.bg-blur {
    /* Path to your image */
    background: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.3)), url('mrail.webp') no-repeat center center fixed;
    background-size: cover;
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -1;
    top: 0;
    left: 0;
    filter: blur(8px);
}

.overlay-content {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 999;
    color: white;
    text-align: center;
}

h1 {
    font-size: 3em;
    font-weight: 700;
    /* add shadow */
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    margin-bottom: 0;
}