/*AI-USE:ChatGPT
Purpose: Creating the CSS styles for the reaction game*/
        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            padding: 30px;
            background: #0b1020;
            color: white;
            font-family: Arial, sans-serif;
            display: flex;
            justify-content: center;
        }

        .container {
            width: 100%;
            max-width: 900px;
        }

        .screen {
            display: none;
        }

        .screen.active {
            display: block;
        }

        .panel {
            background: #121A33;
            padding: 24px;
            margin-bottom: 20px;
        }

        h1,
        h2 {
            margin-top: 0;
        }

        button {
            background: #2563eb;
            color: white;
            border: none;
            border-radius: 8px;
            padding: 12px 18px;
            cursor: pointer;
            font-size: 16px;
        }

        button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .hud {
            display: flex;
            justify-content: space-between;
            margin-bottom: 20px;
            background: #121A33;
            border-radius: 12px;
            padding: 16px;
        }

        .grid {
            display: grid;
            grid-template-columns: repeat(10, 60px);
            grid-template-rows: repeat(10, 60px);
            gap: 4px;
            justify-content: center;
        }

        .cell {
            width: 60px;
            height: 60px;
            background: #334155;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.1s;
        }

        .cell.good {
            background: #16a34a;
        }

        .cell.bad {
            background: #dc2626;
        }

        .score-row {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .top1 {
            color: gold;
            font-weight: bold;
        }

        .top2 {
            color: silver;
            font-weight: bold;
        }

        .top3 {
            color: #cd7f32;
            font-weight: bold;
        }

        .actions {
            display: flex;
            gap: 10px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        a {
            color: #60a5fa;
            text-decoration: none;
        }
/*AI-USE END*/