:root {
  --bg: #151617;
  --text: #f2f2f2;
  --muted: #b8b8b8;
  --accent: #7fae9b;
  --border: #2f2f2f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 56px 20px;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

header, main, footer {
  max-width: 860px;
  margin: 0 auto;
}

h1 {
  font-size: 32px;
  margin-bottom: 12px;
}

h2 {
  margin: 48px 0 24px;
}

.subtitle {
  color: var(--muted);
}

.start-here {
  margin-top: 48px;
}

.grid {
  display: grid;
  gap: 20px;
}

.tile {
  display: block;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 16px;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(
    180deg,
    rgba(255,255,255,0.03),
    rgba(255,255,255,0.01)
  );
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.tile:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.tile.primary {
  background: rgba(127, 174, 155, 0.12);
}

.tile h3 {
  margin: 0 0 8px;
  color: var(--accent);
}

.tile p {
  margin: 0;
  color: var(--muted);
}

footer {
  margin-top: 96px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}

footer a {
  color: var(--muted);
}