body {
            background: linear-gradient(to bottom, #1a237e, #000);
            color: white;
            font-family: 'Helvetica', sans-serif;
            display: flex;
            flex-direction: column;
            align-items: center;
            min-height: 100vh;
            margin: 0;
            overflow: auto;
        }

        .float-container {
            width: 69%;
            max-width: 1200px;
            margin-top: 20px;
            overflow: hidden;
        }

        .instructions {
            font-size: 16px;
            color: #ffca28;
            float: none;
            margin: 0 auto;
            width: fit-content;
            text-align: center;
            padding: 10px;
        }

        #start-btn {
            padding: 10px 20px;
            font-size: 18px;
            background: #ffca28;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            float: right;
            position: absolute;
            top: 5px;
            right: 5px;
            z-index: 2;
            margin-right: 20px;
        }

        #start-btn:hover {
            background: #ffb300;
        }

        .hidden {
            display: none;
        }

        .game-container {
            display: flex;
            justify-content: space-between;
            width: 90%;
            max-width: 1200px;
            margin-top: 20px;
            gap: 20px;
        }

        .question-container {
            width: 30%;
            background: linear-gradient(45deg, #0d47a1, #1976d2);
            padding: 20px;
            border-radius: 15px;
            box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
            text-align: center;
            animation: fadeIn 1s ease-in;
        }

        .correct-answers {
            width: 30%;
            background: linear-gradient(45deg, #1b5e20, #4caf50);
            padding: 20px;
            border-radius: 15px;
            box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
            display: none;
            animation: fadeIn 1s ease-in;
        }

        .leaderboard {
            width: 30%;
            background: #212121;
            padding: 20px;
            border-radius: 15px;
            box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
            display: none;
        }

        .correct-answers.show {
            display: block;
        }

        .question {
            font-size: 20px;
            margin-bottom: 20px;
        }

        .autoplay-notice {
            font-size: 16px;
            color: #ffca28;
            margin-bottom: 10px;
        }

        .user-selection {
            font-size: 18px;
            margin-top: 10px;
            color: #4caf50;
        }

        .answers {
            list-style: none;
            padding: 0;
        }

        .answers li {
            background: #424242;
            margin: 10px 0;
            padding: 15px;
            border-radius: 10px;
            transition: all 0.3s ease;
        }

        .answers li.selected {
            background: #0288d1;
            box-shadow: 0 0 10px #0288d1;
        }

        .leaderboard table {
            width: 100%;
            border-collapse: collapse;
        }

        .leaderboard th, .leaderboard td {
            padding: 10px;
            text-align: left;
            border-bottom: 1px solid #424242;
        }

        .leaderboard th {
            background: #0288d1;
        }

        .leaderboard .winner {
            background: #ffca28;
            color: #000;
            font-weight: bold;
            animation: pulse 0.5s infinite alternate;
        }

        .leaderboard .correct {
            background: #4caf50;
            color: #000;
        }

        .leaderboard .incorrect {
            background: #f44336;
            color: #fff;
        }

        #timer {
            font-size: 20px;
            margin-top: 10px;
        }

        #submit-btn {
            padding: 10px 20px;
            font-size: 18px;
            background: #ffca28;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            margin: 10px;
        }

        #submit-btn:hover {
            background: #ffb300;
        }

        #submit-btn:disabled {
            background: #757575;
            cursor: not-allowed;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: scale(0.8); }
            to { opacity: 1; transform: scale(1); }
        }

        @keyframes pulse {
            from { transform: scale(1); }
            to { transform: scale(1.05); }
        }