:root {
  color-scheme: light;
  --bg: #eef1f5;
  --card-bg: #ffffff;
  --text: #1c2430;
  --muted-text: #6b7280;
  --border: #d7dce3;
  --accent: #2f6fed;
  --code-bg: #f4f6f8;
  --danger: #d64545;
  --danger-bg: #fbeceb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex;
  justify-content: center;
}

.setup {
  width: 100%;
  max-width: 680px;
  padding: 32px 24px 64px;
}

h1 {
  font-size: 22px;
  margin: 0 0 12px;
}

h2 {
  font-size: 17px;
  margin: 0 0 12px;
}

p {
  line-height: 1.55;
}

code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.9em;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  overflow-x: auto;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
}

a {
  color: var(--accent);
}

.notice {
  background: var(--danger-bg);
  border: 1px solid var(--danger);
  border-radius: 8px;
  padding: 14px 18px;
  margin: 0 0 20px;
}

.notice[hidden] {
  display: none;
}

.notice p {
  margin: 0;
  line-height: 1.55;
}

.tabs {
  display: flex;
  gap: 8px;
  margin: 24px 0 20px;
  border-bottom: 1px solid var(--border);
}

.tab {
  padding: 10px 16px;
  border: none;
  background: none;
  color: var(--muted-text);
  font-size: 14px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab[aria-selected="true"] {
  color: var(--text);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 20px;
}

.panel[hidden] {
  display: none;
}

.panel ol {
  padding-left: 20px;
  margin: 0;
}

.panel li {
  margin-bottom: 18px;
  line-height: 1.55;
}

.panel li:last-child {
  margin-bottom: 0;
}

.panel--always {
  border-color: #c7d2e0;
}

.step-satisfied {
  color: #1f7a3d;
}

.step-satisfied::before {
  content: "\2713  ";
  font-weight: 700;
}

.detected-version {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}