* {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            padding: 30px;
            font-family: Arial, sans-serif;
            background: #111827;
            color: #f9fafb;
            text-align: center;
            margin-top: 100px;
        }

        main {
            max-width: 1000px;
            margin: 0 auto;
        }

        h1 {
            font-size: 28px;
            margin-bottom: 8px;
        }

        p {
            color: #9ca3af;
        }

        .chart {
            margin-top: 25px;
            padding: 15px;
            background: #1f2937;
            border-radius: 12px;
        }

        footer {
            margin-top: 20px;
            font-size: 13px;
            color: #9ca3af;
        }


        #date {
            font-size: 24px;
        }

        #clock {
            font-size: 48px;
            font-weight: bold;
            font-variant-numeric: tabular-nums;
        }