@font-face {
        font-family: 'Pony';
        src: url('Pony.ttf') format('truetype');
        font-weight: bold;
        font-style: normal;
    }
        body {
            font-family: 'Arial', sans-serif;
            background: linear-gradient(to bottom right, #e0f7fa, #b2ebf2);
            margin: 0;
            color: #333;
            padding-top: 5px;
            -webkit-touch-callout: none;
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            -o-user-select: none;
            user-select: none;
        }
        .container {
            background: #ffffff;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            width: 1200px;
            max-width: 90%;
            text-align: center;
            margin: 0 auto;
            box-sizing: border-box;
        }
        .school-info {
            font-size: clamp(18px, 5vw, 22px);
            color: #0000FF;
            font-weight: bold;
            margin-bottom: 0px;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
        }
        .school-info span {
            color: #0277bd;
        }
        h1 {
            color: #0288d1;
            font-size: clamp(24px, 5vw, 32px);
            margin-bottom: 0px;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
        }
        .teacher-info {
            font-size: clamp(18px, 5vw, 22px);
            color: #FF00FF;
            font-weight: bold;
            margin-bottom: 0px;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
        }
        .teacher-info span {
            color: #0277bd;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 20px;
        }
        th, td {
            border: 2px solid #4fc3f7;
            padding: 15px;
            text-align: left;
            font-size: clamp(16px, 4vw, 20px);
            box-sizing: border-box;
            min-height: 90px;
        }
        th:nth-child(1), td:nth-child(1),
        th:nth-child(3), td:nth-child(3),
        th:nth-child(5), td:nth-child(5) {
            border-right: none;
            width: auto;
            white-space: nowrap;
        }
        th:nth-child(2), td:nth-child(2),
        th:nth-child(4), td:nth-child(4),
        th:nth-child(6), td:nth-child(6) {
            border-left: none;
        }
        th, .month-cell {
            background: #b3e5fc;
            color: #FF3333;
            font-weight: bold;
        }
        .total {
            background: #0288d1;
            color: #fff;
            font-weight: bold;
            text-align: left;
        }
        .cell-content {
            display: flex;
            align-items: center;
            gap: 10px;
            justify-content: flex-start;
        }
        .star-btn {
            background: none;
            border: none;
            cursor: pointer;
            padding: 0;
            outline: none;
            display: inline-block;
        }
        .star-btn.disabled {
            cursor: not-allowed;
        }
        .star-btn.disabled img.star-off {
            display: none;
        }
        .star-btn img {
            width: clamp(50px, 10vw, 70px);
            height: clamp(50px, 10vw, 70px);
            transition: transform 0.3s ease;
            display: block;
        }
        .star-btn img:hover:not(.star-off) {
            transform: scale(1.2);
        }
        .star-btn.disabled img:hover {
            transform: none;
        }
        .star-btn img.active {
            filter: brightness(1.2);
        }
        .summary-text {
            color: #00EE00;
            font-size: clamp(16px, 4vw, 20px);
        }
        .summary-images {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 10px;
        }
        .summary-images img {
            width: clamp(70px, 10vw, 90px);
            height: clamp(70px, 10vw, 90px);
            border-radius: 5px;
            border: 2px solid #4fc3f7;
        }
        .star-count {
            color: yellow;
            font-size: clamp(24px, 4vw, 30px);
        }
        .star-text {
            color: yellow;
        }
        #progressPopup {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: rgba(0, 0, 0, 0.8);
            color: white;
            padding: 20px;
            border-radius: 8px;
            z-index: 1001;
            text-align: center;
            min-width: 250px;
        }
        #progressBar {
            width: 200px;
            height: 20px;
            background: #ddd;
            border-radius: 5px;
            overflow: hidden;
            margin: 10px auto;
        }
        #progressFill {
            height: 100%;
            background: #4caf50;
            width: 0%;
            transition: width 0.3s;
        }
        .settings-frame {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: #ffffff;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
            z-index: 1000;
            text-align: center;
        }
        .settings-frame h3 {
            margin: 0 0 15px;
            color: #0288d1;
            font-size: 20px;
        }
        .settings-frame input[type="password"] {
            padding: 10px;
            margin-bottom: 10px;
            width: 200px;
            border: 1px solid #4fc3f7;
            border-radius: 5px;
            font-size: 16px;
        }
        .settings-frame button {
            padding: 10px 20px;
            background: #0288d1;
            color: #fff;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
        }
        .settings-frame button:hover {
            background: #0277bd;
        }
        @media (max-width: 768px) {
            .settings-frame {
                width: 90%;
            }
            .settings-frame input[type="password"] {
                width: 100%;
                box-sizing: border-box;
            }
        }
        .class-points-btn {
            padding: 8px 16px;
            color: #FFFFFF !important;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
            transition: background-color 0.3s ease;
            text-decoration: none;
            display: none;
            align-items: center;
            justify-content: center;
            background: linear-gradient(45deg, #1976D2, #1E88E5);
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
            position: relative;
            padding: 8px 16px 8px 40px; /* Tăng padding-left để dành chỗ cho ngôi sao */
            font-weight: bold;
        }
        .class-points-btn::before {
            content: '⭐';
            position: absolute;
            left: 10px; /* Điều chỉnh vị trí ngôi sao */
            font-size: 18px;
            animation: twinkle 1.5s infinite;
        }
        .class-points-btn:hover {
            background: #1E88E5 !important;
            color: yellow !important;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
            transform: translateY(-2px);
        }
        .class-points-btn:hover::before {
            animation: twinkle 0.8s infinite; /* Tăng tốc độ nhấp nháy khi hover */
        }