/* GitHub-style (Primer-inspired) admin UI. Light + dark via prefers-color-scheme. */
:root {
  --bg: #ffffff;
  --bg-subtle: #f6f8fa;
  --bg-inset: #eff2f5;
  --fg: #1f2328;
  --fg-muted: #59636e;
  --border: #d1d9e0;
  --border-muted: #d8dee4;
  --accent: #0969da;
  --accent-subtle: #ddf4ff;
  --success: #1a7f37;
  --success-subtle: #dafbe1;
  --attention: #9a6700;
  --attention-subtle: #fff8c5;
  --danger: #d1242f;
  --danger-subtle: #ffebe9;
  --primary-bg: #1f883d;
  --primary-bg-hover: #1c8139;
  --header-bg: #f6f8fa;
  --focus: #0969da;
  --radius: 6px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --bg-subtle: #151b23;
    --bg-inset: #010409;
    --fg: #f0f6fc;
    --fg-muted: #9198a1;
    --border: #3d444d;
    --border-muted: #2f353d;
    --accent: #4493f8;
    --accent-subtle: #388bfd1a;
    --success: #3fb950;
    --success-subtle: #2ea04326;
    --attention: #d29922;
    --attention-subtle: #bb800926;
    --danger: #f85149;
    --danger-subtle: #f851491a;
    --primary-bg: #238636;
    --primary-bg-hover: #29903b;
    --header-bg: #010409;
    --focus: #1f6feb;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.5 var(--font);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: var(--mono); font-size: 12px; }
code { padding: .1em .4em; background: var(--bg-inset); border-radius: 4px; }
pre { overflow-x: auto; padding: 8px; background: var(--bg-inset); border-radius: var(--radius); white-space: pre-wrap; word-break: break-all; }
h1 { font-size: 24px; font-weight: 600; margin: 0; }
h2 { font-size: 18px; font-weight: 600; margin: 24px 0 8px; }
h3 { font-size: 15px; font-weight: 600; margin: 0; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
[hidden] { display: none !important; }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 8px; top: 8px; z-index: 10; padding: 8px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); }
.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; }
.muted { color: var(--fg-muted); }
.small { font-size: 12px; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Header */
.topbar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 12px 16px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 8px; color: var(--fg); font-weight: 600; }
.brand:hover { text-decoration: none; }
.mainnav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.mainnav a { padding: 6px 10px; border-radius: var(--radius); color: var(--fg); }
.mainnav a:hover { background: var(--bg-inset); text-decoration: none; }
.mainnav a[aria-current="page"] { font-weight: 600; box-shadow: inset 0 -2px 0 #fd8c73; border-radius: 0; }
.userbox { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.userbox form { margin: 0; }
.nav-toggle { display: none; }

.container { max-width: 1280px; margin: 0 auto; padding: 24px 16px 48px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; padding-bottom: 16px; margin-bottom: 16px; border-bottom: 1px solid var(--border-muted); }
.page-head p { margin: 4px 0 0; }
.breadcrumb { margin: 0 0 4px !important; font-size: 13px; }
.narrow { max-width: 640px; }

/* Boxes */
.box { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px; }
.box-header { margin: 0; padding: 12px 16px; background: var(--bg-subtle); border-bottom: 1px solid var(--border); border-radius: var(--radius) var(--radius) 0 0; font-size: 14px; font-weight: 600; }
.box-body { padding: 16px; }
.box-body:not(:first-child) { margin: 0; }
.box-footer { margin: 0; padding: 8px 16px; border-top: 1px solid var(--border-muted); }
.stack > * + * { margin-top: 12px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 16px; }
.grid-2 > .box { margin-bottom: 0; }
.grid-2 + h2 { margin-top: 24px; }
.blankslate { text-align: center; padding: 48px 16px; border: 1px dashed var(--border); border-radius: var(--radius); }
.blankslate h1, .blankslate h2 { margin-top: 0; }
.prose { white-space: normal; }

.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; padding: 8px 16px; border-top: 1px solid var(--border-muted); }
.list li:first-child { border-top: 0; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; margin-bottom: 24px; }
.stat { display: flex; flex-direction: column; padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius); color: var(--fg); background: var(--bg); }
a.stat:hover { border-color: var(--accent); text-decoration: none; }
.stat-value { font-size: 24px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat-label { color: var(--fg-muted); font-size: 12px; }
.stat-attention { border-color: var(--attention); background: var(--attention-subtle); }
.stat-danger { border-color: var(--danger); background: var(--danger-subtle); }

/* Labels */
.label { display: inline-block; padding: 0 7px; font-size: 12px; font-weight: 500; line-height: 18px; border: 1px solid var(--border); border-radius: 2em; color: var(--fg-muted); white-space: nowrap; }
.label-active, .label-completed, .label-in_stock { color: var(--success); border-color: var(--success); }
.label-draft, .label-queued, .label-running, .label-preorder { color: var(--accent); border-color: var(--accent); }
.label-retry_pending, .label-attention, .label-backorder { color: var(--attention); border-color: var(--attention); }
.label-failed, .label-out_of_stock { color: var(--danger); border-color: var(--danger); }
.counter { display: inline-block; min-width: 20px; padding: 0 6px; font-size: 12px; font-weight: 500; line-height: 18px; text-align: center; background: var(--bg-inset); border-radius: 2em; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px; }
.box .table-wrap { border: 0; border-radius: 0; margin: 0; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 8px 12px; text-align: left; vertical-align: top; border-top: 1px solid var(--border-muted); }
.table th.num, .table td.num { text-align: right; }
.table thead th { border-top: 0; background: var(--bg-subtle); font-weight: 600; font-size: 12px; white-space: nowrap; }
.table thead th a { color: var(--fg); }
.table tbody tr:hover { background: var(--bg-subtle); }
.table-compact th, .table-compact td { padding: 6px 10px; }
.table td code { white-space: nowrap; }

/* Forms */
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-weight: 600; font-size: 13px; }
.field.grow { flex: 1 1 240px; }
input, select, textarea {
  font: inherit; color: var(--fg); background: var(--bg);
  padding: 5px 12px; min-height: 32px;
  border: 1px solid var(--border); border-radius: var(--radius);
}
textarea { resize: vertical; }
textarea.mono, input.mono { font-family: var(--mono); font-size: 12px; }
input:focus, select:focus, textarea:focus { border-color: var(--focus); outline: 2px solid var(--focus); outline-offset: -1px; }
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: var(--danger); }
input[type="checkbox"] { min-height: 0; accent-color: var(--accent); }
input[type="file"] { padding: 4px; }
.checkbox { display: inline-flex; align-items: center; gap: 6px; font-weight: 400; }
.field-error { margin: 0; color: var(--danger); font-size: 12px; }
.hint { margin: 0; color: var(--fg-muted); font-size: 12px; }
.filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; margin-bottom: 16px; }
.form-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.form-row .actions { flex-basis: 100%; }
.mapping-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.inline, .inline-form { display: inline-flex; gap: 6px; align-items: center; flex-wrap: wrap; margin: 0; }
.inline-form input:not([type="checkbox"]) { width: 160px; }
details summary { cursor: pointer; color: var(--accent); }
details[open] summary { margin-bottom: 12px; }
details form + form { margin-top: 12px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
  padding: 5px 16px; min-height: 32px;
  font: inherit; font-weight: 500; line-height: 20px; white-space: nowrap;
  color: var(--fg); background: var(--bg-subtle);
  border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer;
}
.btn:hover { background: var(--bg-inset); text-decoration: none; }
.btn:disabled { opacity: .6; cursor: progress; }
.btn-sm { padding: 3px 12px; min-height: 28px; font-size: 12px; }
.btn-primary { color: #fff; background: var(--primary-bg); border-color: rgba(31, 35, 40, .15); }
.btn-primary:hover { background: var(--primary-bg-hover); }
.btn-danger { color: var(--danger); }
.btn-danger:hover { color: #fff; background: var(--danger); border-color: var(--danger); }
.btn-block { width: 100%; }
.btn-link { padding: 0; font: inherit; color: var(--accent); background: none; border: 0; cursor: pointer; }
.btn-link:hover { text-decoration: underline; }

/* Flash messages */
.flash { padding: 12px 16px; margin-bottom: 16px; border: 1px solid; border-radius: var(--radius); }
.flash-success { color: var(--fg); background: var(--success-subtle); border-color: var(--success); }
.flash-error { color: var(--fg); background: var(--danger-subtle); border-color: var(--danger); }
.flash-info { color: var(--fg); background: var(--accent-subtle); border-color: var(--accent); }

/* Variants */
.variant-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; font-weight: 400; }
.variant-head > div { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.sku { font-size: 13px; font-weight: 600; }

.fetch-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.fetch-row code.url { word-break: break-all; }
.bulk-create { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; border-color: var(--attention); }
.bulk-create p { margin: 4px 0 0; }

.pagination { display: flex; align-items: center; justify-content: center; gap: 12px; margin: 16px 0; }

.auth-card { max-width: 340px; margin: 48px auto; }
.auth-card h1 { text-align: center; font-weight: 300; margin-bottom: 16px; }

@media (max-width: 767px) {
  .container { padding-top: 16px; }
  .nav-toggle { display: inline-flex; margin-left: auto; padding: 4px 12px; font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); }
  .mainnav { display: none; flex-basis: 100%; flex-direction: column; }
  .mainnav.open { display: flex; }
  .mainnav a[aria-current="page"] { box-shadow: inset 2px 0 0 #fd8c73; }
  .userbox { flex-basis: 100%; justify-content: space-between; margin-left: 0; }
  .filters .field { flex: 1 1 140px; }
  .filters .field select, .filters .field input { width: 100%; }
  h1 { font-size: 20px; }
}