/* ===== CSS VARIABLES ===== */
:root {
  --bg: #0d1117;
  --bg-alt: #161b22;
  --bg-card: #1c2128;
  --bg-card-hover: #21262d;
  --accent: #2563eb;
  --accent-light: #3b82f6;
  --accent-glow: rgba(37, 99, 235, 0.25);
  --cyan: #06b6d4;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #d29922;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --border: #30363d;
  --border-light: #21262d;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

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

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

::selection { background: var(--accent-glow); color: var(--accent-light); }

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

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

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 70px;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(13, 17, 23, 0.98);
  box-shadow: var(--shadow);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}

.nav-brand:hover { color: var(--accent-light); }

.brand-bracket { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text);
  background: var(--bg-alt);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.nav-admin {
  color: var(--text-muted);
  padding: 8px 12px;
  font-size: 0.8rem;
}

.nav-admin:hover { color: var(--accent-light); background: var(--accent-glow); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 100px 24px 60px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
  max-width: 700px;
  animation: fadeInUp 0.8s ease;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--accent-light);
  margin-bottom: 24px;
}

.hero-photo-wrapper {
  width: 130px; height: 130px;
  margin: 0 auto 24px;
  position: relative;
}

.hero-photo {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.15);
}

.hero-photo-placeholder {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--bg-card);
  border: 3px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--text-muted);
}

.hero-name {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-titre {
  font-size: 1.1rem;
  color: var(--accent-light);
  font-weight: 500;
  margin-bottom: 16px;
  font-family: var(--font-mono);
}

.hero-desc {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 500px;
  margin: 0 auto 16px;
  line-height: 1.7;
}

.hero-location {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.hero-location i { color: var(--accent); }

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-mouse {
  width: 26px; height: 40px;
  border: 2px solid var(--border);
  border-radius: 13px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-wheel {
  width: 4px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollWheel 1.5s infinite;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  font-family: var(--font);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(37, 99, 235, 0.05);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

/* ===== SECTIONS ===== */
.section { padding: 96px 24px; }
.section-alt { background: var(--bg-alt); }

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 56px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}

.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border) 0%, transparent 100%);
}

/* ===== PRÉSENTATION ===== */
.presentation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.presentation-text h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.presentation-text p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 24px;
}

.pres-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.info-item i {
  color: var(--accent);
  width: 16px;
  flex-shrink: 0;
}

/* ===== INFO CARD (Présentation) ===== */
.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.info-card-header {
  padding: 16px 20px;
  background: rgba(37, 99, 235, 0.06);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent-light);
}

.info-card-header i { font-size: 1rem; }

.info-card-body {
  padding: 8px 0;
}

.info-card-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-light);
  transition: background var(--transition);
}

.info-card-row:last-child { border-bottom: none; }

.info-card-row:hover { background: rgba(255,255,255,0.02); }

.info-card-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.info-card-label i { color: var(--accent); width: 14px; text-align: center; }

.info-card-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  text-align: right;
}

/* ===== CARDS ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  animation: fadeInUp 0.5s ease forwards;
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.15);
  transform: translateY(-4px);
}

.card-header {
  padding: 20px 20px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.card-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.badge-projet { background: rgba(37, 99, 235, 0.15); color: var(--accent-light); }
.badge-tp { background: rgba(6, 182, 212, 0.15); color: var(--cyan); }

.card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.card-body {
  padding: 16px 20px;
  flex: 1;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

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

.card-objectif {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 8px;
  padding: 10px 12px;
  background: rgba(37, 99, 235, 0.05);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 20px 16px;
}

.tag {
  padding: 3px 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.card-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: 10px;
}

.card-footer-pdfs {
  flex-direction: column;
  gap: 8px;
}

.pdf-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.pdf-name {
  font-size: 0.82rem;
  color: var(--text-muted);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-pdf {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--accent-light);
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.btn-pdf:hover {
  background: rgba(37, 99, 235, 0.2);
  transform: translateY(-1px);
}

.btn-pdf-dl {
  background: rgba(5, 150, 105, 0.1);
  color: #10b981;
}

.btn-pdf-dl:hover {
  background: rgba(5, 150, 105, 0.2);
}

/* ===== PDF MODAL ===== */
@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(32px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.pdf-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.pdf-modal-overlay.open {
  display: flex;
  animation: modalFadeIn 0.2s ease forwards;
}

.pdf-modal-overlay.open .pdf-modal-box {
  animation: modalSlideUp 0.25s ease forwards;
}

.pdf-modal-box {
  display: flex;
  flex-direction: column;
  width: min(92vw, 960px);
  height: 88vh;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  overflow: hidden;
}

.pdf-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
}

.pdf-modal-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pdf-modal-close {
  background: rgba(255,255,255,0.08);
  border: none;
  color: var(--text);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  flex-shrink: 0;
  transition: background 0.2s;
}

.pdf-modal-close:hover {
  background: rgba(255,255,255,0.15);
}

.pdf-modal-frame {
  flex: 1;
  width: 100%;
  border: none;
  background: #fff;
}

/* ===== COMPÉTENCES ===== */
.competences-wrapper {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.competence-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}

.competence-category:hover { border-color: rgba(37, 99, 235, 0.4); }

.cat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.cat-icon {
  width: 42px; height: 42px;
  background: rgba(37, 99, 235, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-light);
  font-size: 1.1rem;
}

.cat-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.skills-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.skill-item::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.skill-item:hover {
  border-color: var(--accent);
  background: rgba(37, 99, 235, 0.06);
}

.skill-name { font-size: 0.9rem; font-weight: 500; color: var(--text); }

.cat-pdf-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ===== VEILLE ===== */
.veille-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 24px;
}

.veille-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.veille-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.1);
  transform: translateY(-3px);
}

.veille-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.veille-image-placeholder {
  height: 80px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--accent);
}

.veille-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }

.veille-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.veille-source {
  padding: 3px 10px;
  background: rgba(6, 182, 212, 0.1);
  color: var(--cyan);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.veille-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-left: auto;
}

.veille-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.veille-resume {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
  flex: 1;
}

.veille-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-light);
}

.veille-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-light);
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
}

.veille-link:hover { gap: 10px; }

/* ===== CONTACT ===== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-intro {
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.7;
}

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

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
}

.contact-item-icon {
  width: 42px; height: 42px;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-light);
  flex-shrink: 0;
}

.contact-item-text strong {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.contact-item-text a {
  color: var(--text);
  transition: var(--transition);
}

.contact-item-text a:hover { color: var(--accent-light); }

.contact-socials {
  display: flex;
  gap: 12px;
}

.social-btn {
  width: 42px; height: 42px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.social-btn:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(37, 99, 235, 0.05);
  transform: translateY(-2px);
}

.contact-cv {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.cv-icon {
  width: 70px; height: 70px;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--accent-light);
}

.contact-cv h4 {
  font-size: 1.1rem;
  font-weight: 700;
}

.contact-cv p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border-light);
  padding: 32px 24px;
  text-align: center;
}

.footer .container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.footer-admin {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: 20px;
  transition: var(--transition);
}

.footer-admin:hover { color: var(--accent-light); background: rgba(37, 99, 235, 0.08); }

/* ===== EMPTY STATE ===== */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.empty-state i { font-size: 3rem; opacity: 0.3; }
.empty-state p { font-size: 0.95rem; }

.loading-text { color: var(--text-muted); text-align: center; padding: 40px; }

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

@keyframes scrollWheel {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(10px); }
}

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

  .nav-links {
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(13, 17, 23, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    gap: 4px;
    z-index: 999;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-link { width: 100%; text-align: center; padding: 12px; }

  .presentation-grid,
  .contact-wrapper { grid-template-columns: 1fr; }

  .pres-info-grid { grid-template-columns: 1fr; }

  .cards-grid { grid-template-columns: 1fr; }

  .skills-list { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .section { padding: 64px 16px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .veille-grid { grid-template-columns: 1fr; }
}