:root {
  --clean: #dc2626;
  --clean-tint: #fef2f2;
  --clear: #16a34a;
  --clear-tint: #f0fdf4;
  --none: #9ca3af;
  --sign: #7c3aed;
  --ink: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --panel: #ffffff;
  --chip: #f3f4f6;
  --accent: #1d4ed8;
  --radius: 14px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; background: #f8fafc; }
#map { position: fixed; inset: 0; }
a { color: var(--accent); }
.muted { color: var(--muted); font-weight: 400; }

/* Panel */
.panel {
  position: absolute;
  top: 12px;
  left: 12px;
  width: 352px;
  max-height: calc(100% - 24px);
  overflow: auto;
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: 0 6px 28px rgba(15, 23, 42, 0.18);
  padding: 14px 16px 12px;
  z-index: 2;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
h1 { font-size: 17px; margin: 0; letter-spacing: -0.01em; }
.link-btn { background: none; border: 0; color: var(--accent); font: inherit; font-size: 13px; cursor: pointer; padding: 2px 0; }
.panel.collapsed .panel-body { display: none; }
.panel.collapsed .panel-head { margin-bottom: 0; }
.panel-body { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
.panel { overflow-x: hidden; }

/* Mode switch */
.modes { display: grid; grid-template-columns: 1fr 1fr; background: var(--chip); border-radius: 10px; padding: 3px; }
.mode-btn { border: 0; background: transparent; font: inherit; font-size: 13.5px; padding: 7px 8px; border-radius: 8px; cursor: pointer; color: var(--muted); }
.mode-btn[aria-pressed="true"] { background: #fff; color: var(--ink); font-weight: 600; box-shadow: 0 1px 3px rgba(15, 23, 42, 0.15); }

/* Chips */
.chip {
  position: relative;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 10px;
  padding: 6px 10px;
  font: inherit;
  font-size: 13px;
  line-height: 1.15;
  cursor: pointer;
  text-align: center;
}
.chip:hover { border-color: #cbd5e1; }
.chip[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.chip small { display: block; font-size: 11px; opacity: 0.7; margin-top: 1px; }
.chip.holiday small { color: var(--clear); opacity: 1; font-weight: 600; }
.chip.holiday[aria-pressed="true"] small { color: #86efac; }
.chip-sm { padding: 5px 9px; font-size: 12.5px; border-radius: 999px; }

/* Day picker: the next seven days plus "More", in two rows */
.days { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
.days .chip { padding: 6px 4px; }
.date-chip { display: flex; flex-direction: column; justify-content: center; align-items: center; }
.date-chip svg { width: 15px; height: 15px; }
.date-chip input, .field input {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; border: 0; padding: 0; margin: 0; cursor: pointer; font-size: 16px;
}

/* Trip fields: readable text over the native picker */
.trip { display: grid; gap: 8px; }
.trip-row { display: grid; grid-template-columns: 40px 1fr 104px; align-items: center; gap: 6px; }
.trip-label { font-size: 13px; font-weight: 600; color: var(--muted); }
.field {
  position: relative;
  display: flex;
  align-items: center;
  height: 38px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}
.field:hover { border-color: #cbd5e1; }
.field:focus-within { border-color: var(--ink); box-shadow: 0 0 0 3px rgba(17, 24, 39, 0.08); }
.field.invalid { border-color: var(--clean); color: var(--clean); }
.durations { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; padding-left: 46px; }
.durations .chip { padding: 5px 2px; }
.trip-length { font-size: 12.5px; color: var(--muted); margin: 0; padding-left: 46px; }
.trip-length.error { color: var(--clean); font-weight: 600; }

/* Banners */
.banner {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 13px;
}
.banner.warn { background: #fffbeb; border-color: #fde68a; color: #78350f; }
.banner.error { background: #fef2f2; border-color: #fecaca; color: #991b1b; }

/* Results: the two counts double as the map legend */
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.stat { display: grid; gap: 1px; padding: 8px 10px 8px 12px; border-radius: 10px; position: relative; overflow: hidden; }
.stat::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; }
.stat.clean { background: var(--clean-tint); }
.stat.clean::before { background: var(--clean); }
.stat.clear { background: var(--clear-tint); }
.stat.clear::before { background: var(--clear); }
.stat-num { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; line-height: 1.15; }
.stat.clean .stat-num { color: #b91c1c; }
.stat.clear .stat-num { color: #15803d; }
.stat-label { font-size: 12px; color: #374151; line-height: 1.3; }
.hint { font-size: 12px; color: var(--muted); margin: -4px 0 0; line-height: 1.4; }
.hint .sw-gray { display: inline-block; width: 14px; height: 4px; border-radius: 2px; background: var(--none); vertical-align: middle; margin-right: 3px; }

.signs-toggle { display: flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; }
.signs-toggle + .signs-toggle { margin-top: -6px; }
.arrow-key { width: 16px; height: 12px; flex: 0 0 auto; }
.signs-toggle input { margin: 0; accent-color: var(--sign); }
.sw-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--sign); border: 2px solid #fff; box-shadow: 0 0 0 1px var(--sign); flex: 0 0 auto; }

.about { font-size: 12.5px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 10px; }
.about summary { cursor: pointer; color: var(--ink); font-size: 13px; }
.about ul { padding-left: 18px; margin: 6px 0 0; display: grid; gap: 4px; }
.fine { font-size: 12px; color: var(--muted); margin: -4px 0 0; }

/* Popups */
.maplibregl-popup-content { border-radius: 12px; padding: 11px 13px; font-size: 13px; line-height: 1.4; max-width: 280px; box-shadow: 0 6px 24px rgba(15, 23, 42, 0.18); }
.pop h3 { font-size: 14px; margin: 0 0 2px; }
.pop .block { color: var(--muted); margin: 0 0 6px; }
.pop .row { margin: 2px 0; }
.pop .tag { display: inline-block; font-size: 11px; font-weight: 600; padding: 2px 7px; border-radius: 5px; color: #fff; margin-bottom: 5px; }
.pop .tag.clean { background: var(--clean); }
.pop .tag.clear { background: var(--clear); }
.pop .tag.none { background: var(--none); }
.pop .tag.sign { background: var(--sign); }
.pop .warn { background: #fffbeb; border: 1px solid #fde68a; border-radius: 6px; padding: 5px 7px; margin-top: 6px; color: #78350f; }
.pop .src { color: var(--muted); font-size: 11.5px; margin-top: 6px; }

/* Phones: the panel becomes a bottom sheet */
@media (max-width: 640px) {
  .panel {
    top: auto;
    bottom: calc(8px + env(safe-area-inset-bottom));
    left: 8px;
    right: 8px;
    width: auto;
    max-height: 52vh;
    padding: 12px 14px 10px;
  }
  .panel-body { gap: 10px; }
  h1 { font-size: 16px; }
  .panel-head { margin-bottom: 10px; }
  .stat-num { font-size: 20px; }
}