:root{
  --accent:#3b82f6;
  --yellow:#facc15;
  --bg:#f8fafc;
  --card:#fff;
  --radius:16px;
}

*{margin:0;padding:0;box-sizing:border-box;font-family:Poppins,sans-serif}
body{background:var(--bg);color:#111;-webkit-font-smoothing: antialiased;}

/* MENU TOGGLE */
.menu-toggle{position:fixed;top:12px;left:12px;font-size:24px;z-index:2001;cursor:pointer}
.side-menu{position:fixed;top:0;left:-260px;width:260px;height:100%;background:#fff;padding:20px;transition:.3s;z-index:2000;box-shadow:2px 0 10px rgba(0,0,0,.1)}
.side-menu.active{left:0}
.side-menu a{display:block;margin:12px 0;text-decoration:none;color:#333;font-weight:500}

/* HEADER */
header{
  position: sticky;
  top:0;
  background: linear-gradient(135deg,var(--accent),#60a5fa);
  z-index:1000;
  padding:16px 0;
  box-shadow:0 4px 14px rgba(0,0,0,.15);
  text-align:center;
  color:white;
}

.header-center{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
}

.logo-center img{
  height:55px;
  display:block;
  margin:0 auto;
  transition: transform 0.3s;
}

.logo-center img:hover{transform:scale(1.05);}

.header-text h1{
  margin:6px 0 2px 0;
  font-size:20px;
  font-weight:600;
  color:white;
}

.retour-accueil{
  display:inline-block;
  margin-top:6px;
  background:var(--yellow);
  color:#111;
  padding:6px 12px;
  border-radius:10px;
  text-decoration:none;
  font-weight:600;
  font-size:14px;
}

/* MAIN */
main{padding:16px}

/* CATEGORIES */
.categorie{margin-bottom:25px}
.categorie h2{
  margin-bottom:12px;
  color:var(--accent);
  text-align:center;
  font-size:18px;
}

/* PRODUITS */
.produits{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
}

.produit{
  background:var(--card);
  border-radius:var(--radius);
  text-align:center;
  box-shadow:0 6px 16px rgba(0,0,0,.08);
  padding:12px;
  transition:transform .2s;
}

.produit img{
  width:100%;
  height:120px;
  object-fit:contain;
  border-radius:12px;
}

.produit p{
  margin-top:6px;
  font-size:13px;
}

.prix{
  font-weight:600;
  color:#16a34a;
}

/* bouton commander */
.btn{
  display:block;
  margin-top:8px;
  padding:10px;
  background:#25D366;
  color:white;
  text-decoration:none;
  border-radius:10px;
  font-size:13px;
  transition: background .2s;
}
.btn:hover{background:#16a34a}

.menu-categories{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:10px;
  background:white;
  position:sticky;
  top:90px;
  z-index:999;
  box-shadow:0 2px 8px rgba(0,0,0,.05);
}

.menu-categories a{
  flex-shrink:0;
  background:var(--accent);
  color:white;
  padding:8px 12px;
  border-radius:20px;
  text-decoration:none;
  font-size:13px;
  white-space:nowrap;
  transition:.2s;
}

.menu-categories a:hover{
  background:#2563eb;
}

#btnTop{
  position:fixed;
  bottom:20px;
  right:20px;
  background:var(--accent);
  color:white;
  border:none;
  padding:12px 14px;
  border-radius:50%;
  font-size:18px;
  cursor:pointer;
  box-shadow:0 4px 12px rgba(0,0,0,.2);
  display:none;
  z-index:3000;
  transition:.3s;
}

#btnTop:hover{
  background:#2563eb;
  transform:scale(1.1);
}

/* responsive */
@media(min-width:768px){
  .produits{grid-template-columns:repeat(4,1fr)}
}