:root {
  --bg: #0f1117;
  --raised: #161b22;
  --border: #2d333b;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --accent-dim: rgba(88, 166, 255, 0.15);
  --ok: #3fb950;
  --warn: #d29922;
  --danger: #f85149;
  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  flex-shrink: 0;
  padding: 1.25rem;
  border-right: 1px solid var(--border);
  background: var(--raised);
}

.sidebar h1 { font-size: 1.1rem; margin: 0 0 0.25rem; }
.subtitle { font-size: 0.75rem; color: var(--muted); margin: 0 0 1.5rem; }

nav { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 1.5rem; }
.nav-btn {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
}
.nav-btn:hover { background: var(--border); color: var(--text); }
.nav-btn.active { background: var(--accent-dim); color: var(--accent); }

.stats { font-size: 0.75rem; color: var(--muted); }
.stats .stat-line { margin-bottom: 0.35rem; }
.stats strong { color: var(--text); }

main { flex: 1; padding: 1.5rem; overflow: auto; }
.panel { display: none; }
.panel.active { display: block; }

.panel-header h2 { margin: 0 0 0.25rem; font-size: 1.25rem; }
.panel-header p { margin: 0 0 1rem; color: var(--muted); font-size: 0.85rem; }
.panel-header code { font-size: 0.8rem; }

.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.chip {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--raised);
  color: var(--muted);
  font-size: 0.8rem;
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}
.controls label { font-size: 0.85rem; color: var(--muted); }
.controls select {
  margin-left: 0.35rem;
  padding: 0.35rem 0.5rem;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
}
.controls input[type="number"] {
  margin-left: 0.35rem;
  width: 5rem;
  padding: 0.35rem 0.5rem;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
}
.btn {
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  border: 1px solid var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
  cursor: pointer;
  font-size: 0.85rem;
}
.btn:hover { filter: brightness(1.1); }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.8rem; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.pager-wrap { margin-bottom: 0.75rem; }
.pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.pager-meta { font-size: 0.8rem; color: var(--muted); }
.pager-btns { display: flex; gap: 0.5rem; }

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
th, td {
  text-align: left;
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid var(--border);
}
th { color: var(--muted); font-weight: 500; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:hover td { background: rgba(255,255,255,0.02); }

.badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
}
.badge-owned { background: rgba(63, 185, 80, 0.2); color: var(--ok); }
.badge-missing { background: rgba(248, 81, 73, 0.15); color: var(--danger); }
.badge-source { background: var(--accent-dim); color: var(--accent); }

.empty { color: var(--muted); padding: 2rem; text-align: center; }
.error { color: var(--danger); }

@media (max-width: 768px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
  nav { flex-direction: row; flex-wrap: wrap; }
}