:root {
  color-scheme: light;
  --admin-canvas: var(--bg, #f5f5f7);
  --admin-sidebar-bg: rgba(245,245,247,0.72);
  --admin-surface: rgba(255,255,255,0.28);
  --admin-surface-soft: rgba(255,255,255,0.18);
  --admin-glass-blur: saturate(180%) blur(28px);
  --admin-glass-sheen: linear-gradient(180deg, rgba(255,255,255,0.055), rgba(255,255,255,0) 68%);
  --admin-border: rgba(0,0,0,0.022);
  --admin-border-strong: rgba(59,130,246,0.18);
  --admin-hover: rgba(37,99,235,0.08);
  --admin-shadow: 0 10px 28px rgba(0,0,0,0.032), inset 0 1px 0 rgba(255,255,255,0.18);
  --admin-radius: 22px;
  --admin-radius-sm: 16px;
  --admin-ambient-a: rgba(59,130,246,0.16);
  --admin-ambient-b: rgba(56,189,248,0.1);
  --admin-accent: #2563eb;
  --admin-danger: #dc2626;
  --admin-success: #16a34a;
  --admin-warning: #d97706;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --admin-canvas: var(--bg, #050505);
  --admin-sidebar-bg: rgba(5,5,5,0.72);
  --admin-surface: rgba(255,255,255,0.026);
  --admin-surface-soft: rgba(255,255,255,0.018);
  --admin-glass-sheen: linear-gradient(180deg, rgba(255,255,255,0.024), rgba(255,255,255,0) 70%);
  --admin-border: rgba(255,255,255,0.026);
  --admin-border-strong: rgba(96,165,250,0.2);
  --admin-hover: rgba(96,165,250,0.12);
  --admin-shadow: 0 12px 34px rgba(0,0,0,0.14), inset 0 1px 0 rgba(255,255,255,0.025);
  --admin-ambient-a: rgba(59,130,246,0.2);
  --admin-ambient-b: rgba(99,102,241,0.14);
  --admin-accent: #60a5fa;
  --admin-danger: #f87171;
  --admin-success: #4ade80;
  --admin-warning: #fbbf24;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --admin-canvas: var(--bg, #050505);
    --admin-sidebar-bg: rgba(5,5,5,0.72);
    --admin-surface: rgba(255,255,255,0.026);
    --admin-surface-soft: rgba(255,255,255,0.018);
    --admin-glass-sheen: linear-gradient(180deg, rgba(255,255,255,0.024), rgba(255,255,255,0) 70%);
    --admin-border: rgba(255,255,255,0.026);
    --admin-border-strong: rgba(96,165,250,0.2);
    --admin-hover: rgba(96,165,250,0.12);
    --admin-shadow: 0 12px 34px rgba(0,0,0,0.14), inset 0 1px 0 rgba(255,255,255,0.025);
    --admin-ambient-a: rgba(59,130,246,0.2);
    --admin-ambient-b: rgba(99,102,241,0.14);
    --admin-accent: #60a5fa;
    --admin-danger: #f87171;
    --admin-success: #4ade80;
    --admin-warning: #fbbf24;
  }
}

body.admin-body {
  margin: 0;
  min-height: 100vh;
  background: var(--admin-canvas);
  color: var(--text);
}

.admin-shell {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  background: var(--admin-canvas);
  overflow: hidden;
}

.admin-shell::before,
.admin-shell::after {
  content: '';
  position: fixed;
  pointer-events: none;
  z-index: 0;
  filter: blur(72px);
  opacity: 0.75;
}

.admin-shell::before {
  width: 520px;
  height: 520px;
  top: -160px;
  right: -140px;
  background: radial-gradient(circle, var(--admin-ambient-a), transparent 68%);
}

.admin-shell::after {
  width: 460px;
  height: 460px;
  left: 22%;
  bottom: -220px;
  background: radial-gradient(circle, var(--admin-ambient-b), transparent 70%);
}

.admin-sidebar,
.admin-main {
  position: relative;
  z-index: 1;
}

.admin-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px 16px;
  border-right: 1px solid var(--admin-border);
  background: var(--admin-glass-sheen), var(--admin-sidebar-bg);
  backdrop-filter: var(--admin-glass-blur);
  -webkit-backdrop-filter: var(--admin-glass-blur);
}

.admin-brand {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 26px;
}

.admin-brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: var(--admin-radius-sm);
  background: var(--admin-accent);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 12px 24px rgba(37,99,235,0.2);
}

.admin-brand-title {
  font-size: 1.08rem;
  font-weight: 750;
}

.admin-brand-subtitle,
.admin-topbar-label,
.admin-panel-header p,
.admin-meta,
.admin-subtext,
.admin-metric-label,
.admin-metric-footnote,
.admin-item-preview,
.admin-user-subline,
.admin-log-detail {
  color: var(--text-secondary);
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.admin-nav-item {
  width: 100%;
  min-height: 42px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  border-radius: var(--admin-radius-sm);
  padding: 10px 12px;
  text-align: left;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.admin-nav-item:hover,
.admin-nav-item.is-active {
  background: var(--admin-hover);
  border-color: var(--admin-border-strong);
  color: var(--text);
}

.admin-main {
  width: min(100%, 1280px);
  margin: 0 auto;
  padding: 24px;
}

.admin-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--admin-border);
}

.admin-topbar h1,
.admin-panel-header h2,
.admin-metric-value,
.admin-section-title {
  margin: 0;
}

.admin-topbar h1 {
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.2;
}

.admin-topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.admin-operator {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--admin-border);
  background: var(--admin-glass-sheen), var(--admin-surface-soft);
  font-size: 0.88rem;
  white-space: nowrap;
  backdrop-filter: var(--admin-glass-blur);
  -webkit-backdrop-filter: var(--admin-glass-blur);
}

.admin-panel {
  display: none;
}

.admin-panel.is-active {
  display: block;
}

.admin-stack {
  display: grid;
  gap: 14px;
}

.admin-card,
.admin-setting-card {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.admin-empty-card,
.admin-auth-card,
.admin-hero > .admin-card,
.admin-metric,
.admin-list-item,
.admin-log-item,
.admin-user-card,
.admin-setting-toggle {
  border: 1px solid var(--admin-border);
  background: var(--admin-glass-sheen), var(--admin-surface);
  border-radius: var(--admin-radius);
  box-shadow: var(--admin-shadow);
  backdrop-filter: var(--admin-glass-blur);
  -webkit-backdrop-filter: var(--admin-glass-blur);
}

.admin-empty-card,
.admin-auth-card {
  padding: 26px;
  text-align: center;
}

.admin-hero {
  padding: 2px 0;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.75fr);
  gap: 16px;
  align-items: stretch;
}

.admin-hero > div:first-child {
  min-width: 0;
  padding: 4px 0;
}

.admin-hero > .admin-card {
  padding: 18px;
}

.admin-hero-title {
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  line-height: 1.25;
  margin: 10px 0 8px;
}

.admin-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.admin-metric-grid,
.admin-dual-grid,
.admin-triple-grid {
  display: grid;
  gap: 14px;
}

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

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

.admin-triple-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-metric {
  min-height: 118px;
  padding: 16px;
}

.admin-metric-label {
  font-size: 0.85rem;
}

.admin-metric-value {
  font-size: clamp(1.55rem, 2.2vw, 2rem);
  font-weight: 800;
  margin-top: 8px;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.admin-metric-footnote {
  margin-top: 10px;
  font-size: 0.84rem;
}

.admin-card-head,
.admin-list-meta,
.admin-user-meta,
.admin-log-meta,
.admin-inline-filters,
.admin-list-actions,
.admin-setting-row,
.admin-pagination {
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-card-head,
.admin-panel-header,
.admin-list-item,
.admin-user-card,
.admin-log-item {
  justify-content: space-between;
}

.admin-card-head {
  margin-bottom: 10px;
}

.admin-panel-header {
  margin-bottom: 18px;
  display: flex;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--admin-border);
}

.admin-panel-header h2 {
  font-size: 1.25rem;
}

.admin-panel-header p {
  margin: 4px 0 0;
}

.admin-panel-header-wrap {
  flex-wrap: wrap;
}

.admin-inline-filters {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.admin-inline-filters input,
.admin-inline-filters select,
.admin-setting-input,
.admin-setting-textarea {
  min-height: 40px;
  padding: 10px 12px;
  border-radius: var(--admin-radius);
  border: 1px solid var(--admin-border);
  background: var(--admin-glass-sheen), var(--admin-surface);
  color: var(--text);
  outline: none;
  backdrop-filter: var(--admin-glass-blur);
  -webkit-backdrop-filter: var(--admin-glass-blur);
}

.admin-inline-filters input:focus,
.admin-inline-filters select:focus,
.admin-setting-input:focus,
.admin-setting-textarea:focus {
  border-color: var(--admin-border-strong);
  box-shadow: 0 0 0 3px var(--admin-hover);
}

.admin-tab-strip {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-tab {
  min-height: 36px;
  border: 1px solid var(--admin-border);
  background: var(--admin-glass-sheen), var(--admin-surface-soft);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 7px 13px;
  cursor: pointer;
  backdrop-filter: var(--admin-glass-blur);
  -webkit-backdrop-filter: var(--admin-glass-blur);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.admin-tab:hover {
  color: var(--text);
  border-color: var(--admin-border-strong);
}

.admin-tab.is-active {
  color: #fff;
  background: var(--admin-accent);
  border-color: var(--admin-accent);
}

.admin-list-item,
.admin-user-card,
.admin-log-item {
  padding: 15px 16px;
  gap: 14px;
}

.admin-list-item-main,
.admin-user-main,
.admin-log-main {
  min-width: 0;
}

.admin-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-item-title,
.admin-user-name,
.admin-log-action,
.admin-section-title {
  font-weight: 750;
}

.admin-item-preview,
.admin-user-subline,
.admin-log-detail {
  margin-top: 7px;
  word-break: break-word;
}

.admin-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 0.78rem;
  background: rgba(37,99,235,0.12);
  color: var(--admin-accent);
  white-space: nowrap;
}

.admin-badge.warn {
  background: rgba(217,119,6,0.14);
  color: var(--admin-warning);
}

.admin-badge.ok {
  background: rgba(22,163,74,0.14);
  color: var(--admin-success);
}

.admin-badge.danger {
  background: rgba(220,38,38,0.14);
  color: var(--admin-danger);
}

.admin-list-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.admin-link {
  color: var(--admin-accent);
  text-decoration: none;
}

.admin-link:hover {
  text-decoration: underline;
}

.admin-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--admin-border);
}

.admin-user-card {
  align-items: center;
}

.admin-user-left {
  display: flex;
  gap: 12px;
  align-items: center;
  min-width: 0;
}

.admin-setting-card {
  display: grid;
  gap: 16px;
}

.admin-setting-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.admin-setting-grid > div {
  min-width: 0;
}

.admin-setting-input,
.admin-setting-textarea {
  width: 100%;
}

.admin-setting-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 15px;
  gap: 12px;
}

.admin-switch {
  appearance: none;
  width: 46px;
  height: 28px;
  border-radius: 999px;
  background: rgba(148,163,184,0.35);
  position: relative;
  cursor: pointer;
  transition: background 0.2s ease;
  flex: 0 0 auto;
}

.admin-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s ease;
}

.admin-switch:checked {
  background: var(--admin-accent);
}

.admin-switch:checked::after {
  transform: translateX(16px);
}

.admin-setting-textarea {
  min-height: 100px;
  resize: vertical;
}

.admin-danger-text {
  color: var(--admin-danger);
}

.admin-pagination {
  justify-content: flex-end;
  flex-wrap: wrap;
  padding-top: 4px;
}

@media (max-width: 1080px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: relative;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--admin-border);
  }

  .admin-nav {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .admin-main {
    padding: 18px;
  }

  .admin-hero,
  .admin-metric-grid,
  .admin-dual-grid,
  .admin-triple-grid,
  .admin-setting-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .admin-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-topbar,
  .admin-panel-header,
  .admin-user-card,
  .admin-list-item,
  .admin-log-item {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-topbar-actions,
  .admin-inline-filters,
  .admin-list-actions,
  .admin-pagination {
    justify-content: flex-start;
  }

  .admin-inline-filters input,
  .admin-inline-filters select {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .admin-main,
  .admin-sidebar {
    padding: 14px;
  }

  .admin-topbar {
    gap: 12px;
  }

  .admin-empty-card,
  .admin-auth-card,
  .admin-hero > .admin-card,
  .admin-metric,
  .admin-list-item,
  .admin-log-item,
  .admin-user-card,
  .admin-setting-toggle {
    padding: 14px;
  }

  .admin-tab {
    flex: 1 1 calc(50% - 8px);
  }
}