:root {
  color-scheme: dark;
  font-family: system-ui, sans-serif;
  background: #111;
  color: #eee;
}

body {
  max-width: 56rem;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

h1,
h2 {
  line-height: 1.2;
}

video {
  display: block;
  width: 100%;
  max-height: 60vh;
  margin-block: 1rem;
  background: #000;
}

button,
textarea {
  font: inherit;
}

button {
  padding: 0.65rem 1rem;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

textarea {
  box-sizing: border-box;
  width: 100%;
  min-height: 9rem;
  padding: 0.75rem;
  resize: vertical;
}

.step {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #444;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 0.75rem;
}

.status {
  min-height: 1.5rem;
  padding: 0.75rem;
  background: #222;
  white-space: pre-wrap;
}

.hint {
  color: #bbb;
}