:root {
  --workflow-paper: #f4f3ef;
  --workflow-surface: #fbfaf7;
  --workflow-ink: #171815;
  --workflow-muted: #666860;
  --workflow-line: #d9d8d1;
  --workflow-soft-line: #e9e7e0;
  --workflow-accent: #e75b2a;
  --workflow-accent-dark: #b93d16;
  --workflow-accent-soft: #f7dfd5;
  --workflow-success: #297256;
  --workflow-warning: #9b5b16;
  --workflow-shadow: 0 18px 50px rgba(62, 55, 42, 0.09);
  --workflow-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  background: var(--workflow-paper);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--workflow-ink);
  background:
    radial-gradient(circle at 86% 4%, rgba(231, 91, 42, 0.055), transparent 26rem),
    var(--workflow-paper);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.19;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.11'/%3E%3C/svg%3E");
}

[hidden] {
  display: none !important;
}

a {
  color: inherit;
}

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

button,
a,
input,
select,
textarea,
summary {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(231, 91, 42, 0.36);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 30;
  padding: 0.7rem 0.9rem;
  color: #fff;
  background: var(--workflow-ink);
  transform: translateY(-160%);
  transition: transform 180ms var(--workflow-ease);
}

.skip-link:focus {
  transform: translateY(0);
}

.app-header {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 4.5rem;
  padding: 0.7rem clamp(1rem, 4vw, 3.5rem);
  border: 0;
  border-bottom: 1px solid var(--workflow-line);
  color: var(--workflow-ink);
  background: rgba(244, 243, 239, 0.9);
  backdrop-filter: blur(18px);
}

.brand-block {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  width: max-content;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.45rem;
  height: 2.45rem;
  place-items: center;
  border: 1px solid var(--workflow-ink);
  border-radius: 0.35rem;
  color: #fff;
  background: var(--workflow-ink);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.brand-copy {
  display: grid;
  gap: 0.05rem;
}

.brand-copy .brand-kicker {
  margin: 0;
  color: var(--workflow-accent-dark);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.brand-copy strong {
  color: var(--workflow-ink);
  font-size: 0.96rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.header-nav {
  display: none;
  align-items: center;
  gap: 1.6rem;
}

.header-nav a {
  position: relative;
  padding: 0.45rem 0;
  color: var(--workflow-muted);
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 180ms ease;
}

.header-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  content: "";
  background: var(--workflow-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms var(--workflow-ease);
}

.header-nav a:hover,
.header-nav a.is-active {
  color: var(--workflow-ink);
}

.header-nav a.is-active::after {
  transform: scaleX(1);
}

.local-status {
  display: inline-flex;
  align-items: center;
  justify-self: end;
  gap: 0.45rem;
  margin: 0;
  color: var(--workflow-muted);
  font-size: 0.72rem;
  white-space: nowrap;
}

.status-light {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--workflow-success);
  box-shadow: 0 0 0 4px rgba(41, 114, 86, 0.1);
}

.business-command {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  width: min(100% - 2rem, 86rem);
  margin: 0 auto;
  padding: clamp(3.2rem, 8vw, 7rem) 0 clamp(2.6rem, 6vw, 5rem);
  border: 0;
  color: var(--workflow-ink);
  background: transparent;
}

.command-copy {
  align-self: center;
  max-width: 48rem;
}

.command-kicker,
.result-kicker,
.weight-kicker,
.ledger-label {
  margin: 0 0 0.8rem;
  color: var(--workflow-accent-dark);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.command-copy h2 {
  max-width: 12ch;
  margin: 0;
  color: var(--workflow-ink);
  font-size: clamp(2.45rem, 9vw, 6.6rem);
  font-weight: 760;
  letter-spacing: -0.075em;
  line-height: 0.96;
  text-wrap: balance;
}

.command-copy > p:last-of-type {
  max-width: 43rem;
  margin: 1.55rem 0 0;
  color: var(--workflow-muted);
  font-size: clamp(0.98rem, 1.6vw, 1.15rem);
  line-height: 1.8;
  text-wrap: pretty;
}

.hero-action {
  display: inline-flex;
  align-items: center;
  gap: 1.8rem;
  min-height: 3.25rem;
  margin-top: 1.7rem;
  padding: 0 1.15rem;
  border: 1px solid var(--workflow-ink);
  border-radius: 0.38rem;
  color: #fff;
  background: var(--workflow-ink);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 200ms var(--workflow-ease), background 200ms ease;
}

.hero-action span {
  color: #ffc3ab;
  font-size: 1.1rem;
}

.hero-action:hover {
  background: #2a2b27;
  transform: translateY(-2px);
}

.hero-action:active {
  transform: translateY(1px) scale(0.99);
}

.command-ledger {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-self: end;
  overflow: hidden;
  border: 1px solid var(--workflow-line);
  border-radius: 0.75rem;
  color: var(--workflow-ink);
  background: rgba(251, 250, 247, 0.88);
  box-shadow: var(--workflow-shadow);
}

.command-ledger .ledger-label,
.command-ledger .ledger-threshold {
  grid-column: 1 / -1;
}

.command-ledger .ledger-label {
  padding: 1rem 1rem 0;
}

.command-ledger > div {
  display: grid;
  min-width: 0;
  padding: 1rem 0.65rem 1.15rem;
  border-right: 1px solid var(--workflow-soft-line);
}

.command-ledger > div:nth-of-type(3) {
  border-right: 0;
}

.command-ledger span {
  color: var(--workflow-muted);
  font-size: 0.68rem;
}

.command-ledger strong {
  margin-top: 0.45rem;
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: clamp(1.25rem, 5vw, 2.1rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.06em;
}

.command-ledger small {
  margin-top: 0.1rem;
  color: var(--workflow-muted);
  font-size: 0.65rem;
}

.command-ledger-accent strong {
  color: var(--workflow-accent-dark);
}

.command-ledger .ledger-threshold {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  margin: 0;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--workflow-soft-line);
  color: var(--workflow-muted);
  background: #efeee9;
}

.ledger-threshold span {
  font-size: 0.65rem;
  font-weight: 650;
}

.business-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(100% - 2rem, 86rem);
  margin: 0 auto;
  padding: 0;
  border: 0;
  border-top: 1px solid var(--workflow-line);
  border-bottom: 1px solid var(--workflow-line);
  background: transparent;
  list-style: none;
}

.business-flow li {
  position: relative;
  display: grid;
  align-content: start;
  min-width: 0;
  padding: 1rem 0.65rem 1.15rem;
  color: var(--workflow-muted);
  background: transparent;
  transition: color 220ms ease, background 220ms ease;
}

.business-flow li + li {
  border-left: 1px solid var(--workflow-line);
}

.business-flow li::before {
  position: absolute;
  top: -1px;
  right: 0;
  left: 0;
  height: 3px;
  content: "";
  background: var(--workflow-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 260ms var(--workflow-ease);
}

.business-flow li.is-current {
  color: var(--workflow-ink);
  background: rgba(251, 250, 247, 0.58);
}

.business-flow li.is-current::before {
  transform: scaleX(1);
}

.business-flow li.is-complete {
  color: var(--workflow-success);
}

.business-flow li > span {
  color: inherit;
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.65rem;
}

.business-flow strong {
  margin-top: 0.35rem;
  color: inherit;
  font-size: 0.84rem;
  font-weight: 680;
}

.business-flow small {
  display: none;
  margin-top: 0.25rem;
  color: var(--workflow-muted);
  font-size: 0.68rem;
  line-height: 1.4;
}

.tool-switcher {
  position: sticky;
  top: 0;
  z-index: 8;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(100% - 1rem, 52rem);
  margin: 1rem auto 0;
  padding: 0.35rem;
  border: 1px solid rgba(217, 216, 209, 0.9);
  border-radius: 0.7rem;
  background: rgba(244, 243, 239, 0.9);
  box-shadow: 0 10px 30px rgba(62, 55, 42, 0.08);
  backdrop-filter: blur(18px);
}

.tool-tab {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 0.55rem;
  min-width: 0;
  min-height: 3.5rem;
  padding: 0.55rem 0.65rem;
  border: 0;
  border-radius: 0.5rem;
  color: var(--workflow-muted);
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease, transform 180ms var(--workflow-ease);
}

.tool-tab > span {
  grid-row: 1 / 3;
  color: var(--workflow-accent-dark);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.72rem;
}

.tool-tab strong {
  overflow: hidden;
  color: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tool-tab small {
  display: none;
  color: var(--workflow-muted);
  font-size: 0.64rem;
}

.tool-tab:hover {
  color: var(--workflow-ink);
  background: rgba(251, 250, 247, 0.82);
}

.tool-tab.is-active {
  color: #fff;
  background: var(--workflow-ink);
}

.tool-tab.is-active > span,
.tool-tab.is-active small {
  color: #ffc3ab;
}

.tool-tab:active {
  transform: scale(0.985);
}

.workbench,
.weight-workbench {
  width: min(100% - 1rem, 86rem);
  margin: 0.8rem auto 4rem;
  border: 0;
  background: transparent;
}

.workbench {
  display: grid;
  grid-template-areas:
    "control"
    "viewer"
    "result";
  gap: 0.75rem;
}

.control-panel,
.viewer-panel,
.result-panel,
.weight-summary,
.weight-editor {
  overflow: hidden;
  border: 1px solid var(--workflow-line);
  border-radius: 0.8rem;
  color: var(--workflow-ink);
  background: rgba(251, 250, 247, 0.9);
  box-shadow: 0 12px 34px rgba(62, 55, 42, 0.055);
}

.control-panel {
  grid-area: control;
}

.viewer-panel {
  grid-area: viewer;
}

.result-panel {
  grid-area: result;
}

.panel-section,
.count-section,
.metric-section,
.next-step-section {
  padding: 1.15rem;
  border-color: var(--workflow-soft-line);
}

.panel-section h2,
.count-section h2,
.weight-summary h2,
.weight-editor h2,
.quote-request h3 {
  color: var(--workflow-ink);
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.panel-section h2,
.count-section h2 {
  font-size: 1rem;
}

.drop-zone {
  display: grid;
  min-height: 9rem;
  place-content: center;
  gap: 0.35rem;
  padding: 1.2rem;
  border: 1.5px dashed #aaa99f;
  border-radius: 0.65rem;
  color: var(--workflow-ink);
  background: #f0efe9;
  text-align: center;
  cursor: pointer;
  transition: border-color 200ms ease, background 200ms ease, transform 200ms var(--workflow-ease);
}

.drop-zone:hover,
.drop-zone.is-dragging {
  border-color: var(--workflow-accent);
  background: var(--workflow-accent-soft);
  transform: translateY(-2px);
}

.drop-zone strong {
  color: var(--workflow-ink);
  font-size: 0.92rem;
}

.drop-zone span,
.upload-privacy,
.helper-text,
.public-note,
.legal-link {
  color: var(--workflow-muted);
  font-size: 0.72rem;
  line-height: 1.6;
}

.primary-button,
.secondary-button,
.text-button {
  min-height: 3rem;
  border-radius: 0.42rem;
  font-weight: 680;
  transition: transform 180ms var(--workflow-ease), background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.primary-button {
  border: 1px solid var(--workflow-ink);
  color: #fff;
  background: var(--workflow-ink);
}

.primary-button:hover:not(:disabled) {
  border-color: #292a26;
  background: #292a26;
  transform: translateY(-2px);
}

.primary-button:active:not(:disabled),
.secondary-button:active:not(:disabled) {
  transform: translateY(1px) scale(0.99);
}

.secondary-button {
  border-color: var(--workflow-line);
  color: var(--workflow-ink);
  background: #f0efe9;
}

.secondary-button:hover:not(:disabled) {
  border-color: #b4b2a8;
  background: #e8e6df;
}

.text-button {
  color: var(--workflow-accent-dark);
}

input[type="range"] {
  accent-color: var(--workflow-accent);
}

input[type="text"],
input[type="tel"],
input[type="number"],
select,
textarea {
  min-height: 3rem;
  border: 1px solid var(--workflow-line);
  border-radius: 0.4rem;
  color: var(--workflow-ink);
  background: #fff;
  box-shadow: inset 0 1px 0 rgba(30, 28, 22, 0.025);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--workflow-accent);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(231, 91, 42, 0.14);
}

.viewer-toolbar,
.viewer-footer {
  border-color: var(--workflow-soft-line);
  background: #f5f4ef;
}

.viewer-toolbar {
  display: grid;
  gap: 0.7rem;
  padding: 0.75rem;
}

.mode-group,
.viewer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.mode-button {
  min-height: 2.5rem;
  border-radius: 0.35rem;
}

.mode-button.is-active {
  color: #fff;
  background: var(--workflow-ink);
}

.canvas-stage {
  min-height: 25rem;
  background:
    linear-gradient(rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.02)),
    #242622;
}

.empty-state,
.loading-state {
  color: #f5f4ef;
}

.empty-state p,
.loading-state p {
  max-width: 34rem;
  color: #bebfb8;
  line-height: 1.7;
}

.empty-visual span {
  border-color: #b8b9b2;
}

.viewer-footer {
  display: flex;
  overflow-x: auto;
  gap: 0.9rem;
  padding: 0.75rem;
  white-space: nowrap;
}

.report-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.8rem;
}

.report-heading .result-kicker {
  margin-bottom: 0.25rem;
}

.report-heading h2 {
  margin: 0;
}

.report-state {
  padding: 0.38rem 0.5rem;
  border: 1px solid var(--workflow-line);
  border-radius: 0.28rem;
  color: var(--workflow-muted);
  background: #f0efe9;
  font-size: 0.65rem;
  font-weight: 700;
}

.report-state[data-state="good"] {
  border-color: rgba(41, 114, 86, 0.28);
  color: var(--workflow-success);
  background: rgba(41, 114, 86, 0.08);
}

.report-state[data-state="review"] {
  border-color: rgba(155, 91, 22, 0.28);
  color: var(--workflow-warning);
  background: rgba(155, 91, 22, 0.08);
}

.count-value {
  margin: 1.1rem 0 0;
  color: var(--workflow-ink);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: clamp(4rem, 18vw, 7rem);
  font-weight: 680;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.09em;
  line-height: 0.9;
}

.count-unit {
  margin: 0.45rem 0 1.2rem;
  color: var(--workflow-muted);
  font-size: 0.74rem;
}

.count-range {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.8rem 0;
  border-top: 1px solid var(--workflow-soft-line);
  border-bottom: 1px solid var(--workflow-soft-line);
}

.count-range span {
  color: var(--workflow-muted);
  font-size: 0.7rem;
}

.count-range strong {
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
}

.report-disclaimer {
  margin: 0.85rem 0 0;
  color: var(--workflow-muted);
  font-size: 0.68rem;
  line-height: 1.65;
}

.next-step-section {
  color: var(--workflow-ink);
  background: var(--workflow-accent-soft);
}

.next-step-section h2 {
  font-size: 1rem;
}

.next-step-section .primary-button {
  border-color: var(--workflow-accent-dark);
  background: var(--workflow-accent-dark);
}

.metric-row {
  border-color: var(--workflow-soft-line);
}

.metric-row strong {
  font-family: Consolas, "SFMono-Regular", monospace;
  font-variant-numeric: tabular-nums;
}

.correction-section,
.export-section,
.compact-section,
.settings-section .helper-text {
  color: var(--workflow-muted);
}

.weight-workbench {
  grid-template-columns: minmax(0, 1fr);
  display: grid;
  gap: 0.75rem;
}

.weight-summary {
  position: relative;
  padding: 1.1rem;
}

.weight-summary > h2 {
  margin-top: 0;
}

.weight-total-block {
  border: 0;
  border-radius: 0.65rem;
  color: #fff;
  background: var(--workflow-ink);
}

.weight-total-block > span,
.weight-total-block > output {
  color: #c9cac4;
}

.weight-total-block strong,
.weight-total-block output,
.weight-total-block small {
  font-variant-numeric: tabular-nums;
}

.weight-total-block small {
  display: block;
  margin-top: 0.8rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: #ffc3ab;
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.72rem;
}

.detected-count-box,
.project-batch,
.weight-breakdown,
.weight-actions {
  border-color: var(--workflow-soft-line);
  border-radius: 0.55rem;
  background: #f2f1eb;
}

.weight-breakdown > div {
  border-color: var(--workflow-soft-line);
}

.weight-breakdown strong,
.project-batch-totals strong {
  font-family: Consolas, "SFMono-Regular", monospace;
  font-variant-numeric: tabular-nums;
}

.threshold-track {
  overflow: visible;
  height: 0.45rem;
  border-radius: 0;
  background: #d8d6ce;
}

.threshold-track::before {
  position: absolute;
  left: 20%;
  width: 2px;
  height: 0.85rem;
  content: "";
  background: var(--workflow-warning);
  transform: translateY(-0.2rem);
}

#projectThresholdBar {
  border-radius: 0;
  background: var(--workflow-accent);
  transition: width 360ms var(--workflow-ease);
}

.weight-editor {
  min-width: 0;
}

.weight-editor-inner {
  padding: 1.1rem;
}

.weight-editor-header {
  display: grid;
  gap: 0.65rem;
  padding-bottom: 1.2rem;
  border-color: var(--workflow-soft-line);
}

.weight-editor-header h2 {
  margin: 0;
  font-size: clamp(1.45rem, 5vw, 2rem);
}

.weight-editor-header p {
  max-width: 58ch;
  color: var(--workflow-muted);
  line-height: 1.65;
}

.weight-part {
  overflow: hidden;
  border: 1px solid var(--workflow-line);
  border-radius: 0.55rem;
  background: #f7f6f1;
}

.weight-part + .weight-part {
  margin-top: 0.55rem;
}

.weight-part[open] {
  background: #fff;
  box-shadow: 0 10px 26px rgba(62, 55, 42, 0.055);
}

.weight-part summary {
  min-height: 4rem;
  padding: 0.75rem 0.9rem;
  cursor: pointer;
}

.weight-part summary output {
  color: var(--workflow-accent-dark);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-variant-numeric: tabular-nums;
}

.weight-part-body {
  border-color: var(--workflow-soft-line);
}

.weight-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.weight-fields label,
.material-row label,
.quote-fields label,
.quote-note {
  color: var(--workflow-muted);
  font-size: 0.72rem;
  font-weight: 600;
}

.quote-request {
  scroll-margin-top: 5.5rem;
  margin-top: 1.25rem;
  padding: clamp(1.1rem, 4vw, 2rem);
  border: 1px solid var(--workflow-line);
  border-radius: 0.75rem;
  background: #edece6;
}

.quote-request-heading {
  display: grid;
  max-width: 48rem;
}

.quote-request-heading h3 {
  margin: 0;
  font-size: clamp(1.55rem, 6vw, 2.5rem);
  line-height: 1.05;
}

.quote-request-heading > p:last-child {
  color: var(--workflow-muted);
  line-height: 1.75;
}

.quote-form {
  margin-top: 1.3rem;
}

.quote-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.quote-submit {
  width: 100%;
  min-height: 3.35rem;
  margin-top: 0.9rem;
  border-color: var(--workflow-accent-dark);
  background: var(--workflow-accent-dark);
}

.quote-result {
  border-radius: 0.65rem;
  background: #fff;
}

.quote-price {
  color: var(--workflow-accent-dark);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-variant-numeric: tabular-nums;
}

.weight-caveat {
  color: var(--workflow-muted);
  background: transparent;
}

.site-footer {
  display: grid;
  gap: 1rem;
  width: min(100% - 2rem, 86rem);
  margin: 0 auto;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--workflow-line);
  color: var(--workflow-muted);
  font-size: 0.72rem;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer a {
  color: var(--workflow-ink);
  font-weight: 650;
  text-underline-offset: 0.22rem;
}

.error-banner {
  z-index: 20;
  border: 1px solid rgba(155, 91, 22, 0.3);
  border-radius: 0.55rem;
  color: var(--workflow-ink);
  background: #fff5e7;
  box-shadow: var(--workflow-shadow);
}

.view-entering .workbench:not([hidden]),
.view-entering .weight-workbench:not([hidden]) {
  animation: workflow-enter 340ms var(--workflow-ease) both;
}

@keyframes workflow-enter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 42rem) {
  .app-header {
    grid-template-columns: 1fr auto auto;
    gap: 2rem;
  }

  .header-nav {
    display: flex;
  }

  .business-flow li {
    padding: 1.15rem 1.2rem 1.3rem;
  }

  .business-flow small,
  .tool-tab small {
    display: block;
  }

  .tool-tab {
    padding-inline: 0.85rem;
  }

  .viewer-toolbar {
    grid-template-columns: auto 1fr;
    align-items: center;
  }

  .viewer-actions {
    justify-content: flex-end;
  }

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

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

  .site-footer {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 64rem) {
  .business-command {
    grid-template-columns: minmax(0, 1.6fr) minmax(22rem, 0.75fr);
    align-items: end;
  }

  .workbench {
    grid-template-columns: minmax(17rem, 0.66fr) minmax(0, 1.5fr);
    grid-template-areas:
      "control viewer"
      "result viewer";
    align-items: start;
  }

  .viewer-panel {
    position: sticky;
    top: 5.5rem;
  }

  .result-panel {
    align-self: start;
  }

  .weight-workbench {
    grid-template-columns: minmax(19rem, 0.68fr) minmax(0, 1.55fr);
    align-items: start;
  }

  .weight-summary {
    position: sticky;
    top: 5.5rem;
    max-height: calc(100dvh - 6.5rem);
    overflow-y: auto;
  }

  .weight-editor-inner {
    padding: 1.7rem;
  }

  .weight-editor-header {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .weight-fields {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 86rem) {
  .app-header {
    padding-inline: max(3.5rem, calc((100vw - 86rem) / 2));
  }

  .workbench {
    grid-template-columns: minmax(18rem, 0.64fr) minmax(0, 1.7fr) minmax(18rem, 0.62fr);
    grid-template-areas: "control viewer result";
  }

  .result-panel {
    position: sticky;
    top: 5.5rem;
  }
}

@media (max-width: 31rem) {
  .local-status {
    font-size: 0;
  }

  .local-status .status-light {
    display: block;
  }

  .brand-copy strong {
    font-size: 0.84rem;
  }

  .tool-tab {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .tool-tab > span {
    grid-row: auto;
  }

  .tool-tab strong {
    font-size: 0.72rem;
  }

  .viewer-footer {
    padding-bottom: calc(0.75rem + env(safe-area-inset-bottom));
  }
}

/* High-precision field calibration */
.recognition-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  margin-top: 0.75rem;
}
.business-command,
.command-ledger,
.ledger-label,
.ledger-threshold {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}


.recognition-method {
  min-height: 4.15rem;
  padding: 0.7rem 0.65rem;
  border: 1px solid var(--workflow-line);
  border-radius: 0.55rem;
  color: var(--workflow-ink);
  background: #f5f4ef;
  text-align: left;
  cursor: pointer;
}

.recognition-method strong,
.recognition-method span {
  display: block;
}

.recognition-method strong {
  font-size: 0.88rem;
}

.recognition-method span {
  margin-top: 0.2rem;
  color: var(--workflow-muted);
  font-size: 0.7rem;
  line-height: 1.35;
}

.recognition-method.is-active {
  border-color: var(--workflow-ink);
  color: #fff;
  background: var(--workflow-ink);
  box-shadow: inset 0 -3px 0 var(--workflow-accent);
}

.recognition-method.is-active span {
  color: rgba(255, 255, 255, 0.72);
}

.recognition-method:focus-visible,
.calibration-actions button:focus-visible {
  outline: 3px solid rgba(231, 91, 42, 0.25);
  outline-offset: 2px;
}

.recognition-panel {
  margin-top: 1rem;
}

.compact-heading {
  margin-bottom: 0.35rem;
}

.compact-heading label,
.calibration-filter span {
  color: var(--workflow-ink);
  font-size: 0.8rem;
  font-weight: 720;
}

.calibration-status {
  padding: 0.85rem;
  border-left: 4px solid var(--workflow-accent);
  border-radius: 0.35rem;
  background: #eceae2;
}

.calibration-status > span,
.calibration-status > strong {
  display: block;
}

.calibration-status > span {
  color: var(--workflow-accent-dark);
  font-size: 0.68rem;
  font-weight: 800;
}

.calibration-status > strong {
  margin-top: 0.18rem;
  font-size: 0.95rem;
}

.calibration-status p {
  margin: 0.35rem 0 0;
  color: var(--workflow-muted);
  font-size: 0.76rem;
  line-height: 1.5;
}

.calibration-steps {
  display: grid;
  gap: 0.55rem;
  margin: 0.9rem 0;
  padding: 0;
  list-style: none;
}

.calibration-steps li {
  display: grid;
  grid-template-columns: 1.8rem 1fr;
  gap: 0.55rem;
  align-items: center;
  color: #807d72;
}

.calibration-steps li > span {
  display: grid;
  width: 1.8rem;
  height: 1.8rem;
  place-items: center;
  border: 1px solid #bbb8ad;
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 800;
}

.calibration-steps strong,
.calibration-steps small {
  display: block;
}

.calibration-steps strong {
  font-size: 0.8rem;
}

.calibration-steps small {
  margin-top: 0.1rem;
  font-size: 0.68rem;
}

.calibration-steps li.is-current {
  color: var(--workflow-ink);
}

.calibration-steps li.is-current > span {
  border-color: var(--workflow-accent);
  color: #fff;
  background: var(--workflow-accent);
}

.calibration-steps li.is-complete > span {
  border-color: #33745a;
  color: #fff;
  background: #33745a;
}

.calibration-filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.calibration-filter output {
  font-family: var(--workflow-mono);
  font-size: 0.78rem;
  font-weight: 800;
}

.calibration-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  margin-top: 0.85rem;
}

.calibration-actions .primary-button {
  grid-column: 1 / -1;
}

.calibration-actions button {
  min-height: 2.75rem;
}

.calibration-help {
  margin-top: 0.85rem;
  color: var(--workflow-muted);
  font-size: 0.74rem;
}

.calibration-help summary {
  min-height: 2.75rem;
  padding-top: 0.75rem;
  color: var(--workflow-ink);
  font-weight: 750;
  cursor: pointer;
}

.calibration-help p {
  margin: 0.35rem 0 0;
  line-height: 1.6;
}

.calibration-hud {
  position: absolute;
  z-index: 5;
  top: 0.75rem;
  left: 0.75rem;
  max-width: min(25rem, calc(100% - 1.5rem));
  padding: 0.65rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-left: 4px solid #f1723f;
  border-radius: 0.45rem;
  color: #fff;
  background: rgba(28, 30, 27, 0.92);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
  pointer-events: none;
}

.calibration-hud span,
.calibration-hud strong {
  display: block;
}

.calibration-hud span {
  color: #ffc3a8;
  font-size: 0.66rem;
  font-weight: 800;
}

.calibration-hud strong {
  margin-top: 0.12rem;
  font-size: 0.82rem;
  line-height: 1.4;
}

.canvas-wrap.is-calibrating canvas {
  cursor: crosshair;
}

.verification-section {
  padding: 1rem;
  border-top: 1px solid var(--workflow-line);
  border-bottom: 1px solid var(--workflow-line);
  background: #fff8e8;
}

.verification-section[hidden] {
  display: none;
}

.verification-kicker {
  margin: 0 0 0.8rem;
  color: var(--workflow-accent-dark);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.verification-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.6rem 0;
  border-top: 1px solid rgba(72, 67, 56, 0.12);
}

.verification-row span {
  color: var(--workflow-muted);
  font-size: 0.78rem;
}

.verification-row strong {
  text-align: right;
  font-size: 0.78rem;
}

.verification-row strong.is-pass {
  color: #177044;
}

.verification-row strong.is-review {
  color: #a3411d;
}

.verification-note,
.verification-section small {
  display: block;
  color: var(--workflow-muted);
  font-size: 0.72rem;
  line-height: 1.6;
}

.verification-section .primary-button {
  width: 100%;
  min-height: 3rem;
  margin: 0.8rem 0 0.55rem;
}

@media (max-width: 31rem) {
  .recognition-method {
    min-height: 4.6rem;
  }

  .mode-button,
  .viewer-actions .secondary-button {
    min-height: 2.75rem;
  }

  .calibration-hud {
    position: sticky;
    top: 0.45rem;
    margin: 0.45rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}