:root {
  color-scheme: light dark;
  --bg: #f6f8fa;
  --panel: #ffffff;
  --border: #d0d7de;
  --muted: #57606a;
  --text: #24292f;
  --link: #0969da;
  --terminal-bg: #0d1117;
  --terminal-text: #c9d1d9;
  --terminal-border: #30363d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.demo-shell {
  min-height: 100vh;
  padding: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 12px;
}

.demo-pane {
  min-width: 0;
  min-height: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.demo-pane.is-active {
  outline: 2px solid var(--link);
  outline-offset: 1px;
}

.pane-header {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: #f6f8fa;
  font-weight: 600;
}

.pane-body {
  padding: 12px;
  overflow: auto;
  min-height: 0;
  flex: 1;
}

.terminal-pane .pane-body {
  display: flex;
  flex-direction: column;
}

.npm-header {
  border-left: 4px solid #cb3837;
  padding-left: 10px;
}

.github-header {
  border-left: 4px solid #24292f;
  padding-left: 10px;
}

.package-title,
.repo-title {
  margin: 0 0 4px;
  font-size: 18px;
}

.version-select {
  font: inherit;
  padding: 3px 6px;
}

.readme-card {
  margin-top: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.readme-card h1,
.readme-card h2,
.readme-card h3 { margin-top: 0; }
.readme-card a { color: var(--link); }
.readme-card code {
  padding: 0.15em 0.35em;
  border-radius: 4px;
  background: rgba(175,184,193,0.2);
}

.empty-readme-note h3 {
  margin: 0 0 6px;
}

.empty-readme-note p {
  margin: 8px 0 0;
}

.empty-readme-note ol {
  margin: 8px 0 0;
  padding-left: 20px;
}

.empty-readme-note li {
  margin: 4px 0;
}

.empty-readme-note code {
  white-space: nowrap;
}

.editor-textarea {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}

.terminal-pane.dark {
  background: var(--terminal-bg);
  color: var(--terminal-text);
  border-color: var(--terminal-border);
}

.terminal-pane.dark .pane-header {
  background: #161b22;
  border-color: var(--terminal-border);
  color: var(--terminal-text);
}

.terminal-pane.dark button,
.terminal-pane.dark input {
  background: #21262d;
  color: var(--terminal-text);
  border-color: var(--terminal-border);
}

.command-output {
  margin: 0;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(175,184,193,0.1);
  color: var(--text);
  font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
  min-height: 4em;
}

.terminal-pane.dark .command-output {
  background: #010409;
  color: var(--terminal-text);
  border-color: var(--terminal-border);
}

.status-line {
  font-size: 12px;
  padding: 6px 2px 2px;
  min-height: 1.6em;
  border-top: 1px solid var(--border);
  margin-top: 6px;
}

.terminal-pane.dark .status-line {
  color: #8b949e;
  border-top-color: var(--terminal-border);
}

.terminal-row {
  display: flex;
  gap: 6px;
}

.terminal-row input {
  flex: 1;
  min-width: 0;
  font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  padding: 7px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

button {
  cursor: pointer;
  font: inherit;
  border: 1px solid var(--border);
  background: #f6f8fa;
  border-radius: 6px;
  padding: 6px 9px;
}

.small-button {
  font-size: 12px;
  padding: 3px 7px;
}

.muted { color: var(--muted); }
.stack { display: grid; gap: 10px; }

.resolver-links {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.link-button {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--link);
  cursor: pointer;
  font-size: 13px;
  padding: 4px 10px;
  text-align: left;
  width: 100%;
}

.link-button:hover {
  background: var(--hover-bg, rgba(0,0,0,0.05));
}

.terminal-pane.dark .link-button {
  color: var(--link);
  border-color: var(--border);
}

.terminal-pane.dark .link-button:hover {
  background: rgba(255,255,255,0.07);
}

.command-palette {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 6px;
}


.cmd-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}

.cmd-group-label {
  font-size: 11px;
  color: var(--muted);
  min-width: 80px;
}

.cmd-btn {
  font: 12px/1.3 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  padding: 3px 7px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: #f6f8fa;
  cursor: pointer;
  white-space: nowrap;
}

.cmd-btn.is-selected {
  background: #ddf4ff;
  border-color: #54aeff;
  color: #0550ae;
}

.terminal-pane.dark .cmd-btn {
  background: #21262d;
  color: var(--terminal-text);
  border-color: var(--terminal-border);
}

.terminal-pane.dark .cmd-btn.is-selected {
  background: #1f3044;
  border-color: #388bfd;
  color: #79c0ff;
}

.terminal-pane.dark .cmd-group-label {
  color: #8b949e;
}