body,
html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #000;
}

canvas {
    display: block;
    width: 100vw;
    height: 100vh;
    position: absolute;
    top: 0;
    left: 0;
}

#portal-container {
    position: relative;
    width: 100vw;
    height: 100vh;
}

.transition-overlay {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    color: #00ffff;
    font-family: 'Inter', sans-serif;
    font-size: 1.2rem;
    letter-spacing: 0.2rem;
    text-transform: uppercase;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    z-index: 10;
    pointer-events: none;
    opacity: 0.8;
    animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.4;
        transform: translateX(-50%) scale(1);
    }

    50% {
        opacity: 1;
        transform: translateX(-50%) scale(1.05);
    }
}