.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.tool-hero,
.tool-section,
.viewer-handoff,
.quote-tool-rail,
.local-start-paths,
.local-capabilities,
.local-proof {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

.tool-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: 64px;
  align-items: end;
  padding-block: 74px 42px;
  border-bottom: 1px solid var(--border);
}

.tool-hero h1 {
  max-width: 850px;
  margin: 12px 0 20px;
  font-size: 62px;
  line-height: 1.02;
  letter-spacing: 0;
}

.tool-hero > div:first-child > p:last-child {
  max-width: 780px;
  margin: 0;
  color: var(--muted-foreground);
  font-size: 19px;
}

.tool-hero-note {
  padding: 22px 0 4px 24px;
  border-left: 2px solid var(--brand);
}

.tool-hero-note strong,
.tool-hero-note span {
  display: block;
}

.tool-hero-note span {
  margin-top: 6px;
  color: var(--muted-foreground);
}

.tool-section {
  padding-block: 42px 80px;
}

.stl-tool {
  min-width: 0;
}

.stl-viewer-mount {
  min-height: 260px;
}

.stl-tool [hidden] {
  display: none !important;
}

.stl-dropzone {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  min-height: 260px;
  padding: 48px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface-muted);
  transition: border-color 180ms ease, background 180ms ease;
}

.stl-dropzone.is-dragging {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.stl-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.stl-dropzone-mark {
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--brand);
  box-shadow: 0 12px 28px rgba(21, 23, 26, 0.08);
}

.stl-dropzone-mark span {
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 0;
}

.stl-dropzone h2 {
  margin: 0 0 6px;
  font-size: 30px;
  line-height: 1.15;
}

.stl-dropzone p {
  margin: 0;
  color: var(--muted-foreground);
}

.stl-dropzone .stl-privacy-note {
  grid-column: 2 / -1;
  max-width: 760px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}

.stl-loaded-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: 0 24px 60px rgba(21, 23, 26, 0.08);
}

.stl-viewport-column {
  min-width: 0;
  background: var(--surface-muted);
}

.stl-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: space-between;
  min-height: 58px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.stl-toolbar-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.stl-toolbar button,
.text-button,
.copy-email-button {
  min-height: 36px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--surface);
  color: var(--foreground);
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.stl-toolbar button:hover,
.stl-toolbar button[aria-pressed="true"],
.copy-email-button:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.stl-viewport {
  position: relative;
  min-height: 610px;
  outline: none;
  touch-action: none;
}

.stl-viewport:focus-visible {
  box-shadow: inset 0 0 0 3px var(--brand);
}

.stl-viewport canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 610px;
}

.stl-viewport-message {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 12px;
  padding: 40px;
  text-align: center;
  background: rgba(246, 247, 249, 0.93);
  color: var(--muted-foreground);
}

.stl-viewport-message[hidden] {
  display: none;
}

.stl-spinner {
  width: 28px;
  height: 28px;
  margin: 0 auto;
  border: 3px solid var(--border);
  border-top-color: var(--brand);
  border-radius: 50%;
  animation: stl-spin 700ms linear infinite;
}

.stl-axis-label {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--muted-foreground);
  font-size: 11px;
  font-weight: 800;
}

.stl-gesture-note {
  margin: 0;
  padding: 8px 14px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted-foreground);
  font-size: 12px;
}

.stl-info-panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 28px;
  border-left: 1px solid var(--border);
}

.stl-file-summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.stl-file-summary h2 {
  max-width: 220px;
  margin: 5px 0 4px;
  overflow-wrap: anywhere;
  font-size: 20px;
  line-height: 1.2;
}

.stl-file-summary p {
  margin: 0;
  color: var(--muted-foreground);
  font-size: 13px;
}

.text-button {
  flex: 0 0 auto;
  min-height: auto;
  padding: 0;
  border: 0;
  color: var(--brand);
}

.stl-unit-fieldset {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 0;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.stl-unit-fieldset legend {
  padding: 0 4px;
  font-size: 14px;
  font-weight: 900;
}

.stl-unit-fieldset > p {
  grid-column: 1 / -1;
  margin: 0 0 7px;
  color: var(--muted-foreground);
  font-size: 12px;
}

.stl-unit-fieldset label {
  display: flex;
  gap: 7px;
  align-items: center;
  font-size: 13px;
  font-weight: 800;
}

.stl-unit-fieldset input {
  accent-color: var(--brand);
}

.stl-metrics {
  margin: 0;
  border-top: 1px solid var(--border);
}

.stl-metrics div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
}

.stl-metrics dt {
  color: var(--muted-foreground);
  font-size: 12px;
  font-weight: 700;
}

.stl-metrics dd {
  margin: 0;
  text-align: right;
  font-size: 13px;
  font-weight: 900;
}

.stl-warnings {
  padding: 14px;
  border-left: 3px solid var(--brand);
  background: var(--brand-soft);
}

.stl-warnings p {
  margin: 0;
  color: #334155;
  font-size: 12px;
}

.stl-warnings p + p {
  margin-top: 7px;
}

.stl-info-actions {
  display: grid;
  gap: 13px;
  margin-top: auto;
}

.stl-error {
  padding: 52px;
  border: 1px solid #e0c5c0;
  border-radius: var(--radius);
  background: #fff8f6;
}

.stl-error h2 {
  margin: 8px 0;
}

.viewer-handoff,
.quote-tool-rail {
  display: flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.viewer-handoff h2,
.quote-tool-rail h2 {
  margin: 5px 0;
  font-size: 25px;
}

.viewer-handoff p,
.quote-tool-rail p {
  margin: 0;
  color: var(--muted-foreground);
}

.tool-content {
  padding-top: 40px;
}

.tool-explainer-grid,
.pathway-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.tool-explainer-grid article,
.pathway-grid article {
  min-width: 0;
  padding: 28px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.tool-explainer-grid h3,
.pathway-grid h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.tool-explainer-grid p,
.pathway-grid p {
  margin: 0;
  color: var(--muted-foreground);
}

.tool-faq details {
  border-bottom: 1px solid var(--border);
}

.tool-faq summary {
  padding: 20px 0;
  font-weight: 900;
  cursor: pointer;
}

.tool-faq details p {
  max-width: 820px;
  margin: 0 0 22px;
  color: var(--muted-foreground);
}

.estimate-workspace {
  display: grid;
  gap: 28px;
}

.estimate-configuration {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(180px, 1fr));
  gap: 18px;
  align-items: end;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-muted);
}

.estimate-configuration h2 {
  margin: 5px 0 0;
  font-size: 25px;
}

.estimate-configuration label,
.instant-review-form > label {
  display: grid;
  gap: 7px;
  font-size: 13px;
  font-weight: 900;
}

.estimate-configuration input,
.estimate-configuration select,
.instant-review-form input,
.instant-review-form textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  background: var(--surface);
  color: var(--foreground);
}

.estimate-result-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 22px;
}

.estimate-model-summary,
.estimate-status-card {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.estimate-model-summary h3,
.estimate-status-card h2 {
  margin: 7px 0 15px;
  overflow-wrap: anywhere;
  font-size: 27px;
}

.estimate-model-summary dl {
  margin: 20px 0 0;
}

.estimate-model-summary dl div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  padding: 9px 0;
  border-top: 1px solid var(--border);
}

.estimate-model-summary dt {
  color: var(--muted-foreground);
}

.estimate-model-summary dd {
  margin: 0;
  font-weight: 800;
}

.estimate-status-card {
  border-top: 3px solid var(--brand);
}

.estimate-status-card > p {
  color: var(--muted-foreground);
}

.estimate-status-card .estimate-assumptions {
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
}

.instant-review-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  scroll-margin-top: 100px;
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-muted);
}

.instant-review-form[hidden] {
  display: none;
}

.instant-review-form > div,
.instant-review-form > label:has(textarea),
.instant-review-form .consent-field,
.instant-review-form > button,
.instant-form-status {
  grid-column: 1 / -1;
}

.instant-review-form textarea {
  min-height: 130px;
  resize: vertical;
}

.instant-review-form.is-success {
  border-color: var(--brand);
}

.instant-form-status {
  margin: 0;
  font-weight: 800;
}

.instant-form-status.is-error {
  color: var(--error);
}

.local-page-hero {
  align-items: center;
}

.local-start-paths,
.local-capabilities {
  padding-block: 86px;
}

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

.pathway-grid article > span {
  display: inline-block;
  margin-bottom: 36px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 900;
}

.pathway-grid .text-link {
  display: inline-flex;
  margin-top: 22px;
}

.local-proof {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 70px;
  align-items: center;
  padding-block: 92px;
}

.local-proof figure {
  margin: 0;
}

.local-proof picture,
.local-proof img {
  width: 100%;
}

.local-proof img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.local-proof figcaption {
  padding-top: 10px;
  color: var(--muted-foreground);
  font-size: 12px;
}

.local-proof h2 {
  margin: 8px 0 18px;
  font-size: 44px;
  line-height: 1.08;
}

.local-proof > div > p {
  color: var(--muted-foreground);
}

.copy-email-button {
  margin-left: 8px;
}

@keyframes stl-spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 1100px) {
  .tool-hero {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .tool-hero-note {
    max-width: 560px;
  }

  .stl-loaded-workspace {
    grid-template-columns: minmax(0, 1fr) 300px;
  }

  .estimate-configuration {
    grid-template-columns: 1fr 1fr;
  }

  .estimate-configuration > div {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  .tool-hero,
  .tool-section,
  .viewer-handoff,
  .quote-tool-rail,
  .local-start-paths,
  .local-capabilities,
  .local-proof {
    width: min(100% - 32px, var(--max));
  }

  .tool-hero {
    padding-block: 52px 32px;
  }

  .tool-hero h1 {
    font-size: 44px;
  }

  .stl-dropzone {
    grid-template-columns: auto 1fr;
    padding: 30px;
  }

  .stl-dropzone .button {
    grid-column: 1 / -1;
  }

  .stl-dropzone .stl-privacy-note {
    grid-column: 1 / -1;
  }

  .stl-loaded-workspace {
    grid-template-columns: 1fr;
  }

  .stl-info-panel {
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .stl-viewport,
  .stl-viewport canvas {
    min-height: 470px;
  }

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

  .estimate-result-layout,
  .local-proof {
    grid-template-columns: 1fr;
  }

  .pathway-grid {
    grid-template-columns: 1fr;
  }

  .viewer-handoff,
  .quote-tool-rail {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .tool-hero h1 {
    font-size: 38px;
  }

  .tool-hero > div:first-child > p:last-child {
    font-size: 17px;
  }

  .tool-section {
    padding-block: 28px 58px;
  }

  .stl-dropzone {
    grid-template-columns: 1fr;
    justify-items: start;
    gap: 18px;
    padding: 24px;
  }

  .stl-dropzone h2 {
    font-size: 24px;
  }

  .stl-dropzone .button {
    width: 100%;
  }

  .stl-toolbar {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    scrollbar-width: thin;
  }

  .stl-toolbar-group {
    flex: 0 0 auto;
    flex-wrap: nowrap;
  }

  .stl-toolbar button {
    min-height: 44px;
  }

  .stl-viewport,
  .stl-viewport canvas {
    min-height: 390px;
  }

  .stl-info-panel {
    padding: 22px;
  }

  .stl-file-summary {
    display: grid;
  }

  .stl-unit-fieldset {
    grid-template-columns: 1fr;
  }

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

  .estimate-configuration,
  .instant-review-form {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .estimate-configuration > div,
  .instant-review-form > * {
    grid-column: 1;
  }

  .estimate-model-summary,
  .estimate-status-card {
    padding: 24px;
  }

  .estimate-model-summary dl div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .local-start-paths,
  .local-capabilities,
  .local-proof {
    padding-block: 62px;
  }

  .local-proof h2 {
    font-size: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stl-spinner {
    animation: none;
  }
}