/*
 * Components shared by the shell and the three panel tabs. The DOM for most of them is produced by
 * js/ui/dom.js (pill, tag, emptyState, errorState, skeleton, keyValue, block, rowButton, chipGroup, segmented).
 * Status and severity are never colour-only: every pill carries its text.
 */

/* ---- KPI cards ---------------------------------------------------------------------------------------- */
.kpi {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  height: var(--kpi-h);
  padding: 0 12px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-align: left;
}

button.kpi {
  transition: border-color 0.12s ease, background-color 0.12s ease;
}

button.kpi:hover {
  border-color: var(--accent-line);
  background: var(--card-hover);
}

.kpi__value {
  flex: none;
  min-width: 2ch;
  font-size: var(--fs-kpi);
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.kpi__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.25;
}

.kpi__label {
  font-size: var(--fs-min);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* The caption may take two lines on narrow cards; it is never cut off. */
.kpi__sub {
  font-size: var(--fs-min);
  line-height: 1.2;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.kpi[data-tone='critical'] .kpi__value {
  color: var(--status-critical);
}

.kpi[data-tone='warning'] .kpi__value {
  color: var(--status-at-risk);
}

.kpi[data-tone='attention'] .kpi__value {
  color: var(--status-watch);
}

/* ---- Pills and tags ----------------------------------------------------------------------------------- */
.pill {
  --pill-color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 20px;
  padding: 0 8px 0 6px;
  border: 1px solid color-mix(in srgb, var(--pill-color) 55%, transparent);
  border-radius: 99px;
  background: color-mix(in srgb, var(--pill-color) 14%, transparent);
  color: var(--text);
  font-size: var(--fs-min);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  flex: none;
}

.pill__mark {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pill-color);
  flex: none;
}

.pill[data-kind='asset'] .pill__mark {
  border-radius: 2px;
}

.pill[data-kind='asset'][data-value='normal'] { --pill-color: var(--status-normal); }
.pill[data-kind='asset'][data-value='watch'] { --pill-color: var(--status-watch); }
.pill[data-kind='asset'][data-value='at_risk'] { --pill-color: var(--status-at-risk); }
.pill[data-kind='asset'][data-value='critical'] { --pill-color: var(--status-critical); }
.pill[data-kind='asset'][data-value='not_monitored'] { --pill-color: var(--muted); }
.pill[data-kind='asset'][data-value='not_monitored'] .pill__mark { background: var(--status-not-monitored); border: 1px solid var(--muted); }

.pill[data-kind='sensor'][data-value='normal'] { --pill-color: var(--sensor-normal); }
.pill[data-kind='sensor'][data-value='warning'] { --pill-color: var(--sensor-warning); }
.pill[data-kind='sensor'][data-value='anomaly'] { --pill-color: var(--sensor-anomaly); }
.pill[data-kind='sensor'][data-value='anomaly'] .pill__mark { box-shadow: 0 0 0 1.5px #fff; }
.pill[data-kind='sensor'][data-value='offline'] { --pill-color: var(--sensor-offline); color: var(--muted); }
.pill[data-kind='sensor'][data-value='offline'] .pill__mark { background: transparent; border: 2px solid var(--sensor-offline); }

.pill[data-kind='severity'] .pill__mark { background: transparent; border: 2px solid var(--pill-color); }
.pill[data-kind='severity'][data-value='low'] { --pill-color: var(--sev-low); }
.pill[data-kind='severity'][data-value='medium'] { --pill-color: var(--sev-medium); }
.pill[data-kind='severity'][data-value='high'] { --pill-color: var(--sev-high); }
.pill[data-kind='severity'][data-value='critical'] { --pill-color: var(--sev-critical); }

.pill[data-kind='risk'] .pill__mark { border-radius: 1px; clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); width: 10px; height: 9px; }
.pill[data-kind='risk'][data-value='low'] { --pill-color: var(--risk-low); }
.pill[data-kind='risk'][data-value='moderate'] { --pill-color: var(--risk-moderate); }
.pill[data-kind='risk'][data-value='high'] { --pill-color: var(--risk-high); }
.pill[data-kind='risk'][data-value='very_high'] { --pill-color: var(--risk-very-high); }

.pill[data-kind='anomaly-status'][data-value='active'] { --pill-color: var(--accent); }
.pill[data-kind='anomaly-status'][data-value='resolved'] { --pill-color: var(--muted); color: var(--muted); }
.pill[data-kind='anomaly-status'][data-value='resolved'] .pill__mark { background: transparent; border: 2px solid var(--muted); }
.pill[data-kind='anomaly-status'][data-value='upcoming'] { --pill-color: var(--line); color: var(--muted); }

.tag {
  display: inline-flex;
  align-items: center;
  height: 18px;
  padding: 0 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: var(--fs-min);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--muted);
  white-space: nowrap;
  flex: none;
}

.tag[data-variant='simulated'] {
  border-color: rgba(245, 185, 66, 0.45);
  background: rgba(245, 185, 66, 0.08);
  color: #f7cf7d;
}

.tag[data-variant='real'] {
  border-color: rgba(45, 212, 191, 0.45);
  background: rgba(45, 212, 191, 0.08);
  color: #7fe6d7;
}

.tag[data-variant='derived'] {
  border-color: rgba(56, 189, 248, 0.45);
  background: rgba(56, 189, 248, 0.08);
  color: #8fd8fb;
}

/* Sensor type letter (T V M P): sensor type is never encoded by hue */
.glyph {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--inset);
  font-family: var(--font-mono);
  font-size: var(--fs-min);
  font-weight: 700;
  color: var(--text);
  flex: none;
}

/* ---- Tabs and panel shell ----------------------------------------------------------------------------- */
.tabs {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 4px;
  padding: 8px var(--pad) 0;
  border-bottom: 1px solid var(--line);
  flex: none;
}

.tab {
  position: relative;
  height: 32px;
  padding: 0 6px;
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  color: var(--muted);
  font-size: var(--fs-body);
  font-weight: 600;
  white-space: nowrap;
}

.tab:hover {
  color: var(--text);
  background: var(--card);
}

.tab[aria-selected='true'] {
  color: var(--text);
}

.tab[aria-selected='true']::after {
  content: '';
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: -1px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
}

.tab__count {
  margin-left: 5px;
  padding: 0 5px;
  border-radius: 99px;
  background: var(--inset);
  border: 1px solid var(--line);
  font-size: var(--fs-min);
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}

.tabpanel {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: var(--pad);
  display: flex;
  flex-direction: column;
  gap: var(--pad);
  transition: opacity 0.12s ease;
}

.tabpanel.is-busy,
.is-busy {
  opacity: 0.55;
}

/* Panel building blocks */
.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.panel-head__title {
  font-size: var(--fs-title);
  font-weight: 600;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.panel-head__sub {
  font-size: var(--fs-min);
  color: var(--muted);
}

.block {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.block__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.block__title {
  font-size: var(--fs-min);
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
}

.block__note {
  font-size: var(--fs-min);
  color: var(--muted);
}

.block[data-variant='recorded'] {
  border-left: 3px solid var(--status-normal);
}

.block[data-variant='simulated'] {
  border-left: 3px solid #f5b942;
}

.kv {
  display: grid;
  grid-template-columns: minmax(96px, max-content) minmax(0, 1fr);
  gap: 4px 12px;
  font-size: var(--fs-min);
}

.kv dt {
  color: var(--muted);
}

.kv dd {
  min-width: 0;
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}

.list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: 40px;
  padding: 6px 8px;
  background: var(--inset);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  text-align: left;
}

button.row:hover {
  background: var(--card-hover);
  border-color: var(--line);
}

.row[aria-current='true'],
.row.is-selected {
  background: var(--accent-soft);
  border-color: var(--accent-line);
}

.row__main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.row__title {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row__sub {
  font-size: var(--fs-min);
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row__trail {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  font-size: var(--fs-min);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.row__value {
  font-size: var(--fs-body);
  font-weight: 700;
}

.link-btn {
  background: none;
  border: 0;
  padding: 0;
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  text-align: left;
}

.link-btn:hover {
  text-decoration-thickness: 2px;
}

.filters {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.filters__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 24px;
  padding: 0 9px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-size: var(--fs-min);
  color: var(--muted);
}

.chip:hover {
  border-color: var(--accent-line);
}

.chip[aria-pressed='true'] {
  background: var(--card-hover);
  border-color: var(--accent-line);
  color: var(--text);
}

.chip[aria-pressed='true']::before {
  content: '✓';
  font-size: 11px;
  color: var(--accent);
}

.seg {
  display: inline-grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 2px;
  padding: 2px;
  background: var(--inset);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.seg__option {
  height: 24px;
  padding: 0 8px;
  background: transparent;
  border: 0;
  border-radius: 4px;
  font-size: var(--fs-min);
  color: var(--muted);
  white-space: nowrap;
}

.seg__option:hover {
  color: var(--text);
}

.seg__option[aria-pressed='true'],
.seg__option[aria-checked='true'] {
  background: var(--card-hover);
  color: var(--text);
  box-shadow: 0 0 0 1px var(--accent-line);
}

.data-table {
  font-size: var(--fs-min);
}

.data-table th,
.data-table td {
  padding: 5px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

.data-table th {
  color: var(--muted);
  font-weight: 600;
  white-space: nowrap;
}

.data-table td.num,
.data-table th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.figure-caption {
  font-size: var(--fs-min);
  color: var(--muted);
}

/* ---- Empty, error and loading states ------------------------------------------------------------------ */
.empty,
.error-state {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 14px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: var(--fs-body);
}

.empty__title,
.error-state__title {
  color: var(--text);
  font-weight: 600;
}

.empty__hint,
.error-state__detail {
  font-size: var(--fs-min);
  overflow-wrap: anywhere;
}

.error-state {
  border-style: solid;
  border-color: rgba(239, 90, 69, 0.5);
  background: rgba(239, 90, 69, 0.07);
}

.error-state__detail {
  font-family: var(--font-mono);
}

.error-state__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.skeleton {
  display: block;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--card) 0%, var(--card-hover) 50%, var(--card) 100%);
  background-size: 200% 100%;
  animation: skeleton-shift 1.4s ease-in-out infinite;
  min-height: 12px;
}

.skeleton--line {
  height: 12px;
}

.skeleton--row {
  height: 40px;
}

.skeleton--block {
  height: 96px;
  border-radius: var(--radius);
}

.skeleton--kpi {
  height: var(--kpi-h);
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.skeleton-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

@keyframes skeleton-shift {
  0% {
    background-position: 100% 0;
  }
  100% {
    background-position: -100% 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .skeleton {
    animation: none;
    background: var(--card);
  }
}

/* ---- Timeline ----------------------------------------------------------------------------------------- */
.tl-clock {
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: none;
  min-width: 262px;
  line-height: 1.2;
}

/* The long form (weekday and year) needs room; narrower layouts show the short form. */
.tl-clock__short {
  display: none;
}

.tl-clock__time {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.tl-clock__caption {
  font-size: var(--fs-min);
  color: #f7cf7d;
  font-weight: 600;
}

.tl-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: none;
}

.tl-controls .btn--play {
  width: 38px;
  border-color: var(--accent-line);
  color: var(--accent);
}

.tl-fields {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: none;
}

.tl-fields .select {
  padding: 0 4px;
}

.tl-track {
  position: relative;
  flex: 1 1 240px;
  min-width: 160px;
  height: 52px;
  align-self: center;
}

.tl-histogram {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 36px;
  display: block;
  background: var(--inset);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.tl-legend {
  position: absolute;
  left: 8px;
  top: 3px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-min);
  color: var(--muted);
  pointer-events: none;
  white-space: nowrap;
}

.tl-legend i {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  margin-right: 4px;
  vertical-align: -1px;
}

.tl-ticks {
  position: absolute;
  left: 0;
  right: 0;
  top: 37px;
  height: 15px;
  font-size: var(--fs-min);
  line-height: 15px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  overflow: hidden;
}

.tl-ticks span {
  position: absolute;
  transform: translateX(-50%);
  white-space: nowrap;
}

/* The range input lies over the histogram; its thumb is the cursor of the simulated clock. */
.tl-slider {
  --thumb-w: 12px;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 36px;
  margin: 0;
  padding: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.tl-slider::-webkit-slider-runnable-track {
  height: 36px;
  background: transparent;
}

.tl-slider::-moz-range-track {
  height: 36px;
  background: transparent;
}

.tl-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: var(--thumb-w);
  height: 36px;
  border: 0;
  border-radius: 3px;
  background: linear-gradient(90deg, transparent 0, transparent 5px, var(--text) 5px, var(--text) 7px, transparent 7px);
  box-shadow: none;
  cursor: ew-resize;
}

.tl-slider::-moz-range-thumb {
  width: var(--thumb-w);
  height: 36px;
  border: 0;
  border-radius: 3px;
  background: linear-gradient(90deg, transparent 0, transparent 5px, var(--text) 5px, var(--text) 7px, transparent 7px);
  cursor: ew-resize;
}

.tl-slider:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

@media (max-width: 1279px) {
  .tl-end .tl-end__text {
    display: none;
  }

  .tl-clock {
    min-width: 172px;
  }

  .tl-clock__long {
    display: none;
  }

  .tl-clock__short {
    display: inline;
  }

  .tl-track {
    min-width: 120px;
  }
}

@media (max-width: 899px) {
  .tl-clock {
    flex: 1 1 100%;
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
    min-width: 0;
  }

  .tl-clock__long {
    display: inline;
  }

  .tl-clock__short {
    display: none;
  }

  .tl-fields {
    flex-wrap: wrap;
  }

  .tl-track {
    flex: 1 1 100%;
  }

  .tl-end .tl-end__text {
    display: inline;
  }
}

@media (max-width: 479px) {
  .tl-end .tl-end__text {
    display: none;
  }
}

/* ---- Dialog ("About the data") ------------------------------------------------------------------------ */
.dialog {
  width: min(880px, calc(100vw - 32px));
  max-height: min(86vh, 900px);
  padding: 0;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.dialog::backdrop {
  background: var(--scrim);
}

.dialog__frame {
  display: flex;
  flex-direction: column;
  max-height: min(86vh, 900px);
}

.dialog__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  flex: none;
}

.dialog__title {
  font-size: var(--fs-title);
}

.dialog__body {
  padding: 14px 16px 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.dialog__section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dialog__section > h3 {
  font-size: 14px;
  color: var(--text);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
}

.dialog__section p,
.dialog__section li {
  color: #c6d2e0;
  max-width: 82ch;
}

.dialog__section ul {
  list-style: disc;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.table-scroll .data-table tr:last-child td {
  border-bottom: 0;
}

.formula {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-min);
  line-height: 1.6;
  background: var(--inset);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  color: var(--text);
  overflow-wrap: anywhere;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
}

.metric {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}

.metric__value {
  font-size: 18px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.metric__label {
  font-size: var(--fs-min);
  color: var(--muted);
}

.callout {
  border-left: 3px solid #f5b942;
  background: rgba(245, 185, 66, 0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 8px 10px;
  color: var(--text);
}