Modern and minimalist cinema seat configurator interface. Clean web UI with a right side panel taking one-third of the screen. The panel includes a step-by-step process with 3 steps: 1) Select seat fabric and armrests — with colored material swatches and armrest style buttons; 2) Select seating layout — simple buttons to choose seat arrangements; 3) Quote request form — clean form with input fields for name, email, and message. At the bottom of the side panel: 3 small dots as step indicators centered, and a large 'Next' button on the bottom-right, which turns into 'Send' on the last step. White background, elegant typography, soft shadows, rounded elements, clean spacing, professional modern style, UI design for a premium configurator app.