/* Transition container */
.transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8); /* Darker overlay for more emphasis */
    z-index: 2;
    pointer-events: none;
    transform-origin: bottom;
    transition: transform 0.75s ease, background-color 0.75s ease;
}

/* Initial hidden state for the overlay */
.transition-overlay.hidden {
    transform: scaleY(0);
    background-color: rgba(0, 0, 0, 0); /* Fade out background */
}

/* Transition effect when entering */
.transition-overlay.entering {
    transform: scaleY(1);
    background-color: rgba(0, 0, 0, 0.8); /* Solid background on transition */
}

/* Transition effect when exiting */
.transition-overlay.exiting {
    transform: scaleY(0);
    background-color: rgba(0, 0, 0, 0); /* Fade out background */
}

/* Add an animation for a loading spinner */
.loading-spinner {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 5px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top: 5px solid rgba(0, 0, 0, 0.8);
    animation: spin 1s linear infinite;
    z-index: 2;
    pointer-events: none;
}

/* Spinner animation */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Optional gradient overlay effect */
.gradient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(45deg, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.4));
    transform-origin: bottom;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.75s ease, transform 0.75s ease;
    pointer-events: none;
}

.gradient-overlay.show {
    opacity: 1;
    transform: scaleY(1);
}

.gradient-overlay.hidden {
    opacity: 0;
    transform: scaleY(0);
}