const days = document.querySelector('#days');
const hours = document.querySelector('#hours');
const minutes = document.querySelector('#minutes');
const seconds = document.querySelector('#seconds');

const countdownDate = document.querySelector('.countdown-date').innerHTML;
const launchDate = new Date(countdownDate);

function updateCountdown() {
    const currentTime = new Date().getTime();
    const diff = launchDate - currentTime; // milliseconds

    const d = Math.floor(diff / (1000 * 60 * 60 * 24));
    const h = Math.floor((diff % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
    const m = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
    const s = Math.floor((diff % (1000 * 60)) / 1000);

    days.innerHTML = d;
    hours.innerHTML = h;
    minutes.innerHTML = m;
    seconds.innerHTML = s;
}

// Run every second
setInterval(updateCountdown, 1000);