.mpp-player {
  --mpp-player-bg: #ffffff;
  --mpp-player-border: #d9dde3;
  --mpp-player-border-width: 1px;
  --mpp-btn-bg: #ffffff;
  --mpp-btn-border: #d9dde3;
  --mpp-btn-border-width: 1px;
  --mpp-btn-width: 52px;
  --mpp-btn-height: 52px;
  --mpp-playlist-bg: #ffffff;
  --mpp-playlist-text: #1f2328;
  --mpp-playlist-text-size: 16px;
  --mpp-track-item-bg: #ffffff;
  --mpp-track-item-hover-bg: #f3f4f6;
  --mpp-track-item-hover-text: #111827;
  --mpp-playlist-toggle-bg: #ffffff;
  --mpp-cover-width: 220px;
  --mpp-cover-height: 220px;
  --mpp-cover-radius: 20px;
  --mpp-scrub-bg: #ffffff;
  --mpp-scrub-border: #111827;
  --mpp-scrub-border-width: 2px;
  --mpp-timeline-bg: #e5e7eb;
  --mpp-timeline-radius: 999px;
  --mpp-timeline-border: #d1d5db;
  --mpp-timeline-border-width: 0px;
  --mpp-timeline-stroke: #111827;
  --mpp-timeline-stroke-width: 2px;
  --mpp-text: #1f2328;
  --mpp-muted: #667085;
  --mpp-accent: #111827;
  max-width: 640px;
  margin: 24px 0;
  padding: 22px;
  border: var(--mpp-player-border-width) solid var(--mpp-player-border);
  border-radius: 18px;
  background: var(--mpp-player-bg);
  color: var(--mpp-text);
  box-shadow: 0 12px 32px rgba(16, 24, 40, 0.08);
}

.mpp-equalizer {
  height: 52px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 5px;
  margin-bottom: 18px;
}

.mpp-bar {
  width: 10px;
  min-height: 8px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--mpp-accent) 0%, #4b5563 100%);
  transition: height 0.08s linear;
}

.mpp-cover-area { display: flex; justify-content: center; margin-bottom: 18px; }
.mpp-cover-frame {
  width: var(--mpp-cover-width);
  height: var(--mpp-cover-height);
  border-radius: var(--mpp-cover-radius);
  overflow: hidden;
  background: #f3f4f6;
  border: 1px solid var(--mpp-player-border);
  position: relative;
}
.mpp-cover { width: 100%; height: 100%; object-fit: cover; }
.mpp-cover-fallback {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  font-size: 64px; color: #98a2b3;
}

.mpp-now-playing { text-align: center; margin-bottom: 18px; }
.mpp-now-label { color: var(--mpp-muted); font-size: 13px; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.06em; }
.mpp-track-title { font-size: 22px; font-weight: 700; line-height: 1.25; }

.mpp-controls {
  display: flex; gap: 10px; align-items: center; justify-content: center; margin-bottom: 18px; flex-wrap: wrap;
}

.mpp-btn {
  appearance: none;
  border: var(--mpp-btn-border-width) solid var(--mpp-btn-border);
  background: var(--mpp-btn-bg);
  color: var(--mpp-accent);
  border-radius: 999px;
  width: var(--mpp-btn-width);
  min-width: var(--mpp-btn-width);
  height: var(--mpp-btn-height);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  display: inline-flex; align-items: center; justify-content: center;
}
.mpp-btn:hover, .mpp-playlist-toggle:hover, .mpp-playlist-item-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(16,24,40,.12); }
.mpp-btn.is-active { background: var(--mpp-track-item-hover-bg); border-color: var(--mpp-accent); }

.mpp-btn-icon { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; font-size: 20px; line-height: 1; }
.mpp-btn-icon img { display: block; width: 100%; height: 100%; object-fit: contain; }

.mpp-volume-wrap {
  display: inline-flex; align-items: center; gap: 10px; padding: 0 12px; height: var(--mpp-btn-height);
  border: var(--mpp-btn-border-width) solid var(--mpp-btn-border); background: var(--mpp-btn-bg); border-radius: 999px;
}
.mpp-volume { width: 110px; }

.mpp-progress-row {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; margin-bottom: 16px;
}
.mpp-progress-shell {
  position: relative; height: 26px; display: flex; align-items: center; background: var(--mpp-timeline-bg);
  border: var(--mpp-timeline-border-width) solid var(--mpp-timeline-border); border-radius: var(--mpp-timeline-radius); padding: 0 10px;
}
.mpp-progress-line {
  position: absolute; left: 12px; right: 12px; top: 50%; transform: translateY(-50%);
  height: var(--mpp-timeline-stroke-width); background: var(--mpp-timeline-stroke); border-radius: 999px; pointer-events: none;
}
.mpp-progress {
  -webkit-appearance: none; appearance: none; width: 100%; background: transparent; position: relative; z-index: 2; cursor: pointer;
}
.mpp-progress::-webkit-slider-runnable-track { height: 10px; background: transparent; }
.mpp-progress::-moz-range-track { height: 10px; background: transparent; }
.mpp-progress::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; margin-top: -6px; width: 18px; height: 18px; border-radius: 999px;
  background: var(--mpp-scrub-bg); border: var(--mpp-scrub-border-width) solid var(--mpp-scrub-border);
}
.mpp-progress::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 999px; background: var(--mpp-scrub-bg);
  border: var(--mpp-scrub-border-width) solid var(--mpp-scrub-border);
}
.mpp-time-remaining { min-width: 52px; text-align: right; font-variant-numeric: tabular-nums; color: var(--mpp-muted); }

.mpp-playlist-toggle {
  width: 100%; border: 1px solid var(--mpp-player-border); background: var(--mpp-playlist-toggle-bg); border-radius: 12px;
  padding: 12px 14px; font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
}
.mpp-playlist-panel {
  margin-top: 12px; overflow: hidden; max-height: 0; opacity: 0; transition: max-height .32s ease, opacity .24s ease, margin-top .24s ease;
}
.mpp-playlist-toggle[aria-expanded="true"] + .mpp-playlist-panel { opacity: 1; }
.mpp-playlist-panel-inner { border-top: 1px solid var(--mpp-player-border); padding-top: 12px; }
.mpp-playlist {
  list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; background: var(--mpp-playlist-bg);
}
.mpp-playlist-item-btn {
  width: 100%; text-align: left; border: 1px solid var(--mpp-player-border); background: var(--mpp-track-item-bg); color: var(--mpp-playlist-text);
  border-radius: 12px; padding: 12px 14px; cursor: pointer; font-size: var(--mpp-playlist-text-size);
}
.mpp-playlist-item-btn:hover { background: var(--mpp-track-item-hover-bg); color: var(--mpp-track-item-hover-text); }
.mpp-playlist-item.is-active .mpp-playlist-item-btn {
  border-color: var(--mpp-accent); background: var(--mpp-track-item-hover-bg); color: var(--mpp-track-item-hover-text); font-weight: 700;
}

@media (max-width: 520px) {
  .mpp-player { padding: 16px; }
  .mpp-track-title { font-size: 18px; }
  .mpp-volume { width: 80px; }
}