/* ==========================================================================
   PP社区独立管理后台 — 黑白自适应极简风格 (基于 pp-ui.css 变量扩展)
   ========================================================================== */

:root,
[data-theme="light"] {
  --ink-solid: #0F1419;
  --ink-solid-fg: #FFFFFF;
  --ink-muted: #525252;
  --chart-bar: #0F1419;
  --chart-bar-soft: #D4D4D4;
  --chip-bg: #F4F4F5;
  --chip-active-bg: #0F1419;
  --chip-active-fg: #FFFFFF;
}

[data-theme="dark"] {
  --ink-solid: #F5F5F5;
  --ink-solid-fg: #000000;
  --ink-muted: #A3A3A3;
  --chart-bar: #F5F5F5;
  --chart-bar-soft: #333333;
  --chip-bg: #1F1F1F;
  --chip-active-bg: #F5F5F5;
  --chip-active-fg: #000000;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.num, .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* App Shell */
.ppa-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
}

.ppa-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-hairline);
  background: var(--bg-surface);
  padding: 18px 14px;
  z-index: var(--z-sidebar);
}

.ppa-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 18px;
  border-bottom: 1px solid var(--border-hairline);
  margin-bottom: 14px;
}

.ppa-brand img {
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-strong);
  object-fit: cover;
}

.ppa-brand-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.ppa-brand-sub {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
}

.ppa-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.ppa-nav-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-out);
}

.ppa-nav-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.ppa-nav-btn.is-active {
  background: var(--ink-solid);
  color: var(--ink-solid-fg);
  font-weight: 600;
}

.ppa-nav-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.ppa-nav-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 1px 7px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  background: var(--bg-canvas);
}

.ppa-nav-btn.is-active .ppa-nav-badge {
  border-color: currentColor;
  background: transparent;
  color: var(--ink-solid-fg);
}

.ppa-sidebar-foot {
  border-top: 1px solid var(--border-hairline);
  padding-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ppa-side-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-hairline);
  background: var(--bg-canvas);
  color: var(--text-secondary);
  font-size: 12px;
  text-decoration: none;
  cursor: pointer;
}

.ppa-side-link:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

/* Main Workspace */
.ppa-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.ppa-topbar {
  position: sticky;
  top: 0;
  z-index: var(--z-topbar);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: var(--topbar-h);
  padding: 0 24px;
  background: var(--bg-canvas);
  border-bottom: 1px solid var(--border-hairline);
}

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

.ppa-page-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.ppa-page-sub {
  font-size: 12px;
  color: var(--text-tertiary);
}

.ppa-topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ppa-user-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: var(--r-pill, 999px);
  border: 1px solid var(--border-strong);
  background: var(--chip-bg);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
}

.ppa-user-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.ppa-menu-btn {
  display: none;
}

.ppa-content {
  padding: 24px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.ppa-view[hidden] {
  display: none !important;
}

/* Buttons & Inputs */
.ppa-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease-out), opacity var(--t-fast) var(--ease-out);
}

.ppa-btn:hover { background: var(--bg-hover); }
.ppa-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.ppa-btn-primary {
  background: var(--ink-solid);
  color: var(--ink-solid-fg);
  border-color: var(--ink-solid);
}
.ppa-btn-primary:hover { opacity: 0.88; background: var(--ink-solid); }

.ppa-btn-danger {
  color: var(--danger);
  border-color: var(--danger);
  background: transparent;
}
.ppa-btn-danger:hover { background: var(--danger-soft); }

.ppa-btn-sm {
  height: 28px;
  padding: 0 10px;
  font-size: 12px;
}

.ppa-input, .ppa-select, .ppa-textarea {
  height: 34px;
  padding: 0 10px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-canvas);
  color: var(--text-primary);
  font-size: 13px;
  font-family: inherit;
  outline: none;
}

.ppa-textarea {
  height: auto;
  min-height: 84px;
  padding: 10px;
  width: 100%;
  resize: vertical;
}

.ppa-input:focus, .ppa-select:focus, .ppa-textarea:focus {
  border-color: var(--ink-solid);
}

/* Segmented Controls & Tabs */
.ppa-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.ppa-segmented {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  background: var(--bg-surface);
  gap: 2px;
}

.ppa-seg-btn {
  height: 28px;
  padding: 0 12px;
  border: none;
  border-radius: var(--r-xs);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.ppa-seg-btn.is-active {
  background: var(--chip-active-bg);
  color: var(--chip-active-fg);
}

/* Banner & Strip */
.ppa-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  background: var(--bg-surface);
  margin-bottom: 18px;
  font-size: 13px;
  color: var(--text-secondary);
}

.ppa-queue-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}

.ppa-queue-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-md);
  background: var(--bg-surface);
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease-out);
}

.ppa-queue-card:hover {
  border-color: var(--ink-solid);
}

.ppa-queue-card.has-pending {
  border-color: var(--ink-solid);
}

.ppa-queue-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.ppa-queue-value {
  font-size: 20px;
  font-weight: 700;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* KPI Grid */
.ppa-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.ppa-kpi-card {
  padding: 16px 18px;
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-md);
  background: var(--bg-surface);
}

.ppa-kpi-kicker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.ppa-kpi-val {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
}

.ppa-kpi-sub {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-tertiary);
}

/* Panels & Grid */
.ppa-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.ppa-panel {
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-md);
  background: var(--bg-surface);
  overflow: hidden;
  margin-bottom: 20px;
}

.ppa-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-hairline);
}

.ppa-panel-title {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
}

.ppa-panel-body {
  padding: 18px;
}

/* Monochrome Trend Chart */
.ppa-chart-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ppa-chart-bars {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(14px, 1fr);
  align-items: end;
  gap: 6px;
  height: 170px;
  padding: 10px 4px 0;
  border-bottom: 1px solid var(--border-strong);
}

.ppa-bar-col {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  gap: 4px;
  position: relative;
}

.ppa-bar-fill {
  width: 100%;
  max-width: 28px;
  min-height: 2px;
  background: var(--chart-bar);
  border-radius: 3px 3px 0 0;
  transition: height var(--t-base) var(--ease-out);
}

.ppa-bar-col.is-zero .ppa-bar-fill {
  background: var(--chart-bar-soft);
}

.ppa-bar-val {
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
}

.ppa-chart-labels {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(14px, 1fr);
  gap: 6px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  text-align: center;
}

/* Tables */
.ppa-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.ppa-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.ppa-table th {
  text-align: left;
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-hairline);
  white-space: nowrap;
}

.ppa-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-hairline);
  vertical-align: middle;
}

.ppa-table tbody tr:hover {
  background: var(--bg-hover);
}

.ppa-table .is-right {
  text-align: right;
}

.ppa-rank-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--r-xs);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.ppa-rank-pill.is-top {
  background: var(--ink-solid);
  color: var(--ink-solid-fg);
  border-color: var(--ink-solid);
}

.ppa-role-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 180px;
}

.ppa-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-strong);
  object-fit: cover;
  background: var(--bg-muted);
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
}

.ppa-meter {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.ppa-meter-track {
  width: 72px;
  height: 6px;
  border-radius: var(--r-pill);
  background: var(--border-hairline);
  overflow: hidden;
}

.ppa-meter-fill {
  height: 100%;
  background: var(--ink-solid);
}

/* Badges / Tags */
.ppa-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border-strong);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.ppa-tag.is-solid {
  background: var(--ink-solid);
  color: var(--ink-solid-fg);
  border-color: var(--ink-solid);
}

.ppa-tag.is-danger {
  color: var(--danger);
  border-color: var(--danger);
}

.ppa-tag.is-warn {
  color: var(--warning);
  border-color: var(--warning);
}

.ppa-tag.is-ok {
  color: var(--success);
  border-color: var(--success);
}

/* Metrics Rows */
.ppa-stat-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ppa-stat-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-sm);
  background: var(--bg-canvas);
}

.ppa-stat-row .k { font-size: 13px; color: var(--text-secondary); }
.ppa-stat-row .v { font-size: 14px; font-weight: 700; font-family: var(--font-mono); }

/* Submission Review Workbench */
.ppa-workbench {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.ppa-sub-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ppa-sub-item {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-md);
  background: var(--bg-surface);
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
}

.ppa-sub-item:hover { border-color: var(--border-strong); }
.ppa-sub-item.is-active {
  border-color: var(--ink-solid);
  box-shadow: inset 3px 0 0 var(--ink-solid);
}

.ppa-media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(112px, 1fr));
  gap: 10px;
}

.ppa-media-tile {
  position: relative;
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--bg-canvas);
  cursor: pointer;
}

.ppa-media-tile.is-viewed {
  border-color: var(--ink-solid);
}

.ppa-media-tile img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.ppa-media-cap {
  padding: 4px 8px;
  font-size: 11px;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
}

.ppa-pre {
  margin: 0;
  padding: 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-hairline);
  background: var(--bg-canvas);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 360px;
  overflow: auto;
}

/* Pagination & Empty State */
.ppa-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-top: 1px solid var(--border-hairline);
  font-size: 12px;
  color: var(--text-secondary);
}

.ppa-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 13px;
}

.ppa-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* Modal */
dialog.ppa-dialog {
  width: 480px;
  max-width: calc(100vw - 24px);
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-modal);
}

dialog.ppa-dialog::backdrop {
  background: var(--bg-backdrop);
}

.ppa-dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-hairline);
}

.ppa-dialog-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.ppa-dialog-body {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ppa-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.ppa-field .ppa-input {
  width: 100%;
}

.ppa-dialog-foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--border-hairline);
}

/* Mobile Responsive */
@media (max-width: 1080px) {
  .ppa-kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ppa-queue-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .ppa-grid-2 { grid-template-columns: 1fr; }
  .ppa-workbench { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .ppa-shell { grid-template-columns: 1fr; }
  .ppa-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 250px;
    transform: translateX(-100%);
    transition: transform var(--t-base) var(--ease-out);
  }
  body.ppa-drawer-open .ppa-sidebar {
    transform: translateX(0);
    box-shadow: var(--shadow-modal);
  }
  .ppa-menu-btn { display: inline-flex; }
  .ppa-content { padding: 16px; }
  .ppa-queue-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}