#sidebar {
    width: 320px;
    background-color: var(--bg-secondary);
    height: 100vh;
    border-right: 1px solid var(--bg-tertiary);
    display: flex;
    flex-direction: column;
        transition: width var(--transition-normal);
        overflow: hidden;
    position: relative;     z-index: 1;        }

#sidebar.hidden {
    display: none;
}

#sidebar-closen {
    width: 52px;
    background-color: var(--bg-secondary);
    height: 100vh;
    border-right: 1px solid var(--bg-tertiary);
    display: flex;
    flex-direction: column;
        transition: width var(--transition-normal);
        overflow: hidden;
    position: relative;
    z-index: 1;
    align-items: center;
}

.sidebar-logo-closen{
    padding-top: var(--space-md);
}

.sidebar-header {
    padding: var(--space-sm) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-direction: column;
}

.sidebar-header-closen{
    padding: var(--space-md) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-direction: column;
}

.sidebar-logo-closen img{
    width: auto;
    height: 24px;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.sidebar-logo-closen svg{
    width: auto;
    height: 24px;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.sidebar-logo-closen svg:hover{
    background-color: var(--bg-tertiary);
}

.sidebar-btn {
    display: flex;
    align-items: center;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 600;
    width: 100%;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    margin: 6px 12px 0 6px;
    padding: var(--space-sm) 10px var(--space-sm) 10px;
}

.sidebar-btn-closen{
    display: flex;
    align-items: center;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 600;
    width: 100%;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    padding: var(--space-sm) 10px;
    margin-bottom: var(--space-xs);
}

.sidebar-btn:hover {
    background-color: var(--bg-tertiary);
}

.sidebar-btn svg {
    width: 20px;
    height: 20px;
    margin-right: var(--space-sm);
}

.sidebar-btn-closen:hover {
    background-color: var(--bg-tertiary);
}

.sidebar-btn-closen svg {
    width: 24px;
    height: 24px;
}

#chatList {
    flex: 1;
    overflow-y: auto;
    padding-bottom: var(--space-md);
    position: relative; }

#chatList {
    scroll-behavior: auto !important;  }

#chatList-closen {
    visibility: hidden;
}

.chat-list-header {
    padding: 0 var(--space-md);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xs);
    margin-top: var(--space-xs);
}

.chat-item {
    display: flex;
    align-items: center;
    height: 48px;
    padding: var(--space-sm) var(--space-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    border-radius: var(--radius-sm);
    margin: 0 var(--space-xs);
    position: relative;
    z-index: 1; }

.chat-item:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.chat-item:hover .chat-menu {
    opacity: 1;
    z-index: 2;
}

.chat-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 20px;
    flex: 1;
    margin-right: var(--space-sm);
}

.chat-title-input {
    background: transparent;
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 20px;
    padding: 2px 6px;
    width: 100%;
    outline: none;
}

.chat-menu {
    opacity: 0;
    transition: opacity var(--transition-fast);
    position: relative;
}

.chat-menu-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 3;
}

.chat-menu-btn svg {
    color: var(--text-primary);
}


.chat-menu-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

.chat-dropdown-item svg {
    width: 1em;
    height: 1em;
}

.chat-item:hover .chat-menu,
.chat-menu:has(.chat-dropdown.show) {
    opacity: 1;
}

.chat-dropdown {
    position: fixed;
    background-color: var(--bg-primary);
    border: 0.1em solid var(--bg-tertiary);
    border-radius: 0.5em;
    box-shadow: 0 0.5em 2em rgba(0, 0, 0, 0.3);
    z-index: 99999;
    min-width: 8em;
    max-width: 14em;
    width: max-content;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5em);
    transition: all 0.2s ease;
    overflow: hidden;
    backdrop-filter: blur(0.5em);
    font-size: 0.875em; }

.chat-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.chat-dropdown-item {
    display: flex;
    align-items: center;
    padding: 0.75em 1em;
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    font-size: 1em;
    border: none;
    background: none;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    text-align: left;
    white-space: nowrap;
    margin: 0;
    gap: 0.75em;
}

.chat-dropdown-item:hover {
    background-color: var(--bg-tertiary);
}

.chat-dropdown-item:first-child {
    border-top-left-radius: var(--radius-md);
    border-top-right-radius: var(--radius-md);
}

.chat-dropdown-item:last-child {
    border-bottom-left-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.chat-dropdown-item.delete {
    color: #ef4444;
}

.chat-dropdown-item.delete:hover {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.chat-dropdown-item svg {
    width: 1.25em;
    height: 1.25em;
    color: currentColor;
    flex-shrink: 0;
}

.chat-dropdown-item span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 1;
}

.chat-item.selected {
    background-color: var(--bg-tertiary);
}

.chat-item.editing {
    background-color: var(--bg-tertiary);
}

.chat-item.editing .chat-menu {
    opacity: 1;
}

.sidebar-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100000;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.2s ease, visibility 0.2s;
}

.sidebar-modal-overlay.show {
    visibility: visible;
    opacity: 1;
}

.sidebar-modal-dialog {
    background: var(--bg-primary);
    border: 1px solid var(--bg-tertiary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    max-width: 360px;
    width: 100%;
    box-shadow: 0 0.5em 2em rgba(0, 0, 0, 0.3);
}

.sidebar-modal-header {
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.2em 0.5em 0.5em !important;
    border-bottom: 1px solid var(--bg-tertiary);
    line-height: 1;
}

.sidebar-modal-title {
    margin: 0 !important;
    font-size: var(--font-size-lg);
    line-height: 1;
}

.sidebar-modal-body {
    padding: 0.8em 0.5em 0 0.5em !important;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    overflow-wrap: anywhere;
    word-wrap: break-word;
    word-break: break-word;
    white-space: normal !important;
}

.sidebar-btn-modal-cancel {
    background: var(--bg-tertiary);
}

.sidebar-btn-modal-confirm {
    background: var(--accent-alert);
}

.sidebar-modal-footer {
    display: flex !important;
    justify-content: flex-end !important;
    align-items: center;
    gap: var(--space-sm, 8px);
}

.sidebar-btn-modal-cancel,
.sidebar-btn-modal-confirm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm, 8px) var(--space-md, 16px);
    border: none;
    border-radius: var(--radius-md, 0.375rem);
    font-size: var(--font-size-md, 0.875rem);
    min-height: 36px;
    cursor: pointer;
    filter: brightness(1);
    transition: filter 0.15s ease, background-color 0.15s ease;
    color: var(--text-primary) !important;
    margin-right: 0.3em;
}

.sidebar-btn-modal-cancel:hover,
.sidebar-btn-modal-confirm:hover {
    filter: brightness(0.7);
}

.sidebar-btn-modal-close {
    color: var(--text-secondary);
    background: none;
    border: none;
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
}

.sidebar-btn-modal-close:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar-btn-modal-close svg {
    width: 1em;
    height: 1em;
    display: block;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    padding: var(--space-md) var(--space-md) 0 var(--space-md);
    justify-content: space-between;
}

.sidebar-logo img {
    width: auto;
    height: 24px;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.sidebar-logo img:hover {
    opacity: 0.8;
}

.sidebar-logo svg:hover {
    opacity: 0.8;
}

#chatSearchModalOverlay .modal-container {
    max-width: 600px;
}

#chatSearchResults {
    max-height: 380px;
    overflow-y: auto;
}

.chat-title {
    font-weight: 500;
}


.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100000;
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s ease;
}
.modal-overlay:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.chatgpt-modal {
    background: var(--bg-primary, #202123);
    color: var(--text-primary, #ececec);
    border: 1px solid var(--bg-tertiary, #3c3d3f);
    border-radius: 12px;
    max-width: 600px;
    width: 90%;
    box-shadow: 0 0 40px rgba(0,0,0,0.4);
    overflow: hidden;
    animation: scaleIn .2s ease;
}

@keyframes scaleIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    border-bottom: 1px solid var(--bg-tertiary, #3c3d3f);
}
.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.close-btn {
    border: none;
    background: none;
    color: var(--text-secondary, #aaa);
    padding: 6px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color .2s ease;
}
.close-btn:hover {
    background-color: rgba(255,255,255,0.1);
    color: #fff;
}

.search-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-secondary, #343541);
    border: 1px solid #565869;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
}
.search-input::placeholder {
    color: #aaa;
}

.search-results {
    max-height: 350px;
    overflow-y: auto;
    margin: 0 0 8px;
}
.chat-search-item {
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: background-color 0.2s ease;
    cursor: pointer;
}
.chat-search-item:hover {
    background-color: rgba(255,255,255,0.05);
}
.chat-search-item .chat-title {
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.chat-search-item .chat-date {
    font-size: 0.8rem;
    color: #aaa;
}

.search-loading,
.search-empty {
    text-align: center;
    padding: 12px;
    font-size: 0.9rem;
    color: #aaa;
}