/* 听Error酱的歌单：顶栏功能区 + 中部歌单 + 底部播放条 */

:root {
  --mu-bg: #f4f5f8;
  --mu-surface: #ffffff;
  --mu-surface-2: #f6f7f9;
  --mu-text: #1b1f27;
  --mu-muted: #666f7d;
  --mu-faint: #98a1af;
  --mu-line: #e4e7ec;
  --mu-hover: #f1f3f7;
  --mu-accent: #7b68ee;
  --mu-accent-hover: #6956e5;
  --mu-accent-soft: #efedff;
  --mu-danger: #d64545;
  --mu-shadow: 0 12px 32px rgba(24, 31, 45, 0.16);
  --mu-player-h: 104px;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --mu-bg: #121214;
  --mu-surface: #1d1d21;
  --mu-surface-2: #26262b;
  --mu-text: #f3f3f5;
  --mu-muted: #a1a1aa;
  --mu-faint: #77777f;
  --mu-line: #33333a;
  --mu-hover: #292930;
  --mu-accent: #a78bfa;
  --mu-accent-hover: #b8a3ff;
  --mu-accent-soft: #302a4a;
  --mu-danger: #f87171;
  --mu-shadow: 0 14px 36px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--mu-bg);
  color: var(--mu-text);
  font-family: "vivo Sans SC", "Microsoft YaHei", "PingFang SC", "Segoe UI", system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 应用骨架 ---------- */

.mu-app {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  height: 100vh;
  height: 100dvh;
  max-width: none;
  margin: 0;
  padding: 0;
}

.mu-top {
  padding-top: env(safe-area-inset-top, 0px);
  border-bottom: 1px solid var(--mu-line);
  background: var(--mu-surface);
}

.mu-top-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 10px 16px;
}

.mu-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px 6px 8px;
  border-radius: 8px;
  color: var(--mu-text);
  text-decoration: none;
}

.mu-brand:hover {
  background: var(--mu-hover);
}

.mu-brand svg {
  width: 17px;
  height: 17px;
}

.mu-brand strong {
  font-size: 16px;
  font-weight: 650;
  white-space: nowrap;
}

.mu-search {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1 1 240px;
  max-width: 440px;
}

.mu-search > svg {
  position: absolute;
  left: 10px;
  width: 16px;
  height: 16px;
  color: var(--mu-faint);
  pointer-events: none;
}

.mu-search input {
  width: 100%;
  height: 36px;
  padding: 0 34px 0 32px;
  border: 1px solid var(--mu-line);
  border-radius: 8px;
  background: var(--mu-surface-2);
  color: var(--mu-text);
  font: inherit;
  font-size: 13px;
  outline: none;
}

.mu-search input::placeholder {
  color: var(--mu-faint);
}

.mu-search input:focus {
  border-color: var(--mu-accent);
  background: var(--mu-surface);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--mu-accent) 18%, transparent);
}

.mu-search-clear {
  position: absolute;
  right: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--mu-faint);
  cursor: pointer;
}

.mu-search-clear:hover {
  background: var(--mu-hover);
  color: var(--mu-text);
}

.mu-search-clear svg {
  width: 14px;
  height: 14px;
}

.mu-count {
  margin-left: auto;
  color: var(--mu-muted);
  font-size: 12.5px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* ---------- 中部歌单 ---------- */

.mu-stage {
  min-height: 0;
}

.mu-stage-inner {
  height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
  max-width: 1180px;
  margin: 0 auto;
  padding: 10px 16px 28px;
}

.mu-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  --mu-row-extra: 0px;
}

.mu-list.has-actions {
  --mu-row-extra: 36px;
}

.mu-list.is-manager {
  --mu-row-extra: 132px;
}

.mu-row {
  display: grid;
  grid-template-columns: 34px 44px minmax(0, 1fr) minmax(0, 220px) 52px var(--mu-row-extra);
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
}

.mu-row:hover {
  background: var(--mu-hover);
}

.mu-row:focus-visible {
  outline: 2px solid var(--mu-accent);
  outline-offset: -2px;
}

.mu-row.is-active {
  background: var(--mu-accent-soft);
}

.mu-row-index {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  color: var(--mu-faint);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.mu-row.is-active .mu-row-index {
  color: var(--mu-accent);
}

.mu-eq {
  display: inline-flex;
  align-items: flex-end;
  gap: 2px;
  height: 14px;
}

.mu-eq i {
  display: block;
  width: 3px;
  height: 100%;
  border-radius: 2px;
  background: var(--mu-accent);
  transform: scaleY(0.35);
  transform-origin: bottom center;
  animation: mu-eq 0.9s ease-in-out infinite;
}

.mu-eq i:nth-child(2) {
  animation-delay: 0.18s;
}

.mu-eq i:nth-child(3) {
  animation-delay: 0.36s;
}

.mu-row:not(.is-playing) .mu-eq i {
  animation: none;
}

@keyframes mu-eq {
  0%,
  100% {
    transform: scaleY(0.35);
  }
  50% {
    transform: scaleY(1);
  }
}

.mu-row-cover {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  overflow: hidden;
  border-radius: 8px;
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--mu-accent) 24%, var(--mu-surface-2)),
    var(--mu-surface-2)
  );
  color: color-mix(in srgb, var(--mu-accent) 72%, var(--mu-text));
}

.mu-row-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mu-row-cover svg {
  width: 18px;
  height: 18px;
}

.mu-row-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.mu-row-title {
  overflow: hidden;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mu-row.is-active .mu-row-title {
  color: var(--mu-accent);
}

.mu-row-artist {
  overflow: hidden;
  color: var(--mu-muted);
  font-size: 12.5px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mu-row-album {
  overflow: hidden;
  color: var(--mu-muted);
  font-size: 12.5px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mu-row-time {
  color: var(--mu-faint);
  font-size: 12px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.mu-row-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
}

.mu-row-actions .mu-icon-btn {
  width: 30px;
  height: 30px;
}

.mu-row-actions svg {
  width: 15px;
  height: 15px;
}

.mu-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 72px 20px;
  color: var(--mu-muted);
  text-align: center;
}

.mu-empty svg {
  width: 30px;
  height: 30px;
  color: var(--mu-faint);
}

.mu-empty p {
  margin: 0;
  font-size: 14px;
}

.mu-empty small {
  color: var(--mu-faint);
  font-size: 12.5px;
}

/* ---------- 底部播放条 ---------- */

.mu-bar {
  padding-bottom: env(safe-area-inset-bottom, 0px);
  border-top: 1px solid var(--mu-line);
  background: var(--mu-surface);
  box-shadow: 0 -6px 20px rgba(20, 24, 35, 0.06);
}

:root[data-theme="dark"] .mu-bar {
  box-shadow: 0 -6px 20px rgba(0, 0, 0, 0.35);
}

.mu-bar-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  grid-template-areas:
    "progress progress progress"
    "now controls side";
  align-items: center;
  gap: 6px 16px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 10px 16px 12px;
}

.mu-progress {
  display: grid;
  grid-area: progress;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  gap: 10px;
  color: var(--mu-muted);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
}

.mu-progress .mu-time:last-child {
  text-align: right;
}

.mu-now {
  display: flex;
  grid-area: now;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.mu-now-cover {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  overflow: hidden;
  border-radius: 8px;
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--mu-accent) 24%, var(--mu-surface-2)),
    var(--mu-surface-2)
  );
  color: color-mix(in srgb, var(--mu-accent) 72%, var(--mu-text));
}

.mu-now-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mu-now-cover svg {
  width: 20px;
  height: 20px;
}

.mu-now-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.mu-now-title {
  overflow: hidden;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mu-now-meta {
  overflow: hidden;
  color: var(--mu-muted);
  font-size: 12.5px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mu-controls {
  display: flex;
  grid-area: controls;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.mu-side {
  display: flex;
  grid-area: side;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

/* ---------- 音量：默认只有按钮，悬停/聚焦后展开调节区 ---------- */

.mu-volume {
  position: relative;
  display: flex;
  align-items: center;
}

  .mu-volume-pop {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 176px;
  padding: 10px 12px;
  border: 1px solid var(--mu-line);
  border-radius: 8px;
  background: var(--mu-surface);
  box-shadow: var(--mu-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s linear;
  pointer-events: none;
}

.mu-volume-pop::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: -6px;
  width: 10px;
  height: 10px;
  border-right: 1px solid var(--mu-line);
  border-bottom: 1px solid var(--mu-line);
  background: var(--mu-surface);
  transform: rotate(45deg);
}

.mu-volume:hover .mu-volume-pop,
.mu-volume:focus-within .mu-volume-pop,
.mu-volume.is-open .mu-volume-pop {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.mu-volume-pop input[type="range"] {
  flex: 1 1 auto;
}

.mu-volume-num {
  flex: 0 0 auto;
  min-width: 34px;
  color: var(--mu-muted);
  font-size: 12px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ---------- 通用控件 ---------- */

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 18px;
  margin: 0;
  background: transparent;
  outline: none;
  cursor: pointer;
  --mu-range-bg: linear-gradient(
    to right,
    var(--mu-accent) var(--mu-fill, 0%),
    color-mix(in srgb, var(--mu-line) 86%, var(--mu-text)) var(--mu-fill, 0%)
  );
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: var(--mu-range-bg);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 13px;
  height: 13px;
  margin-top: -4.5px;
  border: 2px solid var(--mu-surface);
  border-radius: 50%;
  background: var(--mu-accent);
  box-shadow: 0 1px 4px rgba(15, 20, 30, 0.32);
}

input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: var(--mu-range-bg);
}

input[type="range"]::-moz-range-thumb {
  width: 13px;
  height: 13px;
  border: 2px solid var(--mu-surface);
  border-radius: 50%;
  background: var(--mu-accent);
  box-shadow: 0 1px 4px rgba(15, 20, 30, 0.32);
}

input[type="range"]:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--mu-accent) 22%, transparent);
  border-radius: 999px;
}

.mu-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--mu-muted);
  cursor: pointer;
}

.mu-icon-btn:hover {
  background: var(--mu-hover);
  color: var(--mu-text);
}

.mu-icon-btn:disabled,
.mu-icon-btn.is-pending {
  cursor: default;
  opacity: 0.55;
}

.mu-icon-btn.is-on {
  background: var(--mu-accent-soft);
  color: var(--mu-accent);
}

.mu-icon-btn svg {
  width: 18px;
  height: 18px;
}

.mu-icon-btn.mu-play {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--mu-accent);
  color: #fff;
}

.mu-icon-btn.mu-play:hover {
  background: var(--mu-accent-hover);
  color: #fff;
}

.mu-icon-btn.mu-play svg {
  width: 21px;
  height: 21px;
}

.mu-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 13px;
  border: 1px solid var(--mu-line);
  border-radius: 8px;
  background: var(--mu-surface);
  color: var(--mu-text);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
}

.mu-btn:hover {
  background: var(--mu-hover);
}

.mu-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.mu-btn svg {
  width: 15px;
  height: 15px;
}

.mu-btn-primary {
  border-color: var(--mu-accent);
  background: var(--mu-accent);
  color: #fff;
}

.mu-btn-primary:hover {
  background: var(--mu-accent-hover);
  border-color: var(--mu-accent-hover);
  color: #fff;
}

.mu-btn-danger {
  border-color: color-mix(in srgb, var(--mu-danger) 40%, var(--mu-line));
  background: transparent;
  color: var(--mu-danger);
}

.mu-btn-danger:hover {
  background: color-mix(in srgb, var(--mu-danger) 12%, transparent);
  color: var(--mu-danger);
}

/* ---------- 弹窗 ---------- */

.mu-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(12, 15, 21, 0.55);
}

.mu-dialog {
  width: min(560px, 100%);
  max-height: 88vh;
  overflow-y: auto;
  padding: 18px;
  border: 1px solid var(--mu-line);
  border-radius: 8px;
  background: var(--mu-surface);
  box-shadow: var(--mu-shadow);
}

.mu-dialog-head {
  position: sticky;
  /* 抵消 .mu-dialog 的 18px 内边距，滚动时标题栏贴住弹窗顶边 */
  top: -18px;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: -18px -18px 14px;
  padding: 16px 18px 12px;
  border-bottom: 1px solid var(--mu-line);
  background: var(--mu-surface);
}

.mu-dialog-head h2 {
  margin: 0;
  font-size: 17px;
}

.mu-dialog-head .mu-icon-btn {
  margin-left: auto;
}

.mu-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
  margin-bottom: 12px;
}

.mu-field span {
  color: var(--mu-muted);
  font-size: 12px;
  font-weight: 600;
}

.mu-field input {
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--mu-line);
  border-radius: 8px;
  background: var(--mu-surface-2);
  color: var(--mu-text);
  font: inherit;
  font-size: 13px;
  outline: none;
}

.mu-field input:focus {
  border-color: var(--mu-accent);
}

.mu-field-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.mu-field-row .mu-field {
  margin-bottom: 0;
}

.mu-file-field {
  display: block;
  margin-bottom: 14px;
  cursor: pointer;
}

.mu-file-field input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.mu-file-field > span {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 92px;
  padding: 16px;
  border: 1px dashed var(--mu-line);
  border-radius: 8px;
  background: var(--mu-surface-2);
  color: var(--mu-muted);
}

.mu-file-field > span strong {
  color: var(--mu-text);
}

.mu-file-field > span svg {
  width: 16px;
  height: 16px;
}

.mu-file-field:hover > span {
  border-color: var(--mu-accent);
}

.mu-file-field small {
  display: block;
  margin-top: 6px;
  color: var(--mu-faint);
  font-size: 11.5px;
}

.mu-hint {
  margin: 12px 0;
  color: var(--mu-muted);
  font-size: 12px;
}

.mu-dialog .pg-rows {
  --pg-accent: var(--mu-accent);
  margin: 4px 0 12px;
}

.mu-form-error {
  margin: 0 0 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--mu-danger) 12%, transparent);
  color: var(--mu-danger);
  font-size: 12.5px;
}

.mu-dialog-actions {
  position: sticky;
  bottom: -18px;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px -18px -18px;
  padding: 12px 18px;
  border-top: 1px solid var(--mu-line);
  background: var(--mu-surface);
}

.mu-spacer {
  flex: 1;
}

.mu-toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--mu-player-h, 104px) + 16px);
  z-index: 120;
  max-width: min(480px, calc(100vw - 32px));
  padding: 10px 16px;
  border-radius: 8px;
  background: #252a34;
  color: #fff;
  font-size: 13px;
  box-shadow: var(--mu-shadow);
  transform: translateX(-50%);
}

/* ---------- 响应式 ---------- */

@media (max-width: 1000px) {
  .mu-row {
    grid-template-columns: 34px 44px minmax(0, 1fr) 52px var(--mu-row-extra);
  }

  .mu-row-album {
    display: none;
  }
}

@media (max-width: 720px) {
  .mu-bar-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "progress progress"
      "now side"
      "controls controls";
    gap: 8px 12px;
  }

  .mu-row {
    grid-template-columns: 44px minmax(0, 1fr) 48px var(--mu-row-extra);
    gap: 10px;
  }

  .mu-row-index {
    display: none;
  }

  .mu-now-cover {
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 560px) {
  .mu-top-inner {
    padding: 8px 12px 10px;
  }

  .mu-brand {
    padding-left: 2px;
  }

  .mu-brand strong {
    font-size: 15px;
  }

  .mu-search {
    order: 9;
    flex-basis: 100%;
    max-width: none;
  }

  .mu-stage-inner {
    padding: 8px 12px 22px;
  }

  .mu-bar-inner {
    padding: 8px 12px 10px;
  }

  .mu-row {
    padding: 8px;
  }

  .mu-row-time {
    font-size: 11.5px;
  }

  .mu-list.has-actions {
    --mu-row-extra: 32px;
  }

  .mu-list.is-manager {
    --mu-row-extra: 120px;
  }

  .mu-row-actions .mu-icon-btn {
    width: 28px;
    height: 28px;
  }

  .mu-field-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mu-eq i {
    animation: none;
  }

.mu-volume-pop {
    transition: none;
  }
}