:root {
  color-scheme: light;
  --surface-1: #fcfcfb;
  --page-plane: #f9f9f7;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --gridline: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --chip-bg: #f2f1ed;

  --zone-north: #2a78d6;
  --zone-south: #1baf7a;
  --zone-east: #eb6834;
  --zone-west: #4a3aa7;
  --zone-central: #008300;

  --status-good: #0ca30c;
  --status-warning: #fab219;

  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --surface-1: #1a1a19;
    --page-plane: #0d0d0d;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --gridline: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --chip-bg: #242422;

    --zone-north: #3987e5;
    --zone-south: #199e70;
    --zone-east: #d95926;
    --zone-west: #9085e9;
    --zone-central: #008300;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-1: #1a1a19;
  --page-plane: #0d0d0d;
  --text-primary: #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted: #898781;
  --gridline: #2c2c2a;
  --baseline: #383835;
  --border: rgba(255, 255, 255, 0.10);
  --chip-bg: #242422;

  --zone-north: #3987e5;
  --zone-south: #199e70;
  --zone-east: #d95926;
  --zone-west: #9085e9;
  --zone-central: #008300;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--page-plane);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

header.top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

header.top h1 {
  font-size: 1.5rem;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}

header.top p.sub {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
  max-width: 60ch;
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--surface-1);
  color: var(--text-secondary);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  white-space: nowrap;
}

.disclaimer {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-left: 3px solid var(--status-warning);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.disclaimer strong { color: var(--text-primary); }

/* Stat tiles */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}
.stat-tile {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.stat-tile .val {
  font-size: 1.4rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.stat-tile .lab {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}
@media (max-width: 720px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
}

/* Filters */
.filters {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.filter-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-row .row-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 84px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.chip {
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 0.82rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  line-height: 1.3;
}
.chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}
.chip.active {
  background: var(--text-primary);
  color: var(--surface-1);
  border-color: var(--text-primary);
}
.chip.active .dot { outline: 2px solid var(--surface-1); }

#searchInput {
  flex: 1;
  min-width: 180px;
  border: 1px solid var(--border);
  background: var(--page-plane);
  color: var(--text-primary);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 0.85rem;
  font-family: inherit;
}

/* Map */
.map-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  margin-bottom: 12px;
}
#map {
  height: 480px;
  width: 100%;
  border-radius: 8px;
  background: var(--gridline);
}
.leaflet-popup-content-wrapper {
  background: var(--surface-1);
  color: var(--text-primary);
  border-radius: 10px;
}
.leaflet-popup-tip {
  background: var(--surface-1);
}
.map-popup h4 {
  margin: 0 0 4px;
  font-size: 0.9rem;
}
.map-popup .mp-row {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 2px;
}
.map-popup .mp-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed var(--gridline);
}
.map-popup button.mp-jump {
  margin-top: 8px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-primary);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 0.72rem;
  cursor: pointer;
}

/* Timeline */
.section-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 4px;
}
.section-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0 0 12px;
}
.timeline-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 24px;
  overflow-x: auto;
}
svg.timeline text { font-family: var(--font); fill: var(--text-muted); }
.tl-lane-label { font-size: 11px; fill: var(--text-secondary); }
.tl-axis-label { font-size: 10px; }
.tl-gridline { stroke: var(--gridline); stroke-width: 1; }
.tl-baseline { stroke: var(--baseline); stroke-width: 1; }
.tl-today { stroke: var(--text-primary); stroke-width: 1.5; stroke-dasharray: 3 3; }
.tl-band { fill: var(--zone-north); opacity: 0.06; }
.tl-dot { stroke: var(--surface-1); stroke-width: 2; cursor: pointer; }
.tl-dot.muted { opacity: 0.35; }
.tl-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--text-primary);
  color: var(--surface-1);
  font-size: 0.75rem;
  padding: 8px 10px;
  border-radius: 8px;
  max-width: 240px;
  line-height: 1.4;
  z-index: 20;
  opacity: 0;
  transition: opacity 0.1s;
}
.timeline-wrap { position: relative; }

/* Zone bar chart */
.zonebar-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 24px;
}
.zonebar-row {
  display: grid;
  grid-template-columns: 90px 1fr 34px;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 0.82rem;
}
.zonebar-track {
  background: var(--gridline);
  border-radius: 4px;
  height: 10px;
  overflow: hidden;
}
.zonebar-fill {
  height: 100%;
  border-radius: 4px;
}
.zonebar-count { text-align: right; font-variant-numeric: tabular-nums; color: var(--text-secondary); }
.zonebar-name { display: flex; align-items: center; gap: 6px; color: var(--text-secondary); }

/* Legend */
.legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: -8px 0 24px;
}
.legend span.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 5px; }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 12px;
  margin-bottom: 8px;
}
.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  border-top: 3px solid var(--zone-north);
}
.card h3 {
  font-size: 0.98rem;
  margin: 0 0 3px;
}
.card .builder {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.card .area {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.card .meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  margin-bottom: 6px;
}
.card .ticket {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.handover-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.76rem;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--text-secondary);
}
.handover-badge .dot { width: 7px; height: 7px; border-radius: 50%; }
.card .note {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--gridline);
}
.zone-chip {
  font-size: 0.72rem;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 0;
  font-size: 0.9rem;
}

footer.methodology {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
}
footer.methodology a { color: var(--text-secondary); }