:root,
html[data-theme="dark"] {
  --bg: #1e1e2d;
  --panel: #2a2a3c;
  --panel2: #1a1a27;
  --surface: #232333;
  --text: #e0e0e0;
  --muted: #a0a0b8;
  --accent: #7c4dff;
  --accent-hover: #6a3de8;
  --accent-soft: rgba(124, 77, 255, 0.18);
  --accent2: #66bb6a;
  --danger: #ef5350;
  --border: #3a3a4c;
  --input-bg: #1a1a27;
  --table-head: #232333;
  --table-hover: rgba(124, 77, 255, 0.08);
  --nav-hover: rgba(255, 255, 255, 0.06);
  --nav-active: rgba(124, 77, 255, 0.22);
  --badge-bg: #3a3a4c;
  --badge-on-bg: #1b5e20;
  --badge-on-fg: #c8e6c9;
  --badge-off-bg: #7f1d1d;
  --badge-off-fg: #fecaca;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
  --sidebar-w: 240px;
  color-scheme: dark;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}

html[data-theme="light"] {
  --bg: #f5f5f7;
  --panel: #ffffff;
  --panel2: #ffffff;
  --surface: #fafafa;
  --text: #212121;
  --muted: #757575;
  --accent: #7c4dff;
  --accent-hover: #651fff;
  --accent-soft: rgba(124, 77, 255, 0.12);
  --accent2: #43a047;
  --danger: #e53935;
  --border: #e0e0e0;
  --input-bg: #ffffff;
  --table-head: #f5f5f5;
  --table-hover: rgba(124, 77, 255, 0.06);
  --nav-hover: rgba(0, 0, 0, 0.04);
  --nav-active: rgba(124, 77, 255, 0.14);
  --badge-bg: #eeeeee;
  --badge-on-bg: #e8f5e9;
  --badge-on-fg: #2e7d32;
  --badge-off-bg: #ffebee;
  --badge-off-fg: #c62828;
  --shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); min-height: 100%; overflow: hidden; }
a { color: var(--accent); text-decoration: none; }
.muted { color: var(--muted); font-size: 0.85rem; }
.error { color: var(--danger); font-size: 0.9rem; margin-top: 0.75rem; min-height: 1.2em; }

button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem;
  padding: 0.45rem 0.95rem; border: 0; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 600; cursor: pointer;
  transition: background 0.15s ease, box-shadow 0.15s ease;
  box-shadow: var(--shadow);
}
button:hover, .btn:hover { background: var(--accent-hover); }
button.secondary, .btn.secondary {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  box-shadow: none;
}
button.secondary:hover, .btn.secondary:hover {
  background: var(--nav-hover); border-color: var(--accent); color: var(--accent);
}
button.danger { background: var(--danger); }
button.danger:hover { filter: brightness(1.08); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.icon-btn {
  width: 2.25rem; height: 2.25rem; padding: 0; border-radius: 50%;
  background: transparent; color: var(--muted); box-shadow: none; border: 1px solid transparent;
}
button.icon-btn:hover {
  background: var(--nav-hover); color: var(--accent); border-color: var(--border);
}
button.icon-btn .icon-sun,
button.icon-btn .icon-moon { display: none; width: 1.15rem; height: 1.15rem; }
html[data-theme="dark"] button.icon-btn .icon-sun { display: block; }
html[data-theme="light"] button.icon-btn .icon-moon { display: block; }

input, select, textarea {
  width: 100%; padding: 0.5rem 0.75rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--input-bg); color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
label { display: block; font-size: 0.85rem; color: var(--muted); margin: 0.5rem 0 0.25rem; }

.login-body { display: grid; place-items: center; min-height: 100vh; background: var(--bg); }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem;
  box-shadow: var(--shadow);
}
.login-card { width: min(420px, 92vw); }
.login-card h1 { margin: 0 0 0.35rem; font-size: 1.35rem; color: var(--accent); }
.login-card button { width: 100%; margin-top: 1rem; }
.hint { margin-top: 1rem; }

.app-body { display: flex; height: 100%; min-height: 100%; overflow: hidden; }
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0; background: var(--panel2); border-right: 1px solid var(--border);
  padding: 1rem 0.75rem; display: flex; flex-direction: column; gap: 0.5rem;
  height: 100%; overflow: auto;
}
.brand {
  font-weight: 800; letter-spacing: 0.02em; padding: 0.25rem 0.5rem;
  color: var(--accent); font-size: 1.05rem;
}
.who {
  font-size: 0.8rem; color: var(--muted); padding: 0 0.5rem 0.5rem;
  border-bottom: 1px solid var(--border); margin-bottom: 0.35rem;
}
.nav-group { margin: 0.5rem 0; }
.nav-group-title {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted);
  padding: 0.35rem 0.5rem;
}
.nav-link {
  display: block; width: 100%; text-align: left; background: transparent; border: 0; color: var(--text);
  padding: 0.5rem 0.75rem; border-radius: 8px; font-weight: 500; cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
  box-shadow: none;
}
.nav-link:hover { background: var(--nav-hover); color: var(--text); }
.nav-link.active {
  background: var(--nav-active); color: var(--accent); font-weight: 600;
}
.logout { margin-top: auto; width: 100%; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; min-height: 0; height: 100%; background: var(--bg); overflow: hidden; }
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.85rem 1.25rem; border-bottom: 1px solid var(--border); background: var(--panel);
  flex-shrink: 0; z-index: 5;
}
.topbar h2 { margin: 0; font-size: 1.1rem; }
.top-actions { display: flex; align-items: end; gap: 0.75rem; }
.top-actions label { margin: 0; }
.top-actions select { width: auto; min-width: 160px; }
.toolbar {
  padding: 0.75rem 1.25rem; display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: end;
  border-bottom: 1px solid var(--border); background: var(--surface);
  flex-shrink: 0; z-index: 4;
}
.toolbar:empty { display: none; }
.toolbar .field { min-width: 140px; }
.content {
  flex: 1; min-height: 0; padding: 0.75rem 1.25rem 0;
  overflow: hidden; display: flex; flex-direction: column; gap: 0.5rem;
}

.table-wrap {
  flex: 1 1 auto; min-height: 0; overflow: auto; border: 1px solid var(--border); border-radius: 10px;
  background: var(--panel); box-shadow: var(--shadow);
}
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td {
  padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--border);
  text-align: left; white-space: nowrap;
}
th {
  background: var(--table-head); color: var(--muted); font-weight: 600;
  position: sticky; top: 0; z-index: 1;
}
tr:hover td { background: var(--table-hover); }
.pager {
  display: flex; gap: 0.5rem; align-items: center; flex-shrink: 0;
  margin: 0 -1.25rem 0; padding: 0.4rem 1.25rem;
  background: var(--panel); border-top: 1px solid var(--border);
}
.empty-cell {
  text-align: center; color: var(--muted); padding: 2rem 0.75rem !important;
  white-space: normal;
}
.badge {
  display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px;
  font-size: 0.75rem; background: var(--badge-bg); color: var(--text);
}
.badge.on { background: var(--badge-on-bg); color: var(--badge-on-fg); }
.badge.off { background: var(--badge-off-bg); color: var(--badge-off-fg); }

dialog {
  border: 1px solid var(--border); border-radius: 12px; background: var(--panel); color: var(--text);
  padding: 1rem 1.15rem; min-width: min(420px, 92vw); box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.55); }
.dlg-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1rem; }
#dlg-body .row { margin-bottom: 0.35rem; }

@media (max-width: 860px) {
  .app-body { flex-direction: column; height: auto; min-height: 100%; overflow: auto; }
  body { overflow: auto; }
  .sidebar { width: 100%; height: auto; max-height: 40vh; }
  .main { height: auto; min-height: 60vh; }
}

#whoami {
  font-size: 0.8rem; color: var(--muted); padding: 0 0.5rem 0.5rem;
  border-bottom: 1px solid var(--border); margin-bottom: 0.35rem;
}

.toolbar .date-range { display: inline-flex; align-items: center; gap: 0.35rem; }
.toolbar .date-range input[type="date"] { width: auto; min-width: 9.5rem; }
.toolbar-radios, .toolbar-check { display: inline-flex; align-items: center; gap: 0.75rem; margin: 0 0.25rem; }
.toolbar-radios .row, .toolbar-check { white-space: nowrap; }
.stats-agg { margin: 0.25rem 0 0; font-size: 0.85rem; }

.cluster-banner {
  margin: 0.5rem 1rem 0;
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  background: color-mix(in srgb, var(--danger) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent);
  color: var(--danger);
  font-size: 0.92rem;
}
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.charts-row .chart-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
  min-height: 220px;
}
@media (max-width: 960px) {
  .charts-row { grid-template-columns: 1fr; }
}

.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 0.75rem; margin-bottom: 1rem; }
.summary-card strong { display: block; font-size: 2rem; margin-top: 0.5rem; }
.search-form { display: flex; align-items: flex-end; flex-wrap: wrap; gap: 0.5rem; }
.search-form label { display: flex; flex-direction: column; gap: 0.25rem; }