:root {
  --bg: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --accent: #6d3fd1;
  --card: #f6f4fb;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14121c;
    --text: #ece9f5;
    --muted: #a4a0b5;
    --accent: #a585f0;
    --card: #1f1b2b;
  }
}

* { box-sizing: border-box; }

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

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 16px;
}

.top {
  border-bottom: 1px solid var(--card);
  padding: 14px 0;
}

.top .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.brand {
  font-weight: 700;
  color: var(--accent);
}

nav a {
  color: var(--text);
  text-decoration: none;
  margin-left: 14px;
}

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

main { padding: 24px 0; }

h1 { font-size: 1.9rem; margin-top: 0.5em; }
h2 { font-size: 1.25rem; margin-top: 1.6em; }

.hero p { font-size: 1.05rem; color: var(--muted); }

.btn {
  display: inline-block;
  margin-top: 8px;
  padding: 10px 18px;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
}

.card {
  background: var(--card);
  border-radius: 12px;
  padding: 16px 20px;
}

.features li { margin: 6px 0; }

code, pre {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.92rem;
  word-break: break-all;
}

pre {
  background: var(--card);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  white-space: pre-wrap;
}

.small { font-size: 0.85rem; color: var(--muted); }

footer {
  border-top: 1px solid var(--card);
  padding: 16px 0;
  color: var(--muted);
  font-size: 0.9rem;
}