* {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: Arial, sans-serif;
        }

        body {
            background-color: #0d1a3c;
            color: #fff;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 10px;
        }

        .container {
            width: 100%;
            max-width: 500px;
            margin-bottom: 20px;
            background-color: #1e2a4a;
            border-radius: 10px;
            padding: 15px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
        }

        .top-container {
            text-align: center;
        }

        .period-number {
            font-size: 20px;
            color: #f0a500;
            margin-bottom: 10px;
        }

        .result-box-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-top: 10px;
        }

        .result-box {
            font-size: 16px;
            font-weight: bold;
            padding: 12px;
            background-color: #243b60;
            border-radius: 8px;
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
            text-align: center;
            width: 100%;
            margin-bottom: 10px;
        }

        .refresh-button {
            padding: 10px;
            background-color: #f0a500;
            color: #0d1a3c;
            font-weight: bold;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
            width: 100%;
        }

        .refresh-button:hover {
            background-color: #e39500;
        }

        .history-container {
            margin-top: 20px;
        }

        .history-title {
            font-size: 18px;
            color: #f0a500;
            text-align: center;
            margin-bottom: 10px;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            background-color: #1a243a;
            border-radius: 10px;
            overflow: hidden;
        }

        th, td {
            padding: 8px;
            text-align: center;
            font-size: 14px;
        }

        th {
            background-color: #26344e;
            color: #f0a500;
        }

        tr:nth-child(even) {
            background-color: #202d44;
        }

        tr:nth-child(odd) {
            background-color: #182536;
        }

        tr:hover {
            background-color: #3b4861;
        }

        @media (max-width: 768px) {
            .container {
                width: 95%;
            }

            .period-number {
                font-size: 18px;
            }

            .result-box {
                font-size: 14px;
                padding: 10px;
            }

            .refresh-button {
                padding: 8px;
                font-size: 14px;
            }

            th, td {
                font-size: 12px;
                padding: 6px;
            }
        }