:root {
  color-scheme: dark;
  --bg: #0d1115;
  --bg-soft: #161c21;
  --panel: rgba(17, 24, 30, 0.92);
  --panel-strong: rgba(22, 30, 37, 0.98);
  --line: rgba(255, 255, 255, 0.08);
  --text: #f7f3eb;
  --muted: #b9c1c8;
  --accent: #f08a24;
  --accent-strong: #ffb347;
  --accent-cool: #3aa4a0;
  --danger: #ff6b4a;
  --ok: #89d185;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --radius-small: 16px;
  --font-main: 'Trebuchet MS', 'Avenir Next Condensed', 'Segoe UI', sans-serif;
  --font-display: 'Gill Sans', 'Trebuchet MS', sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(240, 138, 36, 0.2), transparent 30%),
    radial-gradient(circle at top right, rgba(58, 164, 160, 0.18), transparent 28%),
    linear-gradient(180deg, #12161b 0%, #0b0f13 100%);
  color: var(--text);
  font-family: var(--font-main);
}

body {
  padding: 20px 14px 40px;
}

body.cashier-locked {
  overflow-y: auto;
  padding: 10px 10px 16px;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 14px;
  padding: 14px 16px;
}

input:focus {
  outline: 2px solid rgba(240, 138, 36, 0.55);
  border-color: transparent;
}

.backdrop {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  opacity: 0.3;
}

.app-shell {
  position: relative;
  max-width: 1220px;
  margin: 0 auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  backdrop-filter: blur(18px);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 10px 14px;
  margin-bottom: 12px;
}

.topbar h1,
.section-heading h2,
.section-heading h3,
.auth-panel h2 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: 0.03em;
}

.topbar-brand {
  min-width: 0;
}

.topbar-title {
  font-size: clamp(1rem, 4.4vw, 1.35rem);
  line-height: 1.05;
  white-space: nowrap;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent-strong);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.network-pill,
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.84rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
}

.badge.highlight,
.metric-card.accent {
  background: linear-gradient(135deg, rgba(240, 138, 36, 0.16), rgba(240, 138, 36, 0.05));
  border-color: rgba(240, 138, 36, 0.24);
}

.main-layout {
  display: grid;
  gap: 18px;
}

.auth-panel {
  padding: 26px;
  display: grid;
  gap: 20px;
  max-width: 520px;
}

.stack-form,
.article-form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
}

label span {
  color: var(--muted);
  font-size: 0.94rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.metric-card {
  padding: 18px;
}

.metric-card strong {
  display: block;
  margin-top: 8px;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
}

.tab-bar {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 10px;
  margin-bottom: 16px;
}

.tab-button,
.primary-button,
.ghost-button {
  border: 1px solid var(--line);
  border-radius: 16px;
  min-height: 48px;
  padding: 10px 16px;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.tab-button:disabled,
.primary-button:disabled,
.ghost-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.tab-button,
.ghost-button {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.tab-button.is-active,
.ghost-button:hover,
.ghost-button:focus-visible {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.1);
}

.primary-button {
  background: linear-gradient(135deg, var(--accent), #f3a653);
  color: #1d1206;
  border-color: transparent;
  font-weight: 700;
}

.primary-button:hover,
.primary-button:focus-visible,
.tab-button:hover,
.tab-button:focus-visible,
.ghost-button:hover,
.ghost-button:focus-visible {
  transform: translateY(-1px);
}

.primary-button.huge {
  min-height: 68px;
  font-size: 1.2rem;
}

.panel-stack {
  display: grid;
  gap: 16px;
  min-height: 0;
}

.content-panel {
  padding: 20px;
}

.cashier-panel {
  position: relative;
  overflow: hidden;
}

.cashier-layout {
  display: grid;
  gap: 14px;
}

.split-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.section-heading.compact {
  margin-top: 24px;
}

.scanner-stage {
  position: relative;
  min-height: 340px;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #070a0c;
}

.scanner-stage video {
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: contain;
  display: block;
}

.scanner-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: rgba(9, 12, 14, 0.88);
  border-color: rgba(255, 255, 255, 0.12);
}

.scanner-overlay {
  position: absolute;
  inset: auto 16px 16px 16px;
  padding: 10px 14px;
  border-radius: 16px;
  background: rgba(9, 12, 14, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.button-row,
.button-grid,
.inline-form {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.button-row {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.button-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.inline-form {
  grid-template-columns: 1fr auto;
}

.sale-summary-button {
  width: 100%;
  display: grid;
  gap: 8px;
  text-align: left;
  color: var(--text);
  background: rgba(240, 138, 36, 0.08);
  border: 1px solid rgba(240, 138, 36, 0.16);
}

.sale-summary-button strong {
  font-size: clamp(2rem, 6vw, 3rem);
}

.summary-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.summary-pending,
.summary-hint {
  color: var(--muted);
}

.sheet-backdrop {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 12px;
  background: rgba(3, 6, 8, 0.75);
  backdrop-filter: blur(8px);
}

.cart-sheet {
  width: min(760px, 100%);
  max-height: min(78vh, 720px);
  padding: 18px;
  overflow: auto;
}

.manual-add-sheet {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  max-height: min(82vh, 760px);
  overflow: hidden;
}

.manual-add-body {
  min-height: 0;
  overflow: auto;
  padding-right: 2px;
}

.manual-article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  align-content: start;
}

.manual-article-card {
  display: grid;
  justify-items: start;
  gap: 8px;
  min-height: 126px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  color: var(--text);
  text-align: left;
}

.manual-article-card strong {
  font-size: 1.02rem;
}

.manual-add-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(240, 138, 36, 0.16);
  background: rgba(240, 138, 36, 0.08);
}

.manual-add-footer strong {
  font-size: clamp(1.4rem, 4.5vw, 2rem);
}

.cart-list,
.sales-list,
.article-grid,
.inventory-grid {
  display: grid;
  gap: 12px;
}

.cart-list {
  list-style: none;
  padding: 0;
  margin: 0;
  min-height: 180px;
}

.cart-item,
.article-card,
.inventory-card,
.sale-card {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  padding: 14px 16px;
}

.cart-item {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 12px;
  align-items: center;
}

.color-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.03);
}

.item-title,
.sale-card strong,
.article-card strong,
.inventory-card strong {
  display: block;
  font-size: 1.05rem;
}

.item-subline,
.status-line,
.muted,
.meta-line {
  color: var(--muted);
}

.status-line {
  min-height: 1.4em;
}

.sale-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  margin-top: 12px;
  border-radius: 18px;
  background: rgba(240, 138, 36, 0.08);
  border: 1px solid rgba(240, 138, 36, 0.16);
}

.sale-summary strong {
  font-size: 1.8rem;
}

.article-grid,
.inventory-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.article-meta,
.inventory-meta,
.sale-lines {
  display: grid;
  gap: 6px;
  margin-top: 10px;
}

.article-actions,
.inventory-actions,
.sale-card-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

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

.sale-card-actions {
  justify-items: end;
  align-items: center;
  margin-top: 0;
}

.danger-button {
  border-color: rgba(255, 107, 74, 0.28);
  color: #ffd3cb;
  background: rgba(255, 107, 74, 0.08);
}

.danger-button:hover,
.danger-button:focus-visible {
  border-color: rgba(255, 107, 74, 0.42);
  background: rgba(255, 107, 74, 0.14);
}

.low-stock {
  color: var(--danger);
}

.ok-stock {
  color: var(--ok);
}

.sale-card {
  display: grid;
  gap: 8px;
}

.sale-lines {
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.empty-state {
  padding: 24px;
  text-align: center;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  color: var(--muted);
}

.hidden {
  display: none !important;
}

body.cashier-locked .stats-grid {
  display: none;
}

body.cashier-locked .app-shell {
  min-height: 0;
}

body.cashier-locked .main-layout {
  min-height: unset;
  grid-template-rows: auto auto;
  gap: 10px;
}

body.cashier-locked .panel-stack {
  min-height: unset;
  height: auto;
}

body.cashier-locked .cashier-panel {
  height: auto;
  min-height: unset;
  padding: 14px;
}

body.cashier-locked .cashier-layout {
  height: auto;
  min-height: unset;
  grid-template-rows: auto auto auto auto;
  gap: 10px;
}

body.cashier-locked .scanner-column {
  min-height: unset;
  display: grid;
  grid-template-rows: auto auto auto;
  gap: 10px;
}

body.cashier-locked .scanner-stage,
body.cashier-locked .scanner-stage video {
  min-height: clamp(240px, 46svh, 440px);
  height: clamp(240px, 46svh, 440px);
}

body.cashier-locked .topbar {
  padding: 12px 14px;
  margin-bottom: 10px;
}

body.cashier-locked .topbar h1 {
  font-size: clamp(1.05rem, 4.4vw, 1.45rem);
}

body.cashier-locked .eyebrow {
  margin-bottom: 4px;
}

body.cashier-locked .tab-bar {
  padding: 8px;
  margin-bottom: 0;
}

body.cashier-locked .tab-button,
body.cashier-locked .primary-button,
body.cashier-locked .ghost-button {
  min-height: 46px;
  padding: 10px 12px;
}

body.cashier-locked .primary-button.huge {
  min-height: 56px;
}

body.cashier-locked .section-heading {
  margin-bottom: 0;
}

body.cashier-locked .scanner-overlay {
  inset: auto 10px 10px 10px;
  padding: 8px 10px;
}

body.cashier-locked .button-row,
body.cashier-locked .button-grid,
body.cashier-locked .inline-form {
  margin-top: 0;
  gap: 10px;
}

body.cashier-locked .sale-summary-button {
  gap: 6px;
  padding: 14px 16px;
}

body.cashier-locked .summary-hint,
body.cashier-locked .summary-pending,
body.cashier-locked .status-line,
body.cashier-locked .scanner-overlay {
  font-size: 0.92rem;
}

body.camera-active .topbar {
  display: none;
}

body.camera-active .tab-bar {
  display: none;
}

body.camera-active .cashier-panel {
  padding: 10px;
}

body.camera-active .main-layout {
  gap: 0;
}

body.camera-active .scanner-stage,
body.camera-active .scanner-stage video {
  min-height: clamp(340px, 66svh, 760px);
  height: clamp(340px, 66svh, 760px);
}

body.camera-active .button-row,
body.camera-active .button-grid,
body.camera-active .inline-form {
  gap: 6px;
}

body.camera-active .sale-summary-button {
  padding: 10px 12px;
}

body.camera-active .sale-summary-button strong {
  font-size: clamp(1.8rem, 5vw, 2.5rem);
}

body.camera-active .summary-hint,
body.camera-active .summary-pending,
body.camera-active .status-line,
body.camera-active .scanner-overlay {
  font-size: 0.88rem;
}

body.camera-active .scanner-badge {
  top: 10px;
  left: 10px;
}

@media (max-width: 920px) {
  .split-grid,
  .stats-grid,
  .button-grid {
    grid-template-columns: 1fr;
  }

  .inline-form,
  .button-row {
    grid-template-columns: 1fr;
  }

  .topbar {
    gap: 10px;
  }

  .topbar-actions {
    margin-left: auto;
  }
}

@media (max-width: 640px) {
  body {
    padding: 12px 10px 28px;
  }

  .panel,
  .content-panel,
  .auth-panel,
  .metric-card {
    border-radius: 20px;
  }

  .cart-item {
    grid-template-columns: auto 1fr auto;
  }

  .cart-item .ghost-button {
    grid-column: 1 / -1;
  }

  body.cashier-locked .app-shell {
    min-height: 0;
  }

  body.cashier-locked .button-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  body.cashier-locked .button-grid.cashier-actions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  body.cashier-locked .inline-form {
    grid-template-columns: 1fr auto;
  }

  body.camera-active .scanner-stage,
  body.camera-active .scanner-stage video {
    min-height: clamp(300px, 58svh, 560px);
    height: clamp(300px, 58svh, 560px);
  }
}

@media print {
  body {
    background: #fff;
    color: #000;
    padding: 0;
  }

  .backdrop,
  .topbar,
  .tab-bar,
  .button-grid,
  .button-row,
  .inline-form,
  .ghost-button,
  .primary-button,
  #logoutButton {
    display: none !important;
  }
}