:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #1c1f24;
  --muted: #5b6370;
  --border: #dfe3e8;
  --accent: #2856d9;
  --accent-soft: #e8eefc;
  --accent-text: #ffffff;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --surface: #1a1d23;
    --text: #e8eaee;
    --muted: #9ba2ae;
    --border: #2c313a;
    --accent: #7b97ff;
    --accent-soft: #1f2840;
    --accent-text: #0d1020;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, 'Segoe UI', sans-serif;
}

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

.wrap {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1rem;
}

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

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.logo {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.logo span { color: var(--accent); }

nav a {
  margin-left: 1rem;
  color: var(--muted);
  text-decoration: none;
}

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

.hero { padding: 4rem 0 3rem; }

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
  margin: 0 0 1rem;
}

.hero p {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 40rem;
  margin: 0 0 1.75rem;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-text);
  padding: 0.7rem 1.3rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
}

.note {
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: 0.75rem;
}

section { padding: 2.5rem 0; }

section h2 {
  font-size: 1.6rem;
  margin: 0 0 1.25rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
}

.card h3 { margin: 0 0 0.4rem; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); }

.step {
  display: inline-block;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  text-align: center;
  line-height: 1.8rem;
  margin-bottom: 0.5rem;
}

.callout {
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
}

.callout p { margin: 0.4rem 0 0; }

.legal {
  max-width: 46rem;
  padding: 2.5rem 1rem 3rem;
}

.legal h1 { margin-top: 0; }
.legal h2 { font-size: 1.25rem; margin-top: 2rem; }
.legal .updated { color: var(--muted); }

footer.site {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

footer.site a { color: var(--muted); margin-right: 1rem; }
footer.site p { margin: 0.5rem 0 0; }