/* ===== VARIABLES CSS ===== */
:root {
  /* Couleurs principales */
  --primary-color: #00d4ff;
  --secondary-color: #0099cc;
  --accent-color: #00ff88;
  --success-color: #00ff88;
  --warning-color: #ffaa00;
  --error-color: #ff3366;
  
  /* Couleurs de fond */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #1a1a1a;
  --bg-hover: #222222;
  
  /* Couleurs de texte */
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  
  /* Polices */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  
  /* Espacements */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;
  
  /* Rayons de bordure */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  
  /* Ombres */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 0.2s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
  
  /* Tailles de conteneur */
  --container-max-width: 1200px;
  --section-padding: 5rem 0;
  
  /* Breakpoints */
  --mobile: 480px;
  --tablet: 768px;
  --desktop: 1024px;
  --wide: 1440px;
}

/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== UTILITAIRES ===== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
}

.section {
  padding: var(--section-padding);
  position: relative;
  will-change: transform;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.95);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 1000;
  transition: var(--transition-normal);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
  gap: var(--spacing-lg);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  height: 100%;
}

.logo-text {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-mono);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-sm);
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-item {
  display: flex;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
  background: rgba(0, 212, 255, 0.1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  transition: var(--transition-fast);
  border-radius: 2px;
}

/* Navigation mobile */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(10, 10, 10, 0.98);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--spacing-lg);
    transition: var(--transition-normal);
  }

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

  .nav-item {
    margin: var(--spacing-xs) 0;
  }

  .nav-link {
    font-size: 1.1rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }

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

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

/* ===== SECTION HERO ===== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 255, 136, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-lg);
  }
}

.hero-name {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  margin-bottom: var(--spacing-md);
  height: 2.5rem;
  color: var(--primary-color);
  font-family: var(--font-mono);
}

.typing-text {
  border-right: 2px solid var(--primary-color);
}

.cursor {
  animation: blink 1s infinite;
  color: var(--primary-color);
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
}

/* ===== BOUTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: var(--transition-normal);
}

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

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

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

.btn-secondary {
  background: linear-gradient(135deg, var(--accent-color), #00cc77);
  color: var(--bg-primary);
  box-shadow: var(--shadow-md);
}

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

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

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

/* ===== CARTE PROFIL ===== */
.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

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

.profile-image {
  position: relative;
  margin-bottom: var(--spacing-md);
}

.avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--bg-primary);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.profile-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.status-indicator {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 20px;
  height: 20px;
  background: var(--success-color);
  border-radius: 50%;
  border: 3px solid var(--bg-card);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 255, 136, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(0, 255, 136, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 255, 136, 0); }
}

.profile-info h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  font-size: 1.2rem;
}

.profile-info p {
  color: var(--success-color);
  font-size: 0.9rem;
}

/* ===== INDICATEUR DE SCROLL ===== */
.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-arrow {
  color: var(--primary-color);
  font-size: 1.5rem;
}

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

/* ===== ANIMATIONS D'APPARITION ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in-delay-1 {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.fade-in-delay-2 {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease-out 0.4s forwards;
}

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

/* Animation Observer */
[data-aos] {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-slow);
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

/* ===== SECTION CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

.contact-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.05), transparent);
  transition: var(--transition-slow);
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.contact-card:hover::before {
  left: 100%;
}

.contact-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
  color: var(--bg-primary);
}

.contact-info h3 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

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

.contact-info a:hover {
  color: var(--accent-color);
}

.contact-info p {
  color: var(--text-secondary);
}

/* ===== SECTION COMPÉTENCES ===== */
.skills-container {
  display: grid;
  gap: var(--spacing-lg);
}

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

@media (max-width: 768px) {
  .skills-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}

.skill-category {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.skill-category h3 {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary-color);
}

/* ===== DESIGN UNIFIÉ POUR TOUTES LES COMPÉTENCES ===== */
.skills-unified-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-sm);
}

.skill-item-unified {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.skill-item-unified::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
  transition: var(--transition-slow);
}

.skill-item-unified:hover {
  background: var(--bg-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.15);
  border-color: var(--primary-color);
}

.skill-item-unified:hover::before {
  left: 100%;
}

.skill-icon-unified {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 1.4rem;
  background: rgba(0, 212, 255, 0.1);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.skill-item-unified:hover .skill-icon-unified {
  background: var(--primary-color);
  color: var(--bg-primary);
  transform: scale(1.1);
}

.skill-name-unified {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
  flex: 1;
}

/* Responsive pour mobile */
@media (max-width: 768px) {
  .skills-unified-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }
  
  .skill-item-unified {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .skill-icon-unified {
    width: 28px;
    height: 28px;
    font-size: 1.2rem;
  }
  
  .skill-name-unified {
    font-size: 0.9rem;
  }
}






/* ===== SECTION EXPÉRIENCE ===== */
.timeline {
  position: relative;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
  transform: translateX(-50%);
}

@media (max-width: 768px) {
  .timeline::before {
    left: 30px;
  }
}

.timeline-item {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

@media (max-width: 768px) {
  .timeline-item,
  .timeline-item:nth-child(even) {
    flex-direction: row;
    padding-left: 80px;
  }
}

.timeline-marker {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

@media (max-width: 768px) {
  .timeline-marker {
    left: 30px;
  }
}

.timeline-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-primary);
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
}

.timeline-content {
  background: var(--bg-card);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  width: calc(50% - 40px);
  position: relative;
  transition: var(--transition-normal);
}

@media (max-width: 768px) {
  .timeline-content {
    width: calc(100% - 80px);
  }
}

.timeline-content:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.timeline-content::before {
  content: '';
  position: absolute;
  top: 30px;
  width: 0;
  height: 0;
  border: 15px solid transparent;
}

.timeline-item:nth-child(odd) .timeline-content::before {
  right: -30px;
  border-left-color: var(--bg-card);
}

.timeline-item:nth-child(even) .timeline-content::before {
  left: -30px;
  border-right-color: var(--bg-card);
}

@media (max-width: 768px) {
  .timeline-content::before,
  .timeline-item:nth-child(even) .timeline-content::before {
    left: -30px;
    border-right-color: var(--bg-card);
    border-left-color: transparent;
  }
}

.timeline-header {
  margin-bottom: var(--spacing-md);
}

.timeline-header h3 {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.company {
  color: var(--primary-color);
  font-weight: 500;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.period {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-family: var(--font-mono);
}

.timeline-body ul {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.timeline-body li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

.timeline-body li i {
  color: var(--accent-color);
  margin-top: 2px;
  flex-shrink: 0;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.tech-tag {
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.tech-tag.aws {
  background: linear-gradient(135deg, #ff9900, #ffaa00);
  color: var(--bg-primary);
}

/* ===== SECTION FORMATION ===== */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.education-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.education-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.education-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
  color: var(--bg-primary);
}

.education-content h3 {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.institution {
  color: var(--primary-color);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.period {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-family: var(--font-mono);
  margin-bottom: var(--spacing-sm);
}

.education-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===== SECTION LANGUES ===== */
.languages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

.language-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  transition: var(--transition-normal);
  will-change: transform;
}

.language-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}


.language-card h3 {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.language-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.language-level {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.level-bars {
  display: flex;
  gap: 4px;
}

.level-bar {
  width: 20px;
  height: 8px;
  background: var(--bg-secondary);
  border-radius: 4px;
  transition: var(--transition-normal);
}

.level-bar.active {
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.level-text {
  color: var(--primary-color);
  font-family: var(--font-mono);
  font-weight: 500;
}


/* ===== SECTION CENTRES D'INTÉRÊT ===== */
.interests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.interest-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.interest-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.05), transparent);
  transition: var(--transition-slow);
}

.interest-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.interest-card:hover::before {
  left: 100%;
}

.interest-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 1.5rem;
  color: var(--bg-primary);
}

.interest-content h3 {
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.interest-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .interests-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}


/* ===== FOOTER ===== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-lg) 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

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

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

.footer-links a {
  color: var(--text-muted);
  font-size: 1.2rem;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary-color);
  transform: translateY(-2px);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 480px) {
  :root {
    --section-padding: 3rem 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-name {
    font-size: 2.5rem;
  }
  
  .hero-title {
    font-size: 1.2rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .contact-grid,
  .education-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline-content {
    padding: var(--spacing-md);
  }
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.btn,
.contact-card,
.education-card {
  will-change: transform;
}

/* Réduction des animations sur les appareils à faible performance */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== ACCESSIBILITÉ ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus visible pour la navigation au clavier */
*:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Amélioration du contraste pour l'accessibilité */
@media (prefers-contrast: high) {
  :root {
    --text-secondary: #ffffff;
    --text-muted: #cccccc;
  }
}