.section { 
  max-width: 960px; 
  margin: 0 auto; 
}

.promo-card { 
  max-width: 820px; 
  margin: 0 auto; 
}

.promo-code { 
  padding: 16px; 
}

.promo-code .code { 
  font-size: 1.5rem; 
  letter-spacing: 0.08em; 
}

/* --- Base typography & layout --- */
:root {
  --max-w: 960px;
  --pad: 16px;
  --fg: #111;
  --muted: #555;
  --border: #e6e6e6;
  --link: #0b57d0;
  --bg: #fff;
}
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad); }

/* Header */
.site-header { border-bottom: 1px solid var(--border); background: #fafafa; }
.site-header .brand { font-weight: 700; text-decoration: none; color: var(--fg); margin-right: 24px; display: inline-block; padding: 12px 0; }
.site-nav a { margin-right: 16px; text-decoration: none; color: var(--link); padding: 12px 0; display: inline-block; }
.site-nav a[aria-current="page"] { font-weight: 600; }

/* Prose */
.prose { max-width: 70ch; padding: 32px 0; }
.prose h1, .prose h2, .prose h3 { line-height: 1.25; margin: 0 0 12px; }
.prose h1 { font-size: 2rem; font-weight: 800; }
.prose p { margin: 0 0 12px; color: var(--fg); }
.prose a { color: var(--link); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 48px; }
.site-footer small { display: inline-block; padding: 14px 0; color: var(--muted); }

/* Optional card width for homepage coupons */
.promo-card { max-width: 820px; margin: 0 auto; }
.hidden { display: none !important; }