@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

        body {
            font-family: 'Press Start 2P', cursive;
            text-align: center;
            background: #1a1a2e;
            min-height: 100vh;
            margin: 0;
            padding: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            color: #fff;
            text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
        }

        h1 {
            color: #fff;
            margin-bottom: 30px;
            font-size: 2em;
            text-shadow: 0 0 20px rgba(255, 255, 255, 0.7);
            animation: glow 2s ease-in-out infinite alternate;
        }

        @keyframes glow {
            from {
                text-shadow: 0 0 10px rgba(255, 255, 255, 0.5), 0 0 20px rgba(255, 255, 255, 0.5);
            }
            to {
                text-shadow: 0 0 20px rgba(255, 255, 255, 0.7), 0 0 30px rgba(255, 255, 255, 0.7);
            }
        }

        .game-container {
            background: #16213e;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 149, 255, 0.3);
            border: 2px solid #0f3460;
            display: none;
        }

        .entry-page {
            background: #16213e;
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 149, 255, 0.3);
            border: 2px solid #0f3460;
            max-width: 500px;
            margin: 50px auto;
        }

        .mode-selection {
            margin: 30px 0;
        }

        .mode-btn {
            padding: 15px 30px;
            margin: 10px;
            font-size: 1em;
            border: 2px solid #0f3460;
            border-radius: 5px;
            cursor: pointer;
            background: #1a1a2e;
            color: #fff;
            transition: all 0.3s ease;
            font-family: 'Press Start 2P', cursive;
            text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
        }

        .mode-btn:hover {
            background: #0f3460;
            color: #fff;
            transform: scale(1.05);
            box-shadow: 0 0 20px rgba(0, 149, 255, 0.5);
        }

        .mode-btn.active {
            background: #0f3460;
            color: #fff;
        }

        .board {
            display: grid;
            grid-template-columns: repeat(3, 100px);
            grid-template-rows: repeat(3, 100px);
            gap: 10px;
            margin: 20px auto;
            width: 320px;
            background: #1a1a2e;
            padding: 10px;
            border-radius: 10px;
            border: 2px solid #0f3460;
        }

        .cell {
            width: 100px;
            height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5em;
            background: #16213e;
            cursor: pointer;
            border-radius: 5px;
            transition: all 0.3s ease;
            border: 2px solid #0f3460;
            color: #fff;
        }

        .cell:hover {
            background: #0f3460;
            color: #fff;
            transform: scale(0.95);
            box-shadow: 0 0 15px rgba(0, 149, 255, 0.5);
        }

        .cell.taken {
            cursor: not-allowed;
        }

        .message {
            font-size: 1.2em;
            margin: 20px 0;
            color: #fff;
            font-weight: bold;
            text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
            min-height: 2em;
        }

        .score-board {
            display: flex;
            justify-content: space-around;
            margin: 20px 0;
            padding: 15px;
            background: #16213e;
            border-radius: 10px;
            border: 2px solid #0f3460;
        }

        .score {
            padding: 10px 20px;
            color: #fff;
        }

        .reset-btn {
            margin-top: 20px;
            padding: 12px 30px;
            font-size: 1em;
            cursor: pointer;
            background: #1a1a2e;
            color: #fff;
            border: 2px solid #0f3460;
            border-radius: 5px;
            transition: all 0.3s ease;
            font-family: 'Press Start 2P', cursive;
        }

        .reset-btn:hover {
            background: #0f3460;
            color: #fff;
            transform: scale(1.05);
            box-shadow: 0 0 20px rgba(0, 149, 255, 0.5);
        }

        canvas {
            position: absolute;
            top: 0;
            left: 0;
            pointer-events: none;
            z-index: 10;
            width: 310px;
            height: 310px;
            margin: 20px auto;
        }

        .player-turn {
            font-size: 1em;
            color: #fff;
            margin: 10px 0;
            text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
        }

        .win-message {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: rgba(26, 26, 46, 0.95);
            padding: 30px;
            border-radius: 10px;
            border: 2px solid #0f3460;
            box-shadow: 0 0 30px rgba(0, 149, 255, 0.5);
            display: none;
            z-index: 100;
            animation: messageGlow 1s ease-in-out infinite alternate;
        }

        @keyframes messageGlow {
            from {
                box-shadow: 0 0 20px rgba(0, 149, 255, 0.3);
            }
            to {
                box-shadow: 0 0 40px rgba(0, 149, 255, 0.5);
            }
        }

        .win-message h2 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1.5em;
        }

        .win-message button {
            padding: 10px 20px;
            margin: 10px;
            font-size: 1em;
            cursor: pointer;
            background: #1a1a2e;
            color: #fff;
            border: 2px solid #0f3460;
            border-radius: 5px;
            transition: all 0.3s ease;
            font-family: 'Press Start 2P', cursive;
        }

        .win-message button:hover {
            background: #0f3460;
            color: #fff;
            transform: scale(1.05);
        }