:root {
  --ink: #111315;
  --ink-soft: #3e464d;
  --muted: #67717b;
  --line: #d7dde2;
  --line-strong: #b8c2ca;
  --paper: #ffffff;
  --paper-soft: #f7f9f8;
  --paper-tint: #eef8f1;
  --green: #0b6b3a;
  --green-dark: #064f2a;
  --green-soft: #e6f4eb;
  --red: #c7332e;
  --red-soft: #fff0ef;
  --amber: #b77808;
  --amber-soft: #fff6df;
  --blue-gray: #40576a;
  --radius: 6px;
  --shadow: 0 12px 28px rgba(17, 19, 21, 0.08);
  --container: 1400px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration-color: rgba(11, 107, 58, 0.4);
  text-underline-offset: 0.18em;
}

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

button {
  color: inherit;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  transform: translateY(-160%);
  background: var(--ink);
  color: #fff;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 72px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding: 0.85rem max(1rem, calc((100vw - var(--container)) / 2));
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: clamp(1.35rem, 1.8vw, 1.9rem);
  line-height: 1;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.brand > span:last-child span {
  color: var(--green);
}

.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  grid-template-columns: 4px 2px 6px 3px;
  gap: 3px;
  align-items: stretch;
  padding: 6px;
  color: #fff;
  background: var(--green);
  border-radius: 5px;
}

.brand-mark span {
  background: currentColor;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 2vw, 2.3rem);
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.site-nav a,
.footer-inner a {
  text-decoration: none;
}

.site-nav a:hover,
.footer-inner a:hover {
  color: var(--green);
  text-decoration: underline;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.language-menu {
  position: relative;
}

.language-menu summary {
  cursor: pointer;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.55rem 0.75rem;
  font-size: 0.9rem;
}

.language-menu summary::-webkit-details-marker {
  display: none;
}

.language-menu div {
  position: absolute;
  right: 0;
  top: calc(100% + 0.4rem);
  min-width: 170px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.35rem;
}

.language-menu a {
  display: block;
  padding: 0.55rem 0.65rem;
  text-decoration: none;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 42px;
  padding: 0.72rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: var(--green);
}

.button:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(11, 107, 58, 0.52);
  outline-offset: 2px;
}

.button:disabled {
  color: var(--muted);
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
}

.button-primary {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.button-primary:hover {
  background: var(--green-dark);
  border-color: var(--green-dark);
}

.button-secondary {
  background: #fff;
  color: var(--ink);
}

.button-small {
  min-height: 34px;
  padding: 0.45rem 0.65rem;
  font-size: 0.86rem;
}

.button-download {
  width: 100%;
  color: var(--green);
  border-color: rgba(11, 107, 58, 0.55);
  background: var(--green-soft);
}

.header-cta {
  white-space: nowrap;
}

main {
  width: 100%;
}

.tool-dock {
  position: sticky;
  top: 72px;
  z-index: 15;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  max-width: var(--container);
  margin: 0 auto;
  border: 1px solid var(--line);
  border-top: 0;
  background: #fff;
}

.tool-dock a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border-right: 1px solid var(--line);
  color: var(--ink-soft);
  font-weight: 800;
  text-decoration: none;
}

.tool-dock a:last-child {
  border-right: 0;
}

.tool-dock a:hover {
  color: var(--green);
  background: var(--paper-soft);
}

.tool-dock span {
  display: inline-grid;
  place-items: center;
  min-width: 38px;
  min-height: 24px;
  padding: 0.2rem 0.35rem;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.68rem;
  color: var(--green);
  background: var(--paper);
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(360px, 0.68fr) minmax(680px, 1.32fr);
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: start;
  padding: clamp(3.3rem, 5vw, 4.4rem) max(1rem, calc((100vw - var(--container)) / 2)) 3rem;
  min-height: calc(100vh - 120px);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.hero-left {
  display: grid;
  gap: 1.25rem;
}

.hero-copy {
  padding-top: clamp(1.2rem, 3vw, 2.2rem);
}

.hero-copy h1 {
  max-width: 620px;
  margin: 0;
  font-size: clamp(3.2rem, 4.45vw, 4.9rem);
  line-height: 0.98;
  font-weight: 850;
}

.hero-copy p {
  max-width: 42rem;
  margin: 1.7rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
}

.hero-actions {
  display: grid;
  gap: 0.85rem;
  max-width: 390px;
  margin-top: 2.1rem;
}

.friction-note {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  max-width: 420px;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(11, 107, 58, 0.25);
  border-radius: var(--radius);
  background: var(--green-soft);
  color: var(--ink-soft) !important;
  font-size: 0.98rem !important;
}

.friction-icon {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  border: 2px solid var(--green);
  border-radius: 50%;
  color: var(--green);
  font-size: 0.8rem;
  font-weight: 800;
}

.job-ticket {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-soft);
  overflow: hidden;
}

.job-ticket-head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.job-ticket-head h2 {
  margin: 0;
  font-size: 1rem;
}

.job-ticket dl {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0.3rem 1rem 0.9rem;
}

.job-ticket dl div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1rem;
  padding: 0.62rem 0;
  border-bottom: 1px solid var(--line);
}

.job-ticket dl div:last-child {
  border-bottom: 0;
}

.job-ticket dt,
.job-ticket dd {
  margin: 0;
}

.job-ticket dt {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.job-ticket dd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 850;
}

.job-ticket-bar {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr 0.55fr 1fr;
  gap: 3px;
  padding: 0 1rem 1rem;
}

.job-ticket-bar span {
  height: 34px;
  background: repeating-linear-gradient(90deg, var(--ink) 0 2px, transparent 2px 5px);
  opacity: 0.68;
}

.scan-icon {
  width: 22px;
  height: 22px;
  border: 2px solid var(--green);
  border-left-color: transparent;
  border-right-color: transparent;
  position: relative;
}

.scan-icon::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 8px;
  border-top: 2px solid var(--green);
}

.tool-panel {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 1px 0 rgba(17, 19, 21, 0.03);
  overflow: hidden;
}

.tool-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.35rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.tool-panel h2,
.tool-panel h3,
.section-intro h2,
.conversion-band h2,
.guide-index h2,
.faq-section h2,
.guide-section h2,
.related-tools h2 {
  margin: 0;
  line-height: 1.12;
}

.tool-panel-head h2 {
  font-size: clamp(1.15rem, 1.8vw, 1.55rem);
}

.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink-soft);
  white-space: nowrap;
}

.file-chip strong {
  padding: 0.22rem 0.45rem;
  border: 1px solid rgba(11, 107, 58, 0.35);
  border-radius: var(--radius);
  color: var(--green);
  background: var(--green-soft);
  font-size: 0.82rem;
}

.doc-icon,
.workflow-icon,
.format-icon,
.guide-barcode {
  flex: 0 0 auto;
}

.doc-icon {
  width: 20px;
  height: 24px;
  border: 1.5px solid var(--blue-gray);
  border-radius: 2px;
  position: relative;
}

.doc-icon::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -1px;
  width: 8px;
  height: 8px;
  border-left: 1.5px solid var(--blue-gray);
  border-bottom: 1.5px solid var(--blue-gray);
  background: #fff;
}

.generator-grid {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
}

.generator-controls {
  display: grid;
  gap: 1rem;
  padding: 1.35rem 1.5rem;
  border-right: 1px solid var(--line);
}

.generator-controls label,
.calculator-form label {
  display: grid;
  gap: 0.4rem;
  color: var(--ink);
  font-weight: 750;
  font-size: 0.92rem;
}

.generator-controls small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.generator-controls input,
.generator-controls select,
.calculator-form input,
.calculator-form select,
.checker-input textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}

.generator-controls select,
.generator-controls input,
.calculator-form input,
.calculator-form select {
  min-height: 42px;
  padding: 0.55rem 0.75rem;
}

.column-fieldset,
.preset-fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.column-fieldset legend,
.preset-fieldset legend {
  margin-bottom: 0.4rem;
  font-weight: 750;
  font-size: 0.92rem;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.preset-row .button {
  min-height: 34px;
  flex: 1 1 auto;
  font-size: 0.78rem;
}

.preset-row .button.active {
  color: var(--green);
  border-color: rgba(11, 107, 58, 0.65);
  background: var(--green-soft);
}

.column-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
}

.column-actions span {
  padding: 0.55rem 0.75rem;
  color: var(--ink-soft);
}

.column-actions .button {
  border-top: 0;
  border-right: 0;
  border-bottom: 0;
  border-radius: 0;
}

.column-list {
  display: none;
  grid-template-columns: 1fr;
  gap: 0.3rem;
  margin-top: 0.55rem;
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-soft);
}

.column-list.open {
  display: grid;
}

.column-list label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 650;
}

.ready-line {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.ready-line span:first-child {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 1.5px solid var(--green);
  border-radius: 50%;
  color: var(--green);
}

.ready-line span:first-child::before {
  content: "";
  width: 6px;
  height: 10px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(42deg);
  margin-top: -2px;
}

.sheet-preview {
  min-width: 0;
  overflow: hidden;
  padding: 1.35rem 0 0;
}

.sheet-preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 1.5rem 1rem;
}

.sheet-preview h3 {
  font-size: 1rem;
}

.live-dot {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--green);
  font-size: 0.9rem;
  font-weight: 750;
}

.live-dot span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
}

.responsive-table {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 0.91rem;
}

th,
td {
  padding: 0.72rem 0.75rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #f5f6f5;
  font-size: 0.8rem;
  font-weight: 800;
}

td {
  font-variant-numeric: tabular-nums;
}

#template-preview-table td,
#template-preview-table th,
#checker-preview-table td,
#checker-preview-table th {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.82rem;
}

.variance-positive {
  color: var(--green);
  font-weight: 800;
}

.variance-negative,
.issue-cell {
  color: var(--red);
  font-weight: 800;
}

.issue-cell {
  background: var(--red-soft);
}

.row-has-issue td:first-child {
  border-left: 4px solid var(--red);
}

.row-ok td:first-child {
  border-left: 4px solid var(--green);
}

.row-status {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  padding: 0.15rem 0.35rem;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 850;
}

.row-has-issue .row-status {
  color: var(--red);
  border-color: rgba(199, 51, 46, 0.35);
  background: var(--red-soft);
}

.row-ok .row-status {
  color: var(--green);
  border-color: rgba(11, 107, 58, 0.35);
  background: var(--green-soft);
}

.output-manifest {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--line);
  background: var(--paper-soft);
}

.output-manifest h3 {
  margin: 0;
  font-size: 0.95rem;
}

.output-manifest ol {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.output-manifest li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 0.5rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 750;
}

.output-manifest li span {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--muted);
  background: #fff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
}

.output-manifest li.active {
  color: var(--green);
}

.output-manifest li.active span {
  color: #fff;
  border-color: var(--green);
  background: var(--green);
}

.output-manifest p {
  grid-column: 2;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.sticky-output-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.75rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid rgba(11, 107, 58, 0.24);
  border-radius: var(--radius);
  background: var(--green-soft);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.workflow-strip,
.prep-section,
.starter-section,
.checker-panel,
.calculator-panel,
.method-section,
.conversion-band,
.guide-index,
.faq-section,
.related-tools {
  max-width: var(--container);
  margin: 0 auto;
}

.workflow-strip {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  padding: 2.5rem 1rem;
  border-bottom: 1px solid var(--line);
}

.workflow-strip h2 {
  max-width: 11ch;
  margin: 0;
  font-size: clamp(1.7rem, 2.5vw, 2.4rem);
  line-height: 1.12;
}

.workflow-items {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem;
}

.workflow-items article {
  display: grid;
  grid-template-columns: 50px 1fr;
  column-gap: 1rem;
  align-items: start;
}

.workflow-items h3,
.workflow-items p {
  margin: 0;
}

.workflow-items p {
  color: var(--muted);
  font-size: 0.95rem;
}

.workflow-icon {
  width: 44px;
  height: 44px;
  position: relative;
  color: var(--green);
}

.workflow-icon-1 {
  border: 2px solid currentColor;
  border-radius: 4px;
}

.workflow-icon-1::after {
  content: "CSV";
  position: absolute;
  inset: 12px 5px 5px;
  display: grid;
  place-items: center;
  font-size: 0.7rem;
  font-weight: 850;
}

.workflow-icon-2 {
  background: repeating-linear-gradient(90deg, currentColor 0 3px, transparent 3px 8px);
}

.workflow-icon-3 {
  border: 3px solid currentColor;
  border-radius: 50%;
}

.workflow-icon-3::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 8px;
  width: 12px;
  height: 20px;
  border-right: 3px solid currentColor;
  border-bottom: 3px solid currentColor;
  transform: rotate(42deg);
}

.prep-section,
.method-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.45fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
  padding: 3rem 1rem 1rem;
}

.prep-list {
  counter-reset: prep;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.prep-list li {
  display: grid;
  gap: 0.8rem;
  min-height: 180px;
  padding: 1rem;
  border-right: 1px solid var(--line);
  background: #fff;
}

.prep-list li:last-child {
  border-right: 0;
}

.prep-list span {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 850;
}

.prep-list p {
  margin: 0;
  align-self: end;
  color: var(--ink-soft);
  font-weight: 700;
}

.section-intro {
  max-width: 440px;
}

.section-label {
  margin: 0 0 0.75rem;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.section-intro h2,
.tool-copy h2,
.conversion-band h2,
.guide-index h2,
.faq-section h2,
.related-tools h2 {
  font-size: clamp(1.8rem, 3vw, 3rem);
}

.section-intro p,
.tool-copy p,
.conversion-band p,
.guide-index p,
.guide-summary,
.guide-header p {
  color: var(--muted);
}

.starter-section {
  padding: 3rem 1rem 1.5rem;
}

.kit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.4rem;
  counter-reset: kit;
}

.kit-item {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  counter-increment: kit;
  position: relative;
}

.kit-item::before {
  content: "KIT-" counter(kit, decimal-leading-zero);
  align-self: flex-start;
  padding: 0.18rem 0.4rem;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  color: var(--blue-gray);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 850;
}

.kit-item h3,
.kit-item p {
  margin: 0;
}

.kit-item h3 {
  font-size: 1rem;
}

.kit-item p {
  color: var(--muted);
  font-size: 0.92rem;
}

.format-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 48px;
  border: 1.5px solid var(--green);
  border-radius: 3px;
  color: var(--green);
  background: var(--paper);
  font-size: 0.65rem;
  font-weight: 850;
  position: relative;
}

.format-icon::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -1px;
  border-top: 10px solid var(--paper);
  border-left: 10px solid rgba(11, 107, 58, 0.22);
}

.mini-sheet {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, 18px);
  border: 1px solid var(--line);
  background: var(--paper-soft);
}

.mini-sheet span {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.mini-sheet span:nth-child(4n) {
  border-right: 0;
}

.mini-sheet-2 {
  display: block;
  padding: 0.65rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.66rem;
  line-height: 1.65;
}

.mini-sheet-2::before {
  content: "SKU,Barcode,Location,Qty\A A1001,1234567890123,A01-01,10\A A1002,1234567890124,A01-02,";
  white-space: pre;
}

.checker-panel,
.calculator-panel {
  margin-top: 2rem;
  padding: 2rem;
}

.tool-copy {
  margin-bottom: 1.5rem;
}

.tool-copy p:last-child {
  max-width: 560px;
  margin-bottom: 0;
}

.checker-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(360px, 1.05fr) minmax(240px, 0.65fr);
  gap: 2rem;
  align-items: start;
}

.checker-input textarea {
  min-height: 150px;
  padding: 0.9rem;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.5;
}

.tab-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 0.8rem;
}

.tab {
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  padding: 0.35rem 0;
  font-weight: 800;
  cursor: pointer;
}

.tab.active,
.file-tab:hover {
  color: var(--green);
  border-bottom-color: var(--green);
}

.file-tab {
  cursor: pointer;
}

#csv-upload {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.button-row {
  display: flex;
  gap: 0.7rem;
  margin-top: 0.8rem;
  flex-wrap: wrap;
}

.checker-status {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}

.checker-status span {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-soft);
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 750;
}

.checker-status strong {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--ink);
}

.score-legend {
  margin: -0.35rem 0 0.8rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.score-good .checker-status span:nth-child(2) {
  border-color: rgba(11, 107, 58, 0.35);
  background: var(--green-soft);
}

.score-warn .checker-status span:nth-child(2) {
  border-color: rgba(183, 120, 8, 0.35);
  background: var(--amber-soft);
}

.score-bad .checker-status span:nth-child(2) {
  border-color: rgba(199, 51, 46, 0.35);
  background: var(--red-soft);
}

.checker-preview h3,
.issues-panel h3,
.calculator-result h3 {
  margin: 0 0 0.8rem;
  font-size: 1rem;
}

.checker-preview,
.calculator-result {
  min-width: 0;
  overflow: hidden;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

.issues-panel {
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.issues-panel dl {
  display: grid;
  gap: 0;
  margin: 0;
}

.issue-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
}

.issue-row dt {
  font-weight: 800;
}

.issue-row dd {
  display: grid;
  place-items: center;
  min-width: 26px;
  height: 26px;
  margin: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
  font-weight: 850;
}

.issue-row.has-issue dd {
  color: var(--red);
  background: var(--red-soft);
  border-color: rgba(199, 51, 46, 0.25);
}

.issue-row.ok dd {
  color: var(--green);
  background: var(--green-soft);
  border-color: rgba(11, 107, 58, 0.25);
}

.issue-row small {
  display: block;
  color: var(--muted);
  font-weight: 500;
}

.issue-total {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 1rem 0 0;
  font-weight: 850;
}

.issue-total::before {
  content: "OK";
  display: inline-grid;
  place-items: center;
  font-size: 0.62rem;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  color: var(--green);
  background: var(--green-soft);
  border: 1px solid rgba(11, 107, 58, 0.25);
}

.issue-total.has-issues::before {
  content: "FIX";
  color: var(--red);
  background: var(--red-soft);
  border-color: rgba(199, 51, 46, 0.25);
}

.checker-verdict {
  margin: 0.65rem 0 0;
  color: var(--ink-soft);
  font-weight: 750;
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.78fr);
  gap: 2.5rem;
  align-items: start;
}

.calculator-form {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  gap: 1rem;
  align-items: end;
}

.calculator-form .button {
  grid-column: span 2;
  justify-self: start;
}

.calculator-result {
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.result-callout {
  margin: 1rem 0 0;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(11, 107, 58, 0.35);
  border-radius: var(--radius);
  background: var(--green-soft);
  color: var(--ink-soft);
  font-weight: 750;
}

.result-recommendation {
  margin: 0.8rem 0 0;
  color: var(--ink-soft);
}

.active-method td {
  background: var(--green-soft);
  font-weight: 800;
}

.spec-table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.spec-table {
  min-width: 640px;
}

.spec-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: #fff;
  font-weight: 850;
  color: var(--green);
}

.spec-table th:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
}

.conversion-band {
  display: grid;
  grid-template-columns: 170px 1fr auto;
  gap: 2rem;
  align-items: center;
  margin-top: 2rem;
  padding: 2rem;
  border: 1px solid rgba(11, 107, 58, 0.18);
  border-radius: var(--radius);
  background: var(--green-soft);
}

.barcode-card {
  display: grid;
  gap: 0.3rem;
  place-items: center;
  padding: 1rem;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.barcode-card strong,
.barcode-card small {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.barcode-card span {
  width: 120px;
  height: 44px;
  background: repeating-linear-gradient(90deg, #111 0 2px, transparent 2px 5px, #111 5px 8px, transparent 8px 12px);
}

.check-list {
  display: grid;
  gap: 0.55rem;
  padding: 0;
  margin: 1rem 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 1.65rem;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.25rem;
  width: 7px;
  height: 12px;
  border-right: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
  transform: rotate(42deg);
}

.conversion-actions {
  display: grid;
  gap: 0.75rem;
  justify-items: stretch;
  min-width: 210px;
}

.conversion-actions a:last-child {
  color: var(--green);
  font-weight: 800;
  text-decoration: none;
}

.guide-index,
.faq-section,
.related-tools {
  padding: 4rem 1rem 0;
}

.guide-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.guide-links a {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 0.2rem 0.85rem;
  min-height: 132px;
  padding: 1rem;
  text-decoration: none;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.guide-links a:nth-child(4n) {
  border-right: 0;
}

.guide-links a:hover {
  background: var(--paper-soft);
}

.guide-links strong {
  align-self: end;
}

.guide-links span:last-child {
  grid-column: 2;
  color: var(--muted);
  font-size: 0.91rem;
}

.guide-barcode {
  width: 28px;
  height: 38px;
  background: repeating-linear-gradient(90deg, var(--ink) 0 2px, transparent 2px 5px);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 1.5rem;
}

details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

summary {
  cursor: pointer;
  padding: 0.95rem 1rem;
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 1rem 1rem;
  color: var(--muted);
}

.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--line);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.3rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-inner p {
  margin: 0;
}

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

.guide-layout {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
}

.guide-sidebar {
  position: sticky;
  top: 72px;
  align-self: start;
  height: calc(100vh - 72px);
  padding: 2rem 2rem 1rem;
  border-right: 1px solid var(--line);
  background: var(--paper-soft);
}

.guide-sidebar p:first-child {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  font-weight: 850;
  text-transform: uppercase;
}

.guide-sidebar nav {
  display: grid;
  gap: 0.55rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.guide-sidebar nav a {
  padding: 0.35rem 0.2rem;
  color: var(--ink-soft);
  text-decoration: none;
}

.guide-sidebar nav a:hover {
  color: var(--green);
  text-decoration: underline;
}

.sidebar-download {
  display: grid;
  gap: 0.7rem;
  margin-top: 1.5rem;
  padding: 1rem;
  border: 1px solid rgba(11, 107, 58, 0.22);
  border-radius: var(--radius);
  background: var(--green-soft);
}

.sidebar-download p,
.sidebar-download strong {
  margin: 0;
}

.sidebar-download p {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.guide-article {
  min-width: 0;
  padding: 2rem clamp(1rem, 4vw, 3rem) 0;
}

.guide-article.single-column {
  max-width: var(--container);
  margin: 0 auto;
  padding-top: 0;
}

.guide-header {
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--line);
}

.guide-header h1,
.checker-hero h1 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 4.4rem);
  line-height: 0.98;
}

.guide-header p,
.checker-hero p {
  max-width: 760px;
  margin: 1rem 0 0;
  font-size: 1.15rem;
}

.guide-summary {
  margin: 1rem 0 1.8rem;
  padding: 1rem;
  border-left: 4px solid var(--green);
  background: var(--green-soft);
}

.embedded-tool {
  margin: 1.4rem 0 2rem;
}

.embedded-tool .tool-panel {
  box-shadow: none;
}

.embedded-tool .checker-panel,
.embedded-tool .calculator-panel {
  margin-top: 0;
}

.embedded-tool .checker-grid {
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.embedded-generator .generator-grid {
  grid-template-columns: 280px minmax(0, 1fr);
}

.guide-section {
  padding: 1.7rem 0;
  border-top: 1px solid var(--line);
}

.guide-section h2 {
  font-size: clamp(1.55rem, 2.3vw, 2.25rem);
}

.guide-section p {
  color: var(--ink-soft);
}

.workflow-table th:first-child,
.workflow-table td:first-child {
  width: 72px;
  text-align: center;
  font-weight: 850;
}

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

.download-row a {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 0.1rem 0.85rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
}

.download-row a span:last-child {
  grid-column: 2;
  color: var(--muted);
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.glossary-grid article {
  min-height: 150px;
  padding: 1rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.glossary-grid article:nth-child(3n) {
  border-right: 0;
}

.glossary-grid dfn {
  display: inline-block;
  margin-bottom: 0.6rem;
  color: var(--green);
  font-style: normal;
  font-weight: 850;
}

.glossary-grid p {
  margin: 0;
  color: var(--ink-soft);
}

.related-tools {
  max-width: var(--container);
}

.guide-links.compact {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.guide-links.compact a {
  min-height: 118px;
}

.checker-hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 4rem 1rem 1.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 2rem;
  align-items: end;
}

.checker-hero .guide-summary {
  margin: 0;
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    order: 3;
    grid-column: 1 / -1;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .hero-section,
  .calculator-grid,
  .checker-grid,
  .conversion-band,
  .prep-section,
  .method-section,
  .checker-hero {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: 14ch;
  }

  .kit-grid,
  .prep-list,
  .guide-links,
  .guide-links.compact,
  .glossary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .guide-links a:nth-child(4n) {
    border-right: 1px solid var(--line);
  }

  .guide-links a:nth-child(2n) {
    border-right: 0;
  }

  .calculator-form {
    grid-template-columns: repeat(3, minmax(140px, 1fr));
  }

  .guide-layout {
    grid-template-columns: 1fr;
  }

  .guide-sidebar {
    position: relative;
    top: auto;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 820px) {
  .site-header {
    padding-inline: 1rem;
  }

  .header-actions {
    width: 100%;
    grid-column: 1 / -1;
  }

  .header-cta {
    flex: 1;
  }

  .hero-section {
    padding-top: 2rem;
    min-height: auto;
  }

  .tool-dock {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-inline: 1rem;
    border-top: 1px solid var(--line);
  }

  .tool-dock a:nth-child(2n) {
    border-right: 0;
  }

  .generator-grid,
  .embedded-generator .generator-grid,
  .workflow-strip {
    grid-template-columns: 1fr;
  }

  .generator-controls {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .workflow-items,
  .prep-list,
  .kit-grid,
  .faq-grid,
  .download-row,
  .output-manifest,
  .output-manifest ol,
  .glossary-grid {
    grid-template-columns: 1fr;
  }

  .prep-list li,
  .glossary-grid article,
  .glossary-grid article:nth-child(3n) {
    border-right: 0;
  }

  .output-manifest p {
    grid-column: auto;
  }

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

  .calculator-form .button {
    grid-column: auto;
    width: 100%;
  }

  .conversion-actions {
    min-width: 0;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .brand {
    font-size: 1.25rem;
  }

  .brand-mark {
    width: 26px;
    height: 26px;
    padding: 5px;
  }

  .site-nav {
    gap: 1rem;
    font-size: 0.92rem;
  }

  .tool-panel-head,
  .sheet-preview-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .file-chip {
    white-space: normal;
  }

  .checker-panel,
  .calculator-panel,
  .conversion-band {
    padding: 1rem;
  }

  .sticky-output-cta,
  .checker-status {
    grid-template-columns: 1fr;
  }

  .sticky-output-cta {
    align-items: stretch;
    flex-direction: column;
  }

  .guide-links,
  .guide-links.compact,
  .glossary-grid {
    grid-template-columns: 1fr;
  }

  .guide-links a,
  .guide-links a:nth-child(2n),
  .guide-links a:nth-child(4n) {
    border-right: 0;
  }

  .guide-sidebar,
  .guide-article {
    padding-inline: 1rem;
  }

  th,
  td {
    padding: 0.6rem 0.65rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}

.noscript-note {
  max-width: var(--container);
  margin: 1rem auto;
  padding: 1rem;
  border: 1px solid var(--amber);
  border-radius: var(--radius);
  background: var(--amber-soft);
  color: var(--ink-soft);
  font-weight: 750;
}

@media print {
  .site-header,
  .tool-dock,
  .hero-actions,
  .sticky-output-cta,
  .conversion-band,
  .guide-sidebar,
  .site-footer,
  .button,
  .tab-row,
  .checker-input,
  .language-menu {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  main,
  .hero-section,
  .guide-layout,
  .guide-article {
    display: block;
    max-width: none;
    padding: 0;
    border: 0;
  }

  .tool-panel,
  .kit-item,
  .issues-panel,
  .calculator-result,
  details {
    box-shadow: none;
    border-color: #999;
  }

  table {
    min-width: 0;
    font-size: 10pt;
  }

  th,
  td {
    padding: 5pt;
    border-color: #999;
  }

  a {
    text-decoration: none;
  }
}