/* One stylesheet, system fonts only: the site makes no third-party requests. */
:root {
  --bg: #ffffff;
  --fg: #15171a;
  --muted: #5f6368;
  --accent: #2563eb;
  --accent-fg: #ffffff;
  --card: #f5f6f8;
  --border: #e3e5e8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --fg: #e8eaed;
    --muted: #9aa0a6;
    --accent: #60a5fa;
    --accent-fg: #0f1115;
    --card: #171a21;
    --border: #2a2e37;
  }
}

* { box-sizing: border-box; }
html { color-scheme: light dark; }
body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
}
a { color: var(--accent); }

.site-header, main, footer { max-width: 56rem; margin: 0 auto; padding: 0 1.25rem; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}
.brand { font-weight: 700; font-size: 1.125rem; color: var(--fg); text-decoration: none; }
nav a { margin-left: 1.25rem; color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--fg); }

.hero { padding: 4rem 0 3rem; text-align: center; }
.hero h1 { margin: 0 0 1rem; font-size: clamp(2.25rem, 6vw, 3.5rem); line-height: 1.1; letter-spacing: -0.02em; }
.lede { max-width: 36rem; margin: 0 auto 2rem; font-size: 1.25rem; color: var(--muted); }
.stores { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }
.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 0.75rem;
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 600;
  text-decoration: none;
}

.features {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  padding-bottom: 3rem;
}
.features > div { padding: 1.5rem; background: var(--card); border: 1px solid var(--border); border-radius: 1rem; }
.features h2 { margin: 0 0 0.5rem; font-size: 1.125rem; }
.features p { margin: 0; color: var(--muted); }

article { max-width: 42rem; padding: 2rem 0 4rem; }
article h1 { font-size: 2rem; line-height: 1.2; letter-spacing: -0.02em; }
article h2 { margin-top: 2rem; font-size: 1.25rem; }
article h3 { margin-top: 1.5rem; font-size: 1.0625rem; }
.updated { color: var(--muted); font-size: 0.9375rem; }

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9375rem;
}
footer nav a { margin: 0 1.25rem 0 0; }
footer p { margin: 0; }