:root {
  color-scheme: light;
  --bg: #eef3f8;
  --card: rgba(255, 255, 255, 0.78);
  --card-strong: rgba(255, 255, 255, 0.94);
  --line: rgba(15, 23, 42, 0.1);
  --text: #0f172a;
  --muted: #64748b;
  --soft: #f8fafc;
  --primary: #0f172a;
  --primary-soft: #e2e8f0;
  --danger: #991b1b;
  --danger-soft: #fee2e2;
  --success: #166534;
  --shadow: 0 22px 70px rgba(15, 23, 42, 0.14);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.18), transparent 34rem),
    radial-gradient(circle at bottom right, rgba(15, 23, 42, 0.12), transparent 36rem),
    var(--bg);
  color: var(--text);
}

button, input { font: inherit; }
button { cursor: pointer; }

.app-shell {
  min-height: 100%;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(22px);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.brand {
  border: 0;
  background: transparent;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-align: left;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: var(--primary);
  color: white;
  font-weight: 900;
  letter-spacing: -0.06em;
}

.brand strong { display: block; font-size: 1.12rem; }
.brand small { display: block; color: var(--muted); margin-top: 2px; }

.topbar-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.connection-pill {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.07);
  color: var(--muted);
  font-size: 0.92rem;
}
.connection-pill.ok { color: var(--success); background: rgba(22, 101, 52, 0.1); }
.connection-pill.error { color: var(--danger); background: var(--danger-soft); }

.screen { display: none; flex: 1; }
.screen-active { display: block; }

.hero-panel {
  max-width: 760px;
  margin: 7vh auto 34px;
  text-align: center;
}
.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 800;
}
h1, h2, p { margin-top: 0; }
h1 { font-size: clamp(2.4rem, 6vw, 5.4rem); letter-spacing: -0.07em; line-height: 0.94; margin-bottom: 18px; }
h2 { letter-spacing: -0.04em; margin-bottom: 0; }
.lead { color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.35rem); margin-bottom: 0; }

.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 1fr));
  gap: 22px;
  max-width: 980px;
  margin: 0 auto;
}
.mode-card {
  min-height: 300px;
  border: 1px solid var(--line);
  background: var(--card-strong);
  border-radius: 34px;
  padding: 34px;
  box-shadow: var(--shadow);
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.mode-card:hover, .mode-card:focus-visible { transform: translateY(-4px); border-color: rgba(15, 23, 42, .24); outline: none; }
.mode-icon { font-size: 3rem; margin-bottom: auto; }
.mode-title { font-size: clamp(2rem, 3.4vw, 3.2rem); font-weight: 900; letter-spacing: -0.06em; }
.mode-subtitle { margin-top: 10px; font-size: 1.25rem; font-weight: 700; }
.mode-text { margin-top: 6px; color: var(--muted); font-size: 1.1rem; }

.pos-layout.screen-active {
  display: grid;
  grid-template-columns: minmax(260px, 330px) minmax(360px, 1fr) minmax(260px, 320px);
  gap: 18px;
  min-height: 0;
}
.side-panel, .payment-panel { display: flex; flex-direction: column; gap: 14px; min-height: 0; }
.panel-card, .content-panel, .price-result {
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(22px);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}
.panel-card { padding: 18px; }
.panel-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  font-weight: 900;
}
.panel-heading small { color: var(--muted); font-weight: 700; }
.scan-form { display: flex; gap: 8px; }
.scan-form input {
  min-width: 0;
  flex: 1;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0 14px;
  background: rgba(255,255,255,.82);
  color: var(--text);
  outline: none;
}
.scan-form input:focus { border-color: rgba(15,23,42,.34); box-shadow: 0 0 0 4px rgba(15,23,42,.08); }
.primary-button, .ghost-button, .danger-button {
  min-height: 42px;
  border-radius: 15px;
  border: 1px solid transparent;
  padding: 0 15px;
  font-weight: 850;
}
.primary-button { background: var(--primary); color: white; }
.ghost-button { background: rgba(255,255,255,.7); color: var(--text); border-color: var(--line); }
.danger-button { background: var(--danger-soft); color: var(--danger); }
.helper-text { color: var(--muted); margin: 10px 0 0; font-size: .92rem; }
.helper-text.error { color: var(--danger); }
.helper-text.ok { color: var(--success); }

.categories-card { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.category-list { display: flex; flex-direction: column; gap: 8px; overflow: auto; padding-right: 3px; }
.category-button {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.64);
  border-radius: 18px;
  min-height: 58px;
  padding: 10px 12px;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--text);
}
.category-button.active { background: var(--primary); color: white; }
.category-button small { opacity: .68; }

.content-panel { display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.content-toolbar {
  padding: 18px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.content-body { padding: 18px; overflow: auto; flex: 1; }
.cart-list { display: flex; flex-direction: column; gap: 10px; }
.cart-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 14px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  border-radius: 20px;
}
.cart-row strong { display: block; }
.cart-row small { color: var(--muted); }
.qty-controls { display: flex; align-items: center; gap: 7px; }
.qty-controls button {
  width: 36px;
  height: 36px;
  border-radius: 13px;
  border: 1px solid var(--line);
  background: white;
  font-weight: 900;
}
.qty-controls span { min-width: 28px; text-align: center; font-weight: 900; }
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); gap: 12px; }
.product-card {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.74);
  border-radius: 22px;
  padding: 10px;
  color: var(--text);
  text-align: left;
  display: flex;
  flex-direction: column;
  min-height: 220px;
}
.product-image-wrap {
  aspect-ratio: 1 / 1;
  border-radius: 18px;
  background: var(--soft);
  display: grid;
  place-items: center;
  overflow: hidden;
  margin-bottom: 10px;
}
.product-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.product-info strong { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.15; }
.product-info small { display: block; color: var(--muted); margin-top: 6px; font-weight: 850; }

.total-card strong { display: block; font-size: 2.4rem; letter-spacing: -0.06em; margin: 4px 0; }
.muted-label { color: var(--muted); font-weight: 750; }
.payment-card {
  border: 1px solid var(--line);
  background: var(--card-strong);
  color: var(--text);
  border-radius: 24px;
  padding: 20px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--shadow);
}
.payment-card span { font-size: 1.3rem; font-weight: 950; letter-spacing: -0.04em; }
.payment-card small { color: var(--muted); font-weight: 700; }
.notice-card p { margin: 8px 0 0; color: var(--muted); }

.price-layout.screen-active { display: grid; place-items: center; }
.price-shell { width: min(920px, 100%); display: grid; gap: 18px; }
.large-scan-form input { height: 58px; font-size: 1.14rem; }
.large-scan-form .primary-button { min-height: 58px; }
.price-result { min-height: 420px; padding: 26px; display: grid; place-items: center; }
.empty-state { text-align: center; color: var(--muted); }
.empty-state span { font-size: 3.4rem; display: block; margin-bottom: 10px; }
.empty-state h2 { color: var(--text); }
.price-product { width: min(560px, 100%); display: grid; gap: 18px; text-align: center; }
.price-product img { width: 180px; height: 180px; object-fit: cover; border-radius: 32px; background: var(--soft); justify-self: center; }
.price-product h2 { font-size: clamp(1.7rem, 4vw, 3rem); }
.price-lines { display: grid; gap: 10px; }
.price-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.7);
  border-radius: 20px;
  padding: 14px 16px;
  text-align: left;
}
.price-line span { color: var(--muted); font-weight: 750; }
.price-line strong { font-size: 1.35rem; }
.price-line.total strong { font-size: 2rem; letter-spacing: -0.05em; }
.price-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

@media (max-width: 1080px) {
  .pos-layout.screen-active { grid-template-columns: 1fr; }
  .payment-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .notice-card, .danger-button { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .app-shell { padding: 12px; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .mode-grid { grid-template-columns: 1fr; }
  .mode-card { min-height: 220px; }
  .scan-form, .price-actions, .payment-panel { grid-template-columns: 1fr; display: grid; }
  h1 { font-size: 3rem; }
}

/* S24 POS Web v3: Touchscreen-Optimierung */
html, body {
  min-height: 100%;
  overscroll-behavior: none;
}

body {
  overflow-x: hidden;
}

.app-shell {
  min-height: 100vh;
  padding: 16px;
  gap: 14px;
}

.topbar {
  position: sticky;
  top: 12px;
  z-index: 20;
  min-height: 74px;
  padding: 10px 12px;
}

.brand-mark {
  width: 50px;
  height: 50px;
}

.readonly-badge {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  color: #334155;
  background: rgba(255,255,255,.68);
  border: 1px solid var(--line);
  font-weight: 850;
}

.hero-panel {
  margin: 5vh auto 26px;
}

.mode-grid {
  max-width: 1060px;
}

.mode-card {
  min-height: 270px;
  padding: 32px;
}

.pos-layout.screen-active {
  grid-template-columns: minmax(300px, 350px) minmax(480px, 1fr) minmax(320px, 380px);
  height: calc(100vh - 104px);
  min-height: 680px;
  overflow: hidden;
}

.side-panel,
.payment-panel,
.content-panel {
  min-height: 0;
  max-height: 100%;
}

.panel-card,
.content-panel,
.price-result {
  box-shadow: 0 16px 50px rgba(15, 23, 42, 0.12);
}

.scanner-card {
  flex: 0 0 auto;
}

.scan-form input {
  height: 58px;
  font-size: 1.08rem;
  border-radius: 20px;
}

.primary-button,
.ghost-button,
.danger-button {
  min-height: 54px;
  border-radius: 18px;
  font-size: 1rem;
}

.category-list {
  gap: 10px;
  padding-right: 6px;
}

.category-button {
  min-height: 68px;
  padding: 14px;
  border-radius: 20px;
  font-size: 1.02rem;
  font-weight: 750;
}

.category-button small {
  min-width: 32px;
  height: 32px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(15,23,42,.06);
  opacity: 1;
  font-weight: 850;
}

.category-button.active small {
  background: rgba(255,255,255,.22);
}

.content-toolbar {
  min-height: 86px;
  padding: 18px 20px;
}

.content-body {
  padding: 18px;
}

.products-grid {
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 14px;
}

.product-card {
  min-height: 245px;
  border-radius: 24px;
  padding: 12px;
  transition: transform .14s ease, border-color .14s ease, background .14s ease;
}

.product-card:hover,
.product-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(15,23,42,.24);
  outline: none;
}

.product-card:active,
.category-button:active,
.payment-card:active,
.mode-card:active {
  transform: scale(.985);
}

.product-image-wrap {
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(248,250,252,.95), rgba(226,232,240,.9));
  font-weight: 950;
  color: var(--muted);
}

.product-info strong {
  font-size: 1rem;
  min-height: 2.3em;
}

.product-info small {
  font-size: 1.02rem;
  color: var(--text);
}

.cart-row {
  min-height: 76px;
  border-radius: 22px;
}

.qty-controls button {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  font-size: 1.25rem;
}

.qty-controls span {
  min-width: 34px;
  font-size: 1.1rem;
}

.payment-panel {
  gap: 12px;
}

.total-card {
  flex: 0 0 auto;
}

.total-card strong {
  font-size: 2.65rem;
}

.mini-cart-card {
  min-height: 160px;
  flex: 1 1 auto;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.compact-heading {
  margin-bottom: 10px;
}

.mini-cart-list {
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 4px;
}

.mini-cart-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.mini-cart-row strong {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: .95rem;
  line-height: 1.12;
}

.mini-cart-row small,
.mini-cart-more {
  color: var(--muted);
  font-weight: 750;
}

.mini-cart-row span {
  font-weight: 950;
  white-space: nowrap;
}

.mini-cart-more {
  margin: 4px 0 0;
  font-size: .9rem;
}

.payment-card {
  flex: 0 0 auto;
  min-height: 92px;
  border-radius: 24px;
  padding: 18px 20px;
}

.notice-card {
  flex: 0 0 auto;
  padding: 15px 18px;
}

.notice-card p {
  font-size: .94rem;
  line-height: 1.35;
}

.danger-button {
  flex: 0 0 auto;
}

.price-layout.screen-active {
  min-height: calc(100vh - 104px);
  align-items: start;
  padding-top: 24px;
}

.price-shell {
  width: min(1040px, 100%);
}

.price-scan-card {
  padding: 20px;
}

.price-result {
  min-height: min(560px, calc(100vh - 260px));
}

.price-product {
  width: min(680px, 100%);
}

.price-product img {
  width: 210px;
  height: 210px;
}

.price-line {
  min-height: 64px;
  border-radius: 22px;
}

.price-line.total {
  background: rgba(15,23,42,.94);
  color: white;
}

.price-line.total span {
  color: rgba(255,255,255,.72);
}

.price-actions .primary-button,
.price-actions .ghost-button {
  min-height: 62px;
}

@media (min-width: 1440px) {
  .pos-layout.screen-active {
    grid-template-columns: minmax(320px, 380px) minmax(620px, 1fr) minmax(340px, 410px);
  }

  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(185px, 1fr));
  }
}

@media (max-width: 1180px) {
  .pos-layout.screen-active {
    height: auto;
    min-height: 0;
    overflow: visible;
    grid-template-columns: 1fr;
  }

  .payment-panel {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mini-cart-card,
  .notice-card,
  .danger-button {
    grid-column: 1 / -1;
  }

  .mini-cart-card {
    max-height: 260px;
  }
}

@media (max-width: 720px) {
  .app-shell {
    padding: 10px;
  }

  .topbar {
    position: static;
  }

  .topbar-actions,
  .scan-form,
  .payment-panel,
  .price-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  .connection-pill,
  .readonly-badge,
  .ghost-button {
    justify-content: center;
  }

  .products-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-card {
    min-height: 210px;
  }
}

/* v3.1: Kategorie-Ebenen / Unterkategorie-Navigation */
.levels-card {
  flex: 1.1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.breadcrumb-chip {
  border: 1px solid var(--line);
  background: rgba(15,23,42,.06);
  color: var(--text);
  min-height: 34px;
  border-radius: 999px;
  padding: 0 11px;
  font-size: .82rem;
  font-weight: 850;
}

.subcategory-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: auto;
  padding-right: 4px;
}

.subcategory-button {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.72);
  border-radius: 18px;
  min-height: 58px;
  padding: 10px 12px;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
}

.subcategory-button.active {
  background: rgba(15,23,42,.92);
  color: white;
}

.subcategory-button.back-button {
  background: rgba(15,23,42,.07);
  color: var(--text);
}

.subcategory-button small {
  min-width: 34px;
  min-height: 30px;
  padding: 0 9px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(15,23,42,.06);
  opacity: 1;
  font-weight: 850;
  white-space: nowrap;
}

.subcategory-button.active small {
  background: rgba(255,255,255,.22);
}

.content-subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: .94rem;
  max-width: 760px;
}

.category-button:active,
.subcategory-button:active,
.breadcrumb-chip:active,
.product-card:active {
  transform: scale(.985);
}

@media (min-width: 1181px) {
  .categories-card {
    flex: 0.95;
  }

  .levels-card {
    flex: 1.15;
  }

  .subcategory-button {
    min-height: 64px;
    border-radius: 20px;
    font-size: .98rem;
  }
}

@media (max-width: 1180px) {
  .side-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .scanner-card {
    grid-column: 1 / -1;
  }

  .categories-card,
  .levels-card {
    max-height: 360px;
  }
}

@media (max-width: 720px) {
  .side-panel {
    display: flex;
  }

  .categories-card,
  .levels-card {
    max-height: none;
  }
}

/* v3.2: echte Kategorie → Unterkategorie → Produkte Navigation */
.topbar {
  position: relative;
  top: auto;
}

.pos-layout.screen-active {
  height: calc(100vh - 118px);
}

.subcategory-button.all-button {
  background: rgba(22, 101, 52, 0.09);
  border-color: rgba(22, 101, 52, 0.18);
}

.subcategory-button.all-button.active {
  background: rgba(22, 101, 52, 0.94);
  color: white;
}

.subcategory-overview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
}

.overview-card {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.78);
  border-radius: 24px;
  min-height: 150px;
  padding: 18px;
  color: var(--text);
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  box-shadow: 0 12px 35px rgba(15, 23, 42, 0.08);
  transition: transform .14s ease, border-color .14s ease, background .14s ease;
}

.overview-card:hover,
.overview-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(15,23,42,.25);
  outline: none;
}

.overview-card:active {
  transform: scale(.985);
}

.overview-card span {
  color: var(--muted);
  font-size: .82rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: .1em;
}

.overview-card strong {
  font-size: 1.35rem;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.overview-card small {
  color: var(--muted);
  font-weight: 850;
}

.overview-card.all-products-card {
  background: rgba(15, 23, 42, 0.93);
  color: white;
}

.overview-card.all-products-card span,
.overview-card.all-products-card small {
  color: rgba(255,255,255,.72);
}

.levels-card {
  flex: 1.35;
}

@media (max-width: 1180px) {
  .pos-layout.screen-active {
    height: auto;
  }
}

/* v3.3: Unterkategorien direkt unter der jeweiligen Hauptkategorie */
.levels-card {
  display: none !important;
}

.categories-card {
  flex: 1 1 auto;
}

.inline-subcategory-tree {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin: -2px 0 10px 0;
  padding: 10px 0 12px 14px;
  border-left: 3px solid rgba(15, 23, 42, 0.12);
}

.inline-subcategory-button {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.68);
  border-radius: 16px;
  min-height: 48px;
  padding: 8px 10px;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--text);
  font-weight: 800;
  font-size: .92rem;
}

.inline-subcategory-button.level-2 { margin-left: 12px; width: calc(100% - 12px); }
.inline-subcategory-button.level-3 { margin-left: 24px; width: calc(100% - 24px); }
.inline-subcategory-button.level-4 { margin-left: 36px; width: calc(100% - 36px); }

.inline-subcategory-button small {
  min-width: 32px;
  min-height: 28px;
  padding: 0 8px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(15,23,42,.06);
  opacity: 1;
  font-weight: 850;
  white-space: nowrap;
}

.inline-subcategory-button.active {
  background: rgba(15,23,42,.92);
  color: white;
}

.inline-subcategory-button.active small {
  background: rgba(255,255,255,.22);
}

.inline-subcategory-button.ancestor {
  border-color: rgba(15,23,42,.24);
  background: rgba(15,23,42,.08);
}

.inline-subcategory-button.all-inline {
  background: rgba(22, 101, 52, 0.08);
  border-color: rgba(22, 101, 52, 0.18);
}

.inline-subcategory-button.all-inline.active {
  background: rgba(22, 101, 52, 0.94);
  color: white;
}

.inline-tree-hint {
  margin: 0;
  color: var(--muted);
  font-size: .88rem;
  padding: 4px 2px;
}

.inline-subcategory-button:active {
  transform: scale(.985);
}

@media (max-width: 1180px) {
  .categories-card {
    grid-column: 1 / -1;
    max-height: 520px;
  }
}


/* v3.4: Nested Category UI Polish */
body {
  background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.16), transparent 32rem),
    radial-gradient(circle at bottom right, rgba(15, 23, 42, 0.10), transparent 34rem),
    linear-gradient(180deg, #f3f7fb 0%, #e8eff6 100%);
}

.topbar {
  min-height: 66px;
  padding: 9px 12px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 16px;
}

.brand strong { font-size: 1.05rem; }
.brand small { font-size: .88rem; }

.pos-layout.screen-active {
  grid-template-columns: minmax(310px, 360px) minmax(520px, 1fr) minmax(300px, 350px);
  gap: 14px;
  height: calc(100vh - 96px);
  min-height: 640px;
}

.side-panel,
.payment-panel {
  gap: 12px;
}

.panel-card {
  padding: 16px;
}

.scanner-card .panel-heading {
  margin-bottom: 10px;
}

.categories-card {
  overflow: hidden;
}

.category-list {
  gap: 8px;
}

.category-button {
  min-height: 60px;
  border-radius: 19px;
  background: rgba(255,255,255,.78);
  transition: transform .14s ease, border-color .14s ease, background .14s ease, box-shadow .14s ease;
}

.category-button .category-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.category-button .category-label::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: rgba(15, 23, 42, .20);
}

.category-button.active {
  background: #0f172a;
  color: white;
  border-color: rgba(15, 23, 42, .42);
  box-shadow: 0 12px 28px rgba(15, 23, 42, .18);
}

.category-button.active .category-label::before {
  background: white;
}

.inline-subcategory-tree {
  gap: 6px;
  margin: 2px 0 8px 0;
  padding: 8px 0 8px 14px;
  border-left: 3px solid rgba(15, 23, 42, .16);
}

.inline-subcategory-button {
  min-height: 42px;
  border-radius: 14px;
  padding: 7px 9px 7px 10px;
  font-size: .88rem;
  background: rgba(255,255,255,.62);
}

.inline-subcategory-button span {
  display: flex;
  align-items: center;
  gap: 7px;
}

.inline-subcategory-button span::before {
  content: "↳";
  color: var(--muted);
  font-weight: 900;
}

.inline-subcategory-button.all-inline span::before {
  content: "•";
  color: #166534;
}

.inline-subcategory-button.level-2 { margin-left: 10px; width: calc(100% - 10px); }
.inline-subcategory-button.level-3 { margin-left: 20px; width: calc(100% - 20px); }
.inline-subcategory-button.level-4 { margin-left: 30px; width: calc(100% - 30px); }

.inline-subcategory-button.active,
.inline-subcategory-button.all-inline.active {
  box-shadow: 0 10px 24px rgba(15, 23, 42, .14);
}

.inline-subcategory-button.active span::before,
.inline-subcategory-button.all-inline.active span::before {
  color: rgba(255,255,255,.86);
}

.inline-subcategory-button.ancestor {
  background: rgba(15,23,42,.075);
}

.content-toolbar {
  min-height: 78px;
  padding: 15px 18px;
}

.content-subtitle {
  margin-top: 5px;
  font-size: .9rem;
  font-weight: 700;
  color: #64748b;
}

.content-body {
  padding: 15px;
}

.products-grid {
  grid-template-columns: repeat(auto-fill, minmax(155px, 1fr));
  gap: 12px;
}

.product-card {
  min-height: 218px;
  border-radius: 22px;
  padding: 10px;
}

.product-image-wrap {
  border-radius: 18px;
  margin-bottom: 8px;
}

.product-info strong {
  font-size: .94rem;
  line-height: 1.12;
}

.product-info small {
  margin-top: 5px;
  font-size: 1rem;
  font-weight: 950;
}

.payment-panel {
  position: sticky;
  top: 0;
  align-self: start;
  max-height: calc(100vh - 96px);
}

.total-card strong {
  font-size: 2.35rem;
}

.mini-cart-card {
  min-height: 210px;
}

.payment-card {
  min-height: 78px;
  padding: 16px 18px;
}

.payment-card span {
  font-size: 1.18rem;
}

.notice-card {
  display: none;
}

.empty-state h2 {
  letter-spacing: -0.04em;
}

@media (min-width: 1440px) {
  .pos-layout.screen-active {
    grid-template-columns: minmax(330px, 390px) minmax(660px, 1fr) minmax(320px, 380px);
  }

  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(165px, 1fr));
  }
}

@media (max-width: 1180px) {
  .pos-layout.screen-active {
    height: auto;
    min-height: 0;
  }

  .payment-panel {
    position: static;
    max-height: none;
  }
}

@media (max-width: 720px) {
  .content-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .products-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}


/* v3.5: Unterkategorien ausschließlich inline unter der Hauptkategorie, kein separater Kartenbereich */
.levels-card { display: none !important; }
.inline-subcategory-tree { margin: -8px 0 12px 0; padding: 4px 0 8px 18px; border-left: 2px solid rgba(15, 23, 42, 0.10); }
.inline-subcategory-button { box-shadow: none; border-radius: 18px; min-height: 42px; margin-top: 6px; }
.inline-subcategory-button span { font-size: 14px; }
.inline-subcategory-button small { min-width: 34px; height: 28px; }
.inline-subcategory-button.all-inline { opacity: .82; }
.empty-state.flat-hint { background: transparent; border: 0; box-shadow: none; }


/* v3.7: Bedienung/Optik-Feinschliff - Unterkategorien bleiben inline unter der Hauptkategorie */
.pos-layout.screen-active {
  grid-template-columns: minmax(320px, 380px) minmax(560px, 1fr) minmax(300px, 360px);
  gap: 16px;
}

.categories-card {
  max-height: calc(100vh - 236px);
}

.category-list {
  gap: 9px;
  scrollbar-gutter: stable;
}

.category-button {
  min-height: 62px;
  padding: 11px 14px;
  border-radius: 21px;
}

.category-button small,
.inline-subcategory-button small {
  flex: 0 0 auto;
}

.category-button.active {
  margin-bottom: 0;
}

.inline-subcategory-tree {
  margin: -2px 0 13px 0;
  padding: 8px 0 7px 18px;
  border-left: 3px solid rgba(15, 23, 42, 0.14);
  gap: 5px;
}

.inline-subcategory-button {
  min-height: 40px;
  border-radius: 15px;
  padding: 7px 9px;
  background: rgba(255,255,255,.72);
  font-weight: 850;
}

.inline-subcategory-button span {
  min-width: 0;
  line-height: 1.12;
}

.inline-subcategory-button.level-2 { margin-left: 16px; width: calc(100% - 16px); }
.inline-subcategory-button.level-3 { margin-left: 32px; width: calc(100% - 32px); }
.inline-subcategory-button.level-4 { margin-left: 48px; width: calc(100% - 48px); }

.inline-subcategory-button.active {
  background: #0f172a;
  color: #fff;
  border-color: rgba(15,23,42,.5);
}

.inline-subcategory-button.ancestor {
  background: rgba(15,23,42,.08);
  border-color: rgba(15,23,42,.22);
}

.inline-subcategory-button.all-inline {
  min-height: 36px;
  opacity: .9;
  background: rgba(22, 101, 52, 0.075);
}

.content-toolbar {
  position: sticky;
  top: 0;
  z-index: 3;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(18px);
}

.content-subtitle {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(15,23,42,.055);
}

.products-grid {
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  align-items: stretch;
}

.product-card {
  min-height: 210px;
  height: 100%;
}

.product-image-wrap {
  min-height: 122px;
  background: linear-gradient(180deg, rgba(248,250,252,.95), rgba(226,232,240,.72));
  display: grid;
  place-items: center;
  color: #64748b;
  font-weight: 950;
}

.product-image-wrap img {
  max-height: 122px;
}

.product-info strong {
  min-height: 2.25em;
}

.payment-panel {
  position: sticky;
  top: 0;
}

.mini-cart-card {
  max-height: 360px;
}

@media (min-width: 1440px) {
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}

@media (max-width: 1180px) {
  .categories-card { max-height: 560px; }
  .payment-panel { position: static; }
  .content-toolbar { position: static; }
}

/* v3.8 verified inline subcategories: every subcategory stays directly below its main category. */
.category-list {
  gap: 10px;
}
.category-group {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-radius: 24px;
}
.category-group.active {
  background: rgba(15, 23, 42, 0.04);
  padding: 0 0 8px 0;
}
.category-group > .category-button {
  width: 100%;
}
.category-group .inline-subcategory-tree {
  margin: 6px 0 4px 18px;
  padding: 0 0 0 14px;
  border-left: 3px solid rgba(15, 23, 42, 0.14);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.category-group .inline-subcategory-button {
  min-height: 38px;
  width: calc(100% - 4px);
  border-radius: 16px;
  box-shadow: none;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(15, 23, 42, 0.08);
  font-size: 14px;
  padding: 8px 10px;
}
.category-group .inline-subcategory-button span {
  font-size: 14px;
  line-height: 1.15;
}
.category-group .inline-subcategory-button span::before {
  content: "↳";
  margin-right: 7px;
  opacity: .62;
}
.category-group .inline-subcategory-button.all-inline {
  opacity: .78;
  background: rgba(15, 23, 42, 0.045);
}
.category-group .inline-subcategory-button.all-inline span::before {
  content: "Alle";
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.category-group .inline-subcategory-button small {
  min-width: 30px;
  height: 26px;
  font-size: 12px;
}
.category-group .inline-subcategory-button.level-2 {
  margin-left: 12px;
  width: calc(100% - 16px);
}
.category-group .inline-subcategory-button.level-3 {
  margin-left: 24px;
  width: calc(100% - 28px);
}
.category-group .inline-subcategory-button.level-4 {
  margin-left: 36px;
  width: calc(100% - 40px);
}
.category-group .inline-subcategory-button.active,
.category-group .inline-subcategory-button.all-inline.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.category-group .inline-subcategory-button.ancestor {
  background: rgba(15, 23, 42, 0.09);
}