html { scroll-behavior: smooth; }
    * { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', sans-serif; }
    body { background: #f8f9fa; color: #333; }

    /* BOTÓN VOLVER */
    .btn-volver {
      position: fixed; top: 15px; left: 15px; z-index: 1100;
      background: #222; color: white; padding: 10px 15px;
      border-radius: 8px; text-decoration: none; font-weight: bold;
      transition: 0.3s; box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    }
    .btn-volver:hover { background: #444; transform: translateX(-5px); }

    /* HEADER */
    .header-verduras {
      position: sticky; top: 0; z-index: 1000; display: flex;
      justify-content: space-between; align-items: center;
      background: #fff; padding: 15px 30px 15px 120px; border-bottom: 2px solid #eee;
    }
    .status-box { padding: 8px 15px; border-radius: 20px; font-size: 13px; font-weight: bold; }
    .disp { background: #d4edda; color: #155724; }
    .agot { background: #f8d7da; color: #721c24; }

    /* LAYOUT */
    .main-container { display: flex; min-height: 100vh; }
    .sidebar-tipos {
      width: 260px; background: #222; color: #fff; padding: 30px 20px;
      position: sticky; top: 72px; height: calc(100vh - 72px);
    }
    .sidebar-tipos a {
      color: #fff; text-decoration: none; display: flex; align-items: center;
      gap: 10px; padding: 12px; border-radius: 8px; transition: 0.3s;
    }
    .sidebar-tipos a:hover { background: #333; color: #f1c40f; }

    /* PRODUCTOS */
    .lista-productos { flex: 1; padding: 40px; display: flex; flex-direction: column; gap: 20px; align-items: center; }
    .categoria-titulo { 
      width: 100%; max-width: 800px; margin-top: 30px; 
      border-left: 5px solid #f1c40f; padding-left: 15px; scroll-margin-top: 90px; 
    }
    .producto-fila {
      background: #fff; width: 100%; max-width: 800px; display: flex; align-items: center;
      padding: 15px; border-radius: 15px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); gap: 20px;
    }
    .producto-fila img { width: 100px; height: 100px; object-fit: cover; border-radius: 10px; background: #eee; }
    .info { flex: 1; }
    .btn { padding: 8px 16px; border: none; border-radius: 6px; cursor: pointer; font-weight: bold; }
    .btn-add { background: #2ecc71; color: white; }
    .btn-add:disabled { background: #ccc; cursor: not-allowed; }

    /* CARRITO DRAGGABLE */
    #carrito-flotante {
      position: fixed; bottom: 20px; right: 20px; width: 300px;
      background: white; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); z-index: 2000;
    }
    .carrito-header { background: #222; color: white; padding: 12px; border-radius: 15px 15px 0 0; cursor: move; display: flex; justify-content: space-between; }
    .carrito-body { max-height: 200px; overflow-y: auto; padding: 15px; font-size: 14px; }
    .item-carrito { display: flex; justify-content: space-between; margin-bottom: 8px; border-bottom: 1px solid #eee; padding-bottom: 5px; }
    .btn-pagar { width: 100%; padding: 12px; background: #f1c40f; border: none; font-weight: bold; border-radius: 0 0 15px 15px; cursor: not-allowed; }

    @media (max-width: 800px) {
      .main-container { flex-direction: column; }
      .sidebar-tipos { width: 100%; height: auto; position: relative; top: 0; }
      .header-verduras { padding-left: 80px; }
    }