.progress-bar {
  position: relative;
  width: 100%;
  height: 24px;
  display: flex;
  align-items: center;
  cursor: pointer;
}

.progress-track {
  position: relative;
  width: 100%;
  height: 3px;
  background-color: var(--player-progress-bg);
  border-radius: var(--player-radius-full);
  overflow: visible;
  transition: height var(--player-transition-fast) ease;
}

.progress-bar:hover .progress-track,
.progress-bar.seeking .progress-track {
  height: 6px;
}

.progress-buffered {
  position: absolute;
  inset: 0;
  width: 0;
  background-color: var(--player-progress-buffered);
  border-radius: var(--player-radius-full);
  transition: width 0.12s ease;
}

.progress-played {
  position: absolute;
  inset: 0;
  width: 0;
  background-color: var(--player-primary);
  border-radius: var(--player-radius-full);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  transition: width 0.12s ease;
}

.progress-handle {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--player-primary);
  box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4);
  transform: scale(1);
  transition: transform var(--player-transition-fast) ease, box-shadow var(--player-transition-fast) ease;
  margin-right: -6px;
}

.progress-bar:hover .progress-handle,
.progress-bar.seeking .progress-handle {
  transform: scale(1.15);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.2);
}

.progress-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  transform: translateX(-50%);
  padding: 4px 10px;
  background: var(--player-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--player-text);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
}

.progress-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 5px;
  border-style: solid;
  border-color: var(--player-surface) transparent transparent transparent;
}

@media (max-width: 640px) {
  .progress-bar {
    height: 22px;
  }

  .progress-track {
    height: 3px;
  }

  .progress-bar:hover .progress-track,
  .progress-bar.seeking .progress-track {
    height: 5px;
  }

  .progress-handle {
    width: 10px;
    height: 10px;
    margin-right: -5px;
    transform: scale(1);
  }
}