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

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface2: #21262d;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #7d8590;
  --green: #00c853;
  --amber: #f59e0b;
  --red: #ef4444;
  --blue: #3b9eff;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

/* ── Options panel ──────────────────────────────── */
#options-panel {
  position: fixed;
  top: 0;
  bottom: 0;
  right: -100%;
  width: min(300px, 85vw);
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -8px 0 32px rgba(0,0,0,.5);
  transition: right .25s ease;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}
#options-panel.open { right: 0; }

#options-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

#options-brand { display: flex; align-items: center; gap: 10px; }
#options-brand img { border-radius: 8px; }
#options-app { font-weight: 700; letter-spacing: .02em; }
#options-title { font-size: .8em; font-weight: 500; color: var(--muted); }

#options-close {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.1em;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
  line-height: 1;
}
#options-close:active { background: var(--surface2); }

.setting-row[hidden] { display: none; }
.setting-row {
  display: flex;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  gap: 12px;
  user-select: none;
  min-height: 56px;
}
.setting-label { flex: 1; font-size: .95em; }
.setting-hint { padding: 8px 16px 4px; font-size: .8em; color: var(--muted); }

/* Toggle switch */
.toggle-input { display: none; }
.toggle-track {
  flex-shrink: 0;
  width: 44px;
  height: 24px;
  background: var(--border);
  border-radius: 12px;
  position: relative;
  transition: background .2s;
}
.toggle-track::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  transition: transform .2s;
}
.toggle-input:checked + .toggle-track { background: var(--green); }
.toggle-input:checked + .toggle-track::after { transform: translateX(20px); }

#csv-debug-section {
  padding: 4px 16px 12px;
  border-bottom: 1px solid var(--border);
}
#csv-debug-section input[type="file"] { width: 100%; font-size: .85em; color: var(--muted); }
#csvStatus { font-size: .8em; margin-top: 4px; color: var(--green); }

/* Cursore della simulazione: sotto l'HUD, a sinistra della barra distanze verticale */
#sim-cursore[hidden] { display: none; }
#sim-cursore {
  position: absolute;
  top: 64px;
  left: 10px;
  right: 84px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: rgba(13,17,23,.8);
  border: 1px solid var(--border);
  border-radius: 10px;
}
#simSlider { flex: 1; min-width: 0; accent-color: var(--green); }
#simTempo { font-size: .75em; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ── Map wrapper ────────────────────────────────── */
#map-wrapper {
  flex: 1;
  position: relative;
  overflow: hidden;
  min-height: 0;
}

/* fallback per browser che non supportano 100dvh */
@supports not (height: 100dvh) {
  body { height: 100vh; }
}

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

/* HUD overlay – top */
#hud-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 14px 36px;
  background: linear-gradient(to bottom,
    rgba(0,0,0,.75) 0%,
    rgba(0,0,0,.35) 60%,
    transparent 100%);
  pointer-events: none;
}
#hud-top > * { pointer-events: auto; }

#strada {
  flex: 1;
  font-size: 1em;
  font-weight: 600;
  color: white;
  text-shadow: 0 1px 4px rgba(0,0,0,.6);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#direzione {
  font-size: .85em;
  color: rgba(255,255,255,.85);
  text-shadow: 0 1px 3px rgba(0,0,0,.6);
  white-space: nowrap;
  flex-shrink: 0;
}

#options-toggle {
  width: 40px;
  height: 40px;
  background: rgba(0,0,0,.5);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50%;
  color: white;
  font-size: 17px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* HUD overlay – next station (bottom of map) */
#next-station {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  padding: 32px 16px 16px;
  background: linear-gradient(to top,
    rgba(0,0,0,.85) 0%,
    rgba(0,0,0,.5) 55%,
    transparent 100%);
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 8px 12px;
}

.next-station-info { color: rgba(255,255,255,.45); font-size: 1em; }

.next-station-name {
  font-weight: 700;
  font-size: 1.15em;
  color: white;
  flex: 1;
  text-shadow: 0 1px 4px rgba(0,0,0,.7);
}
.next-station-titolo {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.next-station-op {
  font-size: .85em;
  font-weight: 500;
  color: rgba(255,255,255,.7);
  text-shadow: 0 1px 4px rgba(0,0,0,.7);
}
.next-station-dir {
  font-size: .9em;
  color: rgba(255,255,255,.7);
  align-self: flex-end;
}
.next-station-exit {
  font-size: .8em;
  background: rgba(245,158,11,.2);
  color: var(--amber);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid rgba(245,158,11,.35);
  align-self: flex-end;
}
.next-station-dist {
  font-size: 2em;
  font-weight: 700;
  color: var(--green);
  text-shadow: 0 0 20px rgba(0,200,83,.4);
  align-self: flex-end;
  white-space: nowrap;
}

/* ── Bottom panel ───────────────────────────────── */
#bottom-panel {
  background: var(--surface);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  /* il fumetto della barra distanze sale sopra la mappa e i suoi overlay */
  position: relative;
  z-index: 1100;
}

/* ── Barra distanze ──────────────────────────────
   Orizzontale nel pannello in basso (schermo in orizzontale), verticale sul bordo
   destro della mappa (schermo in verticale): hud.js sposta il contenitore e aggiunge
   .verticale. Ogni elemento ha --pos, la posizione lungo la barra in %. */
#distance-bar-container {
  display: flex;
  align-items: center;
  gap: 12px;
  /* spazio per l'etichetta della prossima stazione sopra e le tacche sotto */
  padding: 36px 16px 24px;
  border-bottom: 1px solid var(--border);
}
.bar-posizione {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(59,158,255,.16);
  display: flex;
  align-items: center;
  justify-content: center;
}
.bar-posizione svg { width: 16px; height: 16px; transform: rotate(90deg); }

#distance-bar {
  flex: 1;
  position: relative;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
}
.bar-percorso {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: var(--pos);
  border-radius: 3px;
  background: var(--green);
  opacity: .55;
}
.bar-tacca {
  position: absolute;
  left: var(--pos);
  top: 12px;
  transform: translateX(-50%);
  font-size: 10px;
  color: #8b949e;
  white-space: nowrap;
}
.bar-tacca--fine { transform: translateX(-100%); }
.bar-tacca--fine::after { content: ' km'; }

.bar-punto {
  position: absolute;
  left: var(--pos);
  top: 50%;
  width: 28px;
  height: 28px;
  transform: translate(-50%, -50%);
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
}
.bar-punto::before {
  content: '';
  width: 10px;
  height: 10px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--green);
}
.bar-punto--uscita::before { border-color: var(--amber); }
.bar-punto--prossima { pointer-events: none; }
.bar-punto--prossima::before {
  width: 12px;
  height: 12px;
  border: none;
  background: var(--green);
  box-shadow: 0 0 0 3px var(--surface);
}
.bar-punto--prossima.bar-punto--uscita::before { background: var(--amber); }

.bar-etichetta {
  position: absolute;
  left: var(--pos);
  bottom: 14px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px 5px 8px;
  border: none;
  border-radius: 999px;
  background: var(--green);
  color: var(--bg);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.bar-etichetta--uscita { background: var(--amber); }
.bar-etichetta svg { width: 14px; height: 14px; fill: currentColor; }

.bar-tooltip {
  position: absolute;
  bottom: 52px;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 160px;
  max-width: min(280px, 90vw);
  padding: 8px 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0,0,0,.5);
  font-size: .82em;
  color: var(--muted);
  line-height: 1.35;
}
.bar-tooltip strong { color: var(--text); font-size: 1.05em; }
.bar-tooltip-dist { color: var(--green); font-weight: 600; }

/* Schermo in verticale: striscia sul bordo destro della mappa, si sale verso la meta */
#distance-bar-container.verticale {
  position: absolute;
  right: 10px;
  top: 76px;
  bottom: 112px;
  z-index: 1000;
  width: 64px;
  box-sizing: border-box;
  flex-direction: column-reverse;
  gap: 10px;
  padding: 16px 0 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(13,17,23,.82);
}
.verticale .bar-posizione svg { transform: none; }
.verticale #distance-bar { width: 6px; height: auto; }
.verticale .bar-percorso { top: auto; bottom: 0; width: 100%; height: var(--pos); }
.verticale .bar-tacca { left: auto; top: auto; right: 14px; bottom: var(--pos); transform: translateY(50%); }
.verticale .bar-tacca--fine::after { content: ''; }
.verticale .bar-punto { left: 50%; top: auto; bottom: var(--pos); transform: translate(-50%, 50%); }
.verticale .bar-etichetta {
  left: auto;
  right: 44px;
  bottom: var(--pos);
  transform: translateY(50%);
  box-shadow: 0 2px 10px rgba(0,0,0,.45);
}
.verticale .bar-tooltip {
  left: auto !important;
  right: 44px;
  min-width: 220px;
  bottom: var(--pos);
  transform: translateY(50%);
}

#stations-toggle-btn {
  width: 100%;
  background: none;
  border: none;
  color: var(--muted);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: .85em;
  font-family: inherit;
  min-height: 48px;
}
#stations-toggle-btn:active { background: var(--surface2); }
#stations-chevron { font-size: .75em; transition: transform .2s; }
#stations-chevron.open { transform: rotate(180deg); }

#stations-list {
  max-height: 40vh;
  overflow-y: auto;
  border-top: 1px solid var(--border);
}

#stations-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85em;
}
#stations-table thead th {
  padding: 8px 12px;
  text-align: left;
  color: var(--muted);
  font-weight: 500;
  font-size: .78em;
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
}
.th-dist { text-align: right; }
#stations-table tbody tr { border-bottom: 1px solid var(--border); }
#stations-table tbody tr:active { background: var(--surface2); }
#stations-table td { padding: 10px 12px; vertical-align: middle; }
#stations-table td:first-child { font-weight: 500; }
#stations-table .td-road { color: var(--muted); }
#stations-table .td-dist {
  color: var(--green);
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}
#stations-table .td-exit {
  color: var(--amber);
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}

/* ── Markers ────────────────────────────────────── */
.marker-grigio {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #7d8590;
  border: 2px solid rgba(255,255,255,.6);
}
.marker-rosso {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--red);
  border: 2px solid rgba(255,255,255,.8);
}
.marker-prossima {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green);
  border: 3px solid white;
  box-shadow: 0 0 12px rgba(0,200,83,.7);
}
.marker-uscita {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--amber);
  border: 2px solid rgba(255,255,255,.8);
}
.marker-uscita-prossima {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--amber);
  border: 3px solid white;
  box-shadow: 0 0 12px rgba(245,158,11,.7);
}

/* ── User marker (arrow) ────────────────────────── */
.marker-blu {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.marker-blu .freccia {
  display: block;
  width: 32px;
  height: 32px;
  transition: transform .3s ease;
}
.marker-blu .freccia svg {
  width: 100%;
  height: 100%;
  fill: var(--blue);
  stroke: white;
  stroke-width: 2;
}

/* ── Leaflet dark overrides ─────────────────────── */
.leaflet-popup-content-wrapper {
  background: var(--surface2);
  color: var(--text);
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,.4);
  border: 1px solid var(--border);
}
.leaflet-popup-tip { background: var(--surface2); }
.leaflet-popup-close-button { color: var(--muted) !important; }
/* Attribuzione dei dati: discreta, senza fondo chiaro, leggibile sul tema scuro */
.leaflet-container .leaflet-control-attribution {
  background: transparent;
  color: rgba(255,255,255,.5);
  font-size: 10px;
  line-height: 1.4;
  padding: 0 6px 2px;
}
.leaflet-container .leaflet-control-attribution a { color: rgba(255,255,255,.65); }
/* sopra la sfumatura del pannello "prossima stazione", che altrimenti la nasconde */
#map .leaflet-bottom { z-index: 1001; }

.leaflet-control-zoom a {
  background: var(--surface2) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}
.leaflet-bar {
  border: 1px solid var(--border) !important;
  box-shadow: 0 2px 8px rgba(0,0,0,.3) !important;
}