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

:root {
  --bg: #0f1419;
  --surface: #1a2027;
  --border: #2d3748;
  --text: #e2e8f0;
  --text-muted: #8892a4;
  --accent: #60a5fa;
  --green: #34d399;
  --amber: #fbbf24;
  --red: #f87171;
  --blue: #60a5fa;
}

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

.topbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  text-decoration: none;
}

.nav-links { display: flex; gap: 1rem; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; }
.nav-links a:hover { color: var(--text); }

.sse-indicator { margin-left: auto; color: var(--green); font-size: 0.8rem; }
.sse-indicator.disconnected { color: var(--red); }

main { padding: 1.5rem; max-width: 1200px; margin: 0 auto; }

.actions { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.count { color: var(--text-muted); font-size: 0.85rem; }

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
}
.btn:hover { opacity: 0.9; }
.btn-danger { background: var(--red); }

.host-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }

.tile {
  display: block;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s;
}
.tile:hover { border-color: var(--accent); }
.tile-name { font-weight: 600; margin-bottom: 0.25rem; }
.tile-type { font-size: 0.8rem; color: var(--text-muted); }
.tile-state { font-size: 0.8rem; margin-top: 0.5rem; padding: 0.15rem 0.5rem; border-radius: 3px; display: inline-block; }
.tile-mac { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.5rem; font-family: monospace; }

.state-grey .tile-state { background: #374151; color: #9ca3af; }
.state-blue .tile-state { background: #1e3a5f; color: var(--blue); }
.state-amber .tile-state { background: #422006; color: var(--amber); }
.state-green .tile-state { background: #064e3b; color: var(--green); }
.state-red .tile-state { background: #450a0a; color: var(--red); }

.host-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.badge { padding: 0.2rem 0.6rem; border-radius: 3px; font-size: 0.8rem; }
.state-grey .badge, .badge.state-grey { background: #374151; color: #9ca3af; }
.state-blue .badge, .badge.state-blue { background: #1e3a5f; color: var(--blue); }
.state-amber .badge, .badge.state-amber { background: #422006; color: var(--amber); }
.state-green .badge, .badge.state-green { background: #064e3b; color: var(--green); }
.state-red .badge, .badge.state-red { background: #450a0a; color: var(--red); }

.detail-table { margin-bottom: 1.5rem; }
.detail-table th { text-align: left; padding: 0.4rem 1rem 0.4rem 0; color: var(--text-muted); font-weight: 500; }
.detail-table td { padding: 0.4rem 0; }

.ops-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.ops-table th { text-align: left; padding: 0.5rem; border-bottom: 1px solid var(--border); color: var(--text-muted); }
.ops-table td { padding: 0.5rem; border-bottom: 1px solid var(--border); }

.form { max-width: 400px; }
.form label { display: block; margin-bottom: 1rem; color: var(--text-muted); font-size: 0.85rem; }
.form input, .form select, .form textarea {
  display: block;
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 0.9rem;
}
.form textarea { min-height: 60px; resize: vertical; }
.form .btn { margin-top: 0.5rem; }

.error { background: #450a0a; color: var(--red); padding: 0.75rem; border-radius: 4px; margin-bottom: 1rem; font-size: 0.85rem; }
.empty { color: var(--text-muted); padding: 2rem; text-align: center; }
.empty a { color: var(--accent); }
.inline { display: inline; }
h2 { margin-bottom: 1rem; }
h3 { margin: 1.5rem 0 0.75rem; color: var(--text-muted); font-size: 0.95rem; }