:root {
  color-scheme: light dark;
  --bg: #fafaf9;
  --surface: #ffffff;
  --ink: #1a1a1a;
  --ink-2: #4a4a4a;
  --ink-3: #767676;
  --border: #e7e5e4;
  --accent: #1a1a1a;
  --accent-ink: #ffffff;
  --max: 760px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f0f;
    --surface: #161616;
    --ink: #f5f5f4;
    --ink-2: #c5c5c4;
    --ink-3: #8a8a8a;
    --border: #262626;
    --accent: #f5f5f4;
    --accent-ink: #0f0f0f;
  }
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, system-ui, sans-serif;
  letter-spacing: -0.01em;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px max(20px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 18px; color: var(--ink); text-decoration: none; }
nav a {
  color: var(--ink-2);
  text-decoration: none;
  margin-left: 18px;
  font-size: 14px;
}
nav a:hover { color: var(--ink); }
main { padding: 0 max(20px, calc((100vw - var(--max)) / 2)); }
.hero { padding: 56px 0 32px; }
h1 { font-size: clamp(30px, 6vw, 44px); line-height: 1.05; letter-spacing: -0.04em; margin: 0 0 16px; }
h2 { font-size: 20px; letter-spacing: -0.02em; margin: 24px 0 8px; }
h3 { font-size: 16px; margin: 16px 0 6px; }
p { margin: 0 0 14px; color: var(--ink-2); }
.cta-row { display: flex; gap: 10px; margin-top: 24px; }
.cta {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}
.features { display: grid; gap: 16px; grid-template-columns: 1fr; padding: 16px 0 8px; }
@media (min-width: 640px) { .features { grid-template-columns: 1fr 1fr 1fr; } }
.features article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
}
.disclaimer { margin: 24px 0; padding: 16px 20px; border-left: 3px solid var(--ink); background: var(--surface); border-radius: 4px; }
footer {
  padding: 32px max(20px, calc((100vw - var(--max)) / 2));
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--ink-3);
  text-align: center;
}
footer a { color: var(--ink-2); }

article.legal h2 { margin-top: 28px; }
article.legal p, article.legal li { color: var(--ink-2); }
article.legal ul { padding-left: 22px; }
article.legal { padding: 24px 0 64px; }
article.legal h1 { font-size: clamp(28px, 5vw, 36px); }
article.legal .meta { color: var(--ink-3); font-size: 13px; margin-bottom: 28px; }