* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: #0f1a14;
  color: #e8f0ea;
}
header, footer {
  text-align: center;
  padding: 1.5rem 1rem;
  background: #16241c;
}
header h1 { margin: 0 0 0.5rem; font-weight: normal; }
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
  display: grid;
  gap: 1.5rem;
}
video {
  width: 100%;
  border-radius: 12px;
  background: #000;
  aspect-ratio: 16 / 9;
}
.playlist ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}
.playlist-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.playlist-head h3 { margin: 0; }
.playlist-head label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
}
.playlist-head select {
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  border: 1px solid #2d4a38;
  background: #1a2e22;
  color: inherit;
}
.playlist button {
  width: 100%;
  text-align: left;
  padding: 0.9rem 1rem;
  border: 1px solid #2d4a38;
  border-radius: 8px;
  background: #1a2e22;
  color: inherit;
  cursor: pointer;
  font-size: 1rem;
}
.playlist button:hover,
.playlist button.active {
  background: #254533;
  border-color: #4a7c59;
}
footer { font-size: 0.85rem; opacity: 0.8; }
.hint {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  opacity: 0.85;
  min-height: 1.2em;
}