/* SCADA HMI - dense industrial monitoring */
:root {
  --bg-0: oklch(0.16 0.01 240);
  --bg-1: oklch(0.20 0.012 240);
  --bg-2: oklch(0.24 0.014 240);
  --bg-3: oklch(0.28 0.016 240);
  --border: oklch(0.34 0.018 240);
  --border-strong: oklch(0.44 0.02 240);
  --text-0: oklch(0.96 0.005 240);
  --text-1: oklch(0.80 0.008 240);
  --text-2: oklch(0.62 0.01 240);
  --text-3: oklch(0.48 0.012 240);
  --accent: oklch(0.82 0.14 210);
  --accent-dim: oklch(0.58 0.10 210);
  --ok: oklch(0.80 0.18 145);
  --ok-dim: oklch(0.50 0.14 145);
  --warn: oklch(0.85 0.16 85);
  --warn-dim: oklch(0.58 0.14 85);
  --alarm: oklch(0.70 0.22 25);
  --alarm-dim: oklch(0.48 0.18 25);
  --manual: oklch(0.78 0.12 290);
  --off: oklch(0.50 0.01 240);
  --grid: oklch(0.26 0.014 240);
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Theme: high contrast */
body.theme-hc {
  --bg-0: #000;
  --bg-1: #0a0a0a;
  --bg-2: #141414;
  --bg-3: #1c1c1c;
  --border: #2a2a2a;
  --border-strong: #3a3a3a;
  --text-0: #fff;
  --text-1: #d4d4d4;
  --text-2: #8a8a8a;
}

/* Theme: amber CRT */
body.theme-amber {
  --bg-0: #120a00;
  --bg-1: #1a0f00;
  --bg-2: #241500;
  --bg-3: #2e1d00;
  --border: #4a2e00;
  --border-strong: #6b4400;
  --text-0: #ffb84a;
  --text-1: #e89a2a;
  --text-2: #a06a18;
  --text-3: #7a5010;
  --accent: #ffc870;
  --ok: #c8ff3a;
  --warn: #ffb84a;
  --alarm: #ff4a2a;
  --grid: #2a1a00;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  background: var(--bg-0);
  color: var(--text-1);
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.4;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* App shell */
.app {
  display: grid;
  grid-template-rows: 28px 44px 1fr 22px;
  height: 100vh;
  width: 100vw;
}

/* Top bar - title */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-0);
}
.topbar .brand b { color: var(--accent); font-weight: 600; }
.topbar .meta { display: flex; gap: 16px; }
.topbar .meta span { display: flex; gap: 6px; }
.topbar .meta .k { color: var(--text-3); }

/* Tab bar */
.tabs {
  display: flex;
  align-items: stretch;
  background: var(--bg-1);
  border-bottom: 1px solid var(--border);
  padding: 0 8px;
  gap: 0;
}
.tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-2);
  cursor: pointer;
  border: none;
  background: transparent;
  border-right: 1px solid var(--border);
  position: relative;
  height: 100%;
}
.tab:first-child { border-left: 1px solid var(--border); }
.tab:hover { color: var(--text-0); background: var(--bg-2); }
.tab.active {
  color: var(--text-0);
  background: var(--bg-0);
}
.tab.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; top: -1px;
  height: 2px;
  background: var(--accent);
}
.tab .num-badge {
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 2px;
  background: var(--bg-3);
  color: var(--text-1);
}
.tab .num-badge.alarm { background: var(--alarm-dim); color: #fff; }
.tab .num-badge.warn { background: var(--warn-dim); color: #fff; }
.tabs-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-2);
}
.tabs-right .pill {
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 2px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Status bar */
.statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-2);
  letter-spacing: 0.04em;
}
.statusbar .group { display: flex; gap: 16px; align-items: center; }
.statusbar .group span { display: flex; gap: 6px; align-items: center; }
.statusbar .k { color: var(--text-3); text-transform: uppercase; }

/* Main content area */
.view { overflow: hidden; position: relative; }

/* Panels */
.panel {
  background: var(--bg-1);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-1);
  min-height: 24px;
}
.panel-header .title { display: flex; gap: 8px; align-items: center; }
.panel-header .title .dot { width: 6px; height: 6px; background: var(--accent); }
.panel-header .actions { display: flex; gap: 8px; color: var(--text-3); font-size: 10px; }
.panel-header .actions button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-2);
  padding: 1px 6px;
  font-family: var(--mono);
  font-size: 9.5px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.panel-header .actions button:hover { color: var(--text-0); border-color: var(--border-strong); }
.panel-header .actions button.on { background: var(--accent-dim); color: var(--text-0); border-color: var(--accent-dim); }
.panel-body { flex: 1; overflow: auto; position: relative; }

/* Status dots / pills */
.sdot { width: 8px; height: 8px; display: inline-block; border-radius: 50%; }
.sdot.ok { background: var(--ok); box-shadow: 0 0 6px var(--ok-dim); }
.sdot.warn { background: var(--warn); box-shadow: 0 0 6px var(--warn-dim); }
.sdot.alarm { background: var(--alarm); box-shadow: 0 0 6px var(--alarm-dim); animation: blink 1s steps(2, end) infinite; }
.sdot.manual { background: var(--manual); }
.sdot.off { background: var(--off); }
@keyframes blink { 50% { opacity: 0.2; } }

.pill-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 1px 6px;
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--bg-3);
  color: var(--text-1);
  border: 1px solid var(--border);
}
.pill-status.ok { border-color: var(--ok-dim); color: var(--ok); }
.pill-status.warn { border-color: var(--warn-dim); color: var(--warn); }
.pill-status.alarm { border-color: var(--alarm-dim); color: var(--alarm); background: color-mix(in oklch, var(--alarm) 15%, var(--bg-1)); }
.pill-status.manual { border-color: var(--manual); color: var(--manual); }

/* Tables */
table.dense {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 11px;
}
table.dense th {
  text-align: left;
  padding: 5px 8px;
  background: var(--bg-2);
  color: var(--text-3);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 9.5px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 2;
}
table.dense td {
  padding: 4px 8px;
  border-bottom: 1px solid var(--border);
  color: var(--text-1);
  white-space: nowrap;
}
table.dense tbody tr:hover { background: var(--bg-2); cursor: pointer; }
table.dense tbody tr.selected { background: color-mix(in oklch, var(--accent) 20%, var(--bg-1)); }
table.dense tbody tr.row-alarm {
  background: color-mix(in oklch, var(--alarm) 10%, var(--bg-1));
}
table.dense tbody tr.row-alarm.unack td:first-child {
  border-left: 2px solid var(--alarm);
  padding-left: 6px;
}
table.dense tbody tr.row-warn {
  background: color-mix(in oklch, var(--warn) 6%, var(--bg-1));
}
table.dense td.num { text-align: right; }
table.dense td.right { text-align: right; }
table.dense td.c-ok { color: var(--ok); }
table.dense td.c-warn { color: var(--warn); }
table.dense td.c-alarm { color: var(--alarm); }
table.dense td.c-dim { color: var(--text-3); }

/* KPI tiles */
.kpi-strip {
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.kpi {
  background: var(--bg-1);
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-height: 64px;
  position: relative;
  overflow: hidden;
}
.kpi .label {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.kpi .value {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 22px;
  font-weight: 500;
  color: var(--text-0);
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.kpi .value .unit { font-size: 11px; color: var(--text-3); font-weight: 400; }
.kpi .delta {
  font-family: var(--mono);
  font-size: 10px;
  display: flex;
  gap: 6px;
  color: var(--text-2);
}
.kpi .delta .up { color: var(--ok); }
.kpi .delta .down { color: var(--alarm); }
.kpi .spark {
  position: absolute;
  right: 10px;
  bottom: 8px;
  width: 70px;
  height: 20px;
  opacity: 0.9;
}
.kpi.crit .value { color: var(--alarm); }
.kpi.warn .value { color: var(--warn); }

/* Overview layout */
.overview {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  grid-template-rows: auto 1fr 1fr;
  gap: 6px;
  padding: 6px;
  height: 100%;
  background: var(--bg-0);
}
.overview .kpi-strip {
  grid-column: 1 / -1;
  grid-row: 1;
  grid-template-columns: repeat(6, 1fr);
}

/* Unit grid */
.units {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  padding: 8px;
  overflow: auto;
}
.unit-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  padding: 8px 10px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 8px;
  cursor: pointer;
  position: relative;
}
.unit-card:hover { border-color: var(--border-strong); }
.unit-card.alarm { border-color: var(--alarm-dim); }
.unit-card.warn { border-color: var(--warn-dim); }
.unit-card .u-name {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--text-0);
  text-transform: uppercase;
}
.unit-card .u-tag {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text-3);
}
.unit-card .u-status {
  grid-column: 2;
  grid-row: 1 / span 2;
  display: flex;
  align-items: center;
}
.unit-card .u-readings {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px 10px;
  margin-top: 4px;
  padding-top: 6px;
  border-top: 1px dashed var(--border);
}
.unit-card .u-readings .r {
  display: flex;
  flex-direction: column;
  font-family: var(--mono);
  font-size: 10px;
}
.unit-card .u-readings .r .rk { color: var(--text-3); font-size: 9px; letter-spacing: 0.04em; text-transform: uppercase; }
.unit-card .u-readings .r .rv { color: var(--text-0); font-size: 12px; font-variant-numeric: tabular-nums; }
.unit-card .u-readings .r.hi .rv { color: var(--alarm); }
.unit-card .u-readings .r.lo .rv { color: var(--warn); }

/* Trend mini */
.trend-mini { padding: 4px; }

/* Mnemonic (P&ID) */
.mnemonic-wrap {
  position: relative;
  height: 100%;
  background: var(--bg-0);
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 6px;
  padding: 6px;
}
.mnemonic {
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 20px 20px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 20px 20px,
    var(--bg-1);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.mnemonic svg { display: block; width: 100%; height: 100%; }

/* Alarms */
.alarms-wrap {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  height: 100%;
  background: var(--bg-0);
  padding: 6px;
  gap: 6px;
}
.alarm-filter {
  display: flex;
  gap: 6px;
  align-items: center;
  padding: 6px 8px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10.5px;
}
.alarm-filter .chip {
  padding: 3px 8px;
  border: 1px solid var(--border);
  color: var(--text-2);
  cursor: pointer;
  display: flex;
  gap: 6px;
  align-items: center;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 10px;
}
.alarm-filter .chip.on { background: var(--bg-3); color: var(--text-0); border-color: var(--border-strong); }
.alarm-filter .spacer { flex: 1; }
.alarm-filter input {
  background: var(--bg-0);
  border: 1px solid var(--border);
  color: var(--text-0);
  padding: 3px 8px;
  font-family: var(--mono);
  font-size: 11px;
  width: 220px;
}
.alarm-filter input::placeholder { color: var(--text-3); }
.alarm-filter button.act {
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  color: var(--text-0);
  padding: 3px 10px;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
}
.alarm-filter button.act:hover { background: var(--accent-dim); }
.alarm-filter button.act.danger:hover { background: var(--alarm-dim); }

/* Trends */
.trends-wrap {
  display: grid;
  grid-template-columns: 280px 1fr;
  grid-template-rows: 1fr auto;
  gap: 6px;
  padding: 6px;
  height: 100%;
  background: var(--bg-0);
}
.trend-chart-panel { grid-column: 2; grid-row: 1; }
.trend-tags-panel { grid-column: 1; grid-row: 1 / span 2; }
.trend-control { grid-column: 2; grid-row: 2; }

.trend-chart { width: 100%; height: 100%; display: block; }

.tag-row {
  display: grid;
  grid-template-columns: 14px 1fr auto;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10.5px;
  cursor: pointer;
}
.tag-row:hover { background: var(--bg-2); }
.tag-row .swatch { width: 10px; height: 10px; border: 1px solid var(--border-strong); }
.tag-row.on { background: color-mix(in oklch, var(--accent) 8%, var(--bg-1)); }
.tag-row .tname { color: var(--text-0); }
.tag-row .tdesc { color: var(--text-3); font-size: 9.5px; }
.tag-row .tval { color: var(--text-1); font-variant-numeric: tabular-nums; }

.trend-control {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10.5px;
}
.range-btns { display: flex; gap: 0; }
.range-btns button {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-right: none;
  color: var(--text-2);
  padding: 3px 10px;
  font-family: var(--mono);
  font-size: 10px;
  cursor: pointer;
  text-transform: uppercase;
}
.range-btns button:last-child { border-right: 1px solid var(--border); }
.range-btns button.on { background: var(--accent-dim); color: var(--text-0); border-color: var(--accent-dim); }

/* Events */
.events-wrap { height: 100%; padding: 6px; background: var(--bg-0); }

/* Detail drawer */
.drawer {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 340px;
  background: var(--bg-1);
  border-left: 1px solid var(--border-strong);
  transform: translateX(100%);
  transition: transform 0.18s ease;
  z-index: 10;
  display: flex;
  flex-direction: column;
  box-shadow: -8px 0 24px rgba(0,0,0,0.4);
}
.drawer.open { transform: translateX(0); }
.drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}
.drawer-head .t {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-0);
}
.drawer-head .sub { font-family: var(--mono); font-size: 10px; color: var(--text-3); }
.drawer-head button.x {
  background: transparent; border: 1px solid var(--border);
  color: var(--text-2); width: 22px; height: 22px; cursor: pointer;
}
.drawer-body { flex: 1; overflow: auto; padding: 10px 12px; }
.drawer-section { margin-bottom: 14px; }
.drawer-section h4 {
  margin: 0 0 6px 0;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}
.drawer-grid { display: grid; grid-template-columns: 1fr auto; gap: 3px 8px; font-family: var(--mono); font-size: 11px; }
.drawer-grid .k { color: var(--text-3); }
.drawer-grid .v { color: var(--text-0); font-variant-numeric: tabular-nums; }
.drawer-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.drawer-actions button {
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  color: var(--text-0);
  padding: 5px 8px;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
}
.drawer-actions button:hover { background: var(--accent-dim); }
.drawer-actions button.warn:hover { background: var(--warn-dim); }
.drawer-actions button.danger:hover { background: var(--alarm-dim); }

/* Mini sparkbar */
.bar-h {
  position: relative;
  height: 6px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  overflow: hidden;
}
.bar-h .fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--accent); }
.bar-h .fill.ok { background: var(--ok); }
.bar-h .fill.warn { background: var(--warn); }
.bar-h .fill.alarm { background: var(--alarm); }
.bar-h .tick {
  position: absolute;
  top: -2px; bottom: -2px;
  width: 1px;
  background: var(--text-0);
  opacity: 0.6;
}

/* Tweaks panel */
.tweaks {
  position: fixed;
  right: 12px;
  bottom: 32px;
  width: 260px;
  background: var(--bg-1);
  border: 1px solid var(--border-strong);
  z-index: 200;
  font-family: var(--mono);
  font-size: 11px;
  display: none;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}
.tweaks.open { display: block; }
.tweaks .th {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--bg-2);
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-0);
}
.tweaks .tb { padding: 10px; display: flex; flex-direction: column; gap: 10px; }
.tweaks label { display: flex; flex-direction: column; gap: 4px; color: var(--text-2); font-size: 10px; text-transform: uppercase; letter-spacing: 0.04em; }
.tweaks .opts { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 2px; }
.tweaks .opts button {
  background: var(--bg-2); border: 1px solid var(--border); color: var(--text-2);
  padding: 4px 6px; font-family: var(--mono); font-size: 10px; cursor: pointer;
  text-transform: uppercase;
}
.tweaks .opts button.on { background: var(--accent-dim); color: var(--text-0); border-color: var(--accent-dim); }
.tweaks input[type="range"] { width: 100%; accent-color: var(--accent); }
.tweaks .toggle-row { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--text-1); text-transform: none; letter-spacing: 0; }
.tweaks .sw {
  position: relative; width: 28px; height: 14px; background: var(--bg-3); border: 1px solid var(--border);
  cursor: pointer;
}
.tweaks .sw::after {
  content: ''; position: absolute; top: 1px; left: 1px; width: 10px; height: 10px; background: var(--text-3);
  transition: all 0.12s;
}
.tweaks .sw.on { background: var(--accent-dim); border-color: var(--accent-dim); }
.tweaks .sw.on::after { left: 15px; background: var(--text-0); }

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: var(--bg-3); border: 2px solid var(--bg-0); }
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

/* Density */
body.density-compact { font-size: 11px; }
body.density-compact table.dense td { padding: 2px 6px; }
body.density-compact table.dense th { padding: 3px 6px; }
body.density-comfy { font-size: 13px; }
body.density-comfy table.dense td { padding: 6px 10px; }
body.density-comfy table.dense th { padding: 7px 10px; }

/* Events list */
.event-row {
  display: grid;
  grid-template-columns: 140px 80px 80px 1fr 120px;
  gap: 8px;
  padding: 3px 10px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10.5px;
  align-items: center;
}
.event-row .ts { color: var(--text-3); }
.event-row .sv { text-transform: uppercase; font-size: 9.5px; letter-spacing: 0.06em; }
.event-row .sv.info { color: var(--text-2); }
.event-row .sv.ok { color: var(--ok); }
.event-row .sv.warn { color: var(--warn); }
.event-row .sv.alarm { color: var(--alarm); }
.event-row .actor { color: var(--accent); }
.event-row .msg { color: var(--text-0); }
.event-row .src { color: var(--text-3); text-align: right; }

/* Equipment SVG styling */
.eq-label {
  font-family: var(--mono);
  font-size: 10px;
  fill: var(--text-2);
  letter-spacing: 0.04em;
}
.eq-value {
  font-family: var(--mono);
  font-size: 11px;
  fill: var(--text-0);
  font-weight: 500;
}
.pipe { stroke: var(--text-3); stroke-width: 2; fill: none; }
.pipe.hot { stroke: oklch(0.65 0.18 40); }
.pipe.cold { stroke: oklch(0.70 0.15 220); }
.pipe.vapor { stroke: oklch(0.70 0.05 240); stroke-dasharray: 4 3; }
.flow-arrow { fill: var(--text-2); }

.eq-btn {
  cursor: pointer;
}
.eq-btn:hover rect, .eq-btn:hover circle, .eq-btn:hover polygon { stroke: var(--accent) !important; }

/* Drawer overlay click area */
.overview .panel, .alarms-wrap .panel { min-height: 0; }

/* Pump spinner */
.pump-rotor {
  transform-origin: center;
  animation: spin 1.4s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.pump-off .pump-rotor { animation: none; }

/* Tank fill */
.tank-fill-rect { transition: all 0.6s ease; }

.hidden { display: none !important; }