/* ==================== Container ==================== */
.flexlayout-dock-container {
    width: 100%;
    height: 100%;
    background: #1a1a1a;
    position: relative;
}

.flexlayout__layout {
    background: #1a1a1a;
    position: absolute !important;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

/* ==================== Tabset (Panel Container) ==================== */
.flexlayout__tabset {
    background: #242424;
    border-radius: 0;
}

.flexlayout__tabset-selected {
    background: #242424;
}

.flexlayout__tabset_header {
    background: #2a2a2a;
    border-bottom: 1px solid #1a1a1a;
    height: 26px;
    min-height: 26px;
}

.flexlayout__tabset_tabbar_outer {
    background: #2a2a2a;
}

/* ==================== Tab Buttons ==================== */
.flexlayout__tab {
    background: transparent;
    color: #888888;
    border: none;
    padding: 0 12px;
    height: 26px;
    line-height: 26px;
    cursor: default;
    transition: color 0.1s ease;
    font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    font-size: 11px;
    position: relative;
}

.flexlayout__tab:hover {
    color: #cccccc;
    background: transparent;
}

.flexlayout__tab::after {
    display: none;
}

.flexlayout__tab_button {
    background: transparent !important;
    color: #888888;
    border: none !important;
    border-right: none !important;
    padding: 0 12px;
    height: 26px;
    cursor: pointer;
    transition: color 0.1s ease;
    position: relative;
    font-size: 11px;
}

.flexlayout__tab_button::after {
    display: none;
}

.flexlayout__tab_button:hover {
    background: transparent !important;
    color: #cccccc;
}

.flexlayout__tab_button--selected {
    background: transparent !important;
    color: #ffffff !important;
    border-bottom: none !important;
}

.flexlayout__tab_button_leading {
    display: flex;
    align-items: center;
    gap: 6px;
}

.flexlayout__tab_button_content {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 140px;
    font-size: 11px;
    font-weight: 400;
}

.flexlayout__tab_button--selected .flexlayout__tab_button_content {
    font-weight: 400;
}

/* Tab close button */
.flexlayout__tab_button_trailing {
    margin-left: 6px;
    opacity: 0;
    transition: opacity 0.1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
    border-radius: 2px;
}

.flexlayout__tab_button:hover .flexlayout__tab_button_trailing {
    opacity: 0.6;
}

.flexlayout__tab_button_trailing:hover {
    opacity: 1 !important;
    background: rgba(255, 255, 255, 0.1);
}

.flexlayout__tab_button_trailing svg {
    width: 10px;
    height: 10px;
    color: #999999;
}

.flexlayout__tab_button_trailing:hover svg {
    color: #ffffff;
}

/* ==================== Splitter (Divider between panels) ==================== */
.flexlayout__splitter {
    background: #1a1a1a !important;
    transition: background 0.15s ease;
}

.flexlayout__splitter:hover {
    background: #4a9eff !important;
}

.flexlayout__splitter_horz {
    cursor: row-resize !important;
}

.flexlayout__splitter_vert {
    cursor: col-resize !important;
}

.flexlayout__splitter_border {
    background: #1a1a1a !important;
}

/* ==================== Panel Content ==================== */
.flexlayout__tabset_content {
    background: #242424;
    overflow: auto;
}

.flexlayout__tabset_content * {
    cursor: default !important;
}

.flexlayout__tabset_content button,
.flexlayout__tabset_content a,
.flexlayout__tabset_content [role="button"],
.flexlayout__tabset_content input,
.flexlayout__tabset_content select,
.flexlayout__tabset_content textarea {
    cursor: pointer !important;
}

/* ==================== Drag & Drop ==================== */
.flexlayout__outline_rect {
    border: 1px solid #4a9eff;
    box-shadow: 0 0 12px rgba(74, 158, 255, 0.3);
    background: rgba(74, 158, 255, 0.08);
    border-radius: 2px;
}

.flexlayout__edge_rect {
    background: rgba(74, 158, 255, 0.15);
    border: 1px solid #4a9eff;
}

.flexlayout__drag_rect {
    border: 1px solid #4a9eff;
    background: rgba(74, 158, 255, 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border-radius: 2px;
}

/* ==================== Tab Toolbar ==================== */
.flexlayout__tab_toolbar {
    display: flex !important;
    align-items: center;
    gap: 2px;
    padding: 0 4px;
    visibility: visible !important;
    opacity: 1 !important;
}

.flexlayout__tab_toolbar_button {
    background: transparent;
    border: none;
    color: #666666;
    cursor: pointer;
    padding: 3px;
    border-radius: 2px;
    transition: all 0.1s ease;
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
}

.flexlayout__tab_toolbar_button:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #cccccc;
}

.flexlayout__tab_toolbar_button svg {
    width: 12px;
    height: 12px;
}

.flexlayout__tab_toolbar_button-min,
.flexlayout__tab_toolbar_button-max {
    display: flex !important;
    visibility: visible !important;
}

/* Maximized tabset styling */
.flexlayout__tabset_maximized .flexlayout__tab_toolbar_button-max {
    color: #4a9eff;
}

.flexlayout__tabset_maximized .flexlayout__tab_toolbar_button-max:hover {
    background: rgba(74, 158, 255, 0.2);
    color: #ffffff;
}

/* ==================== Popup Menu ==================== */
.flexlayout__popup_menu {
    background: #2d2d2d;
    border: 1px solid #3a3a3a;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    border-radius: 4px;
    padding: 4px 0;
}

.flexlayout__popup_menu_item {
    color: #cccccc;
    padding: 6px 12px;
    cursor: pointer;
    transition: background 0.1s ease;
    font-size: 11px;
}

.flexlayout__popup_menu_item:hover {
    background: #3a3a3a;
    color: #ffffff;
}

.flexlayout__popup_menu_item:active {
    background: #4a9eff;
}

/* ==================== Border Panels ==================== */
.flexlayout__border {
    background: #242424;
    border: none;
}

.flexlayout__border_top,
.flexlayout__border_bottom {
    border-left: none;
    border-right: none;
}

.flexlayout__border_left,
.flexlayout__border_right {
    border-top: none;
    border-bottom: none;
}

.flexlayout__border_button {
    background: transparent;
    color: #888888;
    border: none;
    border-bottom: none;
    padding: 6px 10px;
    cursor: pointer;
    transition: color 0.1s ease;
    position: relative;
    font-size: 11px;
}

.flexlayout__border_button::after {
    display: none;
}

.flexlayout__border_button:hover {
    background: transparent;
    color: #cccccc;
}

.flexlayout__border_button--selected {
    background: transparent;
    color: #ffffff;
}

/* ==================== Error Boundary ==================== */
.flexlayout__error_boundary_container {
    background: #242424;
    color: #f48771;
    padding: 16px;
    font-family: monospace;
}

.flexlayout__error_boundary_message {
    margin-bottom: 8px;
    font-weight: 600;
}

/* ==================== Scrollbar ==================== */
.flexlayout__tabset_content::-webkit-scrollbar,
.flexlayout__tab_moveable::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.flexlayout__tabset_content::-webkit-scrollbar-track,
.flexlayout__tab_moveable::-webkit-scrollbar-track {
    background: transparent;
}

.flexlayout__tabset_content::-webkit-scrollbar-thumb,
.flexlayout__tab_moveable::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

.flexlayout__tabset_content::-webkit-scrollbar-thumb:hover,
.flexlayout__tab_moveable::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

.flexlayout__tabset_content::-webkit-scrollbar-corner,
.flexlayout__tab_moveable::-webkit-scrollbar-corner {
    background: transparent;
}

/* ==================== Persistent Panels ==================== */
.persistent-panel-placeholder {
    width: 100%;
    height: 100%;
    background: transparent;
}

.persistent-panel-container {
    background: #242424;
}

/* 确保 tabset header 在 persistent panel 之上 */
.flexlayout__tabset_header,
.flexlayout__tabset_tabbar_outer {
    position: relative;
    z-index: 10;
}

/* 最大化时确保 tab bar 可见 */
.flexlayout__tabset_maximized .flexlayout__tabset_header,
.flexlayout__tabset_maximized .flexlayout__tabset_tabbar_outer {
    z-index: 100;
}