@layer utilities {
            .text-shadow {
                text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
            }
            .pool-watermark {
                position: relative;
            }
            .pool-watermark::after {
                content: "8 Ball Pool";
                position: absolute;
                top: 50%;
                left: 50%;
                transform: translate(-50%, -50%) rotate(-15deg);
                font-size: 2rem;
                color: rgba(255, 255, 255, 0.15);
                z-index: 10;
                pointer-events: none;
                font-weight: bold;
            }
            .card-hover {
                transition: all 0.3s ease;
            }
            .card-hover:hover {
                transform: translateY(-5px);
                box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
            }
            .btn-pulse {
                animation: pulse 2s infinite;
            }
            @keyframes pulse {
                0% {
                    box-shadow: 0 0 0 0 rgba(30, 58, 138, 0.7);
                }
                70% {
                    box-shadow: 0 0 0 10px rgba(30, 58, 138, 0);
                }
                100% {
                    box-shadow: 0 0 0 0 rgba(30, 58, 138, 0);
                }
            }
        }