html {
  scroll-behavior: smooth;
}

:root{
  --bg:#0f1720;
  --card:#0f1728;
  --muted:#9aa4b2;
  --text:#e6eef6;
  --accent:#6ee7b7;
  --glass: rgba(255,255,255,0.04);
  --radius:14px;
  --container:1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  background: linear-gradient(180deg,#07101a 0%, #0b1220 100%);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
.container{max-width:var(--container);margin:0 auto;padding:2rem}

/* Header */
.site-header{
  position:sticky;
  top:0;
  backdrop-filter: blur(6px);
  background:linear-gradient(180deg, rgba(10,12,18,0.6), rgba(10,12,18,0.25));
  border-bottom:1px solid rgba(255,255,255,0.03);
  z-index:40;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0.8rem 1rem;
  flex-wrap:wrap;
}
.brand{font-weight:700}
.nav{display:flex;gap:1rem;flex-wrap:wrap}
.nav a{color:var(--muted);text-decoration:none;font-size:0.95rem}
.nav a:hover{color:var(--text)}
.nav-toggle{
  display:none;
  background:none;
  border:0;
  color:var(--text);
  font-size:1.3rem;
  cursor:pointer;
}

/* HERO */
.hero{padding:4rem 1rem}
.hero-inner{
  display:grid;
  grid-template-columns:1fr 360px;
  gap:2rem;
  align-items:center;
}
.hero-text h1{font-size:2.2rem;margin:0}
.lead{color:var(--muted);margin-top:0.6rem}
.accent{color:var(--accent)}
.btn{display:inline-block;padding:0.6rem 1rem;border-radius:10px;text-decoration:none;border:1px solid transparent;cursor:pointer;font-size:0.95rem}
.btn.primary{background:linear-gradient(90deg,var(--accent), #4fd7c3);color:#042226;font-weight:600}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--text)}
.cta-row{margin-top:1.2rem;display:flex;gap:0.8rem;flex-wrap:wrap}

/* PROFILE CARD */
.profile-card{background:var(--glass);padding:1rem;border-radius:12px;display:flex;gap:1rem;align-items:center;flex-wrap:wrap}
.avatar{width:72px;height:72px;border-radius:10px;object-fit:cover}
.profile-meta .name{font-weight:600}
.profile-meta .role{font-size:0.85rem;color:var(--muted)}

/* PROJECT PAGE SPÉCIFIQUE */
.project-hero .hero-inner{grid-template-columns:1fr 420px;gap:2rem}
.project-hero .img-hero{width:100%;border-radius:12px;box-shadow:0 10px 30px rgba(2,6,12,0.6)}

.presentation,.features,.code,.galerie{padding:3rem 1rem}

.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem}
.feature-card{background:var(--card);padding:1rem;border-radius:12px;text-align:center;box-shadow:0 6px 18px rgba(2,6,12,0.5)}

pre{background:rgba(2,6,12,0.8);color:var(--accent);padding:1rem;border-radius:10px;overflow-x:auto;white-space:pre-wrap;word-wrap:break-word}

/* Galerie */
.grid-galerie{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:18px;margin-top:1rem}
.grid-galerie img{width:100%;border-radius:12px;object-fit:cover;transition:transform .32s ease, box-shadow .32s ease}
.grid-galerie img:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 18px 36px rgba(2,6,12,0.6)}

/* FOOTER */
.site-footer{padding:1.2rem 1rem;text-align:center;color:var(--muted);border-top:1px solid rgba(255,255,255,0.03);margin-top:2rem}

/* ANIMATIONS */
.fade-in{opacity:0;animation:fadeIn 1.1s forwards}
.slide-up{opacity:0;transform:translateY(24px);animation:slideUp 0.9s forwards}
.zoom-in{opacity:0;transform:scale(.96);animation:zoomIn 0.9s forwards}

@keyframes fadeIn{ to{opacity:1} }
@keyframes slideUp{ to{opacity:1;transform:translateY(0)} }
@keyframes zoomIn{ to{opacity:1;transform:scale(1)} }

/* RESPONSIVE */
@media (max-width:1200px){
  .project-hero .hero-inner{grid-template-columns:1fr 1fr}
}

@media (max-width:900px){
  .hero-inner,.project-hero .hero-inner{grid-template-columns:1fr;gap:1.5rem}
  .features-grid,.grid-galerie{grid-template-columns:1fr}
  .nav{display:none}
  .nav-toggle{display:block}
}

@media (max-width:600px){
  .hero-text h1{font-size:1.8rem}
  .lead{font-size:0.9rem}
  .btn{font-size:0.85rem;padding:0.5rem 0.8rem}
  .profile-card{flex-direction:column;align-items:flex-start}
  .avatar{width:56px;height:56px}
  .container{padding:1rem}
}

@media (max-width:400px){
  .hero-text h1{font-size:1.5rem}
  .lead{font-size:0.8rem}
  .cta-row{flex-direction:column;gap:0.6rem}
  .btn{width:100%;text-align:center}
}