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

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

    /* MENU */
    .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:white;padding:20px;transition:0.3s;z-index:2000;box-shadow:2px 0 10px rgba(0,0,0,0.1)}
    .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;
      text-align:center;
      color:white;
      box-shadow:0 4px 14px rgba(0,0,0,.15);
    }
    .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;}
    .categorie{margin-bottom:30px;}
    .categorie h2{margin-bottom:12px;font-size:18px;text-align:center;color:var(--accent);}
    .produits{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;}
    .produit{background:var(--card);border-radius:var(--radius);padding:12px;box-shadow:0 4px 12px rgba(0,0,0,0.06);}
    .produit img{width:100%;height:120px;object-fit:contain;background:#fff;border-radius:12px;margin-bottom:8px;}
    .produit h3{font-size:14px;}
    .produit p{font-size:12px;color:#666;margin-bottom:8px;}
    .btn-details{display:block;text-align:center;background:var(--accent);color:white;padding:8px;border-radius:10px;text-decoration:none;font-size:12px;}
    .btn-details:hover{background:#2563eb;}

    footer{text-align:center;padding:20px;font-size:12px;color:#777;}

.info-ecole{
  background:#facc15;
  padding:12px;
  border-radius:12px;
  margin:16px;
  font-size:14px;
  text-align:center;
  font-weight:500;
}
.btn-liste{
  display:block;
  width:fit-content;
  margin:20px auto;
  background:linear-gradient(135deg,#10b981,#34d399);
  color:white;
  padding:12px 18px;
  border-radius:12px;
  text-decoration:none;
  font-weight:600;
  text-align:center;
  box-shadow:0 6px 16px rgba(0,0,0,.15);
  transition:0.3s;
}

.btn-liste:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(0,0,0,.2);
}