/* ==========================================================
   VARIABLES CSS – Palette "Nature Distillée" (2025)
   ========================================================== */
:root {
 /* Couleurs principales */
  --color-primary: #A0826D;        /* Mocha Mousse – Pantone 2025 */
  --color-secondary: #B85450;      /* Terre cuite */
  --color-accent: #87A96B;         /* Vert sauge */
  --color-warm: #E8DCC6;           /* Beige chaud */
  --color-slate: #4A5568;          /* Bleu ardoise */
  --color-terracotta: #E07A5F;     /* Orange terracotta */

  /* Neutres */
  --color-white: #FEFCFB;          /* Blanc cassé */
  --color-black: #2D3748;          /* Gris charbon */
  --color-gray-light: #F7FAFC;
  --color-gray-medium: #E2E8F0;
  --color-gray-dark: #4A5568;

  /* Typographie */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-accent : 'Dancing Script', cursive;

  /* Échelles fluides de texte */
  --text-xs : clamp(0.75rem, 0.70rem + 0.25vw, 0.875rem);
  --text-sm : clamp(0.875rem, 0.80rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.90rem + 0.50vw, 1.125rem);
  --text-lg : clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl : clamp(1.25rem, 1.10rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.30rem + 1vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.60rem + 1.375vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.90rem + 1.75vw, 3rem);
  --text-5xl: clamp(3rem, 2.50rem + 2.5vw, 4rem);

  /* Espacements */
  --space-xs : 0.5rem;
  --space-sm : 0.75rem;
  --space-md : 1rem;
  --space-lg : 1.5rem;
  --space-xl : 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Ombres */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.10),
               0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.10),
               0 4px 6px -2px  rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.10),
               0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-base: 0.30s ease-out;
  --transition-slow: 0.50s ease-out;

  /* Border-radius */
  --radius-sm  : 0.375rem;
  --radius-md  : 0.5rem;
  --radius-lg  : 0.75rem;
  --radius-xl  : 1rem;
  --radius-full: 9999px;

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky  : 1020;
  --z-fixed   : 1030;
  --z-modal   : 1040;
  --z-popover : 1050;
  --z-tooltip : 1060;
}

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

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

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

/* ==========================================================
   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;
}

.skip-link {
  position: absolute; top: -40px; left: 6px; z-index: var(--z-tooltip);
  background: var(--color-primary); color: var(--color-white);
  padding: 8px; border-radius: var(--radius-md); text-decoration: none;
  transition: top var(--transition-fast);
}
.skip-link:focus { top: 6px; }

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ==========================================================
   UTILITAIRES DE MISE EN PAGE
   ========================================================== */
.container {
  max-width: 1200px; margin: 0 auto; padding: 0 var(--space-lg);
}
@media (max-width: 768px) {
  .container { padding: 0 var(--space-md); }
}

.section { padding: var(--space-4xl) 0; }
@media (max-width: 768px) {
  .section { padding: var(--space-3xl) 0; }
}

/* ==========================================================
   HEADER & NAVIGATION
   ========================================================== */
.header {
  position: relative; min-height: 100vh;
  background: linear-gradient(135deg, var(--color-warm) 0%, var(--color-gray-light) 100%);
  overflow: hidden;
}

/* Barre de navigation */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-fixed);
  background: rgba(254, 252, 251, 0.95); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-medium);
  transition: all var(--transition-base);
}
.nav-container {
  max-width: 1200px; margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  display: flex; justify-content: space-between; align-items: center;
}
.nav-brand { font-weight: 700; font-size: var(--text-xl); color: var(--color-black); }
.brand-accent { color: var(--color-primary); }

/* Bouton burger */
.nav-toggle {
  display: none; flex-direction: column; gap: 4px;
  background: none; border: none; cursor: pointer; padding: var(--space-xs);
}
.hamburger {
  width: 25px; height: 3px; background: var(--color-black);
  border-radius: var(--radius-full); transition: all var(--transition-base);
}

/* Liens */
.nav-links {
  display: flex; gap: var(--space-xl); list-style: none; align-items: center;
}
.nav-links a {
  position: relative; text-decoration: none; font-weight: 500;
  color: var(--color-black); font-size: var(--text-sm);
  padding: var(--space-xs) var(--space-sm); border-radius: var(--radius-md);
  transition: all var(--transition-base);
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 50%;
  width: 0; height: 2px; background: var(--color-primary);
  transform: translateX(-50%); transition: width var(--transition-base);
}
.nav-links a:hover::after,
.nav-links a:focus::after { width: 100%; }
.nav-links a:hover,
.nav-links a:focus {
  color: var(--color-primary);
  background: rgba(160, 130, 109, 0.10);
}

/* Navigation mobile */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: var(--space-lg);
    background: var(--color-white); padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%); opacity: 0; visibility: hidden;
    transition: all var(--transition-base);
  }
  .nav-links.active { transform: translateY(0); opacity: 1; visibility: visible; }

  .nav-toggle.active .hamburger:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
  .nav-toggle.active .hamburger:nth-child(2) { opacity: 0; }
  .nav-toggle.active .hamburger:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }
}

/* ==========================================================
   HERO
   ========================================================== */
.hero {
  display: flex; justify-content: center; align-items: center;
  min-height: 100vh; padding-top: 80px; position: relative;
}
.split-screen {
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; gap: var(--space-2xl); min-height: 60vh;
}

.side { text-align: center; position: relative; }
.hero-title {
  font-size: var(--text-5xl); font-weight: 800; line-height: 1.1;
  margin-bottom: var(--space-md);
}
.left .hero-title  { color: var(--color-terracotta); }
.right .hero-title { color: var(--color-slate); font-family: 'Courier New', monospace; }
.creative-icon { display: block; font-size: var(--text-4xl);
  margin-bottom: var(--space-sm); animation: float 3s ease-in-out infinite; }

.center-portrait { position: relative; z-index: 3; }
.portrait-image {
  width: 200px; height: 200px; object-fit: cover; border-radius: 50%;
  border: 4px solid var(--color-white); box-shadow: var(--shadow-xl);
  transition: all var(--transition-slow);
}
.portrait-image:hover { transform: scale(1.05);
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); }

.side-decoration {
  position: absolute; top: 50%; left: 50%; width: 200px; height: 200px;
  border-radius: 50%; opacity: 0.10; transform: translate(-50%, -50%);
  background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
  animation: pulse 4s ease-in-out infinite;
}

/* Indicateur de scroll */
.scroll-indicator {
  position: absolute; bottom: var(--space-2xl); left: 50%;
  transform: translateX(-50%); text-align: center; cursor: pointer;
  transition: opacity var(--transition-base);
}
.scroll-mouse {
  width: 24px; height: 40px; border: 2px solid var(--color-primary);
  border-radius: 12px; margin: 0 auto var(--space-sm); position: relative;
}
.scroll-wheel {
  width: 4px; height: 8px; background: var(--color-primary);
  border-radius: 2px; position: absolute; top: 8px; left: 50%;
  transform: translateX(-50%); animation: scroll-wheel 2s infinite;
}
.scroll-text {
  font-size: var(--text-sm); color: var(--color-primary);
  font-weight: 500; text-transform: uppercase; letter-spacing: 1px;
}

/* Responsive hero */
@media (max-width: 768px) {
  .split-screen { grid-template-columns: 1fr; gap: var(--space-xl); }
  .center-portrait { order: -1; }
  .portrait-image  { width: 150px; height: 150px; }
  .hero-title      { font-size: var(--text-3xl); }
  .side-decoration { width: 150px; height: 150px; }
}

/* ==========================================================
   SECTIONS COMMUNES (titres & sous-titres)
   ========================================================== */
.section-header { text-align: center; margin-bottom: var(--space-4xl); }
.section-title  {
  display: flex; justify-content: center; align-items: center; gap: var(--space-md);
  font-size: var(--text-4xl); font-weight: 700; color: var(--color-black);
  margin-bottom: var(--space-md);
}
.title-icon      { font-size: var(--text-3xl); }
.section-subtitle{ max-width: 600px; margin: 0 auto;
  font-size: var(--text-lg); color: var(--color-gray-dark); }

/* ==========================================================
   SECTION "À PROPOS"
   ========================================================== */
.about-section { background: var(--color-white); }
.about-content {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4xl);
  align-items: center;
}
.intro-text    { font-size: var(--text-lg); line-height: 1.7;
  margin-bottom: var(--space-xl); }

.highlight-quote {
  position: relative; font-style: italic; line-height: 1.6;
  background: linear-gradient(135deg, var(--color-warm), var(--color-gray-light));
  padding: var(--space-xl); border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-xl); font-size: var(--text-lg);
}
.highlight-quote::before {
  content: '"'; position: absolute; top: var(--space-md); left: var(--space-md);
  font-size: var(--text-4xl); font-family: serif; color: var(--color-primary);
}

.image-container {
  position: relative; overflow: hidden;
  border-radius: var(--radius-xl); box-shadow: var(--shadow-lg);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}
.image-container:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); }
.about-img { width: 100%; height: 300px; object-fit: cover; }

.image-overlay {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(160, 130, 109, 0.8), rgba(135, 169, 107, 0.8));
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity var(--transition-base);
}
.image-container:hover .image-overlay { opacity: 1; }
.overlay-text {
  color: var(--color-white); font-weight: 600; font-size: var(--text-lg);
  text-transform: uppercase; letter-spacing: 1px;
}

/* Responsive */
@media (max-width: 768px) {
  .about-content { grid-template-columns: 1fr; gap: var(--space-2xl); }
}

/* ==========================================================
   SECTION TIMELINE
   ========================================================== */
.timeline-section { background: var(--color-gray-light); }
.timeline-container { position: relative; max-width: 800px; margin: 0 auto; }
.timeline-line {
  position: absolute; top: 0; bottom: 0; left: 50%;
  width: 2px; background: var(--color-primary);
  transform: translateX(-50%);
}
.timeline-item {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  gap: var(--space-xl); margin-bottom: var(--space-3xl); position: relative;
}
.timeline-marker {
  grid-column: 2; width: 20px; height: 20px;
  background: var(--color-primary); border: 4px solid var(--color-white);
  border-radius: 50%; box-shadow: var(--shadow-md); z-index: 2;
}
.timeline-marker.current {
  background: var(--color-terracotta); animation: pulse-marker 2s infinite;
}
.timeline-content {
  background: var(--color-white); padding: var(--space-xl);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.timeline-content:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.timeline-year  {
  display: inline-block; margin-bottom: var(--space-md);
  background: var(--color-primary); color: var(--color-white);
  padding: var(--space-xs) var(--space-md); border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 600;
}
.timeline-title { font-size: var(--text-xl); font-weight: 600;
  color: var(--color-black); margin-bottom: var(--space-sm); }
.timeline-description { color: var(--color-gray-dark); line-height: 1.6; }

/* Responsive timeline */
@media (max-width: 768px) {
  .timeline-line   { left: 20px; }
  .timeline-item   { grid-template-columns: auto 1fr; gap: var(--space-lg); }
  .timeline-marker { grid-column: 1; margin-left: 11px; }
  .timeline-item:nth-child(even) .timeline-content,
  .timeline-item:nth-child(odd)  .timeline-content { grid-column: 2; text-align: left; }
}

/* ==========================================================
   SECTION COMPÉTENCES
   ========================================================== */
.skills-section { background: var(--color-white); }

/* Filtres */
.filter-container     { display: flex; justify-content: center; margin-bottom: var(--space-3xl); }
.filter-buttons       {
  display: flex; flex-wrap: wrap; gap: var(--space-sm);
  background: var(--color-gray-light); padding: var(--space-xs);
  border-radius: var(--radius-full);
}
.filter-btn {
  border: none; background: transparent; cursor: pointer; white-space: nowrap;
  font-weight: 500; font-size: var(--text-sm); color: var(--color-gray-dark);
  padding: var(--space-sm) var(--space-lg); border-radius: var(--radius-full);
  transition: all var(--transition-base);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary); color: var(--color-white); transform: translateY(-1px);
}

/* Grille de compétences */
.skills-grid {
  display: grid; gap: var(--space-xl); margin-bottom: var(--space-4xl);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.skill-card {
  position: relative; text-align: center; overflow: hidden;
  background: var(--color-white); border: 1px solid var(--color-gray-medium);
  border-radius: var(--radius-xl); padding: var(--space-xl);
  box-shadow: var(--shadow-md); transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.skill-card::before {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: left var(--transition-slow);
}
.skill-card:hover::before { left: 0; }
.skill-card:hover         { transform: translateY(-5px); box-shadow: var(--shadow-xl); }

/* Picto */
.skill-icon {
  width: 60px; height: 60px; margin: 0 auto var(--space-lg);
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-lg); color: var(--color-white); font-size: 24px;
}

/* Titres & niveaux */
.skill-name  { font-size: var(--text-xl); font-weight: 600; color: var(--color-black);
  margin-bottom: var(--space-sm); }
.skill-level { margin-bottom: var(--space-md); }
.stars { color: var(--color-primary); font-size: var(--text-lg); }
.skill-description { color: var(--color-gray-dark); line-height: 1.5; }

/* Filtrage animé */
.skill-card.hidden  { opacity: 0; transform: scale(0.8); pointer-events: none; }
.skill-card.visible { opacity: 1; transform: scale(1);   pointer-events: auto; }

/* Soft-skills */
.soft-skills-section { text-align: center; }
.soft-skills-title   {
  display: flex; justify-content: center; align-items: center; gap: var(--space-md);
  font-size: var(--text-2xl); font-weight: 600; color: var(--color-black);
  margin-bottom: var(--space-xl);
}
.soft-skills-grid   {
  display: flex; flex-wrap: wrap; gap: var(--space-lg); justify-content: center;
}
.soft-skill-badge {
  display: flex; align-items: center; gap: var(--space-sm); cursor: default;
  font-weight: 600; font-size: var(--text-sm); border-radius: var(--radius-full);
  padding: var(--space-md) var(--space-lg); transition: transform var(--transition-base);
}
.soft-skill-badge:hover { transform: translateY(-2px) scale(1.05); }

/* Couleurs dégradées */
.soft-skill-badge.creativity    { background: linear-gradient(135deg, #FFE066, #FF6B6B);  color: var(--color-white); }
.soft-skill-badge.determination { background: linear-gradient(135deg, #FF6B6B, #FF8E53);  color: var(--color-white); }
.soft-skill-badge.curiosity     { background: linear-gradient(135deg, #4ECDC4, #44A08D);  color: var(--color-white); }
.soft-skill-badge.rigor         { background: linear-gradient(135deg, #A8EDEA, #FED6E3);  color: var(--color-black); }

/* Responsive grid */
@media (max-width: 768px) {
  .filter-buttons   { justify-content: center; }
  .skills-grid      { grid-template-columns: 1fr; }
  .soft-skills-grid { flex-direction: column; align-items: center; }
}

/* ==========================================================
   SECTION PORTFOLIO - AFFICHAGE HORIZONTAL
   ========================================================== */
.portfolio-section { background: var(--color-gray-light); }

.portfolio-container {
  position: relative; max-width: 100%; margin: 0 auto;
}

.portfolio-scroll {
  display: flex; gap: var(--space-2xl); padding: var(--space-lg) 0;
  overflow-x: auto; scroll-behavior: smooth; scroll-snap-type: x mandatory;
  scrollbar-width: none; -ms-overflow-style: none;
}
.portfolio-scroll::-webkit-scrollbar { display: none; }

.project-card {
  flex: 0 0 350px; scroll-snap-align: center;
  background: var(--color-white); border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg); overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}
.project-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.project-image-container {
  position: relative; height: 200px; overflow: hidden;
}
.project-img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--transition-slow);
}
.project-card:hover .project-img {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, 
    rgba(160, 130, 109, 0.9), 
    rgba(135, 169, 107, 0.9)
  );
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity var(--transition-base);
  padding: var(--space-lg);
}
.project-card:hover .project-overlay { opacity: 1; }

.project-overlay-content { text-align: center; color: var(--color-white); }
.project-overlay-title {
  font-size: var(--text-xl); font-weight: 700; margin-bottom: var(--space-sm);
}
.project-overlay-desc {
  font-size: var(--text-sm); line-height: 1.5; opacity: 0.95;
}

.project-content {
  padding: var(--space-xl);
}

.project-title {
  font-size: var(--text-xl); font-weight: 600; color: var(--color-black);
  margin-bottom: var(--space-sm);
}

.project-desc {
  color: var(--color-gray-dark); line-height: 1.6; margin-bottom: var(--space-lg);
  font-size: var(--text-sm);
}

.project-tags {
  display: flex; flex-wrap: wrap; gap: var(--space-xs);
  margin-bottom: var(--space-lg); list-style: none;
}

.tag {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-white); padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full); font-size: var(--text-xs);
  font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px;
}

.project-link {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  color: var(--color-primary); text-decoration: none; font-weight: 600;
  font-size: var(--text-sm); transition: all var(--transition-base);
  padding: var(--space-sm) var(--space-md); border-radius: var(--radius-md);
  border: 2px solid var(--color-primary);
}
.project-link:hover {
  background: var(--color-primary); color: var(--color-white);
  transform: translateY(-2px);
}

/* Navigation du portfolio */
.portfolio-nav {
  display: flex; justify-content: center; align-items: center;
  gap: var(--space-lg); margin-top: var(--space-xl);
}

.nav-btn {
  width: 40px; height: 40px; border: 2px solid var(--color-primary);
  background: var(--color-white); border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary); transition: all var(--transition-base);
}
.nav-btn:hover:not(:disabled) {
  background: var(--color-primary); color: var(--color-white);
  transform: scale(1.1);
}
.nav-btn:disabled {
  opacity: 0.5; cursor: not-allowed;
}

.nav-dots {
  display: flex; gap: var(--space-sm);
}

.nav-dot {
  width: 12px; height: 12px; border-radius: 50%; border: none;
  background: var(--color-gray-medium); cursor: pointer;
  transition: all var(--transition-base);
}
.nav-dot.active,
.nav-dot:hover {
  background: var(--color-primary); transform: scale(1.2);
}

/* Responsive portfolio */
@media (max-width: 768px) {
  .project-card { flex: 0 0 280px; }
  .portfolio-scroll { gap: var(--space-lg); }
  .project-content { padding: var(--space-lg); }
}

@media (max-width: 480px) {
  .project-card { flex: 0 0 250px; }
  .portfolio-scroll { padding: var(--space-md) 0; }
}

/* ==========================================================
   SECTION CITATION
   ========================================================== */
.quote-section {
  text-align: center; color: var(--color-white);
  background: linear-gradient(135deg, var(--color-slate), var(--color-black));
}
.main-quote {
  position: relative; font-style: italic; line-height: 1.6;
  font-size: var(--text-2xl); margin-bottom: var(--space-3xl);
}
.main-quote::before,
.main-quote::after {
  content: '"'; font-family: serif; font-size: var(--text-4xl);
  color: var(--color-primary);
}
.quote-author {
  display: flex; justify-content: center; align-items: center;
  gap: var(--space-lg);
}
.avatar {
  width: 80px; height: 80px; border-radius: 50%; object-fit: cover;
  border: 3px solid var(--color-primary); animation: float 3s ease-in-out infinite;
}
.author-info { text-align: left; }
.author-name  { display: block; font-size: var(--text-lg);
  font-weight: 600; color: var(--color-primary); margin-bottom: var(--space-xs); }
.author-title { font-size: var(--text-sm); color: var(--color-gray-medium); }

@media (max-width: 768px) {
  .main-quote    { font-size: var(--text-xl); }
  .quote-author  { flex-direction: column; text-align: center; }
  .author-info   { text-align: center; }
}

/* ==========================================================
   SECTION CONTACT
   ========================================================== */
.contact-section { background: var(--color-white); text-align: center; }
.contact-content { max-width: 600px; margin: 0 auto; }
.github-button {
  display: inline-flex; gap: var(--space-md); align-items: center;
  padding: var(--space-lg) var(--space-2xl); margin-bottom: var(--space-xl);
  font-weight: 600; font-size: var(--text-lg); text-decoration: none;
  color: var(--color-white); border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-black), var(--color-slate));
  box-shadow: var(--shadow-lg); transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.github-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
  background: linear-gradient(135deg, var(--color-slate), var(--color-primary));
}
.contact-text {
  color: var(--color-gray-dark); font-size: var(--text-lg);
}

/* ==========================================================
   FOOTER
   ========================================================== */
.footer {
  background: var(--color-black); color: var(--color-white);
  padding: var(--space-xl) 0;
}
.footer-content {
  display: flex; flex-wrap: wrap; gap: var(--space-lg);
  justify-content: space-between; align-items: center;
}
.footer-text  { font-size: var(--text-sm); color: var(--color-gray-medium); }
.footer-links { display: flex; gap: var(--space-lg); }
.footer-links a {
  font-size: var(--text-sm); text-decoration: none;
  color: var(--color-gray-medium); transition: color var(--transition-base);
}
.footer-links a:hover { color: var(--color-primary); }
@media (max-width: 768px) {
  .footer-content { flex-direction: column; text-align: center; }
}

/* ==========================================================
   ANIMATIONS
   ========================================================== */
@keyframes float       { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
@keyframes pulse       {
  0%,100%{transform:translate(-50%, -50%) scale(1);   opacity:.10;}
  50%    {transform:translate(-50%, -50%) scale(1.1); opacity:.20;}
}
@keyframes scroll-wheel{
  0%{opacity:1; transform:translateX(-50%) translateY(0);}
  100%{opacity:0; transform:translateX(-50%) translateY(16px);}
}
@keyframes pulse-marker{ 0%,100%{transform:scale(1);} 50%{transform:scale(1.2);} }

/* ==========================================================
   AOS (Animate On Scroll)
   ========================================================== */
[data-aos] {
  opacity: 0;
  transition-property: opacity, transform;
  transition-duration: 0.6s; transition-timing-function: ease-out;
}
[data-aos].aos-animate { opacity: 1; transform: none; }
[data-aos="fade-up"]    { transform: translateY(30px); }
[data-aos="fade-right"] { transform: translateX(-30px); }
[data-aos="fade-left"]  { transform: translateX( 30px); }
[data-aos="zoom-in"]    { transform: scale(0.8); }

/* ==========================================================
   RESPONSIVE < 480 px
   ========================================================== */
@media (max-width: 480px) {
  :root {
    --space-xs: 0.25rem; --space-sm: 0.5rem; --space-md: 0.75rem;
    --space-lg: 1rem;    --space-xl: 1.5rem; --space-2xl: 2rem;
    --space-3xl: 2.5rem; --space-4xl: 3rem;
  }
  .container     { padding: 0 var(--space-sm); }
  .section-title { flex-direction: column; gap: var(--space-sm); }
  .github-button { padding: var(--space-md) var(--space-xl);
                   font-size: var(--text-base); }
}

/* ==========================================================
   IMPRESSION
   ========================================================== */
@media print {
  .navbar, .scroll-indicator, .nav-toggle, .portfolio-nav { display: none; }
  .section { padding: var(--space-lg) 0; break-inside: avoid; }
  .hero    { min-height: auto; padding: var(--space-xl) 0; }
  body     { font-size: 12pt; line-height: 1.4; color: #000; background: #fff; }
  .portfolio-scroll { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: var(--space-lg); overflow: visible; }
}

/* ==========================================================
   DARK MODE (préférences système)
   ========================================================== */
@media (prefers-color-scheme: dark) {
  :root {
    --color-white     : #1A202C;
    --color-black     : #F7FAFC;
    --color-gray-light: #2D3748;
    --color-gray-medium: #4A5568;
    --color-gray-dark : #E2E8F0;
  }
  body        { background: var(--color-white); color: var(--color-black); }
  .navbar     { background: rgba(26, 32, 44, 0.95);
                border-bottom-color: var(--color-gray-medium); }
  .skill-card,
  .timeline-content,
  .project-card { background: var(--color-gray-light);
                  border-color: var(--color-gray-medium); }
}