:root {
  --bg-main: #0e1117;
  --bg-panel: #141922;
  --bg-panel-alt: #10151d;
  --bg-code: #010409;
  --text-primary: #c9d1d9;
  --text-secondary: #8b949e;
  --accent: #58a6ff;
  --accent-alt: #79c0ff;
  --border: rgba(255, 255, 255, 0.08);
  --success: #6cf2b2;
  --warning: #ffa657;
  --danger: #ff6b6b;
  --info: #5aa9ff;
}

.light {
  --bg-main: #f6f8fb;
  --bg-panel: #ffffff;
  --bg-panel-alt: #f0f2f6;
  --bg-code: #f5f5f5;
  --text-primary: #24292f;
  --text-secondary: #57606a;
  --accent: #0066cc;
  --accent-alt: #0969da;
  --border: rgba(0, 0, 0, 0.08);
  --success: #4caf50;
  --warning: #ff9800;
  --danger: #f44336;
  --info: #2196f3;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg-main);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  height: 100vh;
  transition: background-color 0.2s, color 0.2s;
  color-scheme: dark;
}

header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background-color: var(--bg-panel);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  z-index: 100;
}

.logo svg {
  color: var(--accent);
  flex-shrink: 0;
}

h1 {
  margin: 0;
  flex-grow: 1;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.3px;
}

#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  color: var(--text-primary);
  padding: 6px 10px;
  transition: all 0.2s;
}

#theme-toggle:hover {
  background-color: var(--bg-panel-alt);
  border-color: var(--accent);
}

main {
  display: flex;
  flex: 1;
  overflow: hidden;
  gap: 0;
}

.panel-wrapper {
  display: flex;
  position: relative;
  overflow: hidden;
}

.resize-handle {
  width: 4px;
  background: var(--border);
  cursor: col-resize;
  user-select: none;
  transition: background 0.2s;
}

.resize-handle:hover {
  background: var(--accent);
}

#file-tree {
  width: 280px;
  display: flex;
  flex-direction: column;
  padding: 0;
  border-right: 1px solid var(--border);
  overflow: hidden;
  background-color: var(--bg-panel);
}

#file-tree-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel-alt);
}

#file-tree-header h2 {
  font-size: 14px;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.4px;
}

#file-tree-controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 16px;
}

input[type="file"] {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background-color: var(--bg-panel-alt);
  cursor: pointer;
  font-size: 12px;
  color: var(--text-primary);
  transition: all 0.2s;
}

input[type="file"]:hover {
  border-color: var(--accent);
  background-color: var(--bg-main);
}

#tree-view {
  flex: 1;
  overflow-y: auto;
  font-size: 12px;
  padding: 0 8px;
}

#tree-view ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#tree-view li {
  margin: 0;
  list-style: none;
}

.tree-item {
  margin-left: 8px;
  padding: 2px 0;
}

.tree-chevron {
  display: inline-block;
  width: 16px;
  text-align: center;
  transition: transform 0.15s ease;
  font-size: 12px;
  color: var(--text-secondary);
  margin-right: 4px;
}

.tree-folder,
.tree-file {
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
  user-select: none;
  color: var(--text-secondary);
}

.tree-folder {
  font-weight: 500;
}

.tree-chevron {
  display: inline-block;
  width: 14px;
  text-align: center;
  transition: transform 0.15s ease;
  font-size: 12px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.tree-count {
  display: inline-block;
  background: var(--bg-panel-alt);
  color: var(--text-secondary);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  margin-left: auto;
  flex-shrink: 0;
}

.tree-folder-open .tree-count {
  background: var(--accent);
  color: var(--bg-main);
}

.tree-folder:hover,
.tree-file:hover {
  background-color: var(--bg-panel-alt);
  color: var(--accent);
}

.tree-file.active {
  background-color: var(--accent);
  color: var(--bg-main);
  font-weight: 600;
}

.tree-children {
  margin-left: 12px;
  transition: all 0.15s ease;
}

.tree-level {
  list-style: none;
  margin: 0;
  padding: 0;
}

.tree-toolbar {
  display: flex;
  gap: 6px;
  margin-top: 8px;
  align-items: center;
}

.tree-toolbar input {
  flex: 1;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text-primary);
}

.tree-toolbar button {
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-panel-alt);
  color: var(--text-primary);
  cursor: pointer;
}

.tree-toolbar button:hover {
  background: var(--bg-panel);
}

#graph-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0;
  background-color: var(--bg-main);
  border-right: 1px solid var(--border);
}

.graph-wrapper {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-panel);
  border-radius: 0;
  overflow: hidden;
  border: 0;
}

.graph-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel-alt);
}

.graph-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.4px;
  margin: 0;
}

.graph-subtitle {
  display: block;
  font-size: 11px;
  opacity: 0.6;
  margin: 4px 0 0 0;
}

.graph-canvas {
  position: relative;
  flex: 1;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.04), transparent 70%), var(--bg-main);
}

.graph-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 12px;
  opacity: 0.4;
  pointer-events: none;
}

.graph-legend {
  display: flex;
  gap: 16px;
  padding: 10px 14px;
  font-size: 11px;
  border-top: 1px solid var(--border);
  background: var(--bg-panel-alt);
  flex-wrap: wrap;
}

.graph-legend div {
  display: flex;
  align-items: center;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.entry {
  background: var(--success);
}

.dot.file {
  background: var(--info);
}

.dot.dead {
  background: var(--danger);
}

.line {
  width: 16px;
  height: 2px;
  background: var(--text-secondary);
}

#detail-panel {
  width: 350px;
  display: flex;
  flex-direction: column;
  padding: 0;
  border-left: 1px solid var(--border);
  overflow: hidden;
  background-color: var(--bg-panel);
}

#detail-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel-alt);
}

#detail-header h2 {
  font-size: 14px;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.4px;
}

#details-content {
  flex: 1;
  overflow-y: auto;
  font-size: 12px;
  padding: 0;
}

.details-item {
  margin: 0;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.details-item strong {
  display: block;
  font-size: 11px;
  color: var(--accent);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin: 0;
}

.code-viewer {
  background-color: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0;
  margin: 8px 0;
  overflow: hidden;
}

.code-header {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background-color: var(--bg-panel-alt);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.code-header span {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.code-expand-btn {
  background: var(--accent);
  border: none;
  color: var(--bg-main);
  padding: 4px 8px;
  border-radius: 3px;
  font-size: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
}

.code-expand-btn:hover {
  background: var(--accent-alt);
}

.code-content {
  max-height: 300px;
  overflow-y: auto;
}

.code-content pre {
  margin: 0;
  padding: 12px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 11px;
  line-height: 1.6;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Syntax highlighting */
.keyword {
  color: #ff7b72;
}

.string {
  color: #a5d6ff;
}

.comment {
  color: #8b949e;
  font-style: italic;
}

.function {
  color: #d2a8ff;
}

.number {
  color: #79c0ff;
}

.dep-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 8px 0;
}

.dep-item {
  padding: 8px 10px;
  background-color: var(--bg-panel-alt);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  font-size: 11px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--accent);
}

.dep-item:hover {
  background-color: var(--bg-main);
  transform: translateX(2px);
}

.tag {
  display: inline-block;
  padding: 3px 8px;
  margin-right: 4px;
  margin-bottom: 4px;
  background-color: var(--accent);
  color: var(--bg-main);
  border-radius: 12px;
  font-size: 10px;
  font-weight: 600;
}

.tag.export {
  background-color: var(--success);
}

.tag.function {
  background-color: var(--info);
}

.tag.variable {
  background-color: var(--warning);
}

/* Full code modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: none;
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 90vw;
  height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  position: relative;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel-alt);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--bg-main);
  color: var(--danger);
}

.modal-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}

.modal-navbar {
  width: 200px;
  border-right: 1px solid var(--border);
  background: var(--bg-panel-alt);
  overflow-y: auto;
  padding: 12px;
}

.navbar-section {
  margin-bottom: 16px;
}

.navbar-section h3 {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 8px 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.navbar-item {
  padding: 4px 8px;
  margin-bottom: 2px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  transition: all 0.2s;
  color: var(--text-secondary);
}

.navbar-item:hover {
  background: var(--bg-main);
  color: var(--accent);
}

.navbar-empty {
  font-size: 10px;
  color: var(--text-secondary);
  font-style: italic;
  padding: 4px 8px;
}

.modal-content {
  flex: 1;
  overflow-y: auto;
  background: var(--bg-code);
  display: flex;
  flex-direction: column;
}

.modal-resize-handle {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 20px;
  height: 20px;
  cursor: nw-resize;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  font-size: 12px;
  user-select: none;
}

.modal-resize-handle:hover {
  color: var(--accent);
}

.code-modal-wrapper {
  padding: 0;
  flex: 1;
  display: flex;
  flex-direction: row;
  overflow: hidden;
  background: var(--bg-code);
}

.code-container {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-direction: column;
}

/* Line numbers for code modal */
.line-numbers {
  background: var(--bg-panel);
  color: var(--text-secondary);
  padding: 20px 8px 20px 16px;
  text-align: right;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.6;
  user-select: none;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
  overflow: hidden;
}

.line-numbers .line-num {
  margin: 0;
  padding: 0;
}

.code-container pre {
  margin: 0;
  padding: 20px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-wrap: break-word;
  flex: 1;
  overflow: auto;
  background: var(--bg-code);
}

.code-container code {
  background: none;
  color: inherit;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
}
  background: rgba(255, 107, 107, 0.1);
  border-bottom: 1px solid var(--danger);
  padding: 12px 16px;
  flex-shrink: 0;
  max-height: 30%;
  overflow-y: auto;
}

.warnings-header {
  font-weight: 600;
  color: var(--danger);
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 107, 107, 0.3);
}

.warning-item {
  padding: 8px 12px;
  margin-bottom: 8px;
  border-left: 3px solid var(--danger);
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  font-size: 11px;
}

.warning-item.severity-critical {
  background: rgba(255, 107, 107, 0.1);
}

.warning-item.severity-high {
  background: rgba(255, 166, 87, 0.1);
}

.warning-item.severity-medium {
  background: rgba(255, 217, 61, 0.1);
}

.warning-item.severity-low {
  background: rgba(121, 192, 255, 0.1);
}

.warning-item strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.warning-line {
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  background: rgba(0, 0, 0, 0.3);
  padding: 4px 6px;
  border-radius: 2px;
  margin: 4px 0;
  color: var(--text-secondary);
  word-break: break-all;
}

.warning-desc {
  color: var(--text-secondary);
  font-size: 10px;
  margin-top: 4px;
}

/* Line numbers for code modal */
.line-numbers {
  background: var(--bg-panel);
  color: var(--text-secondary);
  padding: 20px 8px 20px 16px;
  text-align: right;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.6;
  user-select: none;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}

.line-numbers div {
  margin: 0;
  padding: 0;
}

/* Tree lines for folder hierarchy */
.tree-item {
  position: relative;
}

.tree-item::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.tree-item::after {
  content: '';
  position: absolute;
  left: -12px;
  top: 12px;
  width: 12px;
  height: 1px;
  background: var(--border);
}

.tree-children .tree-item:first-child::before {
  top: 12px;
}

.tree-children .tree-item:last-child::before {
  bottom: 50%;
}

.tree-children .tree-item:only-child::before {
  display: none;
}

footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  text-align: center;
  background-color: var(--bg-panel);
  color: var(--text-secondary);
  font-size: 11px;
}