/* admin/static/css/components.css
   Reusable UI components. BEM-lite: .block, .block__el, .block--mod.
   State classes prefixed .is-. Icons drawn from static/icons/sprite.svg. */

/* ==========================================================================
   Sidebar
   ========================================================================== */
.sidebar {
  grid-area: sidebar;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  position: sticky; top: 0;
  height: 100vh;
  z-index: var(--z-sidebar);
}
.sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-4);
  height: var(--topbar-height);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-md);
  flex-shrink: 0;
}
.sidebar__brand:hover { text-decoration: none; color: var(--text-primary); }
.sidebar__brand-mark {
  width: 28px; height: 28px;
  background: var(--accent-primary); border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-on-accent); font-weight: var(--fw-bold);
  flex-shrink: 0;
}
.sidebar__nav {
  flex: 1;
  padding: var(--space-3) var(--space-2);
  display: flex; flex-direction: column; gap: var(--space-4);
}
.sidebar__section-label {
  padding: 0 var(--space-3);
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}
.sidebar__section { display: flex; flex-direction: column; gap: 2px; }
.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  position: relative;
  transition: background var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
  white-space: nowrap;
}
.sidebar__link:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
  text-decoration: none;
}
.sidebar__link.is-active {
  background: var(--bg-elevated);
  color: var(--text-primary);
}
.sidebar__link.is-active::before {
  content: "";
  position: absolute;
  left: -2px; top: 6px; bottom: 6px;
  width: 3px; border-radius: 2px;
  background: var(--accent-primary);
}
.sidebar__link .icon { color: var(--text-muted); }
.sidebar__link.is-active .icon,
.sidebar__link:hover .icon { color: var(--text-primary); }

.sidebar__footer {
  padding: var(--space-3);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  flex-shrink: 0;
}
.sidebar__collapse {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  transition: background var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
}
.sidebar__collapse:hover { background: var(--surface-hover); color: var(--text-primary); }

/* Collapsed state: hide labels and section headers, keep icons. */
.app-shell.is-sidebar-collapsed .sidebar__brand span,
.app-shell.is-sidebar-collapsed .sidebar__link span,
.app-shell.is-sidebar-collapsed .sidebar__section-label {
  display: none;
}
.app-shell.is-sidebar-collapsed .sidebar__link {
  justify-content: center;
  padding: var(--space-2);
}
.app-shell.is-sidebar-collapsed .sidebar__brand { justify-content: center; padding: 0; }
.app-shell.is-sidebar-collapsed .sidebar__footer { justify-content: center; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  line-height: 1.2;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}
.btn:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
  color: var(--text-primary);
  text-decoration: none;
}
.btn:focus-visible { outline: none; box-shadow: var(--shadow-focus-ring); }
.btn:disabled,
.btn.is-disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

.btn--primary {
  background: var(--accent-primary);
  color: var(--text-on-accent);
  border-color: transparent;
}
.btn--primary:hover { background: var(--accent-primary-hover); color: var(--text-on-accent); }

.btn--danger {
  background: var(--status-danger);
  color: var(--text-on-accent);
  border-color: transparent;
}
.btn--danger:hover { background: #d63a35; color: var(--text-on-accent); }
.btn--danger:focus-visible { box-shadow: var(--shadow-danger-ring); }

.btn--success {
  background: var(--status-success);
  color: var(--text-on-accent);
  border-color: transparent;
}
.btn--success:hover { background: #2ea043; color: var(--text-on-accent); }

.btn--ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
}
.btn--ghost:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
  border-color: transparent;
}

.btn--sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--fs-xs);
}
.btn--icon {
  padding: var(--space-2);
  aspect-ratio: 1;
  justify-content: center;
}
.btn--icon.btn--sm { padding: 4px; }

.btn.is-loading { pointer-events: none; position: relative; color: transparent !important; }
.btn.is-loading::after {
  content: "";
  position: absolute; inset: 0;
  margin: auto; width: 1em; height: 1em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  color: var(--text-primary);
  animation: btn-spin var(--duration-slow) linear infinite;
}
.btn--primary.is-loading::after,
.btn--danger.is-loading::after,
.btn--success.is-loading::after { color: var(--text-on-accent); }

@keyframes btn-spin { to { transform: rotate(360deg); } }

/* ==========================================================================
   Badges + chips
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-2);
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  line-height: 1.4;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  white-space: nowrap;
}
.badge--success { background: var(--status-success-bg); color: var(--status-success); border-color: transparent; }
.badge--warning { background: var(--status-warning-bg); color: var(--status-warning); border-color: transparent; }
.badge--danger  { background: var(--status-danger-bg);  color: var(--status-danger);  border-color: transparent; }
.badge--info    { background: var(--status-info-bg);    color: var(--status-info);    border-color: transparent; }
.badge--neutral { background: var(--bg-elevated); color: var(--text-secondary); }
.badge--tier-free    { background: var(--bg-elevated); color: var(--text-secondary); }
.badge--tier-starter { background: var(--status-info-bg); color: var(--status-info); border-color: transparent; }
.badge--tier-pro     { background: #2d1c4a; color: #b392f0; border-color: transparent; }
.badge--booster      { background: #2d1c4a; color: #f47fff; border-color: transparent; }
.badge--dot::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
  display: inline-block;
  margin-right: 2px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
  white-space: nowrap;
}
.chip:hover { background: var(--surface-hover); color: var(--text-primary); }
.chip.is-active {
  background: var(--accent-primary);
  color: var(--text-on-accent);
  border-color: transparent;
}
.chip.is-active:hover { background: var(--accent-primary-hover); }
.chip__count {
  padding: 0 var(--space-2);
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
}
.chip:not(.is-active) .chip__count {
  background: var(--bg-canvas);
  color: var(--text-secondary);
}
.chip--remove {
  background: none; border: none; color: inherit; opacity: 0.6;
  padding: 0; display: inline-flex; align-items: center;
}
.chip--remove:hover { opacity: 1; }

/* ==========================================================================
   Cards + stat cards
   ========================================================================== */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
}
.card--interactive {
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-standard),
              background var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}
.card--interactive:hover {
  border-color: var(--border-strong);
  background: var(--bg-elevated);
  transform: translateY(-1px);
  text-decoration: none;
}

.stat-card {
  display: flex; flex-direction: column; gap: var(--space-1);
  padding: var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}
.stat-card__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-card__value {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}
.stat-card__value--success { color: var(--status-success); }
.stat-card__value--warning { color: var(--status-warning); }
.stat-card__value--danger  { color: var(--status-danger); }
.stat-card__value--accent  { color: var(--accent-primary); }
.stat-card__delta { font-size: var(--fs-xs); color: var(--text-muted); }
.stat-card__delta--up   { color: var(--status-success); }
.stat-card__delta--down { color: var(--status-danger); }
.stat-card__spark { margin-top: var(--space-2); height: 40px; }

.stats-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ==========================================================================
   Avatars
   ========================================================================== */
.avatar {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; overflow: hidden;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-weight: var(--fw-semibold);
  flex-shrink: 0;
  font-size: var(--fs-sm);
}
.avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.avatar--sm { width: 24px; height: 24px; font-size: var(--fs-xs); }
.avatar--md { width: 40px; height: 40px; font-size: var(--fs-md); }
.avatar--lg { width: 64px; height: 64px; font-size: var(--fs-xl); }
.avatar--xl { width: 96px; height: 96px; font-size: var(--fs-3xl); }
.avatar--placeholder { background: linear-gradient(135deg, var(--accent-primary), var(--accent-brand)); color: var(--text-on-accent); }
.avatar--squircle { border-radius: var(--radius-lg); }

/* ==========================================================================
   Data table
   ========================================================================== */
.data-table-wrap {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.data-table-wrap__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}
.data-table-scroll { overflow-x: auto; }
.data-table {
  width: 100%;
  font-size: var(--fs-sm);
  border-collapse: collapse;
}
.data-table th,
.data-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--border-subtle);
}
.data-table thead th {
  position: sticky; top: 0; z-index: var(--z-sticky);
  background: var(--bg-elevated);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  user-select: none;
}
.data-table--zebra tbody tr:nth-child(even) { background: rgba(255, 255, 255, 0.015); }
.data-table--compact th,
.data-table--compact td { padding: var(--space-2) var(--space-3); }

.data-table tbody tr {
  transition: background var(--duration-fast) var(--ease-standard);
}
.data-table tbody tr:hover { background: var(--surface-hover); }
.data-table tbody tr.is-clickable { cursor: pointer; }
.data-table tbody tr:last-child td { border-bottom: none; }

.data-table__sort-btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  color: inherit; font: inherit; text-transform: inherit; letter-spacing: inherit;
  padding: 0;
}
.data-table__sort-btn:hover { color: var(--text-primary); }
.data-table__sort-btn .icon { opacity: 0.5; }
.data-table th.is-sorted-asc .data-table__sort-btn,
.data-table th.is-sorted-desc .data-table__sort-btn {
  color: var(--text-primary);
}
.data-table th.is-sorted-asc .data-table__sort-btn .icon,
.data-table th.is-sorted-desc .data-table__sort-btn .icon { opacity: 1; }

.data-table__cell-action {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  transition: background var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
}
.data-table__cell-action:hover { background: var(--surface-hover); color: var(--text-primary); }
.data-table__cell-action--danger:hover { color: var(--status-danger); }

.data-table__cell-actions {
  display: inline-flex; align-items: center; gap: var(--space-1);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-standard);
}
.data-table tbody tr:hover .data-table__cell-actions,
.data-table tbody tr:focus-within .data-table__cell-actions { opacity: 1; }

.data-table__chevron {
  display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px;
  color: var(--text-muted);
  transition: transform var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
}
.data-table tbody tr.is-expanded .data-table__chevron {
  transform: rotate(90deg);
  color: var(--text-primary);
}
.data-table__detail-row td {
  padding: 0;
  background: var(--bg-sunken);
  border-bottom: 1px solid var(--border-subtle);
}
.data-table__detail-panel {
  padding: var(--space-5);
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ==========================================================================
   Form controls
   ========================================================================== */
.form-field { display: flex; flex-direction: column; gap: var(--space-1); }
.form-field__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-field__hint { font-size: var(--fs-xs); color: var(--text-muted); }
.form-field__error { font-size: var(--fs-xs); color: var(--status-danger); }

.input,
.select,
.textarea {
  padding: var(--space-2) var(--space-3);
  background: var(--bg-sunken);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  min-width: 0;
  transition: border-color var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard);
}
.input:hover,
.select:hover,
.textarea:hover { border-color: var(--border-strong); }
.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: var(--shadow-focus-ring);
}
.input:disabled,
.select:disabled,
.textarea:disabled { opacity: 0.5; cursor: not-allowed; }
.input.is-invalid,
.select.is-invalid,
.textarea.is-invalid { border-color: var(--status-danger); }
.select {
  appearance: none;
  padding-right: var(--space-6);
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b949e' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-2) center;
}
.input--sm,
.select--sm { padding: var(--space-1) var(--space-2); font-size: var(--fs-xs); }
.select--sm { padding-right: var(--space-5); }

/* ==========================================================================
   Inline edit
   ========================================================================== */
.inline-edit { display: inline-flex; align-items: center; gap: var(--space-2); }
.inline-edit__value { display: inline-flex; align-items: center; gap: var(--space-2); }
.inline-edit__editor { display: none; align-items: center; gap: var(--space-1); }
.inline-edit.is-editing .inline-edit__value { display: none; }
.inline-edit.is-editing .inline-edit__editor { display: inline-flex; }
.inline-edit.is-saving .inline-edit__editor { opacity: 0.5; pointer-events: none; }

/* ==========================================================================
   Progress bar
   ========================================================================== */
.progress {
  width: 100%;
  height: 8px;
  background: var(--bg-sunken);
  border-radius: var(--radius-pill);
  overflow: hidden;
  position: relative;
}
.progress__fill {
  height: 100%;
  background: var(--accent-primary);
  border-radius: inherit;
  transition: width var(--duration-slow) var(--ease-standard);
}
.progress__fill--ok     { background: var(--status-success); }
.progress__fill--warn   { background: var(--status-warning); }
.progress__fill--danger { background: var(--status-danger); }
.progress--sm { height: 4px; }
.progress--lg { height: 12px; }
.progress__ghost {
  position: absolute; inset: 0;
  border: 1px dashed var(--border-strong);
  border-radius: inherit;
  pointer-events: none;
}

/* ==========================================================================
   Tabs
   ========================================================================== */
.tabs {
  display: inline-flex;
  align-items: center;
  background: var(--bg-elevated);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}
.tab {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  transition: background var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
}
.tab:hover { color: var(--text-primary); text-decoration: none; }
.tab.is-active {
  background: var(--bg-canvas);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Breadcrumb
   ========================================================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  flex-wrap: wrap;
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: var(--space-2); }
.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--text-muted);
  opacity: 0.5;
}
.breadcrumb__link { color: var(--text-secondary); }
.breadcrumb__link:hover { color: var(--text-primary); }
.breadcrumb__current { color: var(--text-primary); font-weight: var(--fw-medium); }

/* ==========================================================================
   Empty state + loading skeleton
   ========================================================================== */
.empty-state {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: var(--space-3);
  padding: var(--space-8) var(--space-4);
  color: var(--text-secondary);
}
.empty-state__icon { color: var(--text-muted); }
.empty-state__title { font-size: var(--fs-md); font-weight: var(--fw-semibold); color: var(--text-primary); }
.empty-state__body { max-width: 420px; }
.empty-state__actions { margin-top: var(--space-3); display: flex; gap: var(--space-2); }

.loading-skeleton {
  background: linear-gradient(90deg,
    var(--bg-elevated) 0%,
    var(--surface-hover) 40%,
    var(--bg-elevated) 80%);
  background-size: 400% 100%;
  animation: skeleton-shimmer 1.4s ease-in-out infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-shimmer {
  0%   { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}
.loading-skeleton--row { height: 40px; margin-bottom: var(--space-2); }

/* ==========================================================================
   Modal
   ========================================================================== */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: var(--z-modal-backdrop);
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-standard);
}
.modal-backdrop.is-open { opacity: 1; }
.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-modal);
  max-width: 100%;
  width: 480px;
  max-height: calc(100vh - var(--space-6));
  display: flex; flex-direction: column;
  transform: scale(0.96);
  transition: transform var(--duration-fast) var(--ease-emphasized);
}
.modal-backdrop.is-open .modal { transform: scale(1); }
.modal--md { width: 640px; }
.modal--lg { width: 960px; }
.modal__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
}
.modal__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
}
.modal__close {
  color: var(--text-muted);
  padding: var(--space-1);
  border-radius: var(--radius-md);
}
.modal__close:hover { background: var(--surface-hover); color: var(--text-primary); }
.modal__body {
  padding: var(--space-5);
  overflow-y: auto;
  color: var(--text-secondary);
}
.modal__body strong { color: var(--text-primary); }
.modal__footer {
  display: flex; justify-content: flex-end; gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Side sheet (advanced filters)
   ========================================================================== */
.side-sheet-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-side-sheet);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-standard);
}
.side-sheet-backdrop.is-open { opacity: 1; }
.side-sheet {
  position: fixed; right: 0; top: 0; bottom: 0;
  width: 360px; max-width: 100vw;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-subtle);
  z-index: calc(var(--z-side-sheet) + 1);
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--duration-base) var(--ease-emphasized);
}
.side-sheet.is-open { transform: translateX(0); }
.side-sheet__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
}
.side-sheet__body { flex: 1; overflow-y: auto; padding: var(--space-5); }
.side-sheet__footer {
  display: flex; justify-content: flex-end; gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Toast
   ========================================================================== */
.toast-root {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: var(--z-toast);
  display: flex; flex-direction: column; gap: var(--space-2);
  pointer-events: none;
}
.toast {
  min-width: 280px; max-width: 400px;
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--text-muted);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  pointer-events: auto;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity var(--duration-base) var(--ease-standard),
              transform var(--duration-base) var(--ease-emphasized);
}
.toast.is-open { opacity: 1; transform: translateX(0); }
.toast--success { border-left-color: var(--status-success); }
.toast--warning { border-left-color: var(--status-warning); }
.toast--danger  { border-left-color: var(--status-danger); }
.toast--info    { border-left-color: var(--status-info); }
.toast__body    { flex: 1; min-width: 0; }
.toast__title   { font-weight: var(--fw-semibold); }
.toast__message { color: var(--text-secondary); font-size: var(--fs-xs); margin-top: 2px; }
.toast__actions { display: flex; align-items: center; gap: var(--space-2); margin-top: var(--space-2); }
.toast__close {
  color: var(--text-muted);
  padding: 2px;
  border-radius: var(--radius-sm);
  align-self: flex-start;
}
.toast__close:hover { color: var(--text-primary); background: var(--surface-hover); }

/* ==========================================================================
   Menu (kebab dropdown)
   ========================================================================== */
.menu {
  position: absolute;
  min-width: 180px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-1);
  z-index: var(--z-dropdown);
  display: flex; flex-direction: column;
}
.menu__item {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  cursor: pointer;
  white-space: nowrap;
}
.menu__item:hover { background: var(--surface-hover); text-decoration: none; }
.menu__item--danger { color: var(--status-danger); }
.menu__separator { border-top: 1px solid var(--border-subtle); margin: var(--space-1) 0; }

/* ==========================================================================
   Charts — sparkline, bars, heatmap. All inline SVG, use CSS vars for color.
   ========================================================================== */
.sparkline {
  width: 100%;
  height: 40px;
  display: block;
  color: var(--accent-primary);
}
.sparkline__stroke {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sparkline__area {
  fill: currentColor;
  fill-opacity: 0.12;
  stroke: none;
}
.sparkline__baseline {
  stroke: var(--border-subtle);
  stroke-width: 1;
  stroke-dasharray: 2 3;
}

/* Bar + line chart shared surface */
.chart {
  width: 100%;
  display: block;
  color: var(--accent-primary);
}
.chart--md { height: 180px; }
.chart--lg { height: 280px; }
.chart__bar {
  fill: currentColor;
  fill-opacity: 0.75;
  transition: fill-opacity var(--duration-fast) var(--ease-standard);
}
.chart__bar:hover { fill-opacity: 1; }
.chart__bar--empty { fill: var(--border-subtle); fill-opacity: 0.4; }
.chart__gridline {
  stroke: var(--border-subtle);
  stroke-width: 1;
  stroke-dasharray: 2 3;
  opacity: 0.6;
}
.chart__axis-label {
  fill: var(--text-muted);
  font-size: 10px;
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
}

/* Heatmap */
.chart__heatmap-cell {
  stroke: var(--bg-surface);
  stroke-width: 1;
  transition: filter var(--duration-fast) var(--ease-standard);
}
.chart__heatmap-cell:hover { filter: brightness(1.4); cursor: pointer; }

.chart-legend {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-xs); color: var(--text-muted);
}
.chart-legend__ramp {
  display: inline-block; width: 100px; height: 8px; border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--bg-elevated), rgba(88,166,255,0.9));
}

/* KPI stat card with delta (used in fleet activity dashboard) */
.kpi-card {
  display: flex; flex-direction: column; gap: var(--space-1);
  padding: var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}
.kpi-card__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.kpi-card__value {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.kpi-card__meta {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  min-height: 1.2em;
}
.kpi-card__delta {
  display: inline-flex; align-items: center; gap: 2px;
  padding: 1px var(--space-2);
  border-radius: var(--radius-pill);
  font-weight: var(--fw-semibold);
  background: var(--bg-elevated);
}
.kpi-card__delta--up   { color: var(--status-success); background: var(--status-success-bg); }
.kpi-card__delta--down { color: var(--status-danger);  background: var(--status-danger-bg); }
.kpi-card__delta--flat { color: var(--text-muted); }
.kpi-card__sub { color: var(--text-muted); font-size: var(--fs-xs); }
.kpi-card__spark {
  margin-top: var(--space-2);
  height: 32px;
  opacity: 0.85;
}

/* Leaderboard (top-N with mini sparkline) */
.leaderboard { display: flex; flex-direction: column; gap: var(--space-2); }
.leaderboard__row {
  display: grid;
  grid-template-columns: 32px 1fr auto 120px;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: background var(--duration-fast) var(--ease-standard);
}
.leaderboard__row:hover { background: var(--surface-hover); text-decoration: none; color: var(--text-primary); }
.leaderboard__rank {
  font-variant-numeric: tabular-nums;
  font-weight: var(--fw-semibold);
  color: var(--text-muted);
  text-align: center;
  font-size: var(--fs-sm);
}
.leaderboard__name {
  font-weight: var(--fw-medium);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  min-width: 0;
}
.leaderboard__value {
  font-variant-numeric: tabular-nums;
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
}
.leaderboard__spark { height: 32px; opacity: 0.7; }

/* ==========================================================================
   Usage provenance (tiers page + guild detail)
   ========================================================================== */
.provenance {
  display: flex; flex-direction: column; gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-sunken);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
}
.provenance__row {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3);
}
.provenance__label { color: var(--text-secondary); display: inline-flex; align-items: center; gap: var(--space-2); }
.provenance__value { color: var(--text-primary); font-variant-numeric: tabular-nums; font-weight: var(--fw-medium); }
.provenance__total { border-top: 1px dashed var(--border-subtle); padding-top: var(--space-2); }
.provenance__total .provenance__value { font-weight: var(--fw-semibold); }
.provenance__hint {
  color: var(--text-muted);
  font-size: var(--fs-xs);
  cursor: help;
}

/* ==========================================================================
   Definition list (used in detail pages)
   ========================================================================== */
.dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  column-gap: var(--space-5);
  row-gap: var(--space-2);
  font-size: var(--fs-sm);
}
.dl dt { color: var(--text-muted); font-weight: var(--fw-medium); }
.dl dd { color: var(--text-primary); }

/* ==========================================================================
   Sync indicator + AsyncButton spinner in-line (topbar)
   ========================================================================== */
.sync-indicator {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-xs); color: var(--text-muted);
}
.sync-indicator .icon { color: var(--text-muted); }
.sync-indicator.is-syncing .icon { animation: btn-spin var(--duration-slow) linear infinite; color: var(--accent-primary); }