:root {
  color-scheme: dark;
  --bg: #0b0d12;
  --panel: #161a22;
  --accent: #5ec1ff;
  --text: #e8edf4;
  --muted: #8b95a5;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

#enable-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  background: var(--bg);
  text-align: center;
  padding: 2rem;
}

#enable-overlay[hidden] {
  display: none;
}

#enable-btn {
  font-size: 2rem;
  padding: 1rem 2.5rem;
  border-radius: 0.75rem;
  border: none;
  background: var(--accent);
  color: #04121c;
  font-weight: 700;
  cursor: pointer;
}

#enable-btn:hover { filter: brightness(1.08); }

#enable-overlay p {
  color: var(--muted);
  max-width: 32rem;
  font-size: 1rem;
}

#app {
  height: 100%;
  display: flex;
}

#app[hidden] {
  display: none;
}

#playlist-panel {
  width: 320px;
  flex-shrink: 0;
  height: 100%;
  overflow-y: auto;
  background: var(--panel);
  border-right: 1px solid #232833;
  padding: 1.25rem 1rem;
}

#playlist-panel h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

#playlist-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.playlist-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid #232833;
  border-radius: 0.5rem;
  padding: 0.6rem 0.75rem;
}

.playlist-item.is-next {
  border-color: var(--accent);
}

.playlist-item .name {
  font-weight: 600;
  font-size: 0.95rem;
  overflow-wrap: break-word;
}

.playlist-item .file {
  font-size: 0.78rem;
  color: var(--muted);
  font-style: italic;
  overflow-wrap: break-word;
  margin-top: 0.1rem;
}

.playlist-item .time {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.playlist-item .countdown {
  font-size: 0.85rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  margin-top: 0.25rem;
}

.playlist-empty {
  color: var(--muted);
  font-size: 0.85rem;
}

main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  text-align: center;
  padding: 2rem;
}

#status {
  font-size: 1.5rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

#next-label {
  color: var(--muted);
  font-size: 1.1rem;
  margin-top: 2rem;
}

#next-file {
  font-size: 2rem;
  font-weight: 600;
  max-width: 90vw;
  overflow-wrap: break-word;
}

#countdown {
  font-size: 5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}