:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --success: #3fb950;
  --error: #f85149;
  --font: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 1rem; }

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo a { color: var(--text); text-decoration: none; font-size: 1.25rem; }

.main-nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.main-nav a { color: var(--muted); text-decoration: none; }
.main-nav a:hover { color: var(--accent); }

main.container { flex: 1; padding: 2rem 1rem; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1rem 0;
  color: var(--muted);
  font-size: 0.875rem;
}

.hero { margin-bottom: 2rem; }
.hero h2 { font-size: 2rem; margin-bottom: 0.5rem; }
.lead { color: var(--muted); margin-bottom: 1rem; }

.actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  text-decoration: none;
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary { background: var(--accent); color: #000; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface); color: var(--text); }

.panel, .form-panel, .status-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

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

.planet-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  margin-bottom: 0.75rem;
}

.planet-card h4 { margin-bottom: 0.35rem; }
.planet-card a { color: var(--accent); text-decoration: none; }
.planet-card a:hover { color: var(--accent-hover); }

.planet-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}

@media (max-width: 768px) {
  .planet-layout { grid-template-columns: 1fr; }
}

.breadcrumb {
  color: var(--muted);
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.breadcrumb a { color: var(--accent); text-decoration: none; }

.slot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
}

.slot-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  min-height: 110px;
}

.slot-card.slot-occupied {
  border-color: var(--success);
  background: rgba(63, 185, 80, 0.08);
}

.slot-card.slot-empty {
  border-style: dashed;
}

.slot-index {
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.slot-category {
  font-size: 0.8rem;
  text-transform: capitalize;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.slot-status {
  font-size: 0.95rem;
}

.resource-list dd {
  text-align: right;
}

.form-panel label {
  display: block;
  margin-bottom: 1rem;
}

.form-panel input {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
}

.form-note { color: var(--muted); font-size: 0.875rem; margin-top: 1rem; }
.error-message { color: var(--error); margin-top: 0.75rem; }

.detail-list { display: grid; grid-template-columns: auto 1fr; gap: 0.35rem 1rem; }
.detail-list dt { color: var(--muted); }
.detail-list dd { margin: 0; }

#health-status.ok { color: var(--success); }
#health-status.error { color: var(--error); }