ヒートマップコンポーネント

<div class="min-h-screen bg-gray-100 dark:bg-gray-900 p-8 flex items-center justify-center">
  <div class="w-full max-w-4xl bg-white dark:bg-gray-800 rounded-lg shadow-xl overflow-hidden backdrop-filter backdrop-blur-lg bg-opacity-20 dark:bg-opacity-20 transform transition-all duration-300">
    <div class="p-6">
      <h2 class="text-2xl font-bold text-gray-800 dark:text-white mb-4">Activity Heatmap</h2>
      <div class="grid grid-cols-7 gap-1 text-center text-sm text-gray-600 dark:text-gray-300 mb-2">
        <span>Mon</span>
        <span>Tue</span>
        <span>Wed</span>
        <span>Thu</span>
        <span>Fri</span>
        <span>Sat</span>
        <span>Sun</span>
      </div>
      <div class="grid grid-cols-7 gap-1">
        <!-- Loop for weeks -->
        {[...Array(4)].map((_, weekIndex) => (
          // Loop for days
          [...Array(7)].map((_, dayIndex) => {
            const intensity = Math.floor(Math.random() * 5); // 0-4 for intensity
            const colors = [
              "bg-purple-200 dark:bg-purple-800",
              "bg-purple-300 dark:bg-purple-700",
              "bg-purple-400 dark:bg-purple-600",
              "bg-purple-500 dark:bg-purple-500",
              "bg-purple-600 dark:bg-purple-400"
            ];
            return (
              <div
                key={`${weekIndex}-${dayIndex}`}
                class={`h-8 w-full rounded-sm ${colors[intensity]} transform hover:scale-105 transition-transform duration-200 cursor-pointer`}
                title={`Day ${dayIndex + 1}, Week ${weekIndex + 1}: Intensity ${intensity}`}
              ></div>
            );
          })
        ))}
      </div>
      <div class="flex justify-between items-center mt-6 text-gray-600 dark:text-gray-300 text-sm">
        <span>Less</span>
        <div class="flex space-x-1">
          <div class="h-4 w-4 bg-purple-200 dark:bg-purple-800 rounded-sm"></div>
          <div class="h-4 w-4 bg-purple-300 dark:bg-purple-700 rounded-sm"></div>
          <div class="h-4 w-4 bg-purple-400 dark:bg-purple-600 rounded-sm"></div>
          <div class="h-4 w-4 bg-purple-500 dark:bg-purple-500 rounded-sm"></div>
          <div class="h-4 w-4 bg-purple-600 dark:bg-purple-400 rounded-sm"></div>
        </div>
        <span>More</span>
      </div>
    </div>
  </div>
</div>