/* Sidebar */
.sidebar-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-width: 250px;
    max-width: 250px;
    overflow-y: auto;
    font-size: 14px;
    transition: min-width 0.3s ease, max-width 0.3s ease, width 0.3s ease;
    border-right: 1px solid var(--border-color);
    user-select: none;
    -webkit-user-select: none;
    /* Safari, Chrome, Opera, iOS Safari */
    -moz-user-select: none;
    /* Firefox */
    -ms-user-select: none;
    /* Internet Explorer/Edge */;
}
.sidebar-header {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    padding: 7px;
    position: sticky;
    top: 0;
    z-index: 1;
    background-color: var(--background);
}
.sidebar-header-left-button, .sidebar-header-right-button {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    min-width: 36px;
    border-radius: 8px;
}
.sidebar-header-left-button svg {
    height: var(--svg-size);
    width: var(--svg-size);
    color: var(--text-color);
}

.sidebar-header-icon {
    width: var(--svg-size);
    height: var(--svg-size);
    object-fit: contain;
}
.sidebar-header-right-button {
    cursor: w-resize;
}

@media (hover: hover) and (pointer: fine) {
    .sidebar-header-right-button:hover {
        cursor: pointer;
    }
}
.sidebar-header-right-button svg {
    fill: var(--text-color-tertiary);
}

.sidebar-mid {
    padding: 10px var(--sidebar-padding-left);
    position: sticky;
    top: var(--header-height);
    z-index: 1;
    background-color: var(--background);
}
.sidebar-element {
    position: relative;
    max-height: 36px;
    width: 100%;
    overflow: visible;
    opacity: 1;
    transition: max-height 0.25s ease, opacity 0.25s ease;
}
/* Keep chat row menus above chat composer controls and model-select layers. */
#history .sidebar-element > .select-dropdown,
#pinnedChats .sidebar-element > .select-dropdown,
.project-sidebar [data-section-list] .sidebar-element > .select-dropdown {
    --sidebar-chat-dropdown-closed-transform: translateY(-8px) scale(0.96);
    --sidebar-chat-dropdown-open-transform: translateY(0) scale(1);
    --sidebar-chat-dropdown-transform-origin: top left;
    position: fixed;
    display: flex;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: var(--sidebar-chat-dropdown-closed-transform);
    transform-origin: var(--sidebar-chat-dropdown-transform-origin);
    transition:
        opacity 0.16s ease,
        transform 0.18s cubic-bezier(0.2, 0.8, 0.2, 1),
        visibility 0s linear 0.18s;
    will-change: opacity, transform;
    z-index: 2100;
}

#history .sidebar-element > .select-dropdown.upward,
#pinnedChats .sidebar-element > .select-dropdown.upward,
.project-sidebar [data-section-list] .sidebar-element > .select-dropdown.upward {
    --sidebar-chat-dropdown-closed-transform: translateY(8px) scale(0.96);
    --sidebar-chat-dropdown-transform-origin: bottom left;
}

#history .sidebar-element > .select-dropdown.open,
#pinnedChats .sidebar-element > .select-dropdown.open,
.project-sidebar [data-section-list] .sidebar-element > .select-dropdown.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: var(--sidebar-chat-dropdown-open-transform);
    transition:
        opacity 0.16s ease,
        transform 0.18s cubic-bezier(0.2, 0.8, 0.2, 1),
        visibility 0s linear 0s;
}

#history .sidebar-element > .select-dropdown .select-submenu,
#pinnedChats .sidebar-element > .select-dropdown .select-submenu,
.project-sidebar [data-section-list] .sidebar-element > .select-dropdown .select-submenu {
    z-index: 2101;
}

@media (prefers-reduced-motion: reduce) {
    #history .sidebar-element > .select-dropdown,
    #pinnedChats .sidebar-element > .select-dropdown,
    .project-sidebar [data-section-list] .sidebar-element > .select-dropdown,
    #history .sidebar-element > .select-dropdown.open,
    #pinnedChats .sidebar-element > .select-dropdown.open,
    .project-sidebar [data-section-list] .sidebar-element > .select-dropdown.open {
        transition: none;
        transform: none;
    }
}

.sidebar-element-button {
    display: flex;
    align-items: center;
    width: 100%;
    height: 36px;
    gap: 8px;
    padding: 6px 8px;
    color: var(--text-color);
    border-radius: 8px;
}
.sidebar-element-button svg {
    min-height: var(--svg-size);
    min-width: var(--svg-size);
}
.chat-title-with-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}
.chat-title-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    color: var(--text-color-tertiary);
    line-height: 0;
}
.chat-title-badge svg {
    width: 14px;
    height: 14px;
}
.chat-title-text {
    display: block;
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.chat-unread-indicator {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 12px;
    height: 12px;
}
.chat-unread-dot {
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-color);
}
.sidebar-element-button p {
    overflow-x: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.sidebar-element-shorcut {
    color: var(--text-color-tertiary);
    font-size: 14px;
    margin-left: auto;
    white-space: nowrap;
    display: none;
}

.sidebar-quick-models {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 14px;
}

.sidebar-quick-models[hidden] {
    display: none;
}

.sidebar-quick-models-header {
    padding: 0 8px;
}

.sidebar-quick-models-header p {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--text-color-tertiary);
    text-transform: uppercase;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.sidebar-quick-models-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sidebar-quick-model {
    position: relative;
    display: block;
    width: 100%;
}

.sidebar-quick-model-button {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    min-width: 0;
    overflow: hidden;
    height: 34px;
    padding: 0 40px 0 8px;
    border-radius: 10px;
    color: var(--text-color);
    background: transparent;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar-quick-model-button:focus-visible {
    background: var(--hover);
    outline: none;
}

@media (hover: hover) and (pointer: fine) {
    .sidebar-quick-model-button:hover {
        background: var(--hover);
        outline: none;
    }
}

.sidebar-quick-model-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    min-height: 18px;
    color: var(--text-color);
    opacity: 0.9;
    flex-shrink: 0;
}

.sidebar-quick-model-icon svg {
    width: 18px;
    height: 18px;
}

.sidebar-quick-model-icon img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    display: block;
    border-radius: 6px;
}

.sidebar-quick-model-label {
    display: block;
    flex: 1 1 auto;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    text-align: left;
}

.sidebar-quick-model-unpin {
    position: absolute;
    top: 50%;
    right: 6px;
    transform: translateY(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    color: var(--primary-color);
    background: transparent;
    opacity: 0;
    transition: opacity 0.15s ease, background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
    pointer-events: none;
    z-index: 1;
}

.sidebar-quick-model-unpin svg {
    width: 14px;
    height: 14px;
    display: block;
}
.sidebar-quick-model:focus-within .sidebar-quick-model-unpin {
    opacity: 1;
    pointer-events: auto;
}

@media (hover: hover) and (pointer: fine) {
    .sidebar-quick-model:hover .sidebar-quick-model-unpin {
        opacity: 1;
        pointer-events: auto;
    }
}
@media (hover: none), (pointer: coarse) {
    .sidebar-quick-model .sidebar-quick-model-unpin {
        opacity: 1;
        pointer-events: auto;
    }
}

.sidebar-quick-model-unpin:focus-visible {
    opacity: 1;
    color: var(--primary-color);
    background: color-mix(in srgb, var(--primary-color) 10%, transparent);
    transform: translateY(-50%) scale(1.02);
    outline: none;
}

@media (hover: hover) and (pointer: fine) {
    .sidebar-quick-model-unpin:hover {
        opacity: 1;
        color: var(--primary-color);
        background: color-mix(in srgb, var(--primary-color) 10%, transparent);
        transform: translateY(-50%) scale(1.02);
        outline: none;
    }
}
@media (hover: none), (pointer: coarse) {
    .sidebar-quick-model-unpin {
        opacity: 1;
        transform: translateY(-50%) scale(1.02);
    }
}

.sidebar-container.sidebar-collapsing .sidebar-quick-models-header,
.sidebar-container.sidebar-collapsed .sidebar-quick-models-header,
.sidebar-container.sidebar-collapsed .sidebar-quick-model-label,
.sidebar-container.sidebar-collapsed .sidebar-quick-model-unpin {
    display: none;
}

.sidebar-container.sidebar-collapsing .sidebar-quick-models {
    margin-top: 10px;
}

.sidebar-container.sidebar-collapsed .sidebar-quick-models {
    gap: 6px;
    margin-top: 10px;
}

.sidebar-container.sidebar-collapsed .sidebar-quick-model-button {
    justify-content: center;
    height: 36px;
    padding: 6px 8px;
    border-radius: 8px;
}

.sidebar-container.sidebar-collapsed .sidebar-quick-model-icon {
    width: var(--svg-size);
    height: var(--svg-size);
    opacity: 1;
}

.sidebar-element-button.red svg {
    fill: var(--error-color);
}
.sidebar-element-button.red p {
    color: var(--error-color);
}
/* Ellipsis visibility: hidden by default; show on hover/focus; touch devices always visible */
.sidebar-element-menu-trigger {
    display: none;
    pointer-events: none;
    align-items: center;
    justify-content: center;
}

@media (hover: none), (pointer: coarse) {
    .sidebar-element-menu-trigger {
        display: inline-flex;
        pointer-events: auto;
    }
    .sidebar-quick-model-unpin {
        opacity: 1;
        pointer-events: auto;
    }
    .sidebar-element-button:active, .sidebar-element-button:focus {background-color: transparent;}

@media (hover: hover) and (pointer: fine) {
    .sidebar-element-button:hover {
        background-color: transparent;
    }
}
    .sidebar-element-button:active .sidebar-element-shorcut, .sidebar-element-button:focus .sidebar-element-shorcut {display: none;}

@media (hover: hover) and (pointer: fine) {
    .sidebar-element-button:hover .sidebar-element-shorcut {
        display: none;
    }
}
}

/* Inline rename */
.sidebar-element.inline-renaming .sidebar-element-menu-trigger {
    display: none !important;
}
.inline-rename-input {
    flex: 1;
    min-width: 0;
    font: inherit;
    font-size: 14px;
    color: var(--text-color);
    background: var(--bg-color-secondary, var(--bg-color));
    border: 1px solid var(--accent-color, #666);
    border-radius: 4px;
    padding: 2px 6px;
    outline: none;
    height: 24px;
    box-sizing: border-box;
}
.inline-rename-input:focus {
    border-color: var(--accent-color, #888);
    box-shadow: 0 0 0 1px var(--accent-color, #888);
}

.sidebar-main {
    flex: 1 1 auto;
    /* grow to take space between header and profile */
    overflow: visible;
    /* no internal scroll */
    padding: 0 var(--sidebar-padding-left)  var(--small-sidebar-width) 0;
    /* bottom padding ensures last chat not covered by profile */;
}
.sidebar-section {
    width: 100%;
    height: auto;
    padding-left: 7px;
}
.sidebar-section + .sidebar-section {
    margin-top: 20px;
}
.sidebar-section-button {
    display: none;
    width: 100%;
    height: 100%;
    cursor: e-resize;
}
.sidebar-section-header {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px;
    font-size: 14px;
    font-weight: 400;
    color: var(--text-color-tertiary);
}
.sidebar-section-header-right {
    display: none;
    align-items: center;
    justify-content: center;
    height: 19px;
    width: 19px;
    pointer-events: none;
    border-radius: 50%;
}

.chats-container {
    padding-right: var(--sidebar-padding-left);
}

.sidebar-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--sidebar-padding-left);
    height: var(--small-sidebar-width);
    position: sticky;
    bottom: 0;
    z-index: 1;
    background-color: var(--background);
}
.sidebar-profile-button {
    display: flex;
    align-items: center;
    height: 36px;
    width: 100%;
    border-radius: 8px;
    padding: 0px 5px 0px 5px;
    gap: 8px;
}

/* Keep the profile row stationary while setup resolves the avatar fallback. */
.sidebar-profile-avatar {
    position: relative;
    display: block;
    width: 26px;
    height: 26px;
    min-width: 26px;
    flex: 0 0 26px;
}

.sidebar-profile-button img {
    position: absolute;
    inset: 0;
    height: 26px;
    width: 26px;
    min-width: 26px;
    border-radius: 50%;
    font-size: 11px;
    object-fit: cover;
}

/* Stack the decoded image, initials fallback, and loading skeleton in one slot. */
.sidebar-profile-button .profile-initials {
    position: absolute;
    inset: 0;
    width: 26px;
    height: 26px;
    min-width: 26px;
    font-size: 11px;
}

.sidebar-profile-button img[hidden],
.sidebar-profile-button .profile-initials[hidden] {
    display: none !important;
}

.sidebar-profile-skeleton {
    display: block;
    background-color: var(--border-color);
    animation: skeleton-pulse 1.5s infinite ease-in-out;
    pointer-events: none;
}

.sidebar-profile-avatar-skeleton {
    position: absolute;
    inset: 0;
    width: 26px;
    height: 26px;
    border-radius: 50%;
}

.sidebar-profile-name-skeleton {
    width: 92px;
    height: 12px;
    max-width: calc(100% - 42px);
    border-radius: 6px;
}

.sidebar-profile-button p {
    overflow-x: hidden;
    white-space: nowrap;
    color: var(--text-color);
    text-overflow: ellipsis;
}

.sidebar-profile-dropdown {
    position:fixed;
    bottom: 50px;
    left: 7px;
    width: 234px;
    background-color: var(--background);
    z-index: 1100;
    border-radius: 16px;
    border: 1px solid rgba(13, 13, 13, 0.1);
    padding: 6px;
    box-shadow: 0 2px 4px var(--shadow-color);
    /* Animation defaults */
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: opacity 0.1s ease, transform 0.1s ease;
    user-select: none;
    -webkit-user-select: none;
    /* Safari, Chrome, Opera, iOS Safari */
    -moz-user-select: none;
    /* Firefox */
    -ms-user-select: none;
    /* Internet Explorer/Edge */;
}

/* Visible state */
.sidebar-profile-dropdown.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.sidebar-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity 0.3s ease;
    z-index: 1000;
}

.sidebar-backdrop.is-visible {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}
.sidebar-profile-dropdown-button {
    display: flex;
    align-items: center;
    height: 36px;
    width: 100%;
    border-radius: 10px;
    gap: 6px;
    padding: 6px 10px;
    color: var(--text-color);
}

.sidebar-profile-dropdown-button[hidden] {
    display: none;
}

.sidebar-profile-dropdown-button-red {
    color: rgb(206, 64, 53);
}

.sidebar-profile-dropdown-button svg {
    height: var(--svg-size);
    width: var(--svg-size);
}

.sidebar-profile-dropdown-button p {
    font-size: 14px;
}

.sidebar-profile-dropdown-divider {
    height: 1px;
    background: rgba(0, 0, 0, 0.08);
    margin: 6px 4px;
}

.sidebar-profile-accounts {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-account-summary {
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.035);
}

.sidebar-account-summary-name,
.sidebar-account-row-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-color);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-account-summary-email,
.sidebar-account-row-email,
.sidebar-account-manager-copy {
    font-size: 12px;
    color: var(--text-color-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-account-list,
.sidebar-account-manager {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-account-row,
.sidebar-account-manager-row {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 10px;
    border: 0;
    background: transparent;
    color: inherit;
    border-radius: 10px;
    text-align: left;
}

@media (hover: hover) and (pointer: fine) {
    .sidebar-account-row:hover, .sidebar-account-manager-row:hover, .sidebar-account-action:hover, .sidebar-account-add-button:hover {
        background: rgba(0, 0, 0, 0.05);
    }
}

.sidebar-account-row.active {
    background: rgba(0, 0, 0, 0.06);
}


.sidebar-account-main {
    min-width: 0;
    flex: 1;
}

.sidebar-account-badge {
    font-size: 11px;
    color: var(--text-color-secondary);
}

.sidebar-account-manager-title {
    font-size: 12px;
    color: var(--text-color-secondary);
    padding: 4px 10px 0;
}

.sidebar-account-manager-actions {
    display: flex;
    gap: 6px;
}

.sidebar-account-action {
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--text-color);
    font-size: 12px;
    padding: 6px 8px;
}

.sidebar-account-action--danger {
    color: rgb(206, 64, 53);
}

/* Sidebar section collapse styles */
.sidebar-section-header-right svg {
    transition: transform 0.2s ease;
}
.sidebar-section.collapsed .sidebar-section-header-right svg {
    transform: rotate(-90deg);
}
.sidebar-section.collapsed .sidebar-element {
    max-height: 0;
    opacity: 0;
    pointer-events: none;
}

/* Drag and Drop Styles */
.sidebar-element {
    transition: all 0.2s ease;
}

.sidebar-element.dragging {
    opacity: 0.5;
    transform: rotate(5deg);
    z-index: 1000;
}

.sidebar-element.drag-over {
    border-top: 2px solid var(--accent-color);
    margin-top: 2px;
    transform: translateY(-2px);
}

/* Visual feedback for drop zones */
.sidebar-section {
    position: relative;
}

.sidebar-section.drag-target::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(37, 99, 235, 0.05) 100%);
    border: 2px dashed var(--accent-color);
    border-radius: 8px;
    z-index: 100;
    pointer-events: none;
}

/* Improve dragging cursor */
.sidebar-element[draggable="true"] {
    cursor: grab;
}

.sidebar-element[draggable="true"]:active {
    cursor: grabbing;
}

@media (hover: hover) and (pointer: fine) {
    .sidebar-element:focus-within .sidebar-element-menu-trigger {display: inline-flex;
        pointer-events: auto;}.sidebar-element:hover .sidebar-element-menu-trigger {display: inline-flex;
        pointer-events: auto;}
    .sidebar-element:focus-within .chat-unread-indicator,
    .sidebar-element:hover .chat-unread-indicator {display: none;}
    .sidebar-section:hover .sidebar-section-header-right {display: flex;
        pointer-events: auto;}
    .sidebar-section-header-right:hover {cursor: pointer;
        background-color: var(--hover);
        border-radius: 50%;}
    .sidebar-profile-dropdown-button:hover {background-color: var(--hover);
        cursor: pointer;}   
    .sidebar-profile-dropdown-button-red:hover {background-color: var(--danger-hover-bg);}
    .sidebar-header-left-button:hover, .sidebar-header-right-button:hover, .sidebar-element-button:hover, .sidebar-profile-button:hover {background-color: var(--hover);}
    .sidebar-element-button.red:hover {background-color: var(--danger-hover-bg);}
    .sidebar-element:focus-within .sidebar-element-shorcut {display: flex;}.sidebar-element:hover .sidebar-element-shorcut {display: flex;}
}

/* ------------------------------------------------------------ */
/* Responsive Sidebar Styles                                    */
/* ------------------------------------------------------------ */

/* Overlay mode – toggled by JS based on .main-container width */
body.sidebar-overlay-mode .sidebar-container {
    position: fixed;
    left: 0;
    top: 0;
    height: 100%;
    z-index: 2200;
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    background-color: var(--background);

    /* Override JS inline styles for width when it's an overlay */
    min-width: 250px !important;
    max-width: 250px !important;
    width: 250px !important;

    /* Ensure content is always visible and scrollable */
    display: flex !important;
    overflow-y: auto !important;
}

body.sidebar-overlay-mode.sidebar-open .sidebar-container {
    transform: translateX(0);
    box-shadow: 4px 0 15px rgba(0,0,0,0.1);
}

body.sidebar-overlay-mode .sidebar-profile-dropdown {
    z-index: 2305;
}

/* Show the toggle button in the main header when in overlay mode */
body.sidebar-overlay-mode .main-container-header #mainContainerSidebarCloseButton {
    display: flex;
}

/* Ensure internal parts of sidebar are visible when overlay mode is active */
body.sidebar-overlay-mode .sidebar-main {
    display: block !important;
}
body.sidebar-overlay-mode .sidebar-header-right-button {
    display: flex !important;
    cursor: pointer !important;
}
body.sidebar-overlay-mode .sidebar-section-button {
    display: none !important;
}

body.sidebar-overlay-mode .sidebar-backdrop {
    display: block;
}

/* Show create-chat button in main header when in overlay mode */
body.sidebar-overlay-mode #mainHeaderCreateChatButton {
    display: flex;
}

/* Mobile full-width sidebar – stays viewport-based for smartphones */
@media (max-width: 500px) {
    body.sidebar-overlay-mode .sidebar-container {
        min-width: 100% !important;
        max-width: 100% !important;
        width: 100% !important;
        border-right: none;
        box-shadow: none;
    }

    .sidebar-profile-dropdown {
        width: calc(100% - var(--sidebar-padding-left) - var(--sidebar-padding-left));
    }
}

/* =========================== */
/* Lazy Loading Skeleton */
/* =========================== */
.sidebar-element-loading {
    cursor: default;
    pointer-events: none;
}

.sidebar-element-loading .skeleton-text {
    height: 14px;
    width: 70%;
    background-color: var(--border-color);
    border-radius: 4px;
    animation: skeleton-pulse 1.5s infinite ease-in-out;
    opacity: 0.5;
}

.chats-loading-sentinel {
    height: 1px;
    width: 100%;
    pointer-events: none;
}

/* =============================================
   Chat History Time Dividers
   ============================================= */
.chat-time-divider {
    padding: 18px 8px 4px;
    max-height: 40px;
    overflow: hidden;
    user-select: none;
    pointer-events: none;
    transition: max-height 0.25s ease, opacity 0.25s ease, padding 0.25s ease;
}

.chat-time-divider:first-child {
    padding-top: 6px;
}

.chat-time-divider-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-color-tertiary);
    letter-spacing: 0.015em;
}

/* Hide dividers when section is collapsed */
.sidebar-section.collapsed .chat-time-divider {
    max-height: 0;
    opacity: 0;
    padding: 0;
    margin: 0;
    overflow: hidden;
    pointer-events: none;
}