Odoo v9 on Windows 7 64bit and I cannot make PDF reports use CSS styles.

So far i've tried:

• Different versions of wkhtmltopdf (32bit/64bit)

• Setting System Parameters
  'web.base.url' to 'http://localhost:8069'
  

  'web.base.url.freeze' to 'True'
  

  'report.url' to 'http://localhost:8069'

• Using absolute/relative path css:
  

  <link href="http://localhost:8069/cds/static/src/css/cds_report.css" rel="stylesheet"/>

•  Using internal CSS:
  

  <style> body { font-family: calibri; } </style>

The only thing that worked is setting the style inline:

<div style="...">

I am kinda lost by now. This is report template example:

<template id="cds2_invoice">
 <t t-call="report.html_container">
 <t t-foreach="docs" t-as="o">
 <t t-call="cds2.cds2_invoice_document" t-lang="o.partner_id.lang" />
 </t>
 </t>
 </template>

 <template id="cds2_invoice_document">
 <style>
 .colored {
 background-color: #4D4D73; 
 color:#FFF;
 padding:0;
 min-height:10px;
 }
 </style>
 <div class="page">
 <div class="row">
 <div class="colored">
 <span>ASD</span>
 </div>
 </div>
 </div>
    </template>