:root {
  --qa-brand: #5e8034;
  --qa-brand-dark: #405a22;
  --qa-brand-soft: #edf1e7;
  --qa-tech: #345e80;
  --qa-ink: #183127;
  --qa-muted: #607066;
  --qa-line: #cbd4c7;
  --qa-paper: #fffdf9;
  --qa-canvas: #f5efe6;
  --qa-warning: #8a5b20;
  --qa-danger: #a53f36;
  --qa-radius: 14px;
}

.qa-system {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 40px 72px;
  color: var(--qa-ink);
}

.qa-system *,
.qa-system *::before,
.qa-system *::after {
  box-sizing: border-box;
}

.qa-system [hidden] {
  display: none !important;
}

.qa-system__header {
  padding: 34px;
  border-radius: 18px 18px 0 0;
  background: var(--qa-brand);
  color: #fff;
}

.qa-system__kicker,
.qa-section__index,
.qa-summary__label,
.qa-report__eyebrow {
  margin: 0 0 8px;
  font: 700 0.72rem/1.4 var(--mono, ui-monospace, monospace);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.qa-system__kicker {
  color: #eff7e7;
}

.qa-system__header h2 {
  max-width: 820px;
  margin: 0;
  color: #fff;
  font-size: clamp(1.65rem, 3vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.qa-system__intro {
  max-width: 820px;
  margin: 14px 0 0;
  color: #f1f4ec;
  font-size: 0.96rem;
  line-height: 1.75;
}

.qa-flow {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  margin-top: 26px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.22);
}

.qa-flow span {
  min-height: 58px;
  padding: 11px 12px;
  background: rgba(35, 55, 20, 0.16);
  color: #fff;
  font-size: 0.72rem;
  line-height: 1.45;
}

.qa-flow strong {
  display: block;
  margin-bottom: 2px;
  color: #fff;
  font: 700 0.62rem/1.3 var(--mono, ui-monospace, monospace);
  letter-spacing: 0.08em;
}

.qa-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(260px, 0.82fr);
  gap: 22px;
  align-items: start;
  padding: 26px;
  border: 1px solid var(--qa-line);
  border-top: 0;
  border-radius: 0 0 18px 18px;
  background: var(--qa-canvas);
}

.qa-form {
  display: grid;
  gap: 16px;
}

.qa-section,
.qa-summary,
.qa-report {
  border: 1px solid var(--qa-line);
  border-radius: var(--qa-radius);
  background: var(--qa-paper);
}

.qa-section {
  padding: 24px;
}

.qa-section__head {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.qa-section__index {
  color: var(--qa-brand);
}

.qa-section h3,
.qa-report h3,
.qa-report h4 {
  margin: 0;
  color: var(--qa-ink);
}

.qa-section h3 {
  font-size: 1.18rem;
  line-height: 1.35;
}

.qa-section__description {
  max-width: 560px;
  margin: 5px 0 0;
  color: var(--qa-muted);
  font-size: 0.8rem;
  line-height: 1.65;
}

.qa-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}

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

.qa-field {
  min-width: 0;
}

.qa-field--full {
  grid-column: 1 / -1;
}

.qa-label {
  display: block;
  margin-bottom: 7px;
  color: var(--qa-ink);
  font-size: 0.75rem;
  font-weight: 750;
  line-height: 1.4;
}

.qa-input,
.qa-select,
.qa-textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid #b8c4b5;
  border-radius: 8px;
  background: #fff;
  color: var(--qa-ink);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.45;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.qa-input,
.qa-textarea {
  padding: 10px 12px;
}

.qa-select {
  padding: 9px 34px 9px 12px;
}

.qa-textarea {
  min-height: 88px;
  resize: vertical;
}

.qa-input:focus,
.qa-select:focus,
.qa-textarea:focus {
  outline: 0;
  border-color: var(--qa-tech);
  box-shadow: 0 0 0 3px rgba(52, 94, 128, 0.14);
}

.qa-input[readonly] {
  background: #f1f3ef;
  color: #4f5e54;
}

.qa-help {
  margin: 6px 0 0;
  color: var(--qa-muted);
  font-size: 0.68rem;
  line-height: 1.55;
}

.qa-custom-assistance a {
  color: var(--qa-tech);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.qa-details {
  margin-top: 15px;
  border-top: 1px solid var(--qa-line);
}

.qa-details summary {
  padding: 14px 0 0;
  color: var(--qa-tech);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 750;
}

.qa-details__body {
  padding-top: 15px;
}

.qa-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.qa-check {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  min-height: 40px;
  padding: 8px 11px;
  border: 1px solid var(--qa-line);
  border-radius: 8px;
  background: #fff;
  color: var(--qa-ink);
  font-size: 0.72rem;
}

.qa-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--qa-brand);
}

.qa-medium-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.qa-medium {
  position: relative;
  min-width: 0;
}

.qa-medium input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.qa-medium label {
  display: flex;
  min-height: 136px;
  flex-direction: column;
  padding: 15px;
  border: 1px solid var(--qa-line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.qa-medium label:hover {
  border-color: var(--qa-brand);
}

.qa-medium input:focus-visible + label {
  outline: 3px solid rgba(52, 94, 128, 0.24);
  outline-offset: 2px;
}

.qa-medium input:checked + label {
  border-color: var(--qa-brand);
  background: var(--qa-brand-soft);
  box-shadow: inset 0 0 0 1px var(--qa-brand);
}

.qa-medium__code {
  color: var(--qa-brand);
  font: 750 0.63rem/1.3 var(--mono, ui-monospace, monospace);
  letter-spacing: 0.07em;
}

.qa-medium__name {
  margin-top: 7px;
  color: var(--qa-ink);
  font-size: 0.82rem;
  font-weight: 780;
  line-height: 1.4;
}

.qa-medium__note {
  margin-top: 6px;
  color: var(--qa-muted);
  font-size: 0.67rem;
  line-height: 1.5;
}

.qa-medium__status {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 10px;
  color: var(--qa-tech);
  font: 700 0.58rem/1.3 var(--mono, ui-monospace, monospace);
}

.qa-evidence {
  margin-top: 16px;
  padding: 14px 15px;
  border-left: 4px solid var(--qa-tech);
  background: #eef3f6;
  color: #2a475d;
  font-size: 0.73rem;
  line-height: 1.65;
}

.qa-evidence[data-state="warning"] {
  border-left-color: var(--qa-warning);
  background: #f8f0e5;
  color: #6d4618;
}

.qa-evidence strong {
  display: block;
  margin-bottom: 2px;
}

.qa-custom-assistance {
  padding: 16px;
  border: 1px dashed #9eaf9a;
  border-radius: 10px;
  background: #f8faf6;
}

.qa-custom-assistance p {
  margin: 6px 0 0;
  color: var(--qa-muted);
  font-size: 0.72rem;
  line-height: 1.65;
}

.qa-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding-top: 4px;
}

.qa-button {
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font: 750 0.77rem/1.3 inherit;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.qa-button--primary {
  background: var(--qa-brand);
  color: #fff;
}

.qa-button--primary:hover {
  background: var(--qa-brand-dark);
}

.qa-button--secondary {
  border-color: var(--qa-tech);
  background: transparent;
  color: var(--qa-tech);
}

.qa-button--secondary:hover {
  background: #eef3f6;
}

.qa-button--quiet {
  border-color: var(--qa-line);
  background: #fff;
  color: var(--qa-ink);
}

.qa-summary {
  position: sticky;
  top: 92px;
  overflow: hidden;
}

.qa-summary__head {
  padding: 18px 20px;
  background: var(--qa-brand);
  color: #fff;
}

.qa-summary__label {
  color: #edf4e6;
}

.qa-summary__head h3 {
  margin: 0;
  color: #fff;
  font-size: 1rem;
}

.qa-summary__body {
  padding: 6px 20px 20px;
}

.qa-summary__row {
  padding: 13px 0;
  border-bottom: 1px solid var(--qa-line);
}

.qa-summary__row dt {
  color: var(--qa-muted);
  font-size: 0.61rem;
  font-weight: 700;
  letter-spacing: 0.07em;
}

.qa-summary__row dd {
  margin: 4px 0 0;
  color: var(--qa-ink);
  font-size: 0.78rem;
  font-weight: 720;
  line-height: 1.45;
}

.qa-summary__foot {
  margin: 16px 0 0;
  color: var(--qa-muted);
  font-size: 0.66rem;
  line-height: 1.55;
}

.qa-report {
  margin-top: 24px;
  overflow: hidden;
}

.qa-report__header {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  justify-content: space-between;
  padding: 28px;
  background: var(--qa-brand);
  color: #fff;
}

.qa-report__eyebrow {
  color: #edf4e6;
}

.qa-report__header h3 {
  color: #fff;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.qa-report__meta {
  min-width: 210px;
  text-align: right;
  color: #f4f7f0;
  font: 600 0.7rem/1.65 var(--mono, ui-monospace, monospace);
}

.qa-report__badge {
  display: inline-block;
  margin-bottom: 7px;
  padding: 5px 8px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  color: #fff;
  font-size: 0.62rem;
  font-weight: 750;
}

.qa-report__body {
  padding: 28px;
}

.qa-report__metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--qa-line);
  border-radius: 10px;
  background: var(--qa-line);
}

.qa-report__metric {
  min-height: 94px;
  padding: 15px;
  background: #fff;
}

.qa-report__metric span {
  display: block;
  color: var(--qa-muted);
  font-size: 0.61rem;
  font-weight: 700;
}

.qa-report__metric strong {
  display: block;
  margin-top: 7px;
  color: var(--qa-ink);
  font-size: 0.9rem;
  line-height: 1.4;
}

.qa-report__section {
  margin-top: 26px;
}

.qa-report__section h4 {
  padding-bottom: 9px;
  border-bottom: 1px solid var(--qa-line);
  font-size: 1rem;
}

.qa-report__section-lead {
  margin: 9px 0 0;
  color: var(--qa-muted);
  font-size: 0.72rem;
  line-height: 1.6;
}

.qa-report__data-types {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-top: 12px;
  border: 1px solid var(--qa-line);
  border-radius: 8px;
  background: var(--qa-line);
}

.qa-report__data-types div {
  padding: 11px 12px;
  background: #fff;
}

.qa-report__data-types strong,
.qa-report__data-types span {
  display: block;
}

.qa-report__data-types strong {
  color: var(--qa-ink);
  font-size: 0.68rem;
}

.qa-report__data-types span {
  margin-top: 4px;
  color: var(--qa-muted);
  font-size: 0.61rem;
  line-height: 1.5;
}

.qa-report__table-wrap {
  overflow-x: auto;
  margin-top: 12px;
}

.qa-report__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.72rem;
}

.qa-report__table th,
.qa-report__table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--qa-line);
  text-align: left;
  vertical-align: top;
}

.qa-report__table th {
  width: 22%;
  color: var(--qa-muted);
  font-weight: 700;
}

.qa-chart-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: 14px;
  margin-top: 14px;
}

.qa-chart-card {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--qa-line);
  border-radius: 10px;
  background: #fff;
}

.qa-chart-card h5 {
  margin: 0;
  color: var(--qa-ink);
  font-size: 0.78rem;
}

.qa-chart-card p {
  margin: 5px 0 0;
  color: var(--qa-muted);
  font-size: 0.66rem;
  line-height: 1.55;
}

.qa-chart-wrap {
  position: relative;
  min-height: 300px;
  margin-top: 10px;
}

.qa-chart-wrap canvas {
  display: block;
  width: 100%;
  height: 300px;
}

.qa-chart-empty {
  display: grid;
  min-height: 300px;
  margin-top: 10px;
  place-items: center;
  padding: 24px;
  border: 1px dashed #aab7a7;
  border-radius: 8px;
  background: #f7f8f4;
  color: var(--qa-muted);
  text-align: center;
  font-size: 0.72rem;
  line-height: 1.65;
}

.qa-report__notice-list {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.qa-report__notice-list li {
  padding: 11px 13px;
  border-left: 3px solid var(--qa-warning);
  background: #faf4ea;
  color: #67451c;
  font-size: 0.72rem;
  line-height: 1.6;
}

.qa-report__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--qa-line);
}

.qa-report__privacy {
  flex-basis: 100%;
  margin: 4px 0 0;
  color: var(--qa-muted);
  font-size: 0.66rem;
  line-height: 1.55;
}

.qa-report__footer {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 18px;
  padding: 13px 0 0;
  border-top: 1px solid var(--qa-line);
  color: var(--qa-muted);
  font-size: 0.66rem;
  line-height: 1.55;
}

.qa-report__footer strong {
  color: var(--qa-ink);
}

.qa-report__footer a {
  color: inherit;
  text-decoration: none;
}

/* Simplified H-value page: essential inputs first, professional detail on demand. */
.hv-hero .rigor-method-grid {
  display: none;
}

.hv-product-strip {
  display: grid;
  grid-template-columns: minmax(210px, 0.7fr) minmax(0, 2fr);
  gap: 26px;
  align-items: center;
  max-width: 1144px;
  margin: 0 auto 22px;
  padding: 18px 22px;
  border: 1px solid var(--qa-line);
  border-left: 4px solid var(--qa-brand);
  background: var(--qa-paper);
}

.hv-product-strip h2,
.hv-product-strip p {
  margin: 0;
}

.hv-product-strip h2 {
  color: var(--qa-ink);
  font-size: 1rem;
  line-height: 1.4;
}

.hv-product-strip p {
  margin-top: 4px;
  color: var(--qa-muted);
  font-size: 0.72rem;
  line-height: 1.55;
}

.hv-product-strip nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--qa-line);
}

.hv-product-strip a {
  display: grid;
  min-width: 0;
  gap: 2px;
  padding: 10px 12px;
  background: #fff;
  color: var(--qa-ink);
  text-decoration: none;
}

.hv-product-strip a:hover,
.hv-product-strip a:focus-visible {
  background: var(--qa-brand-soft);
}

.hv-product-strip a strong {
  color: var(--qa-brand);
  font-size: 0.74rem;
  line-height: 1.35;
}

.hv-product-strip a span {
  overflow: hidden;
  color: var(--qa-muted);
  font-size: 0.66rem;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hv-history {
  margin: 18px 0 0;
  border-top: 1px solid var(--qa-line);
}

.hv-history summary {
  padding: 14px 0;
  color: var(--qa-tech);
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 700;
}

.hv-history .hv-table-section {
  margin-top: 0;
}

.qa-system {
  padding-top: 0;
}

.qa-system__header {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 26px 20px;
  border: 1px solid var(--qa-line);
  border-top: 4px solid var(--qa-brand);
  border-radius: 12px 12px 0 0;
  background: var(--qa-paper);
  color: var(--qa-ink);
}

.qa-system__header h2 {
  color: var(--qa-ink);
  font-size: clamp(1.35rem, 2.3vw, 1.85rem);
}

.qa-system__intro {
  margin-top: 8px;
  color: var(--qa-muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.qa-simple-flow {
  margin: 14px 0 0;
  color: var(--qa-brand-dark);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.5;
}

.qa-simple-flow span {
  margin: 0 7px;
  color: #9aa594;
}

.qa-layout {
  display: block;
  max-width: 900px;
  margin: 0 auto;
  padding: 14px 0 0;
  border: 0;
  background: transparent;
}

.qa-form {
  gap: 12px;
}

.qa-section {
  padding: 21px 22px;
  border-radius: 10px;
  box-shadow: none;
}

.qa-section__head {
  margin-bottom: 15px;
}

.qa-section h3 {
  font-size: 1.02rem;
}

.qa-grid {
  gap: 13px;
}

.qa-label {
  margin-bottom: 6px;
  font-size: 0.72rem;
}

.qa-input,
.qa-select {
  min-height: 42px;
  font-size: 0.78rem;
}

.qa-details {
  margin-top: 13px;
}

.qa-details summary {
  padding-top: 12px;
  font-size: 0.71rem;
}

.qa-details__body {
  padding-top: 13px;
}

.qa-custom-assistance {
  margin-top: 13px;
  padding: 13px;
}

.qa-evidence {
  display: flex;
  gap: 8px;
  align-items: baseline;
  margin-top: 10px;
  padding: 9px 11px;
  border-left-width: 3px;
  font-size: 0.68rem;
  line-height: 1.5;
}

.qa-evidence + .qa-evidence {
  margin-top: 6px;
}

.qa-evidence strong {
  flex: 0 0 auto;
  margin: 0;
}

.qa-actions {
  padding-top: 2px;
}

.qa-button--quiet {
  border-color: transparent;
  background: transparent;
  color: var(--qa-muted);
}

.qa-button--quiet:hover {
  background: var(--qa-brand-soft);
  color: var(--qa-ink);
}

@media (max-width: 900px) {
  .hv-product-strip {
    margin-right: 20px;
    margin-left: 20px;
  }

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

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

  .qa-summary {
    position: static;
  }

  .qa-medium-grid,
  .qa-report__metrics,
  .qa-report__data-types {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .qa-chart-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hv-product-strip {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 18px;
    padding: 16px;
  }

  .hv-product-strip nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .qa-system {
    padding: 0 16px 48px;
  }

  .qa-system__header,
  .qa-report__header,
  .qa-report__body {
    padding: 20px 17px;
  }

  .qa-layout {
    padding: 12px 0 0;
  }

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

  .qa-grid,
  .qa-grid--three,
  .qa-medium-grid,
  .qa-report__metrics,
  .qa-report__data-types {
    grid-template-columns: 1fr;
  }

  .qa-section {
    padding: 18px 16px;
  }

  .qa-section__head,
  .qa-report__header {
    display: block;
  }

  .qa-report__meta {
    margin-top: 16px;
    text-align: left;
  }

  .qa-medium label {
    min-height: 112px;
  }

  .qa-button {
    width: 100%;
  }

  .qa-evidence {
    display: block;
  }

  .qa-evidence strong {
    margin-bottom: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .qa-system *,
  .qa-system *::before,
  .qa-system *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

@media print {
  @page {
    size: A4;
    margin: 14mm;
  }

  body {
    background: #fff !important;
  }

  #nav-mount,
  #footer-mount,
  .hv-page > :not(.qa-system),
  .hv-related,
  .qa-system__header,
  .qa-layout,
  .contact-fab,
  .contact-panel,
  .dht-data-types,
  .qa-report__actions {
    display: none !important;
  }

  .hv-page,
  .qa-system {
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .qa-report {
    display: block !important;
    margin: 0 !important;
    border: 0 !important;
    border-radius: 0 !important;
  }

  .qa-report__header {
    display: flex !important;
    padding: 18px !important;
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }

  .qa-report__body {
    padding: 18px 0 !important;
  }

  .qa-chart-grid,
  .qa-report__metrics {
    break-inside: avoid;
  }

  .qa-report__section {
    break-inside: avoid;
  }

  .qa-report__footer {
    break-inside: avoid;
    color: #40483d !important;
  }
}