:root {
  --bg: #0f1115;
  --card: #171a21;
  --border: #2a2f3a;
  --text: #e6e8eb;
  --muted: #8b93a1;
  --up: #3fb950;
  --down: #f85149;
  --accent: #58a6ff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}

main { max-width: 960px; margin: 0 auto; padding: 2rem 1.5rem; }

header { margin-bottom: 2rem; }
h1 { font-size: 2rem; font-weight: 650; letter-spacing: -0.02em; }
.subtitle { color: var(--muted); margin-top: 0.25rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: border-color 0.15s ease;
}

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

.card .top { display: flex; align-items: center; gap: 0.6rem; }
.card h2 { font-size: 1.05rem; font-weight: 600; }

.badge {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--muted); flex-shrink: 0;
}
.badge.up { background: var(--up); box-shadow: 0 0 6px var(--up); }
.badge.down { background: var(--down); box-shadow: 0 0 6px var(--down); }
.badge.checking { background: var(--accent); }

.card p { color: var(--muted); font-size: 0.9rem; }
.card .links { margin-top: auto; display: flex; gap: 1rem; font-size: 0.85rem; }
.card a { color: var(--accent); text-decoration: none; }
.card a:hover { text-decoration: underline; }

footer { margin-top: 2.5rem; color: var(--muted); font-size: 0.8rem; }