/* ===== Reading Mode (Lo-fi Spotify + focus dim) ===== */

/* Floating toggle button */
#reading-mode-btn {
  position: fixed;
  bottom: 36px;
  right: 24px;
  z-index: 9998;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: #6c5ce7;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.35);
  transition: transform 0.2s ease, background 0.15s, box-shadow 0.2s;
}

#reading-mode-btn:hover {
  background: #5b4bd1;
  transform: translateY(-2px) scale(1.08);
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.45);
}

#reading-mode-btn:active {
  transform: scale(0.95);
}

#reading-mode-btn.active {
  background: #00b894;
  box-shadow: 0 4px 16px rgba(0, 184, 148, 0.4);
}

#reading-mode-btn.active:hover {
  background: #00a383;
}

/* Pulsing dot when music is playing */
#reading-mode-btn.active::after {
  content: "";
  position: absolute;
  top: 6px;
  right: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #ffeaa7;
  box-shadow: 0 0 0 0 rgba(255, 234, 167, 0.7);
  animation: rm-pulse 1.6s infinite;
}

@keyframes rm-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 234, 167, 0.7); }
  70%  { box-shadow: 0 0 0 7px rgba(255, 234, 167, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 234, 167, 0); }
}

/* Player panel */
#reading-mode-panel {
  position: fixed;
  bottom: 24px;
  right: 80px;
  z-index: 9999;
  width: 320px;
  max-width: calc(100vw - 32px);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: #ffffff;
  border-radius: 14px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.22);
  overflow-x: hidden;
  opacity: 0;
  transform: translateY(16px) scale(0.96);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

#reading-mode-panel.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

#reading-mode-panel .rm-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: linear-gradient(135deg, #6c5ce7, #00b894);
  color: #fff;
}

#reading-mode-panel .rm-title {
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

#reading-mode-panel .rm-close {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

#reading-mode-panel .rm-close:hover {
  background: rgba(255, 255, 255, 0.35);
}

#reading-mode-panel .rm-body {
  padding: 12px;
}

/* Playlist picker */
#reading-mode-panel .rm-picker {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

#reading-mode-panel .rm-chip {
  flex: 1 1 auto;
  padding: 5px 10px;
  font-size: 0.78rem;
  border-radius: 999px;
  border: 1px solid #d8d8e0;
  background: #f4f4f8;
  color: #444;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

#reading-mode-panel .rm-chip:hover {
  border-color: #6c5ce7;
  color: #6c5ce7;
}

#reading-mode-panel .rm-chip.selected {
  background: #6c5ce7;
  border-color: #6c5ce7;
  color: #fff;
}

#reading-mode-panel iframe {
  display: block;
  width: 100%;
  border-radius: 10px;
  border: none;
}

/* ---- Dark mode adaptations ---- */
body.dark-mode #reading-mode-panel {
  background: #161b22;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
}

body.dark-mode #reading-mode-panel .rm-chip {
  background: #21262d;
  border-color: #30363d;
  color: #c9d1d9;
}

body.dark-mode #reading-mode-panel .rm-chip:hover {
  border-color: #8b7bf0;
  color: #b3a7f5;
}

/* Mobile */
@media (max-width: 576px) {
  #reading-mode-btn { bottom: 128px; right: 14px; width: 40px; height: 40px; }
  #reading-mode-panel { bottom: 14px; right: 14px; left: 14px; width: auto; max-width: none; }
}