:root {
  --plane:#f7f7f4;
  --surface:#ffffff;
  --surface2:#eeeeea;
  --ink:#121212;
  --ink2:#4f4d49;
  --muted:#817e77;
  --border:rgba(18,18,18,0.12);
  --series:#256db4;
  --accent:#d85d31;
  --good:#24745a;
  --grid:#ddddda;
}

@media (prefers-color-scheme: dark) {
  :root {
    --plane:#101010;
    --surface:#1b1b1a;
    --surface2:#252522;
    --ink:#f7f7f4;
    --ink2:#cac7bf;
    --muted:#918d84;
    --border:rgba(255,255,255,0.12);
    --series:#4d95df;
    --accent:#e06b43;
    --good:#6bb99f;
    --grid:#30302d;
  }
}

* { box-sizing:border-box; }
html, body { margin:0; min-height:100%; }
body {
  background:var(--plane);
  color:var(--ink);
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
}
a { color:var(--series); }

.topbar {
  align-items:end;
  border-bottom:1px solid var(--border);
  display:flex;
  gap:20px;
  justify-content:space-between;
  padding:22px 28px;
}
.topbar h1 { font-size:26px; margin:0 0 4px; }
.topbar p { color:var(--ink2); margin:0; }
.source-note { color:var(--muted); font-size:13px; text-align:right; }

.checklist-shell {
  margin:0 auto;
  max-width:1180px;
  padding:22px 28px 40px;
}
.controls {
  display:grid;
  gap:12px;
  grid-template-columns:1fr 210px 240px;
  margin-bottom:16px;
}
.field span {
  color:var(--muted);
  display:block;
  font-size:11px;
  letter-spacing:0.04em;
  margin-bottom:5px;
  text-transform:uppercase;
}
input, select {
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:8px;
  color:var(--ink);
  font:inherit;
  padding:10px 11px;
  width:100%;
}
.summary-strip {
  border-block:1px solid var(--border);
  display:grid;
  gap:1px;
  grid-template-columns:repeat(3, 1fr);
  margin-bottom:22px;
}
.summary-strip div {
  background:var(--surface);
  padding:14px 16px;
}
.summary-strip b {
  display:block;
  font-size:24px;
}
.summary-strip span, .facts span { color:var(--muted); font-size:12px; }
.list-head {
  align-items:baseline;
  display:flex;
  justify-content:space-between;
  margin-bottom:10px;
}
.list-head h2 { font-size:17px; margin:0; }
#visibleCount { color:var(--muted); font-size:13px; }
.species-list {
  border-top:1px solid var(--border);
}
.species-row {
  align-items:start;
  border-bottom:1px solid var(--border);
  display:grid;
  gap:16px;
  grid-template-columns:minmax(210px, 0.8fr) minmax(280px, 1.4fr) 145px 110px;
  padding:14px 0;
}
.species-title a {
  font-size:16px;
  font-weight:700;
  text-decoration:none;
}
.species-title .disabled {
  color:var(--ink);
  font-size:16px;
  font-weight:700;
}
.species-title em {
  color:var(--ink2);
  display:block;
  font-size:13px;
  margin-top:2px;
}
.species-desc {
  color:var(--ink2);
  font-size:13px;
  line-height:1.45;
  margin:0;
}
.species-meta {
  color:var(--muted);
  font-size:12px;
  line-height:1.45;
  margin:6px 0 0;
}
.badge {
  border:1px solid var(--border);
  border-radius:999px;
  color:var(--ink2);
  display:inline-block;
  font-size:12px;
  padding:4px 8px;
  white-space:nowrap;
}
.badge.good { border-color:rgba(36,116,90,0.35); color:var(--good); }
.count-cell {
  color:var(--ink2);
  font-size:13px;
  text-align:right;
}
.count-cell b { color:var(--ink); display:block; font-size:17px; }
.references {
  border-top:1px solid var(--border);
  color:var(--ink2);
  font-size:13px;
  line-height:1.55;
  margin-top:28px;
  padding-top:18px;
}
.references h2 {
  color:var(--ink);
  font-size:17px;
  margin:0 0 8px;
}
.references p {
  margin:8px 0 0;
}

.species-page {
  display:grid;
  grid-template-columns:380px 1fr;
  height:100vh;
  overflow:hidden;
}
.species-panel {
  background:var(--surface);
  border-right:1px solid var(--border);
  display:flex;
  flex-direction:column;
  gap:15px;
  overflow-y:auto;
  padding:18px;
}
.back-link {
  font-size:13px;
  text-decoration:none;
}
.species-panel h1 {
  font-size:23px;
  line-height:1.15;
  margin:0;
}
.sci {
  color:var(--ink2);
  font-style:italic;
  margin:0;
}
.description {
  color:var(--ink2);
  font-size:13px;
  line-height:1.5;
  margin:0;
}
.data-message {
  background:var(--surface2);
  border-left:3px solid var(--accent);
  border-radius:6px;
  color:var(--ink2);
  font-size:13px;
  line-height:1.45;
  margin:0;
  padding:10px;
}
.checklist-details {
  border-top:1px solid var(--border);
  display:grid;
  gap:7px;
  padding-top:12px;
}
.checklist-details div {
  color:var(--ink2);
  display:flex;
  font-size:12px;
  gap:8px;
  justify-content:space-between;
}
.checklist-details b {
  color:var(--muted);
  font-weight:600;
}
.facts {
  display:grid;
  gap:1px;
  grid-template-columns:1fr;
}
.facts div {
  background:var(--surface2);
  border-radius:7px;
  padding:10px;
}
.facts b {
  display:block;
  font-size:19px;
}
.year-control label, figcaption {
  color:var(--muted);
  display:block;
  font-size:11px;
  letter-spacing:0.04em;
  margin-bottom:6px;
  text-transform:uppercase;
}
.yearrow {
  align-items:center;
  display:grid;
  gap:8px;
  grid-template-columns:42px 1fr 1fr 42px;
}
.yearrow output {
  color:var(--ink2);
  font-size:12px;
  font-variant-numeric:tabular-nums;
  text-align:center;
}
input[type=range] { accent-color:var(--series); padding:0; }
figure { margin:0; }
.chart-wrap { position:relative; }
.tip {
  background:var(--ink);
  border-radius:5px;
  color:var(--surface);
  font-size:11px;
  opacity:0;
  padding:3px 7px;
  pointer-events:none;
  position:absolute;
  transform:translate(-50%,-140%);
  transition:opacity .1s;
  white-space:nowrap;
}
.legendbar {
  align-items:center;
  color:var(--muted);
  display:flex;
  font-size:11px;
  gap:7px;
}
.legendbar .grad {
  background:linear-gradient(90deg,#f9d76e,#ef9d3a,#d85d31,#8c2621);
  border-radius:999px;
  flex:1;
  height:8px;
}
.note {
  border-top:1px solid var(--border);
  color:var(--muted);
  font-size:11px;
  line-height:1.5;
  margin:0;
  padding-top:12px;
}
#map { height:100vh; width:100%; }
.leaflet-container { background:var(--plane); }

@media (max-width:860px) {
  .topbar { align-items:start; flex-direction:column; padding:18px; }
  .checklist-shell { padding:18px; }
  .controls { grid-template-columns:1fr; }
  .summary-strip { grid-template-columns:1fr; }
  .species-row { grid-template-columns:1fr; gap:8px; }
  .count-cell { text-align:left; }
  .species-page {
    display:block;
    height:auto;
    overflow:auto;
  }
  .species-panel {
    border-right:0;
    border-bottom:1px solid var(--border);
    max-height:none;
  }
  #map { height:62vh; }
}