.experiment-answer,
.experiment-section,
.experiment-scope {
  width: 100%;
  box-sizing: border-box;
  margin-top: 18px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.hero + .experiment-answer {
  margin-top: 0;
  border-left: 5px solid var(--accent);
  background: linear-gradient(135deg, var(--accent-soft), #fff);
}

.experiment-answer__copy h2,
.experiment-section h2 {
  margin: 0 0 8px;
}

.experiment-answer__copy p,
.experiment-section p,
.experiment-section li,
.experiment-scope p {
  line-height: 1.62;
}

.experiment-answer__copy .eyebrow {
  margin-bottom: 5px;
}

.experiment-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin: 18px 0 0;
}

.experiment-metrics > div {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .86);
}

.experiment-metrics dt {
  color: var(--muted);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.experiment-metrics dd {
  margin: 4px 0 0;
  overflow-wrap: anywhere;
  color: var(--navy);
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  font-weight: 850;
  line-height: 1.15;
}

.experiment-metrics small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  line-height: 1.4;
}

.experiment-assumptions {
  margin-top: 15px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .7);
}

.experiment-assumptions ul,
.experiment-related ul,
.experiment-sources ul {
  margin: 8px 0 0;
  padding-left: 1.25rem;
}

.experiment-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: .92rem;
}

.experiment-jump {
  display: inline-flex;
  min-height: 44px;
  box-sizing: border-box;
  align-items: center;
  margin-top: 8px;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  font-weight: 800;
}

.experiment-jump:hover,
.experiment-jump:focus-visible {
  background: var(--navy-deep);
  color: #fff;
}

.experiment-scope {
  border-color: #d9b85f;
  background: #fff8df;
}

.experiment-scope strong {
  color: #654c08;
  font-size: 1.05rem;
}

.experiment-scope p {
  margin: 6px 0 0;
}

.experiment-table-wrap {
  max-width: 100%;
  margin-top: 14px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  scrollbar-gutter: stable;
  -webkit-overflow-scrolling: touch;
}

.experiment-table-wrap:focus-visible {
  outline: 3px solid rgba(24, 50, 74, .28);
  outline-offset: 3px;
}

.experiment-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  background: #fff;
}

.experiment-table caption {
  padding: 13px 14px;
  color: var(--ink);
  font-weight: 800;
  text-align: left;
}

.experiment-table th,
.experiment-table td {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  text-align: right;
  white-space: nowrap;
}

.experiment-table th {
  background: var(--surface-soft);
  font-size: .86rem;
  vertical-align: bottom;
}

.experiment-table th[scope="row"],
.experiment-table th:first-child,
.experiment-table td:first-child {
  text-align: left;
}

.experiment-table thead tr:first-child th {
  border-top: 0;
}

.experiment-faq-item {
  margin-top: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
}

.experiment-faq-item summary {
  min-height: 50px;
  box-sizing: border-box;
  padding: 13px 15px;
  font-weight: 800;
  line-height: 1.4;
  cursor: pointer;
}

.experiment-faq-item summary:focus-visible {
  outline: 3px solid rgba(24, 50, 74, .25);
  outline-offset: -3px;
}

.experiment-faq-item > div {
  padding: 0 15px 15px;
}

.experiment-faq-item p {
  margin: 0;
}

.experiment-related a,
.experiment-sources a {
  font-weight: 800;
}

.form-tube-calculator {
  margin-top: 18px;
}

.form-tube-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.form-tube-fields label {
  display: grid;
  gap: 6px;
  font-weight: 750;
}

.form-tube-fields input,
.form-tube-fields select {
  width: 100%;
  min-height: 44px;
  box-sizing: border-box;
}

.form-tube-fields small {
  color: var(--muted);
  font-weight: 500;
  line-height: 1.4;
}

.form-tube-results[hidden] {
  display: none;
}

.form-tube-errors:empty {
  display: none;
}

.form-tube-errors {
  margin-top: 12px;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: #fff0f0;
  color: #7a1717;
}

@media (max-width: 760px) {
  .experiment-answer,
  .experiment-section,
  .experiment-scope {
    padding: 17px;
  }

  .experiment-metrics,
  .form-tube-fields {
    grid-template-columns: 1fr;
  }

  .experiment-table {
    min-width: 680px;
  }
}

/* A curb card's two desktop columns do not fit safely on portrait tablets. */
@media (min-width: 761px) and (max-width: 920px) {
  .linear-project-card.kerb-project-card {
    grid-template-columns: minmax(0, 1fr);
  }

  .linear-project-card.kerb-project-card .kerb-inputs {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }

  .linear-project-card.kerb-project-card .kerb-visual {
    grid-column: 1;
    grid-row: 2;
    width: 100%;
    max-width: 360px;
  }

  .linear-project-card.kerb-project-card .grid.geometry-fields label:has(> input[type="number"]) {
    display: grid;
    width: 100%;
    max-width: 100%;
    white-space: normal;
  }

  .linear-project-card.kerb-project-card .grid.geometry-fields label > .field-label {
    white-space: normal;
  }

  .linear-project-card.kerb-project-card .grid.geometry-fields label > input[type="number"],
  .linear-project-card.kerb-project-card .grid.geometry-fields label > small {
    grid-column: auto;
    grid-row: auto;
    width: 100%;
    max-width: 100%;
  }

  .results .result-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .results .result-grid dl {
    grid-template-columns: minmax(0, 1fr);
    gap: 3px 0;
  }

  .results .result-grid dl dt,
  .results .result-grid dl dd {
    grid-column: 1;
    min-width: 0;
    text-align: left;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .results .result-grid dl dd {
    margin-bottom: 10px;
  }
}

@media print {
  .experiment-table-wrap {
    overflow: visible;
  }

  .experiment-table {
    min-width: 0;
    font-size: 8pt;
  }
}