:root {
  --bg: #ffffff;
  --surface: #f5f7fb;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --accent: #4f46e5;
  --accent-text: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --surface: #131a2e;
    --text: #e8ecf5;
    --muted: #9aa6bf;
    --border: #232c45;
    --accent: #818cf8;
    --accent-text: #0b1020;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

a { color: inherit; text-decoration: none; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 16px;
}

.brand { font-weight: 800; font-size: 1.25rem; }
.brand span { color: var(--accent); }

.nav nav { display: flex; align-items: center; gap: 20px; font-size: .95rem; color: var(--muted); }
.nav nav a:hover { color: var(--text); }

main { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

.hero { padding: 72px 0 56px; text-align: center; }
.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--accent);
  font-size: .85rem;
  font-weight: 600;
}
h1 { margin: 0 0 20px; font-size: clamp(2rem, 6vw, 3.5rem); line-height: 1.1; letter-spacing: -.02em; }
.lead { max-width: 620px; margin: 0 auto 32px; color: var(--muted); font-size: 1.125rem; }

.cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  border: 1px solid var(--accent);
}
.btn:hover { opacity: .9; }
.btn-small { padding: 8px 16px; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }

.section { padding: 56px 0; }
.section h2 { margin: 0 0 32px; font-size: clamp(1.5rem, 4vw, 2rem); text-align: center; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.steps li { padding: 24px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; }
.steps h3, .card h3 { margin: 12px 0 8px; font-size: 1.1rem; }
.steps p, .card p { margin: 0; color: var(--muted); }
.num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 700;
}

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { padding: 22px; border: 1px solid var(--border); border-radius: 14px; }
.card h3 { margin-top: 0; }

.final { text-align: center; }
.final p { max-width: 520px; margin: 0 auto 24px; color: var(--muted); }

.footer { margin-top: 32px; padding: 28px 16px; border-top: 1px solid var(--border); text-align: center; color: var(--muted); font-size: .9rem; }
.footer p { margin: 0; }

@media (max-width: 560px) {
  .nav nav a:not(.btn) { display: none; }
  .hero { padding-top: 40px; }
}