:root {
  --bg:     #0a1419;
  --panel:  #0e1c22;
  --line:   #1c2c33;
  --text:   #e9ecef;
  --muted:  #7e8a92;
  --accent: #5cd3c4;
  --gap:    #ff9560;
  --avoided:#7be39a;

  /* Choropleth ramp - sequential, light-to-dark teal->red */
  --tier-1: #1c4a44;
  --tier-2: #2a7a6a;
  --tier-3: #c9a449;
  --tier-4: #e07a47;
  --tier-5: #d94353;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; background: var(--bg); color: var(--text);
  font-family: 'Manrope', sans-serif; font-size: 14px; line-height: 1.4; -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; border-bottom: 1px dotted var(--accent); }
a:hover { color: #7fe9da; }

body { display: grid; grid-template-columns: 380px 1fr; height: 100vh; overflow: hidden; }

#sidebar {
  background: var(--panel);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  padding: 20px 22px 24px;
  display: flex; flex-direction: column;
}

#sidebar header { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 18px; }
.brand { display: flex; gap: 10px; align-items: center; }
.brand h1 { font-size: 17px; font-weight: 800; letter-spacing: -0.01em; }
.brand .subtitle { font-size: 11px; color: var(--muted); margin-top: 1px; letter-spacing: 0.04em; text-transform: uppercase; white-space: nowrap; }

.dummy-pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  padding: 3px 7px;
  border-radius: 3px;
  background: rgba(255, 149, 96, 0.16);
  color: var(--gap);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  align-self: flex-start;
  margin-top: 4px;
  white-space: nowrap;
}

.kpis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 22px;
}
.kpi {
  background: rgba(255,255,255,0.012);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.kpi-wide { grid-column: 1 / -1; }
.kpi-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.kpi-label small { font-weight: 500; opacity: 0.6; text-transform: none; letter-spacing: 0; font-size: 10px; }
.kpi-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 18px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 2px;
}
.kpi-sub { font-size: 11px; color: var(--muted); margin-top: 1px; }
.kpi-gap .kpi-value { color: var(--gap); }
.kpi-gap { border-left: 2px solid var(--gap); }
.kpi-avoided .kpi-value { color: var(--avoided); }
.kpi-avoided { border-left: 2px solid var(--avoided); }

#sidebar h2 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 10px;
  font-weight: 700;
}

.choropleth-toggle {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.choropleth-toggle button {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  padding: 4px 7px;
  border-radius: 3px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.choropleth-toggle button:hover { color: var(--text); border-color: var(--text); }
.choropleth-toggle button.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 700;
}

.legend-bar { margin-bottom: 16px; }
.legend-gradient {
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(to right, var(--tier-1), var(--tier-2), var(--tier-3), var(--tier-4), var(--tier-5));
}
.legend-labels {
  display: flex; justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  margin-top: 4px;
}

.cc-toggle {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  cursor: pointer;
  padding: 9px 11px;
  margin-top: 12px;
  background: var(--surface-2, #131e23);
  border: 1px solid var(--line);
  border-radius: 6px;
  user-select: none;
  transition: border-color 140ms ease, background 140ms ease;
}
.cc-toggle:hover { border-color: #5cd3c4; }
.cc-toggle input { accent-color: #ff9560; cursor: pointer; }
.cc-toggle small { color: var(--muted); font-size: 10px; display: block; margin-top: 2px; }
.cc-toggle span { line-height: 1.3; }
.cc-toggle.active {
  border-color: #ff9560;
  background: rgba(255, 149, 96, 0.07);
}

.cc-pill {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 2px 6px;
  margin-left: 6px;
  border-radius: 3px;
  background: rgba(255, 149, 96, 0.18);
  color: #ff9560;
  border: 1px solid rgba(255, 149, 96, 0.35);
  vertical-align: middle;
}
.drill-cc-pill {
  font-size: 10px;
  padding: 3px 7px;
  margin-left: 10px;
}

.towns-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.sort-controls { display: flex; gap: 4px; }
.sort-controls button {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  padding: 4px 7px;
  border-radius: 3px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.sort-controls button:hover { color: var(--text); border-color: var(--text); }
.sort-controls button.active {
  background: var(--accent); color: var(--bg); border-color: var(--accent); font-weight: 700;
}

/* Catchment list rows */
.catchment-row {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 8px;
  transition: background 0.12s;
}
.catchment-row:hover { background: rgba(255,255,255,0.025); }
.catchment-row:last-child { border-bottom: 0; }
.catchment-row.active { background: rgba(92, 211, 196, 0.06); }
.catchment-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.005em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.catchment-name .swatch {
  width: 10px; height: 10px; border-radius: 2px;
  display: inline-block;
}
.catchment-name .drill-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 8.5px;
  background: var(--accent);
  color: var(--bg);
  padding: 1px 5px;
  border-radius: 3px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.catchment-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--gap);
  text-align: right;
  white-space: nowrap;
  font-weight: 700;
}
.catchment-num small {
  display: block;
  font-size: 9px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 1px;
}
.catchment-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--muted);
  grid-column: 1 / -1;
}
.catchment-bar {
  grid-column: 1 / -1;
  height: 4px;
  display: flex;
  border-radius: 2px;
  overflow: hidden;
  margin-top: 6px;
  background: #0f1a1f;
}
.catchment-bar .seg-protected { background: var(--avoided); }
.catchment-bar .seg-unprot    { background: var(--gap); }
.catchment-bar .seg-safe      { background: var(--line); flex: 1; }
.catchment-meta .badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  padding: 1px 5px;
  border-radius: 3px;
  margin-left: 4px;
  letter-spacing: 0.03em;
}
.catchment-meta .badge.prot { background: rgba(123, 227, 154, 0.16); color: var(--avoided); }
.catchment-meta .badge.gap  { background: rgba(255, 149, 96, 0.16); color: var(--gap); }

/* Map */
#map { background: #050b0e; }
.leaflet-container {
  background: #050b0e !important;
  font-family: 'Manrope', sans-serif;
}
.leaflet-control-attribution {
  background: rgba(10,20,25,0.85) !important;
  color: var(--muted) !important;
  font-size: 10px;
  padding: 1px 6px;
}
.leaflet-control-attribution a { color: var(--accent); }

.catch-popup .leaflet-popup-content-wrapper {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.55);
  min-width: 280px;
}
.catch-popup .leaflet-popup-tip { background: var(--panel); border: 1px solid var(--line); }
.catch-popup .leaflet-popup-close-button { color: var(--muted); padding-top: 6px; padding-right: 6px; }
.popup-title { font-size: 15px; font-weight: 800; margin-bottom: 8px; letter-spacing: -0.01em; }
.popup-subtitle { font-size: 10.5px; color: var(--muted); margin-bottom: 10px; font-family: 'JetBrains Mono', monospace; text-transform: uppercase; letter-spacing: 0.05em; }
.popup-row {
  display: grid; grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 4px 0;
  font-size: 12.5px;
  border-bottom: 1px dotted rgba(255,255,255,0.06);
}
.popup-row:last-child { border-bottom: 0; }
.popup-row .label { color: var(--muted); }
.popup-row .value {
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  text-align: right;
}
.popup-row .value.gap  { color: var(--gap); }
.popup-row .value.avoided { color: var(--avoided); }
.popup-row .value.accent { color: var(--accent); }
.popup-drill {
  margin-top: 10px;
  display: block;
  text-align: center;
  padding: 8px 12px;
  border-radius: 5px;
  background: var(--accent);
  color: var(--bg) !important;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 0;
  cursor: pointer;
  width: 100%;
  border-bottom: 0 !important;
}
.popup-drill:hover { background: #7fe9da; }

#legend {
  position: absolute;
  bottom: 18px;
  right: 18px;
  z-index: 800;
  background: rgba(14,28,34,0.92);
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 11px;
  pointer-events: none;
}
#legend > div {
  display: flex; align-items: center; gap: 8px;
  margin: 3px 0;
  color: var(--text);
}
#legend .legend-divider {
  border-top: 1px solid var(--line);
  margin: 6px 0;
  height: 1px;
}
#legend .dot {
  width: 13px; height: 13px;
  border-radius: 2px;
}
.dot-tier-1 { background: var(--tier-1); }
.dot-tier-2 { background: var(--tier-2); }
.dot-tier-3 { background: var(--tier-3); }
.dot-tier-4 { background: var(--tier-4); }
.dot-tier-5 { background: var(--tier-5); }
.dot-sub    { background: transparent; border: 1px dashed var(--accent); }

#sidebar footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.5;
}
#sidebar footer p + p { margin-top: 6px; }
#sidebar footer .warn { color: var(--gap); font-weight: 600; }

#sidebar-toggle {
  display: none;
  position: fixed; top: 14px; left: 14px; z-index: 900;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 18px;
  width: 36px; height: 36px;
  border-radius: 5px;
  cursor: pointer;
}

/* Drill-down panel */
#drill-panel {
  position: fixed;
  top: 0; right: 0;
  width: 440px;
  max-width: 92vw;
  height: 100vh;
  background: var(--panel);
  border-left: 1px solid var(--line);
  z-index: 1100;
  box-shadow: -12px 0 32px rgba(0,0,0,0.55);
  overflow-y: auto;
  animation: slidein 0.18s ease-out;
}
@keyframes slidein {
  from { transform: translateX(40px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
.drill-close {
  position: absolute;
  top: 14px; right: 14px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  width: 32px; height: 32px;
  border-radius: 4px;
  font-size: 20px;
  cursor: pointer;
  z-index: 2;
}
.drill-close:hover { color: var(--text); border-color: var(--text); }
#drill-content { padding: 28px 26px; }
#drill-content h2 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.015em;
  margin-bottom: 4px;
}
#drill-content .subtitle {
  font-size: 11.5px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 22px;
}
.drill-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 18px;
}
.drill-stat {
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 10px 12px;
}
.drill-stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.drill-stat-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px;
  font-weight: 700;
  margin-top: 4px;
  letter-spacing: -0.01em;
}
.drill-stat-value.gap { color: var(--gap); }
.drill-stat-value.avoided { color: var(--avoided); }
.drill-stat-value.accent { color: var(--accent); }
.drill-stat-sub { font-size: 10.5px; color: var(--muted); margin-top: 2px; }
.drill-stat-wide { grid-column: 1 / -1; }

#drill-content h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 20px 0 8px;
  font-weight: 700;
}

.drill-rivers {
  display: flex; flex-wrap: wrap; gap: 5px;
  margin-bottom: 4px;
}
.drill-rivers .river-chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--text);
}

.drill-bar-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px;
  font-size: 12px;
  margin-bottom: 8px;
}
.drill-bar-row .label { color: var(--muted); }
.drill-bar-row .value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
}
.drill-bar {
  grid-column: 1 / -1;
  height: 6px;
  background: #0f1a1f;
  border-radius: 3px;
  overflow: hidden;
  display: flex;
}
.drill-bar .seg-protected { background: var(--avoided); }
.drill-bar .seg-unprot { background: var(--gap); }

.drill-cta {
  display: block;
  margin-top: 24px;
  padding: 14px 18px;
  background: var(--accent);
  color: var(--bg);
  border-radius: 8px;
  font-weight: 800;
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 12px;
  border: 0;
  border-bottom: 0 !important;
  transition: background 0.12s;
}
.drill-cta:hover { background: #7fe9da; color: var(--bg); }
.drill-cta-sub { display: block; font-size: 10px; opacity: 0.7; margin-top: 4px; text-transform: none; letter-spacing: 0.02em; }
.drill-cta.disabled { background: rgba(255,255,255,0.05); color: var(--muted); cursor: not-allowed; }
.drill-cta.disabled:hover { background: rgba(255,255,255,0.05); }

.spark {
  display: flex; align-items: end; gap: 3px;
  height: 28px;
  margin-top: 6px;
}
.spark-bar { width: 14px; background: var(--accent); border-radius: 2px 2px 0 0; opacity: 0.65; }
.spark-bar.last { opacity: 1; }

/* Mobile */
@media (max-width: 880px) {
  body { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  #sidebar {
    position: fixed; left: 0; right: 0; top: 0;
    height: 100vh; max-height: 100vh;
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.18s;
  }
  #sidebar.open { transform: translateX(0); }
  #sidebar-toggle { display: block; }
  #map { height: 100vh; }
  #drill-panel { width: 100vw; max-width: 100vw; }
}

.back-link {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  padding: 6px 10px;
  margin: 4px 0 16px;
  border: 1px solid var(--line);
  border-radius: 4px;
  transition: color 140ms ease, border-color 140ms ease;
}
.back-link:hover { color: #0ABAB5; border-color: #0ABAB5; }