/* ================================================================
   PORTFOLIO – STYLE PRINCIPAL
   Style : Dark Cyber / Terminal / Hacker
   Auteur : Votre Nom
   Version : 1.0
================================================================ */

/* ----------------------------------------------------------------
   1. VARIABLES CSS & RESET
---------------------------------------------------------------- */
:root {
  /* Palette couleurs */
  --bg-primary:     #0a0c10;
  --bg-secondary:   #111318;
  --bg-card:        #151820;
  --bg-card-hover:  #1c2030;

  --neon-green:     #00ff88;
  --neon-cyan:      #00e5ff;
  --neon-purple:    #bd00ff;
  --neon-red:       #ff0044;
  --neon-yellow:    #ffdd00;

  --text-primary:   #e2e8f0;
  --text-secondary: #8892a4;
  --text-muted:     #4a5568;

  --border-color:   #1e2535;
  --border-neon:    rgba(0, 255, 136, 0.25);

  /* Typographie */
  --font-mono:   'JetBrains Mono', 'Courier New', monospace;
  --font-sans:   'Inter', system-ui, sans-serif;

  /* Espacements */
  --section-padding: 100px 0;
  --container-max:   1200px;

  /* Transitions */
  --transition:  all 0.3s ease;
  --transition-slow: all 0.6s ease;

  /* Ombres */
  --shadow-neon:  0 0 20px rgba(0, 255, 136, 0.15);
  --shadow-card:  0 4px 24px rgba(0, 0, 0, 0.4);
}

/* Reset de base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  /* Légère texture grille */
  background-image:
    linear-gradient(rgba(0, 255, 136, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ----------------------------------------------------------------
   2. CANVAS MATRIX (arrière-plan animé)
---------------------------------------------------------------- */
#matrix-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.045; /* très subtil pour ne pas gêner la lecture */
  pointer-events: none;
}

/* ----------------------------------------------------------------
   3. UTILITAIRES
---------------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Texte coloré */
.c-neon    { color: var(--neon-green); }
.c-cyan    { color: var(--neon-cyan); }
.c-green   { color: var(--neon-green); }
.c-white   { color: var(--text-primary); }
.prompt-sign { color: var(--neon-green); font-family: var(--font-mono); }

/* Titre de section */
.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--neon-green);
  margin-bottom: 60px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: attr(data-label);
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.section {
  padding: var(--section-padding);
}

/* Animation d'apparition au scroll */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Délais en cascade */
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }
.fade-in:nth-child(5) { transition-delay: 0.4s; }
.fade-in:nth-child(6) { transition-delay: 0.5s; }

/* ----------------------------------------------------------------
   4. BOUTONS
---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--neon-green);
  color: var(--bg-primary);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.btn-primary:hover {
  background: #00cc6a;
  box-shadow: 0 0 35px rgba(0, 255, 136, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.15);
}

.btn-secondary:hover {
  background: rgba(0, 229, 255, 0.08);
  box-shadow: 0 0 25px rgba(0, 229, 255, 0.3);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--neon-green);
  transform: translateY(-2px);
}

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

/* ----------------------------------------------------------------
   5. NAVIGATION
---------------------------------------------------------------- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(10, 12, 16, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

#navbar.scrolled {
  padding: 10px 40px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--neon-green);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-brand { color: var(--text-primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: var(--transition);
  letter-spacing: 0.04em;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--neon-green);
  border-color: var(--border-neon);
  background: rgba(0, 255, 136, 0.05);
}

/* Bouton hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--neon-green);
  border-radius: 2px;
  transition: var(--transition);
}

/* ----------------------------------------------------------------
   6. HÉRO / ACCUEIL
---------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 120px 40px 80px;
  max-width: var(--container-max);
  margin: 0 auto;
  position: relative;
}

/* Ligne terminal typée */
.terminal-line {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Effet glitch sur le nom */
.hero-name {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 16px;
  position: relative;
}

.glitch {
  animation: glitch 4s infinite;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
}

.glitch::before {
  color: var(--neon-cyan);
  animation: glitch-before 4s infinite;
  clip-path: polygon(0 30%, 100% 30%, 100% 50%, 0 50%);
}

.glitch::after {
  color: var(--neon-red);
  animation: glitch-after 4s infinite;
  clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%);
}

@keyframes glitch {
  0%, 90%, 100% { transform: none; }
  92%            { transform: skew(-0.5deg); }
  94%            { transform: skew(0.5deg); }
}

@keyframes glitch-before {
  0%, 90%, 100%  { transform: none; opacity: 0; }
  92%            { transform: translate(-3px, 0); opacity: 0.7; }
  94%            { transform: translate(3px, 0); opacity: 0.7; }
}

@keyframes glitch-after {
  0%, 90%, 100%  { transform: none; opacity: 0; }
  93%            { transform: translate(3px, 0); opacity: 0.7; }
  95%            { transform: translate(-3px, 0); opacity: 0.7; }
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  color: var(--neon-cyan);
  font-weight: 400;
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}

.hero-title .divider { color: var(--text-muted); }

.hero-bio {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 20px;
}

/* Barre de statut */
.status-bar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 255, 136, 0.05);
  border: 1px solid var(--border-neon);
  border-radius: 4px;
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--neon-green);
  margin-bottom: 32px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}

.status-dot.active {
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 8px var(--neon-green); }
  50%      { box-shadow: 0 0 16px var(--neon-green), 0 0 24px rgba(0,255,136,0.3); }
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.hero-socials {
  display: flex;
  gap: 20px;
}

.hero-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: var(--transition);
}

.hero-socials a:hover {
  color: var(--neon-green);
  border-color: var(--border-neon);
  transform: translateY(-3px);
  box-shadow: var(--shadow-neon);
}

/* Curseur clignotant */
.cursor-blink {
  animation: blink 1s step-end infinite;
  color: var(--neon-green);
  font-weight: 300;
}

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

/* Terminal flottant */
.hero-decoration {
  flex-shrink: 0;
}

.floating-terminal {
  width: 340px;
  background: #0d1017;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-card), 0 0 40px rgba(0, 255, 136, 0.08);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

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

.t-dot.red    { background: #ff5f57; }
.t-dot.yellow { background: #febc2e; }
.t-dot.green  { background: #28c840; }

.t-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: auto;
}

.terminal-body {
  padding: 16px;
  line-height: 2;
}

/* Flèche scroll */
.scroll-down {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  font-size: 1.2rem;
  animation: bounce 2s infinite;
  transition: var(--transition);
}

.scroll-down:hover { color: var(--neon-green); }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(8px); }
}

/* ----------------------------------------------------------------
   7. SECTION À PROPOS
---------------------------------------------------------------- */
.about {
  background: var(--bg-secondary);
  background-image:
    linear-gradient(rgba(0, 255, 136, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-bottom: 70px;
}

.about-text h3,
.about-timeline h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--neon-cyan);
  margin-bottom: 16px;
  margin-top: 28px;
}

.about-text h3:first-child,
.about-timeline h3:first-child { margin-top: 0; }

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.about-text p strong { color: var(--text-primary); }

.objectives-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

.objectives-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.objectives-list li i {
  color: var(--neon-green);
  width: 20px;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--neon-green), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
}

.timeline-dot {
  position: absolute;
  left: -26px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--neon-green);
  border: 2px solid var(--bg-secondary);
  box-shadow: 0 0 8px var(--neon-green);
}

.timeline-item.future .timeline-dot {
  background: var(--text-muted);
  box-shadow: none;
  border-style: dashed;
}

.t-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-green);
  display: block;
  margin-bottom: 4px;
}

.timeline-item.future .t-year { color: var(--text-muted); }

.timeline-content h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.timeline-content p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Stack technique */
.stack-title {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--neon-cyan);
  margin-bottom: 32px;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.stack-category {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  transition: var(--transition);
}

.stack-category:hover {
  border-color: var(--border-neon);
  box-shadow: var(--shadow-neon);
}

.stack-category h4 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--neon-green);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: 3px;
  transition: var(--transition);
}

.badge:hover {
  color: var(--neon-cyan);
  border-color: rgba(0, 229, 255, 0.3);
}

/* ----------------------------------------------------------------
   8. SECTION PROJETS
---------------------------------------------------------------- */
.projects { background: var(--bg-primary); }

/* Filtres */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 50px;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 6px 18px;
  border-radius: 3px;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--neon-green);
  border-color: var(--border-neon);
  background: rgba(0, 255, 136, 0.06);
}

/* Grille projets */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

/* Carte projet */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
}

/* Ligne néon en haut de la carte au hover */
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.project-card:hover { border-color: var(--border-neon); box-shadow: var(--shadow-neon); transform: translateY(-4px); }
.project-card:hover::before { transform: scaleX(1); }

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(0, 255, 136, 0.08);
  border: 1px solid var(--border-neon);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-green);
  font-size: 1.1rem;
}

.card-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

/* Tags de catégorie */
.card-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 2px 8px;
  border-radius: 3px;
}

.card-tag.sysadmin { background: rgba(0, 229, 255, 0.1); color: var(--neon-cyan); border: 1px solid rgba(0,229,255,0.2); }
.card-tag.reseau   { background: rgba(189, 0, 255, 0.1); color: var(--neon-purple); border: 1px solid rgba(189,0,255,0.2); }
.card-tag.cyber    { background: rgba(255, 0, 68, 0.1);  color: var(--neon-red);    border: 1px solid rgba(255,0,68,0.2); }
.card-tag.devops   { background: rgba(0, 255, 136, 0.1); color: var(--neon-green);  border: 1px solid rgba(0,255,136,0.2); }

/* Statut */
.card-status {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: 3px;
}

.card-status.done { background: rgba(0, 255, 136, 0.08); color: var(--neon-green); }
.card-status.wip  { background: rgba(255, 221, 0, 0.08); color: var(--neon-yellow); }

.project-card h3 {
  font-size: 1.1rem;
  color: var(--text-primary);
  font-weight: 600;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.card-arch {
  background: rgba(0, 0, 0, 0.3);
  border-left: 2px solid var(--neon-green);
  padding: 10px 14px;
  border-radius: 0 4px 4px 0;
  font-size: 0.8rem;
}

.arch-label { color: var(--text-muted); font-size: 0.72rem; display: block; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.05em; }
.card-arch code { font-family: var(--font-mono); color: var(--neon-cyan); font-size: 0.78rem; }

.card-technologies {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  padding: 3px 8px;
  border-radius: 3px;
}

.card-links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

.card-links a {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.card-links a:hover { color: var(--neon-green); }

/* Filtre caché */
.project-card.hidden {
  display: none;
}

/* ----------------------------------------------------------------
   9. SECTION COMPÉTENCES
---------------------------------------------------------------- */
.skills {
  background: var(--bg-secondary);
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.skills-bars h3,
.skills-icons h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--neon-cyan);
  margin-bottom: 28px;
}

/* Barres de progression */
.skill-bar-item {
  margin-bottom: 22px;
}

.skill-bar-header {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.skill-bar-header span:last-child { color: var(--neon-green); }

.skill-bar-bg {
  height: 6px;
  background: rgba(255,255,255,0.05);
  border-radius: 3px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  width: 0; /* initialisé à 0, animé par JS */
  background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan));
  border-radius: 3px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px rgba(0, 255, 136, 0.4);
}

/* Icônes tech */
.skills-icons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 16px;
}

.skill-icon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 18px 8px;
  transition: var(--transition);
  cursor: default;
}

.skill-icon-card i {
  font-size: 1.8rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.skill-icon-card span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-align: center;
  transition: var(--transition);
}

.skill-icon-card:hover {
  border-color: var(--border-neon);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-neon);
}

.skill-icon-card:hover i,
.skill-icon-card:hover span {
  color: var(--neon-green);
}

/* ----------------------------------------------------------------
   10. SECTION CERTIFICATIONS
---------------------------------------------------------------- */
.certifications { background: var(--bg-primary); }

.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.cert-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  transition: var(--transition);
}

.cert-card:hover {
  border-color: var(--border-neon);
  box-shadow: var(--shadow-neon);
  transform: translateY(-3px);
}

.cert-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.cert-icon.completed {
  background: rgba(0, 255, 136, 0.1);
  color: var(--neon-green);
  border: 2px solid rgba(0, 255, 136, 0.3);
}

.cert-icon.future-cert {
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  border: 2px dashed var(--border-color);
}

.cert-content h3 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.cert-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.cert-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 8px;
}

.cert-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 2px 10px;
  border-radius: 3px;
}

.cert-badge.done   { background: rgba(0,255,136,0.1); color: var(--neon-green); border: 1px solid rgba(0,255,136,0.2); }
.cert-badge.future { background: rgba(255,255,255,0.04); color: var(--text-muted); border: 1px solid var(--border-color); }

/* ----------------------------------------------------------------
   11. SECTION HOMELAB
---------------------------------------------------------------- */
.homelab {
  background: var(--bg-secondary);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 40px;
  margin-top: -40px;
}

/* Diagramme réseau ASCII */
.network-diagram {
  margin-bottom: 50px;
}

.ascii-diagram {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--neon-green);
  background: #080b0f;
  border: 1px solid var(--border-neon);
  border-radius: 8px;
  padding: 28px 32px;
  overflow-x: auto;
  line-height: 1.7;
  white-space: pre;
  box-shadow: var(--shadow-neon);
}

/* Specs du homelab */
.homelab-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.spec-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}

.spec-card:hover {
  border-color: var(--border-neon);
  box-shadow: var(--shadow-neon);
  transform: translateY(-3px);
}

.spec-card i {
  font-size: 2rem;
  color: var(--neon-green);
  margin-bottom: 16px;
  display: block;
}

.spec-card h4 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--neon-cyan);
  margin-bottom: 10px;
}

.spec-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ----------------------------------------------------------------
   12. SECTION CONTACT
---------------------------------------------------------------- */
.contact { background: var(--bg-primary); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 70px;
}

.contact-info h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--neon-cyan);
  margin-bottom: 16px;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 0.95rem;
}

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

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  transition: var(--transition);
  padding: 10px 14px;
  border-radius: 4px;
  border: 1px solid transparent;
}

.contact-link i {
  width: 20px;
  color: var(--neon-green);
}

.contact-link:hover {
  color: var(--neon-green);
  border-color: var(--border-neon);
  background: rgba(0, 255, 136, 0.04);
}

.contact-availability {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--neon-green);
}

/* Formulaire */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--neon-green);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--border-neon);
  background: var(--bg-card-hover);
  box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-feedback {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-height: 24px;
  margin-top: -8px;
}

.form-feedback.success { color: var(--neon-green); }
.form-feedback.error   { color: var(--neon-red); }

/* ----------------------------------------------------------------
   13. FOOTER
---------------------------------------------------------------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 40px 0 20px;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--neon-green);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 14px;
}

.footer-socials a {
  color: var(--text-muted);
  font-size: 1.05rem;
  transition: var(--transition);
}

.footer-socials a:hover { color: var(--neon-green); }

.footer-cmd {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  margin: 0 40px;
}

.footer-cmd .typed-footer { color: var(--neon-red); }

/* ----------------------------------------------------------------
   14. BOUTON BACK TO TOP
---------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  color: var(--neon-green);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  box-shadow: var(--shadow-neon);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
}

.back-to-top:hover {
  background: rgba(0, 255, 136, 0.12);
  transform: translateY(-3px);
}

/* ----------------------------------------------------------------
   15. RESPONSIVE – TABLETTE (≤900px)
---------------------------------------------------------------- */
@media (max-width: 900px) {
  /* Hero */
  .hero {
    flex-direction: column;
    text-align: center;
    padding: 120px 24px 80px;
  }

  .hero-bio { margin: 0 auto 20px; }
  .hero-btns { justify-content: center; }
  .hero-socials { justify-content: center; }

  .hero-decoration { display: none; }

  /* About */
  .about-grid    { grid-template-columns: 1fr; gap: 40px; }
  .skills-grid   { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid  { grid-template-columns: 1fr; gap: 40px; }

  /* Nav */
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    height: 100vh;
    width: 260px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    flex-direction: column;
    justify-content: center;
    padding: 40px 32px;
    gap: 16px;
    transition: right 0.35s ease;
    z-index: 999;
  }

  .nav-links.open { right: 0; }
  .nav-links a { font-size: 1rem; }
  .nav-toggle { display: flex; z-index: 1000; }

  /* Nav toggle animation */
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Section title */
  .section-title::after { display: none; }
}

/* ----------------------------------------------------------------
   16. RESPONSIVE – MOBILE (≤600px)
---------------------------------------------------------------- */
@media (max-width: 600px) {
  :root { --section-padding: 70px 0; }

  #navbar { padding: 14px 20px; }

  .projects-grid  { grid-template-columns: 1fr; }
  .certs-grid     { grid-template-columns: 1fr; }
  .homelab-specs  { grid-template-columns: 1fr 1fr; }
  .stack-grid     { grid-template-columns: 1fr; }
  .hero-btns      { flex-direction: column; align-items: center; }

  .ascii-diagram { font-size: 0.6rem; padding: 16px; }
  .floating-terminal { width: 100%; }

  .footer-content { flex-direction: column; text-align: center; }

  .back-to-top { bottom: 20px; right: 20px; }
}

/* ----------------------------------------------------------------
   17. SCROLLBAR PERSONNALISÉE
---------------------------------------------------------------- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--neon-green); }

/* ----------------------------------------------------------------
   18. SÉLECTION DE TEXTE
---------------------------------------------------------------- */
::selection {
  background: rgba(0, 255, 136, 0.2);
  color: var(--neon-green);
}