Modern Checkmark Next Button Design

I need a single “Next” button for a multi-step form. When the user clicks it, the form should submit and move to the following step. Visually, I’m after a clean, modern look that blends flat colours with a subtle micro-interaction: a smooth hover state and a gentle press animation. The button must feature a checkmark icon—no arrows or custom artwork—so the user instantly recognises successful progression.

Please provide:
• Final assets (SVG/PNG for the checkmark and any supporting images)
• A compact HTML/CSS snippet showing the button in action, including hover and active states
• Brief notes on any fonts or colour values used so I can match the rest of the interface

Keep the code lightweight, standards-compliant, and ready to drop into a Bootstrap-based layout.