body {
  font-family: system-ui, sans-serif;
  max-width: 640px;
  margin: 2rem auto;
  padding: 0 1rem;
  color: #222;
  line-height: 1.5;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header form button {
  border: 0;
  background: transparent;
  color: #1a73e8;
  cursor: pointer;
  text-decoration: underline;
}
h1 { font-size: 1.4rem; }
form#gen {
  display: grid;
  gap: .75rem;
}
label { display: grid; gap: .25rem; }
textarea { min-height: 4rem; }
.btn {
  display: inline-block;
  padding: .5rem .9rem;
  background: #1a73e8;
  color: #fff;
  border: 0;
  border-radius: 6px;
  text-decoration: none;
  cursor: pointer;
  text-align: center;
}
.cta { text-align: center; margin-top: 1.5rem; }
.error { color: #b00020; }
#result { margin-top: 1rem; }
.player { width: 100%; margin: .5rem 0; }
#history-sec { margin-top: 1.5rem; }
.hist-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  padding: .5rem;
  margin-bottom: .5rem;
  border: 1px solid #ddd;
  border-radius: 6px;
}
.hist-when { font-size: .8rem; color: #666; }
.hist-meta { color: #555; font-size: .9rem; }
.hist-row .btn { padding: .3rem .6rem; font-size: .85rem; }