/* ---------------------------------------------------------------------------
   lyrics.css — Lyrics panel: box + resize handle, header controls, the
   auto-scroll iOS-style toggle, and synced/unsynced line styling.
   --------------------------------------------------------------------------- */

.lyrics-box-wrap {
  position: relative;
  flex-shrink: 0;
}
.lyrics-box-wrap.hidden { display: none; }
.lyrics-box {
  max-height: 0;
  min-height: 0;
  overflow: hidden;
  background: transparent;
  transition: max-height 0.45s ease, min-height 0.45s ease, background 0.15s ease;
  display: flex;
  flex-direction: column;
}
.lyrics-box.open { max-height: var(--lyrics-h, 280px); min-height: var(--lyrics-h, 280px); background: transparent; }
.lyrics-resize-handle {
  height: 6px;
  flex-shrink: 0;
  cursor: row-resize;
  position: relative;
}
.lyrics-resize-handle::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: #2a2a2e;
}
.lyrics-resize-handle:hover::after,
.lyrics-resize-handle.resizing::after {
  background: var(--accent-color);
  height: 2px;
}
.lyrics-box.no-transition { transition: none; }
.lyrics-toggle-btn {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 16px;
  border-radius: 16px 16px 0 0;
  background: rgba(26, 26, 29, 0.6);
  backdrop-filter: blur(8px);
  border: 1px solid #2a2a2e;
  border-bottom: none;
  color: #a8a8ae;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  cursor: pointer;
  z-index: 4;
  transition: top 0.45s ease, border-radius 0.15s ease, background 0.15s ease;
  padding: 2px 0 0;
}
@media (hover: hover) { .lyrics-toggle-btn:hover { color: #e8e8ea; } }
.lyrics-toggle-btn svg { transition: transform 0.32s ease; }
.lyrics-box-wrap.open .lyrics-toggle-btn {
  top: 0;
  border-radius: 0 0 16px 16px;
  border: 1px solid #2a2a2e;
  border-top: none;
  align-items: flex-end;
  padding: 0 0 2px;
}
.lyrics-box-wrap.open .lyrics-toggle-btn svg { transform: rotate(180deg); }
.lyrics-box-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px 6px;
  flex-shrink: 0;
}
.lyrics-header-spacer { flex: 1; }
.lyrics-header-btn {
  background: #2a2a2e;
  border: none;
  color: #d8d8dc;
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
}
@media (hover: hover) { .lyrics-header-btn:hover { background: #35353a; color: #e8e8ea; } }
.lyrics-header-btn.hidden { display: none; }
.lyrics-scroll-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #c8c8ce;
}
.lyrics-toggle-icon { flex-shrink: 0; }
.lyrics-scroll-toggle-wrap.on .lyrics-toggle-icon-auto { color: var(--accent-color); }
.ios-toggle {
  position: relative;
  width: 36px;
  height: 21px;
  border-radius: 11px;
  background: #35353a;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: background 0.2s ease;
}
.ios-toggle.on { background: var(--accent-color); }
.ios-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: #fff;
  transition: left 0.2s ease;
}
.ios-toggle.on .ios-toggle-thumb { left: 17px; }
.lyrics-header-icon-btn {
  background: none;
  border: none;
  color: #d8d8dc;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
}
@media (hover: hover) { .lyrics-header-icon-btn:hover { background: #35353a; color: #e8e8ea; } }
.lyrics-content {
  flex: 1;
  overflow-y: auto;
  padding: 4px 14px 16px;
  scroll-behavior: smooth;
  text-align: center;
  scrollbar-width: none;
  display: flex;
  flex-direction: column;
}
.lyrics-content::-webkit-scrollbar { display: none; }
.lyrics-empty {
  color: #c8c8ce;
  font-size: 13px;
  text-align: center;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lyrics-empty.hidden { display: none; }
.lyrics-line {
  font-size: 14px;
  line-height: 1.9;
  color: #c8c8ce;
  transition: color 0.2s ease;
}
.lyrics-line.active {
  color: #e8e8ea;
  font-weight: 600;
}
.lyrics-line.unsynced { color: #c8c8ce; }