:root {
  --bg: #f7f7f5;
  --panel: #ffffff;
  --text: #1d1d1b;
  --muted: #6b6b66;
  --border: #dddcd6;
  --accent: #1f5fa8;
  --warn: #b3261e;
  --ok: #2e7d32;
  --c-ensisijainen: #d9480f;
  --c-paakaupunki: #5f3dc4;
  --c-suurkaupunki: #1971c2;
  --c-vaihtopaikka: #868e96;
  --leg-short: #2f9e44;
  --leg-mid: #f2b705;
  --leg-long: #e03131;
  --leg-unknown: #868e96;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161615;
    --panel: #20201e;
    --text: #ecebe6;
    --muted: #a3a29b;
    --border: #3a3a36;
    --accent: #6ea8fe;
    --warn: #ff8a80;
    --ok: #81c784;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
}
h1 { font-size: 18px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 8px; }

#tabs { display: flex; gap: 4px; }
#tabs button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
}
#tabs button.active { background: var(--accent); color: #fff; border-color: var(--accent); }

main { flex: 1; display: flex; min-height: 0; }
#kartta { flex: 1; position: relative; display: block; }
#map { position: absolute; inset: 0; }
#side {
  width: 420px;
  overflow-y: auto;
  padding: 12px 16px;
  border-left: 1px solid var(--border);
  background: var(--panel);
}
#side .pane { display: none; }
#side .pane.active { display: block; }

#legend {
  position: absolute;
  bottom: 24px; left: 8px;
  z-index: 500;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
  max-width: 220px;
}
#legend details { margin: 0; }
#legend summary { margin: 0; font-weight: 600; }
#legend .sw { display: inline-block; width: 22px; height: 0; vertical-align: middle; margin-right: 6px; border-top: 3px solid; }
#legend .dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }

label { display: block; margin: 6px 0; }
label.check { display: flex; gap: 6px; align-items: center; }
input[type=range] { width: 100%; }
fieldset { border: 1px solid var(--border); border-radius: 6px; margin: 8px 0; }
details { margin-bottom: 12px; }
summary { cursor: pointer; font-weight: 600; margin-bottom: 6px; }

button, input, select {
  font: inherit;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
}
button { cursor: pointer; }
.row { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.row input { flex: 1; min-width: 120px; }

#tree ul { list-style: none; padding-left: 14px; margin: 0; border-left: 1px dotted var(--border); }
#tree > ul { padding-left: 0; border-left: none; }
#tree li { margin: 2px 0; }
#tree .node { display: flex; gap: 6px; align-items: baseline; flex-wrap: wrap; }
#tree .meta { color: var(--muted); font-size: 12px; }
#tree .toggle { width: 22px; padding: 0; border: none; background: none; }
#tree .use { font-size: 12px; padding: 0 6px; }

#route { padding-left: 20px; }
#route li { margin: 6px 0; }
#route .leg { font-size: 12px; color: var(--muted); }
#route .stop { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
#route input[type=number] { width: 56px; }

table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { border-bottom: 1px solid var(--border); padding: 4px 6px; text-align: left; vertical-align: top; }
.warn { color: var(--warn); }
.ok { color: var(--ok); }
.muted { color: var(--muted); }
.cat { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }

.leaflet-popup-content { font-size: 13px; }
.leaflet-popup-content table { font-size: 12px; }

@media (max-width: 760px) {
  main { flex-direction: column; }
  #side { width: 100%; border-left: none; flex: 1; }
  #kartta { display: none; }
  #kartta.active { display: block; flex: 1; }
  body.tab-kartta #side { display: none; }
  #legend { bottom: 16px; }
}