:root {
  color-scheme: light dark;
  --border: #d8dbe0;
  --muted: #6b7280;
  --accent: #2a78d6;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --card-bg: #fafafa;
  /* Status colors (dataviz skill's fixed palette - never themed, never
     reused for a data series, always paired with a text label). */
  --status-good: #0ca30c;
  --status-warning: #b9820a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --border: #333;
    --muted: #9aa0a8;
    --bg: #121212;
    --fg: #eee;
    --card-bg: #1c1c1c;
    --accent: #3987e5;
    --status-good: #0ca30c;
    --status-warning: #fab219;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
main { max-width: 1000px; margin: 0 auto; padding: 24px 16px 64px; }

.site-header {
  border-bottom: 1px solid var(--border);
  padding: 16px;
}
.brand { font-weight: 700; font-size: 1.2rem; color: var(--fg); text-decoration: none; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.product-card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  text-decoration: none;
  color: var(--fg);
  background: var(--card-bg);
}
.product-card img, .product-card-noimage {
  width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 6px; background: var(--border);
}
.product-card-name { font-weight: 600; margin-top: 8px; }
.product-card-category { color: var(--muted); font-size: 0.85rem; }
.product-card-price { margin-top: 4px; font-weight: 600; }

.back-link { color: var(--muted); text-decoration: none; }

.product-detail { display: flex; gap: 24px; margin-top: 16px; flex-wrap: wrap; }
.product-detail-image { max-width: 360px; width: 100%; border-radius: 8px; }
.product-detail-info { flex: 1; min-width: 240px; }
.product-detail-price { font-size: 1.4rem; font-weight: 700; margin: 8px 0; }
.product-detail-description { color: var(--muted); }

.badge { font-size: 0.7rem; padding: 2px 8px; border-radius: 999px; margin-left: 8px; vertical-align: middle; }
.badge-gem { background: #eda100; color: #111; }

.similar-products { margin-top: 40px; }

.empty { color: var(--muted); }

.admin-bar { display: flex; align-items: center; justify-content: space-between; }
.admin-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.admin-table th, .admin-table td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); }
.hint { font-weight: 400; color: var(--muted); font-size: 0.8rem; }

.button, button {
  background: var(--accent); color: #fff; border: none; border-radius: 6px;
  padding: 8px 16px; cursor: pointer; text-decoration: none; display: inline-block; font-size: 0.95rem;
}
.link-button { background: none; color: var(--accent); padding: 0; text-decoration: underline; }

form.product-form, .admin-login form { display: flex; flex-direction: column; gap: 12px; max-width: 480px; margin-top: 16px; }
form label { display: flex; flex-direction: column; gap: 4px; font-size: 0.9rem; color: var(--muted); }
form input, form textarea { padding: 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--fg); font-size: 1rem; }
.checkbox-label { flex-direction: row !important; align-items: center; gap: 8px !important; }

.form-error { color: #e34948; }
.admin-login { max-width: 360px; margin: 40px auto; }

.site-header { display: flex; align-items: center; justify-content: space-between; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.site-nav a:hover { color: var(--fg); }

.analytics-nav { display: flex; gap: 16px; margin: 12px 0 20px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.analytics-nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.analytics-nav a:hover { color: var(--accent); }

.analytics-search-form { display: flex; flex-direction: column; gap: 12px; max-width: 640px; margin-top: 8px; }
.form-row { display: flex; gap: 20px; flex-wrap: wrap; }
.form-row label { flex: 1; min-width: 160px; }
.radio-label { flex-direction: row !important; align-items: center; gap: 8px !important; }

.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 12px; margin: 16px 0; }
.kpi-tile { border: 1px solid var(--border); border-radius: 8px; padding: 12px; text-align: center; background: var(--card-bg); }
.overview-section { border: 1px solid var(--border); border-radius: 10px; padding: 16px 20px; margin: 16px 0 28px; background: var(--card-bg); }
.overview-section h2 { margin-top: 0; }
.kpi-value { font-size: 1.3rem; font-weight: 700; }
.kpi-label { color: var(--muted); font-size: 0.75rem; margin-top: 2px; }

.table-scroll { overflow-x: auto; }

.category-match-list { list-style: none; padding: 0; margin: 12px 0; max-height: 400px; overflow-y: auto; }
.category-match-list li { border-bottom: 1px solid var(--border); }
.category-match-list a { display: block; padding: 8px 4px; color: var(--fg); text-decoration: none; }
.category-match-list a:hover { color: var(--accent); }

/* Persistent admin sidebar - shown on every page (not just /admin and
   /analytics) once logged in, so the whole site feels like one workspace
   instead of separate admin/analytics apps. */
.page-shell.with-sidebar { display: flex; align-items: flex-start; }
.page-shell.with-sidebar main { flex: 1; min-width: 0; max-width: none; margin: 0; padding: 24px 32px; }
.sidebar {
  width: 220px; flex-shrink: 0; border-right: 1px solid var(--border);
  padding: 20px 16px; display: flex; flex-direction: column; gap: 22px;
  min-height: calc(100vh - 58px);
}
.sidebar-heading { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 6px; }
.sidebar-group { display: flex; flex-direction: column; gap: 2px; }
.sidebar-link { display: block; padding: 6px 10px; border-radius: 6px; color: var(--fg); text-decoration: none; font-size: 0.95rem; }
.sidebar-link:hover { background: var(--card-bg); }
.sidebar-link.active { background: var(--accent); color: #fff; }
.sidebar-logout { margin-top: auto; }

@media (max-width: 720px) {
  .page-shell.with-sidebar { flex-direction: column; }
  .page-shell.with-sidebar main { padding: 20px 16px; }
  .sidebar {
    width: 100%; min-height: auto; border-right: none; border-bottom: 1px solid var(--border);
    flex-direction: row; flex-wrap: wrap; align-items: center; gap: 16px; padding: 12px 16px;
  }
  .sidebar-group { flex-direction: row; flex-wrap: wrap; gap: 4px; }
  .sidebar-heading { display: none; }
  .sidebar-logout { margin-top: 0; margin-left: auto; }
}

/* Screen-reader-only text - keeps exactly one real <h1> on every page
   (accessibility/SEO) without duplicating the styled hero headline. */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* -------------------------------------------------------- homepage v2 -- */
.hero { padding: 8px 0 28px; }
.hero-title { font-size: 1.9rem; font-weight: 700; line-height: 1.25; margin: 0 0 8px; max-width: 620px; }
.hero-subtitle { color: var(--muted); font-size: 1rem; line-height: 1.5; max-width: 620px; margin: 0 0 20px; }

.hero-figure-row { display: flex; align-items: baseline; flex-wrap: wrap; gap: 20px; margin-bottom: 8px; }
.hero-figure-value { font-size: 3rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1; }
.hero-figure-label { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

.freshness-badge {
  display: inline-flex; align-items: center; gap: 6px; font-size: 0.82rem;
  color: var(--muted); border: 1px solid var(--border); border-radius: 999px;
  padding: 5px 12px 5px 10px;
}
.freshness-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex-shrink: 0; }
.freshness-fresh .freshness-dot { background: var(--status-good); }
.freshness-stale .freshness-dot { background: var(--status-warning); }

.narration { font-size: 1rem; line-height: 1.6; max-width: 680px; margin: 20px 0; }
.narration strong { font-weight: 600; }

.chart-card {
  border: 1px solid var(--border); border-radius: 10px; padding: 18px 20px 14px;
  margin: 20px 0; background: var(--card-bg); max-width: 640px;
}
.chart-card h3 { margin: 0 0 14px; font-size: 0.95rem; }
.chart-card-link { display: inline-block; margin-top: 10px; font-size: 0.85rem; }
.bar-chart { display: block; overflow: visible; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
.bar-chart .chart-bar { fill: var(--accent); }
.bar-chart .chart-label { fill: var(--fg); font-size: 12px; }
.bar-chart .chart-value { fill: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }

.pipeline-section { margin: 8px 0 36px; }
.pipeline-section h2 { margin-bottom: 16px; }
.pipeline { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 8px; align-items: stretch; }
.pipeline-stage {
  border: 1px solid var(--border); border-radius: 10px; padding: 16px;
  background: var(--card-bg); display: flex; flex-direction: column; gap: 8px;
}
.pipeline-stage-title { font-weight: 700; font-size: 0.9rem; }
.pipeline-stage p { margin: 0; font-size: 0.85rem; color: var(--muted); line-height: 1.45; flex: 1; }
.pipeline-stage-metric {
  font-size: 0.78rem; font-weight: 600; color: var(--accent);
  border-top: 1px solid var(--border); padding-top: 8px; margin-top: 2px;
}
.pipeline-arrow { display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 1.2rem; padding: 0 4px; }

@media (max-width: 900px) {
  .pipeline { grid-template-columns: 1fr; gap: 12px; }
  .pipeline-arrow { transform: rotate(90deg); padding: 0; }
  .hero-figure-value { font-size: 2.2rem; }
}