/* Water Quality Monitor — builds on styles.css */

:root {
  --good: #0ca30c;
  --fair: #fab219;
  --poor: #d03b3b;
  --nodata: #898781;
  --series-1: #2a78d6;
  --context: #c3c2b7;
  --grid: #e1e0d9;
}

.tab-panel[hidden] { display: none; }

/* --- stat row --- */

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.stat {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.9rem 1.1rem;
}

.stat .meta-label { margin-bottom: 0.3rem; }

.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.15;
}

.stat-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* --- zone cards --- */

#zone-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.zone-card {
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: inherit;
}

.zone-card:hover,
.zone-card:focus-visible {
  border-color: var(--teal);
  box-shadow: 0 2px 10px rgba(14, 116, 144, 0.12);
  outline: none;
}

.zone-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}

.zone-head h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.3;
}

.zone-score {
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  color: var(--navy);
  text-align: right;
}

.zone-score small {
  display: block;
  font-size: 0.66rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 0.2rem;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  color: #fff;
  background: var(--nodata);
  white-space: nowrap;
}

.status-badge.good { background: var(--good); }
.status-badge.fair { background: var(--fair); color: #3d2a00; }
.status-badge.poor { background: var(--poor); }

.conf-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: #fff;
}

.conf-badge.low { border-color: #e3b35b; color: #8a5a00; background: #fff8e8; }

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  border-top: 1px dashed var(--border);
  padding-top: 0.6rem;
}

.metric .meta-label { font-size: 0.64rem; }

.metric-val {
  font-size: 0.98rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.delta {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.delta.worse { color: #b42318; }
.delta.better { color: #006300; }

.zone-foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.spark { display: block; }

/* --- viewer --- */

.viewer-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  margin-bottom: 0.9rem;
}

.ctl select {
  display: block;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  background: #fff;
  min-width: 220px;
}

.ctl-check {
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding-bottom: 0.55rem;
}

.layer-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.viewer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.25rem;
  align-items: start;
}

@media (max-width: 860px) {
  .viewer-layout { grid-template-columns: 1fr; }
}

.map-frame {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1a1f;
  aspect-ratio: 1410 / 1670;
  max-height: 78vh;
  margin: 0 auto;
  width: 100%;
  cursor: grab;
  touch-action: none;
}

.map-frame.dragging { cursor: grabbing; }

.map-inner {
  position: absolute;
  inset: 0;
  transform-origin: 0 0;
}

.map-inner img,
.map-zones {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  user-select: none;
}

.map-zones polygon {
  fill: rgba(255, 255, 255, 0);
  stroke: #fff;
  stroke-width: 2;
  stroke-dasharray: var(--dash, 6 4);
  vector-effect: non-scaling-stroke;
  cursor: pointer;
}

.map-zones polygon:hover,
.map-zones polygon.active {
  fill: rgba(255, 255, 255, 0.12);
  stroke: #ffe066;
  stroke-dasharray: none;
}

.map-zones text {
  fill: #fff;
  font-size: var(--label-size, 22px);
  font-weight: 700;
  paint-order: stroke;
  stroke: rgba(0, 0, 0, 0.75);
  stroke-width: var(--label-stroke, 4px);
  pointer-events: none;
}

.zoom-ctl {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.zoom-ctl button {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: none;
  background: rgba(255, 255, 255, 0.92);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  cursor: pointer;
}

.map-tip {
  position: absolute;
  pointer-events: none;
  background: rgba(11, 57, 72, 0.94);
  color: #fff;
  font-size: 0.78rem;
  padding: 0.45rem 0.6rem;
  border-radius: 6px;
  max-width: 240px;
  line-height: 1.4;
}

.viewer-side h3 {
  font-size: 0.9rem;
  margin: 0 0 0.5rem;
}

.legend-bar {
  height: 12px;
  border-radius: 3px;
  margin: 0.3rem 0 0.2rem;
}

.legend-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.legend-note {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0.5rem 0 1rem;
}

.scene-zone-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
}

.scene-zone-row:hover,
.scene-zone-row.active { background: #f0fafa; }

/* --- trends --- */

.trend-chart { position: relative; }

.trend-chart svg {
  width: 100%;
  height: auto;
  display: block;
  font-family: inherit;
}

.trend-chart .axis-label { font-size: 11px; fill: #898781; font-variant-numeric: tabular-nums; }
.trend-chart .gridline { stroke: var(--grid); stroke-width: 1; }
.trend-chart .baseline { stroke: #c3c2b7; stroke-width: 1; }
.trend-chart .band { opacity: 0.08; }
.trend-chart .ctx-line { fill: none; stroke: var(--context); stroke-width: 1.5; }
.trend-chart .focus-line { fill: none; stroke: var(--series-1); stroke-width: 2; }
.trend-chart .focus-dot { fill: var(--series-1); stroke: #fff; stroke-width: 2; }
.trend-chart .crosshair { stroke: #898781; stroke-width: 1; stroke-dasharray: 3 3; }
.trend-chart .direct-label { font-size: 12px; font-weight: 700; fill: var(--text); }

.chart-tip {
  position: absolute;
  pointer-events: none;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  border-radius: 8px;
  padding: 0.5rem 0.65rem;
  font-size: 0.78rem;
  min-width: 190px;
}

.chart-tip .tip-date { font-weight: 700; margin-bottom: 0.3rem; }

.chart-tip .tip-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-variant-numeric: tabular-nums;
}

.chart-tip .tip-row.focus { font-weight: 700; }

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0.2rem 0 0.6rem;
}

.chart-legend span { display: inline-flex; align-items: center; gap: 0.4rem; }
.chart-legend i { display: inline-block; width: 18px; height: 3px; border-radius: 2px; }

.table-toggle summary {
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--teal);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
  margin-top: 0.6rem;
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--border);
  padding: 0.35rem 0.45rem;
  text-align: right;
}

.data-table th:first-child,
.data-table td:first-child { text-align: left; }

.table-scroll { overflow-x: auto; }

/* --- methodology --- */

.method h2 { margin-top: 1.4rem; }
.method h2:first-child { margin-top: 0; }
.method li, .method p { font-size: 0.9rem; line-height: 1.55; }
.method li { margin-bottom: 0.4rem; }
.method code { background: #eef4f5; padding: 0.05rem 0.3rem; border-radius: 4px; font-size: 0.82rem; }
.cite { font-size: 0.74rem; color: var(--text-muted); }

.method-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  margin: 0.4rem 0 0.8rem;
}

.method-table th,
.method-table td {
  text-align: left;
  border-bottom: 1px solid var(--border);
  padding: 0.5rem;
  vertical-align: top;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.75rem;
}

.method-grid .card { padding: 0.8rem 0.9rem; gap: 0.3rem; }
.method-grid h3 { margin: 0; font-size: 0.9rem; }
.method-grid .bands { font-size: 0.75rem; font-weight: 700; color: var(--teal); }
.method-grid p { margin: 0; font-size: 0.8rem; line-height: 1.45; }

.status-inline {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.05rem 0.5rem;
  border-radius: 999px;
  color: #fff;
}

.status-inline.good { background: var(--good); }
.status-inline.fair { background: var(--fair); color: #3d2a00; }
.status-inline.poor { background: var(--poor); }

/* modal extras */
.modal-panel h3 { margin: 0 0 0.3rem; }
.modal-panel .zone-desc { font-size: 0.88rem; line-height: 1.5; margin: 0.4rem 0 0.8rem; }

@media (max-width: 480px) {
  main { padding: 1rem; }
  .tabs { overflow-x: auto; }
  .tab-btn { margin-right: 0.4rem; white-space: nowrap; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .ctl select { min-width: 0; width: 100%; }
  .ctl { flex: 1 1 100%; }
}

.scene-zone-row > span:last-child { white-space: nowrap; }