/* Reset and base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #fafaf8;
  --fg: #1a1a1a;
  --muted: #5a5a5a;
  --border: #d4d0c8;
  --accent: #6b4226;
  --accent-light: #8b6240;
  --surface: #ffffff;
  --code-bg: #f0ede6;
  --max-w: 800px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  font-size: 16px;
}

/* Header */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-title {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
  text-decoration: none;
}

nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

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

/* Main */
main {
  max-width: var(--max-w);
  margin: 2rem auto;
  padding: 0 1.5rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding: 1.5rem;
  text-align: center;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-inner a { color: var(--accent); text-decoration: none; }
.footer-inner a:hover { text-decoration: underline; }
.footer-inner p + p { margin-top: 0.5rem; }

/* Typography */
h1 { font-size: 1.75rem; margin-bottom: 1rem; line-height: 1.3; }
h2 { font-size: 1.35rem; margin: 2rem 0 0.75rem; border-bottom: 1px solid var(--border); padding-bottom: 0.35rem; }
h3 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; }
p { margin-bottom: 1rem; }
ul, ol { margin: 0 0 1rem 1.5rem; }
li { margin-bottom: 0.35rem; }
a { color: var(--accent); }
a:hover { color: var(--accent-light); }
code { background: var(--code-bg); padding: 0.15em 0.4em; border-radius: 3px; font-size: 0.9em; }
pre { background: var(--code-bg); padding: 1rem; border-radius: 4px; overflow-x: auto; margin-bottom: 1rem; }
pre code { background: none; padding: 0; }
hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }
blockquote { border-left: 3px solid var(--accent); padding-left: 1rem; color: var(--muted); margin-bottom: 1rem; }

/* Breadcrumb */
.breadcrumb { font-size: 0.85rem; color: var(--muted); margin-bottom: 1.5rem; }
.breadcrumb a { color: var(--accent); text-decoration: none; }

/* Cards (for guide index) */
.card-grid { display: grid; gap: 1rem; margin-top: 1rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: var(--fg);
  transition: border-color 0.15s;
}

.card:hover { border-color: var(--accent); }
.card h3 { margin: 0 0 0.25rem; font-size: 1rem; color: var(--accent); }
.card p { margin: 0; font-size: 0.9rem; color: var(--muted); }

/* Store badges area */
.store-links { display: flex; gap: 1rem; margin: 1.5rem 0; flex-wrap: wrap; }

.store-link {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1.25rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.store-link:hover { background: var(--accent-light); color: #fff; }

/* Privacy callout */
.callout {
  background: var(--code-bg);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 4px 4px 0;
}

/* FAQ */
details { margin-bottom: 1rem; }
details summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.5rem 0;
  list-style: none;
}
details summary::before { content: "+ "; font-weight: 700; color: var(--accent); }
details[open] summary::before { content: "- "; }
details > *:not(summary) { padding-left: 1rem; }

/* Responsive */
@media (max-width: 600px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  h1 { font-size: 1.4rem; }
}