:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --bg-alt: #f6f7fb;
  --text: #16181d;
  --text-muted: #5b6069;
  --border: #e7e8ec;
  --accent: #4f46e5;
  --accent-ink: #ffffff;
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101114;
    --bg-alt: #17181d;
    --text: #eceef1;
    --text-muted: #9a9ea8;
    --border: #2a2c33;
    --accent: #8180ff;
    --accent-ink: #10101a;
  }
}

* { box-sizing: border-box; }

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

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

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
nav.site {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
nav.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--text);
}
.logo .mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #22c1c3);
  display: inline-block;
}
.navlinks {
  display: flex;
  gap: 22px;
}
.navlinks a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
}
.navlinks a:hover { color: var(--text); }

/* Hero */
.hero {
  padding: 72px 0 56px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.hero p.lede {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 0 28px;
}
.badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

/* Feature grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin: 40px 0 64px;
}
.feature {
  border: 1px solid var(--border);
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 20px;
}
.feature h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}
.feature p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Data use section */
.datause {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  background: var(--bg-alt);
  margin-bottom: 64px;
}
.datause h2 {
  margin-top: 0;
  font-size: 1.2rem;
}

/* Legal pages */
main.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}
main.legal h1 {
  font-size: 1.8rem;
  margin-bottom: 4px;
}
.updated {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0;
  margin-bottom: 32px;
}
main.legal h2 {
  font-size: 1.1rem;
  margin-top: 2.2em;
  margin-bottom: 0.6em;
}
main.legal p { margin: 0 0 1em; }

footer.site {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}
footer.site .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  justify-content: space-between;
}
footer.site a {
  color: var(--text-muted);
  text-decoration: none;
}
footer.site a:hover { color: var(--text); }