:root {
  color-scheme: dark;
  --bg: #05070b;
  --page-bg:
    radial-gradient(circle at 9% -9%, rgba(50, 210, 255, 0.18), transparent 30%),
    radial-gradient(circle at 95% 2%, rgba(255, 93, 142, 0.13), transparent 28%),
    linear-gradient(145deg, #05070b 0%, #0b1018 46%, #07090e 100%);
  --panel: rgba(13, 17, 25, 0.86);
  --panel-strong: rgba(18, 24, 34, 0.97);
  --panel-soft: rgba(255, 255, 255, 0.048);
  --control: rgba(255, 255, 255, 0.066);
  --control-strong: rgba(255, 255, 255, 0.12);
  --control-hover: rgba(255, 255, 255, 0.098);
  --line: rgba(255, 255, 255, 0.11);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #f8fafc;
  --muted: #95a3b5;
  --soft: #d3dbe8;
  --accent: #00d4ff;
  --accent-2: #ff4d8d;
  --accent-3: #f2cc8f;
  --good: #3ddc97;
  --danger: #f25f5c;
  --active-text: #ffffff;
  --menu-bg: rgba(17, 22, 31, 0.98);
  --selected-bg: linear-gradient(135deg, color-mix(in srgb, var(--accent), transparent 72%), color-mix(in srgb, var(--accent-2), transparent 84%));
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --shadow-soft: 0 14px 38px rgba(0, 0, 0, 0.24);
  --cover-shadow: 0 34px 90px color-mix(in srgb, var(--accent), transparent 78%);
  --glow: color-mix(in srgb, var(--accent), transparent 86%);
  --button-text: #071013;
  --focus-ring: 0 0 0 3px color-mix(in srgb, var(--accent), transparent 68%);
  --radius: 8px;
  font-family:
    "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f9fd;
  --page-bg:
    radial-gradient(circle at 10% -8%, rgba(0, 163, 217, 0.12), transparent 30%),
    radial-gradient(circle at 94% 0%, rgba(242, 95, 92, 0.1), transparent 28%),
    linear-gradient(145deg, #fbfcff 0%, #eef4f9 52%, #ffffff 100%);
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: rgba(255, 255, 255, 0.99);
  --panel-soft: rgba(15, 23, 42, 0.045);
  --control: rgba(15, 23, 42, 0.055);
  --control-strong: rgba(15, 23, 42, 0.078);
  --control-hover: rgba(15, 23, 42, 0.088);
  --line: rgba(15, 23, 42, 0.105);
  --line-strong: rgba(15, 23, 42, 0.17);
  --text: #111827;
  --muted: #6b7280;
  --soft: #374151;
  --accent: #007ea7;
  --accent-2: #f25f5c;
  --accent-3: #c9971a;
  --good: #159a74;
  --danger: #d94a43;
  --active-text: #0f172a;
  --menu-bg: rgba(255, 255, 255, 0.98);
  --selected-bg: linear-gradient(135deg, color-mix(in srgb, var(--accent), transparent 84%), color-mix(in srgb, var(--accent-2), transparent 90%));
  --shadow: 0 22px 64px rgba(15, 23, 42, 0.11);
  --shadow-soft: 0 12px 28px rgba(15, 23, 42, 0.075);
  --cover-shadow: 0 30px 78px rgba(0, 126, 167, 0.18);
  --glow: rgba(0, 126, 167, 0.12);
  --button-text: #ffffff;
  --focus-ring: 0 0 0 3px color-mix(in srgb, var(--accent), transparent 76%);
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  overflow: hidden;
  background: var(--page-bg);
  background-attachment: fixed;
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

.app-shell {
  --shell-gap: clamp(8px, 1vw, 14px);
  --sidebar-width: clamp(218px, 19vw, 280px);
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr) minmax(96px, auto);
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  min-width: 0;
  padding: var(--shell-gap);
  gap: var(--shell-gap);
  transition: grid-template-columns 160ms ease;
}

.app-shell.sidebar-collapsed {
  --sidebar-width: 0px;
  column-gap: 0;
}

.sidebar,
.main-area,
.player-bar,
.library-panel,
.now-panel,
.right-panel {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong), transparent 10%), var(--panel)),
    var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
}

button:focus-visible,
input:focus-visible {
  outline: 0;
  box-shadow: var(--focus-ring);
}

.sidebar {
  grid-row: 1 / 3;
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-height: 100%;
  overflow: auto;
  padding: 18px;
  border-radius: var(--radius);
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--muted), transparent 70%) transparent;
  transition:
    padding 160ms ease,
    align-items 160ms ease;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  margin-bottom: 20px;
}

.brand-copy {
  min-width: 0;
}

.sidebar-toggle {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--control);
  color: var(--soft);
  cursor: pointer;
  transition:
    background 90ms ease,
    border-color 90ms ease,
    color 90ms ease,
    transform 90ms ease;
}

.sidebar-toggle:hover {
  border-color: var(--line-strong);
  background: var(--control-hover);
  color: var(--text);
  transform: translateY(-1px);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent), transparent 16%), color-mix(in srgb, var(--accent-2), transparent 18%)),
    var(--control);
  color: var(--button-text);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.26),
    0 16px 32px color-mix(in srgb, var(--accent), transparent 82%);
}

:root[data-theme="light"] .brand-mark {
  color: var(--button-text);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.34),
    0 14px 26px rgba(0, 126, 167, 0.14);
}

.brand strong,
.section-title strong,
.panel-header strong {
  display: block;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.3;
}

.brand small,
.section-title span,
.panel-header span,
.now-copy span,
.mini-stats small,
.now-metrics small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--control);
  color: var(--muted);
  transition:
    border-color 110ms ease,
    background 110ms ease,
    box-shadow 110ms ease;
}

.search-box:focus-within {
  border-color: color-mix(in srgb, var(--accent), transparent 42%);
  background: var(--control-strong);
  box-shadow: var(--focus-ring);
}

.search-box input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  min-width: 0;
}

.nav-stack {
  display: grid;
  gap: 8px;
  margin: 20px 0;
}

.nav-item,
.command-button,
.tab-button,
.chip {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--soft);
  cursor: pointer;
  transition:
    background 90ms ease,
    border-color 90ms ease,
    color 90ms ease,
    transform 90ms ease,
    box-shadow 90ms ease;
}

.nav-item {
  padding: 0 12px;
}

.nav-item:hover,
.command-button:hover,
.tab-button:hover,
.chip:hover,
.icon-button:hover {
  border-color: var(--line-strong);
  background: var(--control-hover);
}

.nav-item:hover,
.command-button:hover,
.tab-button:hover,
.chip:hover {
  transform: translateY(-1px);
}

.nav-item.active,
.tab-button.active,
.chip.active {
  border-color: color-mix(in srgb, var(--accent), transparent 58%);
  background: var(--selected-bg);
  color: var(--active-text);
}

:root[data-theme="light"] .nav-item.active,
:root[data-theme="light"] .tab-button.active,
:root[data-theme="light"] .chip.active {
  color: var(--active-text);
}

.source-panel {
  display: grid;
  gap: 10px;
  margin-top: auto;
}

.command-button {
  justify-content: center;
  padding: 0 14px;
  border-color: color-mix(in srgb, var(--accent), transparent 62%);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent), transparent 72%), color-mix(in srgb, var(--good), transparent 82%)),
    var(--control);
  font-weight: 700;
}

.command-button.ghost {
  border-color: var(--line);
  background: var(--control);
  font-weight: 650;
}

.mini-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 14px;
}

.mini-stats > div {
  min-height: 58px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.mini-stats span {
  display: block;
  margin-bottom: 4px;
  font-size: 20px;
  font-weight: 800;
}

.app-shell.sidebar-collapsed .sidebar {
  position: fixed;
  top: var(--shell-gap);
  left: var(--shell-gap);
  z-index: 60;
  display: block;
  width: 44px;
  height: 44px;
  min-width: 0;
  max-height: none;
  padding: 0;
  overflow: visible;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.app-shell.sidebar-collapsed .brand {
  display: block;
  width: 44px;
  min-height: 44px;
  margin: 0;
}

.app-shell.sidebar-collapsed .brand-mark,
.app-shell.sidebar-collapsed .brand-copy,
.app-shell.sidebar-collapsed .search-box,
.app-shell.sidebar-collapsed .nav-stack,
.app-shell.sidebar-collapsed .source-panel,
.app-shell.sidebar-collapsed .mini-stats {
  display: none;
}

.app-shell.sidebar-collapsed .sidebar-toggle {
  width: 44px;
  height: 44px;
  margin: 0;
  border-color: var(--line-strong);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong), transparent 4%), var(--panel)),
    var(--panel);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.app-shell.sidebar-collapsed .topbar {
  padding-left: 64px;
}

.main-area {
  grid-column: 2;
  display: grid;
  grid-template-rows: 64px minmax(0, 1fr);
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}

.top-actions,
.transport-buttons,
.player-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 4px;
  height: 40px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, var(--control-strong), var(--control)),
    var(--panel-soft);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--text), transparent 94%);
}

.theme-option {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 72px;
  height: 30px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  transition:
    background 90ms ease,
    color 90ms ease,
    border-color 90ms ease,
    transform 90ms ease;
}

.theme-option:hover {
  color: var(--text);
  background: var(--control-hover);
}

.theme-option.active {
  border-color: color-mix(in srgb, var(--accent), transparent 55%);
  background:
    linear-gradient(180deg, var(--panel-strong), color-mix(in srgb, var(--panel-strong), var(--control) 20%)),
    var(--panel-strong);
  color: var(--text);
  box-shadow: var(--shadow-soft);
}

.theme-option .icon {
  width: 16px;
  height: 16px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.08fr) minmax(0, 0.9fr);
  min-height: 0;
  padding: var(--shell-gap);
  gap: var(--shell-gap);
}

.library-panel,
.now-panel,
.right-panel {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border-radius: var(--radius);
}

.library-panel,
.right-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.pill {
  flex: 0 0 auto;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}

.track-list,
.queue-list {
  min-height: 0;
  overflow: auto;
  padding: 10px;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--muted), transparent 62%) transparent;
}

.track-list.drag-over {
  outline: 1px solid color-mix(in srgb, var(--accent), transparent 35%);
  outline-offset: -8px;
  background: color-mix(in srgb, var(--accent), transparent 92%);
}

.track-row,
.queue-row {
  position: relative;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 68px;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--soft);
  cursor: pointer;
  transition:
    background 90ms ease,
    border-color 90ms ease,
    color 90ms ease,
    transform 90ms ease;
}

.track-row {
  grid-template-columns: 48px minmax(0, 1fr);
}

.track-row:hover,
.queue-row:hover,
.track-row.active,
.queue-row.active {
  border-color: var(--line-strong);
  background: var(--control-hover);
}

.track-row.active,
.queue-row.active {
  color: var(--active-text);
  background: var(--selected-bg);
}

:root[data-theme="light"] .track-row.active,
:root[data-theme="light"] .queue-row.active {
  color: var(--active-text);
}

.track-row.active::before,
.queue-row.active::before {
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 0;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  content: "";
}

.track-row img,
.queue-row img,
.player-track img {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: var(--control);
  box-shadow: 0 8px 18px color-mix(in srgb, var(--bg), transparent 55%);
  object-fit: cover;
}

.track-row strong,
.queue-row strong,
.player-track strong {
  display: block;
  overflow: hidden;
  color: inherit;
  font-size: 14px;
  font-weight: 750;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.track-row span,
.queue-row span,
.player-track span {
  display: block;
  overflow: hidden;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.queue-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.queue-actions .icon-button.active,
.player-track .icon-button.active {
  color: var(--accent-2);
}

.player-track .icon-button.active svg {
  fill: color-mix(in srgb, var(--accent-2), transparent 14%);
}

.track-duration {
  color: var(--muted);
  font-size: 12px;
}

.now-panel {
  position: relative;
  display: grid;
  grid-template-rows: minmax(250px, 1fr) auto auto auto;
  place-items: center;
  padding: 20px;
  isolation: isolate;
}

.now-panel::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 50% 18%, color-mix(in srgb, var(--accent), transparent 76%), transparent 38%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent), transparent 90%), transparent 52%),
    linear-gradient(135deg, var(--panel-soft), transparent);
  content: "";
}

.cover-stage {
  position: relative;
  width: min(100%, 430px);
  aspect-ratio: 1;
  padding: 8px;
  border: 1px solid color-mix(in srgb, var(--accent), var(--line) 74%);
  border-radius: 8px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent), transparent 78%), color-mix(in srgb, var(--accent-2), transparent 86%)),
    var(--panel-strong);
  box-shadow: var(--cover-shadow);
}

.cover-stage img,
.theater-inner img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 6px;
  object-fit: cover;
}

.cover-shine {
  position: absolute;
  inset: 8px;
  border-radius: 6px;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.18), transparent 34%),
    linear-gradient(315deg, transparent 55%, rgba(255, 255, 255, 0.1));
  mix-blend-mode: screen;
  pointer-events: none;
}

.now-copy {
  width: 100%;
  margin-top: 18px;
  text-align: center;
}

.now-copy h1 {
  margin: 5px 0 4px;
  overflow-wrap: anywhere;
  max-width: 100%;
  font-size: clamp(25px, 3vw, 38px);
  line-height: 1.08;
}

.now-copy p {
  margin: 0;
  color: var(--soft);
}

.waveform {
  display: grid;
  grid-template-columns: repeat(72, minmax(2px, 1fr));
  align-items: center;
  gap: 3px;
  width: 100%;
  height: 58px;
  margin-top: 18px;
  cursor: pointer;
}

.wave-bar {
  height: var(--h, 22%);
  min-height: 6px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted), transparent 70%);
  transition:
    height 70ms linear,
    background 80ms ease;
}

.wave-bar.played {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
}

.now-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: 100%;
  margin-top: 18px;
}

.now-metrics > div {
  min-width: 0;
  padding: 12px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  text-align: center;
}

.now-metrics span {
  display: block;
  overflow: hidden;
  font-size: 15px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.panel-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong), transparent 8%), transparent);
}

.tab-button {
  justify-content: center;
  min-width: 0;
  padding: 0 8px;
  font-size: 13px;
}

.panel-tabs .tab-button.active {
  border-color: color-mix(in srgb, var(--accent), transparent 38%);
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--text), transparent 92%),
    0 10px 24px color-mix(in srgb, var(--accent), transparent 88%);
}

.detail-panel {
  display: none;
  min-height: 0;
  overflow: hidden;
}

.detail-panel.active {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.lyric-tools,
.preset-grid,
.toggle-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px;
}

.preset-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.chip {
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  font-size: 12px;
  font-weight: 700;
}

.preset-grid .chip {
  min-width: 0;
  background: var(--control);
}

.lyrics-view,
.theater-lyrics {
  min-height: 0;
  overflow: auto;
  padding: 16px 18px 28px;
  overscroll-behavior: contain;
  scroll-behavior: auto;
  overflow-anchor: none;
  scrollbar-width: thin;
  scrollbar-gutter: stable;
  scrollbar-color: color-mix(in srgb, var(--muted), transparent 62%) transparent;
  -webkit-overflow-scrolling: touch;
  contain: layout paint style;
  transform: translateZ(0);
  will-change: scroll-position;
}

.lyric-line {
  margin: 0 0 18px;
  padding-left: 12px;
  border-left: 2px solid transparent;
  color: color-mix(in srgb, var(--soft), transparent 42%);
  font-size: 17px;
  line-height: 1.5;
  backface-visibility: hidden;
  transform: translate3d(0, 0, 0);
  will-change: transform, color;
  transition:
    color 120ms ease,
    transform 120ms ease;
}

.lyrics-view.large .lyric-line {
  font-size: 22px;
}

.lyric-line.active {
  border-left-color: var(--accent);
  color: var(--text);
  font-weight: 800;
  transform: translate3d(4px, 0, 0);
}

.lyric-line.next {
  color: color-mix(in srgb, var(--soft), transparent 18%);
}

.queue-list {
  padding-top: 12px;
}

.queue-row {
  grid-template-columns: 36px minmax(0, 1fr) auto;
}

.queue-row img {
  width: 36px;
  height: 36px;
}

.queue-actions .icon-button {
  width: 30px;
  height: 30px;
}

.eq-stack {
  display: grid;
  gap: 14px;
  padding: 4px 16px 14px;
}

.eq-stack label {
  display: grid;
  gap: 8px;
}

.eq-stack label span,
.switch-row span {
  color: var(--soft);
  font-size: 13px;
  font-weight: 700;
}

input[type="range"] {
  --range-progress: 0%;
  --range-track: color-mix(in srgb, var(--muted), transparent 82%);
  --range-fill: linear-gradient(90deg, var(--accent), var(--accent-3));
  accent-color: var(--accent);
  display: block;
  min-width: 0;
  cursor: pointer;
  transition: filter 70ms ease;
}

input[type="range"]:hover {
  filter: saturate(1.06);
}

input[type="range"].is-dragging {
  cursor: grabbing;
}

input[type="range"]:focus-visible {
  box-shadow: none;
}

@supports (-webkit-appearance: none) {
  input[type="range"] {
    height: 28px;
    appearance: none;
    background: transparent;
    touch-action: none;
  }

  input[type="range"]::-webkit-slider-runnable-track {
    height: 7px;
    border-radius: 999px;
    background:
      linear-gradient(
        90deg,
        var(--accent) 0%,
        var(--accent-3) var(--range-progress),
        var(--range-track) var(--range-progress),
        var(--range-track) 100%
      );
    box-shadow: inset 0 1px 2px color-mix(in srgb, var(--bg), transparent 72%);
  }

  input[type="range"]::-webkit-slider-thumb {
    width: 18px;
    height: 18px;
    margin-top: -5.5px;
    appearance: none;
    border: 3px solid var(--panel-strong);
    border-radius: 999px;
    background: var(--accent);
    box-shadow:
      0 5px 14px color-mix(in srgb, var(--accent), transparent 58%),
      0 0 0 1px color-mix(in srgb, var(--accent), transparent 35%);
    transition:
      transform 90ms cubic-bezier(0.2, 0.8, 0.2, 1),
      box-shadow 90ms ease,
      background 90ms ease;
    transform: translateY(0) scale(1);
    will-change: transform;
  }

  input[type="range"].is-thumb-hover::-webkit-slider-thumb,
  input[type="range"]:focus-visible::-webkit-slider-thumb {
    background: color-mix(in srgb, var(--accent), white 8%);
    box-shadow:
      0 9px 22px color-mix(in srgb, var(--accent), transparent 55%),
      0 0 0 4px color-mix(in srgb, var(--accent), transparent 86%);
    transform: translateY(-2px) scale(1.08);
  }

  input[type="range"]:active::-webkit-slider-thumb,
  input[type="range"].is-dragging::-webkit-slider-thumb {
    background: color-mix(in srgb, var(--accent), white 12%);
    box-shadow:
      0 8px 22px color-mix(in srgb, var(--accent), transparent 48%),
      0 0 0 5px color-mix(in srgb, var(--accent), transparent 82%);
    transform: translateY(-2px) scale(1.18);
  }

  input[type="range"]::-moz-range-track {
    height: 7px;
    border-radius: 999px;
    background:
      linear-gradient(
        90deg,
        var(--accent) 0%,
        var(--accent-3) var(--range-progress),
        var(--range-track) var(--range-progress),
        var(--range-track) 100%
      );
    box-shadow: inset 0 1px 2px color-mix(in srgb, var(--bg), transparent 72%);
  }

  input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border: 3px solid var(--panel-strong);
    border-radius: 999px;
    background: var(--accent);
    box-shadow:
      0 5px 14px color-mix(in srgb, var(--accent), transparent 58%),
      0 0 0 1px color-mix(in srgb, var(--accent), transparent 35%);
    transition:
      transform 90ms cubic-bezier(0.2, 0.8, 0.2, 1),
      box-shadow 90ms ease,
      background 90ms ease;
    transform: translateY(0) scale(1);
    will-change: transform;
  }

  input[type="range"].is-thumb-hover::-moz-range-thumb,
  input[type="range"]:focus-visible::-moz-range-thumb {
    background: color-mix(in srgb, var(--accent), white 8%);
    box-shadow:
      0 9px 22px color-mix(in srgb, var(--accent), transparent 55%),
      0 0 0 4px color-mix(in srgb, var(--accent), transparent 86%);
    transform: translateY(-2px) scale(1.08);
  }

  input[type="range"]:active::-moz-range-thumb,
  input[type="range"].is-dragging::-moz-range-thumb {
    background: color-mix(in srgb, var(--accent), white 12%);
    box-shadow:
      0 8px 22px color-mix(in srgb, var(--accent), transparent 48%),
      0 0 0 5px color-mix(in srgb, var(--accent), transparent 82%);
    transform: translateY(-2px) scale(1.18);
  }
}

.eq-stack input,
.progress-row input,
.volume {
  width: 100%;
}

.toggle-grid {
  display: grid;
  grid-template-columns: 1fr;
  padding-top: 0;
}

.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.switch-row input {
  width: 18px;
  height: 18px;
  accent-color: var(--good);
}

.player-bar {
  grid-column: 2;
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 1.45fr) minmax(0, 0.78fr);
  align-items: center;
  gap: 14px;
  min-width: 0;
  padding: 14px 16px;
  border-radius: var(--radius);
  overflow: visible;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong), transparent 4%), color-mix(in srgb, var(--panel), transparent 3%)),
    var(--panel);
}

.player-track {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.transport {
  min-width: 0;
}

.transport-buttons {
  justify-content: center;
  margin-bottom: 8px;
}

.icon-button,
.play-button {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--control);
  color: var(--soft);
  cursor: pointer;
  transition:
    background 80ms ease,
    border-color 80ms ease,
    color 80ms ease,
    box-shadow 80ms ease,
    transform 80ms cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: transform;
}

.icon-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px color-mix(in srgb, var(--bg), transparent 82%);
}

.play-button:hover {
  transform: translateY(-1px) scale(1.03);
}

.icon-button.active {
  border-color: color-mix(in srgb, var(--accent), transparent 48%);
  background: color-mix(in srgb, var(--accent), transparent 82%);
  color: var(--active-text);
}

.player-track .icon-button.active {
  color: var(--accent-2);
}

.track-row.active span,
.queue-row.active span {
  color: color-mix(in srgb, var(--active-text), transparent 24%);
}

.icon-button:active,
.play-button:active,
.command-button:active,
.chip:active,
.nav-item:active {
  transform: scale(0.97);
}

.icon-button:disabled,
.play-button:disabled {
  cursor: not-allowed;
  opacity: 0.46;
  transform: none;
}

.play-button {
  width: 50px;
  height: 50px;
  border-color: color-mix(in srgb, var(--accent), transparent 40%);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent), white 6%), color-mix(in srgb, var(--accent-2), black 4%)),
    var(--accent);
  color: var(--button-text);
  box-shadow:
    0 14px 34px color-mix(in srgb, var(--accent), transparent 72%),
    inset 0 1px 0 rgba(255, 255, 255, 0.34);
}

.progress-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
}

.player-tools {
  justify-content: flex-end;
  min-width: 0;
}

.player-tools .volume {
  width: min(118px, 28vw);
}

.speed-control {
  position: relative;
  flex: 0 0 auto;
}

.speed-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 96px;
  height: 38px;
  padding: 0 10px 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, var(--control-strong), var(--control)),
    var(--panel-strong);
  color: var(--text);
  cursor: pointer;
}

.speed-button:hover,
.speed-control.open .speed-button {
  border-color: color-mix(in srgb, var(--accent), transparent 45%);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent), transparent 84%), var(--control)),
    var(--panel-strong);
}

.speed-button span:first-child {
  overflow: hidden;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.speed-button .icon {
  width: 16px;
  height: 16px;
  color: var(--muted);
  transition: transform 90ms ease;
}

.speed-control.open .speed-button .icon {
  transform: rotate(180deg);
}

.speed-menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  z-index: 80;
  display: grid;
  min-width: 128px;
  padding: 6px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--menu-bg);
  box-shadow: var(--shadow);
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  transform: translateY(8px) scale(0.98);
  transform-origin: bottom right;
  backdrop-filter: blur(18px);
  transition:
    opacity 90ms ease,
    transform 90ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.speed-control.open .speed-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.speed-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 34px;
  padding: 0 12px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--soft);
  cursor: pointer;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
  text-align: left;
}

.speed-option:hover {
  background: var(--control-hover);
  color: var(--text);
}

.speed-option.active {
  background: var(--selected-bg);
  color: var(--active-text);
}

.speed-option.active::after {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  content: "";
}

.icon {
  width: 19px;
  height: 19px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  pointer-events: none;
}

.icon * {
  pointer-events: none;
}

[data-icon] {
  pointer-events: none;
}

.play-button .icon {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 180px;
  color: var(--muted);
  text-align: center;
}

.library-empty {
  align-content: center;
  min-height: 360px;
  padding: 28px;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--accent), transparent 82%), transparent 42%),
    linear-gradient(135deg, var(--panel-soft), transparent),
    color-mix(in srgb, var(--accent), transparent 96%);
}

.compact-empty {
  align-content: center;
  gap: 8px;
  min-height: 230px;
  padding: 24px;
}

.empty-mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-bottom: 8px;
  border: 1px solid color-mix(in srgb, var(--accent), transparent 55%);
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent), transparent 84%);
  color: var(--text);
  box-shadow: 0 14px 30px color-mix(in srgb, var(--accent), transparent 82%);
}

.empty-state strong {
  color: var(--text);
  font-size: 18px;
}

.empty-state span {
  max-width: 280px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.empty-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 12px;
}

.theater {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  min-width: 320px;
  padding: 34px;
  background:
    radial-gradient(circle at 18% 12%, color-mix(in srgb, var(--accent), transparent 78%), transparent 36%),
    linear-gradient(135deg, color-mix(in srgb, var(--bg), transparent 4%), color-mix(in srgb, var(--panel-strong), transparent 8%)),
    var(--page-bg);
  backdrop-filter: blur(22px);
}

.theater.open {
  display: block;
}

.close-theater {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 1;
}

.theater-inner {
  display: grid;
  grid-template-columns: minmax(280px, 42vh) minmax(0, 1fr);
  align-items: center;
  gap: 46px;
  width: min(1180px, 100%);
  height: 100%;
  margin: 0 auto;
}

.theater-inner img {
  aspect-ratio: 1;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  box-shadow: 0 30px 100px color-mix(in srgb, var(--accent), transparent 75%);
}

.theater h2 {
  margin: 8px 0 6px;
  overflow-wrap: anywhere;
  font-size: 48px;
  line-height: 1;
}

.theater p,
.theater span {
  color: var(--soft);
}

.theater-lyrics {
  max-height: 50vh;
  margin-top: 28px;
  padding-left: 0;
}

.theater-lyrics .lyric-line {
  font-size: 25px;
}

@media (max-width: 1220px) {
  .app-shell {
    --sidebar-width: 218px;
  }

  .workspace {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .right-panel {
    grid-column: 1 / -1;
    min-height: 250px;
  }

  .detail-panel.active {
    max-height: 260px;
  }
}

@media (max-width: 1120px) and (min-width: 881px) {
  .player-bar {
    grid-template-columns: minmax(0, 0.95fr) minmax(260px, 1.25fr);
    gap: 10px 14px;
  }

  .player-tools {
    grid-column: 1 / -1;
    justify-content: flex-end;
  }
}

@media (max-width: 880px) {
  body {
    overflow: auto;
  }

  .app-shell {
    --shell-gap: 10px;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    height: auto;
    padding: 10px;
  }

  .sidebar {
    grid-row: auto;
    max-height: none;
    overflow: visible;
    padding: 14px;
  }

  .brand {
    margin-bottom: 14px;
  }

  .nav-stack {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin: 12px 0;
  }

  .nav-item {
    justify-content: center;
  }

  .source-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 12px;
  }

  .mini-stats {
    margin-top: 10px;
  }

  .workspace,
  .player-bar {
    grid-template-columns: 1fr;
  }

  .main-area {
    grid-column: 1;
    min-height: auto;
    grid-template-rows: auto auto;
  }

  .workspace {
    min-height: auto;
  }

  .library-panel,
  .right-panel {
    min-height: 320px;
  }

  .now-panel {
    min-height: 560px;
  }

  .player-bar {
    grid-column: 1;
    position: sticky;
    bottom: 10px;
    z-index: 20;
    gap: 12px;
  }

  .theater-inner {
    grid-template-columns: 1fr;
    align-content: center;
    gap: 24px;
  }

  .theater-inner img {
    width: min(100%, 360px);
    justify-self: center;
  }

  .theater h2 {
    font-size: 34px;
  }
}

@media (max-width: 520px) {
  .app-shell {
    padding: 8px;
  }

  .sidebar {
    padding: 12px;
  }

  .brand {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) 34px;
    gap: 10px;
  }

  .brand strong {
    font-size: 16px;
  }

  .search-box {
    height: 40px;
  }

  .topbar,
  .panel-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-actions,
  .theme-switch {
    width: 100%;
  }

  .nav-stack,
  .mini-stats,
  .now-metrics {
    grid-template-columns: 1fr;
  }

  .source-panel {
    grid-template-columns: 1fr;
  }

  .track-row {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .track-actions {
    grid-column: 1 / -1;
    justify-content: flex-end;
  }

  .transport-buttons {
    gap: 5px;
  }

  .player-bar {
    position: static;
    bottom: auto;
  }

  .player-tools {
    flex-wrap: wrap;
    justify-content: stretch;
  }

  .player-tools .volume {
    flex: 1 1 auto;
    width: auto;
  }

  .theater {
    padding: 20px;
  }
}