body {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            margin: 0;
            padding: 20px;
            box-sizing: border-box;
        }
        .question-text {
            font-size: 1.75rem; /* Larger font size */
            font-weight: 700; /* Bold */
            
            margin-bottom: 1.5rem;
        }
        .options-grid {
            display: grid;
            grid-template-columns: 1fr; /* Single column on small screens */
            gap: 1rem; /* Space between buttons */
        }
        @media (min-width: 640px) { /* sm breakpoint */
            .options-grid {
                grid-template-columns: repeat(2, 1fr); /* Two columns on larger screens */
            }
        }
        .option-button {
            background-color: #e2e8f0; /* Light gray button */
            
            padding: 1rem 1.5rem;
            border-radius: 0.75rem; /* Rounded corners for buttons */
            font-size: 1.125rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease-in-out;
            border: 2px solid transparent; /* For selected state */
        }
        .option-button:hover:not(.selected):not(.correct):not(.incorrect) {
            background-color: #cbd5e0; /* Darker on hover */
        }
        .option-button.selected {
            border-color: #4299e1; /* Blue border when selected */
            background-color: #ebf8ff; /* Light blue background */
        }
        .option-button.correct {
            background-color: #9ae6b4; /* Green for correct answer */
            border-color: #38a169;
            color: #276749;
        }
        .option-button.incorrect {
            background-color: #feb2b2; /* Red for incorrect answer */
            border-color: #e53e3e;
            color: #9b2c2c;
        }
        .next-button {
            color: #ffffff;
            padding: 1rem 2rem;
            border-radius: 0.75rem;
            font-size: 1.25rem;
            font-weight: 700;
            cursor: pointer;
            transition: background-color 0.2s ease-in-out;
            margin-top: 1.5rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        }
        .next-button:hover {
            background-color: #f66151; /* Darker blue on hover */
        }
        .score-display {
            font-size: 1.5rem;
            font-weight: 700;
            
            margin-top: 1rem;
        }
        .restart-button {
            color: #ffffff;
            padding: 1rem 2rem;
            border-radius: 0.75rem;
            font-size: 1.25rem;
            font-weight: 700;
            cursor: pointer;
            transition: background-color 0.2s ease-in-out;
            margin-top: 1.5rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        }
        .restart-button:hover {
            background-color: #f66151; /* Darker orange on hover */
        }
        .team-select-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); /* Responsive grid for teams */
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .team-button {
            color: #ffffff;
            padding: 1rem 1.5rem;
            border-radius: 0.75rem;
            font-size: 1.125rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.2s ease-in-out;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        }
        .team-button:hover {
            background-color: #f66151; /* Darker blue on hover */
        }
        .hidden {
            display: none;
        }