================================== */

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-image {
        max-width: 380px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .project-card.featured {
        grid-column: span 1;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .hero-badge {
        margin-top: var(--spacing-xl);
    }
    
    .hero-image {
        max-width: 300px;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--color-bg-primary);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: var(--spacing-xl);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: var(--spacing-xl);
    }
    
    .timeline-dot {
        left: calc(-1 * var(--spacing-xl) - 6px);
    }
    
    .timeline-position {
        margin-left: 0;
        padding: var(--spacing-lg);
    }
    
    .position-header {
        flex-direction: column;
    }
    
    .position-title {
        font-size: 1.125rem;
    }
    
    .company-name {
        font-size: 1.25rem;
    }
    
    .timeline-company-header {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .timeline {
        padding-left: var(--spacing-md);
    }
    
    .timeline-dot {
        left: calc(-1 * var(--spacing-md) - 6px);
        width: 12px;
        height: 12px;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
}