/* Деликатный аудио-плеер. Маленькая иконка в правом нижнем углу,
   разворачивается в горизонтальную панельку. Не отвлекает от контента. */

.rkh-audio {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 900;
  font-family: inherit;
  font-size: 12px;
  color: var(--ink, #2a2a2a);
}

/* Свёрнутая иконка ♪ */
.rkh-audio-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--rule, rgba(0,0,0,0.15));
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--mute, #888);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, border-color 0.15s, transform 0.15s;
  padding: 0;
}
.rkh-audio-toggle:hover {
  color: var(--ink, #2a2a2a);
  border-color: var(--rule-strong, rgba(0,0,0,0.3));
}
/* Когда играет — иконка чуть «дышит» */
.rkh-audio.playing .rkh-audio-toggle {
  color: var(--accent, #88684c);
  border-color: var(--accent, #88684c);
}
.rkh-audio.playing .rkh-audio-toggle::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid currentColor;
  opacity: 0;
  animation: rkh-audio-pulse 2.2s ease-out infinite;
}
@keyframes rkh-audio-pulse {
  0%   { opacity: 0.4; transform: scale(0.95); }
  100% { opacity: 0;   transform: scale(1.4); }
}

/* Раскрытая панель */
.rkh-audio-panel {
  display: none;
  position: absolute;
  right: 0;
  bottom: 44px;
  width: 280px;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--rule, rgba(0,0,0,0.15));
  border-radius: 6px;
  padding: 12px;
  box-shadow: 0 6px 22px rgba(0,0,0,0.10);
}
.rkh-audio.open .rkh-audio-panel { display: block; }
.rkh-audio.open .rkh-audio-toggle { display: none; }

.rkh-audio-close {
  position: absolute;
  top: 4px;
  right: 6px;
  width: 22px; height: 22px;
  background: transparent; border: none;
  font-size: 17px; line-height: 1;
  color: var(--mute, #888);
  cursor: pointer;
  padding: 0;
}
.rkh-audio-close:hover { color: var(--ink, #2a2a2a); }

.rkh-audio-track {
  margin: 0 22px 8px 0;
  min-height: 30px;
}
.rkh-audio-title {
  font-weight: 500;
  font-size: 13px;
  line-height: 1.3;
  color: var(--ink, #2a2a2a);
}
.rkh-audio-attr {
  font-size: 10px;
  color: var(--mute, #888);
  margin-top: 2px;
  font-style: italic;
}
.rkh-audio-attr a {
  color: var(--mute, #888);
  text-decoration: none;
  border-bottom: 1px dotted var(--mute, #888);
}
.rkh-audio-attr a:hover { color: var(--ink, #2a2a2a); }

.rkh-audio-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}
.rkh-audio-btn {
  width: 28px; height: 28px;
  background: transparent;
  border: 1px solid var(--rule, rgba(0,0,0,0.15));
  border-radius: 50%;
  color: var(--ink, #2a2a2a);
  font-size: 11px;
  cursor: pointer;
  padding: 0;
  display: flex; align-items: center; justify-content: center;
  transition: border-color 0.15s;
}
.rkh-audio-btn:hover { border-color: var(--ink, #2a2a2a); }
.rkh-audio-btn-play { width: 34px; height: 34px; font-size: 13px; }
.rkh-audio-btn[hidden] { display: none; }

.rkh-audio-vol {
  flex: 1;
  margin-left: 4px;
  display: flex; align-items: center; gap: 4px;
}
.rkh-audio-vol input[type=range] {
  flex: 1;
  height: 3px;
  accent-color: var(--mute, #888);
  cursor: pointer;
}
.rkh-audio-vol-icon {
  font-size: 11px;
  color: var(--mute, #888);
}

/* На очень маленьких экранах — поднимаем над «панелью адреса» */
@media (max-width: 560px) {
  .rkh-audio { right: 10px; bottom: 10px; }
  .rkh-audio-panel { width: 240px; }
}