:root {
  --bg: #f4f6f8;
  --ink: #111820;
  --muted: #64707d;
  --line: #d8dee5;
  --panel: #ffffff;
  --panel-strong: #101820;
  --accent: #e53935;
  --accent-2: #00a676;
  --warn: #f4a261;
  --shadow: 0 18px 50px rgba(16, 24, 32, 0.12);
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

button, input, select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

button.danger {
  background: #fff2f2;
  color: #b3261e;
  border: 1px solid #ffc8c8;
  min-height: 36px;
  border-radius: 6px;
  font-weight: 900;
}

input, select {
  border: 1px solid var(--line);
  border-radius: 6px;
  min-height: 40px;
  padding: 0 10px;
  background: #fff;
  color: var(--ink);
}

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: radial-gradient(circle at 20% 20%, rgba(229, 57, 53, 0.12), transparent 30%), var(--bg);
}

.login-panel {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  display: grid;
  gap: 16px;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 150px;
  height: 42px;
  object-fit: contain;
  object-position: left center;
  flex: 0 0 auto;
}

.compact-logo {
  width: 118px;
  height: 34px;
}

.brand-row h1, .panel-title h2, .cart-toolbar h2 {
  margin: 0;
  letter-spacing: 0;
}

.brand-row h1 {
  font-size: 22px;
  line-height: 1.1;
}

.brand-row p, .cart-toolbar p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.brand-row.compact h1 { font-size: 18px; }

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  font-weight: 800;
}

.login-panel label, .dialog-card label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.primary, .secondary, .ghost {
  min-height: 40px;
  border-radius: 6px;
  padding: 0 14px;
  font-weight: 700;
}

.primary {
  background: var(--accent);
  color: #fff;
}

.secondary {
  background: #eef2f5;
  color: var(--ink);
  border: 1px solid var(--line);
}

.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.logout-button {
  color: #b3261e;
  border-color: #ffc8c8;
  background: #fff7f7;
}

.full { width: 100%; }
.form-message { min-height: 18px; color: var(--accent); margin: 0; }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}

.topbar {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 18px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.topbar-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.status-pill {
  min-width: 78px;
  padding: 8px 10px;
  border-radius: 999px;
  text-align: center;
  color: #fff;
  background: var(--accent-2);
  font-size: 13px;
  font-weight: 800;
}

.status-pill.offline { background: var(--warn); color: var(--ink); }

.inline-control {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.inline-control select {
  min-height: 36px;
}

.toggle-control {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 12px;
  background: #fff;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
}

.toggle-control input {
  width: 16px;
  height: 16px;
  min-height: 0;
  padding: 0;
  accent-color: var(--accent);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 310px) minmax(480px, 1fr) minmax(280px, 320px);
  gap: 14px;
  padding: 14px;
  min-width: 0;
}

.scan-panel, .cart-panel, .side-panel section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.scan-panel {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.panel-title, .cart-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.panel-title h2, .cart-toolbar h2 {
  font-size: 16px;
}

.panel-title span, .queue-box span, .last-product span, .total-box span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.scan-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}

.scan-form input {
  font-size: 18px;
  font-weight: 700;
  min-width: 0;
}

.scan-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.camera {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 6px;
  background: #101820;
}

.camera-scanner {
  width: 100%;
  min-height: 240px;
  border-radius: 6px;
  overflow: hidden;
  background: #101820;
}

.camera-scanner video {
  width: 100% !important;
  border-radius: 6px;
}

.camera-scanner__dash_region,
.camera-scanner__dashboard_section {
  display: none !important;
}

.last-product, .queue-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
}

.thumb {
  width: 54px;
  height: 54px;
  border-radius: 6px;
  object-fit: cover;
  background: #eef2f5;
  border: 1px solid var(--line);
}

.thumb.placeholder {
  display: grid;
  place-items: center;
  color: var(--muted);
  font-weight: 900;
}

.muted {
  color: var(--muted);
  margin: 0;
}

.last-product {
  display: grid;
  gap: 6px;
}

.last-product strong {
  line-height: 1.25;
}

.last-product small {
  color: var(--muted);
}

.queue-box {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.queue-box strong {
  display: block;
  font-size: 28px;
}

.cart-panel {
  min-width: 0;
  display: grid;
  grid-template-rows: auto minmax(260px, 1fr) auto;
  overflow: hidden;
}

.cart-toolbar {
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.segmented {
  display: inline-grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}

.segmented button {
  min-width: 90px;
  min-height: 38px;
  background: #fff;
  font-weight: 800;
}

.segmented button.active {
  background: var(--panel-strong);
  color: #fff;
}

.cart-table-wrap {
  position: relative;
  overflow: auto;
  min-width: 0;
}

.cart-list {
  display: grid;
}

.cart-row {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) 116px 116px 90px 118px 42px;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.cart-row.header {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #fafbfc;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  font-weight: 800;
}

.product-cell {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  min-width: 0;
}

.product-cell strong {
  display: block;
  overflow-wrap: anywhere;
}

.product-cell span, .muted {
  color: var(--muted);
  font-size: 12px;
}

.qty-control {
  display: inline-grid;
  grid-template-columns: 30px 38px 30px;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}

.price-input {
  width: 100%;
  min-height: 34px;
  padding: 0 8px;
  font-weight: 800;
}

.qty-control button {
  background: #f4f6f8;
  font-weight: 900;
}

.qty-control span {
  display: grid;
  place-items: center;
  font-weight: 800;
}

.remove-btn {
  width: 34px;
  height: 34px;
  border-radius: 6px;
  background: #fff1f1;
  color: var(--accent);
  font-weight: 900;
}

.empty-cart {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-weight: 800;
}

.checkout-strip {
  display: grid;
  grid-template-columns: 170px 1fr 210px 300px;
  gap: 12px;
  align-items: end;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
  background: #fff;
}

.currency-box label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.currency-box span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

.discount-box {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.total-box {
  display: grid;
  justify-items: end;
  gap: 2px;
}

.total-box strong {
  font-size: 28px;
  line-height: 1;
}

.total-box em {
  color: var(--accent);
  font-style: normal;
  font-weight: 900;
}

.checkout {
  height: 58px;
  font-size: 16px;
}

.checkout-actions {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(140px, 1fr);
  gap: 10px;
  align-items: stretch;
}

.clear-cart-button {
  height: 58px;
  color: #b3261e;
  border-color: #ffc8c8;
  background: #fff7f7;
  font-size: 15px;
}

.side-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}

.side-panel section {
  padding: 14px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.metric-grid div {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
}

.metric-grid span {
  color: var(--muted);
  font-size: 12px;
}

.metric-grid strong {
  display: block;
  margin-top: 4px;
  font-size: 18px;
}

.history-list, .error-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  max-height: 220px;
  overflow: auto;
}

.history-item, .error-item {
  padding: 10px;
  border-radius: 6px;
  background: #f8fafb;
  border: 1px solid var(--line);
  font-size: 13px;
}

.history-item strong, .error-item strong {
  display: block;
}

.error-item { border-color: #ffc7c7; background: #fff6f6; }

.event-note-box {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.event-note-box textarea {
  width: 100%;
  min-height: 76px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.sale-history-item {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  background: #fff;
  font-size: 13px;
}

.sale-history-item.returned {
  background: #f8fafb;
  color: var(--muted);
}

.sale-history-item strong,
.sale-history-item span,
.sale-history-item small,
.sale-history-item em {
  display: block;
}

.sale-history-item span {
  margin-top: 3px;
}

.sale-history-item small,
.sale-history-item em {
  color: var(--muted);
  margin-top: 3px;
  font-style: normal;
}

.link-button {
  background: transparent;
  color: var(--accent);
  font-weight: 800;
}

dialog {
  border: 0;
  border-radius: var(--radius);
  padding: 0;
  box-shadow: var(--shadow);
}

dialog::backdrop {
  background: rgba(16, 24, 32, 0.38);
}

.dialog-card {
  width: min(430px, calc(100vw - 24px));
  padding: 20px;
  display: grid;
  gap: 14px;
}

.admin-dialog {
  width: min(920px, calc(100vw - 24px));
}

.returns-dialog {
  width: min(1040px, calc(100vw - 24px));
}

.dialog-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.returns-list {
  display: grid;
  gap: 8px;
  max-height: min(68vh, 680px);
  overflow: auto;
}

.admin-form {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  align-items: end;
}

.admin-form button {
  min-height: 40px;
}

.user-list {
  display: grid;
  gap: 8px;
  max-height: 420px;
  overflow: auto;
}

.user-row {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) 130px 120px 240px;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
}

.user-row strong,
.user-row small {
  display: block;
}

.user-row small {
  color: var(--muted);
}

.user-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.role-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 900;
  text-align: center;
}

.role-pill.admin {
  background: #fff2f2;
  border-color: #ffc8c8;
  color: #b3261e;
}

.must-change {
  color: var(--warn);
  font-weight: 800;
}

.admin-stats {
  display: grid;
  gap: 12px;
}

.operator-stats {
  display: grid;
  gap: 8px;
}

.operator-row {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) repeat(4, minmax(92px, auto));
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  background: #fff;
  font-size: 13px;
}

.operator-row strong,
.operator-row small {
  display: block;
}

.operator-row small {
  color: var(--muted);
}

.dialog-card h2 {
  margin: 0;
}

.dialog-card menu {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 0;
  margin: 4px 0 0;
}

.reservation-box {
  padding: 10px;
  border: 1px solid var(--line);
  background: #f8fafb;
  border-radius: 6px;
  color: var(--muted);
  font-size: 13px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--panel-strong);
  color: #fff;
  border-radius: 999px;
  padding: 12px 18px;
  box-shadow: var(--shadow);
  font-weight: 800;
  z-index: 20;
}

@media (max-width: 1180px) {
  .workspace {
    grid-template-columns: minmax(260px, 300px) minmax(0, 1fr);
  }

  .side-panel {
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 980px) {
  .cart-row,
  .cart-row.header {
    grid-template-columns: minmax(220px, 1fr) 108px 108px 82px 110px 38px;
  }
}

@media (max-width: 820px) {
  .topbar {
    height: auto;
    padding: 12px;
    align-items: flex-start;
    flex-direction: column;
  }

  .workspace {
    grid-template-columns: 1fr;
    padding: 10px;
  }

  .side-panel {
    grid-template-columns: 1fr;
  }

  .checkout-strip {
    grid-template-columns: 1fr;
  }

  .checkout-actions {
    grid-template-columns: 1fr;
  }

  .admin-form,
  .user-row,
  .operator-row {
    grid-template-columns: 1fr;
  }

  .total-box {
    justify-items: start;
  }
}