body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0b1020;
  color: white;
}

header {
  text-align: center;
  padding: 24px;
  background: #121a33;
}

header h1 {
  margin: 0;
}

header p {
  color: #aab7d4;
}

.controls {
  display: flex;
  gap: 12px;
  padding: 16px;
  background: #0f1730;
}

input,
select,
button {
  padding: 12px;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
}

input {
  flex: 1;
}

button {
  background: #63e6be;
  color: #07111f;
  font-weight: bold;
  cursor: pointer;
}

main {
  display: grid;
  grid-template-columns: 1fr 370px;
  gap: 16px;
  padding: 16px;
}

#map {
  height: 75vh;
  border-radius: 18px;
  overflow: hidden;
}

.train-list {
  display: grid;
  gap: 12px;
  overflow-y: auto;
  max-height: 75vh;
}

.train-card {
  background: #151f3d;
  border: 1px solid #2a365f;
  border-radius: 16px;
  padding: 15px;
  cursor: pointer;
}

.train-card:hover {
  background: #1d2a52;
}

.train-card h2 {
  margin: 0 0 8px;
}

.badge {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  font-weight: bold;
  margin-bottom: 8px;
}

.Passenger {
  background: #2ecc71;
}

.ECS {
  background: #3498db;
}

.Freight {
  background: #9b59b6;
}

.Special {
  background: #f39c12;
}

.delay {
  color: #ff6b6b;
}

.ontime {
  color: #63e6be;
}

.train-icon {
  font-size: 24px;
  text-align: center;
}

.error-card {
  border-color: #ff6b6b;
}

@media (max-width: 850px) {
  .controls {
    flex-direction: column;
  }

  main {
    grid-template-columns: 1fr;
  }

  #map {
    height: 55vh;
  }
}