:root {
  --bg: #ffffff;
  --fg: #0d1117;
  --muted: #57606a;
  --accent: #4f46e5;
  --accent-soft: #eef2ff;
  --border: #e4e6eb;
  --badge-bg: #f3f4f6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.55;
}

header, main, footer {
  max-width: 70rem;
  margin: 0 auto;
  padding: 0 2rem;
}

header { padding-top: 4rem; padding-bottom: 1rem; }

.crumb {
  margin: 0 0 1.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.crumb a { color: var(--accent); text-decoration: none; }

h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
}

.lead {
  margin: 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.tools {
  list-style: none;
  padding: 0;
  margin: 3rem 0 5rem;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.tool {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.5rem 1.5rem 1.75rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  transition: border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease;
  cursor: pointer;
}
.tool:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 18px rgba(79, 70, 229, 0.08);
  transform: translateY(-2px);
}

.badge {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.2em 0.6em;
  border-radius: 999px;
}

.tool h2 {
  margin: 0.25rem 0 0;
  font-size: 1.15rem;
}

.tool p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  flex: 1;
}

.cta {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}

code {
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.85em;
  background: var(--badge-bg);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

footer {
  padding: 2rem 2rem 4rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}
footer a { color: var(--accent); text-decoration: none; }