/* ==========================================================================
   UI WINDOW SYSTEM - Component Styles for Draggable/Resizable Windows,
   Taskbar, Status Bars, Window Controls & Snapping Guides
   ========================================================================== */

/* Bottom & Window Status Bars */
.status-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 24px;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
  z-index: 40;
  box-sizing: border-box;
  overflow: hidden;
}

/* Experiment UI Window Internal Status Bar */
.experiment-status-bar {
  position: relative !important;
  bottom: auto !important;
  left: auto !important;
  right: auto !important;
  width: 100% !important;
  height: 22px !important;
  min-height: 22px !important;
  max-height: 22px !important;
  flex-shrink: 0;
  border-top: 1px solid var(--panel-border);
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0 6px;
  font-size: 0.7rem;
  color: var(--text-muted);
  box-sizing: border-box;
  overflow: hidden;
  z-index: 10;
}

.status-bar-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-left: auto;
  padding: 0 6px;
}

/* Window Taskbar container inside Status Bar */
.ui-window-taskbar {
  display: flex;
  align-items: center;
  gap: 3px;
  flex: 1 1 0%;
  min-width: 0;
  height: 100%;
  overflow: hidden;
}

/* Taskbar Item Tab Button */
.ui-taskbar-tab {
  flex: 1 1 0px;
  min-width: 32px;
  max-width: 180px;
  height: 20px;
  padding: 0 6px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--panel-border);
  border-radius: 3px;
  color: var(--text-muted);
  font-size: 0.7rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  overflow: hidden;
  box-sizing: border-box;
  user-select: none;
}

.ui-taskbar-tab:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}

.ui-taskbar-tab.active {
  background: rgba(88, 166, 255, 0.16);
  color: var(--value-color);
  border-color: rgba(88, 166, 255, 0.4);
  font-weight: 500;
}

.ui-taskbar-tab.minimized {
  opacity: 0.65;
  border-style: dashed;
}

.ui-taskbar-tab.closed {
  opacity: 0.4;
  font-style: italic;
}

.ui-taskbar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 14px;
  height: 14px;
}

.ui-taskbar-icon svg {
  width: 12px;
  height: 12px;
}

.ui-taskbar-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  flex: 1 1 auto;
  text-align: left;
}

/* ==========================================================================
   GENERIC / REUSABLE UI WINDOW CONTAINER
   ========================================================================== */
.ui-window {
  position: fixed;
  background: var(--panel-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 15;
  box-sizing: border-box;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.ui-window.ui-window-active {
  z-index: 35;
  border-color: rgba(88, 166, 255, 0.6);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.8), 0 0 16px rgba(88, 166, 255, 0.22);
}

/* Window Title Bar */
.ui-window-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 30px;
  min-height: 30px;
  padding: 0 4px 0 10px;
  background: rgba(255, 255, 255, 0.025);
  border-bottom: 1px solid var(--panel-border);
  cursor: grab;
  user-select: none;
  flex-shrink: 0;
  box-sizing: border-box;
}

.ui-window.ui-window-active .ui-window-titlebar {
  background: rgba(88, 166, 255, 0.07);
}

.ui-window-titlebar:active {
  cursor: grabbing;
}

.ui-window-title-group {
  display: flex;
  align-items: center;
  gap: 7px;
  overflow: hidden;
  white-space: nowrap;
  flex: 1;
}

.ui-window-icon {
  display: inline-flex;
  align-items: center;
  color: var(--value-color);
  flex-shrink: 0;
}

.ui-window-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-overflow: ellipsis;
  overflow: hidden;
}

.ui-window.ui-window-active .ui-window-title {
  color: var(--value-color);
}

.ui-window-controls {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 8px;
  flex-shrink: 0;
}

.ui-win-btn {
  width: 26px;
  height: 22px;
  border: none;
  background: transparent;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  padding: 0;
}

.ui-win-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
}

.ui-win-btn.win-btn-close:hover {
  background: #e81123;
  color: #ffffff;
}

/* Window Content Body */
.ui-window-body {
  flex: 1;
  min-height: 0;
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-sizing: border-box;
}

.ui-window-body::-webkit-scrollbar {
  width: 5px;
}

.ui-window-body::-webkit-scrollbar-thumb {
  background: var(--panel-border);
  border-radius: 3px;
}

/* Window Resize Handles (8 directions + corner grip) */
.ui-win-resize-handle {
  position: absolute;
  z-index: 20;
}

.ui-win-resize-handle.resize-n {
  top: 0;
  left: 8px;
  right: 8px;
  height: 6px;
  cursor: ns-resize;
}

.ui-win-resize-handle.resize-s {
  bottom: 0;
  left: 8px;
  right: 8px;
  height: 6px;
  cursor: ns-resize;
}

.ui-win-resize-handle.resize-e {
  right: 0;
  top: 8px;
  bottom: 8px;
  width: 6px;
  cursor: ew-resize;
}

.ui-win-resize-handle.resize-w {
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 6px;
  cursor: ew-resize;
}

.ui-win-resize-handle.resize-ne {
  top: 0;
  right: 0;
  width: 10px;
  height: 10px;
  cursor: nesw-resize;
}

.ui-win-resize-handle.resize-nw {
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  cursor: nwse-resize;
}

.ui-win-resize-handle.resize-se {
  bottom: 0;
  right: 0;
  width: 14px;
  height: 14px;
  cursor: nwse-resize;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 2px;
}

.ui-win-resize-handle.resize-sw {
  bottom: 0;
  left: 0;
  width: 10px;
  height: 10px;
  cursor: nesw-resize;
}

/* Maximized Window State */
.ui-window.is-maximized {
  border-radius: 0 !important;
  box-shadow: none !important;
  border-left: none !important;
  border-right: none !important;
}

.ui-window.is-maximized .ui-win-resize-handle {
  display: none !important;
}

.ui-window.is-maximized .ui-window-titlebar {
  cursor: default;
}

/* Visual Magnetic Snapping Guides */
.ui-window-snap-guide {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  display: none;
}

.ui-window-snap-guide.visible {
  display: block;
}

.ui-window-snap-guide.horizontal {
  left: 0;
  right: 0;
  height: 2px;
  background: rgba(88, 166, 255, 0.7);
  box-shadow: 0 0 8px rgba(88, 166, 255, 0.9);
}

.ui-window-snap-guide.vertical {
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(88, 166, 255, 0.7);
  box-shadow: 0 0 8px rgba(88, 166, 255, 0.9);
}

/* ==========================================================================
   WINDOW HOVER HIGHLIGHTING & TASKBAR CONTEXT MENU
   ========================================================================== */
.ui-window.ui-window-highlighted {
  z-index: 60 !important;
  border-color: var(--accent-primary, #58a6ff) !important;
  box-shadow: 0 0 24px rgba(88, 166, 255, 0.45), 0 16px 48px rgba(0, 0, 0, 0.85) !important;
}

.ui-window.ui-window-peek-minimized {
  display: flex !important;
  opacity: 0.88 !important;
  pointer-events: none !important;
  z-index: 60 !important;
  border-color: var(--accent-primary, #58a6ff) !important;
  border-style: dashed !important;
}

/* Multi-instance Taskbar Context Menu */
.ui-taskbar-popup-menu {
  position: fixed;
  bottom: 28px;
  background: var(--panel-bg, #161b22);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--panel-border, #30363d);
  border-radius: 6px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.8), 0 0 12px rgba(88, 166, 255, 0.18);
  padding: 5px;
  min-width: 230px;
  max-width: 320px;
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 3px;
  pointer-events: auto;
  user-select: none;
  animation: ui-menu-fade-in 0.15s ease-out;
}

@keyframes ui-menu-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.ui-taskbar-popup-header {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted, #8b949e);
  padding: 4px 8px 5px 8px;
  border-bottom: 1px solid var(--panel-border, #30363d);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ui-taskbar-popup-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
  color: var(--text-main, #c9d1d9);
  font-size: 0.72rem;
  cursor: pointer;
  text-align: left;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}

.ui-taskbar-popup-item:hover,
.ui-taskbar-popup-item.highlighted {
  background: rgba(88, 166, 255, 0.15);
  border-color: rgba(88, 166, 255, 0.35);
  color: #ffffff;
}

.ui-taskbar-popup-item.active-instance {
  border-left: 2px solid var(--accent-primary, #58a6ff);
  background: rgba(88, 166, 255, 0.08);
}

.ui-taskbar-popup-item-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
  flex: 1;
}

.ui-taskbar-popup-item-title {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ui-taskbar-popup-item-meta {
  font-size: 0.65rem;
  color: var(--text-muted, #8b949e);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}