:root {
  --bg: #f2f5f7;
  --panel: #ffffff;
  --panel-2: #f2f5f7;
  --border: #e1e6eb;
  --text: #07182d;
  --muted: #536070;
  --disabled: #8a939e;
  --accent: #0a60ff;
  --accent-hover: #124fc9;
  --accent-weaker: #e0eeff;
  --accent-weak: #b8d5ff;
  --success: #3d851c;
  --success-weak: #e8f5e1;
  --warning: #b88400;
  --warning-weak: #fff4d6;
  --danger: #d91821;
  --danger-weak: #fde8ea;
  --shadow: 0 1px 3px rgba(7, 24, 45, 0.08);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c2240;
    --panel: #0f2847;
    --panel-2: #163256;
    --border: #1a3352;
    --text: #f2f5f7;
    --muted: #a1a9b2;
    --disabled: #6b7280;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-weaker: #0f2847;
    --accent-weak: #1e3a5f;
    --success: #22c55e;
    --success-weak: rgba(34, 197, 94, 0.15);
    --warning: #eab308;
    --warning-weak: rgba(234, 179, 8, 0.15);
    --danger: #ef4444;
    --danger-weak: rgba(239, 68, 68, 0.15);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
}
.shell { display: flex; height: 100vh; overflow: hidden; }
.sidebar {
  width: 280px; flex-shrink: 0; display: flex; flex-direction: column;
  background: var(--panel); border-right: 1px solid var(--border);
  transition: margin 0.3s, opacity 0.3s;
}
.sidebar:not(.open) { margin-left: -280px; opacity: 0; pointer-events: none; }
.sidebar-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px; border-bottom: 1px solid var(--border);
}
.section-title {
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.6px; color: var(--muted);
}
.sidebar-body { flex: 1; overflow-y: auto; padding: 12px; }
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; overflow: hidden; }
.toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.toolbar-left { display: flex; align-items: center; gap: 16px; }
.toolbar-right { display: flex; align-items: center; gap: 12px; }
.toolbar h1 { margin: 0; font-size: 18px; font-weight: 600; }
.subtitle { margin: 2px 0 0; font-size: 12px; color: var(--disabled); }
.ghost-btn {
  border: 1px solid var(--border); background: transparent; color: var(--muted);
  border-radius: 8px; padding: 6px 12px; font-size: 12px; font-weight: 500; cursor: pointer;
}
.ghost-btn:hover { background: var(--panel-2); color: var(--text); }
.ghost-btn.small { padding: 4px 8px; font-size: 10px; }
.icon-btn {
  border: none; background: transparent; color: var(--disabled);
  border-radius: 8px; padding: 4px 8px; cursor: pointer; font-size: 14px;
}
.icon-btn:hover { background: var(--panel-2); color: var(--text); }
.hidden { display: none !important; }
.conn-pill {
  display: flex; align-items: center; gap: 8px; padding: 6px 12px;
  border-radius: 999px; font-size: 12px; font-weight: 500;
}
.conn-pill .dot { width: 8px; height: 8px; border-radius: 50%; }
.conn-pill.connected { background: var(--success-weak); color: var(--success); }
.conn-pill.connected .dot { background: var(--success); animation: pulse 2s infinite; }
.conn-pill.connecting { background: var(--warning-weak); color: var(--warning); }
.conn-pill.connecting .dot { background: var(--warning); }
.conn-pill.disconnected { background: var(--danger-weak); color: var(--danger); }
.conn-pill.disconnected .dot { background: var(--danger); }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.5} }
.stats {
  display: flex; gap: 16px; padding: 16px 24px;
  background: var(--panel); border-bottom: 1px solid var(--border);
}
.stat-card {
  flex: 1; text-align: center; padding: 16px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--bg);
}
.stat-value { font-size: 28px; font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; }
.stat-label {
  margin-top: 4px; font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.5px; color: var(--disabled);
}
.filters {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.filters-left { display: flex; align-items: center; gap: 8px; }
.filters-title { font-size: 14px; font-weight: 600; }
.feed-count { font-size: 12px; color: var(--disabled); }
.filter-pills { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  border: none; background: transparent; color: var(--muted);
  border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 500; cursor: pointer;
}
.pill:hover { background: var(--panel-2); }
.pill.active { background: rgba(10, 96, 255, 0.15); color: var(--accent); }
.feed { flex: 1; overflow-y: auto; padding: 24px; }
.empty-state { text-align: center; padding: 80px 20px; color: var(--muted); }
.empty-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-title { font-size: 14px; font-weight: 500; color: var(--muted); margin: 0 0 8px; }
.empty-hint { font-size: 12px; color: var(--disabled); margin: 0; }
.obj-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px; margin-bottom: 6px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg);
}
.obj-row:hover { border-color: var(--disabled); }
.obj-left { display: flex; align-items: center; gap: 8px; min-width: 0; }
.obj-name { font-size: 13px; font-weight: 500; }
.obj-count { font-size: 10px; color: var(--disabled); }
.source-tag {
  font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.4px;
  padding: 2px 6px; border-radius: 4px;
}
.source-tag.cdc { background: var(--warning-weak); color: var(--warning); }
.source-tag.pe { background: rgba(168, 85, 247, 0.15); color: #a855f7; }
.toggle { position: relative; width: 36px; height: 20px; flex-shrink: 0; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle span {
  position: absolute; inset: 0; background: var(--panel-2); border-radius: 999px; cursor: pointer;
  transition: background 0.2s;
}
.toggle span::before {
  content: ""; position: absolute; width: 16px; height: 16px; left: 2px; top: 2px;
  background: var(--disabled); border-radius: 50%; transition: transform 0.2s, background 0.2s;
}
.toggle input:checked + span { background: var(--accent); }
.toggle input:checked + span::before { transform: translateX(16px); background: #fff; }
.event-card {
  background: var(--panel); border: 1px solid var(--border); border-left-width: 4px;
  border-radius: 12px; padding: 16px; margin-bottom: 12px; box-shadow: var(--shadow);
  animation: slidein 0.25s ease;
}
@keyframes slidein { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.event-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.event-tags { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.type-tag {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 10px;
  border-radius: 999px; font-size: 11px; font-weight: 600;
}
.change-tag {
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.4px;
  padding: 2px 8px; border-radius: 999px;
}
.change-tag.CREATE { background: var(--success-weak); color: var(--success); }
.change-tag.UPDATE { background: var(--accent-weaker); color: var(--accent); }
.change-tag.DELETE { background: var(--danger-weak); color: var(--danger); }
.event-time { font-size: 11px; color: var(--disabled); font-variant-numeric: tabular-nums; white-space: nowrap; }
.event-name { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.field-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.field-chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 4px 8px;
  border-radius: 6px; border: 1px solid var(--border); background: var(--panel-2); font-size: 11px;
}
.field-chip .old { color: var(--danger); text-decoration: line-through; opacity: 0.85; }
.field-chip .arrow { color: var(--disabled); }
.field-chip .new { color: var(--success); font-weight: 600; }
.details { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 10px; font-size: 12px; }
.details span.label { color: var(--disabled); }
.event-actions {
  display: flex; flex-wrap: wrap; gap: 6px; padding-top: 10px; border-top: 1px solid var(--border);
}
.action-btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px;
  border-radius: 8px; border: 1px solid var(--border); background: rgba(10, 96, 255, 0.05);
  color: var(--accent); font-size: 11px; font-weight: 500; cursor: pointer;
}
.action-btn:hover { border-color: var(--accent); background: rgba(10, 96, 255, 0.15); }
.upload-status { font-size: 12px; color: var(--muted); }
.chat {
  margin: 0 20px 20px; border: 1px solid var(--border); border-radius: 16px;
  background: var(--panel); box-shadow: var(--shadow); overflow: hidden; flex-shrink: 0;
}
.chat.collapsed { height: 52px; }
.chat.expanded { height: 400px; display: flex; flex-direction: column; }
.chat-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; cursor: pointer; flex-shrink: 0;
}
.chat-head-left { display: flex; align-items: center; gap: 8px; min-width: 0; }
.chat-icon { font-size: 18px; }
.chat-title { font-size: 14px; font-weight: 600; }
.chat-context {
  font-size: 10px; font-weight: 500; color: var(--accent);
  background: rgba(10, 96, 255, 0.1); padding: 2px 8px; border-radius: 999px;
  max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.chat-thinking { font-size: 10px; color: var(--accent); animation: pulse 1.5s infinite; }
.chat-body { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.chat-messages { flex: 1; overflow-y: auto; padding: 0 20px 12px; display: flex; flex-direction: column; gap: 10px; }
.msg {
  max-width: 85%; padding: 10px 14px; border-radius: 12px; font-size: 13px; line-height: 1.5;
  white-space: pre-wrap; word-break: break-word;
}
.msg.user { align-self: flex-end; background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: var(--panel-2); color: var(--text); border-bottom-left-radius: 4px; }
.msg.placeholder { align-self: flex-start; color: var(--disabled); font-size: 12px; text-align: center; padding: 32px 20px; }
.chat-input-wrap { padding: 0 16px 16px; flex-shrink: 0; }
.chat-input-inner {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px;
  border-radius: 12px; border: 2px solid transparent;
  background: linear-gradient(var(--panel), var(--panel)) padding-box,
    linear-gradient(90deg, var(--accent), #22d3ee, var(--success)) border-box;
}
.chat-input-inner input {
  flex: 1; border: none; background: transparent; color: var(--text); font-size: 14px; outline: none;
}
.chat-input-inner input::placeholder { color: var(--disabled); }
.chat-input-inner button {
  width: 32px; height: 32px; border: none; border-radius: 8px; background: var(--accent);
  color: #fff; cursor: pointer; font-size: 14px;
}
.chat-input-inner button:disabled { opacity: 0.4; cursor: not-allowed; }
.chevron { color: var(--disabled); transition: transform 0.2s; }
.chat.expanded .chevron { transform: rotate(180deg); }