/* Top-right ambient music toggle */
.music-toggle {
  position: fixed;
  top: 16px; right: 16px;
  z-index: 10;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--surface-glass);
  backdrop-filter: blur(6px);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  color: var(--accent);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, background 0.2s ease;
}
.music-toggle:hover { transform: scale(1.08); }
.music-toggle.playing {
  background: color-mix(in srgb, var(--accent) 90%, transparent);
  color: var(--on-accent);
}

/* Melody picker panel — drops down from top-right */
.melody-panel {
  position: fixed;
  top: 70px; right: 16px;
  z-index: 10;
  width: 210px;
  background: var(--surface);
  backdrop-filter: blur(12px);
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  box-shadow: 0 16px 40px var(--shadow);
  padding: 12px;
  transform: translateY(-8px) scale(0.97);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(.34,1.56,.64,1);
}
.melody-panel.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.melody-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.melody-panel-title {
  font-size: 12px;
  letter-spacing: 0.5px;
  color: var(--accent);
  font-style: italic;
}

.melody-panel-close {
  background: none;
  border: none;
  font-size: 14px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 4px;
  line-height: 1;
}
.melody-panel-close:hover { color: var(--accent); }

#melodyList {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.melody-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface-glass-2);
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: 10px;
  padding: 9px 12px;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.melody-btn:hover { background: color-mix(in srgb, var(--accent) 10%, transparent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.melody-btn.active { background: var(--accent); border-color: var(--accent); }

.melody-emoji { font-size: 18px; line-height: 1; }
.melody-label { font-size: 14px; color: var(--accent-strong); }
.melody-btn.active .melody-label { color: var(--on-accent); }