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

body {
  background: #0a0a0a;
  color: #f0c040;
  font-family: 'Courier New', Courier, monospace;
  min-height: 100dvh;
  padding: 16px;
}

header {
  text-align: center;
  margin-bottom: 24px;
}

h1 {
  font-size: 28px;
  letter-spacing: 4px;
  text-transform: uppercase;
}

.subtitle {
  font-size: 12px;
  color: #888;
  letter-spacing: 2px;
}

/* picker */
#picker {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 400px;
  margin: 0 auto;
}

select, button {
  font-family: inherit;
  font-size: 14px;
  padding: 10px 12px;
  background: #1a1a1a;
  color: #f0c040;
  border: 1px solid #333;
  border-radius: 4px;
  appearance: none;
  -webkit-appearance: none;
}

select:disabled {
  color: #555;
}

button {
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 13px;
}

button:disabled {
  color: #555;
  cursor: default;
}

button:not(:disabled):active {
  background: #333;
}

/* board */
#board {
  max-width: 500px;
  margin: 0 auto;
}

#board-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

#board-header h2 {
  font-size: 18px;
  letter-spacing: 2px;
}

#back-btn {
  font-size: 12px;
  padding: 6px 12px;
  border: 1px solid #555;
}

/* arrival rows */
.arrival-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: #111;
  border: 1px solid #222;
  margin-bottom: 6px;
}

.arrival-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.line-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.arrival-dest {
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.train-time {
  text-align: right;
  white-space: nowrap;
}

.countdown {
  font-size: 15px;
  font-weight: bold;
}

.countdown.soon {
  color: #ff4444;
}

.countdown.arriving {
  color: #44ff44;
  animation: blink 1s step-end infinite;
}

.abs-time {
  font-size: 11px;
  color: #888;
}

@keyframes blink {
  50% { opacity: 0.3; }
}

.no-data {
  text-align: center;
  color: #555;
  padding: 40px 0;
  font-size: 14px;
}