Saudi Arabia has said Wednesday will be a national holiday as, on the Jeddah Corniche by the Red Sea, in the heart of the capital Riyadh and in towns and villages across the country, its seismic 2-1 World Cup win over Lionel Messi’s Argentina was celebrated as a coming of age.

Saudi Arabia  players celebrates their win against Argentina

The national football side’s remarkable victory was being seen as both a triumph on the pitch and a huge moment on the global sports stage, where the regional power has long sought a place in the spotlight.

Outsiders against an Argentine team on a 36-match winning streak surely delivered that and, on Tuesday afternoon and evening, it was all that mattered to Saudi leaders and the fans who circled public squares in convoys of cars, waving the country’s green flag and proclaiming a new era of international football.

The public holiday will be for all state employees “and the private sector, and male and female students in all educational stages”, the government announced on Tuesday evening.

“We are so happy about the result. It was an exceptional match from our falcons,” said Ghassan Alwan, 42, marketing director at the Saudi ministry of housing. “Our faith in our players was in the right place. We wrote history tonight.”

“Incredible, massive, amazing, fantastic,” added Abdulrahman Abed, a sports editor. “Congratulations to everyone. This means a lot to every Saudi. This will give a huge boost to every Arabic team in the World Cup.”

Euphoria reached the inner circle of Crown Prince Mohammed bin Salman, who was pictured embracing his brothers after the full-time whistle, as well as sports cafes and public parks across the country.

Universities were given the afternoon off for students to watch the game. City streets were almost abandoned. Women joined men in many cafes and restaurants – a new phenomenon in the desert kingdom – to take in the most unlikely of victories.

“What an amazing win for the Saudi national team,” said Adel Al-Akeely, a Riyadh doctor. “There’s a lot that’s been changing in our country, many new achievements and an ambitious drive to become the best that we can be. Moments like this materialise these changes and remind you of how proud we are of our youth.

Saudis have long bristled at the notion that a love of sports and a keenness to attract global events amounted to image laundering, with many sports fans insisting that they too wanted to experience international competition and pitch their national teams into the mix.

Ahead of the match, Prince Mohammed told the national team: “All I want to tell you is stay relaxed, play your game and do your thing.” Few believed that this was just another game, however. In a country battered by criticism over human rights and geopolitical positions, this was a nation-building moment, a chance to turn a political tide.

After full-time, regional rivals embraced the Saudi win. Dubai’s ruler, Sheikh Mohammed bin Rashid al-Maktoum, tweeted congratulations. Qatar’s emir, Sheikh Tamim bin Hamad al-Thani, meanwhile, briefly draped himself in the Saudi flag – an image that put to rest five years of enmity in the lead-up to the World Cup, in which Prince Mohammed had boycotted Qatar and severed ties.

That row is now firmly over and the Saudi victory was being received around the region as an achievement the Arab world could swing in behind. In South America, though, the reaction was markedly different.

There was shock and despair in Argentina as the final whistle went nearly 14,000km away in Qatar. The Argentinian football magazine Olé lamented what it called “a world-wide whammy”.

The newspaper Clarín said Argentina’s players had suffered “a historic walloping” after becoming “entangled in Saudi Arabia’s spider’s web”