:root {
  /* {{THEME_VARS}} */
  /* {{BODY_BG_DECL}} */
  /* {{CONTAINER_BG_DECL}} */
  /* {{INFO_BG_DECL}} */
}

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

:root {
  --line-height: 18px; /* 12px font * 1.5 */
}

body {
  font-family:
    ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, "DejaVu Sans Mono", monospace;
  font-size: 12px;
  line-height: var(--line-height);
  color: var(--text);
  background: var(--body-bg);
}

#app {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
#sidebar {
  width: 400px;
  background: var(--container-bg);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  border-right: 1px solid var(--dim);
}

.sidebar-header {
  padding: 8px 12px;
  flex-shrink: 0;
}

.sidebar-controls {
  padding: 8px 8px 4px 8px;
}

.sidebar-search {
  width: 100%;
  box-sizing: border-box;
  padding: 4px 8px;
  font-size: 11px;
  font-family: inherit;
  background: var(--body-bg);
  color: var(--text);
  border: 1px solid var(--dim);
  border-radius: 3px;
}

.sidebar-filters {
  display: flex;
  padding: 4px 8px 8px 8px;
  gap: 4px;
  align-items: center;
  flex-wrap: wrap;
}

.sidebar-search:focus {
  outline: none;
  border-color: var(--accent);
}

.sidebar-search::placeholder {
  color: var(--muted);
}

.filter-btn {
  padding: 3px 8px;
  font-size: 10px;
  font-family: inherit;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--dim);
  border-radius: 3px;
  cursor: pointer;
}

.filter-btn:hover {
  color: var(--text);
  border-color: var(--text);
}

.filter-btn.active {
  background: var(--accent);
  color: var(--body-bg);
  border-color: var(--accent);
}

.sidebar-close {
  display: none;
  padding: 3px 8px;
  font-size: 12px;
  font-family: inherit;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--dim);
  border-radius: 3px;
  cursor: pointer;
  margin-left: auto;
}

.sidebar-close:hover {
  color: var(--text);
  border-color: var(--text);
}

.tree-container {
  flex: 1;
  overflow: auto;
  padding: 4px 0;
}

.tree-node {
  padding: 0 8px;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  font-size: 11px;
  line-height: 13px;
  white-space: nowrap;
}

.tree-node:hover {
  background: var(--selectedBg);
}

.tree-node.active {
  background: var(--selectedBg);
}

.tree-node.active .tree-content {
  font-weight: bold;
}

.tree-node.in-path {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.tree-node:not(.in-path) {
  opacity: 0.5;
}

.tree-node:not(.in-path):hover {
  opacity: 1;
}

.tree-prefix {
  color: var(--muted);
  flex-shrink: 0;
  font-family: monospace;
  white-space: pre;
}

.tree-marker {
  color: var(--accent);
  flex-shrink: 0;
}

.tree-content {
  color: var(--text);
}

.tree-role-user {
  color: var(--accent);
}

.tree-role-assistant {
  color: var(--success);
}

.tree-role-tool {
  color: var(--muted);
}

.tree-muted {
  color: var(--muted);
}

.tree-error {
  color: var(--error);
}

.tree-compaction {
  color: var(--borderAccent);
}

.tree-branch-summary {
  color: var(--warning);
}

.tree-custom-message {
  color: var(--customMessageLabel);
}

.tree-status {
  padding: 4px 12px;
  font-size: 10px;
  color: var(--muted);
  flex-shrink: 0;
}

/* Main content */
#content {
  flex: 1;
  overflow-y: auto;
  padding: var(--line-height) calc(var(--line-height) * 2);
  display: flex;
  flex-direction: column;
  align-items: center;
}

#content > * {
  width: 100%;
  max-width: 800px;
}

/* Help bar */
.help-bar {
  font-size: 11px;
  color: var(--warning);
  margin-bottom: var(--line-height);
  display: flex;
  align-items: center;
  gap: 12px;
}

.download-json-btn {
  font-size: 10px;
  padding: 2px 8px;
  background: var(--container-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
}

.download-json-btn:hover {
  background: var(--hover);
  border-color: var(--borderAccent);
}

/* Header */
.header {
  background: var(--container-bg);
  border-radius: 4px;
  padding: var(--line-height);
  margin-bottom: var(--line-height);
}

.header h1 {
  font-size: 12px;
  font-weight: bold;
  color: var(--borderAccent);
  margin-bottom: var(--line-height);
}

.header-info {
  display: flex;
  flex-direction: column;
  gap: 0;
  font-size: 11px;
}

.info-item {
  color: var(--dim);
  display: flex;
  align-items: baseline;
}

.info-label {
  font-weight: 600;
  margin-right: 8px;
  min-width: 100px;
}

.info-value {
  color: var(--text);
  flex: 1;
}

/* Messages */
#messages {
  display: flex;
  flex-direction: column;
  gap: var(--line-height);
}

.message-timestamp {
  font-size: 10px;
  color: var(--dim);
  opacity: 0.8;
}

.user-message {
  background: var(--userMessageBg);
  color: var(--userMessageText);
  padding: var(--line-height);
  border-radius: 4px;
  position: relative;
}

.assistant-message {
  padding: 0;
  position: relative;
}

/* Copy link button - appears on hover */
.copy-link-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  padding: 6px;
  background: var(--container-bg);
  border: 1px solid var(--dim);
  border-radius: 4px;
  color: var(--muted);
  cursor: pointer;
  opacity: 0;
  transition:
    opacity 0.15s,
    background 0.15s,
    color 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.user-message:hover .copy-link-btn,
.assistant-message:hover .copy-link-btn {
  opacity: 1;
}

.copy-link-btn:hover {
  background: var(--accent);
  color: var(--body-bg);
  border-color: var(--accent);
}

.copy-link-btn.copied {
  background: var(--success, #22c55e);
  color: white;
  border-color: var(--success, #22c55e);
}

/* Highlight effect for deep-linked messages */
.user-message.highlight,
.assistant-message.highlight {
  animation: highlight-pulse 2s ease-out;
}

@keyframes highlight-pulse {
  0% {
    box-shadow: 0 0 0 3px var(--accent);
  }
  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

.assistant-message > .message-timestamp {
  padding-left: var(--line-height);
}

.assistant-text {
  padding: var(--line-height);
  padding-bottom: 0;
}

.message-timestamp + .assistant-text,
.message-timestamp + .thinking-block {
  padding-top: 0;
}

.thinking-block + .assistant-text {
  padding-top: 0;
}

.thinking-text {
  padding: var(--line-height);
  color: var(--thinkingText);
  font-style: italic;
  white-space: pre-wrap;
}

.message-timestamp + .thinking-block .thinking-text,
.message-timestamp + .thinking-block .thinking-collapsed {
  padding-top: 0;
}

.thinking-collapsed {
  display: none;
  padding: var(--line-height);
  color: var(--thinkingText);
  font-style: italic;
}

/* Tool execution */
.tool-execution {
  padding: var(--line-height);
  border-radius: 4px;
}

.tool-execution + .tool-execution {
  margin-top: var(--line-height);
}

.assistant-text + .tool-execution {
  margin-top: var(--line-height);
}

.tool-execution.pending {
  background: var(--toolPendingBg);
}
.tool-execution.success {
  background: var(--toolSuccessBg);
}
.tool-execution.error {
  background: var(--toolErrorBg);
}

.tool-header,
.tool-name {
  font-weight: bold;
}

.tool-path {
  color: var(--accent);
  word-break: break-all;
}

.line-numbers {
  color: var(--warning);
}

.line-count {
  color: var(--dim);
}

.tool-command {
  font-weight: bold;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
  word-break: break-word;
}

.tool-output {
  margin-top: var(--line-height);
  color: var(--toolOutput);
  word-wrap: break-word;
  overflow-wrap: break-word;
  word-break: break-word;
  font-family: inherit;
  overflow-x: auto;
}

.tool-output > div,
.output-preview,
.output-full {
  margin: 0;
  padding: 0;
  line-height: var(--line-height);
}

.tool-output pre {
  margin: 0;
  padding: 0;
  font-family: inherit;
  color: inherit;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.tool-output code {
  padding: 0;
  background: none;
  color: var(--text);
}

.tool-output.expandable {
  cursor: pointer;
}

.tool-output.expandable:hover {
  opacity: 0.9;
}

.tool-output.expandable .output-full {
  display: none;
}

.tool-output.expandable.expanded .output-preview {
  display: none;
}

.tool-output.expandable.expanded .output-full {
  display: block;
}

.ansi-line {
  white-space: pre-wrap;
}

.tool-images {
}

.tool-image {
  max-width: 100%;
  max-height: 500px;
  border-radius: 4px;
  margin: var(--line-height) 0;
}

.expand-hint {
  color: var(--toolOutput);
}

/* Diff */
.tool-diff {
  font-size: 11px;
  overflow-x: auto;
  white-space: pre;
}

.diff-added {
  color: var(--toolDiffAdded);
}
.diff-removed {
  color: var(--toolDiffRemoved);
}
.diff-context {
  color: var(--toolDiffContext);
}

/* Model change */
.model-change {
  padding: 0 var(--line-height);
  color: var(--dim);
  font-size: 11px;
}

.model-name {
  color: var(--borderAccent);
  font-weight: bold;
}

/* Compaction / Branch Summary - matches customMessage colors from TUI */
.compaction {
  background: var(--customMessageBg);
  border-radius: 4px;
  padding: var(--line-height);
  cursor: pointer;
}

.compaction-label {
  color: var(--customMessageLabel);
  font-weight: bold;
}

.compaction-collapsed {
  color: var(--customMessageText);
}

.compaction-content {
  display: none;
  color: var(--customMessageText);
  white-space: pre-wrap;
  margin-top: var(--line-height);
}

.compaction.expanded .compaction-collapsed {
  display: none;
}

.compaction.expanded .compaction-content {
  display: block;
}

/* System prompt */
.system-prompt {
  background: var(--customMessageBg);
  padding: var(--line-height);
  border-radius: 4px;
  margin-bottom: var(--line-height);
}

.system-prompt.expandable {
  cursor: pointer;
}

.system-prompt-header {
  font-weight: bold;
  color: var(--customMessageLabel);
}

.system-prompt-preview {
  color: var(--customMessageText);
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 11px;
  margin-top: var(--line-height);
}

.system-prompt-expand-hint {
  color: var(--muted);
  font-style: italic;
  margin-top: 4px;
}

.system-prompt-full {
  display: none;
  color: var(--customMessageText);
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 11px;
  margin-top: var(--line-height);
}

.system-prompt.expanded .system-prompt-preview,
.system-prompt.expanded .system-prompt-expand-hint {
  display: none;
}

.system-prompt.expanded .system-prompt-full {
  display: block;
}

.system-prompt.provider-prompt {
  border-left: 3px solid var(--warning);
}

.system-prompt-note {
  font-size: 10px;
  font-style: italic;
  color: var(--muted);
  margin-top: 4px;
}

/* Tools list */
.tools-list {
  background: var(--customMessageBg);
  padding: var(--line-height);
  border-radius: 4px;
  margin-bottom: var(--line-height);
}

.tools-header {
  font-weight: bold;
  color: var(--customMessageLabel);
  margin-bottom: var(--line-height);
}

.tool-item {
  font-size: 11px;
}

.tool-item-name {
  font-weight: bold;
  color: var(--text);
}

.tool-item-desc {
  color: var(--dim);
}

.tool-params-hint {
  color: var(--muted);
  font-style: italic;
}

.tool-item:has(.tool-params-hint) {
  cursor: pointer;
}

.tool-params-hint::after {
  content: "[click to show parameters]";
}

.tool-item.params-expanded .tool-params-hint::after {
  content: "[hide parameters]";
}

.tool-params-content {
  display: none;
  margin-top: 4px;
  margin-left: 12px;
  padding-left: 8px;
  border-left: 1px solid var(--dim);
}

.tool-item.params-expanded .tool-params-content {
  display: block;
}

.tool-param {
  margin-bottom: 4px;
  font-size: 11px;
}

.tool-param-name {
  font-weight: bold;
  color: var(--text);
}

.tool-param-type {
  color: var(--dim);
  font-style: italic;
}

.tool-param-required {
  color: var(--warning, #e8a838);
  font-size: 10px;
}

.tool-param-optional {
  color: var(--dim);
  font-size: 10px;
}

.tool-param-desc {
  color: var(--dim);
  margin-left: 8px;
}

/* Hook/custom messages */
.hook-message {
  background: var(--customMessageBg);
  color: var(--customMessageText);
  padding: var(--line-height);
  border-radius: 4px;
}

.hook-type {
  color: var(--customMessageLabel);
  font-weight: bold;
}

/* Branch summary */
.branch-summary {
  background: var(--customMessageBg);
  padding: var(--line-height);
  border-radius: 4px;
}

.branch-summary-header {
  font-weight: bold;
  color: var(--borderAccent);
}

/* Error */
.error-text {
  color: var(--error);
  padding: 0 var(--line-height);
}
.tool-error {
  color: var(--error);
}

/* Images */
.message-images {
  margin-bottom: 12px;
}

.message-image {
  max-width: 100%;
  max-height: 400px;
  border-radius: 4px;
  margin: var(--line-height) 0;
}

/* Markdown content */
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  color: var(--mdHeading);
  margin: var(--line-height) 0 0 0;
  font-weight: bold;
}

.markdown-content h1 {
  font-size: 1em;
}
.markdown-content h2 {
  font-size: 1em;
}
.markdown-content h3 {
  font-size: 1em;
}
.markdown-content h4 {
  font-size: 1em;
}
.markdown-content h5 {
  font-size: 1em;
}
.markdown-content h6 {
  font-size: 1em;
}
.markdown-content p {
  margin: 0;
}
.markdown-content p + p {
  margin-top: var(--line-height);
}

.markdown-content a {
  color: var(--mdLink);
  text-decoration: underline;
}

.markdown-content code {
  background: rgba(128, 128, 128, 0.2);
  color: var(--mdCode);
  padding: 0 4px;
  border-radius: 3px;
  font-family: inherit;
}

.markdown-content pre {
  background: transparent;
  margin: var(--line-height) 0;
  overflow-x: auto;
}

.markdown-content pre code {
  display: block;
  background: none;
  color: var(--text);
}

.markdown-content blockquote {
  border-left: 3px solid var(--mdQuoteBorder);
  padding-left: var(--line-height);
  margin: var(--line-height) 0;
  color: var(--mdQuote);
  font-style: italic;
}

.markdown-content ul,
.markdown-content ol {
  margin: var(--line-height) 0;
  padding-left: calc(var(--line-height) * 2);
}

.markdown-content li {
  margin: 0;
}
.markdown-content li::marker {
  color: var(--mdListBullet);
}

.markdown-content hr {
  border: none;
  border-top: 1px solid var(--mdHr);
  margin: var(--line-height) 0;
}

.markdown-content table {
  border-collapse: collapse;
  margin: 0.5em 0;
  width: 100%;
}

.markdown-content th,
.markdown-content td {
  border: 1px solid var(--mdCodeBlockBorder);
  padding: 6px 10px;
  text-align: left;
}

.markdown-content th {
  background: rgba(128, 128, 128, 0.1);
  font-weight: bold;
}

.markdown-content img {
  max-width: 100%;
  border-radius: 4px;
}

/* Syntax highlighting */
.hljs {
  background: transparent;
  color: var(--text);
}
.hljs-comment,
.hljs-quote {
  color: var(--syntaxComment);
}
.hljs-keyword,
.hljs-selector-tag {
  color: var(--syntaxKeyword);
}
.hljs-number,
.hljs-literal {
  color: var(--syntaxNumber);
}
.hljs-string,
.hljs-doctag {
  color: var(--syntaxString);
}
/* Function names: hljs v11 uses .hljs-title.function_ compound class */
.hljs-function,
.hljs-title,
.hljs-title.function_,
.hljs-section,
.hljs-name {
  color: var(--syntaxFunction);
}
/* Types: hljs v11 uses .hljs-title.class_ for class names */
.hljs-type,
.hljs-class,
.hljs-title.class_,
.hljs-built_in {
  color: var(--syntaxType);
}
.hljs-attr,
.hljs-variable,
.hljs-variable.language_,
.hljs-params,
.hljs-property {
  color: var(--syntaxVariable);
}
.hljs-meta,
.hljs-meta .hljs-keyword,
.hljs-meta .hljs-string {
  color: var(--syntaxKeyword);
}
.hljs-operator {
  color: var(--syntaxOperator);
}
.hljs-punctuation {
  color: var(--syntaxPunctuation);
}
.hljs-subst {
  color: var(--text);
}

/* Footer */
.footer {
  margin-top: 48px;
  padding: 20px;
  text-align: center;
  color: var(--dim);
  font-size: 10px;
}

/* Mobile */
#hamburger {
  display: none;
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 3px 8px;
  font-size: 12px;
  font-family: inherit;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--dim);
  border-radius: 3px;
  cursor: pointer;
}

#hamburger:hover {
  color: var(--text);
  border-color: var(--text);
}

#sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 98;
}

@media (max-width: 900px) {
  #sidebar {
    position: fixed;
    left: -400px;
    width: 400px;
    top: 0;
    bottom: 0;
    height: 100vh;
    z-index: 99;
    transition: left 0.3s;
  }

  #sidebar.open {
    left: 0;
  }

  #sidebar-overlay.open {
    display: block;
  }

  #hamburger {
    display: block;
  }

  .sidebar-close {
    display: block;
  }

  #content {
    padding: var(--line-height) 16px;
  }

  #content > * {
    max-width: 100%;
  }
}

@media (max-width: 500px) {
  #sidebar {
    width: 100vw;
    left: -100vw;
  }
}

@media print {
  #sidebar,
  #sidebar-toggle {
    display: none !important;
  }
  body {
    background: white;
    color: black;
  }
  #content {
    max-width: none;
  }
}
