:root {
  --bg: #ffffff;
  --panel: rgba(255, 255, 255, 0.96);
  --text: #16202a;
  --muted: #5d6b78;
  --border: #d8dee4;
  --field: #f3f5f7;
  --accent: #1d6fd1;
  --accent-text: #ffffff;
  --a: #2b78ff;
  --b: #ff9614;
  --good: #1f9d55;
  --warn: #c98a00;
  --bad: #d23b3b;
  --terrain: #b9a27f;
  --terrain-line: #7d6645;
  --fresnel: rgba(43, 120, 255, 0.14);
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
  --green-text: #1a8a00; /* dayglow green is unreadable as text on white */
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1720;
    --panel: rgba(20, 28, 38, 0.96);
    --text: #e6edf3;
    --muted: #9aa8b5;
    --border: #2d3b49;
    --field: #1b2632;
    --accent: #4b93ff;
    --terrain: #6f5f47;
    --terrain-line: #b39a74;
    --fresnel: rgba(75, 147, 255, 0.2);
    --shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
    --green-text: #39ff14;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

#map { position: fixed; inset: 0; }

.leaflet-container { font: inherit; background: #1a1f24; }
.leaflet-pane.leaflet-labels-pane { pointer-events: none; }

/* ---------- Panel ---------- */
.panel {
  position: fixed;
  top: 10px;
  left: 10px;
  width: 340px;
  max-height: calc(100% - 20px);
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  z-index: 1000;
  backdrop-filter: blur(6px);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 8px; }
.brand h1 { font-size: 17px; margin: 0; letter-spacing: 0.2px; }

.panel-body {
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.panel-body > * { flex-shrink: 0; } /* scroll instead of squashing sections */
.panel.collapsed .panel-body { display: none; }
.panel.collapsed .panel-head { border-bottom: 0; }
.panel.collapsed #panelToggle svg { transform: rotate(180deg); }

.icon-btn {
  background: none;
  border: 0;
  color: var(--text);
  padding: 4px;
  border-radius: 6px;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.icon-btn:hover { background: var(--field); }

/* ---------- Controls ---------- */
.search { display: flex; gap: 6px; }
.search input { flex: 1; min-width: 0; }

input[type="search"], input[type="number"], select {
  font: inherit;
  color: var(--text);
  background: var(--field);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 9px;
}
input:focus-visible, select:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.btn {
  font: inherit;
  border: 1px solid var(--border);
  background: var(--field);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  display: inline-grid;
  place-items: center;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn:disabled { opacity: 0.5; cursor: default; }

.results {
  list-style: none;
  margin: -6px 0 0;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--field);
  max-height: 160px;
  overflow-y: auto;
  overflow-x: hidden;
}
.results li button {
  all: unset;
  display: block;
  width: 100%;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.results li button:hover, .results li button:focus-visible { background: var(--border); }
.results li button.on { box-shadow: inset 3px 0 0 var(--accent); }
.results li button span { display: block; color: var(--muted); font-size: 11.5px; margin-top: 1px; }
.results .results-head { color: var(--muted); font-size: 12px; padding: 4px 8px 2px; }

.search-msg {
  margin-top: -4px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.35;
  border: 1px solid transparent;
}
.search-msg.info { color: var(--muted); padding: 2px 2px; }
.search-msg.warn { background: rgba(201, 138, 0, 0.14); border-color: rgba(201, 138, 0, 0.5); }
.search-msg.error { background: rgba(210, 59, 59, 0.14); border-color: var(--bad); }
.search-msg.error strong { color: var(--bad); }

.seg {
  display: flex;
  background: var(--field);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 3px;
  gap: 3px;
}
.seg button {
  flex: 1;
  font: inherit;
  border: 0;
  background: none;
  color: var(--text);
  padding: 6px 8px;
  border-radius: 7px;
  cursor: pointer;
}
.seg button[aria-checked="true"] { background: var(--accent); color: var(--accent-text); font-weight: 600; }
.seg.small { flex: 0 0 auto; }
.seg.small button { flex: 0 0 auto; padding: 3px 10px; }
.seg.small button[aria-checked="true"] { background: var(--panel); box-shadow: inset 0 0 0 2px var(--text); }
.seg.small button[aria-checked="false"] .badge { opacity: 0.45; }

.row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.lbl { color: var(--muted); }
.field select, .field input[type="number"] { max-width: 170px; }

.station {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.st-head { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.st-place { font-weight: 600; font-size: 13.5px; line-height: 1.3; margin-bottom: -4px; overflow-wrap: anywhere; }
.st-place.pending { color: var(--muted); font-weight: 400; font-style: italic; }
.st-info { color: var(--muted); font-size: 12.5px; font-variant-numeric: tabular-nums; }

.badge {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}
.badge.a { background: var(--a); }
.badge.b { background: var(--b); }

.height-ctl { display: flex; flex-direction: column; gap: 6px; }
.height-ctl .h-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.height-ctl .h-num { display: flex; align-items: center; gap: 4px; }
.height-ctl input[type="number"] { width: 82px; text-align: right; }
.height-ctl .hint { color: var(--muted); font-size: 12px; margin-top: -4px; }
.presets { display: flex; gap: 4px; flex-wrap: wrap; }
.presets button {
  font: inherit;
  font-size: 12px;
  border: 1px solid var(--border);
  background: none;
  color: var(--text);
  border-radius: 999px;
  padding: 2px 9px;
  cursor: pointer;
}
.presets button.on { border-color: var(--accent); color: var(--accent); }

input[type="range"] { width: 100%; accent-color: var(--accent); }

.advanced summary { cursor: pointer; color: var(--muted); }
.advanced[open] { display: flex; flex-direction: column; gap: 8px; }

.status { font-size: 13px; min-height: 1.4em; }
.status:empty { display: none; }
.status.error { color: var(--bad); }

.legend {
  display: grid;
  grid-template-columns: 16px 1fr auto auto;
  column-gap: 8px;
  row-gap: 4px;
  align-items: center;
  font-size: 12.5px;
}
.lg-row { display: contents; }
.lg-area, .lg-pct { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.lg-pct { color: var(--muted); min-width: 3.2em; }
.lg-both .lg-area { color: var(--green-text); font-weight: 700; }
.lg-los .lg-area { color: #ff1493; font-weight: 700; }
.lg-total > * { border-top: 1px solid var(--border); padding-top: 4px; font-weight: 600; }
.lg-note { grid-column: 1 / -1; color: var(--muted); font-size: 11.5px; margin-top: -2px; }
.lg-ring > .sw { margin-top: 4px; }
.export-btn { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; padding: 8px 10px; font-weight: 600; }
.pin-export { display: flex; flex-direction: column; gap: 4px; margin-top: -4px; }
.pin-export-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.pin-btns { display: flex; gap: 4px; }
.pin-btns .btn { padding: 4px 10px; font-size: 12.5px; font-weight: 600; }
.pin-btns .btn:not(:disabled):hover { border-color: var(--accent); color: var(--accent); }
.export-btn:not(:disabled):hover { border-color: var(--accent); color: var(--accent); }
.sw {
  width: 16px;
  height: 12px;
  border-radius: 3px;
  border: 1px solid var(--border);
  flex: 0 0 auto;
}
.sw.ring { border: 2px dashed var(--muted); background: none; }
.sw.edged { border: 2px solid #fff; box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35); }

.profile { display: flex; flex-direction: column; gap: 6px; }
.profile-head { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.profile canvas {
  width: 100%;
  height: 140px;
  background: var(--field);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.verdict { font-size: 13px; }
.verdict .tag { font-weight: 700; }
.verdict.clear .tag { color: var(--good); }
.verdict.marginal .tag { color: var(--warn); }
.verdict.blocked .tag { color: var(--bad); }

.muted { color: var(--muted); font-size: 12.5px; }
.note { color: var(--muted); font-size: 12px; margin: 0; }
.note a { color: var(--accent); }

body:not(.dual) .dual-only { display: none; }

/* ---------- On-map buttons (coverage toggle, crosshair) ---------- */
.map-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 600 13px/1 system-ui, sans-serif;
  color: #16202a;
  background: #fff;
  padding: 7px 10px;
  cursor: pointer;
  margin-left: auto;
}
.leaflet-touch .leaflet-bar.map-btn { border: 2px solid rgba(0, 0, 0, 0.2); background-clip: padding-box; }
.map-btn:hover { background: #f3f5f7; }
.shading-toggle .slash { display: none; }
.shading-toggle.off { color: #8a1450; background: #ffe3f1; }
.shading-toggle.off .slash { display: inline; }
.crosshair-toggle.active { color: #fff; background: #1d6fd1; }
.crosshair-toggle.active:hover { background: #185fb4; }

/* ---------- Crosshair (fixed at the visible map center) ---------- */
.crosshair {
  position: fixed;
  width: 0;
  height: 0;
  z-index: 900; /* above the map, below the panel and controls */
  pointer-events: none;
}
.crosshair .reticle { position: absolute; left: -28px; top: -28px; }
.xh-readout {
  clear: both;
  padding: 8px 8px 8px 11px;
  background: rgba(17, 24, 32, 0.9);
  color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}
.leaflet-touch .leaflet-bar.xh-readout { border: 2px solid rgba(0, 0, 0, 0.2); background-clip: padding-box; }
.xh-readout[hidden] { display: none !important; }
.xh-label { font: 600 11px/1.2 system-ui, sans-serif; color: #b9c4cf; text-transform: uppercase; letter-spacing: 0.4px; margin-bottom: 5px; }
.xh-row { display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.xh-coords { font: 600 14px/1 ui-monospace, "SF Mono", Menlo, Consolas, monospace; user-select: all; -webkit-user-select: all; }
.xh-copy {
  font: 700 13px/1 system-ui, sans-serif;
  border: 0;
  border-radius: 999px;
  padding: 7px 12px;
  min-width: 84px; /* same width for "Copy" and "Copied ✓" */
  background: #ff1493;
  color: #fff;
  cursor: pointer;
}
.xh-copy:hover { background: #e0117f; }
.xh-copy.done { background: #1f9d55; }
.leaflet-container.aiming { cursor: pointer; }

/* ---------- Copy confirmation ---------- */
.toast {
  position: fixed;
  top: 12px;
  left: 50%;
  transform: translate(-50%, -140%);
  z-index: 2000;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100% - 32px);
  padding: 10px 14px;
  border-radius: 10px;
  background: #11251a;
  color: #fff;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  transition: transform 0.25s ease;
  pointer-events: none;
}
.toast.show { transform: translate(-50%, 0); pointer-events: auto; }
.toast.ok { background: #13733f; }
.toast.fail { background: #7a1f1f; }
.toast svg { flex: 0 0 auto; }
.toast-title { font-weight: 700; font-size: 13px; }
.toast-coords { font: 600 15px/1.3 ui-monospace, "SF Mono", Menlo, Consolas, monospace; }
.toast-coords.selectable { user-select: all; -webkit-user-select: all; }

.copy-ping { position: relative; width: 44px; height: 44px; pointer-events: none; }
.copy-ping::before, .copy-ping span {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px #1f9d55;
  animation: copy-ping 1.5s ease-out forwards;
}
.copy-ping span { animation-delay: 0.25s; opacity: 0; }
.copy-ping.fail::before, .copy-ping.fail span { box-shadow: 0 0 0 2px #d23b3b; }
@keyframes copy-ping {
  0% { transform: scale(0.2); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .toast { transition: none; }
  .copy-ping::before, .copy-ping span { animation-duration: 1.5s; animation-name: none; transform: scale(0.8); }
}

/* ---------- Relay sites ---------- */
.relay-box { display: flex; flex-direction: column; gap: 8px; border-top: 1px solid var(--border); padding-top: 10px; }
.relay-intro { margin: -4px 0 0; }
.relay-actions { display: flex; gap: 6px; }
.relay-actions .btn { flex: 1; padding: 8px 10px; font-weight: 600; }
.relay-list { display: flex; flex-direction: column; gap: 6px; }
.relay-opt {
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 8px 10px;
  cursor: pointer;
  font-size: 12.5px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.relay-opt:hover { border-color: #9b30ff; }
.relay-opt.on { border-color: #9b30ff; box-shadow: inset 3px 0 0 #9b30ff; }
.relay-opt.bad { border-style: dashed; }
.ro-head { font-size: 13px; }
.ro-legs { color: var(--muted); line-height: 1.5; }
.ro-coord { display: flex; align-items: center; gap: 6px; }
.ro-coord .mono { flex: 1; }
.ro-copy { padding: 2px 8px; font-size: 12px; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 12px; }
.v { font-weight: 700; }
.v.clear { color: var(--good); }
.v.marginal { color: var(--warn); }
.v.blocked { color: var(--bad); }
.rbadge {
  display: inline-grid;
  place-items: center;
  min-width: 22px;
  height: 20px;
  padding: 0 4px;
  border-radius: 6px;
  background: #9b30ff;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}
.relay-marker {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  transform: rotate(45deg) scale(0.85);
  background: #9b30ff;
  border: 3px solid #fff;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.6);
  opacity: 0.75;
  color: #fff;
  font: 700 12px/24px system-ui, sans-serif;
  text-align: center;
}
.relay-marker.sel { opacity: 1; transform: rotate(45deg) scale(1); }
.relay-marker span { display: block; transform: rotate(-45deg); } /* keep the label upright */
.relay-pop { font-size: 12.5px; line-height: 1.45; }
.relay-pop .btn { margin-top: 6px; padding: 4px 10px; font-size: 12px; }

/* ---------- Station markers ---------- */
.st-marker {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 3px solid #fff;
  color: #fff;
  font: 700 13px/22px system-ui, sans-serif;
  text-align: center;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.6);
}
.st-marker.a { background: var(--a); }
.st-marker.b { background: var(--b); }

/* ---------- Phones: bottom sheet ---------- */
@media (max-width: 700px) {
  .panel {
    top: auto;
    left: 0;
    right: 0;
    bottom: 0;
    width: auto;
    max-height: 58vh;
    border-radius: 14px 14px 0 0;
    border-bottom: 0;
    padding-bottom: env(safe-area-inset-bottom);
  }
  .panel-body { padding: 10px 16px 16px; }
  .panel-head { padding: 8px 16px; }
  .leaflet-bottom { bottom: var(--sheet-h, 0px); }
}
.warn-text { color: var(--warn); }