* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", Helvetica, Arial, sans-serif;
  color: #24292f;
  background: #f6f8fa;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
}

a { color: #0969da; }

.topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  padding-top: max(0.6rem, env(safe-area-inset-top));
  background: #24292f;
  color: #fff;
}
.home-link {
  color: #fff;
  text-decoration: none;
  font-size: 1.25rem;
  line-height: 1;
  padding: 0.25rem 0.4rem;
  border-radius: 6px;
}
.home-link:hover { background: rgba(255, 255, 255, 0.12); }
.title h1 { font-size: 1.05rem; font-weight: 600; }
.title p { font-size: 0.78rem; color: #8b949e; }

.layout {
  flex: 1;
  display: flex;
  flex-direction: column;
}

#map {
  flex-shrink: 0;
  height: 62vh;
  height: 62dvh;
  min-height: 320px;
  background: #e8ecef;
}

.panel {
  padding: 0.75rem 1rem 1.5rem;
  padding-bottom: max(1.5rem, env(safe-area-inset-bottom));
}

.panel-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.9rem;
  margin-bottom: 0.75rem;
}
.chip {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.3rem 0.8rem;
  border: 1px solid #d0d7de;
  border-radius: 999px;
  background: #fff;
  color: #24292f;
  cursor: pointer;
}
.chip:hover { border-color: #0969da; }
.chip.is-active { background: #24292f; border-color: #24292f; color: #fff; }
.toggle { font-size: 0.85rem; display: inline-flex; align-items: center; gap: 0.3rem; cursor: pointer; }

.legs { list-style: none; display: grid; gap: 0.5rem; }
.leg {
  background: #fff;
  border: 1px solid #d0d7de;
  border-left: 5px solid var(--leg-color);
  border-radius: 6px;
}
.leg.is-selected { border-color: var(--leg-color); box-shadow: 0 0 0 1px var(--leg-color); }
.leg-head {
  width: 100%;
  font: inherit;
  text-align: left;
  background: none;
  border: 0;
  padding: 0.6rem 0.8rem;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: baseline;
  gap: 0.1rem 0.5rem;
  color: inherit;
}
.leg-name { font-weight: 700; color: var(--leg-color); }
.leg-km { font-weight: 600; }
.leg-route { grid-column: 1 / -1; font-size: 0.85rem; color: #57606a; }
.leg-detail { display: none; padding: 0 0.8rem 0.7rem; font-size: 0.85rem; }
.leg.is-selected .leg-detail { display: block; }
.checkpoints { list-style: none; margin-top: 0.4rem; border-top: 1px solid #eaeef2; }
.checkpoints li {
  display: grid;
  grid-template-columns: 3.6rem 1fr auto;
  gap: 0.5rem;
  padding: 0.3rem 0;
  border-bottom: 1px solid #eaeef2;
}
.cp-km { font-variant-numeric: tabular-nums; font-weight: 600; }
.cp-total { color: #8b949e; font-variant-numeric: tabular-nums; }

.here {
  margin-bottom: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-left: 4px solid #0969da;
  border-radius: 6px;
  background: #ddf4ff;
  font-size: 0.85rem;
}
.here:empty { display: none; }

.help { margin-top: 1rem; font-size: 0.85rem; background: #fff; border: 1px solid #d0d7de; border-radius: 6px; }
.help summary { padding: 0.5rem 0.8rem; cursor: pointer; font-weight: 600; }
.help > p, .help h3, .help ol { margin: 0 0.8rem 0.6rem; }
.help h3 { font-size: 0.85rem; margin-top: 0.8rem; }
.help ol { padding-left: 1.2rem; display: grid; gap: 0.25rem; }
.help .download {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  background: #0969da;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.muted { color: #656d76; }
.status { margin-top: 0.75rem; font-size: 0.85rem; color: #cf222e; }
.status:empty { display: none; }

.notes { margin-top: 1rem; font-size: 0.75rem; color: #656d76; display: grid; gap: 0.4rem; }

/* 地図上の印 */
.station span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #24292f;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}
.station-start span { background: #1a7f37; }
.station-finish span { background: #cf222e; }

.km-mark span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid;
  font-size: 0.65rem;
  font-weight: 700;
  line-height: 1;
}

.leaflet-popup-content { font-size: 0.85rem; line-height: 1.5; }
.gmap-links { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.5rem; }
.leaflet-popup-content .gmap-links a {
  padding: 0.25rem 0.6rem;
  border: 1px solid #d0d7de;
  border-radius: 999px;
  color: #0969da;
  text-decoration: none;
  white-space: nowrap;
}
.leaflet-popup-content .gmap-links a:hover { border-color: #0969da; }

@media (min-width: 900px) {
  body { height: 100vh; height: 100dvh; overflow: hidden; }
  .layout { flex-direction: row; min-height: 0; }
  #map { flex: 1; height: auto; min-height: 0; }
  .panel { width: 380px; overflow-y: auto; border-left: 1px solid #d0d7de; }
}

/* 地図の上のボタン（全画面・現在地） */
.map-buttons button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid #ccc;
  background: #fff;
  color: #24292f;
  cursor: pointer;
}
.map-buttons button:last-child { border-bottom: 0; border-radius: 0 0 2px 2px; }
.map-buttons button:first-child { border-radius: 2px 2px 0 0; }
.map-buttons button:hover { background: #f4f4f4; }
.map-buttons button.is-active { background: #0969da; color: #fff; }

/* 全画面のときだけ出す凡例と現在地の文 */
.map-legend,
.map-here {
  display: none;
  position: absolute;
  z-index: 800;
  background: rgba(255, 255, 255, 0.94);
  border-radius: 6px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}
.map-legend {
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  gap: 0.5rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}
.map-legend span { color: var(--leg-color); display: inline-flex; align-items: center; gap: 0.2rem; }
.map-legend span::before {
  content: "";
  width: 12px;
  height: 4px;
  border-radius: 2px;
  background: var(--leg-color);
}
.map-here {
  left: 10px;
  right: 10px;
  bottom: calc(28px + env(safe-area-inset-bottom));
  max-width: 480px;
  padding: 0.4rem 0.6rem;
  border-left: 4px solid #0969da;
  font-size: 0.8rem;
  line-height: 1.45;
}

body.map-full { overflow: hidden; }
body.map-full .topbar,
body.map-full .panel { display: none; }
body.map-full #map {
  position: fixed;
  inset: 0;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  z-index: 1000;
}
body.map-full .map-legend { display: flex; }
body.map-full .map-here:not(:empty) { display: block; }