:root {
  color-scheme: dark;
  --bg: #10131a;
  --panel: #181d27;
  --panel-2: #202735;
  --text: #f4f6fb;
  --muted: #a9b2c2;
  --line: #344052;
  --accent: #8ed1ff;
  --good: #92e0b2;
  --warn: #ffd187;
  --bad: #ff9f9f;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.5; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid var(--warn); outline-offset: 2px; }
button, input, select { font: inherit; }
button { cursor: pointer; border: 1px solid var(--line); border-radius: .45rem; padding: .55rem .8rem; background: var(--panel-2); color: var(--text); }
button:hover { border-color: var(--accent); }
.primary { background: #28668e; border-color: #5ba9d8; }
.topbar { min-height: 4rem; display: flex; align-items: center; gap: 1rem; padding: .75rem clamp(1rem, 4vw, 4rem); border-bottom: 1px solid var(--line); background: #141923; }
.brand { font-size: 1.15rem; font-weight: 750; text-decoration: none; color: var(--text); white-space: nowrap; }
.brand span { color: var(--muted); font-weight: 450; font-size: .75rem; margin-left: .4rem; }
nav { display: flex; gap: 1rem; flex: 1; }
nav a { text-decoration: none; color: var(--muted); }
nav a:hover { color: var(--text); }
.inline-form { margin-left: auto; }
.page { max-width: 1500px; margin: 0 auto; padding: clamp(1rem, 3vw, 3rem); }
.footer { color: var(--muted); border-top: 1px solid var(--line); padding: 1rem clamp(1rem, 4vw, 4rem); font-size: .8rem; }
.hero { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 1.5rem; }
.compact-hero { margin-bottom: 1rem; }
h1, h2, h3 { line-height: 1.15; margin: .2rem 0 .7rem; }
h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }
.eyebrow { color: var(--accent); letter-spacing: .11em; font-size: .72rem; font-weight: 750; margin: 0 0 .5rem; }
.muted, .small { color: var(--muted); }
.small { font-size: .8rem; }
.breadcrumb { color: var(--muted); font-size: .85rem; }
.search-form { display: flex; gap: .5rem; min-width: min(100%, 28rem); }
input, select { width: 100%; background: #0c0f15; border: 1px solid var(--line); border-radius: .45rem; color: var(--text); padding: .65rem .75rem; }
.metrics, .status-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .75rem; margin-bottom: 1rem; }
.metric, .status-grid > div { background: var(--panel); border: 1px solid var(--line); border-radius: .65rem; padding: .9rem; }
.metric span, .label { display: block; color: var(--muted); font-size: .75rem; }
.metric strong, .status-grid strong { display: block; margin-top: .35rem; font-size: 1.05rem; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: .7rem; padding: clamp(.9rem, 2vw, 1.4rem); margin-bottom: 1rem; }
.section-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: .75rem; }
.product-card { border: 1px solid var(--line); border-radius: .6rem; padding: 1rem; background: #151a23; }
.card-top { display: flex; justify-content: space-between; gap: .5rem; align-items: center; }
.retailer { color: var(--muted); font-size: .72rem; letter-spacing: .08em; }
.badge { border: 1px solid var(--line); border-radius: 100px; display: inline-block; padding: .12rem .45rem; font-size: .68rem; font-weight: 700; letter-spacing: .03em; }
.badge.fresh, .badge.available { color: var(--good); border-color: #438567; }
.badge.conflict, .badge.blocked, .badge.contract_error, .badge.transient_error { color: var(--bad); border-color: #a35a5a; }
.badge.stale, .badge.unknown, .badge.neutral { color: var(--warn); border-color: #927344; }
.state-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .45rem; margin: 1rem 0 0; }
.state-grid dt { color: var(--muted); font-size: .7rem; }
.state-grid dd { margin: .15rem 0 0; font-size: .85rem; }
.callout, .conflict, .conflict-box { border-left: 3px solid var(--warn); padding: .45rem .65rem; background: #28251c; font-size: .8rem; }
.conflict, .conflict-box { border-left-color: var(--bad); background: #291e22; }
.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.matrix-placeholder, .empty { color: var(--muted); border: 1px dashed var(--line); padding: 1rem; border-radius: .5rem; }
.notice { border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: .5rem; padding: .9rem 1rem; background: #151d27; }
.notice p { margin: .35rem 0 0; color: var(--muted); }
.notice.warning { border-left-color: var(--warn); background: #28251c; }
.retailer-health-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .75rem; }
.retailer-health { border: 1px solid var(--line); border-radius: .55rem; padding: .85rem; background: #151a23; }
.retailer-health p { margin: .7rem 0 0; }
.watch-form { display: grid; grid-template-columns: minmax(9rem, .7fr) minmax(12rem, 1fr); gap: .65rem 1rem; max-width: 54rem; }
.watch-form label { align-self: center; color: var(--muted); font-size: .85rem; }
.watch-form button { grid-column: 2; justify-self: start; }
.compact-list { list-style: none; padding: 0; margin: 0; }
.compact-list li { display: flex; justify-content: space-between; gap: 1rem; padding: .65rem 0; border-bottom: 1px solid var(--line); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .85rem; }
th, td { text-align: left; padding: .65rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; }
.timeline { list-style: none; padding: 0 0 0 1rem; border-left: 2px solid var(--line); }
.timeline li { display: grid; grid-template-columns: 10rem 8rem 1fr; gap: .75rem; padding: .65rem 0; }
.timeline time { color: var(--muted); font-size: .78rem; }
.auth-card { max-width: 30rem; margin: 8vh auto; background: var(--panel); border: 1px solid var(--line); border-radius: .7rem; padding: clamp(1.25rem, 4vw, 2.5rem); }
.stack-form { display: grid; gap: .55rem; }
.stack-form label { color: var(--muted); font-size: .85rem; margin-top: .4rem; }
.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; }
.skip-link { position: absolute; left: -999px; top: .5rem; background: var(--warn); color: #111; padding: .5rem; }
.skip-link:focus { left: .5rem; }
details { margin-top: 1rem; }
summary { cursor: pointer; color: var(--accent); }
@media (max-width: 800px) {
  .topbar { flex-wrap: wrap; }
  nav { order: 3; width: 100%; overflow-x: auto; }
  .hero { display: block; }
  .search-form { margin-top: 1rem; }
  .metrics, .two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .retailer-health-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .timeline li { grid-template-columns: 1fr; gap: .15rem; }
}
@media (max-width: 480px) {
  .page { padding: 1rem .75rem; }
  .metrics, .two-col { grid-template-columns: 1fr; }
  .retailer-health-grid, .watch-form { grid-template-columns: 1fr; }
  .watch-form button { grid-column: 1; }
  .state-grid { grid-template-columns: 1fr; }
  .brand span { display: none; }
}