:root {
  --bg: #e0e0e0;
  --text: #1a1a1a;
  --muted: #666666;
  --card-bg: #ffffff;
  --radius: 16px;
}

* { box-sizing: border-box; }

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

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.zone {
  margin-bottom: 3rem;
}

.zone h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.card {
  display: block;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  text-decoration: none;
  color: inherit;
  border-left: 6px solid var(--accent, #cccccc);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.card strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.card span {
  color: var(--muted);
  font-size: 0.9rem;
}

.zone-tutoring { --accent: #ff6b6b; }
.zone-services { --accent: #4ecdc4; }
.zone-bots { --accent: #a78bfa; }
.zone-profitbot { --accent: #22c55e; }

.stats {
  font-weight: 600;
}

details.archive {
  color: #999999;
  margin-top: 2rem;
}

details.archive summary {
  cursor: pointer;
}

details.archive ul {
  padding-left: 1.2rem;
}