.main-nav-container.fixed-header .inner {
    transform: translate3d(0, 0, 0);
    background: #e9e0ca;
}
.bg-white {
    --tw-bg-opacity: 1;
    background-color: rgb(232 222 199);
}
.store-footer__inner {
    border-color: currentColor;
    border-color: initial;
    background: #e8dec7;
}
.contact-links a {
    min-width: 3.5rem;
    border-radius: .375rem;
    background-color: rgb(38 132 151);
    --tw-bg-opacity: 0.5;
    padding: .5rem;
}
.text-gray-400 {
    --tw-text-opacity: 1;
    color: #303030;
}
<div id="countdown"></div>

<script>
  function startCountdown() {
    let startTime = localStorage.getItem('startTime');
    if (!startTime) {
      startTime = Date.now();
      localStorage.setItem('startTime', startTime);
    }

    let timeRemaining = (6 * 60 * 60) - Math.floor((Date.now() - startTime) / 1000);

    let countdownInterval = setInterval(function() {
      let hours = Math.floor(timeRemaining / 3600);
      let minutes = Math.floor((timeRemaining % 3600) / 60);
      let seconds = timeRemaining % 60;

      let countdownText = ${hours.toString().padStart(2, '0')}:${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')};

      document.getElementById('countdown').innerText = countdownText;

      timeRemaining--;

      if (timeRemaining < 0) {
        clearInterval(countdownInterval);
        document.getElementById('countdown').innerText = "انتهى العرض!";
      }
    }, 1000);
  }

  startCountdown(); // بدء العداد مباشرة
</script>