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

:root {
  --bg: #1e1e2e;
  --surface: #282838;
  --text: #cdd6f4;
  --text-muted: #6c7086;
  --accent: #89b4fa;
  --accent-hover: #74c7ec;
  --border: #45475a;
  --green: #a6e3a1;
  --red: #f38ba8;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
}

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

#toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

#toolbar h1 {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

#toolbar-actions {
  display: flex;
  gap: 8px;
}

#model-toolbar {
  padding: 4px 8px;
  font-size: 12px;
  background: var(--border);
  color: var(--text);
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

#toolbar-actions button {
  padding: 4px 12px;
  font-size: 12px;
  background: var(--border);
  color: var(--text);
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

#toolbar-actions button:hover {
  background: var(--accent);
  color: var(--bg);
}

#submit-btn {
  background: var(--accent) !important;
  color: var(--bg) !important;
  font-weight: 600;
}

#submit-btn:hover {
  background: var(--accent-hover) !important;
}

#submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#editor-container {
  flex: 1;
  overflow: hidden;
  min-height: 200px;
}

#editor {
  height: 100%;
}

#editor .cm-editor {
  height: 100%;
}

/* Diff gutter */
.cm-diff-gutter {
  width: 4px !important;
  min-width: 4px !important;
}

.cm-diff-gutter .cm-gutterElement {
  padding: 0 !important;
}

.diff-marker {
  width: 4px;
  height: 100%;
}

.diff-added {
  background: var(--green);
}

.diff-modified {
  background: var(--accent);
}

#editor .cm-scroller {
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 14px;
  line-height: 1.6;
}

/* Terminal panel */
#terminal-container {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 220px;
  border-top: 1px solid var(--border);
}

#terminal-container.collapsed {
  height: auto;
}

#terminal-container.collapsed #terminal-output {
  display: none;
}

#terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}

#terminal-header button {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
  padding: 0 4px;
}

#terminal-header button:hover {
  color: var(--text);
}

#terminal-output {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px;
  background: #11111b;
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-muted);
}

#terminal-output .log-info { color: var(--text-muted); }
#terminal-output .log-success { color: var(--green); }
#terminal-output .log-error { color: var(--red); }
#terminal-output .log-context { color: var(--accent); }
#terminal-output .log-timestamp { color: #585b70; }

#terminal-prompt {
  display: flex;
  align-items: center;
  padding: 4px 12px;
  background: #11111b;
  border-top: 1px solid var(--border);
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 12px;
}

#terminal-prompt-char {
  color: var(--green);
  margin-right: 8px;
}

#terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

#status-bar {
  padding: 4px 16px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
  transition: background 0.3s;
}

#status-bar.loading {
  background: rgba(137, 180, 250, 0.12);
  color: var(--accent);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

#submit-btn:disabled {
  opacity: 0.5;
  cursor: wait;
}

/* Settings dialog */
dialog {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  max-width: 480px;
  width: 90vw;
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.6);
}

dialog h2 {
  margin-bottom: 16px;
  font-size: 18px;
  color: var(--accent);
}

dialog label {
  display: block;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

dialog input,
dialog select,
dialog textarea {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 8px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 14px;
}

dialog textarea {
  resize: vertical;
}

.dialog-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}

.dialog-actions button {
  padding: 8px 16px;
  font-size: 13px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.reset-skill {
  margin-top: 4px;
  padding: 4px 8px;
  font-size: 11px;
  background: var(--border);
  color: var(--text-muted);
  border: none;
  border-radius: 3px;
  cursor: pointer;
}

.reset-skill:hover {
  color: var(--text);
}

#settings-save {
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
}

#settings-cancel {
  background: var(--border);
  color: var(--text);
}

.demo-badge {
  font-size: 10px;
  font-weight: 400;
  background: var(--border);
  color: var(--text-muted);
  padding: 2px 6px;
  border-radius: 3px;
  vertical-align: middle;
}

.demo-notice {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding: 8px;
  background: rgba(137, 180, 250, 0.08);
  border-radius: 4px;
  border-left: 3px solid var(--accent);
}

.demo-notice code {
  display: block;
  margin-top: 4px;
  padding: 4px 8px;
  background: var(--bg);
  border-radius: 3px;
  font-size: 11px;
  color: var(--green);
  user-select: all;
  cursor: pointer;
}