:root {
  color-scheme: light;
  --primary: #5d87ff;
  --primary-ink: #4265ce;
  --primary-hover: #385ac4;
  --primary-soft: #eef3ff;
  --bg: #f6f7fb;
  --surface: #fff;
  --surface-soft: #f9fafc;
  --border: #ebeef4;
  --text: #29324a;
  --muted: #606c83;
  --success: #117758;
  --success-soft: #e8f7f0;
  --danger: #ca3c51;
  --danger-soft: #fff0f2;
  --warning: #9c6b17;
  --warning-soft: #fff6e5;
  --shadow: 0 2px 12px rgba(40, 53, 85, 0.025);
  --sidebar: 232px;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "PingFang SC",
    "Microsoft YaHei",
    sans-serif;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #141821;
  --surface: #1d2330;
  --surface-soft: #252c3a;
  --border: #303849;
  --text: #e5e9f2;
  --muted: #a0abc0;
  --primary: #85a5ff;
  --primary-ink: #85a5ff;
  --primary-hover: #6b93ff;
  --primary-soft: #283657;
  --success: #65d4ae;
  --success-soft: #203e37;
  --danger: #ff8fa0;
  --danger-soft: #422c37;
  --warning: #edc679;
  --warning-soft: #3d3527;
  --shadow: none;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
  line-height: 1.55;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select,
textarea {
  font: inherit;
}
button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}
button,
summary {
  cursor: pointer;
}
button {
  white-space: nowrap;
}
button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}
[hidden] {
  display: none !important;
}
:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1 {
  font-size: 24px;
  letter-spacing: -0.6px;
  font-weight: 650;
  line-height: 1.4;
}
h2 {
  font-size: 16px;
  font-weight: 650;
}
h3 {
  font-size: 14px;
  font-weight: 600;
}
small {
  font-size: 12px;
}
.icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  vertical-align: middle;
}
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 9px;
  color: var(--muted);
  background: transparent;
}
.icon-button:hover {
  color: var(--primary-ink);
  background: var(--primary-soft);
}
.skip-link {
  position: fixed;
  left: 16px;
  top: -100px;
  z-index: 100;
  background: var(--surface);
  padding: 12px;
  border-radius: 8px;
}
.skip-link:focus {
  top: 12px;
}
.sidebar {
  width: var(--sidebar);
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 40;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition:
    width 0.2s,
    transform 0.2s;
}
.brand {
  height: 76px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 0 24px;
  overflow: hidden;
  flex-shrink: 0;
}
.brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  flex-shrink: 0;
}
.brand-name {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.brand-name small {
  display: block;
  font-size: 10px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 1.4px;
  margin-top: -2px;
}
.sidebar-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 1px;
  padding: 23px 26px 12px;
  white-space: nowrap;
}
.sidebar-nav {
  padding: 0 14px;
  display: grid;
  gap: 7px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 46px;
  border-radius: 10px;
  padding: 0 14px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
}
.nav-item:hover {
  background: var(--surface-soft);
  color: var(--text);
}
.nav-item.active {
  color: var(--primary-ink);
  background: var(--primary-soft);
  font-weight: 600;
}
.nav-arrow {
  margin-left: auto;
  width: 14px;
  height: 14px;
}
.sidebar-bottom {
  margin-top: auto;
  padding: 18px 14px;
  border-top: 1px solid var(--border);
}
.sidebar-note {
  margin: 14px 12px 0;
  color: var(--muted);
  font-size: 11px;
}
.admin-frame {
  margin-left: var(--sidebar);
  min-height: 100vh;
  transition: margin-left 0.2s;
}
.topbar {
  height: 64px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  gap: 12px;
}
.topbar-left,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--muted);
}
.breadcrumb .icon {
  width: 14px;
  height: 14px;
}
.breadcrumb-current {
  color: var(--text);
}
.topbar-divider {
  height: 24px;
  width: 1px;
  background: var(--border);
}
.user-button {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text);
  font-size: 13px;
  padding: 0 8px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  height: 40px;
}
.avatar {
  width: 33px;
  height: 33px;
  display: grid;
  place-items: center;
  background: var(--primary-soft);
  color: var(--primary-ink);
  font-weight: 650;
  border-radius: 50%;
  flex-shrink: 0;
}
.user-label small {
  display: block;
  font-size: 10px;
  color: var(--muted);
  line-height: 1.1;
  text-align: left;
}
.user-menu {
  position: relative;
}
.user-popover {
  position: absolute;
  right: 0;
  top: 48px;
  min-width: 185px;
  padding: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.1);
  z-index: 45;
}
.user-popover button {
  border: 0;
  background: transparent;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px;
  border-radius: 6px;
  color: var(--danger);
}
.user-popover button:hover {
  background: var(--danger-soft);
}
.page-tabs {
  height: 43px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 24px;
}
.page-tab {
  height: 30px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 13px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  color: var(--muted);
}
.page-tab.active {
  color: var(--primary-ink);
  background: var(--primary-soft);
  border-color: transparent;
}
.page-tab .icon {
  width: 14px;
  height: 14px;
}
.page-content {
  padding: 24px;
  max-width: 1720px;
  margin: 0 auto;
}
.page-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}
.page-heading p {
  color: var(--muted);
  margin-top: 5px;
  font-size: 13px;
}
.page-kicker {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 1.8px;
  margin-bottom: 4px;
}
.heading-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-footer {
  padding: 22px 0 4px;
  font-size: 11px;
  color: var(--muted);
  text-align: center;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  min-width: 0;
}
.card-body {
  padding: 24px;
}
.card-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.card-heading p,
.panel-heading p {
  color: var(--muted);
  font-size: 12px;
  margin-top: 5px;
}
.card-heading small {
  color: var(--muted);
}
.card + .card {
  margin-top: 20px;
}
.card-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(280px, 1fr);
  gap: 20px;
  margin-top: 20px;
}
.card-grid .card + .card {
  margin-top: 0;
}
.primary-button,
.secondary-button,
.danger-button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  transition:
    background 0.15s,
    border-color 0.15s;
}
.primary-button {
  border: 1px solid var(--primary-ink);
  background: var(--primary-ink);
  color: #fff;
}
:root[data-theme="dark"] .primary-button {
  color: #141821;
}
.primary-button:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}
.secondary-button {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.secondary-button:hover {
  color: var(--primary-ink);
  border-color: var(--primary-ink);
  background: var(--primary-soft);
}
.danger-button {
  border: 1px solid transparent;
  background: var(--danger-soft);
  color: var(--danger);
}
.danger-button:hover {
  border-color: var(--danger);
}
.text-link {
  color: var(--primary-ink);
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.text-link:hover {
  text-decoration: underline;
}
.muted {
  color: var(--muted);
}
.badge,
.file-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 5px;
  white-space: nowrap;
  background: var(--primary-soft);
  color: var(--primary-ink);
  font-size: 11px;
  font-weight: 500;
}
.badge.success,
.file-badge.manual {
  color: var(--success);
  background: var(--success-soft);
}
.badge.neutral {
  color: var(--muted);
  background: var(--surface-soft);
}
.badge.warning {
  color: var(--warning);
  background: var(--warning-soft);
}
.badge.danger {
  color: var(--danger);
  background: var(--danger-soft);
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}
.stats-grid .card + .card {
  margin-top: 0;
}
.stat-card {
  padding: 20px 22px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.stat-label {
  color: var(--muted);
  font-size: 12px;
}
.stat-number {
  font-size: 29px;
  line-height: 1.2;
  font-weight: 650;
  letter-spacing: -0.6px;
  margin: 9px 0 7px;
  font-variant-numeric: tabular-nums;
}
.stat-note {
  color: var(--muted);
  font-size: 11px;
}
.stat-icon {
  height: 49px;
  width: 49px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--primary-soft);
  color: var(--primary-ink);
}
.stat-icon .icon {
  height: 25px;
  width: 25px;
}
.stat-icon.green {
  background: var(--success-soft);
  color: var(--success);
}
.stat-icon.amber {
  background: var(--warning-soft);
  color: var(--warning);
}
.stat-icon.red {
  background: var(--danger-soft);
  color: var(--danger);
}
.welcome-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 27px 30px;
  min-height: 164px;
  background: var(--primary-soft);
  border-color: transparent;
  position: relative;
  overflow: hidden;
}
.welcome-card h2 {
  font-size: 23px;
  letter-spacing: -0.6px;
  margin: 7px 0;
}
.welcome-card p {
  font-size: 13px;
  color: var(--muted);
  max-width: 480px;
}
.welcome-card .welcome-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}
.music-illustration {
  width: 180px;
  height: 126px;
  color: var(--primary-ink);
  flex-shrink: 0;
  margin: 0 25px;
}
.quick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.quick-link {
  display: flex;
  gap: 12px;
  padding: 17px;
  border: 1px solid var(--border);
  border-radius: 10px;
  align-items: center;
  transition: border-color 0.15s;
}
.quick-link:hover {
  border-color: var(--primary-ink);
  background: var(--primary-soft);
}
.quick-link .stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 9px;
}
.quick-link .stat-icon .icon {
  width: 20px;
  height: 20px;
}
.quick-link strong {
  font-size: 13px;
  display: block;
  margin-bottom: 3px;
}
.quick-link small {
  color: var(--muted);
  font-size: 11px;
}
.table-scroll {
  overflow-x: auto;
  border-radius: 0 0 14px 14px;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 12px;
  white-space: nowrap;
}
.data-table th {
  background: var(--surface-soft);
  color: var(--muted);
  font-weight: 500;
  font-size: 11px;
  padding: 13px 24px;
}
.data-table td {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}
.data-table tbody tr:hover {
  background: var(--surface-soft);
}
.data-table td strong {
  font-size: 13px;
  display: block;
  font-weight: 600;
}
.data-table td small {
  display: block;
  color: var(--muted);
  margin-top: 4px;
  max-width: 230px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.data-table .actions {
  display: flex;
  gap: 8px;
}
.data-table .actions button {
  min-height: 32px;
  font-size: 12px;
  padding: 5px 11px;
}
.data-table code {
  font-size: 12px;
}
.provider-overview {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid var(--border);
}
.provider-overview:last-child {
  border: 0;
  padding-bottom: 0;
}
.provider-overview:first-child {
  padding-top: 0;
}
.provider-letter {
  height: 35px;
  width: 35px;
  border-radius: 9px;
  color: var(--primary-ink);
  background: var(--primary-soft);
  display: grid;
  place-items: center;
  font-weight: 650;
}
.provider-copy {
  flex: 1;
  min-width: 0;
}
.provider-overview strong {
  font-size: 12px;
}
.provider-overview small {
  color: var(--muted);
  display: block;
  font-size: 11px;
  margin-top: 3px;
}
.session-list {
  display: grid;
  gap: 15px;
}
.session-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 12px;
}
.session-row > span:first-child {
  color: var(--muted);
}
.status-text {
  color: var(--success);
  font-size: 12px;
  min-height: 19px;
  overflow-wrap: anywhere;
}
.status-text.error,
.error {
  color: var(--danger);
}
.page-message {
  margin-bottom: 14px;
}
.page-message:empty {
  display: none;
}
.empty-state {
  padding: 42px 20px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.form-grid,
.upload-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
label {
  display: grid;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  min-width: 0;
}
input:not([type="checkbox"]):not([type="file"]),
select,
textarea {
  width: 100%;
  min-width: 0;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 9px 12px;
  font-size: 13px;
  min-height: 39px;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}
input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.7;
}
input:focus,
textarea:focus,
select:focus {
  border-color: var(--primary-ink);
  box-shadow: 0 0 0 3px var(--primary-soft);
  outline: none;
}
textarea {
  resize: vertical;
  line-height: 1.8;
}
input[type="checkbox"] {
  accent-color: var(--primary-ink);
  width: 15px;
  height: 15px;
  margin: 0;
}
input[type="file"] {
  width: 100%;
  font-size: 12px;
  color: var(--muted);
  padding: 5px;
  border: 1px solid var(--border);
  border-radius: 7px;
}
input[type="file"]::file-selector-button {
  background: var(--primary-soft);
  color: var(--primary-ink);
  border: 0;
  border-radius: 4px;
  padding: 6px 10px;
  margin-right: 10px;
  cursor: pointer;
}
.wide-field {
  grid-column: 1/-1;
}
.form-footer {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.scope-row {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.scope-row label {
  display: flex;
  align-items: center;
  gap: 8px;
}
.scope-row small {
  color: var(--muted);
}
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 20px 24px;
}
.filter-bar > select {
  width: 160px;
}
.search-wrap {
  position: relative;
  flex: 1;
  min-width: 180px;
}
.search-wrap .icon {
  position: absolute;
  left: 12px;
  top: 10px;
  width: 18px;
  color: var(--muted);
}
.search-wrap input {
  padding-left: 38px !important;
}
.filter-bar label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  white-space: nowrap;
}
.filter-bar label select {
  width: 180px;
}
.filter-count {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}
details > summary {
  list-style: none;
}
details > summary::-webkit-details-marker {
  display: none;
}
.collapsible-heading {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.collapsible-heading h2 {
  font-size: 14px;
}
.collapsible-heading p {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}
.collapsible-heading > .icon {
  color: var(--muted);
  transition: transform 0.15s;
}
details[open] > .collapsible-heading > .icon {
  transform: rotate(180deg);
}
details[open] > .collapsible-heading {
  border-bottom: 1px solid var(--border);
}
.lyrics-layout {
  display: grid;
  grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
  gap: 20px;
  margin-top: 20px;
  align-items: start;
}
.lyrics-layout .card + .card {
  margin-top: 0;
}
.list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 19px 20px;
  border-bottom: 1px solid var(--border);
  min-width: 0;
}
.list-header strong {
  font-size: 14px;
}
.list-header > span {
  color: var(--muted);
  font-size: 12px;
}
#fileList {
  max-height: 570px;
  overflow-y: auto;
  padding: 8px;
}
.lyrics-file-item {
  display: block;
  text-align: left;
  border: 0;
  border-radius: 9px;
  background: transparent;
  width: 100%;
  padding: 15px 12px;
  margin-bottom: 3px;
  color: var(--text);
}
.lyrics-file-item:hover {
  background: var(--surface-soft);
}
.lyrics-file-item.active {
  background: var(--primary-soft);
  color: var(--primary-ink);
}
.file-topline {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
}
.file-name {
  font-size: 12px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.file-meta {
  display: block;
  color: var(--muted);
  font-size: 10px;
  margin-top: 8px;
  overflow-wrap: anywhere;
  line-height: 1.7;
}
.preview-heading {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.preview-heading strong {
  display: block;
  font-size: 14px;
  overflow-wrap: anywhere;
}
.preview-heading small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
}
.preview-actions {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin-top: 15px;
}
.preview-actions button {
  font-size: 12px;
  min-height: 32px;
  padding: 6px 12px;
}
.lyrics-preview,
.lyrics-editor {
  margin: 0;
  padding: 25px 28px;
  min-height: 460px;
  max-height: 620px;
  overflow: auto;
  font:
    13px/2.3 SFMono-Regular,
    Consolas,
    "Liberation Mono",
    monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: var(--surface);
  color: var(--text);
  border-radius: 0 0 14px 14px;
}
.lyrics-preview:empty::before {
  content: "选择左侧文件，预览歌词内容";
  color: var(--muted);
  display: block;
  text-align: center;
  margin-top: 100px;
  font:
    13px/1.8 system-ui,
    sans-serif;
}
.lyrics-editor {
  border: 0 !important;
  width: 100%;
  resize: vertical;
  border-radius: 0 0 14px 14px;
}
.lyrics-textarea-label {
  margin-top: 18px;
}
.new-key-box {
  background: var(--primary-soft);
  padding: 18px;
  border-radius: 8px;
  margin-top: 20px;
}
.new-key-box strong {
  font-size: 12px;
}
.new-key-copy {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 10px;
}
.new-key-copy code {
  flex: 1;
  overflow-wrap: anywhere;
  min-width: 0;
  font-size: 13px;
}
.new-key-box p {
  color: var(--muted);
  font-size: 11px;
  margin-top: 8px;
}
.admin-upstream-list {
  padding: 0 24px;
}
.admin-upstream-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.admin-upstream-item:last-child {
  border-bottom: 0;
}
.upstream-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}
.admin-upstream-main {
  min-width: 0;
  flex: 1;
}
.upstream-title {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 5px;
  flex-wrap: wrap;
}
.upstream-title strong {
  font-size: 14px;
}
.admin-upstream-main > span,
.admin-upstream-main > small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  margin-top: 5px;
}
.admin-upstream-main > code {
  display: block;
  color: var(--muted);
  font-size: 11px;
  margin-top: 6px;
  overflow-wrap: anywhere;
}
.admin-upstream-actions {
  display: flex;
  gap: 7px;
  flex-shrink: 0;
}
.admin-upstream-actions button {
  min-height: 32px;
  padding: 6px 12px;
  font-size: 12px;
}
.upstream-settings {
  margin-top: 12px;
}
.upstream-settings > summary {
  color: var(--primary-ink);
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 0;
}
.upstream-settings > summary .icon {
  height: 14px;
  width: 14px;
}
.upstream-settings[open] > summary .icon {
  transform: rotate(90deg);
}
.upstream-edit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  background: var(--surface-soft);
  padding: 18px;
  border-radius: 9px;
  margin: 12px 0;
}
.upstream-test-result:empty {
  display: none !important;
}
.upstream-test-result {
  padding: 7px 10px;
  border-radius: 5px;
  background: var(--success-soft);
  color: var(--success) !important;
  display: inline-block !important;
  font-size: 11px !important;
}
.upstream-test-result.error {
  color: var(--danger) !important;
  background: var(--danger-soft);
}
.test-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  gap: 14px;
  align-items: end;
}
.admin-log-content {
  margin: 0;
  min-height: 460px;
  max-height: calc(100vh - 350px);
  overflow: auto;
  padding: 24px;
  font:
    12px/2 SFMono-Regular,
    Consolas,
    monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: var(--surface-soft);
  color: var(--text);
  border-radius: 0 0 14px 14px;
}
.log-heading-left {
  display: flex;
  gap: 7px;
  align-items: center;
}
.toast {
  position: fixed;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 5px 30px rgba(20, 30, 50, 0.1);
  border-radius: 9px;
  padding: 12px 20px;
  font-size: 13px;
  color: var(--success);
  max-width: calc(100% - 32px);
}
.toast.error {
  color: var(--danger);
}
.sidebar-overlay {
  display: none;
}
body.sidebar-collapsed {
  --sidebar: 76px;
}
.sidebar-collapsed .brand {
  padding: 0 21px;
}
.sidebar-collapsed .brand-name,
.sidebar-collapsed .nav-item > span,
.sidebar-collapsed .sidebar-label,
.sidebar-collapsed .nav-arrow,
.sidebar-collapsed .sidebar-note {
  display: none;
}
.sidebar-collapsed .sidebar-nav {
  padding: 16px 12px;
}
.sidebar-collapsed .nav-item {
  justify-content: center;
  padding: 0;
  height: 46px;
}
.sidebar-collapsed .sidebar-bottom {
  padding: 15px 12px;
}
.login-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 55% 45%;
  background: var(--surface);
}
.login-visual {
  background: var(--primary-soft);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 32px 42px;
  overflow: hidden;
  position: relative;
}
.login-visual .brand {
  padding: 0;
  height: auto;
  position: relative;
  z-index: 1;
}
.login-art {
  width: min(430px, 85%);
  align-self: center;
  color: var(--primary-ink);
  position: relative;
  z-index: 1;
}
.login-visual::before {
  content: "";
  position: absolute;
  width: 430px;
  height: 430px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.045;
  top: -230px;
  right: -180px;
}
.login-visual-copy {
  text-align: center;
  position: relative;
  z-index: 1;
  margin: 15px 0 34px;
}
.login-visual-copy h2 {
  font-size: 23px;
  letter-spacing: -0.5px;
}
.login-visual-copy p {
  color: var(--muted);
  margin-top: 11px;
  font-size: 13px;
}
.login-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 50px;
  position: relative;
}
.login-tools {
  position: absolute;
  top: 24px;
  right: 25px;
}
.login-form-wrap {
  width: 100%;
  max-width: 370px;
}
.login-mobile-brand {
  display: none;
}
.login-form-wrap h1 {
  font-size: 30px;
  letter-spacing: -1px;
  margin-bottom: 10px;
}
.login-form-wrap > p {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 34px;
}
.login-form {
  display: grid;
  gap: 22px;
}
.login-form label {
  font-size: 12px;
}
.login-form input {
  min-height: 45px !important;
}
.password-wrap {
  position: relative;
}
.password-wrap input {
  padding-right: 45px !important;
}
.password-wrap button {
  position: absolute;
  right: 4px;
  top: 3px;
}
.login-form .primary-button {
  width: 100%;
  min-height: 44px;
  margin-top: 6px;
}
.login-hint {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.9;
  margin-top: 24px;
}
.login-alert {
  background: var(--danger-soft);
  border-radius: 7px;
  color: var(--danger);
  font-size: 12px;
  padding: 11px 14px;
}
.login-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 12px;
}
.login-back:hover {
  color: var(--primary-ink);
}
@media (min-width: 1600px) {
  .page-content {
    padding: 30px;
  }
}
@media (max-width: 1200px) {
  .stats-grid {
    gap: 14px;
  }
  .stat-card {
    padding: 18px;
  }
  .stat-icon {
    width: 42px;
    height: 42px;
  }
  .card-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(270px, 1fr);
  }
  .upstream-edit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .music-illustration {
    margin: 0 0 0 15px;
    width: 140px;
  }
}
@media (max-width: 1000px) {
  .quick-grid {
    grid-template-columns: 1fr;
  }
  .quick-link {
    padding: 13px;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .test-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .test-grid button {
    grid-column: 1/-1;
    justify-self: start;
  }
  .lyrics-layout {
    grid-template-columns: 260px minmax(0, 1fr);
  }
}
@media (max-width: 900px) {
  body,
  body.sidebar-collapsed {
    --sidebar: 232px;
  }
  .sidebar {
    transform: translateX(-100%);
  }
  .admin-frame {
    margin-left: 0;
  }
  .sidebar-open .sidebar {
    transform: translateX(0);
  }
  .sidebar-open .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 35;
    background: rgba(20, 28, 45, 0.36);
    border: 0;
    cursor: pointer;
  }
  .sidebar-open {
    overflow: hidden;
  }
  .sidebar-collapsed .brand {
    padding: 0 24px;
  }
  .sidebar-collapsed .brand-name,
  .sidebar-collapsed .nav-item > span,
  .sidebar-collapsed .sidebar-label,
  .sidebar-collapsed .nav-arrow,
  .sidebar-collapsed .sidebar-note {
    display: block;
  }
  .sidebar-collapsed .sidebar-nav {
    padding: 0 14px;
  }
  .sidebar-collapsed .nav-item {
    justify-content: start;
    padding: 0 14px;
  }
  .sidebar-collapsed .sidebar-bottom {
    padding: 18px 14px;
  }
  .login-page {
    grid-template-columns: 45% 55%;
  }
  .login-visual {
    padding: 28px;
  }
  .login-visual-copy h2 {
    font-size: 19px;
  }
  .login-main {
    padding: 35px;
  }
}
@media (max-width: 640px) {
  .topbar {
    padding: 0 14px;
  }
  .topbar-left,
  .topbar-right {
    gap: 5px;
  }
  .breadcrumb {
    gap: 7px;
  }
  .breadcrumb > a,
  .breadcrumb > .icon,
  .topbar-divider,
  .user-label,
  .desktop-tool {
    display: none;
  }
  .page-tabs {
    padding: 0 16px;
  }
  .page-content {
    padding: 20px 16px;
  }
  h1 {
    font-size: 22px;
  }
  .page-heading {
    align-items: start;
    gap: 10px;
    margin-bottom: 18px;
  }
  .page-heading p {
    font-size: 12px;
  }
  .heading-actions button {
    padding: 8px 11px;
  }
  .heading-actions button .icon {
    display: none;
  }
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
  .stat-card {
    padding: 16px 14px;
    gap: 4px;
    align-items: start;
  }
  .stat-number {
    font-size: 25px;
  }
  .stat-icon {
    width: 32px;
    height: 32px;
    border-radius: 9px;
  }
  .stat-icon .icon {
    width: 18px;
    height: 18px;
  }
  .stat-note {
    font-size: 10px;
  }
  .welcome-card {
    padding: 22px;
  }
  .welcome-card h2 {
    font-size: 20px;
  }
  .music-illustration {
    display: none;
  }
  .card-heading,
  .card-body,
  .filter-bar {
    padding: 18px;
  }
  .card-heading {
    gap: 9px;
  }
  .card-heading h2 {
    font-size: 14px;
  }
  .quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
  .quick-link {
    display: block;
    padding: 14px;
  }
  .quick-link .stat-icon {
    margin-bottom: 10px;
  }
  .quick-link small {
    font-size: 10px;
  }
  .form-grid,
  .upload-grid {
    grid-template-columns: 1fr;
  }
  .filter-bar {
    gap: 10px;
  }
  .filter-bar .search-wrap {
    flex-basis: 100%;
  }
  .filter-bar > select {
    flex: 1;
    width: auto;
  }
  .filter-count {
    display: none;
  }
  .lyrics-layout {
    grid-template-columns: 1fr;
  }
  #fileList {
    max-height: 285px;
  }
  .lyrics-preview,
  .lyrics-editor {
    min-height: 330px;
    padding: 20px;
  }
  .preview-heading {
    padding: 18px;
  }
  .new-key-copy {
    align-items: start;
    flex-wrap: wrap;
  }
  .new-key-copy code {
    flex-basis: 100%;
  }
  .data-table th,
  .data-table td {
    padding: 14px 18px;
  }
  .upstream-row {
    display: block;
  }
  .admin-upstream-actions {
    margin-top: 12px;
  }
  .admin-upstream-list {
    padding: 0 18px;
  }
  .upstream-edit-grid {
    padding: 14px;
    grid-template-columns: 1fr;
  }
  .test-grid {
    grid-template-columns: 1fr;
  }
  .test-grid button {
    justify-self: stretch;
  }
  .collapsible-heading {
    padding: 18px;
  }
  .admin-log-content {
    padding: 18px;
    min-height: 360px;
    max-height: 600px;
    font-size: 11px;
  }
  .login-page {
    display: block;
  }
  .login-visual {
    display: none;
  }
  .login-main {
    min-height: 100vh;
    padding: 68px 28px;
  }
  .login-mobile-brand {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 44px;
    font-size: 18px;
    font-weight: 650;
  }
  .login-mobile-brand img {
    width: 34px;
    height: 34px;
  }
  .icon-button {
    width: 44px;
    height: 44px;
  }
  .nav-item {
    min-height: 48px;
  }
  .primary-button,
  .secondary-button,
  .danger-button {
    min-height: 44px;
  }
  .preview-actions button,
  .admin-upstream-actions button,
  .data-table .actions button {
    min-height: 44px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}

.index-controls { display:flex; flex-wrap:wrap; align-items:center; gap:12px; margin-top:16px; }
.inline-check { display:flex; align-items:center; gap:8px; }
.scope-row { flex-wrap:wrap; }
.secondary-stats { margin-top:20px; margin-bottom:20px; }
.secondary-stat-value { display:block; font-size:23px; margin:12px 0 8px; overflow-wrap:anywhere; }
.stats-table-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:20px; }
.stats-table-grid > .card { min-width:0; margin:0; }
.stats-empty-cell { text-align:center; color:var(--muted); padding:32px !important; }
.numeric-cell { font-variant-numeric:tabular-nums; white-space:nowrap; }
.admin-suggestion-list { padding:0 24px 24px; display:grid; gap:12px; grid-template-columns:repeat(2,minmax(0,1fr)); }
.admin-suggestion-item { padding:16px; border:1px solid var(--border); border-radius:10px; display:flex; flex-direction:column; gap:8px; overflow-wrap:anywhere; }
.admin-suggestion-item small,.admin-suggestion-item span { color:var(--muted); }
@media(max-width:1200px) { .stats-table-grid {grid-template-columns:minmax(0,1fr);} }
@media(max-width:600px) { .admin-suggestion-list {grid-template-columns:minmax(0,1fr);padding:0 16px 16px;} }

.stats-table-grid { margin-bottom:20px; }
body[data-page="stats"] #periodSelect { min-width:136px; }
@media(max-width:600px) {
  body[data-page="stats"] .page-heading { flex-direction:column; gap:16px; }
  body[data-page="stats"] .heading-actions { width:100%; }
  body[data-page="stats"] #periodSelect { flex:1; }
}