:root {
  --bg:              #f5f0e6;
  --bg-panel:        #eee7d7;
  --admin:           #cbc4b6;
  --admin-fill:      #f0e9d9;
  --water:           #c7d4d9;
  --water-line:      #a7bcc3;
  --parks:           #d9dfc8;
  --streets:         #d4cfc2;
  --hauptweg:        #7b7366;
  --hauptweg-walked: #b87333;
  --hauptweg-hover:  #3e3a33;
  --selected:        #2a2824;
  --text:            #2a2824;
  --text-muted:      #7a7366;
  --panel-border:    #d8cfbd;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.4;
  overflow: hidden;
}

body {
  display: grid;
  grid-template-columns: 1fr 340px;
  grid-template-rows: 1fr;
  height: 100vh;
  overscroll-behavior: none;
  touch-action: manipulation;
}

/* Мобильный layout: карта сверху во весь экран, панель снизу как bottom-sheet. */
@media (max-width: 720px) {
  body {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto;
  }
  #panel {
    max-height: 50vh;
    border-left: none;
    border-top: 1px solid var(--panel-border);
    transition: max-height 220ms ease;
  }
  #panel.is-collapsed {
    max-height: 56px; /* только header + кнопка */
    overflow: hidden;
  }
  #panel-toggle {
    display: block;
    position: absolute;
    top: 4px;
    right: 50%;
    transform: translateX(50%);
    width: 48px;
    height: 6px;
    border: none;
    border-radius: 3px;
    background: var(--panel-border);
    cursor: pointer;
    padding: 0;
    z-index: 2;
  }
  .sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0);
    white-space: nowrap; border: 0;
  }
  #panel { position: relative; padding-top: 14px; }
  /* На мобилке отключаем hover-подсветку — это тач-устройство */
  .layer-hauptwege g.edge.is-hover path.visible {
    stroke: var(--hauptweg);
    stroke-width: 1.8;
  }
  .layer-hauptwege path.visible.walked { stroke-width: 2.4; }
  #tooltip { display: none !important; }
  /* Усилим основные линии, но streets и water-lines сделаем тоньше —
     на маленьком экране они дают слишком много шума. */
  .layer-streets path     { stroke-width: 0.7; opacity: 0.35; }
  .layer-water-lines path { stroke-width: 0.7; opacity: 0.5; }
  .layer-hauptwege path.visible { stroke-width: 2.2; }
  .layer-hauptwege path.visible.walked { stroke-width: 3.0; }
  /* Hit-область шире для касаний пальцем */
  .layer-hauptwege path.hit { stroke-width: 14; }
}

#panel-toggle { display: none; }

/* --- Карта --------------------------------------------------------------- */

#map-region {
  position: relative;
  background: var(--bg);
  overflow: hidden;
}

#map {
  display: block;
  width: 100%;
  height: 100%;
}

#map path, #map polygon { vector-effect: non-scaling-stroke; }

/* Фоновые слои — один объединённый <path> на слой (см. render.js).
   Заливки без обводки, линии без заливки. */
.layer-admin  { fill: var(--admin-fill); stroke: var(--admin); stroke-width: 1.5; }
.layer-water path  { fill: var(--water); stroke: none; }
.layer-parks path  { fill: var(--parks); stroke: none; }
.layer-streets path { fill: none; stroke: var(--streets); stroke-width: 1.2; opacity: 0.55; stroke-linejoin: round; }
.layer-water-lines path { fill: none; stroke: var(--water-line); stroke-width: 1; opacity: 0.7; stroke-linejoin: round; }

/* --- Hauptwege ----------------------------------------------------------- */

.layer-hauptwege path.visible {
  fill: none;
  stroke: var(--hauptweg);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  /* transition убран — 6k+ path'ей с transition'ом тормозят paint. */
}
.layer-hauptwege path.visible.walked {
  stroke: var(--hauptweg-walked);
  stroke-width: 2.4;
}
/* Хит-область — невидима, но ловит клики и hover */
.layer-hauptwege path.hit {
  fill: none;
  stroke: transparent;
  stroke-width: 8;
  stroke-linecap: round;
  pointer-events: stroke;
  cursor: pointer;
}

/* Hover — усиление визуальной линии */
.layer-hauptwege g.edge.is-hover path.visible {
  stroke: var(--hauptweg-hover);
  stroke-width: 3.2;
}

/* Подсветка пути, выбранного в панели */
[data-selected-hauptweg] .layer-hauptwege path.visible { opacity: 0.25; }
[data-selected-hauptweg="1"]  .layer-hauptwege path.visible[data-hauptwege~="1"],
[data-selected-hauptweg="2"]  .layer-hauptwege path.visible[data-hauptwege~="2"],
[data-selected-hauptweg="3"]  .layer-hauptwege path.visible[data-hauptwege~="3"],
[data-selected-hauptweg="4"]  .layer-hauptwege path.visible[data-hauptwege~="4"],
[data-selected-hauptweg="5"]  .layer-hauptwege path.visible[data-hauptwege~="5"],
[data-selected-hauptweg="6"]  .layer-hauptwege path.visible[data-hauptwege~="6"],
[data-selected-hauptweg="7"]  .layer-hauptwege path.visible[data-hauptwege~="7"],
[data-selected-hauptweg="8"]  .layer-hauptwege path.visible[data-hauptwege~="8"],
[data-selected-hauptweg="9"]  .layer-hauptwege path.visible[data-hauptwege~="9"],
[data-selected-hauptweg="10"] .layer-hauptwege path.visible[data-hauptwege~="10"],
[data-selected-hauptweg="11"] .layer-hauptwege path.visible[data-hauptwege~="11"],
[data-selected-hauptweg="12"] .layer-hauptwege path.visible[data-hauptwege~="12"],
[data-selected-hauptweg="13"] .layer-hauptwege path.visible[data-hauptwege~="13"],
[data-selected-hauptweg="14"] .layer-hauptwege path.visible[data-hauptwege~="14"],
[data-selected-hauptweg="15"] .layer-hauptwege path.visible[data-hauptwege~="15"],
[data-selected-hauptweg="16"] .layer-hauptwege path.visible[data-hauptwege~="16"],
[data-selected-hauptweg="17"] .layer-hauptwege path.visible[data-hauptwege~="17"],
[data-selected-hauptweg="18"] .layer-hauptwege path.visible[data-hauptwege~="18"],
[data-selected-hauptweg="19"] .layer-hauptwege path.visible[data-hauptwege~="19"],
[data-selected-hauptweg="20"] .layer-hauptwege path.visible[data-hauptwege~="20"] {
  opacity: 1;
  stroke: var(--selected);
  stroke-width: 3;
}

/* --- Tooltip ------------------------------------------------------------- */

#tooltip {
  position: absolute;
  padding: 4px 8px;
  background: rgba(42, 40, 36, 0.92);
  color: #f5f0e6;
  font-size: 12px;
  border-radius: 4px;
  pointer-events: none;
  white-space: nowrap;
  z-index: 10;
  transform: translate(8px, 8px);
}

#loading {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-muted);
  font-size: 13px;
}

/* --- Панель -------------------------------------------------------------- */

#panel {
  background: var(--bg-panel);
  border-left: 1px solid var(--panel-border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.panel-header {
  padding: 18px 16px 14px;
  border-bottom: 1px solid var(--panel-border);
}

.panel-header h1 {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--text);
}

.progress-block .progress-bar {
  height: 6px;
  background: #e0d7c2;
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 4px;
}
.progress-block .progress-fill {
  height: 100%;
  background: var(--hauptweg-walked);
  width: 0;
  transition: width 120ms ease;
}
.progress-block .progress-label {
  font-size: 12px;
  color: var(--text-muted);
}
.progress-total .progress-label {
  font-size: 13px;
  color: var(--text);
}

.weg-list {
  list-style: none;
  padding: 4px 0;
  margin: 0;
  flex: 1;
}

.weg-item {
  padding: 8px 16px;
  border-bottom: 1px solid rgba(216, 207, 189, 0.6);
  cursor: pointer;
  user-select: none;
}
.weg-item:hover { background: rgba(255, 255, 255, 0.4); }
.weg-item.is-selected { background: rgba(184, 115, 51, 0.1); }

.weg-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}
.weg-num {
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  font-size: 11px;
  min-width: 22px;
}
.weg-name {
  flex: 1;
  font-weight: 500;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.weg-km {
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--text-muted);
}
.weg-item .progress-bar {
  height: 3px;
  background: #e0d7c2;
  border-radius: 2px;
  overflow: hidden;
}
.weg-item .progress-fill {
  height: 100%;
  background: var(--hauptweg-walked);
  width: 0;
}

.panel-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--panel-border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.panel-footer button,
.panel-footer .button-like {
  font: inherit;
  padding: 6px 10px;
  background: var(--bg);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
}
.panel-footer button:hover,
.panel-footer .button-like:hover { background: #fff; }
.panel-footer .button-quiet {
  color: var(--text-muted);
  margin-left: auto;
  background: transparent;
  border-color: transparent;
}