.airport-board-wrap { margin-top: 10px; }
.airport-board {
  background: #111;
  color: #00ffcc;
  font-family: "Courier New", monospace;
  padding: 12px;
  border-radius: 6px;
  box-shadow: inset 0 0 10px #00000080;
}
.featured-city {
  font-size: 1.2em;
  border-bottom: 1px solid #333;
  padding-bottom: 6px;
  margin-bottom: 10px;
  text-align: center;
}
.flip-unit {
  display: inline-block;
  background: #000;
  color: #0ff;
  padding: 6px 10px;
  border-radius: 4px;
  margin: 3px;
  box-shadow: 0 2px 4px #000a;
  font-weight: bold;
  text-transform: uppercase;
  transform-origin: center top;
  transition: transform 0.4s ease;
}
.flip-animate {
  transform: rotateX(90deg);
}
.city-times {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px 12px;
}
.city-item .city { color: #999; font-weight: 400; }
.city-item .time { color: #00ffb0; font-weight: 600; }
.no-city { color: #666; font-style: italic; }