:root {
  --fc: #1565C0;       /* CHD forecast (fcastonly+obsv) */
  --ob: #2E7D32;       /* CHD observed */
  --gd: #BF360C;       /* GDACS */
  --ad: #8E24AA;       /* ADAM */
  --ws34: #F9A825;
  --ws50: #E65100;
  --ws64: #C62828;
  --ink: #1a1a1a;
  --ink2: #555;
  --ink3: #888;
  --grid: #e6e6e6;
  --axis: #cfcfcf;
  --surface: #ffffff;
  --wash: #f4f6f8;
  --hl: #E3F2FD;
  --accent: #1565C0;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--surface);
  font-size: 14px;
  line-height: 1.45;
}

#topbar {
  position: sticky; top: 0; z-index: 1100;
  background: var(--surface);
  border-bottom: 1px solid var(--grid);
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.bar {
  max-width: 1320px; margin: 0 auto; padding: 10px 20px;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.ctl { display: flex; flex-direction: column; gap: 4px; }
.ctl.grow { flex: 1 1 200px; min-width: 190px; }
.ctl label, .ctl .lbl { font-size: 12px; color: var(--ink2); }
.ctl .radios { display: flex; gap: 12px; }
.ctl .radios label { font-size: 13px; color: var(--ink); }
.chk { font-size: 13px; color: var(--ink); }
.cap { font-size: 11px; color: var(--ink3); }
.stat { display: flex; flex-direction: column; min-width: 84px; }
.stat .lbl { font-size: 11px; color: var(--ink2); white-space: nowrap; }
.stat .val { font-size: 20px; font-weight: 600; font-variant-numeric: tabular-nums; }
#thrVal { display: inline-block; min-width: 8ch; font-variant-numeric: tabular-nums; }
#country { width: 172px; min-width: 172px; }
.ctl .radios { white-space: nowrap; }

.sliderline { display: flex; align-items: center; gap: 8px; }
.sliderline input[type="range"] { flex: 1 1 auto; min-width: 120px; }
.sliderline .cap { white-space: nowrap; min-width: 138px; }
.brk { width: 13px; height: 16px; position: relative; flex: none; }
.brk::before, .brk::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 2px;
  background: var(--axis); transform: skewX(-22deg);
}
.brk::before { left: 3px; }
.brk::after { left: 9px; }
.brk.off { display: none; }

select {
  font: inherit; padding: 5px 8px; border: 1px solid var(--axis);
  border-radius: 6px; background: var(--surface); min-width: 170px;
}
input[type="range"] { width: 100%; accent-color: var(--accent); }

main { max-width: 1200px; margin: 0 auto; padding: 8px 20px 80px; }
h1 { font-size: 26px; margin: 18px 0 4px; }
h2 { font-size: 19px; margin: 34px 0 10px; }
h3 { font-size: 14px; margin: 8px 0; color: var(--ink2); font-weight: 600; }
.note { color: var(--ink2); font-size: 13px; max-width: 760px; }

.row { display: flex; flex-direction: column; gap: 4px; margin: 10px 0; max-width: 560px; }
.row label { font-size: 13px; color: var(--ink2); }

#stormRow {
  position: sticky; top: var(--topbar-h, 62px); z-index: 1000;
  background: var(--surface); max-width: none;
  margin: 0 -8px; padding: 8px 8px 10px;
}
#stormRow select { max-width: 460px; }
#stormRow.stuck {
  border-bottom: 1px solid var(--grid);
  box-shadow: 0 6px 8px -6px rgba(0,0,0,.12);
}

figure { margin: 12px 0; }
.legend {
  display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 6px;
  font-size: 12px; color: var(--ink2); align-items: center;
}
.legend .key { display: inline-flex; align-items: center; gap: 6px; }
.legend .swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.legend .linekey { width: 16px; height: 0; border-top: 2px solid; display: inline-block; }

svg text { font-family: inherit; }
.tick { fill: var(--ink3); font-size: 11px; font-variant-numeric: tabular-nums; }
.axis-title { fill: var(--ink2); font-size: 12px; }
.facet-title { fill: var(--ink2); font-size: 12.5px; font-weight: 600; }
.refline-label { fill: var(--ink2); font-size: 11px; }
.nodata { fill: var(--ink3); font-size: 12px; }

details { margin: 10px 0; border: 1px solid var(--grid); border-radius: 8px; }
details summary {
  cursor: pointer; padding: 9px 14px; font-size: 13.5px; color: var(--ink);
  user-select: none;
}
details[open] summary { border-bottom: 1px solid var(--grid); }
details > *:not(summary) { margin: 10px 14px; }

.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { text-align: right; padding: 6px 10px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--ink2); font-weight: 600; font-size: 12px; }
td { font-variant-numeric: tabular-nums; }
tr.trig td { background: var(--hl); }
td.na { color: var(--ink3); }

.map { height: 460px; border-radius: 8px; }
.map.tall { height: 480px; }

.tiles { display: flex; gap: 36px; flex-wrap: wrap; margin: 12px 0; }
.tile .lbl { font-size: 12px; color: var(--ink2); }
.tile .val { font-size: 24px; font-weight: 600; }

.cols { display: grid; grid-template-columns: 3fr 2fr; gap: 24px; }
@media (max-width: 900px) { .cols { grid-template-columns: 1fr; } }

#tooltip {
  position: fixed; display: none; pointer-events: none; z-index: 2000;
  background: var(--surface); border: 1px solid var(--axis); border-radius: 7px;
  box-shadow: 0 3px 12px rgba(0,0,0,.12); padding: 8px 11px; font-size: 12.5px;
  max-width: 300px;
}
#tooltip .t-title { font-weight: 600; margin-bottom: 3px; }
#tooltip .t-row { display: flex; align-items: center; gap: 7px; margin: 2px 0; }
#tooltip .t-key { width: 14px; border-top: 2.5px solid; display: inline-block; flex: none; }
#tooltip .t-val { font-weight: 600; font-variant-numeric: tabular-nums; }
#tooltip .t-lbl { color: var(--ink2); }