:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --border: #e5e7eb;
  --link: #0b5fff;
  --shadow: 0 6px 20px rgba(0,0,0,0.06);
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.4;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 18px;
}

h1 {
  margin: 8px 0 4px;
  font-size: 1.9rem;
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.card {
  display: block;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
}

.card h2 {
  margin: 0 0 6px;
  font-size: 1.1rem;
}

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

.card:hover {
  border-color: rgba(11,95,255,0.35);
}

.muted {
  opacity: 0.65;
}

.footer {
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.95rem;
}