:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #5a5a5a;
  --accent: #1a73e8;
  --card: #f5f7fa;
  --border: #e2e6ea;
  --maxw: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --fg: #e8eaed;
    --muted: #9aa0a6;
    --accent: #8ab4f8;
    --card: #171a21;
    --border: #2a2f38;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

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

h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 .5rem; }
h2 { font-size: 1.25rem; margin: 2.25rem 0 .5rem; }
p, li { color: var(--fg); }
.muted { color: var(--muted); }

.tagline { font-size: 1.15rem; color: var(--muted); margin: 0 0 2rem; }

.logo {
  display: inline-block;
  width: 56px; height: 56px;
  margin-bottom: 1rem;
}

.steps { padding-left: 1.2rem; }
.steps li { margin: .35rem 0; }

.features { list-style: none; padding: 0; display: grid; gap: .5rem; }
.features li { padding: .75rem 1rem; background: var(--card); border: 1px solid var(--border); border-radius: 10px; }

.cta {
  display: inline-block;
  margin: .5rem .5rem .5rem 0;
  padding: .7rem 1.25rem;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
}
.cta.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }

footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .9rem;
}
footer a { color: var(--muted); }