:root {
  --bg: #0f1115;
  --surface: #171a21;
  --border: #262b35;
  --text: #e8eaed;
  --muted: #9aa0aa;
  --accent: #5b8cff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 1.2rem;
}

.brand .dot { color: var(--accent); }

nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 24px;
  font-size: 0.9rem;
}

nav a:hover { color: var(--text); }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 60px 40px;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 8px;
}

.hero p {
  color: var(--muted);
  max-width: 560px;
}

.section { margin-top: 60px; }

.section h2 {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s ease;
}

.card:hover { border-color: var(--accent); }

.card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.card p { margin: 0 0 12px; color: var(--muted); font-size: 0.9rem; }

.tag {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--accent);
  background: rgba(91,140,255,0.12);
  padding: 3px 8px;
  border-radius: 6px;
}

.empty-state {
  color: var(--muted);
  font-size: 0.9rem;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 30px 0 50px;
}