:root {
  color-scheme: dark;
  --background: #07111f;
  --surface: #0e1b2d;
  --surface-raised: #15253a;
  --surface-soft: #1b2d45;
  --text: #f8fafc;
  --muted: #9fb0c5;
  --border: rgba(255, 255, 255, 0.1);
  --accent: #5eead4;
  --accent-strong: #2dd4bf;
  --accent-ink: #042f2e;
  --danger: #fb7185;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-height: 100%;
  background: var(--background);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 80% -10%, rgba(45, 212, 191, 0.18), transparent 35rem),
    linear-gradient(145deg, #07111f 0%, #0b1626 48%, #07111f 100%);
  padding-bottom: 112px;
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(94, 234, 212, 0.7);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  transform: translateY(-180%);
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app-shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: calc(100vh - 112px);
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  min-height: calc(100vh - 112px);
  flex-direction: column;
  gap: 28px;
  padding: 24px 18px;
  border-right: 1px solid var(--border);
  background: rgba(7, 17, 31, 0.78);
  backdrop-filter: blur(22px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 8px;
}

.brand img {
  border-radius: 14px;
  box-shadow: 0 10px 32px rgba(45, 212, 191, 0.2);
}

.brand strong {
  font-size: 1.05rem;
  line-height: 1.2;
}

.sidebar nav {
  display: grid;
  gap: 8px;
}

.mobile-navigation {
  display: none;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 11px 13px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
}

.nav-item span {
  width: 20px;
  color: var(--accent);
  text-align: center;
}

.nav-item:hover,
.nav-item.is-active {
  background: var(--surface-raised);
  color: var(--text);
}

.nav-item.is-active {
  box-shadow: inset 3px 0 0 var(--accent);
}

.sidebar-footer {
  display: grid;
  gap: 12px;
  margin-top: auto;
  padding: 14px 10px;
  border-top: 1px solid var(--border);
}

.privacy-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

.main-content {
  width: min(100%, 1480px);
  margin: 0 auto;
  padding: 32px clamp(22px, 4vw, 58px) 64px;
}

.topbar,
.section-heading,
.library-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.topbar h1,
.section-heading h2,
.status-panel h2,
.dialog-card h2 {
  margin: 0;
}

.topbar h1 {
  font-size: clamp(2rem, 4vw, 3.3rem);
  letter-spacing: -0.05em;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.primary-button,
.secondary-button,
.danger-button,
.avatar-button,
.icon-button,
.text-button {
  border: 0;
  cursor: pointer;
}

.primary-button,
.secondary-button,
.danger-button {
  min-height: 42px;
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 750;
}

.primary-button {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 12px 36px rgba(45, 212, 191, 0.18);
}

.primary-button:hover {
  background: #99f6e4;
}

.primary-button:disabled,
.secondary-button:disabled,
.danger-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.secondary-button {
  border: 1px solid var(--border);
  background: var(--surface-raised);
}

.secondary-button:hover {
  background: var(--surface-soft);
}

.danger-button {
  background: rgba(251, 113, 133, 0.15);
  color: #fecdd3;
}

.text-button {
  padding: 0;
  background: transparent;
  color: var(--muted);
  text-align: left;
}

.text-button:hover {
  color: var(--text);
}

.avatar-button {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(94, 234, 212, 0.35);
  border-radius: 50%;
  background: rgba(94, 234, 212, 0.13);
  color: var(--accent);
  font-weight: 850;
}

.status-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 36px 0;
  padding: clamp(24px, 4vw, 42px);
  overflow: hidden;
  border: 1px solid rgba(94, 234, 212, 0.22);
  border-radius: 26px;
  background:
    linear-gradient(120deg, rgba(94, 234, 212, 0.13), rgba(21, 37, 58, 0.8)),
    var(--surface);
  box-shadow: var(--shadow);
}

.status-panel p,
.empty-state p,
.section-heading p,
.dialog-card p {
  color: var(--muted);
}

.status-panel p {
  max-width: 720px;
  margin: 8px 0 0;
  line-height: 1.65;
}

.app-view {
  margin-top: 34px;
}

.home-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: clamp(26px, 4vw, 46px);
  border: 1px solid rgba(94, 234, 212, 0.22);
  border-radius: 28px;
  background:
    radial-gradient(circle at 88% 20%, rgba(94, 234, 212, 0.2), transparent 20rem),
    linear-gradient(135deg, rgba(21, 37, 58, 0.96), rgba(14, 27, 45, 0.78));
  box-shadow: var(--shadow);
}

.home-hero h2,
.feature-panel h2,
.settings-card h2 {
  margin: 0;
}

.home-hero h2 {
  max-width: 720px;
  font-size: clamp(1.7rem, 3vw, 2.8rem);
  letter-spacing: -0.04em;
}

.home-hero p:not(.eyebrow),
.feature-panel p:not(.eyebrow),
.shell-card p,
.settings-card p:not(.eyebrow) {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.home-hero .primary-button {
  flex: 0 0 auto;
}

.home-section {
  margin-top: 42px;
}

.track-grid-compact {
  grid-template-columns: repeat(auto-fill, minmax(164px, 1fr));
}

.compact-empty-state {
  display: grid;
  gap: 5px;
  padding: 24px;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  color: var(--muted);
}

.compact-empty-state strong {
  color: var(--text);
}

.source-summary-card,
.managed-source-card {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 15px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(14, 27, 45, 0.82);
  color: var(--text);
  text-align: left;
}

button.source-summary-card,
button.managed-source-card {
  cursor: pointer;
}

button.source-summary-card:hover,
button.managed-source-card:hover {
  border-color: rgba(94, 234, 212, 0.42);
  background: var(--surface-raised);
}

.visually-hidden-input {
  position: fixed;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.source-summary-card > span:nth-child(2),
.managed-source-copy {
  display: grid;
  gap: 4px;
}

.source-summary-card small,
.managed-source-copy small {
  color: var(--muted);
}

.source-summary-card > span:last-child {
  color: var(--accent);
  font-size: 1.8rem;
}

.feature-panel {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--border);
  border-radius: 26px;
  background: rgba(14, 27, 45, 0.78);
}

.feature-icon {
  display: grid;
  width: 62px;
  height: 62px;
  place-items: center;
  border-radius: 18px;
  background: rgba(94, 234, 212, 0.12);
  color: var(--accent);
  font-size: 1.8rem;
}

.status-pill {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(159, 176, 197, 0.12);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 750;
  white-space: nowrap;
}

.shell-grid,
.settings-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.shell-card,
.settings-card {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(14, 27, 45, 0.7);
}

.source-management-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.managed-source-card.is-unavailable {
  opacity: 0.62;
}

.settings-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.settings-card {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.settings-card .secondary-button {
  margin-top: 22px;
}

.settings-card-wide {
  grid-column: 1 / -1;
}

.playlist-workspace {
  display: grid;
  grid-template-columns: minmax(230px, 320px) minmax(0, 1fr);
  gap: 20px;
}

.playlist-list,
.playlist-detail {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(14, 27, 45, 0.72);
}

.playlist-list {
  display: grid;
  align-content: start;
  gap: 6px;
  padding: 10px;
}

.playlist-list-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 11px;
  width: 100%;
  padding: 10px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.playlist-list-item:hover,
.playlist-list-item.is-active {
  border-color: var(--border);
  background: var(--surface-raised);
}

.playlist-list-item.is-active {
  box-shadow: inset 3px 0 0 var(--accent);
}

.playlist-list-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  background: rgba(94, 234, 212, 0.11);
  color: var(--accent);
}

.playlist-list-copy {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.playlist-list-copy strong,
.playlist-list-copy small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.playlist-list-copy small,
.playlist-list-arrow {
  color: var(--muted);
}

.playlist-detail {
  min-height: 360px;
  padding: clamp(18px, 3vw, 30px);
}

.playlist-detail-empty {
  display: grid;
  min-height: 300px;
  place-items: center;
  align-content: center;
  gap: 8px;
  color: var(--muted);
  text-align: center;
}

.playlist-detail-empty > span {
  color: var(--accent);
  font-size: 2rem;
}

.playlist-detail-empty p {
  margin: 0;
}

.playlist-detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.playlist-detail-header h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  letter-spacing: -0.04em;
}

.playlist-detail-header p:not(.eyebrow) {
  max-width: 650px;
  margin: 8px 0;
  color: var(--muted);
  line-height: 1.5;
}

.playlist-detail-header small {
  color: var(--muted);
}

.playlist-detail-actions {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.danger-text-button {
  color: #fecdd3;
}

.library-toolbar {
  flex-wrap: wrap;
  margin: 34px 0 24px;
}

.library-view-switcher {
  display: flex;
  flex: 0 0 auto;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(14, 27, 45, 0.72);
}

.library-view-button {
  padding: 9px 14px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-weight: 750;
  cursor: pointer;
}

.library-view-button:hover {
  color: var(--text);
}

.library-view-button.is-active {
  background: rgba(94, 234, 212, 0.13);
  color: var(--accent);
}

.library-query-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1 1 460px;
  gap: 12px;
}

.search-field {
  flex: 1;
  max-width: 620px;
}

.search-field input,
.sort-field select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: rgba(14, 27, 45, 0.86);
  color: var(--text);
}

.search-field input {
  min-height: 46px;
  padding: 11px 15px;
}

.sort-field {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.85rem;
}

.sort-field select {
  padding: 9px 34px 9px 12px;
}

.library-section {
  margin-top: 22px;
}

.library-results-empty .text-button {
  justify-self: start;
  margin-top: 8px;
  color: var(--accent);
}

.section-heading {
  margin-bottom: 20px;
}

.section-heading p {
  margin: 5px 0 0;
  font-size: 0.86rem;
}

.track-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(178px, 1fr));
  gap: 18px;
}

.track-list {
  display: grid;
  gap: 8px;
}

.collection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.collection-grid-item {
  min-width: 0;
}

.collection-card {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(14, 27, 45, 0.72);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}

.collection-card:hover,
.collection-card.is-active {
  transform: translateY(-2px);
  border-color: rgba(94, 234, 212, 0.38);
  background: var(--surface-raised);
}

.collection-card.is-active {
  box-shadow: inset 3px 0 0 var(--accent);
}

.collection-card-artwork {
  position: relative;
  display: grid;
  width: 72px;
  height: 72px;
  overflow: hidden;
  place-items: center;
  border-radius: 15px;
  background:
    radial-gradient(circle at 30% 20%, rgba(94, 234, 212, 0.38), transparent 35%),
    linear-gradient(145deg, #1f3854, #0b1728);
}

.collection-card-artwork img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.collection-card-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.5rem;
  font-weight: 850;
}

.collection-card-copy {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.collection-card-copy > * {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.collection-card-copy span,
.collection-card-copy small,
.collection-card-arrow {
  color: var(--muted);
}

.collection-card-copy span {
  font-size: 0.82rem;
}

.collection-card-copy small {
  font-size: 0.74rem;
}

.collection-card-arrow {
  font-size: 1.5rem;
}

.collection-detail {
  margin-top: 22px;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(14, 27, 45, 0.76);
}

.collection-detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.collection-detail-header h3 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  letter-spacing: -0.04em;
}

.collection-detail-header p:not(.eyebrow) {
  margin: 8px 0;
  color: var(--muted);
  line-height: 1.5;
}

.collection-detail-header small {
  color: var(--muted);
}

.collection-detail-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 10px;
}

.track-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 120px 112px 54px 38px;
  align-items: center;
  gap: 14px;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 16px;
  background: rgba(14, 27, 45, 0.72);
}

.track-row:hover {
  border-color: var(--border);
  background: var(--surface-raised);
}

.track-row-play-target {
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr);
  align-items: center;
  gap: 13px;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.track-row-play-target:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.track-row-artwork-wrap {
  position: relative;
  display: block;
  width: 50px;
  height: 50px;
  overflow: hidden;
  border-radius: 11px;
  background:
    radial-gradient(circle at 30% 20%, rgba(94, 234, 212, 0.38), transparent 35%),
    linear-gradient(145deg, #1f3854, #0b1728);
}

.track-row-artwork-wrap .artwork-fallback {
  font-size: 1.25rem;
}

.track-row-play-icon {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(4, 47, 46, 0.72);
  color: var(--accent);
  opacity: 0;
  transition: opacity 150ms ease;
}

.track-row-play-target:hover .track-row-play-icon,
.track-row-play-target:focus-visible .track-row-play-icon {
  opacity: 1;
}

.track-row-copy {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.track-row-copy > * {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.track-row-copy .track-artist,
.track-row-copy .track-album {
  color: var(--muted);
  font-size: 0.78rem;
}

.track-source-badge,
.track-status-badge {
  overflow: hidden;
  max-width: 100%;
  padding: 5px 8px;
  border-radius: 999px;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.72rem;
  font-weight: 750;
}

.track-source-badge {
  background: rgba(94, 234, 212, 0.1);
  color: var(--accent);
}

.track-status-badge {
  justify-self: start;
  background: rgba(159, 176, 197, 0.12);
  color: var(--muted);
}

.track-status-badge[data-tone="ready"] {
  color: #a7f3d0;
}

.track-status-badge[data-tone="processing"] {
  color: #fde68a;
}

.track-status-badge[data-tone="warning"],
.track-status-badge[data-tone="unavailable"] {
  color: #fecdd3;
}

.track-duration {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.track-actions {
  position: relative;
  justify-self: end;
}

.track-actions summary {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  color: var(--muted);
  cursor: pointer;
  list-style: none;
}

.track-actions summary::-webkit-details-marker {
  display: none;
}

.track-actions summary:hover,
.track-actions[open] summary {
  background: var(--surface-soft);
  color: var(--text);
}

.track-action-menu {
  position: absolute;
  z-index: 20;
  top: calc(100% + 7px);
  right: 0;
  display: grid;
  width: max-content;
  min-width: 180px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-raised);
  box-shadow: var(--shadow);
}

.track-action-menu button {
  padding: 9px 10px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.track-action-menu button:hover {
  background: var(--surface-soft);
}

.track-action-menu button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.track-card {
  min-width: 0;
}

.track-play-target {
  display: block;
  width: 100%;
  padding: 13px;
  border: 1px solid transparent;
  border-radius: 18px;
  background: rgba(14, 27, 45, 0.74);
  text-align: left;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}

.track-play-target:hover {
  transform: translateY(-3px);
  border-color: var(--border);
  background: var(--surface-raised);
}

.track-play-target:disabled {
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
}

.artwork-wrap {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 14px;
  background:
    radial-gradient(circle at 30% 20%, rgba(94, 234, 212, 0.38), transparent 35%),
    linear-gradient(145deg, #1f3854, #0b1728);
}

.track-artwork {
  display: none;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.track-artwork.has-image {
  display: block;
}

.artwork-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.66);
  font-size: 2.6rem;
}

.track-artwork.has-image + .artwork-fallback {
  display: none;
}

.card-play {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  opacity: 0;
  transform: translateY(8px);
  transition: 150ms ease;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
}

.track-play-target:hover .card-play,
.track-play-target:focus-visible .card-play {
  opacity: 1;
  transform: translateY(0);
}

.track-meta {
  display: grid;
  gap: 4px;
  min-width: 0;
  padding: 12px 3px 2px;
}

.track-meta strong,
.track-meta span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.track-title {
  font-size: 0.95rem;
}

.track-artist,
.track-album {
  color: var(--muted);
  font-size: 0.79rem;
}

.empty-state {
  display: grid;
  justify-items: center;
  padding: 60px 24px;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: 24px;
  text-align: center;
}

.empty-icon {
  display: grid;
  width: 70px;
  height: 70px;
  place-items: center;
  margin-bottom: 8px;
  border-radius: 22px;
  background: rgba(94, 234, 212, 0.12);
  color: var(--accent);
  font-size: 2rem;
}

.source-health-card {
  max-width: 720px;
  margin-top: 24px;
}

.dj-workspace-heading,
.dj-mixer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(27, 45, 69, 0.9), rgba(14, 27, 45, 0.88));
}

.dj-workspace-heading h2,
.dj-mixer h3 {
  margin: 0;
}

.dj-workspace-heading p:not(.eyebrow),
.dj-mixer p:not(.eyebrow) {
  max-width: 720px;
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.dj-workspace-heading-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dj-workspace-notice {
  min-height: 24px;
  margin: 18px 0 0;
  color: var(--accent);
  font-size: 0.9rem;
}

.dj-intelligence {
  display: grid;
  grid-template-columns: minmax(240px, 1.2fr) minmax(220px, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin: 14px 0;
  padding: 20px;
  border: 1px solid rgba(94, 234, 212, 0.24);
  border-radius: 20px;
  background:
    radial-gradient(circle at top right, rgba(94, 234, 212, 0.11), transparent 42%),
    rgba(11, 24, 41, 0.94);
}

.dj-intelligence h3,
.dj-intelligence p {
  margin: 0;
}

.dj-intelligence-copy {
  display: grid;
  gap: 7px;
}

.dj-intelligence-copy p:not(.eyebrow),
.dj-intelligence-boundary,
.dj-recommendation span,
.dj-recommendation small {
  color: var(--muted);
  line-height: 1.45;
}

.dj-recommendation {
  display: grid;
  min-height: 68px;
  align-content: center;
  gap: 5px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
}

.dj-recommendation strong {
  color: var(--accent);
}

.dj-intelligence-actions {
  display: grid;
  min-width: 190px;
  gap: 8px;
}

.dj-auto-source {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.dj-auto-source select {
  width: 100%;
  min-height: 42px;
  padding: 9px 34px 9px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  background: var(--surface-raised);
}

.dj-auto-source select:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.dj-intelligence-boundary {
  grid-column: 1 / -1;
}

.dj-deck-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.dj-deck {
  display: grid;
  gap: 16px;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(14, 27, 45, 0.82);
}

.dj-deck.is-playing {
  border-color: rgba(94, 234, 212, 0.75);
  box-shadow: 0 0 0 1px rgba(94, 234, 212, 0.16), 0 16px 38px rgba(0, 0, 0, 0.18);
}

.dj-deck-error {
  border-color: rgba(251, 113, 133, 0.55);
  color: #fecdd3;
}

.dj-deck-header,
.dj-deck-controls,
.dj-deck-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.dj-deck-label strong {
  font-size: 1.2rem;
}

.dj-deck-side,
.dj-deck-state {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dj-deck-state {
  color: var(--accent);
}

.dj-deck-track {
  display: grid;
  min-height: 72px;
  align-content: center;
  gap: 4px;
}

.dj-deck-track strong,
.dj-deck-track span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dj-deck-track span,
.dj-deck-empty {
  color: var(--muted);
  font-size: 0.86rem;
}

.dj-deck-analysis {
  min-height: 34px;
  color: var(--accent);
  font-size: 0.76rem;
  line-height: 1.4;
}

.dj-deck select,
.dj-range-control input {
  width: 100%;
  accent-color: var(--accent-strong);
}

.dj-deck select {
  min-width: 0;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-raised);
  color: var(--text);
}

.dj-deck-controls {
  justify-content: stretch;
}

.dj-deck-controls button {
  flex: 1;
}

.dj-deck-timeline {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) 38px;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 0.69rem;
  font-variant-numeric: tabular-nums;
}

.dj-deck-timeline input {
  width: 100%;
  accent-color: var(--accent-strong);
}

.dj-performance-controls,
.dj-hot-cues {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.dj-performance-controls button,
.dj-hot-cues button {
  min-width: 0;
  padding: 8px 5px;
  border-radius: 9px;
  font-size: 0.72rem;
}

.dj-hot-cue {
  border: 1px solid rgba(94, 234, 212, 0.3);
  background: rgba(94, 234, 212, 0.08);
  color: var(--accent);
}

.dj-rate-control {
  grid-template-columns: auto minmax(0, 1fr) 44px;
  align-items: center;
}

.dj-level-meter {
  position: relative;
  height: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.dj-level-meter::after {
  position: absolute;
  inset: 0;
  width: calc(var(--dj-meter-level, 0) * 100%);
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-strong) 0 76%, #facc15 88%, #fb7185 100%);
  content: "";
  transition: width 90ms linear;
}

.dj-tone-controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
}

.dj-tone-control {
  display: grid;
  min-width: 0;
  gap: 5px;
  color: var(--muted);
  font-size: 0.68rem;
  text-align: center;
}

.dj-tone-control input {
  width: 100%;
  accent-color: var(--accent-strong);
}

.dj-filter-control {
  color: var(--accent);
}

.dj-range-control {
  display: grid;
  min-width: 180px;
  gap: 8px;
  color: var(--muted);
  font-size: 0.84rem;
}

.dj-range-control output {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.dj-crossfader-control small {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
}

.operation-status {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.empty-state h3 {
  margin-bottom: 0;
}

.player-bar {
  position: fixed;
  z-index: 30;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(320px, 1.45fr) minmax(180px, 1fr);
  align-items: center;
  gap: 24px;
  min-height: 96px;
  padding: 14px 24px max(14px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  background: rgba(7, 17, 31, 0.94);
  backdrop-filter: blur(24px);
  box-shadow: 0 -14px 50px rgba(0, 0, 0, 0.25);
}

.now-playing {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 12px;
}

.player-artwork {
  display: grid;
  flex: 0 0 54px;
  width: 54px;
  height: 54px;
  place-items: center;
  overflow: hidden;
  border-radius: 12px;
  background: var(--surface-raised) center / cover no-repeat;
  color: var(--accent);
}

.track-copy {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.track-copy strong,
.track-copy span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.track-copy span {
  color: var(--muted);
  font-size: 0.82rem;
}

.transport {
  display: grid;
  gap: 8px;
}

.transport-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.transport-buttons button {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.transport-buttons button:hover,
.transport-buttons button[aria-pressed="true"] {
  color: var(--accent);
}

.transport-buttons .play-button {
  width: 44px;
  height: 44px;
  background: var(--text);
  color: #08111e;
}

.transport-buttons button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.timeline {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 42px;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.72rem;
}

.timeline input,
.volume-control input {
  accent-color: var(--accent-strong);
}

.volume-control {
  justify-self: end;
}

.volume-control label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

.volume-control input {
  width: min(130px, 18vw);
}

#accountDialog {
  width: min(92vw, 460px);
}

#sourceDialog {
  width: min(92vw, 620px);
}

#aboutDialog {
  width: min(92vw, 520px);
}

#playlistDialog,
#addToPlaylistDialog {
  width: min(92vw, 520px);
}

#accountDialog,
#sourceDialog,
#aboutDialog,
#playlistDialog,
#addToPlaylistDialog {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}

#accountDialog::backdrop,
#sourceDialog::backdrop,
#aboutDialog::backdrop,
#playlistDialog::backdrop,
#addToPlaylistDialog::backdrop {
  background: rgba(2, 8, 18, 0.75);
  backdrop-filter: blur(7px);
}

.dialog-card {
  padding: 6px;
}

.dialog-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.icon-button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface-raised);
  font-size: 1.3rem;
}

.dialog-actions {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.dialog-actions-inline {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dialog-field {
  display: grid;
  gap: 8px;
  margin-top: 20px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.dialog-field small {
  font-weight: 500;
}

.dialog-field input,
.dialog-field textarea,
.dialog-field select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--surface-raised);
  color: var(--text);
}

.dialog-field input,
.dialog-field select {
  min-height: 46px;
  padding: 10px 13px;
}

.dialog-field textarea {
  resize: vertical;
  padding: 12px 13px;
}

.dialog-intro {
  margin: 18px 0 0;
  line-height: 1.6;
}

.source-list {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.source-option {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  width: 100%;
  min-height: 76px;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface-raised);
  color: var(--text);
  text-align: left;
}

.source-option:not(:disabled) {
  cursor: pointer;
}

.source-option:not(:disabled):hover {
  border-color: rgba(94, 234, 212, 0.46);
  background: var(--surface-soft);
}

.source-option:disabled {
  opacity: 0.58;
}

.source-option-icon {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 13px;
  background: rgba(94, 234, 212, 0.12);
  color: var(--accent);
  font-size: 1.15rem;
}

.source-option-copy {
  display: grid;
  gap: 4px;
}

.source-option-copy small {
  color: var(--muted);
}

.source-option-copy .source-format-hint {
  color: var(--accent);
  font-size: 0.72rem;
}

.source-option-action {
  padding: 6px 9px;
  border-radius: 999px;
  background: rgba(94, 234, 212, 0.12);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 750;
}

.about-facts {
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
}

.about-facts div {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-raised);
}

.about-facts dt {
  font-weight: 750;
}

.about-facts dd {
  margin: 5px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.legal-copy {
  margin: 20px 0 0;
  font-size: 0.78rem;
}

.page-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 52px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.toast-region {
  position: fixed;
  z-index: 100;
  right: 18px;
  bottom: 118px;
  display: grid;
  gap: 8px;
}

.toast {
  max-width: min(360px, calc(100vw - 36px));
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-raised);
  box-shadow: var(--shadow);
}

.toast.is-error {
  border-color: rgba(251, 113, 133, 0.45);
}

@media (max-width: 900px) {
  body {
    padding-bottom: calc(154px + env(safe-area-inset-bottom));
  }

  .app-shell {
    display: block;
  }

  .sidebar {
    position: static;
    min-height: auto;
    padding: 16px 18px 0;
    border-right: 0;
    background: transparent;
  }

  .sidebar nav,
  .sidebar-footer {
    display: none;
  }

  .mobile-navigation {
    position: fixed;
    z-index: 40;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    min-height: calc(68px + env(safe-area-inset-bottom));
    padding: 6px 8px max(6px, env(safe-area-inset-bottom));
    border-top: 1px solid var(--border);
    background: rgba(7, 17, 31, 0.97);
    backdrop-filter: blur(24px);
  }

  .mobile-nav-item {
    display: grid;
    min-width: 0;
    place-items: center;
    gap: 3px;
    padding: 5px 2px;
    border: 0;
    border-radius: 12px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
  }

  .mobile-nav-item span {
    font-size: 1.05rem;
  }

  .mobile-nav-item small {
    overflow: hidden;
    max-width: 100%;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mobile-nav-item.is-active {
    background: rgba(94, 234, 212, 0.1);
    color: var(--accent);
  }

  .main-content {
    padding-top: 20px;
  }

  .topbar,
  .status-panel,
  .home-hero {
    align-items: flex-start;
  }

  .topbar {
    flex-direction: column;
  }

  .topbar-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .status-panel {
    flex-direction: column;
  }

  .shell-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .playlist-workspace {
    grid-template-columns: 1fr;
  }

  .dj-workspace-heading,
  .dj-mixer {
    align-items: stretch;
    flex-direction: column;
  }

  .dj-intelligence {
    grid-template-columns: 1fr 1fr;
  }

  .dj-intelligence-actions {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .dj-deck-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .playlist-list {
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  }

  .playlist-detail-header {
    flex-direction: column;
  }

  .track-row {
    grid-template-areas:
      "track duration actions"
      "source status status";
    grid-template-columns: minmax(0, 1fr) auto 38px;
    gap: 8px 10px;
  }

  .track-row-play-target {
    grid-area: track;
  }

  .track-source-badge {
    grid-area: source;
    justify-self: start;
  }

  .track-status-badge {
    grid-area: status;
  }

  .track-duration {
    grid-area: duration;
  }

  .track-actions {
    grid-area: actions;
  }

  .player-bar {
    bottom: calc(68px + env(safe-area-inset-bottom));
    grid-template-columns: 1fr auto;
    min-height: 78px;
    gap: 12px;
    padding: 10px 18px;
  }

  .transport {
    display: block;
    grid-column: auto;
    grid-row: auto;
  }

  .transport-buttons {
    gap: 0;
  }

  .transport-buttons button:not(.play-button),
  .timeline {
    display: none;
  }

  .volume-control {
    display: none;
  }
}

@media (max-width: 580px) {
  .main-content {
    padding-right: 16px;
    padding-left: 16px;
  }

  .topbar h1 {
    font-size: 2.3rem;
  }

  .home-hero {
    align-items: stretch;
    flex-direction: column;
  }

  .home-hero .primary-button {
    align-self: flex-start;
  }

  #sourcesView > .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  #playlistsView > .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .playlist-detail-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .playlist-detail-actions .danger-text-button {
    padding: 10px 0;
  }

  .library-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .library-view-switcher {
    align-self: flex-start;
  }

  .library-query-controls {
    align-items: stretch;
    width: 100%;
    flex-direction: column;
  }

  .search-field {
    width: 100%;
    max-width: none;
  }

  .sort-field {
    justify-content: space-between;
  }

  .library-view-button {
    flex: 1;
  }

  .collection-grid {
    grid-template-columns: 1fr;
  }

  .collection-detail-header {
    flex-direction: column;
  }

  .collection-detail-actions {
    width: 100%;
  }

  .track-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .track-play-target {
    padding: 9px;
  }

  .track-album {
    display: none;
  }

  .feature-panel {
    grid-template-columns: 52px minmax(0, 1fr);
  }

  .feature-panel .status-pill {
    grid-column: 2;
    justify-self: start;
  }

  .feature-icon {
    width: 52px;
    height: 52px;
  }

  .shell-grid,
  .settings-grid {
    grid-template-columns: 1fr;
  }

  .dj-deck-grid {
    grid-template-columns: 1fr;
  }

  .dj-intelligence {
    grid-template-columns: 1fr;
  }

  .dj-intelligence-actions,
  .dj-intelligence-boundary {
    grid-column: auto;
  }

  .dj-intelligence-actions {
    grid-template-columns: 1fr;
  }

  .settings-card-wide {
    grid-column: auto;
  }

  .managed-source-card {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .managed-source-card > :last-child {
    grid-column: 2;
    justify-self: start;
  }

  .player-bar {
    padding-right: 14px;
    padding-left: 14px;
  }

  .player-artwork {
    flex-basis: 46px;
    width: 46px;
    height: 46px;
  }

  .source-option {
    grid-template-columns: 40px minmax(0, 1fr);
  }

  .source-option-icon {
    width: 40px;
    height: 40px;
  }

  .source-option-action {
    grid-column: 2;
    justify-self: start;
  }
}