This neon glow first birthday invitation turns the card into a lit sign board: a candy-striped tube numeral blazes at the centre of a deep navy wall while curly streamers and confetti drift at the edges. The page keeps the same theatre end to end — the honoree name ignites like glass neon, the countdown hangs from a string of chasing festival bulbs, and the RSVP block is the moment the whole sign powers on, lamps lighting in sequence before the row floods to full glow. Every practical detail a guest needs is here: the date and time, the venue with a live map and one-tap directions, the host's note, dress code and parking when the host adds them, and a reply-by reminder beside the RSVP button. Hosts personalise every line — name, age, date, venue, message — from the same template, and the page re-themes itself around their own card art. It suits a first birthday with a glow party, arcade or playhouse theme: loud, bright and joyful on phones first, with a fixed neon nav rail so guests can jump between the sign, the countdown, the map and the RSVP. Built for sharing as a single link, it loads fast, respects reduced-motion settings, and keeps the countdown ticking live until the party starts. If the celebration calls for neon — glow sticks, blacklight, a dance floor for toddlers — this is the invitation that already feels like the room.