countdown/count.html at main · rilwanubala/countdown · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Token Launch Countdown</title>
<style>
  body { margin: 0; font-family: system-ui, sans-serif; background: #0a0e27; color: #f1f5f9; display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 20px; }
  .container { background: #131a33; padding: 32px; border-radius: 20px; width: 100%; max-width: 600px; text-align: center; border: 1px solid #1e293b; }
  h1 { margin: 0 0 8px; font-size: 1.8rem; }
  .subtitle { color: #94a3b8; margin-bottom: 24px; }

  /* Countdown display */
  .countdown { display: flex; gap: 12px; justify-content: center; margin: 30px 0; flex-wrap: wrap; }
  .unit { background: #1e293b; padding: 20px 12px; border-radius: 12px; min-width: 80px; }
  .num { font-size: 3rem; font-weight: 700; line-height: 1; color: #3b82f6; }
  .label { font-size: 0.8rem; text-transform: uppercase; color: #94a3b8; margin-top: 4px; }
  .launched { font-size: 2.5rem; color: #22c55e; font-weight: 700; padding: 40px 0; }

  /* Date picker */
  .picker { margin: 20px 0; }
  input[type="datetime-local"] { padding: 10px; border-radius: 8px; border: 1px solid #334155; background: #0a0e27; color: #f1f5f9; font-size: 1rem; }

  /* Progress bar */
  .progress-bg { height: 8px; background: #1e293b; border-radius: 4px; overflow: hidden; margin: 24px 0; }
  .progress-fill { height: 100%; background: linear-gradient(90deg, #3b82f6, #22c55e); width: 0%; transition: width 1s linear; }

  /* Subscribe form */
  .subscribe { margin-top: 24px; padding-top: 24px; border-top: 1px solid #1e293b; }
  .subscribe input { padding: 12px; border-radius: 8px; border: 1px solid #334155; background: #0a0e27; color: #f1f5f9; width: 60%; margin-right: 8px; }
  .subscribe button { padding: 12px 20px; border: none; border-radius: 8px; background: #3b82f6; color: white; font-weight: 600; cursor: pointer; }
  .subscribe button:hover { background: #2563eb; }
</style>
</head>
<body>
<div class="container">
  <h1>Token Launch</h1>
  <div class="subtitle" id="targetDateDisplay">Set a target date below</div>

  <div class="picker">
    <input type="datetime-local" id="datePicker">
  </div>

  <div id="countdownDisplay" class="countdown">
    <div class="unit"><div class="num" id="days">00</div><div class="label">Days</div></div>
    <div class="unit"><div class="num" id="hours">00</div><div class="label">Hours</div></div>
    <div class="unit"><div class="num" id="minutes">00</div><div class="label">Minutes</div></div>
    <div class="unit"><div class="num" id="seconds">00</div><div class="label">Seconds</div></div>
  </div>

  <div class="progress-bg">
    <div class="progress-fill" id="progressBar"></div>
  </div>

  <div class="subscribe">
    <input type="email" id="emailInput" placeholder="Enter email for launch alerts">
    <button onclick="subscribe()">Subscribe</button>
  </div>
</div>

<script>
let targetDate = null;
let startTime = null;
let timer = null;

const daysEl = document.getElementById('days');
const hoursEl = document.getElementById('hours');
const minutesEl = document.getElementById('minutes');
const secondsEl = document.getElementById('seconds');
const countdownDisplay = document.getElementById('countdownDisplay');
const targetDateDisplay = document.getElementById('targetDateDisplay');
const progressBar = document.getElementById('progressBar');
const datePicker = document.getElementById('datePicker');

// Set default to 7 days from now for demo
datePicker.value = new Date(Date.now() + 7*24*60*60*1000).toISOString().slice(0,16);

datePicker.addEventListener('change', () => {
  targetDate = new Date(datePicker.value).getTime();
  startTime = Date.now();
  targetDateDisplay.textContent = `Launching: ${new Date(targetDate).toLocaleString()}`;

  if (timer) clearInterval(timer);
  timer = setInterval(updateCountdown, 1000);
  updateCountdown();
});

// Logic: calculate difference and convert ms to d/h/m/s
function updateCountdown() {
  const now = Date.now();
  const diff = targetDate - now;

  // Stop timer and show "Launched!" if time reaches zero
  if (diff <= 0) {
    clearInterval(timer);
    countdownDisplay.innerHTML = '<div class="launched">Launched! 🚀</div>';
    progressBar.style.width = '100%';
    return;
  }

  const days = Math.floor(diff / (1000 * 60 * 60 * 24));
  const hours = Math.floor((diff % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
  const minutes = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
  const seconds = Math.floor((diff % (1000 * 60)) / 1000);

  daysEl.textContent = String(days).padStart(2, '0');
  hoursEl.textContent = String(hours).padStart(2, '0');
  minutesEl.textContent = String(minutes).padStart(2, '0');
  secondsEl.textContent = String(seconds).padStart(2, '0');

  // Bonus: progress bar fills as time gets closer to zero
  const totalDuration = targetDate - startTime;
  const elapsed = now - startTime;
  const progress = Math.min((elapsed / totalDuration) * 100, 100);
  progressBar.style.width = progress + '%';
}

// Bonus: Subscribe form
function subscribe() {
  const emailInput = document.getElementById('emailInput');
  const email = emailInput.value.trim();

  if (!email || !email.includes('@')) {
    alert('Please enter a valid email');
    return;
  }

  console.log('Subscribed email:', email); // Simulates collecting email
  emailInput.value = '';
  alert('Subscribed! You\'ll get launch alerts.');
}
</script>
</body>
</html>