:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --ink: #1d2330;
  --muted: #667085;
  --line: #e2e5ea;
  --accent: #1f6feb;
  --accent-ink: #ffffff;
  --top: #16202e;
  --top-ink: #e8edf5;
  --wp: #1f6feb;
  --home: #c2410c;
  --incl: #15803d;
  --excl: #dc2626;
  --rally: #7c3aed;
  --warn: #b45309;
  --warn-bg: #fff7e6;
  --err: #b91c1c;
  --err-bg: #fdecec;
  --info-bg: #eef4ff;
  --radius: 8px;
  --side-w: 430px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  color: var(--ink);
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; background: var(--bg); }
body { display: flex; flex-direction: column; }
button, input, select { font: inherit; color: inherit; }

/* ---------- top bar ---------- */
.topbar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 8px 14px; background: var(--top); color: var(--top-ink);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px; }
.brand small { font-weight: 400; opacity: .6; }
.modes { display: flex; background: rgba(255,255,255,.08); border-radius: 8px; padding: 3px; }
.mode {
  border: 0; background: transparent; color: var(--top-ink); padding: 6px 14px;
  border-radius: 6px; cursor: pointer; opacity: .75;
}
.mode.active { background: #fff; color: var(--top); opacity: 1; font-weight: 600; }
.actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.actions button, .actions .btn {
  border: 1px solid rgba(255,255,255,.25); background: transparent; color: var(--top-ink);
  padding: 6px 12px; border-radius: 6px; cursor: pointer;
}
.actions .primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.actions button:hover, .actions .btn:hover { filter: brightness(1.15); }

/* ---------- layout ---------- */
main { flex: 1; display: flex; min-height: 0; }
.map-wrap { position: relative; flex: 1; min-width: 0; }
#map { position: absolute; inset: 0; }
#sidebar {
  width: var(--side-w); flex: none; overflow-y: auto; background: var(--panel);
  border-left: 1px solid var(--line); padding: 12px 14px 40px;
}
@media (max-width: 860px) {
  main { flex-direction: column; }
  .map-wrap { flex: none; height: 55vh; }
  #sidebar { width: auto; border-left: 0; border-top: 1px solid var(--line); }
  .actions { margin-left: 0; }
}

/* ---------- map overlays ---------- */
.map-tools {
  position: absolute; top: 10px; left: 56px; z-index: 500;
  display: flex; gap: 6px; flex-wrap: wrap; max-width: calc(100% - 70px);
}
.tool {
  background: #fff; border: 1px solid #c9ced6; border-radius: 6px; padding: 6px 10px;
  cursor: pointer; box-shadow: 0 1px 3px rgba(0,0,0,.15); white-space: nowrap;
}
.tool.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.tool .sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }
.hint {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); z-index: 500;
  background: rgba(22,32,46,.92); color: #fff; padding: 8px 14px; border-radius: 8px;
  display: flex; gap: 10px; align-items: center; max-width: 92%;
}
.hint[hidden] { display: none; }
.hint button { background: #fff; color: var(--top); border: 0; border-radius: 5px; padding: 4px 10px; cursor: pointer; font-weight: 600; }
.hint button.ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.4); font-weight: 400; }
.cursor-readout {
  position: absolute; right: 8px; bottom: 22px; z-index: 500; font: 12px ui-monospace, Menlo, monospace;
  background: rgba(255,255,255,.85); padding: 2px 6px; border-radius: 4px; pointer-events: none;
}
.map-wrap.tool-on .leaflet-container { cursor: crosshair; }

/* markers */
.wp-icon, .rally-icon, .home-icon {
  display: flex; align-items: center; justify-content: center; border-radius: 50%;
  color: #fff; font-weight: 700; font-size: 12px; border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,.45);
}
.wp-icon { background: var(--wp); }
.wp-icon.special { background: #0e7490; }
.wp-icon.land { background: #a16207; }
.wp-icon.roi { background: #db2777; }
.home-icon { background: var(--home); border-radius: 6px; }
.rally-icon { background: var(--rally); border-radius: 4px; }
.sel .wp-icon, .sel .rally-icon, .sel.wp-icon, .sel.rally-icon { outline: 3px solid #facc15; outline-offset: 1px; }
.dim { opacity: .45; }
.vtx-icon { background: #fff; border: 2px solid var(--incl); border-radius: 2px; }
.vtx-icon.excl { border-color: var(--excl); }
.vtx-icon.first { background: #facc15; }
.mid-icon { background: rgba(255,255,255,.8); border: 1px dashed #555; border-radius: 50%; }
.ret-icon { background: #0f172a; color: #fff; font-weight: 700; font-size: 11px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; border: 2px solid #fff; }
.leg-label { background: transparent; border: 0; box-shadow: none; color: #0f172a; font-size: 11px;
  font-weight: 600; text-shadow: 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff; }

/* ---------- sidebar ---------- */
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; margin-bottom: 12px; background: #fff; }
.card h3 { margin: 0 0 8px; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.card h3 .grow { flex: 1; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
label.f { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--muted); }
label.f input, label.f select, .row input, .row select {
  border: 1px solid #cfd4dc; border-radius: 6px; padding: 5px 7px; background: #fff; color: var(--ink); width: 100%; min-width: 0;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.btns { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.b { border: 1px solid #cfd4dc; background: #fff; border-radius: 6px; padding: 5px 10px; cursor: pointer; }
.b:hover { background: #f3f5f8; }
.b.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.b.danger { color: var(--err); }
.b:disabled { opacity: .45; cursor: default; }
.stats { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; }
.stats b { font-size: 16px; display: block; }
.muted { color: var(--muted); }
.help { font-size: 12px; color: var(--muted); margin: 6px 0 0; line-height: 1.4; }

.list { display: flex; flex-direction: column; gap: 2px; }
.row {
  display: grid; align-items: center; gap: 6px; padding: 4px 6px; border-radius: 6px; cursor: pointer;
  border: 1px solid transparent;
}
.row:hover { background: #f5f7fa; }
.row.selected { background: #eef4ff; border-color: #bcd2ff; }
.row.mission-row { grid-template-columns: 22px 1fr 60px 56px 28px; }
.row.rally-row { grid-template-columns: 26px 1fr 1fr 64px auto; }
.row.shape-row { grid-template-columns: 14px 1fr auto; }
.row .idx { font-weight: 700; text-align: center; color: var(--muted); }
.row .dist { font-size: 12px; color: var(--muted); text-align: right; }
.row-actions { display: flex; gap: 2px; }
.row-actions button { border: 0; background: transparent; cursor: pointer; padding: 2px 5px; border-radius: 4px; color: var(--muted); }
.row-actions button:hover { background: #e7eaef; color: var(--ink); }
.list-head { font-size: 11px; color: var(--muted); text-transform: uppercase; padding: 0 6px 2px; }
.swatch { width: 12px; height: 12px; border-radius: 3px; }
.empty { color: var(--muted); font-style: italic; padding: 6px; }

.checks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.checks li { padding: 6px 8px; border-radius: 6px; font-size: 12.5px; line-height: 1.35; }
.checks li.error { background: var(--err-bg); color: var(--err); }
.checks li.warn { background: var(--warn-bg); color: var(--warn); }
.checks li.info { background: var(--info-bg); color: #1e40af; }
.checks li.ok { background: #ecfdf3; color: #067647; }

/* ---------- dialog ---------- */
dialog { border: 0; border-radius: 12px; padding: 0; width: min(760px, 94vw); box-shadow: 0 20px 60px rgba(0,0,0,.35); }
dialog::backdrop { background: rgba(10,15,25,.45); }
.dlg-head { display: flex; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.dlg-head h2 { margin: 0; font-size: 17px; flex: 1; }
.icon { border: 0; background: transparent; font-size: 16px; cursor: pointer; }
#export-body { padding: 14px 18px 18px; }
.exp { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin-bottom: 10px; }
.exp-top { display: flex; align-items: center; gap: 10px; }
.exp-top .name { flex: 1; }
.exp-top code { font-size: 12px; color: var(--muted); }
.exp pre { max-height: 180px; overflow: auto; background: #0f172a; color: #e2e8f0; padding: 8px; border-radius: 6px; font-size: 11px; margin: 8px 0 0; }
.exp details summary { cursor: pointer; font-size: 12px; color: var(--muted); margin-top: 6px; }
.howto { font-size: 13px; background: var(--info-bg); border-radius: 8px; padding: 10px 12px; line-height: 1.5; }
.howto ol { margin: 4px 0 0; padding-left: 20px; }

.toast {
  position: fixed; left: 50%; top: 64px; transform: translateX(-50%); z-index: 2000;
  background: #16202e; color: #fff; padding: 8px 14px; border-radius: 8px; opacity: 0; pointer-events: none;
  transition: opacity .2s;
}
.toast.show { opacity: 1; }
.toast.err { background: var(--err); }

/* ---------- tutorial ---------- */
.tour-dim { position: fixed; inset: 0; z-index: 3000; background: rgba(10,15,25,.45); }
.tour-ring {
  position: fixed; z-index: 3001; pointer-events: none; border-radius: 8px;
  box-shadow: 0 0 0 3px #facc15, 0 0 0 9999px rgba(10,15,25,.35);
  transition: left .15s, top .15s, width .15s, height .15s;
}
.tour-dim[hidden], .tour-ring[hidden], .tour-card[hidden], .tour-welcome[hidden] { display: none; }
.tour-card {
  position: fixed; z-index: 3002; width: min(340px, calc(100vw - 24px));
  background: #fff; color: var(--ink); border-radius: 10px; padding: 12px 14px 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,.4);
}
.tour-head { display: flex; align-items: center; justify-content: space-between; }
.tour-step { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.tour-x { border: 0; background: transparent; cursor: pointer; font-size: 15px; color: var(--muted); padding: 2px 6px; border-radius: 4px; }
.tour-x:hover { background: #eceff3; color: var(--ink); }
.tour-card h3 { margin: 4px 0 6px; font-size: 16px; }
.tour-card p { margin: 0 0 8px; line-height: 1.45; }
.tour-done { color: #067647; font-weight: 600; }
.tour-btns { display: flex; align-items: center; gap: 6px; margin-top: 6px; }
.tour-btns .grow { flex: 1; }
.tour-btns .ghost { border-color: transparent; color: var(--muted); background: transparent; }
.tour-btns .ghost:hover { background: #f3f5f8; color: var(--ink); }
.tour-welcome {
  position: fixed; right: 16px; bottom: 16px; z-index: 2500; max-width: 320px;
  background: #fff; border-radius: 10px; padding: 12px 14px; box-shadow: 0 10px 40px rgba(0,0,0,.35);
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center; line-height: 1.4;
}

/* ---------- info button ---------- */
.actions .info-btn { padding: 6px 9px; border-radius: 50%; line-height: 1; font-size: 16px; }
.info-pop {
  position: fixed; top: 52px; right: 14px; z-index: 2600; max-width: 300px;
  background: #fff; color: var(--ink); border-radius: 10px; padding: 12px 14px;
  box-shadow: 0 10px 40px rgba(0,0,0,.35); line-height: 1.45;
}
.info-pop[hidden] { display: none; }
.info-pop a { color: var(--accent); word-break: break-all; }

.vtx-icon.survey { border-color: #06b6d4; }
.vtx-icon.survey.first { background: #facc15; }
.wp-icon.small { font-size: 10px; border-width: 1.5px; }

/* collapsible card header */
.card-toggle {
  flex: 1; display: flex; align-items: center; gap: 6px; text-align: left; cursor: pointer;
  border: 0; background: transparent; padding: 0; font: inherit; color: inherit;
  text-transform: inherit; letter-spacing: inherit;
}
.card-toggle:hover { color: var(--ink); }
.card-toggle .chev { width: 12px; display: inline-block; }
.card.collapsed h3 { margin-bottom: 4px; }

/* ---------- terrain check ---------- */
#terrain-body { padding: 14px 18px 18px; }
.err-box { display: block; background: var(--err-bg); color: var(--err); padding: 8px 10px; border-radius: 6px; }
.tp-banner { border-radius: 8px; padding: 8px 12px; margin: 10px 0; font-size: 13px; line-height: 1.45; }
.tp-banner.ok { background: #ecfdf3; color: #067647; }
.tp-banner.bad { background: var(--err-bg); color: var(--err); }
.tp-banner ul { margin: 4px 0 4px; padding-left: 18px; }
.tp-chart { width: 100%; height: auto; display: block; background: #f8fafc; border: 1px solid var(--line); border-radius: 8px; }
.tp-ground { fill: #cdbf9f; stroke: #8b7b5e; stroke-width: 1; }
.tp-flight { fill: none; stroke: var(--wp); stroke-width: 2; }
.tp-min { fill: none; stroke: #dc2626; stroke-width: 1; stroke-dasharray: 4 3; opacity: .7; }
.tp-bad { fill: #dc2626; stroke: #dc2626; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
path.tp-high { fill: none; }
.tp-high { stroke: #d97706; stroke-width: 4; fill: #d97706; }
path.tp-bad { fill: none; }
.tp-wp { fill: #fff; stroke: var(--wp); stroke-width: 1.5; }
.tp-wp.low, .tp-wp.under { stroke: #dc2626; fill: #fecaca; }
.tp-wp.high { stroke: #d97706; fill: #fde68a; }
.tp-n { font-size: 9px; fill: #334155; }
.tp-ax { font-size: 10px; fill: var(--muted); }
.tp-legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 11.5px; color: var(--muted); margin: 6px 0 0; }
.tp-legend .lg { display: inline-block; width: 14px; height: 0; border-top: 2px solid; margin-right: 5px; vertical-align: middle; }
.lg-flight { border-color: var(--wp); }
.lg-ground { border-color: #8b7b5e; border-top-width: 6px !important; }
.lg-min { border-color: #dc2626; border-top-style: dashed; }
.lg-bad { border-color: #dc2626; border-top-width: 4px !important; }
.tp-table { max-height: 260px; overflow: auto; margin-top: 10px; border: 1px solid var(--line); border-radius: 8px; }
.tp-table table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.tp-table th { position: sticky; top: 0; background: #f3f5f8; text-align: left; padding: 6px 8px; font-weight: 600; }
.tp-table td { padding: 4px 8px; border-top: 1px solid var(--line); }
.tp-table tr.low td, .tp-table tr.under td { background: var(--err-bg); color: var(--err); }
.tp-table tr.high td { background: var(--warn-bg); color: var(--warn); }

.actions a.btn { text-decoration: none; display: inline-flex; align-items: center; }