:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --panel-subtle: #f8fafc;
  --ink: #111827;
  --muted: #667085;
  --line: #d7dde5;
  --line-strong: #b8c2cc;
  --blue: #1d4ed8;
  --blue-soft: #e8f0ff;
  --green: #15803d;
  --green-soft: #e9f8ef;
  --red: #b42318;
  --red-soft: #fff1f0;
  --amber: #b45309;
  --amber-soft: #fff7e6;
  --shadow: 0 14px 34px rgba(17, 24, 39, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(232, 240, 255, 0.75), rgba(244, 246, 248, 0) 280px),
    var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.4;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.app-shell {
  width: min(1180px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: env(safe-area-inset-top) 16px calc(118px + env(safe-area-inset-bottom));
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 0 -16px 14px;
  padding: 14px 16px 12px;
  border-bottom: 1px solid rgba(215, 221, 229, 0.85);
  background: rgba(244, 246, 248, 0.94);
  backdrop-filter: blur(16px);
}

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

.eyebrow,
.section-label {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  margin-top: 2px;
  font-size: 26px;
  font-weight: 950;
  letter-spacing: 0;
}

h2 {
  font-size: 17px;
  font-weight: 950;
  letter-spacing: 0;
}

#statusText,
.panel-head p {
  margin-top: 2px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}

.status-badge,
.small-pill,
.prediction-pill,
.confidence-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  border-radius: var(--radius);
  padding: 4px 8px;
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.status-badge {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
}

.status-badge.online {
  border-color: #a7e3b8;
  background: var(--green-soft);
  color: var(--green);
}

.status-badge.offline {
  border-color: #fed7aa;
  background: var(--amber-soft);
  color: var(--amber);
}

.btn,
.icon-btn {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--ink);
  font-weight: 850;
  cursor: pointer;
  touch-action: manipulation;
}

.btn {
  padding: 0 12px;
}

.btn:hover,
.icon-btn:hover {
  border-color: var(--line-strong);
}

.btn:disabled {
  color: #98a2b3;
  cursor: not-allowed;
}

.btn.primary {
  border-color: var(--blue);
  background: var(--blue);
  color: white;
}

.btn.ghost {
  background: var(--blue-soft);
  color: var(--blue);
}

.btn.success {
  border-color: var(--green);
  background: var(--green);
  color: white;
}

.btn.danger {
  border-color: #fecdca;
  background: var(--red-soft);
  color: var(--red);
}

.btn.small {
  min-height: 36px;
  font-size: 13px;
}

.icon-btn {
  width: 44px;
  font-size: 22px;
}

.hero-panel,
.metric-card,
.tool-panel,
.panel,
.category {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
  gap: 14px;
  align-items: center;
  padding: 14px;
}

.hero-copy {
  max-width: 680px;
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.hero-actions {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.metric-card {
  min-height: 86px;
  padding: 12px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.metric-card strong {
  display: block;
  margin-top: 6px;
  font-size: 26px;
  font-weight: 950;
  line-height: 1;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 12px;
  align-items: start;
}

.main-column,
.side-column {
  display: grid;
  gap: 12px;
}

.side-column {
  position: sticky;
  top: 104px;
}

.tool-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px auto auto;
  gap: 8px;
  padding: 12px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
}

input,
select {
  min-height: 44px;
  padding: 0 12px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(29, 78, 216, 0.14);
}

.category-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 0 4px;
  scrollbar-width: none;
}

.category-tabs::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  flex: 0 0 auto;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 11px;
  background: var(--panel);
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.tab-btn.active {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--blue);
}

.inventory {
  display: grid;
  gap: 12px;
}

.category {
  overflow: hidden;
}

.category-title {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: #111827;
  color: white;
  font-weight: 950;
}

.category-count {
  color: #cbd5e1;
  font-size: 13px;
  white-space: nowrap;
}

.item-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 78px 140px;
  gap: 10px;
  align-items: center;
  min-height: 62px;
  padding: 9px 10px 9px 14px;
  border-top: 1px solid var(--line);
}

.item-row:first-of-type {
  border-top: 0;
}

.item-main {
  min-width: 0;
}

.item-name {
  font-size: 17px;
  font-weight: 900;
  overflow-wrap: anywhere;
}

.item-meta {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.prediction-pill {
  border: 1px solid transparent;
  background: var(--green-soft);
  color: var(--green);
  cursor: pointer;
}

.prediction-pill.low {
  background: var(--amber-soft);
  color: var(--amber);
}

.prediction-pill:disabled {
  color: var(--muted);
  background: var(--panel-subtle);
  cursor: default;
}

.stepper {
  display: grid;
  grid-template-columns: 42px 56px 42px 46px;
}

.stepper button,
.qty {
  height: 42px;
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
}

.stepper button {
  font-size: 23px;
  font-weight: 950;
}

.minus {
  border-radius: var(--radius) 0 0 var(--radius);
  color: var(--red);
}

.plus {
  color: var(--green);
}

.plus-five {
  border-left: 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--blue);
  font-size: 15px;
}

.qty {
  width: 56px;
  border-right: 0;
  border-left: 0;
  text-align: center;
  font-size: 18px;
  font-weight: 950;
  -moz-appearance: textfield;
}

.qty::-webkit-inner-spin-button,
.qty::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.panel {
  padding: 12px;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.panel-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.small-pill {
  background: var(--blue-soft);
  color: var(--blue);
}

.review-panel {
  border-color: #c7d2fe;
}

.review-stats {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-subtle);
}

.review-stats span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.review-stats strong {
  display: block;
  margin-top: 2px;
  font-size: 22px;
  font-weight: 950;
}

.review-list {
  display: grid;
  gap: 8px;
}

.review-item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.review-item.good {
  border-color: #a7e3b8;
  background: var(--green-soft);
  color: var(--green);
}

.review-item.warn {
  border-color: #fed7aa;
  background: var(--amber-soft);
  color: var(--amber);
}

.recommendation-list {
  display: grid;
  gap: 8px;
}

.recommendation-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  min-height: 48px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-subtle);
}

.recommendation-name {
  font-weight: 900;
  overflow-wrap: anywhere;
}

.recommendation-meta {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.recommendation-action {
  min-width: 42px;
  min-height: 38px;
  border: 1px solid #a7e3b8;
  border-radius: var(--radius);
  background: var(--green-soft);
  text-align: center;
  color: var(--green);
  font-size: 18px;
  font-weight: 950;
  cursor: pointer;
}

.recommendation-action:hover {
  border-color: var(--green);
}

textarea {
  min-height: 240px;
  resize: vertical;
  padding: 12px;
  font-size: 15px;
  line-height: 1.45;
}

.add-form {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.form-hint {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.bottom-bar {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(84px + env(safe-area-inset-bottom));
  z-index: 40;
  max-width: calc(100vw - 32px);
  padding: 10px 14px;
  border-radius: var(--radius);
  background: #111827;
  color: white;
  font-weight: 850;
  transform: translateX(-50%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  padding: 18px;
  background: rgba(15, 23, 42, 0.48);
  backdrop-filter: blur(10px);
}

.modal-backdrop.open {
  display: grid;
  place-items: center;
}

.order-modal {
  width: min(1120px, 100%);
  max-height: min(840px, calc(100vh - 36px));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 28px 80px rgba(15, 23, 42, 0.28);
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-subtle);
}

.modal-head p {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.order-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}

.order-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.order-tabs::-webkit-scrollbar {
  display: none;
}

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

.order-modal-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 12px;
  padding: 14px 16px 16px;
  max-height: calc(100vh - 230px);
  overflow: auto;
}

.order-list {
  display: grid;
  gap: 8px;
  align-content: start;
}

.order-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.order-line-name {
  font-weight: 900;
  overflow-wrap: anywhere;
}

.order-line-meta {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}

.order-line-qty {
  min-width: 48px;
  padding: 6px 9px;
  border-radius: var(--radius);
  background: var(--green-soft);
  color: var(--green);
  text-align: center;
  font-size: 18px;
  font-weight: 950;
}

#orderCenterPreview {
  min-height: 420px;
}

.empty-state {
  padding: 14px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--muted);
  background: var(--panel-subtle);
  font-weight: 750;
}

@media (max-width: 980px) {
  .hero-panel,
  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .side-column {
    position: static;
  }

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

@media (max-width: 680px) {
  .app-shell {
    padding-right: 10px;
    padding-left: 10px;
  }

  .app-header {
    margin-right: -10px;
    margin-left: -10px;
    padding-right: 10px;
    padding-left: 10px;
  }

  h1 {
    font-size: 23px;
  }

  .status-badge {
    display: none;
  }

  .hero-actions,
  .metrics-grid,
  .tool-panel {
    grid-template-columns: 1fr 1fr;
  }

  .order-toolbar,
  .order-modal-grid {
    grid-template-columns: 1fr;
  }

  #orderCenterPreview {
    min-height: 220px;
  }

  .item-row {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .item-main {
    grid-column: 1 / -1;
  }

  .stepper {
    grid-template-columns: 40px 54px 40px 44px;
  }

  .qty {
    width: 54px;
  }
}

@media (max-width: 420px) {
  .hero-actions,
  .metrics-grid,
  .tool-panel {
    grid-template-columns: 1fr;
  }

  .bottom-bar {
    grid-template-columns: 1fr;
  }

  .toast {
    bottom: calc(128px + env(safe-area-inset-bottom));
  }

  .modal-backdrop {
    padding: 8px;
  }

  .order-actions {
    justify-content: stretch;
  }

  .order-actions .btn {
    flex: 1 1 100%;
  }
}