:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --accent: #3b6fd6;
  --border: #dddddd;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12141a;
    --fg: #eaeaea;
    --accent: #7aa2ff;
    --border: #333333;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0 auto;
  max-width: 720px;
  padding: 2rem 1.5rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

header {
  margin-bottom: 2rem;
}

header h1 {
  margin-bottom: 0.25rem;
}

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

.tool-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.tool-list li {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}

.tool-list a {
  font-weight: 600;
  text-decoration: none;
}

.tool-list a:hover {
  text-decoration: underline;
}

.tool-list p {
  margin: 0.25rem 0 0;
  opacity: 0.8;
  font-size: 0.9rem;
}