/* ============================================================
   JupyterLab Static Clone — Main Stylesheet
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --jp-brand-color0: #611a82;
  --jp-brand-color1: #8a2be2;
  --jp-border-color0: #d4d4d4;
  --jp-border-color1: #e0e0e0;
  --jp-border-color2: #eeeeee;
  --jp-ui-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --jp-ui-font-size1: 13px;
  --jp-code-font-family: 'Menlo', 'Consolas', 'DejaVu Sans Mono', monospace;
  --jp-code-font-size: 13px;
  --jp-code-line-height: 1.5714;
  --jp-header-height: 40px;
  --jp-activity-bar-width: 44px;
  --jp-sidebar-width: 250px;
  --jp-status-bar-height: 24px;
  --jp-cell-prompt-width: 64px;
  --jp-layout-color0: #ffffff;
  --jp-layout-color1: #f5f5f5;
  --jp-layout-color2: #eeeeee;
  --jp-layout-color3: #e0e0e0;
  --jp-layout-color4: #cbcbcb;
  --jp-content-font-color0: #000000;
  --jp-content-font-color1: #212121;
  --jp-content-font-color2: #616161;
  --jp-content-font-color3: #9e9e9e;
  --jp-input-active-box-shadow-color: rgba(97, 26, 130, 0.35);
  --jp-cell-bg: #f7f7f7;
  --jp-cell-selected-bg: #e8f0fe;
  --jp-cell-edit-border: #1a73e8;
  --jp-cell-output-bg: #ffffff;
  --jp-warn-color0: #f57c00;
  --jp-error-color0: #d32f2f;
  --jp-success-color0: #388e3c;
  --jp-info-color0: #1976d2;
}

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  font-family: var(--jp-ui-font-family);
  font-size: var(--jp-ui-font-size1);
  color: var(--jp-content-font-color1);
  background: var(--jp-layout-color0);
}

/* ===================== APP LAYOUT ===================== */
#jp-app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* ===================== TOP BAR ===================== */
#jp-top-bar {
  display: flex;
  align-items: center;
  height: var(--jp-header-height);
  min-height: var(--jp-header-height);
  background: var(--jp-layout-color1);
  border-bottom: 1px solid var(--jp-border-color0);
  z-index: 100;
  flex-shrink: 0;
  user-select: none;
}

#jp-logo-area {
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  border-right: 1px solid var(--jp-border-color0);
  height: 100%;
  min-width: 160px;
}

#jp-logo-svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

#jp-logo-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--jp-content-font-color1);
  letter-spacing: 0.02em;
}

/* ===================== MENU BAR ===================== */
#jp-menu-bar {
  display: flex;
  align-items: stretch;
  height: 100%;
  flex: 1;
}

.jp-menu-item {
  display: flex;
  align-items: center;
  padding: 0 10px;
  cursor: pointer;
  font-size: 13px;
  color: var(--jp-content-font-color1);
  border-right: none;
  position: relative;
  white-space: nowrap;
  transition: background 0.1s;
}

.jp-menu-item:hover,
.jp-menu-item.active {
  background: var(--jp-layout-color3);
}

/* ===================== BODY LAYOUT ===================== */
#jp-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* ===================== ACTIVITY BAR ===================== */
#jp-activity-bar {
  display: flex;
  flex-direction: column;
  width: var(--jp-activity-bar-width);
  min-width: var(--jp-activity-bar-width);
  background: var(--jp-layout-color2);
  border-right: 1px solid var(--jp-border-color0);
  z-index: 50;
  flex-shrink: 0;
}

.jp-activity-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  cursor: pointer;
  font-size: 18px;
  color: var(--jp-content-font-color2);
  border-left: 2px solid transparent;
  transition: color 0.15s, background 0.15s;
  position: relative;
  title: attr(title);
}

.jp-activity-icon:hover {
  background: var(--jp-layout-color3);
  color: var(--jp-content-font-color0);
}

.jp-activity-icon.active {
  border-left-color: var(--jp-brand-color0);
  color: var(--jp-brand-color0);
  background: var(--jp-layout-color1);
}

.jp-activity-spacer {
  flex: 1;
}

/* ===================== LEFT PANEL ===================== */
#jp-left-panel {
  width: var(--jp-sidebar-width);
  min-width: var(--jp-sidebar-width);
  max-width: var(--jp-sidebar-width);
  background: var(--jp-layout-color1);
  border-right: 1px solid var(--jp-border-color0);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
  transition: width 0.15s ease;
}

#jp-left-panel.collapsed {
  width: 0;
  min-width: 0;
}

.jp-sidebar-panel {
  display: none;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.jp-sidebar-panel.active {
  display: flex;
}

.jp-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px 6px 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--jp-content-font-color2);
  border-bottom: 1px solid var(--jp-border-color1);
  flex-shrink: 0;
  min-height: 36px;
}

.jp-panel-header-actions {
  display: flex;
  gap: 2px;
}

.jp-panel-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 3px 5px;
  border-radius: 3px;
  font-size: 14px;
  color: var(--jp-content-font-color2);
  line-height: 1;
  transition: background 0.1s;
}

.jp-panel-btn:hover {
  background: var(--jp-layout-color3);
  color: var(--jp-content-font-color0);
}

/* File Browser Breadcrumb */
.jp-breadcrumb {
  padding: 4px 8px 4px 12px;
  font-size: 12px;
  color: var(--jp-content-font-color2);
  border-bottom: 1px solid var(--jp-border-color2);
  flex-shrink: 0;
}

/* File Tree */
#jp-file-tree {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

.jp-file-item {
  display: flex;
  align-items: center;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--jp-content-font-color1);
  user-select: none;
  border-radius: 3px;
  margin: 1px 4px;
  gap: 6px;
  transition: background 0.1s;
}

.jp-file-item:hover {
  background: var(--jp-layout-color3);
}

.jp-file-item.selected {
  background: var(--jp-cell-selected-bg);
  color: #1a73e8;
}

.jp-file-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  font-size: 14px;
}

.jp-file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.jp-file-timestamp {
  font-size: 11px;
  color: var(--jp-content-font-color3);
  flex-shrink: 0;
}

.jp-dir-toggle {
  font-size: 10px;
  width: 12px;
  text-align: center;
  flex-shrink: 0;
  transition: transform 0.15s;
}

.jp-dir-toggle.open {
  transform: rotate(90deg);
}

.jp-dir-children {
  padding-left: 16px;
}

/* Running Panel */
.jp-running-section {
  padding: 8px 0;
  flex: 1;
  overflow-y: auto;
}

.jp-running-header {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 8px 12px 4px;
  color: var(--jp-content-font-color2);
}

.jp-running-empty {
  padding: 4px 12px;
  font-size: 12px;
  color: var(--jp-content-font-color3);
  font-style: italic;
}

.jp-running-item {
  display: flex;
  align-items: center;
  padding: 5px 12px;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.1s;
}

.jp-running-item:hover { background: var(--jp-layout-color2); }

.jp-running-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4caf50;
  flex-shrink: 0;
}

/* Commands Panel */
.jp-panel-search {
  padding: 8px;
  border-bottom: 1px solid var(--jp-border-color1);
  flex-shrink: 0;
}

.jp-panel-search input {
  width: 100%;
  padding: 5px 8px;
  border: 1px solid var(--jp-border-color0);
  border-radius: 3px;
  font-size: 13px;
  background: var(--jp-layout-color0);
  color: var(--jp-content-font-color1);
  outline: none;
}

.jp-panel-search input:focus {
  border-color: var(--jp-brand-color0);
  box-shadow: 0 0 0 2px var(--jp-input-active-box-shadow-color);
}

#jp-commands-list {
  flex: 1;
  overflow-y: auto;
}

.jp-command-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.1s;
}

.jp-command-item:hover { background: var(--jp-layout-color2); }

.jp-command-kbd {
  font-size: 11px;
  color: var(--jp-content-font-color3);
  font-family: var(--jp-code-font-family);
}

/* ===================== MAIN CONTENT ===================== */
#jp-main-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
  min-height: 0;
  background: var(--jp-layout-color0);
}

/* ===================== TAB BAR ===================== */
#jp-tab-bar {
  display: flex;
  align-items: flex-end;
  background: var(--jp-layout-color2);
  border-bottom: 1px solid var(--jp-border-color0);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  min-height: 36px;
  flex-shrink: 0;
}

#jp-tab-bar::-webkit-scrollbar { display: none; }

.jp-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px 6px 12px;
  background: var(--jp-layout-color2);
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 4px 4px 0 0;
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
  max-width: 200px;
  min-width: 80px;
  position: relative;
  top: 1px;
  transition: background 0.1s;
  user-select: none;
  color: var(--jp-content-font-color2);
}

.jp-tab:hover {
  background: var(--jp-layout-color1);
  color: var(--jp-content-font-color0);
}

.jp-tab.active {
  background: var(--jp-layout-color0);
  border-color: var(--jp-border-color0);
  color: var(--jp-content-font-color0);
  font-weight: 500;
}

.jp-tab-icon {
  font-size: 14px;
  flex-shrink: 0;
}

.jp-tab-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}

.jp-tab-modified {
  color: var(--jp-warn-color0);
  font-size: 10px;
  flex-shrink: 0;
}

.jp-tab-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 1px 2px;
  border-radius: 3px;
  font-size: 13px;
  line-height: 1;
  color: var(--jp-content-font-color3);
  opacity: 0.6;
  transition: opacity 0.1s, background 0.1s;
  flex-shrink: 0;
}

.jp-tab-close:hover {
  opacity: 1;
  background: rgba(0,0,0,0.1);
}

.jp-tab-add {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 28px;
  cursor: pointer;
  font-size: 18px;
  color: var(--jp-content-font-color3);
  border-radius: 4px;
  margin: 4px 4px 0;
  transition: background 0.1s, color 0.1s;
  flex-shrink: 0;
}

.jp-tab-add:hover {
  background: var(--jp-layout-color3);
  color: var(--jp-content-font-color0);
}

/* ===================== CONTENT PANELS ===================== */
#jp-content-panels {
  flex: 1;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* Display is controlled exclusively by JS (inline style !important).
   These rules are fallbacks only. */
.jp-content-panel {
  display: none;
  flex: 1;
  min-height: 0;
  width: 100%;
  overflow: auto;
  flex-direction: column;
}

.jp-content-panel.active {
  display: flex;
  flex-direction: column;
}

/* ===================== LAUNCHER ===================== */
#jp-launcher {
  padding: 24px 32px;
  overflow-y: auto;
  flex: 1;
}

.jp-launcher-section {
  margin-bottom: 32px;
}

.jp-launcher-section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--jp-content-font-color2);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--jp-border-color1);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.jp-launcher-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.jp-launcher-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 90px;
  background: var(--jp-layout-color0);
  border: 1px solid var(--jp-border-color1);
  border-radius: 6px;
  cursor: pointer;
  padding: 12px 8px 8px;
  gap: 8px;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
  text-align: center;
}

.jp-launcher-card:hover {
  border-color: var(--jp-brand-color0);
  box-shadow: 0 2px 8px rgba(97,26,130,0.15);
  background: #faf5ff;
}

.jp-launcher-card-icon {
  font-size: 28px;
  line-height: 1;
}

.jp-launcher-card-label {
  font-size: 11px;
  color: var(--jp-content-font-color2);
  max-width: 90px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===================== NOTEBOOK ===================== */
.jp-notebook {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

/* Notebook Toolbar */
.jp-notebook-toolbar {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px 8px;
  background: var(--jp-layout-color1);
  border-bottom: 1px solid var(--jp-border-color1);
  flex-shrink: 0;
  flex-wrap: wrap;
}

.jp-toolbar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  background: none;
  border: 1px solid transparent;
  border-radius: 3px;
  cursor: pointer;
  font-size: 13px;
  color: var(--jp-content-font-color1);
  gap: 4px;
  white-space: nowrap;
  transition: background 0.1s, border-color 0.1s;
  min-width: 28px;
  height: 28px;
}

.jp-toolbar-btn:hover {
  background: var(--jp-layout-color2);
  border-color: var(--jp-border-color0);
}

.jp-toolbar-btn:active {
  background: var(--jp-layout-color3);
}

.jp-toolbar-btn.running {
  color: var(--jp-warn-color0);
}

.jp-toolbar-sep {
  width: 1px;
  height: 20px;
  background: var(--jp-border-color0);
  margin: 0 4px;
  flex-shrink: 0;
}

.jp-toolbar-kernel-info {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--jp-content-font-color2);
  padding: 0 8px;
}

.jp-kernel-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4caf50;
  transition: background 0.3s;
}

.jp-kernel-status-dot.busy {
  background: var(--jp-warn-color0);
  animation: pulse 1s infinite;
}

.jp-cell-type-select {
  padding: 3px 6px;
  border: 1px solid var(--jp-border-color0);
  border-radius: 3px;
  font-size: 12px;
  background: var(--jp-layout-color0);
  color: var(--jp-content-font-color1);
  cursor: pointer;
  height: 28px;
}

/* Notebook Cell Area */
.jp-notebook-cells {
  flex: 1;
  overflow-y: auto;
  padding: 24px 0;
  background: var(--jp-layout-color0);
}

.jp-cell-wrapper {
  display: flex;
  padding: 4px 0;
  position: relative;
}

.jp-cell-wrapper:hover .jp-cell-actions {
  opacity: 1;
}

.jp-cell-wrapper.selected .jp-cell-inner {
  border-color: #1a73e8;
  border-left-width: 3px;
}

.jp-cell-wrapper.editing .jp-cell-inner {
  border-color: #1a73e8;
  box-shadow: 0 0 0 2px rgba(26,115,232,0.2);
}

.jp-cell-prompt {
  width: var(--jp-cell-prompt-width);
  min-width: var(--jp-cell-prompt-width);
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 6px 8px 0 0;
  font-family: var(--jp-code-font-family);
  font-size: 12px;
  color: var(--jp-brand-color0);
  flex-shrink: 0;
  user-select: none;
}

.jp-cell-inner {
  flex: 1;
  margin-right: 32px;
  border: 1px solid transparent;
  border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.1s;
}

.jp-cell-inner:hover {
  border-color: var(--jp-border-color0);
}

/* Code Cell */
.jp-code-cell-input {
  background: var(--jp-cell-bg);
  padding: 8px 12px;
  font-family: var(--jp-code-font-family);
  font-size: var(--jp-code-font-size);
  line-height: var(--jp-code-line-height);
  white-space: pre;
  overflow-x: auto;
  min-height: 42px;
  cursor: text;
  color: var(--jp-content-font-color0);
  outline: none;
}

.jp-code-cell-input[contenteditable="true"] {
  cursor: text;
  border-bottom: 1px solid var(--jp-border-color1);
}

.jp-code-cell-output {
  background: var(--jp-cell-output-bg);
  padding: 8px 12px;
  font-family: var(--jp-code-font-family);
  font-size: var(--jp-code-font-size);
  line-height: var(--jp-code-line-height);
  border-top: 1px solid var(--jp-border-color2);
  overflow-x: auto;
  word-break: break-word;
  white-space: pre-wrap;
}

.jp-output-stream { color: #000; }
.jp-output-error { color: var(--jp-error-color0); }

.jp-output-html { white-space: normal; }
.jp-output-html table {
  border-collapse: collapse;
  font-size: 12px;
  margin: 4px 0;
}
.jp-output-html th, .jp-output-html td {
  border: 1px solid #ccc;
  padding: 4px 8px;
  text-align: left;
}
.jp-output-html th { background: #f0f0f0; font-weight: 600; }

/* Markdown Cell */
.jp-markdown-cell-source {
  display: none;
  background: var(--jp-cell-bg);
  padding: 8px 12px;
  font-family: var(--jp-code-font-family);
  font-size: var(--jp-code-font-size);
  line-height: var(--jp-code-line-height);
  white-space: pre;
}

.jp-cell-wrapper.editing .jp-markdown-cell-source { display: block; }
.jp-cell-wrapper.editing .jp-markdown-cell-rendered { display: none; }

.jp-markdown-cell-rendered {
  padding: 8px 16px;
  line-height: 1.6;
  font-family: var(--jp-ui-font-family);
  font-size: 14px;
}

.jp-markdown-cell-rendered h1 { font-size: 22px; margin: 12px 0 8px; padding-bottom: 6px; border-bottom: 1px solid var(--jp-border-color1); }
.jp-markdown-cell-rendered h2 { font-size: 18px; margin: 10px 0 6px; }
.jp-markdown-cell-rendered h3 { font-size: 15px; margin: 8px 0 4px; }
.jp-markdown-cell-rendered p { margin: 6px 0; }
.jp-markdown-cell-rendered code {
  background: var(--jp-layout-color2);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: var(--jp-code-font-family);
  font-size: 12px;
}
.jp-markdown-cell-rendered pre {
  background: var(--jp-cell-bg);
  padding: 10px 12px;
  border-radius: 4px;
  overflow-x: auto;
  margin: 8px 0;
  font-size: 12px;
  line-height: 1.5;
}
.jp-markdown-cell-rendered pre code { background: none; padding: 0; }
.jp-markdown-cell-rendered ul, .jp-markdown-cell-rendered ol { padding-left: 24px; margin: 6px 0; }
.jp-markdown-cell-rendered li { margin: 3px 0; }
.jp-markdown-cell-rendered blockquote {
  border-left: 3px solid var(--jp-border-color0);
  padding-left: 16px;
  color: var(--jp-content-font-color2);
  margin: 8px 0;
}
.jp-markdown-cell-rendered a { color: var(--jp-info-color0); text-decoration: none; }
.jp-markdown-cell-rendered a:hover { text-decoration: underline; }
.jp-markdown-cell-rendered strong { font-weight: 700; }
.jp-markdown-cell-rendered em { font-style: italic; }
.jp-markdown-cell-rendered hr { border: none; border-top: 1px solid var(--jp-border-color0); margin: 12px 0; }

/* Cell Actions */
.jp-cell-actions {
  position: absolute;
  right: 4px;
  top: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s;
}

.jp-cell-action-btn {
  background: var(--jp-layout-color1);
  border: 1px solid var(--jp-border-color0);
  border-radius: 3px;
  cursor: pointer;
  padding: 3px 5px;
  font-size: 11px;
  color: var(--jp-content-font-color2);
  transition: background 0.1s;
  line-height: 1;
}

.jp-cell-action-btn:hover {
  background: var(--jp-layout-color3);
  color: var(--jp-content-font-color0);
}

/* Add Cell Button */
.jp-add-cell-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 4px auto;
  padding: 4px 24px;
  background: none;
  border: 1px dashed var(--jp-border-color1);
  border-radius: 3px;
  cursor: pointer;
  font-size: 12px;
  color: var(--jp-content-font-color3);
  transition: border-color 0.1s, color 0.1s, background 0.1s;
  width: calc(100% - var(--jp-cell-prompt-width) - 32px);
  margin-left: var(--jp-cell-prompt-width);
}

.jp-add-cell-btn:hover {
  border-color: var(--jp-brand-color0);
  color: var(--jp-brand-color0);
  background: #faf5ff;
}

/* ===================== TERMINAL ===================== */
/* Terminal panels get display managed by JS; only set flex layout when visible */
.jp-terminal-panel {
  flex-direction: column;
  flex: 1;
  overflow: hidden;
  background: #1e1e1e;
  padding: 8px 0;
}

.jp-terminal-output {
  flex: 1;
  overflow-y: auto;
  padding: 4px 16px;
  font-family: var(--jp-code-font-family);
  font-size: 13px;
  line-height: 1.5;
  color: #d4d4d4;
  white-space: pre-wrap;
  word-break: break-word;
}

.jp-terminal-line {
  min-height: 1.5em;
}

.jp-terminal-prompt-line {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.jp-terminal-user { color: #4ec9b0; }
.jp-terminal-host { color: #4ec9b0; }
.jp-terminal-path { color: #569cd6; }
.jp-terminal-prompt-sym { color: #d4d4d4; }
.jp-terminal-cmd { color: #d4d4d4; }
.jp-terminal-output-text { color: #cccccc; }
.jp-terminal-error { color: #f14c4c; }
.jp-terminal-info { color: #9cdcfe; }

.jp-terminal-input-row {
  display: flex;
  align-items: baseline;
  padding: 2px 16px;
  gap: 6px;
  font-family: var(--jp-code-font-family);
  font-size: 13px;
  color: #d4d4d4;
  flex-shrink: 0;
}

.jp-terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #d4d4d4;
  font-family: var(--jp-code-font-family);
  font-size: 13px;
  caret-color: #d4d4d4;
}

/* ===================== TEXT EDITOR ===================== */
.jp-text-editor {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.jp-editor-toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: var(--jp-layout-color1);
  border-bottom: 1px solid var(--jp-border-color0);
  flex-shrink: 0;
}

.jp-editor-content {
  flex: 1;
  padding: 12px;
  font-family: var(--jp-code-font-family);
  font-size: 13px;
  line-height: 1.6;
  color: var(--jp-content-font-color0);
  overflow-y: auto;
  white-space: pre;
  outline: none;
  background: var(--jp-layout-color0);
  resize: none;
  border: none;
  width: 100%;
}

/* ===================== STATUS BAR ===================== */
#jp-status-bar {
  display: flex;
  align-items: center;
  height: var(--jp-status-bar-height);
  min-height: var(--jp-status-bar-height);
  background: var(--jp-brand-color0);
  color: #ffffff;
  font-size: 11px;
  padding: 0 8px;
  flex-shrink: 0;
  z-index: 100;
  user-select: none;
}

#jp-status-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

#jp-status-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.jp-status-item {
  padding: 0 8px;
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  border-radius: 2px;
  height: 22px;
  transition: background 0.1s;
}

.jp-status-item:hover {
  background: rgba(255,255,255,0.15);
}

/* ===================== DROPDOWN MENU ===================== */
.jp-menu-dropdown {
  position: fixed;
  background: var(--jp-layout-color0);
  border: 1px solid var(--jp-border-color0);
  border-radius: 4px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  min-width: 220px;
  z-index: 1000;
  padding: 4px 0;
  display: none;
}

.jp-menu-dropdown.open { display: block; }

.jp-dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 16px 6px 12px;
  cursor: pointer;
  font-size: 13px;
  color: var(--jp-content-font-color1);
  transition: background 0.1s;
  gap: 16px;
  white-space: nowrap;
}

.jp-dropdown-item:hover { background: var(--jp-layout-color2); }

.jp-dropdown-item.disabled {
  color: var(--jp-content-font-color3);
  cursor: default;
}

.jp-dropdown-item.disabled:hover { background: none; }

.jp-dropdown-sep {
  height: 1px;
  background: var(--jp-border-color1);
  margin: 4px 0;
}

.jp-dropdown-kbd {
  font-size: 11px;
  color: var(--jp-content-font-color3);
  font-family: var(--jp-code-font-family);
}

.jp-dropdown-arrow {
  font-size: 10px;
  color: var(--jp-content-font-color3);
}

/* ===================== CONTEXT MENU ===================== */
.jp-context-menu {
  position: fixed;
  background: var(--jp-layout-color0);
  border: 1px solid var(--jp-border-color0);
  border-radius: 4px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  min-width: 180px;
  z-index: 2000;
  padding: 4px 0;
  display: none;
}

.jp-context-menu.open { display: block; }

.jp-ctx-item {
  padding: 6px 16px;
  cursor: pointer;
  font-size: 13px;
  color: var(--jp-content-font-color1);
  transition: background 0.1s;
}

.jp-ctx-item:hover { background: var(--jp-layout-color2); }
.jp-ctx-item.danger { color: var(--jp-error-color0); }
.jp-ctx-sep { height: 1px; background: var(--jp-border-color1); margin: 4px 0; }

/* ===================== MODAL / DIALOG ===================== */
.jp-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.jp-modal {
  background: var(--jp-layout-color0);
  border-radius: 6px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  min-width: 360px;
  max-width: 520px;
  overflow: hidden;
}

.jp-modal-header {
  padding: 16px 20px 12px;
  font-size: 15px;
  font-weight: 600;
  border-bottom: 1px solid var(--jp-border-color1);
}

.jp-modal-body {
  padding: 16px 20px;
  font-size: 13px;
  line-height: 1.5;
}

.jp-modal-footer {
  padding: 12px 20px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  border-top: 1px solid var(--jp-border-color1);
}

.jp-btn {
  padding: 6px 16px;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.1s, border-color 0.1s;
}

.jp-btn-primary {
  background: var(--jp-brand-color0);
  color: #ffffff;
  border-color: var(--jp-brand-color0);
}
.jp-btn-primary:hover { background: var(--jp-brand-color1); }

.jp-btn-default {
  background: var(--jp-layout-color0);
  color: var(--jp-content-font-color1);
  border-color: var(--jp-border-color0);
}
.jp-btn-default:hover { background: var(--jp-layout-color2); }

.jp-btn-danger {
  background: var(--jp-error-color0);
  color: #ffffff;
  border-color: var(--jp-error-color0);
}
.jp-btn-danger:hover { background: #b71c1c; }

/* ===================== NOTIFICATIONS ===================== */
#jp-notifications {
  position: fixed;
  bottom: 30px;
  right: 16px;
  z-index: 4000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.jp-notification {
  background: #323232;
  color: #ffffff;
  padding: 10px 16px;
  border-radius: 4px;
  font-size: 13px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: all;
  max-width: 320px;
}

.jp-notification.show {
  opacity: 1;
  transform: translateY(0);
}

.jp-notification.info { border-left: 3px solid #4fc3f7; }
.jp-notification.success { border-left: 3px solid #81c784; }
.jp-notification.warning { border-left: 3px solid #ffb74d; }
.jp-notification.error { border-left: 3px solid #e57373; }

/* ===================== SYNTAX HIGHLIGHTING ===================== */
.jp-kw { color: #a626a4; }
.jp-func { color: #4078f2; }
.jp-str { color: #50a14f; }
.jp-num { color: #986801; }
.jp-cmt { color: #9ca0a4; font-style: italic; }
.jp-cls { color: #c18401; }
.jp-op { color: #0184bc; }
.jp-builtin { color: #c18401; }
.jp-escape { color: #0184bc; }

/* ===================== SCROLLBARS ===================== */
::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #c0c0c0; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #a0a0a0; }

/* ===================== ANIMATIONS ===================== */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.jp-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--jp-border-color0);
  border-top-color: var(--jp-brand-color0);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* ===================== WELCOME SCREEN ===================== */
.jp-welcome {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 24px;
}

.jp-welcome h1 {
  font-size: 28px;
  font-weight: 300;
  margin-bottom: 8px;
  color: var(--jp-brand-color0);
}

.jp-welcome-subtitle {
  color: var(--jp-content-font-color2);
  font-size: 15px;
  margin-bottom: 32px;
}

/* ===================== MISC UTILITIES ===================== */
.hidden { display: none !important; }
.jp-flex { display: flex; }
.jp-flex-col { flex-direction: column; }
.jp-flex-1 { flex: 1; }

.jp-tooltip {
  position: absolute;
  background: rgba(50,50,50,0.9);
  color: #fff;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 3px;
  white-space: nowrap;
  pointer-events: none;
  z-index: 5000;
}

/* ===================== SELECTION HANDLE ===================== */
#jp-left-panel-sizer {
  width: 4px;
  background: transparent;
  cursor: col-resize;
  flex-shrink: 0;
  transition: background 0.15s;
}

#jp-left-panel-sizer:hover { background: var(--jp-brand-color0); }