:root {
  --bg: #ffffff;
  --fg: #18181b;
  --muted: #71717a;
  --border: #e4e4e7;
  --surface: #f4f4f5;
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --accent-soft: #f5f3ff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #09090b;
    --fg: #fafafa;
    --muted: #a1a1aa;
    --border: #27272a;
    --surface: #18181b;
    --accent-soft: #2e1065;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
}

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

.nav, .foot, main {
  max-width: 960px;
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 700;
  font-size: 20px;
  text-decoration: none;
}

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.btn:hover { background: var(--accent-hover); }
.btn.small { padding: 8px 16px; font-size: 14px; }

.hero { text-align: center; padding: 64px 0 48px; }

.pill {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
}

h1 { font-size: clamp(32px, 6vw, 52px); line-height: 1.15; margin: 20px 0 16px; }
.lead { font-size: 19px; color: var(--muted); max-width: 620px; margin: 0 auto 28px; }
.muted { color: var(--muted); }
.small-text { font-size: 14px; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding-bottom: 48px;
}

.card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }

.shortcuts { padding-bottom: 48px; }
table { border-collapse: collapse; }
td { padding: 8px 24px 8px 0; border-bottom: 1px solid var(--border); }

kbd {
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  font-size: 13px;
}

.doc { max-width: 720px; padding-top: 24px; padding-bottom: 48px; }
.doc h1 { font-size: 36px; margin-bottom: 4px; }
.doc h2 { font-size: 20px; margin-top: 32px; }

.foot {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  padding-bottom: 32px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}