Hi,
My team can convert HTML + CSS into Drupal and fulfill your need according to your requirements as you mentioned in your brief.
They have rich experience in this tools: Html, CSS, Bootstrap, JavaScript and Its frameworks and libraries, PHP and Its Frameworks and CMS's Like "WordPress, Shopify, PrestaShop, Joomla and WIX".
We are looking forward to delivering you quality work!
Best Regards,
Omer from BlakAces