/* SEOwithRiz public site — monochrome design system (see docs/DESIGN_SYSTEM.md).
   Plain CSS, no build step: this site is intentionally small and static. */

:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --text: #0a0a0a;
  --text-muted: #525252;
  --text-subtle: #737373;
  --border: #e5e5e5;
  --border-strong: #d4d4d4;
  --primary-bg: #0a0a0a;
  --primary-text: #ffffff;
  --max-width: 880px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1411;
    --surface: #202221;
    --text: #f5f5f5;
    --text-muted: #aab0b9;
    --text-subtle: #8a9099;
    --border: #333547;
    --border-strong: #40425a;
    --primary-bg: #f5f5f5;
    --primary-text: #0a0a0a;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

a { color: inherit; }

header.site-header {
  border-bottom: 1px solid var(--border);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
}

.brand img { height: 28px; width: 28px; border-radius: 6px; }

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-left: 20px;
}
.nav-links a:hover { color: var(--text); }

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--primary-bg);
}
.btn-primary {
  background: var(--primary-bg);
  color: var(--primary-text);
}
.btn-primary:hover { opacity: 0.85; }

main { padding: 64px 0; }

.hero { text-align: center; padding: 40px 0 64px; }
.hero h1 { font-size: 2.4rem; font-weight: 800; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p.lede { font-size: 1.15rem; color: var(--text-muted); max-width: 620px; margin: 0 auto 32px; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.feature {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
}
.feature h3 { margin: 0 0 8px; font-size: 1.05rem; }
.feature p { margin: 0; color: var(--text-muted); font-size: 0.95rem; }

article.legal {
  max-width: 720px;
  margin: 0 auto;
}
article.legal h1 { font-size: 1.8rem; margin-bottom: 4px; }
article.legal .meta { color: var(--text-subtle); font-size: 0.9rem; margin-bottom: 32px; }
article.legal h2 { font-size: 1.15rem; margin-top: 36px; }
article.legal p, article.legal li { color: var(--text-muted); }
article.legal .callout {
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 0.9rem;
  color: var(--text-subtle);
  background: var(--surface);
  margin: 24px 0;
}

footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--text-subtle);
  font-size: 0.88rem;
}
footer.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
}
footer.site-footer a { color: var(--text-subtle); text-decoration: underline; }