:root {
  --bg: #f6f4f0;
  --surface: #ffffff;
  --text: #1c1917;
  --muted: #57534e;
  --line: #e7e5e4;
  --focus: #1d4ed8;
  --critical: #b42318;
  --critical-bg: #fef3f2;
  --warning: #b54708;
  --warning-bg: #fffaeb;
  --review: #6941c6;
  --review-bg: #f4ebff;
  --ok: #067647;
  --ok-bg: #ecfdf3;
  --shadow: 0 1px 2px rgba(28, 25, 23, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Noto Sans", "Liberation Sans", Arial, sans-serif;
  line-height: 1.45;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--surface);
  padding: 0.5rem 0.75rem;
  z-index: 20;
}

.skip-link:focus {
  left: 0.75rem;
  top: 0.75rem;
}

.page-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem 1.5rem 0.75rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.page-header h1 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
}

.page-header__meta,
.page-header__generated {
  margin: 0.15rem 0;
  color: var(--muted);
  white-space: pre-line;
}

.help {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15rem;
  height: 1.15rem;
  margin-left: 0.35rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.75rem;
  cursor: help;
}

button {
  font: inherit;
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
.help:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

#refresh-button,
#reset-filters,
.filter-chip,
.summary-card,
.group-toggle,
.semantic-toggle {
  border-radius: 0.5rem;
  border: 1px solid var(--line);
  background: var(--surface);
}

#refresh-button {
  padding: 0.65rem 1rem;
  font-weight: 600;
  white-space: nowrap;
  min-height: 44px;
}

#refresh-button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.banner {
  margin: 0.75rem 1.5rem 0;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid #f7d9a8;
}

.summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  padding: 1rem 1.5rem 0;
}

.summary-card {
  text-align: left;
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow);
  min-height: 44px;
}

.summary-card__label {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

.summary-card__value {
  font-size: 1.5rem;
  font-weight: 700;
}

.summary-card[data-status-filter="CRITICAL"] .summary-card__value { color: var(--critical); }
.summary-card[data-status-filter="WARNING"] .summary-card__value { color: var(--warning); }
.summary-card[data-status-filter="REVIEW"] .summary-card__value { color: var(--review); }
.summary-card[data-status-filter="OK"] .summary-card__value { color: var(--ok); }

.toolbar {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.75rem;
  align-items: end;
  padding: 1rem 1.5rem;
}

.search-label {
  grid-column: 1 / -1;
  font-size: 0.9rem;
  color: var(--muted);
}

#search-input {
  width: 100%;
  max-width: 100%;
  padding: 0.6rem 0.75rem;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--surface);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.filter-chip,
#reset-filters {
  padding: 0.45rem 0.7rem;
  min-height: 44px;
}

.filter-chip.is-active {
  background: #1c1917;
  color: #fff;
  border-color: #1c1917;
}

.shown-count {
  margin: 0;
  color: var(--muted);
}

main {
  padding: 0 1.5rem 2rem;
  min-height: 24rem;
}

.state-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 1.5rem;
  min-height: 8rem;
  box-shadow: var(--shadow);
}

.spinner {
  display: inline-block;
  width: 1.1rem;
  height: 1.1rem;
  margin-right: 0.5rem;
  border: 2px solid var(--line);
  border-top-color: var(--focus);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: -0.15rem;
}

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

.semantic-section {
  margin-bottom: 1.25rem;
}

.semantic-toggle,
.group-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.85rem 1rem;
  min-height: 44px;
  text-align: left;
}

.semantic-toggle {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #e7e5e4;
  font-size: 1.05rem;
}

.semantic-body {
  margin-top: 0.65rem;
}

.group {
  margin-bottom: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.group-toggle {
  border: 0;
  border-radius: 0;
  background: #fafaf9;
}

.group-toggle__title {
  font-weight: 700;
}

.group-toggle__meta {
  color: var(--muted);
  font-size: 0.9rem;
  white-space: nowrap;
}

.table-wrap {
  overflow-x: hidden;
}

.inventory-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
}

th,
td {
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--line);
}

thead th {
  position: sticky;
  top: 0;
  background: #fafaf9;
  z-index: 1;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 600;
}

.item-row {
  background: var(--surface);
}

.item-row--CRITICAL { box-shadow: inset 4px 0 0 var(--critical); }
.item-row--WARNING { box-shadow: inset 4px 0 0 var(--warning); }
.item-row--REVIEW { box-shadow: inset 4px 0 0 var(--review); }
.item-row--OK { box-shadow: inset 4px 0 0 var(--ok); }
.item-row--UNKNOWN { box-shadow: inset 4px 0 0 var(--review); background: var(--review-bg); }

.name-cell {
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
}

.num-cell {
  white-space: nowrap;
}

.inventory-mobile {
  display: none;
}

.inventory-card {
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--line);
}

.inventory-card--CRITICAL { box-shadow: inset 4px 0 0 var(--critical); }
.inventory-card--WARNING { box-shadow: inset 4px 0 0 var(--warning); }
.inventory-card--REVIEW { box-shadow: inset 4px 0 0 var(--review); }
.inventory-card--OK { box-shadow: inset 4px 0 0 var(--ok); }
.inventory-card--UNKNOWN { box-shadow: inset 4px 0 0 var(--review); background: var(--review-bg); }

.inventory-card__header {
  display: grid;
  gap: 0.25rem;
}

.inventory-card__name {
  margin: 0;
  font-size: 1rem;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
}

.inventory-card__article {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.inventory-card__facts {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 0.35rem 0.75rem;
  margin: 0.75rem 0 0;
}

.inventory-card__facts dt {
  color: var(--muted);
  font-size: 0.8rem;
}

.inventory-card__facts dd {
  margin: 0;
  font-weight: 600;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  width: fit-content;
}

.badge--CRITICAL { color: var(--critical); background: var(--critical-bg); }
.badge--WARNING { color: var(--warning); background: var(--warning-bg); }
.badge--REVIEW { color: var(--review); background: var(--review-bg); }
.badge--OK { color: var(--ok); background: var(--ok-bg); }
.badge--UNKNOWN { color: var(--review); background: var(--review-bg); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 768px) {
  /* Supported mobile widths: 320, 360, 390, 430, 768 */
  html,
  body {
    overflow-x: hidden;
    max-width: 100%;
  }

  .page-header,
  .toolbar,
  .summary,
  main,
  .banner {
    padding-left: 0.85rem;
    padding-right: 0.85rem;
  }

  .page-header,
  .toolbar {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .page-header {
    gap: 0.75rem;
    padding-top: 0.85rem;
  }

  .page-header h1 {
    font-size: 1.2rem;
  }

  .summary {
    grid-template-columns: 1fr 1fr;
    padding-top: 0.75rem;
  }

  .toolbar {
    grid-template-columns: 1fr;
  }

  .search-label,
  #search-input,
  .filters,
  #reset-filters,
  .shown-count {
    width: 100%;
  }

  .inventory-desktop {
    display: none;
  }

  .inventory-mobile {
    display: block;
  }

  .group-toggle__meta,
  .semantic-toggle .group-toggle__meta {
    white-space: normal;
  }
}