/* ════════════════════════════════════════════════════════════════
   DYLAN HOLIN — PORTFOLIO — DESIGN MODERNE PROFESSIONNEL v2
   Style: Clean Tech Corporate Dark
   ════════════════════════════════════════════════════════════════ */

/* ===== VARIABLES ===== */
:root {
  /* Palette principale */
  --bg-primary:    #060b18;
  --bg-secondary:  #0d1526;
  --bg-tertiary:   #132039;
  --surface:       rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.07);

  /* Couleurs d'accent */
  --primary:       #4f90f7;
  --primary-dark:  #3a7af5;
  --primary-light: #7ab0fb;
  --primary-glow:  rgba(79, 144, 247, 0.2);
  --secondary:     #a78bfa;
  --accent:        #34d399;
  --accent-glow:   rgba(52, 211, 153, 0.15);

  /* Texte */
  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;

  /* Bordures */
  --border:        rgba(255, 255, 255, 0.08);
  --border-hover:  rgba(255, 255, 255, 0.16);
  --border-accent: rgba(79, 144, 247, 0.35);

  /* Ombres */
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.55);

  /* Espacements */
  --space-xs:  0.375rem;
  --space-sm:  0.625rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;

  /* Typographie - Polices système RGPD friendly */
  --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body:    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;

  /* Mise en page */
  --container-max: 1120px;
  --nav-height:    52px;

  /* Rayons */
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-full: 100px;

  /* Mise en page spécifique */
  --timeline-offset: 148px;
  --bg-modal: #0d1321;
}

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

/* Styles pour les exposants */
sup {
  font-size: 0.6em;
  vertical-align: super;
  line-height: 0;
  margin-left: -0.2em;
  margin-right: -0.1em;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Fond dégradé ambiant fixe */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% -5%,  rgba(79, 144, 247, 0.1)  0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 105%, rgba(167, 139, 250, 0.07) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

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

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== SKIP LINK ===== */
.skip-link {
  position: absolute;
  top: -50px;
  left: 10px;
  background: var(--primary);
  color: white;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: 10px; }

/* ===== NAVIGATION ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(10, 15, 28, 0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header.scrolled {
  background: rgba(10, 15, 28, 0.92);
  border-bottom-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.3);
}

.nav-principale {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0;
  letter-spacing: -0.02em;
  transition: color 0.2s, opacity 0.2s;
  opacity: 0.9;
}
.nav-logo .bracket { color: var(--primary); font-weight: 400; }
.nav-logo .logo-accent {
  color: var(--primary);
  animation: blink-cursor 1.2s step-end infinite;
}
@keyframes blink-cursor {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}
.nav-logo:hover { color: var(--primary); opacity: 1; }

/* Liens nav */
.nav-liens {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 0.15rem;
}

.nav-liens a {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.nav-liens a:hover { 
  color: var(--text-primary); 
  background: rgba(255, 255, 255, 0.06); 
}
.nav-liens a:focus { 
  color: var(--text-primary); 
  background: rgba(255, 255, 255, 0.06); 
  outline: 1px solid var(--primary);
  outline-offset: 1px;
}
.nav-liens a.active { 
  color: var(--primary); 
  background: rgba(79, 144, 247, 0.1);
}

.nav-principale .nav-liens .nav-cta {
  background: var(--primary);
  color: var(--bg-primary);
  font-weight: 600;
  font-size: 0.78rem;
  padding: 0.4rem 0.9rem;
  margin-left: 0.3rem;
}
.nav-principale .nav-liens .nav-cta:hover {
  background: var(--primary-light);
  color: var(--bg-primary);
  transform: translateY(-1px);
  box-shadow: 0 3px 12px var(--primary-glow);
}

/* Bouton menu mobile */
.nav-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 6px;
}
.nav-menu-btn span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===== HERO ===== */
#pixel-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl) var(--space-3xl);
  z-index: 1;
}

/* Orbes lumineux animés */
.hero::before {
  content: '';
  position: absolute;
  width: 700px;
  height: 700px;
  top: -120px;
  right: -200px;
  background: radial-gradient(circle, rgba(79, 144, 247, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float-orb 9s ease-in-out infinite;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  bottom: -60px;
  left: -120px;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float-orb 12s ease-in-out infinite reverse;
  pointer-events: none;
}

@keyframes float-orb {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-40px) scale(1.06); }
}

.hero-contenu {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0.5rem;
}

/* Badge disponibilité */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(52, 211, 153, 0.08);
  color: var(--accent);
  border: 1px solid rgba(52, 211, 153, 0.25);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: var(--space-xl);
  letter-spacing: 0.01em;
}
.hero-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(1.4); }
}

/* Titre principal avec dégradé */
.hero-titre {
  font-size: clamp(3.2rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-lg);
  background: linear-gradient(140deg, var(--text-primary) 0%, var(--primary-light) 55%, var(--secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  padding-bottom: 0.5rem;
  display: inline-block;
}

/* Sous-titre style terminal */
.hero-sous-titre {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: var(--space-xl);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.hero-sous-titre::before {
  content: '~/dev$';
  color: var(--primary);
  font-weight: 600;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
  text-align: center;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
  justify-content: center;
}

/* ===== BOUTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.72rem 1.5rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.25s;
  border: 2px solid transparent;
  letter-spacing: 0.01em;
  text-decoration: none;
}
.btn-primaire {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 18px var(--primary-glow);
}
.btn-primaire:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(79, 144, 247, 0.35);
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
}
.btn-primaire:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn-secondaire {
  background: transparent;
  color: var(--primary);
  border-color: var(--border-accent);
}
.btn-secondaire:hover {
  background: var(--primary-glow);
  border-color: var(--primary);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-outline:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--surface);
}
.btn-lg { padding: 0.9rem 2rem; font-size: 1rem; }

/* Liens sociaux hero */
.hero-liens-sociaux {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
}
.lien-social {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.2s;
  background: var(--surface);
}
.lien-social svg { flex-shrink: 0; }
.lien-social:hover {
  color: var(--primary);
  border-color: var(--border-accent);
  background: var(--primary-glow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* Indicateur de scroll */
.hero-scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.scroll-dot {
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: scroll-bounce 2s ease-in-out infinite;
}
@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50%       { transform: translateY(8px); opacity: 1; }
}

/* ===== SECTIONS ===== */
.section {
  padding: var(--space-3xl) var(--space-xl);
  position: relative;
  z-index: 1;
  scroll-margin-top: var(--nav-height);
}
.section-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}
.section-header {
  margin-bottom: var(--space-2xl);
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 0.5rem;
  display: none; /* Cacher complètement les index */
}
.section-titre {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  line-height: 1.15;
  position: relative;
}
.titre-index { display: none; }
.section-titre::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 3px;
  margin-top: 0.8rem;
}

/* ===== ANIMATIONS AU DÉFILEMENT ===== */
[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}
[data-animate-delay="1"] { transition-delay: 0.08s; }
[data-animate-delay="2"] { transition-delay: 0.18s; }
[data-animate-delay="3"] { transition-delay: 0.28s; }
[data-animate-delay="4"] { transition-delay: 0.38s; }
[data-animate-delay="5"] { transition-delay: 0.48s; }

/* ===== SECTION À PROPOS COMPACTE ===== */
#a-propos.section {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

#a-propos .section-header {
  margin-bottom: 1.5rem;
}

/* ===== À PROPOS ===== */
.apropos-contenu {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.5rem 2rem;
  max-width: 820px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}
.apropos-contenu::before {
  content: '"';
  position: absolute;
  top: -30px;
  right: var(--space-xl);
  font-size: 12rem;
  color: var(--primary);
  opacity: 0.03;
  font-family: Georgia, serif;
  line-height: 1;
  pointer-events: none;
}
.apropos-contenu p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0.625rem;
  font-size: 0.9rem;
}
.apropos-contenu p:last-child { margin-bottom: 0; }
.apropos-contenu strong { color: var(--primary); font-weight: 600; }

/* ===== COMPÉTENCES ===== */
.competences-grille {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}
.competence-carte {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}
/* Bordure top gradient au hover */
.competence-carte::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity 0.3s;
}
.competence-carte:hover {
  border-color: var(--border-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  background: var(--surface-hover);
}
.competence-carte:hover::before { opacity: 1; }

.competence-categorie {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-heading);
}
.cat-icon {
  width: 30px;
  height: 30px;
  background: var(--primary-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.competence-liste {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 500;
  font-family: var(--font-body);
  transition: all 0.2s;
  cursor: pointer;
  letter-spacing: 0.01em;
}
.badge:hover {
  background: rgba(79, 144, 247, 0.14);
  border-color: rgba(79, 144, 247, 0.35);
  color: var(--text-primary);
  transform: translateY(-1px);
}
.badge-sm { font-size: 0.72rem; padding: 0.22rem 0.6rem; }

/* ===== PROJETS ===== */
.projet-placeholder {
  text-align: center;
  color: var(--text-muted);
  padding: var(--space-xl) 0;
}

.projets-grille {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-xl);
}
.projet-carte {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  position: relative;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
/* Lueur en bas au hover */
.projet-carte::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 0;
  background: linear-gradient(to top, rgba(79, 144, 247, 0.06), transparent);
  transition: height 0.4s;
}
.projet-carte:hover {
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(79, 144, 247, 0.1);
}
.projet-carte:hover::after { height: 80px; }

.projet-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}
.projet-titre {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-heading);
  line-height: 1.3;
}
.projet-liens {
  display: flex;
  gap: var(--space-xs);
  flex-shrink: 0;
}
.projet-lien {
  font-size: 0.74rem;
  color: var(--primary);
  border: 1px solid var(--border-accent);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  font-weight: 500;
  white-space: nowrap;
  font-family: var(--font-mono);
}
.projet-lien:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.projet-objectif,
.projet-realisation,
.projet-resultat {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.projet-objectif strong,
.projet-realisation strong,
.projet-resultat strong {
  color: var(--primary);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.3rem;
  font-family: var(--font-mono);
  font-weight: 600;
}
.projet-stack {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: var(--space-md);
  position: relative;
  z-index: 1;
}

/* ===== TIMELINE FORMATION / EXPÉRIENCES ===== */
.formation-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}
/* Ligne verticale centrale */
.formation-timeline::before {
  content: '';
  position: absolute;
  left: var(--timeline-offset);
  top: 28px;
  bottom: 28px;
  width: 1px;
  background: linear-gradient(to bottom, var(--border-accent), var(--border) 70%, transparent);
  pointer-events: none;
}

.formation-carte {
  display: grid;
  grid-template-columns: var(--timeline-offset) 1fr;
  gap: 0 var(--space-2xl);
  position: relative;
  align-items: start;
  padding-bottom: var(--space-xl);
}
.formation-carte:last-child { padding-bottom: 0; }

/* Point sur la timeline */
.formation-carte::after {
  content: '';
  position: absolute;
  left: var(--timeline-offset);
  top: 26px;
  width: 10px;
  height: 10px;
  background: var(--primary);
  border-radius: 50%;
  transform: translate(-50%, 0);
  box-shadow: 0 0 0 3px var(--bg-primary), 0 0 0 4px var(--border-accent);
  z-index: 1;
  transition: all 0.3s;
}
.formation-carte:hover::after {
  background: var(--primary-light);
  box-shadow: 0 0 0 3px var(--bg-primary), 0 0 0 5px var(--border-accent), 0 0 12px var(--primary-glow);
}
/* Point spécial pour la formation en cours */
.formation-actuelle::after {
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--bg-primary), 0 0 0 4px rgba(52, 211, 153, 0.4);
  animation: pulse-timeline 2.2s ease-in-out infinite;
}
@keyframes pulse-timeline {
  0%, 100% { box-shadow: 0 0 0 3px var(--bg-primary), 0 0 0 4px rgba(52, 211, 153, 0.3); }
  50%       { box-shadow: 0 0 0 3px var(--bg-primary), 0 0 0 8px rgba(52, 211, 153, 0.1); }
}

/* Date */
.formation-periode {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  padding-top: 1.55rem;
  text-align: right;
  padding-right: var(--space-xl);
  line-height: 1.5;
}
.formation-actuelle .formation-periode { color: var(--accent); }

/* Carte contenu */
.formation-details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: all 0.3s;
  backdrop-filter: blur(10px);
}
.formation-carte:hover .formation-details {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}
.formation-actuelle .formation-details {
  border-color: rgba(52, 211, 153, 0.2);
}
.formation-actuelle:hover .formation-details {
  border-color: rgba(52, 211, 153, 0.35);
}

.formation-diplome {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
  font-family: var(--font-heading);
}
.formation-lieu {
  font-size: 0.82rem;
  color: var(--primary);
  margin-bottom: 0.3rem;
  font-weight: 500;
}
.formation-niveau {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
}
.formation-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.formation-desc:last-child { margin-bottom: 0; }

.formation-activites {
  list-style: none;
  margin-bottom: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.formation-activites li {
  color: var(--text-secondary);
  font-size: 0.875rem;
  padding-left: 1.3rem;
  position: relative;
  line-height: 1.55;
}
.formation-activites li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 0.72rem;
  top: 0.15em;
}

/* Badge statut */
.formation-statut {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(52, 211, 153, 0.08);
  color: var(--accent);
  border: 1px solid rgba(52, 211, 153, 0.25);
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
}
.formation-statut::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse-dot 2s ease-in-out infinite;
}

.formation-secondaire { opacity: 0.6; }
.formation-secondaire:hover { opacity: 1; }

.contact-sociaux {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== CONTACT ===== */
.section-contact {
  background: linear-gradient(160deg, rgba(13, 21, 38, 0.9) 0%, rgba(19, 32, 57, 0.8) 100%);
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.section-contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 25% 60%, rgba(79, 144, 247, 0.12) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 40%, rgba(167, 139, 250, 0.08) 0%, transparent 55%);
  pointer-events: none;
}
.contact-container {
  max-width: 680px;
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
  position: relative;
  z-index: 1;
}
.section-contact .section-titre {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.035em;
}
.section-contact .section-titre::after { margin: 0.8rem auto 0; }
.contact-intro { margin-bottom: var(--space-2xl); }
.contact-intro p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
}
.contact-email { margin-top: var(--space-xl); }

/* Bouton email */
.btn-email {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border-accent);
  padding: 1rem 2.2rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  box-shadow: var(--shadow-md);
  font-family: var(--font-body);
  position: relative;
  overflow: hidden;
}
.btn-email::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(79, 144, 247, 0.1), rgba(167, 139, 250, 0.08));
  opacity: 0;
  transition: opacity 0.3s;
}
.btn-email:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg), 0 0 24px var(--primary-glow);
  color: var(--text-primary);
}
.btn-email:hover::before { opacity: 1; }
.btn-email svg, .btn-email span { position: relative; z-index: 1; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-xl);
  text-align: center;
  position: relative;
  z-index: 1;
}
.footer-inner p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}
.footer-mention {
  font-family: var(--font-mono);
  color: var(--primary) !important;
  font-size: 0.78rem !important;
}
.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}
.footer-link {
  color: var(--text-muted);
  font-size: 0.82rem;
  transition: color 0.2s;
}
.footer-link:hover { color: var(--primary); }
.footer-separator { color: var(--border); }

/* ===== MODALES ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 9998;
}
.modal-content {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-modal);
  border: 1px solid rgba(79, 144, 247, 0.3);
  border-radius: 12px;
  padding: 2rem;
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  z-index: 9999;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}
.modal-content h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
  font-family: var(--font-heading);
  font-size: 1.25rem;
}
.modal-content p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
}
.modal-content strong { color: var(--text-primary); }
.modal-content.modal-visible { display: block; }
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}
.modal-close:hover {
  color: var(--text-primary);
  background: var(--surface);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-accent); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ===== ACCESSIBILITÉ ===== */
a:focus-visible, .btn:focus-visible, .btn-email:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@keyframes nav-slide-down {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  :root {
    --space-3xl: 3.5rem;
    --space-2xl: 2.5rem;
  }

  .nav-liens { display: none; }

  /* Bouton hamburger — touch target 44px */
  .nav-menu-btn {
    display: flex;
    width: 44px;
    height: 44px;
  }

  /* Hamburger → X quand le menu est ouvert */
  [aria-expanded="true"].nav-menu-btn span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  [aria-expanded="true"].nav-menu-btn span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  [aria-expanded="true"].nav-menu-btn span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  /* Menu ouvert — espacement, profondeur, animation */
  .nav-liens.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(6, 11, 24, 0.98);
    backdrop-filter: blur(24px);
    padding: var(--space-lg) var(--space-xl) var(--space-xl);
    border-bottom: 1px solid var(--border-accent);
    gap: var(--space-md);
    z-index: 99;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
    animation: nav-slide-down 0.22s ease-out;
  }

  /* Liens — touch targets 48px + séparation visuelle */
  .nav-liens.open a {
    width: 100%;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--surface);
    font-size: 1rem;
    text-align: center;
  }
  .nav-liens.open a:hover {
    background: rgba(79, 144, 247, 0.08);
    border-color: var(--border-accent);
    color: var(--text-primary);
  }

  /* État actif visible dans le menu mobile */
  .nav-liens.open a.active {
    background: rgba(79, 144, 247, 0.1);
    border-color: var(--border-accent);
    color: var(--primary);
  }

  /* Bouton CTA Contact — taille cohérente, séparé visuellement */
  .nav-principale .nav-liens.open .nav-cta {
    width: 100%;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    padding: 0.875rem 1.5rem;
    margin-left: 0;
    margin-top: var(--space-xs);
  }

  .section { padding: var(--space-2xl) var(--space-md); }
  .hero { padding: calc(var(--nav-height) + var(--space-xl)) var(--space-md) var(--space-2xl); }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    max-width: 340px;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions .btn { justify-content: center; }
  .hero-titre { font-size: clamp(2.6rem, 10vw, 4rem); }

  .competences-grille,
  .projets-grille { grid-template-columns: 1fr; }

  /* Timeline mobile : empilé */
  .formation-timeline::before { display: none; }
  .formation-carte { grid-template-columns: 1fr; gap: 0; padding-bottom: var(--space-xl); }
  .formation-carte::after { display: none; }
  .formation-periode {
    text-align: left;
    padding-top: 0;
    padding-right: 0;
    margin-bottom: var(--space-sm);
    font-size: 0.8rem;
    color: var(--primary);
  }
  .formation-actuelle .formation-periode { color: var(--accent); }

  .contact-container { padding: var(--space-2xl) var(--space-md); }
  .btn { min-height: 44px; }
  .btn-email { padding: 0.85rem 1.5rem; font-size: 0.9rem; min-height: 44px; }
  .apropos-contenu { padding: var(--space-lg); }
  .nav-principale { padding: 0 var(--space-md); }
}

@media (max-width: 480px) {
  .hero-titre { font-size: 2.4rem; }
  .section-titre { font-size: 1.5rem; }
  .btn { padding: 0.65rem 1.2rem; font-size: 0.85rem; }
}

/* ===== IMPRESSION ===== */
@media print {
  .site-header, .hero-liens-sociaux, .hero::before, .hero::after,
  .hero-scroll-indicator, .nav-menu-btn { display: none; }
  body { background: white; color: black; }
  .section { padding: 1rem 0; }
  .apropos-contenu, .competence-carte, .projet-carte, .formation-details {
    break-inside: avoid;
    border: 1px solid #ccc;
    background: white;
    box-shadow: none;
    color: black;
  }
  .section-titre, .formation-diplome, .projet-titre { color: black; }
  .section-label, .formation-lieu, .formation-periode { color: #555; }
  .badge { border: 1px solid #ccc; color: #333; background: #f5f5f5; }
}

/* ===== RÉDUCTION DES ANIMATIONS ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-animate] { opacity: 1; transform: none; }
}