body, html {
    height: 100%;
    margin: 0;
    font-family: Arial, sans-serif;
}

.navbar {
    background-color: transparent !important;
    padding: 1rem;
}

.navbar .navbar-brand, .navbar .navbar-nav .nav-link {
    color: white;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-shadow: 2px 2px 4px #000;
    color: white;
}

.overlay h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: flash 2s linear forwards;
}

.overlay p {
    font-size: 1.5rem;
    animation: flash 2s linear forwards;
    animation-delay: 1s;
}

@keyframes flash {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}