:root {
  color-scheme: light;
  --fg: #1d1d1f;
  --muted: #6b6b70;
  --accent: #1a73e8;
  --ok-bg: #e7f5ec;
  --ok-fg: #1b6d3a;
  --err-bg: #fde7e7;
  --err-fg: #8b1f1f;
  --border: rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: #fafafa;
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

header h1 {
  margin: 0;
  font-size: 2rem;
  letter-spacing: -0.01em;
}

.tagline {
  margin: 0.25rem 0 2rem;
  color: var(--muted);
}

section {
  margin: 2rem 0;
}

h2 {
  font-size: 1.2rem;
  margin: 0 0 0.5rem;
}

h3 {
  font-size: 1rem;
  margin: 1.25rem 0 0.25rem;
  color: var(--muted);
}

p,
ul,
ol {
  margin: 0.5rem 0;
}

ul,
ol {
  padding-left: 1.25rem;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: rgba(0, 0, 0, 0.05);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.hint {
  color: var(--muted);
  font-size: 0.9em;
}

.callout {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin: 0.5rem 0;
}

.callout--ok {
  background: var(--ok-bg);
  color: var(--ok-fg);
}

.callout--err {
  background: var(--err-bg);
  color: var(--err-fg);
}

.setup-screenshot {
  display: block;
  width: 100%;
  margin: 1rem 0 0;
  border: 2px dashed var(--border);
  border-radius: 8px;
  min-height: 160px;
  background: rgba(0, 0, 0, 0.02);
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9em;
}