/* Optimal Trend - Plant Dashboard page CSS
   DP4 Wave 2 refactor 2026-05-24
   Depends on optimal-design-system.css for chassis tokens and primitives.
   Tree panel retained for hierarchy navigation (client > plant > area).
   No off-palette colours; chart-region exception not invoked on this page. */

.ot-plant-dashboard {
  display: grid;
  grid-template-columns: minmax(240px, 280px) 1fr;
  min-height: calc(100vh - var(--topbar-h) - 48px);
  background: var(--white);
}

/* Tree panel */
.ot-plant-dashboard__tree {
  background: var(--paper);
  border-right: 1px solid var(--rule-light);
  padding: 16px 14px;
  overflow-y: auto;
}

.ot-plant-dashboard__search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--rule);
  padding: 8px 10px;
  margin: 0 0 14px;
}

.ot-plant-dashboard__search svg {
  width: 16px;
  height: 16px;
  color: var(--ink-4);
  flex: 0 0 16px;
}

.ot-plant-dashboard__search input {
  border: 0;
  flex: 1;
  font-size: 12px;
  color: var(--ink);
  background: transparent;
  outline: none;
  min-width: 0;
}

.ot-plant-dashboard__tree-menu {
  display: grid;
  gap: 2px;
  font-size: 13px;
}

.ot-plant-dashboard__tree-item {
  padding: 6px 8px;
  border-left: 3px solid transparent;
  cursor: pointer;
  color: var(--ink-2);
}

.ot-plant-dashboard__tree-item--root { font-weight: 700; color: var(--navy); }
.ot-plant-dashboard__tree-item--branch { padding-left: 18px; color: var(--navy); background: var(--teal-light); border-left-color: var(--teal); cursor: default; }
.ot-plant-dashboard__tree-item--leaf { padding-left: 28px; color: var(--ink-3); cursor: pointer; }

.ot-plant-dashboard__tree-children { display: none; }
.ot-plant-dashboard__tree-children.is-open { display: grid; gap: 2px; }

.ot-plant-dashboard__tree-hidden {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--ink-4);
  padding: 10px 4px 0;
  margin-top: 12px;
  border-top: 1px solid var(--rule-light);
}

.ot-plant-dashboard__tree-hidden svg { width: 16px; height: 16px; flex: 0 0 16px; }

/* Right content */
.ot-plant-dashboard__content {
  display: grid;
  grid-template-rows: auto auto 1fr;
  min-width: 0;
  background: var(--white);
}

.ot-plant-dashboard__stack {
  padding: 14px 24px 24px;
  display: grid;
  gap: 18px;
  min-width: 0;
}

/* KPI strip */
.ot-plant-dashboard__kpi-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.ot-plant-dashboard__kpi-card {
  background: var(--white);
  border: 1px solid var(--rule-light);
  padding: 14px 16px;
}

.ot-plant-dashboard__kpi-label {
  font-size: 11px;
  color: var(--ink-4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.ot-plant-dashboard__kpi-value {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.1;
  margin-top: 4px;
}

.ot-plant-dashboard__kpi-sub {
  font-size: 11px;
  color: var(--ink-4);
  margin-top: 6px;
  line-height: 1.4;
}

/* Cards grid */
.ot-plant-dashboard__cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.ot-plant-dashboard__card {
  background: var(--white);
  border: 1px solid var(--rule-light);
  padding: 16px 18px;
}

.ot-plant-dashboard__card--wide {
  grid-column: span 2;
}

@media (max-width: 768px) {
  .ot-plant-dashboard__card--wide { grid-column: span 1; }
}

.ot-plant-dashboard__card-title {
  font-family: Georgia, "Times New Roman", serif;
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.ot-plant-dashboard__details-link {
  color: var(--teal);
  font-size: 11px;
  text-decoration: none;
  font-weight: 600;
}

.ot-plant-dashboard__details-link:hover {
  color: var(--navy);
  text-decoration: underline;
}

/* Help icon + popover */
.ot-plant-dashboard__help-icon {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-4);
  width: 18px;
  height: 18px;
  font-size: 11px;
  cursor: help;
  display: inline-grid;
  place-items: center;
  margin-left: 4px;
  border-radius: 999px;
  position: relative;
}

.ot-plant-dashboard__help-popover {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  right: 0;
  background: var(--navy-dark);
  color: var(--white);
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 400;
  width: 240px;
  z-index: 30;
  line-height: 1.5;
  text-transform: none;
  letter-spacing: 0;
}

.ot-plant-dashboard__help-icon:hover .ot-plant-dashboard__help-popover,
.ot-plant-dashboard__help-icon:focus-visible .ot-plant-dashboard__help-popover {
  display: block;
}

/* Gauge SVG container */
.ot-plant-dashboard__gauge-wrap {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ot-plant-dashboard__gauge { width: 180px; height: 180px; }

.ot-plant-dashboard__gauge-date {
  text-align: center;
  font-size: 11px;
  color: var(--ink-4);
  margin-top: 6px;
}

.ot-plant-dashboard__gauge-comparison {
  text-align: center;
  font-size: 11px;
  color: var(--ink-4);
  margin-top: 4px;
}

/* Compliance card */
.ot-plant-dashboard__compliance-metric {
  text-align: center;
  margin: 10px 0;
}

.ot-plant-dashboard__compliance-large {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.1;
}

.ot-plant-dashboard__compliance-collected {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--teal);
}

.ot-plant-dashboard__compliance-label {
  font-size: 11px;
  color: var(--ink-4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.ot-plant-dashboard__progress {
  width: 100%;
  height: 8px;
  background: var(--rule-light);
  margin: 8px 0;
  overflow: hidden;
}

.ot-plant-dashboard__progress-fill {
  height: 100%;
  background: var(--teal);
  transition: width 200ms ease-out;
}

.ot-plant-dashboard__compliance-footer {
  font-size: 11px;
  color: var(--ink-4);
  margin-top: 8px;
  line-height: 1.5;
  text-align: center;
}

/* History chart container */
.ot-plant-dashboard__history-chart-wrap {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ot-plant-dashboard__history-chart-svg {
  width: 100%;
  height: 150px;
}

.ot-plant-dashboard__chart-axis { stroke: var(--rule); stroke-width: 1; }
.ot-plant-dashboard__chart-grid-line { stroke: var(--rule-light); stroke-width: 1; }
.ot-plant-dashboard__chart-label {
  fill: var(--ink-4);
  font-size: 10px;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

/* Severity badge */
.ot-plant-dashboard__severity-badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--paper);
  color: var(--ink-3);
  border: 1px solid var(--rule);
}

.ot-plant-dashboard__severity-badge--moderate {
  background: var(--paper);
  color: var(--ink-3);
}

.ot-plant-dashboard__history-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

/* No-data card */
.ot-plant-dashboard__no-data {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 18px 12px;
  color: var(--ink-4);
  font-size: 12px;
  text-align: center;
}

.ot-plant-dashboard__robot-icon {
  width: 64px;
  height: 64px;
  opacity: 0.45;
  color: var(--ink-4);
}

/* Asset status donut */
.ot-plant-dashboard__donut-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 140px;
}

.ot-plant-dashboard__donut { width: 130px; height: 130px; }

/* Legend */
.ot-plant-dashboard__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 11px;
  color: var(--ink-3);
  margin-top: 12px;
}

.ot-plant-dashboard__legend--centred {
  justify-content: center;
  flex-direction: row;
  gap: 16px;
}

.ot-plant-dashboard__legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ot-plant-dashboard__legend-color {
  width: 10px;
  height: 10px;
  display: inline-block;
  background: var(--teal);
}

/* Severity trend chart */
.ot-plant-dashboard__severity-chart-wrap {
  min-height: 280px;
  height: clamp(280px, 22vw, 360px);
  display: flex;
  align-items: stretch;
  justify-content: stretch;
}

.ot-plant-dashboard__severity-chart-svg {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 280px;
}

/* Tab group (collection due card) */
.ot-plant-dashboard__tab-group {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--rule-light);
  margin-bottom: 10px;
}

.ot-plant-dashboard__tab {
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 8px 12px;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  color: var(--ink-4);
}

.ot-plant-dashboard__tab.active {
  border-bottom-color: var(--teal);
  color: var(--navy);
  font-weight: 600;
}

/* Table */
.ot-plant-dashboard__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  margin-top: 8px;
}

.ot-plant-dashboard__table th,
.ot-plant-dashboard__table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--rule-light);
  text-align: left;
  color: var(--ink-2);
}

.ot-plant-dashboard__table th {
  background: var(--paper);
  color: var(--navy);
  font-weight: 700;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Blind spot card */
.ot-plant-dashboard__blind-spot-icon {
  display: flex;
  justify-content: center;
  margin: 20px 0;
}

.ot-plant-dashboard__blind-spot-number {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  line-height: 1;
  margin-top: 8px;
}

.ot-plant-dashboard__blind-spot-text {
  text-align: center;
  font-size: 11px;
  color: var(--ink-4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  margin-top: 4px;
}

/* Mobile menu */
.ot-plant-dashboard__mobile-menu-btn { display: none; }

@media (max-width: 980px) {
  .ot-plant-dashboard { grid-template-columns: 1fr; }
  .ot-plant-dashboard__tree {
    border-right: 0;
    border-bottom: 1px solid var(--rule-light);
  }
  .ot-plant-dashboard__mobile-menu-btn {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    background: var(--navy);
    color: var(--white);
    border: 0;
    cursor: pointer;
  }
}

@media (max-width: 768px) {
  .ot-plant-dashboard__cards-grid { grid-template-columns: 1fr; }
  .ot-plant-dashboard__stack { padding: 12px 14px; }
}

/* Plant operations content moved from the former fleet page. */
.plant-dashboard-moved-content {
  display: block;
  min-width: 0;
}

.plant-dashboard-moved-content .cards-container {
  display: block;
  min-width: 0;
}

.plant-dashboard-moved-content .sla-scorecard,
.plant-dashboard-moved-content .rod-mill-grid,
.plant-dashboard-moved-content .fleet-downtime-card,
.plant-dashboard-moved-content .activity-feed-card,
.plant-dashboard-moved-content .analytics-spectrum {
  width: 100%;
  max-width: none;
}

.plant-dashboard-moved-content .rod-mill-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

@media (max-width: 900px) {
  .plant-dashboard-moved-content .spectrum-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .plant-dashboard-moved-content .rod-mill-grid,
  .plant-dashboard-moved-content .spectrum-grid {
    grid-template-columns: 1fr;
  }
}