:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --panel-2: #f0f3f8;
  --text: #1f2a37;
  --muted: #6b7a90;
  --accent: #1f6feb;
  --accent-2: #22c55e;
  --danger: #ef4444;
  --border: #d5dbe6;
  --shadow: rgba(12, 22, 34, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #ffffff 0%, #eef2f8 55%);
  font-size: 12px;
  min-height: 100vh;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(90deg, #ffffff, #f2f5fa);
  position: sticky;
  top: 0;
  z-index: 10;
}

.title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.status {
  font-size: 11px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  grid-template-rows: auto auto;
  gap: 16px;
  padding: 16px;
}

.panel.top-left {
  grid-column: 1 / 2;
  grid-row: 1 / 2;
}

.panel.top-right {
  grid-column: 2 / 3;
  grid-row: 1 / 2;
}

.panel.bottom {
  grid-column: 1 / -1;
  grid-row: 2 / 3;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 10px 30px var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 40vh;
  overflow: hidden;
}

h2, h3 {
  margin: 0;
  font-weight: 600;
}

.form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11px;
  color: var(--muted);
}

.form input[type="text"],
.form input[type="url"],
.form input[type="password"],
.form input[type="number"],
.form input:not([type]) {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
}

.form .row {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.actions {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
}

button {
  background: var(--accent);
  border: none;
  color: #ffffff;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}

button.secondary {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

button.danger {
  background: var(--danger);
  color: #ffffff;
}

.list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  max-height: none;
  flex: 1 1 auto;
}

.list-item {
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-2);
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.list-item.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(31, 111, 235, 0.2);
}

.list-item .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.muted {
  color: var(--muted);
  font-size: 11px;
}

.badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(31, 111, 235, 0.14);
  color: var(--accent);
}

.badge.offline {
  background: rgba(239, 68, 68, 0.14);
  color: var(--danger);
}

.badge.quality-good { background: rgba(34, 197, 94, 0.16); color: #16a34a; }
.badge.quality-bad { background: rgba(239, 68, 68, 0.16); color: #dc2626; }
.badge.quality-uncertain { background: rgba(245, 158, 11, 0.16); color: #d97706; }
.badge.quality-unknown { background: rgba(148, 163, 184, 0.2); color: #64748b; }

.value {
  font-weight: 600;
  font-size: 11px;
}

.toolbar {
  display: flex;
  gap: 8px;
}

.pager {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  font-size: 11px;
}

.tree {
  overflow-y: auto;
  padding-right: 8px;
}

.tree details {
  margin-left: 10px;
}

.tree summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tree summary.has-children::before {
  content: "▸";
  color: var(--muted);
  margin-right: 4px;
}

.tree details[open] > summary.has-children::before {
  content: "▾";
}

.tree summary::-webkit-details-marker {
  display: none;
}

.tree .node-label {
  color: var(--text);
}

.subpanel {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.log {
  background: #0b1117;
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 8px;
  font-family: "JetBrains Mono", "Consolas", monospace;
  font-size: 11px;
  color: #c9d7e8;
  max-height: none;
  overflow-y: auto;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.log-line {
  white-space: pre-wrap;
  word-break: break-word;
}

.log-line .level {
  font-weight: 700;
  margin-right: 6px;
}

.log-line .message {
  margin-left: 8px;
}

.log-line .muted {
  margin-left: 6px;
}

.log-line.level-trace .level { color: #94a3b8; }
.log-line.level-debug .level { color: #38bdf8; }
.log-line.level-info  .level { color: #22c55e; }
.log-line.level-warn  .level { color: #f59e0b; }
.log-line.level-error .level { color: #ef4444; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(5, 11, 20, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 50;
}

.modal.hidden {
  display: none;
}

.modal-content {
  width: min(920px, 96vw);
  max-height: 90vh;
  overflow: hidden;
  background: var(--panel);
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 16px;
  box-shadow: 0 20px 60px var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-content .tree {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  background: var(--panel-2);
  max-height: 55vh;
}

@media (max-width: 1200px) {
  .grid {
    grid-template-columns: 1fr;
  }
  .panel {
    height: auto;
  }
  .list {
    max-height: none;
  }
  .log {
    max-height: none;
  }
}