Sideways brand colours

ink     #0b0e24   rgb(11, 14, 36)     Page background; text on amber
deep    #151a3d   rgb(21, 26, 61)     Raised surfaces: cards, fields, frames
line    #2a3166   rgb(42, 49, 102)    Hairline dividers (decorative only)
paper   #eceef8   rgb(236, 238, 248)  Headlines and body text
muted   #9ba1c9   rgb(155, 161, 201)  Secondary text
amber   #ffb13b   rgb(255, 177, 59)   The one accent: buttons, logo mark, prices
violet  #7b86ff   rgb(123, 134, 255)  Time and data: durations, 3D corridor

Fonts (free on Google Fonts)
Headings: Bricolage Grotesque, weight 800
Body:     Figtree, weights 400 and 600
Labels:   JetBrains Mono, weight 500
