html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #0f0f0f;
}

.buttons-container {
  position: fixed;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

/* Главная кнопка меню */
.main-toggle-btn {
  --btn-glow: #00ff00;
  position: relative;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid #00ff00;
  background: rgba(15, 15, 15, 0.75);
  background-clip: padding-box;
  color: #00ff00;
  font-size: 32px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  user-select: none;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  box-shadow: 0 0 15px rgba(0, 255, 0, 0.4);
  transform: rotate(0deg) scale(1);
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.3s ease,
              border-color 0.3s ease,
              color 0.3s ease;
}

.main-toggle-btn:hover {
  transform: rotate(0deg) scale(1.08);
}

.buttons-container.open .main-toggle-btn {
  transform: rotate(360deg) scale(1);
}

.buttons-container.open .main-toggle-btn:hover {
  transform: rotate(360deg) scale(1.08);
}

/* Кнопка блокировки повтора трека */
.repeat-toggle-btn {
  --btn-glow: #00ff00;
  position: absolute;
  left: calc(50% + 44px);
  bottom: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1.5px solid #00ff00;
  background: rgba(15, 15, 15, 0.85);
  background-clip: padding-box;
  color: #00ff00;
  font-size: 16px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 3;
  user-select: none;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  box-shadow: 0 0 8px rgba(0, 255, 0, 0.35);
  transition: transform 0.25s ease,
              box-shadow 0.3s ease,
              border-color 0.3s ease,
              color 0.3s ease,
              background 0.3s ease;
}

.repeat-toggle-btn:hover {
  transform: scale(1.12);
  background: rgba(255, 255, 255, 0.08);
}

.repeat-toggle-btn:active {
  transform: scale(0.92);
}

.repeat-toggle-btn.locked {
  background: rgba(255, 255, 255, 0.14);
  box-shadow: 0 0 14px currentColor;
}

/* Всплывающее уведомление под кнопкой повтора */
.toast-message {
  position: fixed;
  bottom: 14px;
  left: calc(50% + 61px);
  transform: translateX(-50%) translateY(-6px) scale(0.9);
  padding: 5px 12px;
  border-radius: 14px;
  border: 1.5px solid #00ff00;
  background: rgba(15, 15, 15, 0.92);
  color: #00ff00;
  font-family: monospace, sans-serif;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  text-align: center;
  white-space: nowrap;
  box-shadow: 0 0 10px rgba(0, 255, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  z-index: 20;
  user-select: none;
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast-message.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
}

/* Радиальный селектор */
.radial-menu {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* Кнопки плеера */
.play-button {
  --btn-scale: 1;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--btn-glow);
  color: var(--btn-glow);
  background: rgba(15, 15, 15, 0.85);
  background-clip: padding-box;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  user-select: none;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.2);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              opacity 0.3s ease,
              box-shadow 0.3s ease,
              background 0.3s ease;
  z-index: 1;
}

.play-button:hover {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 20px var(--btn-glow);
}

/* Цвета кнопок */
.play-button.green  { --btn-glow: #00ff00; }
.play-button.purple { --btn-glow: #9d4edd; }
.play-button.orange { --btn-glow: #ffb703; }
.play-button.red    { --btn-glow: #f82121; display: none; }

.buttons-container.has-secret .play-button.red {
  display: flex;
}

.play-button.active {
  --btn-scale: 1.22;
  z-index: 6;
}

/* Иконка */
.btn-icon {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  pointer-events: none;
  transform-origin: 50% 50%;
  will-change: transform;
  backface-visibility: hidden;
  transform: translateZ(0);
  filter: drop-shadow(0 0 6px var(--btn-glow));
}

/* Раскрытие 3 кнопок */
.buttons-container.open .play-button {
  opacity: 1;
  pointer-events: auto;
}

.buttons-container.open .play-button.green {
  transform: translate(calc(-50% - 75px), calc(-50% - 55px)) scale(var(--btn-scale, 1));
  transition-delay: 0.03s;
}

.buttons-container.open .play-button.purple {
  transform: translate(-50%, calc(-50% - 90px)) scale(var(--btn-scale, 1));
  transition-delay: 0.08s;
}

.buttons-container.open .play-button.orange {
  transform: translate(calc(-50% + 75px), calc(-50% - 55px)) scale(var(--btn-scale, 1));
  transition-delay: 0.13s;
}

/* Раскрытие 4 кнопок при секрете */
.buttons-container.has-secret.open .play-button.green {
  transform: translate(calc(-50% - 88px), calc(-50% - 40px)) scale(var(--btn-scale, 1));
  transition-delay: 0.02s;
}

.buttons-container.has-secret.open .play-button.purple {
  transform: translate(calc(-50% - 35px), calc(-50% - 92px)) scale(var(--btn-scale, 1));
  transition-delay: 0.06s;
}

.buttons-container.has-secret.open .play-button.orange {
  transform: translate(calc(-50% + 35px), calc(-50% - 92px)) scale(var(--btn-scale, 1));
  transition-delay: 0.10s;
}

.buttons-container.has-secret.open .play-button.red {
  transform: translate(calc(-50% + 88px), calc(-50% - 40px)) scale(var(--btn-scale, 1));
  transition-delay: 0.14s;
}

/* Анимации дыхания / пульсации */
@keyframes breathe-glow {
  0%, 100% {
    box-shadow: 0 0 8px var(--btn-glow), 0 0 14px rgba(0, 0, 0, 0), inset 0 0 4px var(--btn-glow);
    background: rgba(15, 15, 15, 0.85);
    border-color: var(--btn-glow);
  }
  50% {
    box-shadow: 0 0 22px var(--btn-glow), 0 0 38px var(--btn-glow), inset 0 0 10px var(--btn-glow);
    background: rgba(25, 25, 25, 0.95);
    border-color: #ffffff;
  }
}

@keyframes spin-icon {
  from { transform: rotate(0deg) translateZ(0); }
  to { transform: rotate(360deg) translateZ(0); }
}

/* Пульсация главной кнопки: только когда играет музыка и меню свернуто */
.buttons-container.is-playing:not(.open) .main-toggle-btn {
  animation: breathe-glow 3.2s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
}

/* Пульсация кнопки повтора: только при активной блокировке (.locked) во время воспроизведения */
.buttons-container.is-playing .repeat-toggle-btn.locked {
  animation: breathe-glow 3.2s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
}

/* Пульсация активной кнопки трека */
.play-button.active {
  animation: breathe-glow 3.2s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
}

.play-button.active .btn-icon {
  animation: spin-icon 8s linear infinite;
}

/* Прогресс-кольцо и светлячок */
.progress-ring {
  position: absolute;
  top: -4px;
  left: -4px;
  width: calc(100% + 8px);
  height: calc(100% + 8px);
  pointer-events: none;
  transform: rotate(-90deg);
  opacity: 0;
  overflow: visible;
  transition: opacity 0.3s ease;
}

.progress-trail {
  fill: none;
  stroke: #ffffff;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 175.93;
  stroke-dashoffset: calc(175.93 * (1 - var(--progress, 0)));
  filter: drop-shadow(0 0 6px var(--btn-glow)) drop-shadow(0 0 12px var(--btn-glow));
}

.firefly-wrapper {
  position: absolute;
  top: -4px;
  left: -4px;
  width: calc(100% + 8px);
  height: calc(100% + 8px);
  pointer-events: none;
  border-radius: 50%;
  transform: rotate(calc(var(--progress, 0) * 360deg));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.firefly {
  position: absolute;
  top: 1px;
  left: calc(50% - 3px);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 6px #ffffff, 0 0 14px var(--btn-glow), 0 0 22px var(--btn-glow);
}

/* Орбита светлячка для главной кнопки (64px) */
.main-toggle-btn .progress-ring,
.main-toggle-btn .firefly-wrapper {
  top: -5px;
  left: -5px;
  width: calc(100% + 10px);
  height: calc(100% + 10px);
}

.main-toggle-btn .progress-trail {
  stroke-dasharray: 213.63;
  stroke-dashoffset: calc(213.63 * (1 - var(--progress, 0)));
}

.main-toggle-btn .firefly {
  top: 0px;
}

/* Переключение видимости светлячка */
.buttons-container.is-playing:not(.open) .main-toggle-btn .progress-ring,
.buttons-container.is-playing:not(.open) .main-toggle-btn .firefly-wrapper {
  opacity: 1;
}

.buttons-container.is-playing.open .play-button.active .progress-ring,
.buttons-container.is-playing.open .play-button.active .firefly-wrapper {
  opacity: 1;
}

/* Секретное сообщение */
.secret-message {
  position: fixed;
  top: 18%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  color: #f82121;
  font-family: monospace, sans-serif;
  font-size: 24px;
  font-weight: bold;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-align: center;
  text-shadow: 0 0 10px currentColor, 0 0 25px currentColor;
  opacity: 0;
  pointer-events: none;
  z-index: 10;
  user-select: none;
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.secret-message.visible {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}