:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1c2230;
  --border: #2a3140;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #4f8cff;
  --product: #4f8cff;
  --person: #3ecf8e;
  --company: #ff9f43;
  --vc_firm: #b07cff;
  --danger: #ff6b6b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.brand { display: flex; align-items: baseline; gap: 10px; }
.logo {
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  background: linear-gradient(90deg, #ff6b9d, #4f8cff);
  padding: 2px 8px;
  border-radius: 6px;
}
.brand-sub { color: var(--muted); font-size: 13px; }

.topbar-actions { display: flex; align-items: center; gap: 14px; }
.legend { display: flex; gap: 12px; flex-wrap: wrap; }
.legend .item { display: flex; align-items: center; gap: 5px; font-size: 12px; color: var(--muted); }
.legend .dot { width: 10px; height: 10px; border-radius: 50%; }

.layout {
  display: grid;
  grid-template-columns: 290px 1fr 320px;
  height: calc(100% - 53px);
}

.panel {
  background: var(--panel);
  overflow-y: auto;
  padding: 14px;
}
.panel.controls { border-right: 1px solid var(--border); }
.panel.info { border-left: 1px solid var(--border); }

.block { margin-bottom: 22px; }
.block h3 { margin: 0 0 10px; font-size: 14px; color: #fff; }
.block h4 { margin: 14px 0 6px; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 7px 12px;
  cursor: pointer;
  font-size: 13px;
  transition: background .15s, border-color .15s;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; width: 100%; margin-top: 8px; }
.btn.primary:hover { filter: brightness(1.1); }
.btn.tiny { padding: 2px 9px; font-size: 13px; line-height: 1.4; }

input[type="text"] {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 13px;
  outline: none;
}
input[type="text"]:focus { border-color: var(--accent); }

.field { display: block; margin-bottom: 8px; font-size: 12px; color: var(--muted); }
.field input { margin-top: 4px; }

.hint { font-size: 12px; color: var(--muted); margin-top: 6px; min-height: 16px; }
.muted { color: var(--muted); font-size: 12px; margin: 0 0 8px; }

.type-filter { display: flex; flex-direction: column; gap: 6px; }
.type-filter label { display: flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; }
.type-filter .dot { width: 10px; height: 10px; border-radius: 50%; }

.path-result { margin-top: 10px; font-size: 13px; }
.path-result .status {
  padding: 8px 10px; border-radius: 7px; margin-bottom: 8px;
  border: 1px solid var(--border); background: var(--panel-2);
}
.path-result .status.ok { border-color: var(--person); color: var(--person); }
.path-result .status.unreachable { border-color: var(--danger); color: var(--danger); }
.path-result .status.same,
.path-result .status.invalid { border-color: #ffcc66; color: #ffcc66; }
.path-result .status.none { color: var(--muted); }
.path-nodes { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.path-node {
  background: var(--accent); color: #fff; border-radius: 20px;
  padding: 3px 10px; font-size: 12px; cursor: pointer;
}
.path-arrow { color: var(--muted); }

.stats-list { margin: 0; padding-left: 0; list-style: none; counter-reset: rank; }
.stats-list li {
  counter-increment: rank;
  display: flex; justify-content: space-between; align-items: center;
  padding: 5px 8px; border-radius: 6px; cursor: pointer; font-size: 13px;
}
.stats-list li:hover { background: var(--panel-2); }
.stats-list li::before {
  content: counter(rank); width: 18px; display: inline-block; color: var(--muted);
}
.stats-list li .name { flex: 1; margin-left: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stats-list li .deg { color: var(--accent); font-variant-numeric: tabular-nums; }

.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; }
.stats-grid .cell {
  display: flex; justify-content: space-between; gap: 6px;
  background: var(--panel-2); padding: 6px 8px; border-radius: 6px; font-size: 12px;
}
.stats-grid .cell .k { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stats-grid .cell .v { color: var(--text); font-variant-numeric: tabular-nums; }
.stats-grid .cell.clickable { cursor: pointer; }
.stats-grid .cell.clickable:hover { border: 1px solid var(--accent); }

.canvas-wrap { position: relative; overflow: hidden; background:
  radial-gradient(circle at 50% 40%, #131a24 0%, #0e1116 70%); }
#graph { display: block; width: 100%; height: 100%; cursor: grab; }
#graph.dragging { cursor: grabbing; }

.canvas-hud {
  position: absolute; left: 12px; bottom: 12px; display: flex; align-items: center; gap: 8px;
  background: rgba(22,27,34,.85); border: 1px solid var(--border);
  padding: 6px 10px; border-radius: 8px; font-size: 12px; color: var(--muted);
}

.info-empty { color: var(--muted); font-size: 13px; line-height: 1.6; }
.info-content h2 { margin: 0 0 4px; font-size: 18px; }
.info-content .type-tag {
  display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 20px;
  color: #fff; margin-bottom: 10px;
}
.info-content .meta { display: flex; gap: 14px; flex-wrap: wrap; margin: 8px 0; font-size: 12px; color: var(--muted); }
.info-content .desc { font-size: 13px; line-height: 1.6; margin: 8px 0; }
.info-content .aliases { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.info-content h4 { margin: 12px 0 6px; font-size: 12px; color: var(--muted); text-transform: uppercase; }
.rel-list { display: flex; flex-direction: column; gap: 5px; max-height: 230px; overflow-y: auto; }
.rel-item {
  display: flex; gap: 8px; align-items: baseline; font-size: 12px;
  background: var(--panel-2); padding: 6px 8px; border-radius: 6px; cursor: pointer;
}
.rel-item:hover { border: 1px solid var(--accent); }
.rel-item .rel-type { color: #ffcc66; white-space: nowrap; }
.rel-item .rel-target { color: var(--text); }

#loading {
  position: fixed; inset: 0; display: flex; align-items: center; justify-content: center;
  background: var(--bg); color: var(--muted); font-size: 15px; z-index: 50;
}
#loading.error { color: var(--danger); padding: 20px; text-align: center; }