/* SLUI tabs: Tabs, TabPane (draggable), TabbedWindow. */

/* TABS COMPONENT */

.sl-tabs {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.sl-tabs.bottom {
    flex-direction: column-reverse;
}

.sl-tabs.left {
    flex-direction: row;
}

.sl-tabs.right {
    flex-direction: row-reverse;
}

/* Tab Bar */
.sl-tabs-bar {
    display: flex;
    gap: 2px;
    background-color: var(--toolbar-bg);
    background-image: var(--toolbar-bg-image, none);
    background-size: var(--toolbar-bg-size, cover);
    background-position: var(--toolbar-bg-position, center);
    background-repeat: var(--toolbar-bg-repeat, no-repeat);
    background-blend-mode: var(--toolbar-bg-blend, normal);
    padding: 4px;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    user-select: none;
    overflow-x: auto;
    flex-shrink: 0;
}

.sl-tabs.bottom .sl-tabs-bar {
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.sl-tabs.left .sl-tabs-bar,
.sl-tabs.right .sl-tabs-bar {
    flex-direction: column;
    overflow-x: visible;
    overflow-y: auto;
}

.sl-tabs.left .sl-tabs-bar {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.sl-tabs.right .sl-tabs-bar {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

/* Tab Button */
.sl-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    user-select: none;
}

.sl-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sl-tab.active {
    background: var(--bg-panel);
    color: var(--text-primary);
    box-shadow: 0 1px 3px var(--shadow);
}

.sl-tab-icon {
    font-size: 1rem;
}

.sl-tab-label {
    font-weight: 500;
}

.sl-tab-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-left: 4px;
    margin-right: -4px;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition);
}

.sl-tab:hover .sl-tab-close {
    opacity: 1;
}

.sl-tab-close:hover {
    background: var(--error);
    color: white;
}

.sl-tab-add {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: 1px dashed var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    transition: all var(--transition);
}

.sl-tab-add:hover {
    background: var(--bg-hover);
    border-color: var(--accent);
    color: var(--accent);
}

/* Tab dragging */
.sl-tab.dragging {
    opacity: 0.5;
}

.sl-tab.drag-over {
    background: var(--bg-active);
}

/* Tab Content */
.sl-tabs-content {
    flex: 1;
    min-height: 0;
    overflow: auto;
    display: flex;
    flex-direction: column;
    background: var(--bg-panel);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.sl-tabs.bottom .sl-tabs-content {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.sl-tabs.left .sl-tabs-content {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.sl-tabs.right .sl-tabs-content {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.sl-tab-panel {
    padding: 12px;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

/* Tabs Variants */

/* Pills variant */
.sl-tabs.pills .sl-tabs-bar {
    background: transparent;
    gap: 4px;
}

.sl-tabs.pills .sl-tab {
    border-radius: 999px;
}

.sl-tabs.pills .sl-tab.active {
    background: var(--accent);
    color: var(--text-inverse);
}

/* Underline variant */
.sl-tabs.underline .sl-tabs-bar {
    background: transparent;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    padding-bottom: 0;
}

.sl-tabs.underline .sl-tab {
    border-radius: 0;
    padding-bottom: 12px;
    margin-bottom: -1px;
    border-bottom: 2px solid transparent;
}

.sl-tabs.underline .sl-tab.active {
    background: transparent;
    box-shadow: none;
    border-bottom-color: var(--accent);
    color: var(--accent);
}

.sl-tabs.underline .sl-tabs-content {
    border-radius: 0;
}

/* TABPANE COMPONENT - Advanced draggable tabs */

.sl-tabpane {
    display: flex;
    flex-direction: column;
    min-height: 0;
    flex: 1;
}

.sl-tabpane-bar {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px 4px 0 4px;
    background-color: var(--toolbar-bg);
    background-image: var(--toolbar-bg-image, none);
    background-size: var(--toolbar-bg-size, cover);
    background-position: var(--toolbar-bg-position, center);
    background-repeat: var(--toolbar-bg-repeat, no-repeat);
    background-blend-mode: var(--toolbar-bg-blend, normal);
    border-bottom: 1px solid var(--border);
    min-height: 32px;
    position: relative;
    flex-wrap: wrap;
    cursor: grab;
    user-select: none;
}

.sl-tabpane-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition);
    user-select: none;
    white-space: nowrap;
    max-width: 180px;
}

.sl-tabpane-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sl-tabpane-tab.active {
    background: var(--bg-panel);
    color: var(--text-primary);
    border-bottom: 1px solid var(--bg-panel);
    margin-bottom: -1px;
}

.sl-tabpane-tab-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.sl-tabpane-tab-icon img {
    height: 16px;
    width: auto;
    object-fit: contain;
}

.sl-tabpane-tab-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sl-tabpane-tab-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    margin-left: 2px;
    margin-right: -4px;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition);
}

.sl-tabpane-tab:hover .sl-tabpane-tab-close {
    opacity: 0.7;
}

.sl-tabpane-tab-close:hover {
    opacity: 1;
    background: var(--error);
    color: white;
}

.sl-tabpane-content {
    flex: 1;
    min-height: 0;
    overflow: auto;
    background: var(--bg-panel);
}

.sl-tabpane-panel {
    height: 100%;
}

/* Drag ghost */
.sl-tabpane-drag-ghost {
    position: fixed;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--accent);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 0.8rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -100%);
    opacity: 0.95;
}

/* Drop indicator */
.sl-tabpane-drop-indicator {
    position: absolute;
    top: 4px;
    bottom: 0;
    width: 2px;
    background: var(--accent);
    border-radius: 1px;
    opacity: 0;
    transition: opacity 0.1s ease;
    pointer-events: none;
    z-index: 10;
}

.sl-tabpane-drop-indicator.visible {
    opacity: 1;
}

/* Pane states */
.sl-tabpane.dragging-tab .sl-tabpane-tab {
    pointer-events: none;
}

.sl-tabpane.drop-target .sl-tabpane-bar {
    background-color: var(--bg-active);
}

/* Body state during tab drag */
body.sl-tab-dragging {
    cursor: grabbing !important;
}

body.sl-tab-dragging * {
    cursor: grabbing !important;
}

/* Mobile adjustments */
.sl-app[data-mode="mobile"] .sl-tabpane-bar {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
}

.sl-app[data-mode="mobile"] .sl-tabpane-tab {
    padding: 8px 12px;
}

.sl-app[data-mode="mobile"] .sl-tabpane-tab-close {
    opacity: 0.7;
    width: 20px;
    height: 20px;
}

/* TABBED WINDOW - Window with integrated TabPane */

/* .sl-tabbed-window inherits from .sl-window - no additional styles needed */

.sl-tabbed-window-body {
    display: flex;
    flex-direction: column;
}

.sl-tabbed-window-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--content-padding, 12px);
    overflow: hidden;
}

.sl-tabbed-window-content .sl-tabpane {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.sl-tabbed-window-content .sl-tabpane-bar {
    border-radius: 0;
    /* Inherit toolbar-bg and image from base .sl-tabpane-bar */
}

.sl-tabbed-window-content .sl-tabpane-content {
    flex: 1;
    min-height: 0;
}

/* Visual feedback when a tab can be dropped on this window */
.sl-tabbed-window-body.tab-drop-ready {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.sl-tabbed-window-body.tab-drop-ready .sl-tabpane-bar {
    background-color: var(--bg-active);
}

/* Theme-specific styles */
[data-theme="hacker"] .sl-slider-thumb,
[data-theme="hacker"] .sl-range-slider-thumb {
    filter: drop-shadow(var(--glow));
}

[data-theme="hacker"] .sl-tab.active {
    text-shadow: var(--glow);
}

[data-theme="designer"] .sl-slider-track-bg,
[data-theme="designer"] .sl-range-slider-track::before,
[data-theme="designer"] .sl-timeline-track-bg {
    box-shadow: var(--neumorphic-inset);
    border: none;
}

[data-theme="designer"] .sl-slider-thumb,
[data-theme="designer"] .sl-range-slider-thumb {
    box-shadow: var(--neumorphic-raised);
}

[data-theme="designer"] .sl-tab.active {
    box-shadow: var(--neumorphic-raised);
}