nav{display:flex;gap:12px;padding:12px 16px;background:#fff;border-bottom:1px solid #eee;position:sticky;top:0}
nav a{text-decoration:none;color:#222;padding:6px 10px;border-radius:8px}
nav a:hover{background:#f2f2f2}

.menu-section{margin:16px 0}
.menu-section h2{margin:12px 0;font-size:20px}
.menu-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.product-card{background:#fff;border:1px solid #eee;border-radius:12px;padding:10px;display:flex;flex-direction:column;gap:6px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.product-card img{width:100%;height:120px;object-fit:cover;border-radius:8px;background:#f5f5f5}
.product-card h3{margin:0;font-size:16px}
.product-card .price{color:#0a7;font-weight:600}
.product-card .add-to-cart{border:0;padding:8px;border-radius:8px;background:#111;color:#fff}

.toolbar{display:flex;gap:8px;padding:12px 16px;background:#fff;position:sticky;top:48px;z-index:2;border-bottom:1px solid #eee}
.toolbar input{padding:8px 10px;border:1px solid #ddd;border-radius:8px;min-width:220px}

.layout{display:grid;grid-template-columns:1fr 300px;gap:16px;padding:16px}
.cart{background:#fff;border:1px solid #eee;border-radius:12px;padding:12px;height:fit-content;position:sticky;top:116px}
.total{margin-top:8px;font-weight:700}