html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: -apple-system, "Hiragino Sans", "Yu Gothic", sans-serif;
}

#header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(20, 20, 30, 0.85);
  color: #fff;
  padding: 8px 12px;
  box-sizing: border-box;
}

#header h1 {
  margin: 0;
  font-size: 16px;
}

#status {
  font-size: 12px;
  opacity: 0.8;
  margin-top: 2px;
}

#map {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 100%;
}

#legend {
  position: absolute;
  bottom: 16px;
  left: 8px;
  z-index: 1000;
  background: rgba(255,255,255,0.9);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 12px;
  display: flex;
  gap: 10px;
  align-items: center;
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
}

.dot.ana { background: #1473e6; }
.dot.jal { background: #d2002d; }
.dot.sky { background: #f7a600; }
.dot.mil { background: #3a3a3a; }

.plane-icon {
  text-align: center;
  line-height: 1;
}

.flight-popup {
  font-size: 13px;
  line-height: 1.5;
}

.route-info {
  display: inline-block;
  margin-top: 4px;
  color: #444;
}

.plane-label {
  font-size: 10px;
  font-weight: bold;
  background: rgba(255,255,255,0.85);
  border-radius: 3px;
  padding: 0 3px;
  white-space: nowrap;
}