/* ---------- App shell ---------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.app-header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.app-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: var(--text-md);
  color: var(--color-text);
  flex-shrink: 0;
}
.app-brand-mark {
  width: 30px; height: 30px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 13px;
  flex-shrink: 0;
}
.app-brand-logo {
  background: none;
  object-fit: contain;
}
.app-nav {
  display: none;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
}
.app-nav-link {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}
.app-nav-link:hover { background: var(--color-surface-muted); color: var(--color-text); }
.app-nav-link.is-active { color: var(--color-primary); background: var(--color-primary-soft); }
.app-header-actions { display: flex; align-items: center; gap: var(--space-2); margin-left: auto; }
.app-nav-logout { display: none; }
@media (min-width: 900px) { .app-nav-logout { display: inline-flex; } }

.mobile-nav-toggle { display: inline-flex; }
@media (min-width: 900px) {
  .app-nav { display: flex; }
  .mobile-nav-toggle { display: none; }
}

.mobile-nav-panel {
  position: fixed;
  inset: 0;
  z-index: 90;
  visibility: hidden;
}
.mobile-nav-panel.is-open { visibility: visible; }
.mobile-nav-backdrop {
  position: absolute; inset: 0;
  background: rgba(20,18,31,0.5);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-standard);
}
.mobile-nav-panel.is-open .mobile-nav-backdrop { opacity: 1; }
.mobile-nav-sheet {
  position: absolute;
  top: 0; right: 0;
  height: 100%;
  width: min(320px, 84vw);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  transform: translateX(100%);
  transition: transform var(--duration-base) var(--ease-standard);
  padding-top: max(var(--space-5), env(safe-area-inset-top));
  padding-bottom: max(var(--space-5), env(safe-area-inset-bottom));
}
.mobile-nav-panel.is-open .mobile-nav-sheet { transform: translateX(0); }
.mobile-nav-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-4); }
.mobile-nav-link {
  display: flex; align-items: center; gap: var(--space-3);
  min-height: var(--touch-target);
  padding: 0 var(--space-3);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
}
.mobile-nav-link:hover { background: var(--color-surface-muted); }
.mobile-nav-link.is-active { color: var(--color-primary); background: var(--color-primary-soft); }
.mobile-nav-divider { height: 1px; background: var(--color-border); margin: var(--space-3) 0; }

.app-main { padding-block: var(--space-8); min-height: calc(100vh - var(--header-height)); }
.app-footer { padding: var(--space-8) 0; text-align: center; color: var(--color-text-subtle); font-size: var(--text-xs); }

/* ---------- Page header ---------- */
.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.page-header h1 { margin-bottom: var(--space-1); }
.page-header p { color: var(--color-text-muted); font-size: var(--text-sm); }
.page-header-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ---------- Stat tiles ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.stat-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.stat-tile-value { font-size: var(--text-2xl); font-weight: 700; line-height: 1; margin-bottom: var(--space-2); }
.stat-tile-label { font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }

/* ---------- Toolbar / search ---------- */
.toolbar {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}
.search-field { position: relative; flex: 1; min-width: 220px; }
.search-field .field-input { padding-left: var(--space-10); }
.search-icon {
  position: absolute; left: var(--space-3); top: 50%; transform: translateY(-50%);
  width: 18px; height: 18px; color: var(--color-text-subtle); pointer-events: none;
}
.search-clear {
  position: absolute; right: var(--space-2); top: 50%; transform: translateY(-50%);
  width: 32px; height: 32px;
  display: none;
  align-items: center; justify-content: center;
  background: transparent; border: none; border-radius: var(--radius-sm);
  color: var(--color-text-muted); cursor: pointer;
}
.search-clear svg { width: 16px; height: 16px; flex-shrink: 0; }
.search-field.has-value .search-clear { display: inline-flex; }
.search-clear:hover { background: var(--color-surface-muted); }
.search-status { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-2); min-height: 1em; }

.export-all-group { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }
.toolbar-label { font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 600; }

.bulk-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
}
.bulk-toolbar span { font-size: var(--text-sm); font-weight: 600; margin-right: var(--space-1); }
.bulk-toolbar .btn-danger { margin-left: auto; }

.import-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.import-filename {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-select { width: 40px; }

/* ---------- Data table (desktop) ---------- */
.table-wrap { display: none; }
@media (min-width: 860px) {
  .table-wrap {
    display: block;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
  }
}
table.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-muted);
}
.data-table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--color-surface-muted); }
.cell-primary { font-weight: 600; color: var(--color-text); }
.cell-muted { color: var(--color-text-muted); }
.cell-url {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: inline-block;
  vertical-align: middle;
}
.cell-actions { display: flex; gap: var(--space-1); justify-content: flex-end; }

/* ---------- Mobile record cards ---------- */
.record-cards { display: flex; flex-direction: column; gap: var(--space-3); }
@media (min-width: 860px) { .record-cards { display: none; } }
.record-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.record-card-head { display: flex; justify-content: flex-start; align-items: flex-start; gap: var(--space-3); margin-bottom: var(--space-3); }
.record-card-head input[type="checkbox"] { margin-top: 2px; flex-shrink: 0; }
.record-card-title { font-weight: 700; font-size: var(--text-base); margin-bottom: 2px; word-break: break-word; }
.record-card-subtitle { font-size: var(--text-xs); color: var(--color-text-muted); }
.record-card-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  padding-top: var(--space-3);
  margin-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}
.record-card-meta-item .label { font-size: var(--text-xs); color: var(--color-text-subtle); margin-bottom: 2px; }
.record-card-meta-item .value { font-size: var(--text-sm); font-weight: 600; word-break: break-word; }
.record-card-badges { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-3); }
.record-card-actions { display: flex; gap: var(--space-2); margin-top: var(--space-4); }
.record-card-actions .btn:not(.btn-icon) { flex: 1; }
.record-card-actions .btn-icon { flex-shrink: 0; }

/* ---------- Pagination ---------- */
.pagination { display: flex; align-items: center; justify-content: center; gap: var(--space-1); margin-top: var(--space-6); flex-wrap: wrap; }
.pagination button {
  min-width: var(--touch-target); min-height: var(--touch-target);
  border-radius: var(--radius-md); border: 1px solid var(--color-border);
  background: var(--color-surface); color: var(--color-text); cursor: pointer;
  font-size: var(--text-sm); font-weight: 600;
}
.pagination button:hover:not(:disabled) { background: var(--color-surface-muted); }
.pagination button.is-active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination-info { font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 600; margin-right: var(--space-2); }

/* ---------- Auth pages (login) ---------- */
.auth-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background: var(--color-bg);
}
.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: var(--space-8) var(--space-6);
}
.auth-brand { display: flex; flex-direction: column; align-items: center; gap: var(--space-3); margin-bottom: var(--space-6); text-align: center; }
.auth-brand-mark {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 20px;
}
.auth-brand-logo { background: none; object-fit: contain; }
.auth-brand h1 { font-size: var(--text-lg); }
.auth-brand p { font-size: var(--text-sm); color: var(--color-text-muted); }
.auth-footer { text-align: center; margin-top: var(--space-6); font-size: var(--text-xs); color: var(--color-text-subtle); }

/* ---------- Forms page (create/edit) ---------- */
.form-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 720px;
}
.form-row { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
@media (min-width: 520px) { .form-row { grid-template-columns: 1fr 1fr; } }
.fieldset { border: none; padding: 0; margin: 0; }
.fieldset-legend { font-size: var(--text-sm); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-1); display: block; }
.fieldset-desc { font-size: var(--text-xs); color: var(--color-text-muted); margin-bottom: var(--space-4); }
/* No margin-top here: the preceding .field already contributes margin-bottom,
   and margins don't collapse across the intervening block — adding both
   stacked additively into an oversized gap before the divider. */
.form-section + .form-section { padding-top: var(--space-6); border-top: 1px solid var(--color-border); }
.form-actions { display: flex; gap: var(--space-3); margin-top: var(--space-6); }

.disclosure { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.disclosure-trigger {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  min-height: var(--touch-target);
  padding: var(--space-4);
  background: var(--color-surface-muted);
  border: none; cursor: pointer;
  font-weight: 600; font-size: var(--text-sm); color: var(--color-text);
  list-style: none;
}
.disclosure-trigger::-webkit-details-marker { display: none; }
.disclosure-trigger::marker { content: ''; }
.disclosure-trigger svg { width: 12px; height: 8px; flex-shrink: 0; transition: transform var(--duration-fast) var(--ease-standard); }
.disclosure[open] .disclosure-trigger svg { transform: rotate(180deg); }
.disclosure-body { padding: var(--space-5); }

/* ---------- Advertisement list ---------- */
.ad-type-icon { width: 32px; height: 32px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ad-type-icon.banner { background: var(--color-info-soft); color: var(--color-info); }
.ad-type-icon.popup { background: var(--color-primary-soft); color: var(--color-primary); }
.ad-thumb { width: 40px; height: 40px; border-radius: var(--radius-sm); object-fit: cover; border: 1px solid var(--color-border); }

/* ---------- Utility ---------- */
.stack-sm > * + * { margin-top: var(--space-2); }
.stack-md > * + * { margin-top: var(--space-4); }
.hidden { display: none !important; }