:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-soft: rgba(15, 23, 42, 0.03);
  --text: #0f172a;
  --muted: #64748b;
  --accent: #5b6ee1;
  --accent-strong: #4658c9;
  --success: #2f855a;
  --danger: #c05656;
  --warning: #b7791f;
  --border: rgba(148, 163, 184, 0.22);
  --shadow: 0 18px 48px rgba(148, 163, 184, 0.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(91, 110, 225, 0.08), transparent 30%),
    radial-gradient(circle at top left, rgba(148, 163, 184, 0.12), transparent 24%),
    linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: white; }
button, input { font: inherit; }
[hidden] { display: none !important; }

.page-shell {
  max-width: 1480px;
  margin: 0 auto;
  padding: 28px 22px 56px;
}

.panel-surface,
.stat-card,
.top-tabs,
.top-tab,
.focus-card,
.group-card,
.product-card,
.change-item,
.category-tab,
.category-summary-item {
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  border-radius: 28px;
  padding: 28px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.hero-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-size: 12px;
}
.eyebrow.small { font-size: 11px; }

.hero h1,
.panel-header h2,
.category-panel-head h3,
.group-header h4,
.product-topline h5,
.focus-topline h3 {
  margin: 0;
}

.hero h1 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.06;
}

.hero-copy,
.muted,
.category-summary-item p,
.product-subline,
.group-header p,
.focus-topline p,
.panel-header p,
.category-panel-head p {
  color: var(--muted);
}

.hero-copy {
  margin: 0;
  max-width: 820px;
  line-height: 1.7;
}

.hero-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-badge,
.page-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-size: 13px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.primary-button,
.secondary-button {
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 14px;
  cursor: pointer;
}

.primary-button {
  border: 0;
  background: linear-gradient(135deg, #667eea, #5b6ee1);
  color: #ffffff;
  font-weight: 700;
}

.secondary-button {
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255,255,255,0.72);
}

.stat-strip {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-card {
  border-radius: 18px;
  padding: 18px 20px;
}

.stat-card span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.stat-card strong {
  font-size: 34px;
}

.stat-card.accent {
  background: linear-gradient(135deg, rgba(91, 110, 225, 0.12), rgba(47, 133, 90, 0.08));
}

.top-tabs {
  margin-top: 20px;
  position: sticky;
  top: 12px;
  z-index: 20;
  display: flex;
  gap: 10px;
  padding: 10px;
  border-radius: 18px;
}

.top-tab,
.category-tab,
.page-number {
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 12px 16px;
  color: var(--muted);
  background: rgba(255,255,255,0.68);
  cursor: pointer;
}

.top-tab.is-active,
.category-tab.is-active,
.page-number.is-active {
  color: #ffffff;
  border-color: rgba(91, 110, 225, 0.22);
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.95), rgba(91, 110, 225, 0.92));
  font-weight: 700;
}

.tab-sections {
  margin-top: 20px;
}

.tab-section {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.overview-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
}

.overview-panel,
.section-panel {
  border-radius: 24px;
  padding: 22px;
}

.highlight-panel {
  background: linear-gradient(180deg, rgba(91, 110, 225, 0.08), rgba(255,255,255,0.75));
}

.panel-header,
.focus-topline,
.group-header,
.group-side,
.product-topline,
.catalog-header,
.category-panel-head,
.pagination-meta {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.panel-header { margin-bottom: 16px; }
.panel-header p { margin: 6px 0 0; }

.overview-kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.overview-kpis article,
.focus-metrics div,
.product-metrics div,
.spec-list div {
  border-radius: 16px;
  padding: 14px;
  border: 1px solid var(--border);
  background: var(--panel-soft);
}

.overview-kpis span,
.focus-metrics span,
.product-metrics span,
.spec-list dt {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.overview-kpis strong {
  font-size: 28px;
}

.large-copy {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
}

.category-summary-list,
.change-timeline {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.category-summary-item {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  padding: 16px;
  border-radius: 16px;
}

.category-summary-item p { margin: 6px 0 0; }

.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.focus-card {
  border-radius: 18px;
  padding: 18px;
  background: linear-gradient(180deg, rgba(47, 133, 90, 0.06), rgba(255,255,255,0.78));
}

.focus-metrics,
.product-metrics {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.focus-actions {
  margin-top: 14px;
}

.catalog-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: flex-end;
}

.search-box,
.toggle-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--muted);
}

.search-box input {
  min-width: 280px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 12px 14px;
}

.toggle-box {
  flex-direction: row;
  align-items: center;
  padding-bottom: 10px;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.category-tab {
  display: inline-flex;
  gap: 10px;
  align-items: center;
}

.category-panel-head {
  margin-bottom: 16px;
}

.group-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.group-card {
  border-radius: 18px;
  padding: 18px;
}

.group-side {
  align-items: center;
  flex-wrap: wrap;
}

.product-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.product-card {
  border-radius: 16px;
  padding: 16px;
}

.product-card.in_stock {
  border-color: rgba(47, 133, 90, 0.24);
  background: linear-gradient(180deg, rgba(47, 133, 90, 0.05), rgba(255,255,255,0.82));
}

.product-card.sold_out {
  border-color: rgba(192, 86, 86, 0.16);
}

.product-subline { margin: 6px 0 0; }

.tag-row {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(91, 110, 225, 0.1);
  color: #4658c9;
  font-size: 12px;
}

.spec-list {
  margin: 14px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.spec-list dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
}

.stock-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 13px;
  border: 1px solid var(--border);
  white-space: nowrap;
}

.stock-pill.is-live {
  color: #ffffff;
  background: linear-gradient(135deg, #3f8f65, #2f855a);
  border: 0;
}

.stock-pill.is-empty {
  background: rgba(148,163,184,0.12);
  color: var(--muted);
}

.pagination-bar {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.pagination-pages {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.pagination-button[disabled],
.page-number[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

.change-item {
  position: relative;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border-radius: 16px;
  padding: 16px;
}

.change-dot {
  margin-top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  flex: 0 0 auto;
}

.change-body p {
  margin: 6px 0;
  color: var(--muted);
  line-height: 1.6;
}

.change-body span {
  font-size: 12px;
  color: var(--muted);
}

.change-item.type-restocked .change-dot { background: var(--success); }
.change-item.type-sold_out .change-dot { background: var(--danger); }
.change-item.type-stock_changed .change-dot { background: var(--warning); }

.empty-state {
  padding: 18px;
  border-radius: 16px;
  border: 1px dashed var(--border);
  color: var(--muted);
  background: rgba(255,255,255,0.03);
}

.empty-state.small { margin-top: 14px; }
.is-hidden { display: none !important; }

@media (max-width: 1180px) {
  .overview-grid,
  .catalog-header {
    grid-template-columns: 1fr;
  }

  .hero,
  .panel-header,
  .focus-topline,
  .group-header,
  .product-topline,
  .catalog-header,
  .category-panel-head,
  .pagination-bar {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 900px) {
  .stat-strip,
  .overview-kpis,
  .focus-metrics,
  .product-metrics,
  .spec-list {
    grid-template-columns: 1fr 1fr;
  }

  .top-tabs {
    overflow-x: auto;
  }
}

@media (max-width: 720px) {
  .page-shell { padding: 16px 12px 32px; }
  .stat-strip,
  .overview-kpis,
  .focus-metrics,
  .product-metrics,
  .spec-list,
  .focus-grid {
    grid-template-columns: 1fr;
  }

  .category-summary-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .search-box input { min-width: 0; width: 100%; }
}