Avenir Next, Maison Neue with Maison Neue Demi in action on semplice.com

.content-1 { font-family: "Avenir Next LT W01 Bold", sans-serif; font-size: 12px; font-style: normal; font-weight: normal; letter-spacing: 3.00001px; line-height: 32px; text-transform: none; color: #FFD300; }
.content-2 { font-family: AvenirNextLTW01-Regular, sans-serif; font-size: 20px; font-style: normal; font-weight: normal; letter-spacing: 0.4px; line-height: 32px; text-transform: none; color: #898989; }
.content-3 { font-family: "Maison Neue Bold", sans-serif; font-size: 52.9999px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 59px; text-transform: none; color: #FFFFFF; }
.content-4 { font-family: "Maison Neue Demi", sans-serif; font-size: 16px; font-style: normal; font-weight: normal; letter-spacing: 3px; line-height: 26.6668px; text-transform: none; color: #FCFCFC; }
Avenir Next is available from Fonts.com, Fontshop and MyFonts.

Maison Neue is available from Fontdeck.
Found by @mikesten on 7 Sep 2017.

Liked by:
@mikesten @realpoeticbeat

Avenir Next, Maison Neue with Maison Neue Demi