:root {
  --bg: #14161a;
  --panel: #1c1f26;
  --panel-alt: #232730;
  --border: #2c313b;
  --text: #e6e8eb;
  --muted: #9aa3af;
  --accent: #4f9dff;
  --total: #2a2f3a;
  --danger: #ff5d5d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1 {
  font-size: 18px;
  margin: 0;
  letter-spacing: 0.5px;
}

.tabs { display: flex; gap: 4px; }

.tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--text);
  background: var(--panel-alt);
  border-color: var(--border);
}

.status {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pill {
  color: var(--muted);
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  white-space: nowrap;
}

.action {
  background: var(--panel-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 12px;
  cursor: pointer;
  font-size: 13px;
}
.action:hover { border-color: var(--accent); }
.action:disabled { opacity: 0.5; cursor: default; }

.session-bar {
  padding: 8px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  white-space: pre;
  font-variant-numeric: tabular-nums;
  overflow-x: auto;
}

main { padding: 20px; }

.subbar {
  color: var(--muted);
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.placeholder { color: var(--muted); }

.banner {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 14px;
}
.banner.error { background: rgba(255, 93, 93, 0.12); color: var(--danger); border: 1px solid rgba(255, 93, 93, 0.3); }

table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

thead th {
  text-align: right;
  padding: 8px 12px;
  color: var(--muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
thead th.text { text-align: left; }
thead th:hover { color: var(--text); }
thead th .arrow { color: var(--accent); margin-left: 4px; }

tbody td {
  padding: 7px 12px;
  text-align: right;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td.text { text-align: left; }
tbody tr:hover td { background: var(--panel); }

tbody tr.total td {
  background: var(--total);
  font-weight: 700;
  border-top: 2px solid var(--border);
}

td.status, th.status { color: var(--muted); }
td.warn { color: #f0b65a; }

/* --- trends --- */

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-bottom: 16px;
}

.control {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

select {
  background: var(--panel-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 14px;
}

.resources { display: flex; flex-wrap: wrap; gap: 6px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 10px;
  cursor: pointer;
  user-select: none;
}
.chip .swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

.ranges { display: flex; gap: 4px; margin-left: auto; }

.range-btn {
  background: var(--panel-alt);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 12px;
  cursor: pointer;
  font-size: 14px;
}
.range-btn:hover { color: var(--text); }
.range-btn.active { color: var(--text); border-color: var(--accent); }

#trend-chart { width: 100%; }

/* uPlot dark theme tweaks */
.uplot, .u-legend { color: var(--text); }
.u-legend .u-marker { width: 10px; height: 10px; }