interstellar_ai/app/styles/container.css

/* container.css */
.container,
.content {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    position: relative; /* Ensure relative positioning for proper transitions */
}

.left-panel {
    margin-top: 5em;
    width: 25vw; /* Adjust as needed */
    transition: width 0.3s ease, opacity 0.3s ease, visibility 0.3s ease; /* Smooth transitions for all properties */
    background-color: var(--left-panel-background-color); /* Use variable for background color */
    border-radius: 0 1em 0 0;
    margin-left: 0;
    padding-right: 1em;
}

.left-panel.hidden {
    opacity: 0; /* Fade out when hidden */
    width: 0; /* Collapse width to 0 */
    visibility: hidden; /* Hide visibility while collapsing */
}

.conversation-container {
    margin-top: 5em;
    flex: 1;
    transition: margin-left 0.3s ease; /* Smooth margin adjustment */
    background-color: var(--conversation-background-color); /* Use variable for background color */
    border-radius: 1em 0 0 0;
}

/* Adjust margin-left when panel is shown or hidden */
.conversation-container.expanded {
    margin-left: 1vw;
}

.conversation-container.collapsed {
    margin-left: 1vw; /* Space for the left panel */
}