:root {
  --violet: #7c3aed;
  --violet-dark: #6d28d9;
  --indigo: #4f46e5;
  --ink: #0f172a;
  --muted: #64748b;
  --bg: #faf9fd;
  --surface: #ffffff;
  --border: #e9e4f9;
  --maxw: 1100px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}

h1, h2, h3 {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}

a { color: var(--violet); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- header / nav ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand:hover { text-decoration: none; }
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--violet), var(--indigo));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}
.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
}
.nav-links { margin-left: auto; display: flex; gap: 22px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-size: 0.95rem; font-weight: 500; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--violet); }

/* ---------- layout ---------- */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { padding: 44px 0; border-top: 1px solid var(--border); }
section:first-of-type { border-top: none; }

.hero { padding: 60px 0 48px; }
.hero h1 { font-size: clamp(1.9rem, 4.6vw, 2.9rem); margin-bottom: 18px; max-width: 18ch; }
.hero p { font-size: 1.12rem; color: var(--muted); max-width: 62ch; margin: 0 0 14px; }

.page-head { padding: 52px 0 28px; }
.page-head h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); margin-bottom: 12px; }
.page-head p.sub { color: var(--muted); max-width: 62ch; margin: 0; }

h2 { font-size: 1.5rem; margin-bottom: 12px; }
h3 { font-size: 1.12rem; margin: 26px 0 8px; }
p { margin: 0 0 16px; }
.prose { max-width: 70ch; }
.prose ul, .prose ol { max-width: 70ch; padding-left: 22px; margin: 0 0 16px; }
.prose li { margin-bottom: 8px; }
.lead { color: var(--muted); }

/* ---------- cards ---------- */
.cards { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px;
}
.card h3 { margin-top: 0; font-size: 1.18rem; }
.card p { color: var(--muted); margin-bottom: 0; }
.card p + .btn { margin-top: 18px; }

.btn {
  display: inline-block;
  background: var(--violet);
  color: #fff;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.95rem;
}
.btn:hover { background: var(--violet-dark); text-decoration: none; }

dl.faq dt { font-weight: 600; margin-top: 20px; }
dl.faq dd { margin: 6px 0 0; color: var(--muted); max-width: 70ch; }

.meta-note {
  font-size: 0.9rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  max-width: 70ch;
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 36px;
  background: var(--surface);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 30px 24px 38px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
  color: var(--muted);
  font-size: 0.88rem;
}
.footer-links { margin-left: auto; display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--violet); }

@media (max-width: 620px) {
  .nav-links { margin-left: 0; width: 100%; gap: 16px; }
  .footer-links { margin-left: 0; width: 100%; }
}