:root {
  --bg:       #0d0f14;
  --surface:  #151820;
  --surface2: #1c2030;
  --border:   #252a3a;
  --accent:   #4f8cff;
  --accent2:  #00e5c3;
  --warn:     #ff6b4a;
  --text:     #e8eaf2;
  --muted:    #6b7394;

  
  --elevator:  #ffd166;
  --escalator: #a29bfe;
  --stair:     #fd79a8;
  --store:     #55efc4;
}


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

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}


header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.logo { font-weight: 800; font-size: 18px; letter-spacing: -0.5px; }
.logo span { color: var(--accent); }
.subtitle { font-size: 11px; color: var(--muted); margin-top: 2px; }
.divider  { flex: 1; }


.floor-toggle {
  display: flex;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.floor-btn {
  padding: 7px 16px;
  font-weight: 700;
  font-size: 12px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
}

.floor-btn.active { background: var(--accent); color: #fff; }


.main { display: flex; flex: 1; overflow: hidden; }


.sidebar {
  width: 300px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.sidebar-inner { padding: 16px; overflow-y: auto; flex: 1; }

.section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}


.dest-cards { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }

.dest-card {
  background: var(--surface2);
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 10px;
}

.dest-card:hover    { border-color: var(--accent); }
.dest-card.selected { border-color: var(--accent); background: rgba(79,140,255,0.08); }

.dest-icon {
  width: 38px; height: 38px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.dest-name { font-weight: 700; font-size: 13px; margin-bottom: 2px; }
.dest-meta { font-size: 11px; color: var(--muted); }

.dest-check {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 10px;
  flex-shrink: 0;
  margin-left: auto;
}

.dest-card.selected .dest-check { background: var(--accent); border-color: var(--accent); color: #fff; }


.access-toggle {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  margin-bottom: 16px;
  transition: all 0.2s;
}

.access-toggle.on { border-color: var(--elevator); background: rgba(255,209,102,0.07); }

.toggle-icon { font-size: 20px; flex-shrink: 0; }

.toggle-text strong { font-weight: 700; font-size: 12px; display: block; margin-bottom: 2px; }
.toggle-text span   { font-size: 10px; color: var(--muted); }

.sw {
  width: 34px; height: 18px;
  background: var(--border);
  border-radius: 9px;
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
  margin-left: auto;
}
.sw::after {
  content: '';
  position: absolute;
  width: 12px; height: 12px;
  background: #fff;
  border-radius: 50%;
  top: 3px; left: 3px;
  transition: transform 0.2s;
}
.access-toggle.on .sw             { background: var(--elevator); }
.access-toggle.on .sw::after      { transform: translateX(16px); }


.route-btn {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  border: none;
  border-radius: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 16px;
}
.route-btn:hover    { background: #6b9fff; transform: translateY(-1px); }
.route-btn:disabled { background: var(--surface2); color: var(--muted); transform: none; cursor: default; }


.no-route {
  background: rgba(255,107,74,0.08);
  border: 1px solid rgba(255,107,74,0.25);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 11px;
  color: var(--warn);
  display: none;
}
.no-route.visible { display: block; }


.route-result         { display: none; }
.route-result.visible { display: block; }

.route-stats { display: flex; gap: 6px; margin-bottom: 14px; }

.stat-box {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  text-align: center;
}

.stat-val {
  font-weight: 800;
  font-size: 18px;
  color: var(--accent2);
  line-height: 1;
  margin-bottom: 2px;
}

.stat-label {
  font-size: 9px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}


.route-steps { display: flex; flex-direction: column; gap: 5px; }

.step {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 10px;
  background: var(--surface2);
  border-radius: 7px;
  border-left: 3px solid transparent;
  font-size: 11px;
  line-height: 1.4;
}

.step.walk     { border-color: var(--accent);    }
.step.elevator { border-color: var(--elevator);  }
.step.escalator{ border-color: var(--escalator); }
.step.stair    { border-color: var(--stair);     }
.step.dest     { border-color: var(--store);     }

.step-icon { font-size: 14px; flex-shrink: 0; margin-top: 1px; }
.step-dist { font-size: 9px; color: var(--muted); margin-top: 2px; }


.legend {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.legend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
  margin-top: 6px;
}

.legend-item { display: flex; align-items: center; gap: 6px; font-size: 10px; color: var(--muted); }
.legend-dot  { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }


.map-wrap { flex: 1; position: relative; overflow: hidden; }

canvas {
  display: block;
  cursor: grab;
}
canvas:active { cursor: grabbing; }

.floor-badge {
  position: absolute;
  bottom: 16px; right: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-weight: 700;
  font-size: 12px;
  pointer-events: none;
  z-index: 10;
}
.floor-badge span { color: var(--accent); }

.tooltip {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 9px;
  font-size: 11px;
  pointer-events: none;
  display: none;
  z-index: 100;
  max-width: 180px;
  line-height: 1.5;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}