:root {
  --sidebar: #102947;
  --sidebar-soft: #183a62;
  --blue: #2563eb;
  --blue-dark: #1e40af;
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #172033;
  --muted: #6b778c;
  --line: #dde5f0;
  --green: #16a34a;
  --orange: #f59e0b;
  --red: #dc2626;
  --radius: 8px;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--text); background: var(--bg); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 248px;
  background: linear-gradient(180deg, var(--sidebar) 0%, #0b1d33 100%);
  color: #fff;
  padding: 22px 16px;
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 12px; padding: 6px 8px 26px; }
.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--blue);
  font-weight: 800;
}
.brand small { display: block; margin-top: 4px; color: #9db3cf; }

.menu { display: grid; gap: 8px; }
.menu-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 0;
  border-radius: var(--radius);
  color: #c8d6e8;
  background: transparent;
  padding: 12px 14px;
  text-align: left;
}
.menu-item:hover, .menu-item.active { background: var(--sidebar-soft); color: #fff; }
.menu-item svg, button svg { width: 18px; height: 18px; flex: 0 0 auto; }

.shell { min-height: 100vh; margin-left: 248px; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.eyebrow { margin: 0 0 4px; color: var(--muted); font-size: 13px; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: 24px; }
h2 { margin-bottom: 6px; font-size: 18px; }
h3 { margin: 20px 0 10px; font-size: 15px; }

.page { display: none; padding: 24px 30px 36px; }
.page.active { display: block; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 10px 30px rgba(16,41,71,.05);
}
.card + .card, .grid + .card { margin-top: 18px; }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.section-head p { color: var(--muted); margin-bottom: 0; font-size: 13px; }
.section-head.slim { margin-bottom: 12px; }
.section-head.tight { margin: 16px 0 10px; align-items: center; }

.grid.two { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr); gap: 18px; }
.create-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(360px, .65fr); gap: 18px; align-items: start; }
.filter-grid, .sku-grid, .settings-grid, .config-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-grid.compact { grid-template-columns: 1fr; }
label { display: grid; gap: 8px; color: #41516a; font-size: 13px; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  padding: 10px 12px;
  outline: 0;
}
textarea { min-height: 88px; resize: vertical; line-height: 1.5; }
input:focus, select:focus, textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }

.primary, .ghost, .admin-entry, .danger-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  min-height: 38px;
  padding: 0 14px;
  white-space: nowrap;
}
.primary { color: #fff; background: var(--blue); }
.primary.dark { background: var(--blue-dark); }
.ghost, .admin-entry { color: #334155; background: #fff; border-color: var(--line); }
.danger-btn { color: #fff; background: var(--red); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 780px; }
th, td { padding: 14px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; }
th { color: #516079; background: #f8fafc; font-weight: 700; }
.product-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 190px;
}
.product-thumb {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: var(--radius);
  color: #245aa8;
  background: #eef6ff;
  border: 1px solid #cfe0f6;
}
.product-thumb svg { width: 18px; height: 18px; }
.product-thumb.warm { color: #7a4b00; background: #fff6df; border-color: #f2dca3; }
.product-thumb.green { color: #116932; background: #f0fdf4; border-color: #bbf7d0; }
.product-thumb.rose { color: #9f1239; background: #fff1f2; border-color: #fecdd3; }
.badge { display: inline-flex; align-items: center; height: 24px; border-radius: 999px; padding: 0 10px; font-size: 12px; font-weight: 700; }
.badge.success { color: #116932; background: #dcfce7; }
.badge.running { color: #8a5600; background: #fef3c7; }
.badge.danger { color: #991b1b; background: #fee2e2; }
.link-btn { border: 0; background: transparent; color: var(--blue); padding: 4px 8px; }
.pagination { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.pagination button {
  min-width: 36px;
  height: 34px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
}
.pagination .current { color: #fff; background: var(--blue); border-color: var(--blue); }

.upload-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.upload-box {
  aspect-ratio: 1 / 1;
  min-height: 130px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  border: 1.5px dashed #a9b8cc;
  border-radius: var(--radius);
  color: #708197;
  background: #f8fafc;
}
.upload-box.wide { aspect-ratio: auto; min-height: 116px; margin: 14px 0; }
.upload-box.filled {
  border-style: solid;
  border-color: #bcd1eb;
  background: #eef6ff;
  color: #315f9c;
}
.upload-box svg { width: 28px; height: 28px; }

.product-library {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 18px 0;
}
.product-card {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 10px 30px rgba(16,41,71,.05);
}
.product-card.active-product { border-color: #9fc2f8; box-shadow: 0 12px 34px rgba(37,99,235,.12); }
.product-cover {
  min-height: 150px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  border-radius: var(--radius);
  color: #245aa8;
  background: linear-gradient(135deg, #e9f3ff, #f7fbff);
  border: 1px solid #d2e4fa;
}
.product-cover.alt { color: #7a4b00; background: linear-gradient(135deg, #fff6df, #fffaf0); border-color: #f2dca3; }
.product-cover svg { width: 34px; height: 34px; }
.product-cover.large {
  width: 136px;
  min-height: 136px;
}
.product-cover.large svg { width: 38px; height: 38px; }
.product-info { min-width: 0; }
.asset-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 16px;
}
.asset-stats span,
.library-preview span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  color: #475569;
  background: #f1f5f9;
  font-size: 12px;
}
.product-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.inline-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.asset-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.compact-assets .upload-box { min-height: 104px; }
.mini-assets {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.mini-assets .upload-box {
  min-height: 82px;
  aspect-ratio: 1 / 1;
  font-size: 12px;
}
.mini-assets .upload-box svg,
.small-upload svg { width: 22px; height: 22px; }
.small-upload {
  min-height: 92px;
  aspect-ratio: auto;
  font-size: 12px;
}
.package-list { display: grid; gap: 12px; }
.package-list div {
  display: grid;
  gap: 4px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
}
.package-list span { color: var(--muted); font-size: 13px; line-height: 1.5; }
.quality-list,
.rule-list,
.compliance-list {
  display: grid;
  gap: 12px;
}
.quality-list div {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding-bottom: 12px;
  color: #475569;
  font-size: 13px;
}
.quality-list div::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  border-radius: 999px;
  background: #e2e8f0;
}
.quality-list em {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 6px;
  border-radius: 999px;
  background: var(--blue);
}
.quality-list strong { color: var(--text); }
.rule-list div,
.compliance-list div {
  display: grid;
  gap: 4px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
}
.rule-list span,
.compliance-list span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}
.compliance-list .pass { border-color: #bbf7d0; background: #f0fdf4; }
.compliance-list .warn { border-color: #fde68a; background: #fffbeb; }
.prompt-rules {
  display: grid;
  gap: 10px;
}
.prompt-rules div {
  display: grid;
  gap: 5px;
  padding: 13px 14px;
  border: 1px solid #cfe0f6;
  border-radius: var(--radius);
  background: #f7fbff;
}
.prompt-rules span {
  color: #475569;
  font-size: 13px;
  line-height: 1.55;
}
.sku-table {
  display: grid;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.sku-row {
  display: grid;
  grid-template-columns: 1.2fr 1.2fr .8fr .7fr;
  align-items: center;
  min-height: 46px;
  border-bottom: 1px solid var(--line);
}
.sku-row:last-child { border-bottom: 0; }
.sku-row span { padding: 0 12px; font-size: 14px; }
.sku-head { color: #516079; background: #f8fafc; font-weight: 700; }
.sku-table.expanded .sku-row { grid-template-columns: 1fr 1.2fr 1.2fr .9fr; }
.sku-import-note {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 12px 14px;
  margin-bottom: 14px;
  border: 1px solid #cfe0f6;
  border-radius: var(--radius);
  background: #f7fbff;
  color: #475569;
  font-size: 13px;
}
.sku-import-note strong { color: #1e40af; }
.import-status {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}
.import-status div {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
}
.import-status span { color: var(--muted); font-size: 13px; }
.sku-rule-grid {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) minmax(220px, .8fr);
  gap: 14px;
  margin-bottom: 14px;
}
.create-sku-assets {
  grid-template-columns: 150px minmax(0, 1fr) 170px;
}
.dimension-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}
.sku-rule-grid h3 { margin-top: 0; }
.color-assets {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.color-assets div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 8px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
}
.color-assets em {
  grid-column: 2;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}
.color-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid #cbd5e1;
}
.color-dot.ivory { background: #f6efe2; }
.color-dot.green { background: #284538; }
.color-dot.coffee { background: #b89572; }
.color-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}
.color-card {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}
.color-title {
  display: flex;
  align-items: center;
  gap: 8px;
}
.color-title em {
  margin-left: auto;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}
.mini-photo-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.mini-photo-row span,
.mini-photo-row button {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px dashed #a9b8cc;
  border-radius: var(--radius);
  background: #f8fafc;
  color: #64748b;
  padding: 0 10px;
  font-size: 12px;
}
.mini-photo-row button svg { width: 14px; height: 14px; }
.mini-photo-row.empty button { width: 100%; }
.image-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}
.image-list a,
.muted-text {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
  color: var(--text);
  text-decoration: none;
  min-height: 70px;
}
.image-list small,
.muted-text {
  color: var(--muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}
.compact-images {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 12px;
}
.compact-images a,
.compact-images .muted-text {
  min-height: 52px;
}
.compact-rule { gap: 8px; }
.compact-rule div { padding: 10px 12px; }
.sku-table.matrix {
  display: block;
  overflow-x: auto;
}
.sku-table.matrix .sku-row {
  display: grid;
  grid-template-columns: 140px 80px 90px 120px 80px 150px 140px 110px;
  min-width: 910px;
}
.generation-summary { margin-bottom: 16px; }
.generation-packs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.pack-card {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 10px;
  row-gap: 4px;
  align-items: start;
  padding: 14px;
  border: 1px solid #bcd1eb;
  border-radius: var(--radius);
  background: #f7fbff;
}
.pack-card input { width: auto; margin-top: 2px; }
.pack-card span { grid-column: 2; color: var(--muted); font-size: 13px; }
.image-placeholder.tall { min-height: 320px; }
.library-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px;
  margin: 14px 0;
  border-radius: var(--radius);
  background: #f8fafc;
  border: 1px solid var(--line);
}
.library-preview strong { width: 100%; }
.selected-product {
  display: grid;
  gap: 6px;
  padding: 14px;
  margin: 10px 0 14px;
  border: 1px solid #cfe0f6;
  border-radius: var(--radius);
  background: #f7fbff;
}
.selected-product span {
  color: var(--muted);
  font-size: 13px;
}

.module-checks {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 10px;
}
.module-checks.compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.check-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  font-size: 13px;
}
.check-pill input { width: auto; }

.action-strip { display: flex; justify-content: flex-end; gap: 12px; margin-bottom: 16px; }
.generate-layout { display: grid; grid-template-columns: minmax(0, 6fr) minmax(340px, 4fr); gap: 18px; align-items: start; }
.generate-preview { display: grid; gap: 16px; }
.preview-tabs {
  display: inline-flex;
  width: fit-content;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
}
.preview-tab {
  min-width: 82px;
  border: 0;
  border-radius: 6px;
  color: #475569;
  background: transparent;
  padding: 9px 14px;
}
.preview-tab.active {
  color: #fff;
  background: var(--blue);
}
.preview-panel { display: none; }
.preview-panel.active { display: grid; gap: 16px; }
.detail-module-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.detail-module-grid div {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
}
.detail-module-grid span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
.detail-preview { min-height: 420px; }
.preview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.preview-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}
.image-placeholder {
  min-height: 230px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #eef5ff 0%, #f8fafc 100%);
  border: 1px solid #d7e4f5;
  color: #728299;
}
.image-placeholder svg { width: 38px; height: 38px; }
.card-actions { display: flex; gap: 10px; }
.card-actions select { flex: 1; }

.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tab-btn {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: #4b5b73;
  padding: 9px 12px;
}
.tab-btn.active { color: #fff; background: var(--blue); border-color: var(--blue); }
.config-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.full { grid-column: 1 / -1; }
.switch { display: inline-flex; align-items: center; grid-auto-flow: column; gap: 8px; }
.switch input { display: none; }
.switch span {
  position: relative;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: #cbd5e1;
}
.switch span::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: .2s;
}
.switch input:checked + span { background: var(--blue); }
.switch input:checked + span::after { transform: translateX(18px); }
.footer-actions { display: flex; gap: 10px; margin-top: 18px; }
.status-line { display: flex; align-items: center; gap: 8px; color: var(--green); margin: 16px 0 0; }
.variable-panel {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
}
.variable-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.variable-list span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  color: #1e40af;
  background: #e0ecff;
  font-size: 12px;
  font-family: Consolas, Monaco, monospace;
}
.content-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
  padding: 18px;
}
.product-identity {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 18px;
}
.product-identity h2 { font-size: 22px; margin-bottom: 8px; }
.product-identity p:not(.eyebrow) { color: var(--muted); line-height: 1.6; margin-bottom: 10px; }
.content-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
  align-items: start;
}
.content-main {
  display: grid;
  gap: 14px;
}
.content-side {
  display: grid;
  gap: 14px;
  position: sticky;
  top: 100px;
}
.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.content-sections {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.content-sections div,
.platform-card,
.timeline-list div {
  display: grid;
  gap: 5px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
}
.content-sections span,
.platform-card span,
.timeline-list span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}
.platform-stack,
.timeline-list {
  display: grid;
  gap: 10px;
}
.right-panel .platform-stack { margin-bottom: 14px; }
.platform-card {
  grid-template-columns: auto 1fr;
  align-items: start;
}
.platform-card input {
  width: auto;
  margin-top: 2px;
}
.platform-card span { grid-column: 2; }
.platform-card.active {
  border-color: #9fc2f8;
  background: #f7fbff;
}

@media (max-width: 1100px) {
  .sidebar { width: 76px; padding-inline: 10px; }
  .brand div, .menu-item span { display: none; }
  .shell { margin-left: 76px; }
  .menu-item { justify-content: center; }
  .generate-layout, .grid.two { grid-template-columns: 1fr; }
  .create-layout { grid-template-columns: 1fr; }
  .product-library { grid-template-columns: 1fr; }
  .module-checks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .asset-grid, .generation-packs, .detail-module-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .content-layout { grid-template-columns: 1fr; }
  .content-side { position: static; }
  .sku-rule-grid { grid-template-columns: 1fr; }
  .import-status, .color-gallery { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .topbar { height: auto; padding: 16px; align-items: flex-start; }
  .page { padding: 16px; }
  .section-head, .action-strip { align-items: stretch; flex-direction: column; }
  .filter-grid, .sku-grid, .settings-grid, .form-grid, .config-grid, .preview-grid, .dimension-grid { grid-template-columns: 1fr; }
  .module-checks, .module-checks.compact, .upload-row { grid-template-columns: 1fr; }
  .product-card { grid-template-columns: 1fr; }
  .asset-grid, .generation-packs, .detail-module-grid { grid-template-columns: 1fr; }
  .image-list { grid-template-columns: 1fr; }
  .sku-row { grid-template-columns: 1fr; padding: 10px 0; gap: 8px; }
  .sku-table.expanded .sku-row { grid-template-columns: 1fr; }
  .color-assets { grid-template-columns: 1fr; }
  .mini-assets, .mini-assets.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .content-hero, .product-identity { grid-template-columns: 1fr; align-items: stretch; }
  .content-hero { flex-direction: column; }
  .product-cover.large { width: 100%; }
  .profile-grid, .content-sections { grid-template-columns: 1fr; }
  .card-actions, .footer-actions { flex-wrap: wrap; }
}