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

body {
  font-family: system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  padding: 2rem;
}

h1 {
  margin-bottom: 2rem;
}

.app {
  display: grid;
  grid-template-columns: 300px 1fr;
}

.track {
  height: 600px;
  width: 100%;
  background: #f1f1f1;
}

.runner {
  width: 100px;
  height: 100px;
}

/* form */

label {
  display: block;
  font-size: 0.875rem;
  font-weight: bold;
  margin-bottom: 0.25rem;
  text-transform: capitalize;
}

.field {
  margin-bottom: 1.5rem;
}

.hint {
  font-size: 14px;
  color: #666;
  margin-top: 4px;
}